//
using System;
-using System.Collections;
-using System.Collections.Specialized;
+using System.Collections.Generic;
using System.Reflection;
using System.Reflection.Emit;
using System.Runtime.CompilerServices;
using System.Security;
using System.Security.Permissions;
using System.Text;
+using System.Linq;
-#if BOOTSTRAP_WITH_OLDLIB || NET_2_1
+#if NET_2_1
using XmlElement = System.Object;
#else
using System.Xml;
namespace Mono.CSharp {
- public enum Kind {
- Root,
- Struct,
- Class,
- Interface,
- Enum,
- Delegate
- }
-
/// <summary>
/// This is the base class for structs and classes.
/// </summary>
- public abstract class TypeContainer : DeclSpace, IMemberContainer {
-
- public class MemberCoreArrayList: ArrayList
- {
- /// <summary>
- /// Defines the MemberCore objects that are in this array
- /// </summary>
- public virtual void DefineContainerMembers ()
- {
- foreach (MemberCore mc in this) {
- try {
- mc.Define ();
- } catch (Exception e) {
- throw new InternalErrorException (mc, e);
- }
- }
- }
-
- public virtual void Emit ()
- {
- foreach (MemberCore mc in this)
- mc.Emit ();
- }
- }
-
- public class OperatorArrayList: MemberCoreArrayList
- {
- TypeContainer container;
-
- public OperatorArrayList (TypeContainer container)
- {
- this.container = container;
- }
-
- //
- // Checks that some operators come in pairs:
- // == and !=
- // > and <
- // >= and <=
- // true and false
- //
- // They are matched based on the return type and the argument types
- //
- void CheckPairedOperators ()
- {
- bool has_equality_or_inequality = false;
- Operator[] operators = (Operator[]) ToArray (typeof (Operator));
- bool [] has_pair = new bool [operators.Length];
-
- for (int i = 0; i < Count; ++i) {
- if (operators [i] == null)
- continue;
-
- Operator o_a = operators [i];
- Operator.OpType o_type = o_a.OperatorType;
- if (o_type == Operator.OpType.Equality || o_type == Operator.OpType.Inequality)
- has_equality_or_inequality = true;
-
- Operator.OpType matching_type = o_a.GetMatchingOperator ();
- if (matching_type == Operator.OpType.TOP) {
- operators [i] = null;
- continue;
- }
-
- for (int ii = 0; ii < Count; ++ii) {
- Operator o_b = operators [ii];
- if (o_b == null || o_b.OperatorType != matching_type)
- continue;
-
- if (!TypeManager.IsEqual (o_a.ReturnType, o_b.ReturnType))
- continue;
-
- if (!TypeManager.IsEqual (o_a.ParameterTypes, o_b.ParameterTypes))
- continue;
-
- operators [i] = null;
-
- //
- // Used to ignore duplicate user conversions
- //
- has_pair [ii] = true;
- }
- }
-
- for (int i = 0; i < Count; ++i) {
- if (operators [i] == null || has_pair [i])
- continue;
-
- Operator o = operators [i];
- Report.Error (216, o.Location,
- "The operator `{0}' requires a matching operator `{1}' to also be defined",
- o.GetSignatureForError (), Operator.GetName (o.GetMatchingOperator ()));
- }
-
- if (has_equality_or_inequality && Report.WarningLevel > 2) {
- if (container.Methods == null || !container.HasEquals)
- Report.Warning (660, 2, container.Location, "`{0}' defines operator == or operator != but does not override Object.Equals(object o)", container.GetSignatureForError ());
-
- if (container.Methods == null || !container.HasGetHashCode)
- Report.Warning (661, 2, container.Location, "`{0}' defines operator == or operator != but does not override Object.GetHashCode()", container.GetSignatureForError ());
- }
- }
-
- public override void DefineContainerMembers ()
- {
- base.DefineContainerMembers ();
- CheckPairedOperators ();
- }
- }
-
+ public abstract class TypeContainer : DeclSpace, ITypeDefinition
+ {
//
// Different context is needed when resolving type container base
// types. Type names come from the parent scope but type parameter
// names from the container scope.
//
- struct BaseContext : IResolveContext
+ public struct BaseContext : IMemberContext
{
TypeContainer tc;
this.tc = tc;
}
- #region IResolveContext Members
+ #region IMemberContext Members
+
+ public CompilerContext Compiler {
+ get { return tc.Compiler; }
+ }
- public Type CurrentType {
+ public TypeSpec CurrentType {
get { return tc.Parent.CurrentType; }
}
- public TypeContainer CurrentTypeDefinition {
- get { return tc.Parent.CurrentTypeDefinition; }
+ public TypeParameter[] CurrentTypeParameters {
+ get { return tc.PartialContainer.CurrentTypeParameters; }
+ }
+
+ public MemberCore CurrentMemberDefinition {
+ get { return tc; }
+ }
+
+ public bool HasUnresolvedConstraints {
+ get { return true; }
}
- public DeclSpace DeclContainer {
- get { return tc.Parent; }
+ public bool IsObsolete {
+ get { return tc.IsObsolete; }
}
- public bool IsInObsoleteScope {
- get { return tc.IsInObsoleteScope; }
+ public bool IsUnsafe {
+ get { return tc.IsUnsafe; }
}
- public bool IsInUnsafeScope {
- get { return tc.IsInUnsafeScope; }
+ public bool IsStatic {
+ get { return tc.IsStatic; }
}
- public ExtensionMethodGroupExpr LookupExtensionMethod (Type extensionType, string name, Location loc)
+ public string GetSignatureForError ()
{
- return null;
+ return tc.GetSignatureForError ();
}
- public FullNamedExpression LookupNamespaceOrType (string name, Location loc, bool ignore_cs0104)
+ public IList<MethodSpec> LookupExtensionMethod (TypeSpec extensionType, string name, int arity, ref NamespaceEntry scope)
{
- return tc.Parent.LookupNamespaceOrType (name, loc, ignore_cs0104);
+ return null;
}
- public Type LookupTypeParameter (string name)
+ public FullNamedExpression LookupNamespaceAlias (string name)
{
- return tc.PartialContainer.LookupTypeParameter (name);
+ return tc.Parent.LookupNamespaceAlias (name);
}
- public DeclSpace GenericDeclContainer {
- get { return tc.GenericDeclContainer; }
+ public FullNamedExpression LookupNamespaceOrType (string name, int arity, Location loc, bool ignore_cs0104)
+ {
+ if (arity == 0) {
+ TypeParameter[] tp = CurrentTypeParameters;
+ if (tp != null) {
+ TypeParameter t = TypeParameter.FindTypeParameter (tp, name);
+ if (t != null)
+ return new TypeParameterExpr (t, loc);
+ }
+ }
+
+ return tc.Parent.LookupNamespaceOrType (name, arity, loc, ignore_cs0104);
}
#endregion
// Whether this is a struct, class or interface
- public readonly Kind Kind;
+ public readonly MemberKind Kind;
// Holds a list of classes and structures
- protected ArrayList types;
+ protected List<TypeContainer> types;
- MemberCoreArrayList ordered_explicit_member_list;
- MemberCoreArrayList ordered_member_list;
+ List<MemberCore> ordered_explicit_member_list;
+ List<MemberCore> ordered_member_list;
// Holds the list of properties
- MemberCoreArrayList properties;
+ List<MemberCore> properties;
- // Holds the list of delegates
- MemberCoreArrayList delegates;
-
// Holds the list of constructors
- protected MemberCoreArrayList instance_constructors;
+ protected List<Constructor> instance_constructors;
// Holds the list of fields
- protected MemberCoreArrayList fields;
+ protected List<FieldBase> fields;
// Holds a list of fields that have initializers
- protected ArrayList initialized_fields;
+ protected List<FieldInitializer> initialized_fields;
// Holds a list of static fields that have initializers
- protected ArrayList initialized_static_fields;
+ protected List<FieldInitializer> initialized_static_fields;
// Holds the list of constants
- protected MemberCoreArrayList constants;
+ protected List<MemberCore> constants;
// Holds the methods.
- MemberCoreArrayList methods;
+ List<MemberCore> methods;
// Holds the events
- protected MemberCoreArrayList events;
+ protected List<MemberCore> events;
// Holds the indexers
- ArrayList indexers;
+ List<MemberCore> indexers;
// Holds the operators
- MemberCoreArrayList operators;
+ List<MemberCore> operators;
// Holds the compiler generated classes
- ArrayList compiler_generated;
+ List<CompilerGeneratedClass> compiler_generated;
+
+ Dictionary<MethodSpec, Method> hoisted_base_call_proxies;
//
// Pointers to the default constructor and the default static constructor
// This one is computed after we can distinguish interfaces
// from classes from the arraylist `type_bases'
//
- TypeExpr base_type;
- TypeExpr[] iface_exprs;
- Type GenericType;
- GenericTypeParameterBuilder[] nested_gen_params;
+ protected TypeSpec base_type;
+ protected TypeExpr base_type_expr;
+ protected TypeExpr[] iface_exprs;
- protected ArrayList type_bases;
+ protected List<FullNamedExpression> type_bases;
- protected bool members_defined;
+ bool members_defined;
bool members_defined_ok;
+ bool type_defined;
- // The interfaces we implement.
- protected Type[] ifaces;
+ TypeContainer InTransit;
- // The base member cache and our member cache
- MemberCache base_cache;
- protected MemberCache member_cache;
+ GenericTypeParameterBuilder[] all_tp_builders;
public const string DefaultIndexerName = "Item";
private bool seen_normal_indexers = false;
private string indexer_name = DefaultIndexerName;
protected bool requires_delayed_unmanagedtype_check;
+ bool error;
private CachedMethods cached_method;
- ArrayList partial_parts;
+ protected TypeSpec spec;
+ TypeSpec current_type;
+
+ List<TypeContainer> partial_parts;
/// <remarks>
/// The pending methods that need to be implemented
PendingImplementation pending;
public TypeContainer (NamespaceEntry ns, DeclSpace parent, MemberName name,
- Attributes attrs, Kind kind)
+ Attributes attrs, MemberKind kind)
: base (ns, parent, name, attrs)
{
if (parent != null && parent.NamespaceEntry != ns)
this.PartialContainer = this;
}
+ #region Properties
+
+ public override TypeSpec CurrentType {
+ get {
+ if (current_type == null) {
+ if (IsGeneric) {
+ //
+ // Switch to inflated version as it's used by all expressions
+ //
+ var targs = CurrentTypeParameters == null ? TypeSpec.EmptyTypes : CurrentTypeParameters.Select (l => l.Type).ToArray ();
+ current_type = spec.MakeGenericType (targs);
+ } else {
+ current_type = spec;
+ }
+ }
+
+ return current_type;
+ }
+ }
+
+ public override TypeParameter[] CurrentTypeParameters {
+ get {
+ return PartialContainer.type_params;
+ }
+ }
+
+ int CurrentTypeParametersStartIndex {
+ get {
+ int total = all_tp_builders.Length;
+ if (CurrentTypeParameters != null) {
+ return total - CurrentTypeParameters.Length;
+ }
+ return total;
+ }
+ }
+
+ public TypeSpec Definition {
+ get {
+ return spec;
+ }
+ }
+
+ public bool HasMembersDefined {
+ get {
+ return members_defined;
+ }
+ }
+
+ #endregion
+
public bool AddMember (MemberCore symbol)
{
return AddToContainer (symbol, symbol.MemberName.Basename);
}
- protected virtual bool AddMemberType (DeclSpace ds)
+ public bool AddMember (MemberCore symbol, string name)
+ {
+ return AddToContainer (symbol, name);
+ }
+
+ protected virtual bool AddMemberType (TypeContainer ds)
{
return AddToContainer (ds, ds.Basename);
}
return;
if (constants == null)
- constants = new MemberCoreArrayList ();
+ constants = new List<MemberCore> ();
constants.Add (constant);
}
return tc;
if (types == null)
- types = new MemberCoreArrayList ();
- types.Add (tc);
+ types = new List<TypeContainer> ();
+ types.Add (tc);
return tc;
}
protected TypeContainer AddPartial (TypeContainer next_part, string name)
{
next_part.ModFlags |= Modifiers.PARTIAL;
- TypeContainer tc = defined_names [name] as TypeContainer;
-
+ TypeContainer tc = GetDefinition (name) as TypeContainer;
if (tc == null)
return AddTypeContainer (next_part);
next_part.GetSignatureForError ());
}
- if ((tc.ModFlags & Modifiers.Accessibility) != (next_part.ModFlags & Modifiers.Accessibility) &&
+ if ((tc.ModFlags & Modifiers.AccessibilityMask) != (next_part.ModFlags & Modifiers.AccessibilityMask) &&
((tc.ModFlags & Modifiers.DEFAULT_ACCESS_MODIFER) == 0 &&
(next_part.ModFlags & Modifiers.DEFAULT_ACCESS_MODIFER) == 0)) {
Report.SymbolRelatedToPreviousError (tc);
}
if (tc.partial_parts == null)
- tc.partial_parts = new ArrayList (1);
+ tc.partial_parts = new List<TypeContainer> (1);
if ((next_part.ModFlags & Modifiers.DEFAULT_ACCESS_MODIFER) != 0) {
- tc.ModFlags |= next_part.ModFlags & ~(Modifiers.DEFAULT_ACCESS_MODIFER | Modifiers.Accessibility);
+ tc.ModFlags |= next_part.ModFlags & ~(Modifiers.DEFAULT_ACCESS_MODIFER | Modifiers.AccessibilityMask);
} else if ((tc.ModFlags & Modifiers.DEFAULT_ACCESS_MODIFER) != 0) {
- tc.ModFlags &= ~(Modifiers.DEFAULT_ACCESS_MODIFER | Modifiers.Accessibility);
+ tc.ModFlags &= ~(Modifiers.DEFAULT_ACCESS_MODIFER | Modifiers.AccessibilityMask);
tc.ModFlags |= next_part.ModFlags;
} else {
tc.ModFlags |= next_part.ModFlags;
}
+ tc.spec.Modifiers = tc.ModFlags;
+
if (next_part.attributes != null) {
if (tc.attributes == null)
tc.attributes = next_part.attributes;
public void AddDelegate (Delegate d)
{
- if (!AddMemberType (d))
- return;
-
- if (delegates == null)
- delegates = new MemberCoreArrayList ();
-
- delegates.Add (d);
+ AddTypeContainer (d);
}
- private void AddMemberToList (MemberCore mc, ArrayList alist, bool isexplicit)
+ private void AddMemberToList (MemberCore mc, List<MemberCore> alist, bool isexplicit)
{
if (ordered_explicit_member_list == null) {
- ordered_explicit_member_list = new MemberCoreArrayList ();
- ordered_member_list = new MemberCoreArrayList ();
+ ordered_explicit_member_list = new List<MemberCore> ();
+ ordered_member_list = new List<MemberCore> ();
}
if (isexplicit) {
- if (Kind == Kind.Interface) {
+ if (Kind == MemberKind.Interface) {
Report.Error (541, mc.Location,
"`{0}': explicit interface declaration can only be declared in a class or struct",
mc.GetSignatureForError ());
return;
if (methods == null)
- methods = new MemberCoreArrayList ();
+ methods = new List<MemberCore> ();
if (method.MemberName.Left != null)
AddMemberToList (method, methods, true);
ConstructorBuilder.ConstructorName : ConstructorBuilder.TypeConstructorName))
return;
- if (is_static && c.Parameters.IsEmpty){
+ if (is_static && c.ParameterInfo.IsEmpty){
if (default_static_constructor != null) {
Report.SymbolRelatedToPreviousError (default_static_constructor);
Report.Error (111, c.Location,
default_static_constructor = c;
} else {
- if (c.Parameters.IsEmpty)
+ if (c.ParameterInfo.IsEmpty)
default_constructor = c;
if (instance_constructors == null)
- instance_constructors = new MemberCoreArrayList ();
+ instance_constructors = new List<Constructor> ();
instance_constructors.Add (c);
}
return false;
if (fields == null)
- fields = new MemberCoreArrayList ();
+ fields = new List<FieldBase> ();
fields.Add (field);
return true;
}
- if (Kind == Kind.Struct && first_nonstatic_field.Parent != field.Parent) {
+ if (Kind == MemberKind.Struct && first_nonstatic_field.Parent != field.Parent) {
Report.SymbolRelatedToPreviousError (first_nonstatic_field.Parent);
Report.Warning (282, 3, field.Location,
"struct instance field `{0}' found in different declaration from instance field `{1}'",
public void AddProperty (Property prop)
{
- if (!AddMember (prop) ||
- !AddMember (prop.Get) || !AddMember (prop.Set))
+ if (!AddMember (prop))
return;
if (properties == null)
- properties = new MemberCoreArrayList ();
+ properties = new List<MemberCore> ();
if (prop.MemberName.Left != null)
AddMemberToList (prop, properties, true);
if (!AddMember (e))
return;
- if (e is EventProperty) {
- if (!AddMember (e.Add))
- return;
-
- if (!AddMember (e.Remove))
- return;
- }
-
if (events == null)
- events = new MemberCoreArrayList ();
+ events = new List<MemberCore> ();
events.Add (e);
}
public void AddIndexer (Indexer i)
{
if (indexers == null)
- indexers = new ArrayList ();
+ indexers = new List<MemberCore> ();
if (i.IsExplicitImpl)
AddMemberToList (i, indexers, true);
return;
if (operators == null)
- operators = new OperatorArrayList (this);
+ operators = new List<MemberCore> ();
operators.Add (op);
}
Report.Debug (64, "ADD COMPILER GENERATED CLASS", this, c);
if (compiler_generated == null)
- compiler_generated = new ArrayList ();
+ compiler_generated = new List<CompilerGeneratedClass> ();
compiler_generated.Add (c);
}
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
+ public override void ApplyAttributeBuilder (Attribute a, MethodSpec ctor, byte[] cdata, PredefinedAttributes pa)
{
if (a.Type == pa.DefaultMember) {
if (Indexers != null) {
return;
}
}
-
- base.ApplyAttributeBuilder (a, cb, pa);
+
+ if (a.Type == pa.Required) {
+ Report.Error (1608, a.Location, "The RequiredAttribute attribute is not permitted on C# types");
+ return;
+ }
+
+ TypeBuilder.SetCustomAttribute ((ConstructorInfo) ctor.GetMetaInfo (), cdata);
}
public override AttributeTargets AttributeTargets {
}
}
- public ArrayList Types {
+ public IList<TypeContainer> Types {
get {
return types;
}
}
- public MemberCoreArrayList Methods {
+ public IList<MemberCore> Methods {
get {
return methods;
}
}
- public ArrayList Constants {
+ public IList<MemberCore> Constants {
get {
return constants;
}
}
- protected Type BaseType {
+ public TypeSpec BaseType {
get {
- return TypeBuilder.BaseType;
+ return spec.BaseType;
}
}
- public ArrayList Fields {
+ public IList<FieldBase> Fields {
get {
return fields;
}
}
- public ArrayList InstanceConstructors {
+ public IList<Constructor> InstanceConstructors {
get {
return instance_constructors;
}
}
- public ArrayList Properties {
+ public IList<MemberCore> Properties {
get {
return properties;
}
}
- public ArrayList Events {
+ public IList<MemberCore> Events {
get {
return events;
}
}
- public ArrayList Indexers {
+ public IList<MemberCore> Indexers {
get {
return indexers;
}
}
- public ArrayList Operators {
+ public IList<MemberCore> Operators {
get {
return operators;
}
}
- public ArrayList Delegates {
+ public IList<CompilerGeneratedClass> CompilerGeneratedClasses {
get {
- return delegates;
+ return compiler_generated;
}
}
-
+
protected override TypeAttributes TypeAttr {
get {
- return Modifiers.TypeAttr (ModFlags, IsTopLevel) | base.TypeAttr;
+ return ModifiersExtensions.TypeAttr (ModFlags, IsTopLevel) | base.TypeAttr;
+ }
+ }
+
+ public int TypeParametersCount {
+ get {
+ return MemberName.Arity;
}
}
- public string IndexerName {
+ TypeParameterSpec[] ITypeDefinition.TypeParameters {
get {
- return indexers == null ? DefaultIndexerName : indexer_name;
+ // TODO MemberCache: this is going to hurt
+ return PartialContainer.type_params.Select (l => l.Type).ToArray ();
}
}
+ public string GetAttributeDefaultMember ()
+ {
+ return indexers == null ? DefaultIndexerName : indexer_name;
+ }
+
public bool IsComImport {
get {
if (OptAttributes == null)
}
}
+ string ITypeDefinition.Namespace {
+ get {
+ return NamespaceEntry.NS.MemberName.GetSignatureForError ();
+ }
+ }
+
public virtual void RegisterFieldForInitialization (MemberCore field, FieldInitializer expression)
{
if ((field.ModFlags & Modifiers.STATIC) != 0){
if (initialized_static_fields == null) {
PartialContainer.HasStaticFieldInitializer = true;
- initialized_static_fields = new ArrayList (4);
+ initialized_static_fields = new List<FieldInitializer> (4);
}
initialized_static_fields.Add (expression);
} else {
if (initialized_fields == null)
- initialized_fields = new ArrayList (4);
+ initialized_fields = new List<FieldInitializer> (4);
initialized_fields.Add (expression);
}
}
- public void ResolveFieldInitializers (EmitContext ec)
+ public void ResolveFieldInitializers (BlockContext ec)
{
if (partial_parts != null) {
foreach (TypeContainer part in partial_parts) {
DoResolveFieldInitializers (ec);
}
- void DoResolveFieldInitializers (EmitContext ec)
+ void DoResolveFieldInitializers (BlockContext ec)
{
if (ec.IsStatic) {
if (initialized_static_fields == null)
int i;
ExpressionStatement [] init = new ExpressionStatement [initialized_static_fields.Count];
for (i = 0; i < initialized_static_fields.Count; ++i) {
- FieldInitializer fi = (FieldInitializer) initialized_static_fields [i];
+ FieldInitializer fi = initialized_static_fields [i];
ExpressionStatement s = fi.ResolveStatement (ec);
if (s == null) {
s = EmptyExpressionStatement.Instance;
}
for (i = 0; i < initialized_static_fields.Count; ++i) {
- FieldInitializer fi = (FieldInitializer) initialized_static_fields [i];
+ FieldInitializer fi = initialized_static_fields [i];
//
// Need special check to not optimize code like this
// static int a = b = 5;
return;
for (int i = 0; i < initialized_fields.Count; ++i) {
- FieldInitializer fi = (FieldInitializer) initialized_fields [i];
+ FieldInitializer fi = initialized_fields [i];
ExpressionStatement s = fi.ResolveStatement (ec);
if (s == null)
continue;
get { return pending; }
}
- public override bool GetClsCompliantAttributeValue ()
+ public TypeSpec GetAttributeCoClass ()
{
- if (PartialContainer != this)
- return PartialContainer.GetClsCompliantAttributeValue ();
+ if (OptAttributes == null)
+ return null;
+
+ Attribute a = OptAttributes.Search (PredefinedAttributes.Get.CoClass);
+ if (a == null)
+ return null;
+
+ return a.GetCoClassAttributeValue ();
+ }
+
+ public AttributeUsageAttribute GetAttributeUsage (PredefinedAttribute pa)
+ {
+ Attribute a = null;
+ if (OptAttributes != null) {
+ a = OptAttributes.Search (pa);
+ }
- return base.GetClsCompliantAttributeValue ();
+ if (a == null)
+ return null;
+
+ return a.GetAttributeUsageAttribute ();
}
- public virtual void AddBasesForPart (DeclSpace part, ArrayList bases)
+ public virtual void AddBasesForPart (DeclSpace part, List<FullNamedExpression> bases)
{
// FIXME: get rid of partial_parts and store lists of bases of each part here
// assumed, not verified: 'part' is in 'partial_parts'
int count = type_bases.Count;
TypeExpr [] ifaces = null;
- IResolveContext base_context = new BaseContext (this);
+ var base_context = new BaseContext (this);
for (int i = 0, j = 0; i < count; i++){
- FullNamedExpression fne = (FullNamedExpression) type_bases [i];
+ FullNamedExpression fne = type_bases [i];
- //
- // Standard ResolveAsTypeTerminal cannot be used in this case because
- // it does ObsoleteAttribute and constraint checks which require
- // base type to be set
- //
- TypeExpr fne_resolved = fne.ResolveAsBaseTerminal (base_context, false);
+ TypeExpr fne_resolved = fne.ResolveAsTypeTerminal (base_context, false);
if (fne_resolved == null)
continue;
- if (i == 0 && Kind == Kind.Class && !fne_resolved.Type.IsInterface) {
- if (fne_resolved is DynamicTypeExpr)
+ if (i == 0 && Kind == MemberKind.Class && !fne_resolved.Type.IsInterface) {
+ if (fne_resolved.Type == InternalType.Dynamic)
Report.Error (1965, Location, "Class `{0}' cannot derive from the dynamic type",
GetSignatureForError ());
else
- base_class = fne_resolved;
+ base_type = fne_resolved.Type;
+
+ base_class = fne_resolved;
continue;
}
if (fne_resolved.Type.IsInterface) {
for (int ii = 0; ii < j; ++ii) {
- if (TypeManager.IsEqual (fne_resolved.Type, ifaces [ii].Type)) {
+ if (fne_resolved.Type == ifaces [ii].Type) {
Report.Error (528, Location, "`{0}' is already listed in interface list",
fne_resolved.GetSignatureForError ());
break;
}
}
- if (Kind == Kind.Interface && !IsAccessibleAs (fne_resolved.Type)) {
+ if (Kind == MemberKind.Interface && !IsAccessibleAs (fne_resolved.Type)) {
Report.Error (61, fne.Location,
"Inconsistent accessibility: base interface `{0}' is less accessible than interface `{1}'",
fne_resolved.GetSignatureForError (), GetSignatureForError ());
}
} else {
Report.SymbolRelatedToPreviousError (fne_resolved.Type);
- if (Kind != Kind.Class) {
+ if (Kind != MemberKind.Class) {
Report.Error (527, fne.Location, "Type `{0}' in interface list is not an interface", fne_resolved.GetSignatureForError ());
} else if (base_class != null)
Report.Error (1721, fne.Location, "`{0}': Classes cannot have multiple base classes (`{1}' and `{2}')",
return ifaces;
}
- TypeExpr[] GetNormalPartialBases (ref TypeExpr base_class)
+ TypeExpr[] GetNormalPartialBases ()
{
- ArrayList ifaces = new ArrayList (0);
+ var ifaces = new List<TypeExpr> (0);
if (iface_exprs != null)
ifaces.AddRange (iface_exprs);
foreach (TypeContainer part in partial_parts) {
TypeExpr new_base_class;
TypeExpr[] new_ifaces = part.ResolveBaseTypes (out new_base_class);
- if (new_base_class != TypeManager.system_object_expr) {
- if (base_class == TypeManager.system_object_expr)
- base_class = new_base_class;
- else {
- if (new_base_class != null && !TypeManager.IsEqual (new_base_class.Type, base_class.Type)) {
- Report.SymbolRelatedToPreviousError (base_class.Location, "");
- Report.Error (263, part.Location,
- "Partial declarations of `{0}' must not specify different base classes",
- part.GetSignatureForError ());
-
- return null;
- }
+ if (new_base_class != null) {
+ if (base_type_expr != null && new_base_class.Type != base_type) {
+ Report.SymbolRelatedToPreviousError (new_base_class.Location, "");
+ Report.Error (263, part.Location,
+ "Partial declarations of `{0}' must not specify different base classes",
+ part.GetSignatureForError ());
+ } else {
+ base_type_expr = new_base_class;
+ base_type = base_type_expr.Type;
}
}
if (ifaces.Count == 0)
return null;
- return (TypeExpr[])ifaces.ToArray (typeof (TypeExpr));
+ return ifaces.ToArray ();
}
- bool CheckGenericInterfaces (Type[] ifaces)
+ //
+ // Checks that some operators come in pairs:
+ // == and !=
+ // > and <
+ // >= and <=
+ // true and false
+ //
+ // They are matched based on the return type and the argument types
+ //
+ void CheckPairedOperators ()
{
-#if GMCS_SOURCE
- ArrayList already_checked = new ArrayList ();
+ bool has_equality_or_inequality = false;
+ var operators = this.operators.ToArray ();
+ bool[] has_pair = new bool[operators.Length];
+
+ for (int i = 0; i < operators.Length; ++i) {
+ if (operators[i] == null)
+ continue;
+
+ Operator o_a = (Operator) operators[i];
+ Operator.OpType o_type = o_a.OperatorType;
+ if (o_type == Operator.OpType.Equality || o_type == Operator.OpType.Inequality)
+ has_equality_or_inequality = true;
+
+ Operator.OpType matching_type = o_a.GetMatchingOperator ();
+ if (matching_type == Operator.OpType.TOP) {
+ operators[i] = null;
+ continue;
+ }
- for (int i = 0; i < ifaces.Length; i++) {
- Type iface = ifaces [i];
- foreach (Type t in already_checked) {
- if (iface == t)
+ for (int ii = 0; ii < operators.Length; ++ii) {
+ Operator o_b = (Operator) operators[ii];
+ if (o_b == null || o_b.OperatorType != matching_type)
continue;
- Type[] inferred = new Type [CountTypeParameters];
- if (!TypeManager.MayBecomeEqualGenericInstances (iface, t, inferred, null))
+ if (!TypeSpecComparer.IsEqual (o_a.ReturnType, o_b.ReturnType))
continue;
- Report.Error (695, Location,
- "`{0}' cannot implement both `{1}' and `{2}' " +
- "because they may unify for some type parameter substitutions",
- TypeManager.CSharpName (TypeBuilder), TypeManager.CSharpName (iface),
- TypeManager.CSharpName (t));
- return false;
+ if (!TypeSpecComparer.Equals (o_a.ParameterTypes, o_b.ParameterTypes))
+ continue;
+
+ operators[i] = null;
+
+ //
+ // Used to ignore duplicate user conversions
+ //
+ has_pair[ii] = true;
}
+ }
+
+ for (int i = 0; i < operators.Length; ++i) {
+ if (operators[i] == null || has_pair[i])
+ continue;
- already_checked.Add (iface);
+ Operator o = (Operator) operators [i];
+ Report.Error (216, o.Location,
+ "The operator `{0}' requires a matching operator `{1}' to also be defined",
+ o.GetSignatureForError (), Operator.GetName (o.GetMatchingOperator ()));
}
-#endif
- return true;
- }
+ if (has_equality_or_inequality) {
+ if (Methods == null || !HasEquals)
+ Report.Warning (660, 2, Location, "`{0}' defines operator == or operator != but does not override Object.Equals(object o)",
+ GetSignatureForError ());
- bool error = false;
-
+ if (Methods == null || !HasGetHashCode)
+ Report.Warning (661, 2, Location, "`{0}' defines operator == or operator != but does not override Object.GetHashCode()",
+ GetSignatureForError ());
+ }
+ }
+
bool CreateTypeBuilder ()
{
- try {
- Type default_parent = null;
- if (Kind == Kind.Struct)
- default_parent = TypeManager.value_type;
- else if (Kind == Kind.Enum)
- default_parent = TypeManager.enum_type;
-
- //
- // Sets .size to 1 for structs with no instance fields
- //
- int type_size = Kind == Kind.Struct && first_nonstatic_field == null ? 1 : 0;
+ //
+ // Sets .size to 1 for structs with no instance fields
+ //
+ int type_size = Kind == MemberKind.Struct && first_nonstatic_field == null ? 1 : 0;
- if (IsTopLevel){
- if (TypeManager.NamespaceClash (Name, Location)) {
- return false;
- }
+ if (IsTopLevel) {
+ if (GlobalRootNamespace.Instance.IsNamespace (Name)) {
+ Report.Error (519, Location, "`{0}' clashes with a predefined namespace", Name);
+ return false;
+ }
- ModuleBuilder builder = Module.Builder;
- TypeBuilder = builder.DefineType (
- Name, TypeAttr, default_parent, type_size);
- } else {
- TypeBuilder builder = Parent.TypeBuilder;
+ ModuleBuilder builder = Module.Compiled.Builder;
+ TypeBuilder = builder.DefineType (Name, TypeAttr, null, type_size);
+ } else {
+ TypeBuilder builder = Parent.TypeBuilder;
- TypeBuilder = builder.DefineNestedType (
- Basename, TypeAttr, default_parent, type_size);
- }
- } catch (ArgumentException) {
- Report.RuntimeMissingSupport (Location, "static classes");
- return false;
+ TypeBuilder = builder.DefineNestedType (Basename, TypeAttr, null, type_size);
}
- TypeManager.AddUserType (this);
+ spec.SetMetaInfo (TypeBuilder);
+ spec.MemberCache = new MemberCache (this);
+ spec.DeclaringType = Parent.CurrentType;
+
+ if (!IsTopLevel)
+ Parent.MemberCache.AddMember (spec);
if (IsGeneric) {
- string[] param_names = new string [TypeParameters.Length];
+ string[] param_names = new string[TypeParameters.Length];
for (int i = 0; i < TypeParameters.Length; i++)
- param_names [i] = TypeParameters [i].Name;
+ param_names [i] = TypeParameters[i].Name;
-#if GMCS_SOURCE
- GenericTypeParameterBuilder[] gen_params = TypeBuilder.DefineGenericParameters (param_names);
+ all_tp_builders = TypeBuilder.DefineGenericParameters (param_names);
- int offset = CountTypeParameters - CurrentTypeParameters.Length;
- if (offset > 0) {
- nested_gen_params = new GenericTypeParameterBuilder [offset];
- Array.Copy (gen_params, nested_gen_params, offset);
+ int offset = CurrentTypeParametersStartIndex;
+ for (int i = offset; i < all_tp_builders.Length; i++) {
+ CurrentTypeParameters [i - offset].Define (all_tp_builders [i], spec);
}
-
- for (int i = offset; i < gen_params.Length; i++)
- CurrentTypeParameters [i - offset].Define (gen_params [i]);
-#else
- nested_gen_params = null;
- throw new NotSupportedException ();
-#endif
}
return true;
}
- bool DefineBaseTypes ()
+ //
+ // Creates a proxy base method call inside this container for hoisted base member calls
+ //
+ public MethodSpec CreateHoistedBaseCallProxy (ResolveContext rc, MethodSpec method)
{
- iface_exprs = ResolveBaseTypes (out base_type);
- if (partial_parts != null) {
- iface_exprs = GetNormalPartialBases (ref base_type);
- }
+ Method proxy_method;
//
- // GetClassBases calls ResolveBaseTypeExpr() on the various type expressions involved,
- // which in turn should have called DefineType()s on base types if necessary.
+ // One proxy per base method is enough
//
- // None of the code below should trigger DefineType()s on classes that we depend on.
- // Thus, we are eligible to be on the topological sort `type_container_resolve_order'.
- //
- // Let's do it as soon as possible, since code below can call DefineType() on classes
- // that depend on us to be populated before they are.
- //
- if (!(this is CompilerGeneratedClass))
- RootContext.RegisterOrder (this);
-
- if (!CheckRecursiveDefinition (this))
- return false;
-
- if (base_type != null && base_type.Type != null) {
- TypeBuilder.SetParent (base_type.Type);
+ if (hoisted_base_call_proxies == null) {
+ hoisted_base_call_proxies = new Dictionary<MethodSpec, Method> ();
+ proxy_method = null;
+ } else {
+ hoisted_base_call_proxies.TryGetValue (method, out proxy_method);
}
- // add interfaces that were not added at type creation
- if (iface_exprs != null) {
- ifaces = TypeManager.ExpandInterfaces (iface_exprs);
- if (ifaces == null)
- return false;
+ if (proxy_method == null) {
+ string name = CompilerGeneratedClass.MakeName (method.Name, null, "BaseCallProxy", hoisted_base_call_proxies.Count);
+ var cloned_params = ParametersCompiled.CreateFullyResolved (method.Parameters.FixedParameters, method.Parameters.Types);
+ if (method.Parameters.HasArglist) {
+ cloned_params.FixedParameters[0] = new Parameter (null, "__arglist", Parameter.Modifier.NONE, null, Location);
+ cloned_params.Types[0] = TypeManager.runtime_argument_handle_type;
+ }
- foreach (Type itype in ifaces)
- TypeBuilder.AddInterfaceImplementation (itype);
+ GenericMethod generic_method;
+ MemberName member_name;
+ if (method.IsGeneric) {
+ //
+ // Copy all base generic method type parameters info
+ //
+ var hoisted_tparams = method.GenericDefinition.TypeParameters;
+ var targs = new TypeArguments ();
+ var type_params = new TypeParameter[hoisted_tparams.Length];
+ for (int i = 0; i < type_params.Length; ++i) {
+ var tp = hoisted_tparams[i];
+ targs.Add (new TypeParameterName (tp.Name, null, Location));
+ type_params[i] = new TypeParameter (tp, null, null, new MemberName (tp.Name), null);
+ }
+
+ member_name = new MemberName (name, targs, Location);
+ generic_method = new GenericMethod (NamespaceEntry, this, member_name, type_params,
+ new TypeExpression (method.ReturnType, Location), cloned_params);
+ } else {
+ member_name = new MemberName (name);
+ generic_method = null;
+ }
- if (!CheckGenericInterfaces (ifaces))
- return false;
+ // Compiler generated proxy
+ proxy_method = new Method (this, generic_method, new TypeExpression (method.ReturnType, Location),
+ Modifiers.PRIVATE | Modifiers.COMPILER_GENERATED | Modifiers.DEBUGGER_HIDDEN,
+ member_name, cloned_params, null);
- TypeManager.RegisterBuilder (TypeBuilder, ifaces);
- }
+ var block = new ToplevelBlock (Compiler, proxy_method.ParameterInfo, Location);
- return true;
- }
+ var mg = MethodGroupExpr.CreatePredefined (method, method.DeclaringType, Location);
+ mg.InstanceExpression = new BaseThis (method.DeclaringType, Location);
- //
- // Defines the type in the appropriate ModuleBuilder or TypeBuilder.
- //
- public TypeBuilder CreateType ()
- {
- if (TypeBuilder != null)
- return TypeBuilder;
+ // Get all the method parameters and pass them as arguments
+ var real_base_call = new Invocation (mg, block.GetAllParametersArguments ());
+ Statement statement;
+ if (method.ReturnType == TypeManager.void_type)
+ statement = new StatementExpression (real_base_call);
+ else
+ statement = new Return (real_base_call, Location);
- if (error)
- return null;
+ block.AddStatement (statement);
+ proxy_method.Block = block;
- if (!CreateTypeBuilder ()) {
- error = true;
- return null;
+ methods.Add (proxy_method);
+ proxy_method.Define ();
+
+ hoisted_base_call_proxies.Add (method, proxy_method);
}
+ return proxy_method.Spec;
+ }
+
+ bool DefineBaseTypes ()
+ {
+ iface_exprs = ResolveBaseTypes (out base_type_expr);
if (partial_parts != null) {
- foreach (TypeContainer part in partial_parts)
- part.TypeBuilder = TypeBuilder;
+ iface_exprs = GetNormalPartialBases ();
}
- if (Types != null) {
- foreach (TypeContainer tc in Types) {
- if (tc.CreateType () == null) {
- error = true;
- return null;
- }
+ var cycle = CheckRecursiveDefinition (this);
+ if (cycle != null) {
+ Report.SymbolRelatedToPreviousError (cycle);
+ if (this is Interface) {
+ Report.Error (529, Location,
+ "Inherited interface `{0}' causes a cycle in the interface hierarchy of `{1}'",
+ GetSignatureForError (), cycle.GetSignatureForError ());
+ } else {
+ Report.Error (146, Location,
+ "Circular base class dependency involving `{0}' and `{1}'",
+ GetSignatureForError (), cycle.GetSignatureForError ());
}
+
+ base_type = null;
}
- return TypeBuilder;
- }
+ if (iface_exprs != null) {
+ foreach (TypeExpr iface in iface_exprs) {
+ // Prevents a crash, the interface might not have been resolved: 442144
+ if (iface == null)
+ continue;
+
+ var iface_type = iface.Type;
- bool type_defined;
+ if (!spec.AddInterface (iface_type))
+ continue;
+
+ if (iface_type.IsGeneric && spec.Interfaces != null) {
+ foreach (var prev_iface in iface_exprs) {
+ if (prev_iface == iface)
+ break;
+
+ if (!TypeSpecComparer.Unify.IsEqual (iface_type, prev_iface.Type))
+ continue;
+
+ Report.Error (695, Location,
+ "`{0}' cannot implement both `{1}' and `{2}' because they may unify for some type parameter substitutions",
+ GetSignatureForError (), prev_iface.GetSignatureForError (), iface_type.GetSignatureForError ());
+ }
+ }
+
+ TypeBuilder.AddInterfaceImplementation (iface_type.GetMetaInfo ());
+
+ // Ensure the base is always setup
+ var compiled_iface = iface_type.MemberDefinition as Interface;
+ if (compiled_iface != null) {
+ // TODO: Need DefineBaseType only
+ compiled_iface.DefineType ();
+ }
+
+ if (iface_type.Interfaces != null) {
+ var base_ifaces = new List<TypeSpec> (iface_type.Interfaces);
+ for (int i = 0; i < base_ifaces.Count; ++i) {
+ var ii_iface_type = base_ifaces[i];
+ if (spec.AddInterface (ii_iface_type)) {
+ TypeBuilder.AddInterfaceImplementation (ii_iface_type.GetMetaInfo ());
+
+ if (ii_iface_type.Interfaces != null)
+ base_ifaces.AddRange (ii_iface_type.Interfaces);
+ }
+ }
+ }
+ }
+ }
+
+ if (Kind == MemberKind.Interface) {
+ spec.BaseType = TypeManager.object_type;
+ return true;
+ }
+
+ if (base_type != null) {
+ spec.BaseType = base_type;
+
+ // Set base type after type creation
+ TypeBuilder.SetParent (base_type.GetMetaInfo ());
+ }
+
+ return true;
+ }
+
+ public virtual void DefineConstants ()
+ {
+ if (constants != null) {
+ foreach (Const c in constants) {
+ c.DefineValue ();
+ }
+ }
+
+ if (instance_constructors != null) {
+ foreach (MethodCore m in instance_constructors) {
+ var p = m.ParameterInfo;
+ if (!p.IsEmpty && p[p.Count - 1].HasDefaultValue) {
+ var rc = new ResolveContext (m);
+ p.ResolveDefaultValues (rc);
+ }
+ }
+ }
+
+ if (methods != null) {
+ foreach (MethodCore m in methods) {
+ var p = m.ParameterInfo;
+ if (!p.IsEmpty && p[p.Count - 1].HasDefaultValue) {
+ var rc = new ResolveContext (m);
+ p.ResolveDefaultValues (rc);
+ }
+ }
+ }
+
+ if (indexers != null) {
+ foreach (Indexer i in indexers) {
+ var p = i.ParameterInfo;
+ if (p[p.Count - 1].HasDefaultValue) {
+ var rc = new ResolveContext (i);
+ p.ResolveDefaultValues (rc);
+ }
+ }
+ }
+
+ if (types != null) {
+ foreach (var t in types)
+ t.DefineConstants ();
+ }
+ }
+
+ //
+ // Defines the type in the appropriate ModuleBuilder or TypeBuilder.
+ //
+ public TypeBuilder CreateType ()
+ {
+ if (TypeBuilder != null)
+ return TypeBuilder;
+
+ if (error)
+ return null;
+
+ if (!CreateTypeBuilder ()) {
+ error = true;
+ return null;
+ }
+
+ if (partial_parts != null) {
+ foreach (TypeContainer part in partial_parts) {
+ part.spec = spec;
+ part.current_type = current_type;
+ part.TypeBuilder = TypeBuilder;
+ }
+ }
+
+ if (Types != null) {
+ foreach (TypeContainer tc in Types) {
+ if (tc.CreateType () == null) {
+ error = true;
+ return null;
+ }
+ }
+ }
+
+ return TypeBuilder;
+ }
public override TypeBuilder DefineType ()
{
type_defined = true;
- if (CreateType () == null) {
- error = true;
- return null;
- }
-
if (!DefineBaseTypes ()) {
error = true;
return null;
return TypeBuilder;
}
- public override void SetParameterInfo (ArrayList constraints_list)
+ public override void SetParameterInfo (List<Constraints> constraints_list)
{
base.SetParameterInfo (constraints_list);
- if (!is_generic || PartialContainer == this)
+ if (PartialContainer.CurrentTypeParameters == null || PartialContainer == this)
return;
- TypeParameter[] tc_names = PartialContainer.TypeParameters;
+ TypeParameter[] tc_names = PartialContainer.CurrentTypeParameters;
for (int i = 0; i < tc_names.Length; ++i) {
if (tc_names [i].Name != type_params [i].Name) {
Report.SymbolRelatedToPreviousError (PartialContainer.Location, "");
GetSignatureForError ());
break;
}
+
+ if (tc_names [i].Variance != type_params [i].Variance) {
+ Report.SymbolRelatedToPreviousError (PartialContainer.Location, "");
+ Report.Error (1067, Location, "Partial declarations of `{0}' must have the same type parameter variance modifiers",
+ GetSignatureForError ());
+ break;
+ }
}
}
+ //
+ // Replaces normal spec with predefined one when compiling corlib
+ // and this type container defines predefined type
+ //
+ public void SetPredefinedSpec (PredefinedTypeSpec spec)
+ {
+ this.spec = spec;
+ }
+
void UpdateTypeParameterConstraints (TypeContainer part)
{
- TypeParameter[] current_params = CurrentTypeParameters;
+ TypeParameter[] current_params = type_params;
for (int i = 0; i < current_params.Length; i++) {
- Constraints c = part.CurrentTypeParameters [i].Constraints;
- if (c == null)
- continue;
-
- if (current_params [i].UpdateConstraints (part, c))
+ if (current_params [i].AddPartialConstraints (part, part.type_params [i]))
continue;
Report.SymbolRelatedToPreviousError (Location, "");
}
}
- public bool ResolveType ()
+ public bool ResolveTypeParameters ()
{
- if (!DoResolveType ())
+ if (!DoResolveTypeParameters ())
return false;
+ if (types != null) {
+ foreach (var type in types)
+ if (!type.ResolveTypeParameters ())
+ return false;
+ }
+
if (compiler_generated != null) {
foreach (CompilerGeneratedClass c in compiler_generated)
- if (!c.ResolveType ())
+ if (!c.ResolveTypeParameters ())
return false;
}
return true;
}
- protected virtual bool DoResolveType ()
+ protected virtual bool DoResolveTypeParameters ()
{
- if (!IsGeneric)
+ if (CurrentTypeParameters == null)
return true;
if (PartialContainer != this)
throw new InternalErrorException ();
- TypeExpr current_type = null;
-
+ var base_context = new BaseContext (this);
foreach (TypeParameter type_param in CurrentTypeParameters) {
- if (!type_param.Resolve (this)) {
+ if (!type_param.ResolveConstraints (base_context)) {
error = true;
return false;
}
}
- if (partial_parts != null && is_generic) {
+ if (partial_parts != null) {
foreach (TypeContainer part in partial_parts)
UpdateTypeParameterConstraints (part);
}
- for (int i = 0; i < TypeParameters.Length; ++i) {
- //
- // FIXME: Same should be done for delegates
- // TODO: Quite ugly way how to propagate constraints to
- // nested types
- //
- if (nested_gen_params != null && i < nested_gen_params.Length) {
- TypeParameters [i].SetConstraints (nested_gen_params [i]);
- } else {
- if (!TypeParameters [i].DefineType (this)) {
- error = true;
- return false;
- }
- }
- }
-
- // TODO: Very strange, why not simple make generic type from
- // current type parameters
- current_type = new GenericTypeExpr (this, Location);
- current_type = current_type.ResolveAsTypeTerminal (this, false);
- if (current_type == null) {
- error = true;
- return false;
- }
-
- currentType = current_type.Type;
return true;
}
return false;
}
- if (Delegates != null) {
- foreach (Delegate d in Delegates)
- if (d.DefineType () == null)
- return false;
- }
-
return true;
}
- TypeContainer InTransit;
-
- protected bool CheckRecursiveDefinition (TypeContainer tc)
+ TypeSpec CheckRecursiveDefinition (TypeContainer tc)
{
- if (InTransit != null) {
- Report.SymbolRelatedToPreviousError (this);
- if (this is Interface)
- Report.Error (
- 529, tc.Location, "Inherited interface `{0}' causes a " +
- "cycle in the interface hierarchy of `{1}'",
- GetSignatureForError (), tc.GetSignatureForError ());
- else
- Report.Error (
- 146, tc.Location, "Circular base class dependency " +
- "involving `{0}' and `{1}'",
- tc.GetSignatureForError (), GetSignatureForError ());
- return false;
- }
+ if (InTransit != null)
+ return spec;
InTransit = tc;
- if (base_type != null && base_type.Type != null) {
- Type t = TypeManager.DropGenericTypeArguments (base_type.Type);
- TypeContainer ptc = TypeManager.LookupTypeContainer (t);
- if ((ptc != null) && !ptc.CheckRecursiveDefinition (this))
- return false;
+ if (base_type_expr != null) {
+ var ptc = base_type.MemberDefinition as TypeContainer;
+ if (ptc != null && ptc.CheckRecursiveDefinition (this) != null)
+ return base_type;
}
if (iface_exprs != null) {
foreach (TypeExpr iface in iface_exprs) {
- Type itype = TypeManager.DropGenericTypeArguments (iface.Type);
- TypeContainer ptc = TypeManager.LookupTypeContainer (itype);
- if ((ptc != null) && !ptc.CheckRecursiveDefinition (this))
- return false;
+ // the interface might not have been resolved, prevents a crash, see #442144
+ if (iface == null)
+ continue;
+ var ptc = iface.Type.MemberDefinition as Interface;
+ if (ptc != null && ptc.CheckRecursiveDefinition (this) != null)
+ return iface.Type;
}
}
- if (!IsTopLevel && !Parent.PartialContainer.CheckRecursiveDefinition (this))
- return false;
+ if (!IsTopLevel && Parent.PartialContainer.CheckRecursiveDefinition (this) != null)
+ return spec;
InTransit = null;
- return true;
+ return null;
}
/// <summary>
/// Populates our TypeBuilder with fields and methods
/// </summary>
- public override bool Define ()
+ public sealed override bool Define ()
{
if (members_defined)
return members_defined_ok;
members_defined_ok = DoDefineMembers ();
members_defined = true;
+ if (types != null) {
+ foreach (var nested in types)
+ nested.Define ();
+ }
+
return members_defined_ok;
}
{
if (iface_exprs != null) {
foreach (TypeExpr iface in iface_exprs) {
- ObsoleteAttribute oa = AttributeTester.GetObsoleteAttribute (iface.Type);
- if ((oa != null) && !IsInObsoleteScope)
- AttributeTester.Report_ObsoleteMessage (
- oa, iface.GetSignatureForError (), Location);
+ var iface_type = iface.Type;
+
+ // Ensure the base is always setup
+ var compiled_iface = iface_type.MemberDefinition as Interface;
+ if (compiled_iface != null)
+ compiled_iface.Define ();
+
+ if (Kind == MemberKind.Interface)
+ MemberCache.AddInterface (iface_type);
+
+ ObsoleteAttribute oa = iface_type.GetAttributeObsolete ();
+ if (oa != null && !IsObsolete)
+ AttributeTester.Report_ObsoleteMessage (oa, iface.GetSignatureForError (), Location, Report);
GenericTypeExpr ct = iface as GenericTypeExpr;
if (ct != null) {
// TODO: passing `this' is wrong, should be base type iface instead
TypeManager.CheckTypeVariance (ct.Type, Variance.Covariant, this);
- if (!ct.CheckConstraints (this))
+ ct.CheckConstraints (this);
+
+ if (ct.HasDynamicArguments ()) {
+ Report.Error (1966, iface.Location,
+ "`{0}': cannot implement a dynamic interface `{1}'",
+ GetSignatureForError (), iface.GetSignatureForError ());
return false;
+ }
}
}
}
- if (base_type != null) {
- ObsoleteAttribute obsolete_attr = AttributeTester.GetObsoleteAttribute (base_type.Type);
- if (obsolete_attr != null && !IsInObsoleteScope)
- AttributeTester.Report_ObsoleteMessage (obsolete_attr, base_type.GetSignatureForError (), Location);
+ if (base_type_expr != null) {
+ ObsoleteAttribute obsolete_attr = base_type.GetAttributeObsolete ();
+ if (obsolete_attr != null && !IsObsolete)
+ AttributeTester.Report_ObsoleteMessage (obsolete_attr, base_type.GetSignatureForError (), Location, Report);
- GenericTypeExpr ct = base_type as GenericTypeExpr;
- if ((ct != null) && !ct.CheckConstraints (this))
- return false;
-
- TypeContainer baseContainer = TypeManager.LookupTypeContainer(base_type.Type);
- if (baseContainer != null)
- baseContainer.Define();
-
- member_cache = new MemberCache (base_type.Type, this);
- } else if (Kind == Kind.Interface) {
- member_cache = new MemberCache (null, this);
- Type [] ifaces = TypeManager.GetInterfaces (TypeBuilder);
- for (int i = 0; i < ifaces.Length; ++i)
- member_cache.AddInterface (TypeManager.LookupMemberCache (ifaces [i]));
- } else {
- member_cache = new MemberCache (null, this);
+ var ct = base_type_expr as GenericTypeExpr;
+ if (ct != null)
+ ct.CheckConstraints (this);
}
- if (types != null)
- foreach (TypeContainer tc in types)
- member_cache.AddNestedType (tc);
+ if (base_type != null) {
+ var baseContainer = base_type.MemberDefinition as ClassOrStruct;
+ if (baseContainer != null) {
+ baseContainer.Define ();
- if (delegates != null)
- foreach (Delegate d in delegates)
- member_cache.AddNestedType (d);
+ //
+ // It can trigger define of this type (for generic types only)
+ //
+ if (HasMembersDefined)
+ return true;
+ }
+ }
- if (partial_parts != null) {
- foreach (TypeContainer part in partial_parts)
- part.member_cache = member_cache;
+ if (type_params != null) {
+ foreach (var tp in type_params) {
+ tp.CheckGenericConstraints ();
+ }
}
if (!IsTopLevel) {
- MemberInfo conflict_symbol = Parent.PartialContainer.FindBaseMemberWithSameName (Basename, false);
- if (conflict_symbol == null) {
+ MemberSpec candidate;
+ var conflict_symbol = MemberCache.FindBaseMember (this, out candidate);
+ if (conflict_symbol == null && candidate == null) {
if ((ModFlags & Modifiers.NEW) != 0)
- Report.Warning (109, 4, Location, "The member `{0}' does not hide an inherited member. The new keyword is not required", GetSignatureForError ());
+ Report.Warning (109, 4, Location, "The member `{0}' does not hide an inherited member. The new keyword is not required",
+ GetSignatureForError ());
} else {
if ((ModFlags & Modifiers.NEW) == 0) {
- Report.SymbolRelatedToPreviousError (conflict_symbol);
+ if (candidate == null)
+ candidate = conflict_symbol;
+
+ Report.SymbolRelatedToPreviousError (candidate);
Report.Warning (108, 2, Location, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
- GetSignatureForError (), TypeManager.GetFullNameSignature (conflict_symbol));
+ GetSignatureForError (), candidate.GetSignatureForError ());
}
}
}
DefineContainerMembers (constants);
DefineContainerMembers (fields);
- if (Kind == Kind.Struct || Kind == Kind.Class) {
+ if (Kind == MemberKind.Struct || Kind == MemberKind.Class) {
pending = PendingImplementation.GetPendingImplementations (this);
if (requires_delayed_unmanagedtype_check) {
requires_delayed_unmanagedtype_check = false;
foreach (FieldBase f in fields) {
if (f.MemberType != null && f.MemberType.IsPointer)
- TypeManager.VerifyUnManaged (f.MemberType, f.Location);
+ TypeManager.VerifyUnmanaged (Compiler, f.MemberType, f.Location);
}
}
}
DefineContainerMembers (ordered_explicit_member_list);
DefineContainerMembers (ordered_member_list);
- DefineContainerMembers (operators);
- DefineContainerMembers (delegates);
+ if (operators != null) {
+ DefineContainerMembers (operators);
+ CheckPairedOperators ();
+ }
ComputeIndexerName();
CheckEqualsAndGetHashCode();
- if (CurrentType != null) {
- GenericType = CurrentType;
- }
-
- //
- // FIXME: This hack is needed because member cache does not work
- // with generic types, we rely on runtime to inflate dynamic types.
- // TODO: This hack requires member cache refactoring to be removed
- //
- if (TypeManager.IsGenericType (TypeBuilder))
- member_cache = new MemberCache (this);
-
return true;
}
- protected virtual void DefineContainerMembers (MemberCoreArrayList mcal)
+ protected virtual void DefineContainerMembers (System.Collections.IList mcal) // IList<MemberCore>
{
- if (mcal != null)
- mcal.DefineContainerMembers ();
+ if (mcal != null) {
+ for (int i = 0; i < mcal.Count; ++i) {
+ MemberCore mc = (MemberCore) mcal[i];
+ try {
+ mc.Define ();
+ } catch (Exception e) {
+ throw new InternalErrorException (mc, e);
+ }
+ }
+ }
}
protected virtual void ComputeIndexerName ()
indexer_name = class_indexer_name;
}
- protected virtual void EmitIndexerName ()
+ void EmitIndexerName ()
{
if (!seen_normal_indexers)
return;
!pa.ResolveConstructor (Location, TypeManager.string_type))
return;
- CustomAttributeBuilder cb = new CustomAttributeBuilder (pa.Constructor, new string [] { IndexerName });
+ CustomAttributeBuilder cb = new CustomAttributeBuilder (pa.Constructor, new string [] { GetAttributeDefaultMember () });
TypeBuilder.SetCustomAttribute (cb);
}
}
}
- public MemberInfo FindBaseMemberWithSameName (string name, bool ignore_methods)
- {
- return BaseCache == null ? null : BaseCache.FindMemberWithSameName (name, ignore_methods, null);
- }
-
- /// <summary>
- /// This function is based by a delegate to the FindMembers routine
- /// </summary>
- static bool AlwaysAccept (MemberInfo m, object filterCriteria)
- {
- return true;
- }
-
- /// <summary>
- /// This filter is used by FindMembers, and we just keep
- /// a global for the filter to `AlwaysAccept'
- /// </summary>
- static MemberFilter accepting_filter;
-
-
- static TypeContainer ()
- {
- accepting_filter = new MemberFilter (AlwaysAccept);
- }
-
- public MethodInfo[] GetMethods ()
- {
- ArrayList members = new ArrayList ();
-
- Define ();
-
- if (methods != null) {
- int len = methods.Count;
- for (int i = 0; i < len; i++) {
- Method m = (Method) methods [i];
-
- members.Add (m.MethodBuilder);
- }
- }
-
- if (operators != null) {
- int len = operators.Count;
- for (int i = 0; i < len; i++) {
- Operator o = (Operator) operators [i];
-
- members.Add (o.MethodBuilder);
- }
- }
-
- if (properties != null) {
- int len = properties.Count;
- for (int i = 0; i < len; i++) {
- Property p = (Property) properties [i];
-
- if (p.GetBuilder != null)
- members.Add (p.GetBuilder);
- if (p.SetBuilder != null)
- members.Add (p.SetBuilder);
- }
- }
-
- if (indexers != null) {
- int len = indexers.Count;
- for (int i = 0; i < len; i++) {
- Indexer ix = (Indexer) indexers [i];
-
- if (ix.GetBuilder != null)
- members.Add (ix.GetBuilder);
- if (ix.SetBuilder != null)
- members.Add (ix.SetBuilder);
- }
- }
-
- if (events != null) {
- int len = events.Count;
- for (int i = 0; i < len; i++) {
- Event e = (Event) events [i];
-
- if (e.AddBuilder != null)
- members.Add (e.AddBuilder);
- if (e.RemoveBuilder != null)
- members.Add (e.RemoveBuilder);
- }
- }
-
- MethodInfo[] retMethods = new MethodInfo [members.Count];
- members.CopyTo (retMethods, 0);
- return retMethods;
- }
-
// Indicated whether container has StructLayout attribute set Explicit
public bool HasExplicitLayout {
get { return (caching_flags & Flags.HasExplicitLayout) != 0; }
set { caching_flags |= Flags.HasStructLayout; }
}
- //
- // Return the nested type with name @name. Ensures that the nested type
- // is defined if necessary. Do _not_ use this when you have a MemberCache handy.
- //
- public Type FindNestedType (string name)
- {
- if (PartialContainer != this)
- throw new InternalErrorException ("should not happen");
+ public MemberCache MemberCache {
+ get {
+ return spec.MemberCache;
+ }
+ }
- ArrayList [] lists = { types, delegates };
+ void CheckMemberUsage (List<MemberCore> al, string member_type)
+ {
+ if (al == null)
+ return;
- for (int j = 0; j < lists.Length; ++j) {
- ArrayList list = lists [j];
- if (list == null)
+ foreach (MemberCore mc in al) {
+ if ((mc.ModFlags & Modifiers.AccessibilityMask) != Modifiers.PRIVATE)
continue;
-
- int len = list.Count;
- for (int i = 0; i < len; ++i) {
- DeclSpace ds = (DeclSpace) list [i];
- if (ds.Basename == name) {
- return ds.DefineType ();
- }
+
+ if (!mc.IsUsed && (mc.caching_flags & Flags.Excluded) == 0) {
+ Report.Warning (169, 3, mc.Location, "The private {0} `{1}' is never used", member_type, mc.GetSignatureForError ());
}
}
-
- return null;
}
- private void FindMembers_NestedTypes (int modflags,
- BindingFlags bf, MemberFilter filter, object criteria,
- ref ArrayList members)
+ public virtual void VerifyMembers ()
{
- ArrayList [] lists = { types, delegates };
+ //
+ // Check for internal or private fields that were never assigned
+ //
+ if (Report.WarningLevel >= 3) {
+ if (RootContext.EnhancedWarnings) {
+ CheckMemberUsage (properties, "property");
+ CheckMemberUsage (methods, "method");
+ CheckMemberUsage (constants, "constant");
+ }
- for (int j = 0; j < lists.Length; ++j) {
- ArrayList list = lists [j];
- if (list == null)
- continue;
-
- int len = list.Count;
- for (int i = 0; i < len; i++) {
- DeclSpace ds = (DeclSpace) list [i];
-
- if ((ds.ModFlags & modflags) == 0)
- continue;
-
- TypeBuilder tb = ds.TypeBuilder;
- if (tb == null) {
- if (!(criteria is string) || ds.Basename.Equals (criteria))
- tb = ds.DefineType ();
- }
-
- if (tb != null && (filter (tb, criteria) == true)) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (tb);
- }
- }
- }
- }
-
- /// <summary>
- /// This method returns the members of this type just like Type.FindMembers would
- /// Only, we need to use this for types which are _being_ defined because MS'
- /// implementation can't take care of that.
- /// </summary>
- //
- // FIXME: return an empty static array instead of null, that cleans up
- // some code and is consistent with some coding conventions I just found
- // out existed ;-)
- //
- //
- // Notice that in various cases we check if our field is non-null,
- // something that would normally mean that there was a bug elsewhere.
- //
- // The problem happens while we are defining p-invoke methods, as those
- // will trigger a FindMembers, but this happens before things are defined
- //
- // Since the whole process is a no-op, it is fine to check for null here.
- //
- // TODO: This approach will be one day completely removed, it's already
- // used at few places only
- //
- //
- public override MemberList FindMembers (MemberTypes mt, BindingFlags bf,
- MemberFilter filter, object criteria)
- {
- ArrayList members = null;
-
- int modflags = 0;
- if ((bf & BindingFlags.Public) != 0)
- modflags |= Modifiers.PUBLIC | Modifiers.PROTECTED |
- Modifiers.INTERNAL;
- if ((bf & BindingFlags.NonPublic) != 0)
- modflags |= Modifiers.PRIVATE;
-
- int static_mask = 0, static_flags = 0;
- switch (bf & (BindingFlags.Static | BindingFlags.Instance)) {
- case BindingFlags.Static:
- static_mask = static_flags = Modifiers.STATIC;
- break;
-
- case BindingFlags.Instance:
- static_mask = Modifiers.STATIC;
- static_flags = 0;
- break;
-
- default:
- static_mask = static_flags = 0;
- break;
- }
-
- Timer.StartTimer (TimerType.TcFindMembers);
-
- if (filter == null)
- filter = accepting_filter;
-
- if ((mt & MemberTypes.Field) != 0) {
- if (fields != null) {
- int len = fields.Count;
- for (int i = 0; i < len; i++) {
- FieldBase f = (FieldBase) fields [i];
-
- if ((f.ModFlags & modflags) == 0)
- continue;
- if ((f.ModFlags & static_mask) != static_flags)
- continue;
-
- FieldBuilder fb = f.FieldBuilder;
- if (fb != null && filter (fb, criteria) == true) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (fb);
- }
- }
- }
-
- if (constants != null) {
- int len = constants.Count;
- for (int i = 0; i < len; i++) {
- Const con = (Const) constants [i];
-
- if ((con.ModFlags & modflags) == 0)
- continue;
- if ((con.ModFlags & static_mask) != static_flags)
- continue;
-
- FieldBuilder fb = con.FieldBuilder;
- if (fb == null) {
- if (con.Define ())
- fb = con.FieldBuilder;
- }
- if (fb != null && filter (fb, criteria) == true) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (fb);
- }
- }
- }
- }
-
- if ((mt & MemberTypes.Method) != 0) {
- if (methods != null) {
- int len = methods.Count;
- for (int i = 0; i < len; i++) {
- MethodOrOperator m = (MethodOrOperator) methods [i];
-
- if ((m.ModFlags & modflags) == 0)
- continue;
- if ((m.ModFlags & static_mask) != static_flags)
- continue;
-
- MethodBuilder mb = m.MethodBuilder;
-
- if (mb != null && filter (mb, criteria) == true) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (mb);
- }
- }
- }
-
- if (operators != null) {
- int len = operators.Count;
- for (int i = 0; i < len; i++) {
- Operator o = (Operator) operators [i];
-
- if ((o.ModFlags & modflags) == 0)
- continue;
- if ((o.ModFlags & static_mask) != static_flags)
- continue;
-
- MethodBuilder ob = o.MethodBuilder;
- if (ob != null && filter (ob, criteria) == true) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (ob);
- }
- }
- }
-
- if (events != null) {
- foreach (Event e in events) {
- if ((e.ModFlags & modflags) == 0)
- continue;
- if ((e.ModFlags & static_mask) != static_flags)
- continue;
-
- MethodBuilder b = e.AddBuilder;
- if (b != null && filter (b, criteria)) {
- if (members == null)
- members = new ArrayList (4);
-
- members.Add (b);
- }
-
- b = e.RemoveBuilder;
- if (b != null && filter (b, criteria)) {
- if (members == null)
- members = new ArrayList (4);
-
- members.Add (b);
- }
- }
- }
-
- if (properties != null) {
- int len = properties.Count;
- for (int i = 0; i < len; i++) {
- Property p = (Property) properties [i];
-
- if ((p.ModFlags & modflags) == 0)
- continue;
- if ((p.ModFlags & static_mask) != static_flags)
- continue;
-
- MethodBuilder b;
-
- b = p.GetBuilder;
- if (b != null && filter (b, criteria) == true) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (b);
- }
-
- b = p.SetBuilder;
- if (b != null && filter (b, criteria) == true) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (b);
- }
- }
- }
-
- if (indexers != null) {
- int len = indexers.Count;
- for (int i = 0; i < len; i++) {
- Indexer ix = (Indexer) indexers [i];
-
- if ((ix.ModFlags & modflags) == 0)
- continue;
- if ((ix.ModFlags & static_mask) != static_flags)
- continue;
-
- MethodBuilder b;
-
- b = ix.GetBuilder;
- if (b != null && filter (b, criteria) == true) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (b);
- }
-
- b = ix.SetBuilder;
- if (b != null && filter (b, criteria) == true) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (b);
- }
- }
- }
- }
-
- if ((mt & MemberTypes.Event) != 0) {
- if (events != null) {
- int len = events.Count;
- for (int i = 0; i < len; i++) {
- Event e = (Event) events [i];
-
- if ((e.ModFlags & modflags) == 0)
- continue;
- if ((e.ModFlags & static_mask) != static_flags)
- continue;
-
- MemberInfo eb = e.EventBuilder;
- if (eb != null && filter (eb, criteria) == true) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (e.EventBuilder);
- }
- }
- }
- }
-
- if ((mt & MemberTypes.Property) != 0){
- if (properties != null) {
- int len = properties.Count;
- for (int i = 0; i < len; i++) {
- Property p = (Property) properties [i];
-
- if ((p.ModFlags & modflags) == 0)
- continue;
- if ((p.ModFlags & static_mask) != static_flags)
- continue;
-
- MemberInfo pb = p.PropertyBuilder;
- if (pb != null && filter (pb, criteria) == true) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (p.PropertyBuilder);
- }
- }
- }
-
- if (indexers != null) {
- int len = indexers.Count;
- for (int i = 0; i < len; i++) {
- Indexer ix = (Indexer) indexers [i];
-
- if ((ix.ModFlags & modflags) == 0)
- continue;
- if ((ix.ModFlags & static_mask) != static_flags)
- continue;
-
- MemberInfo ib = ix.PropertyBuilder;
- if (ib != null && filter (ib, criteria) == true) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (ix.PropertyBuilder);
- }
- }
- }
- }
-
- if ((mt & MemberTypes.NestedType) != 0)
- FindMembers_NestedTypes (modflags, bf, filter, criteria, ref members);
-
- if ((mt & MemberTypes.Constructor) != 0){
- if (((bf & BindingFlags.Instance) != 0) && (instance_constructors != null)){
- int len = instance_constructors.Count;
- for (int i = 0; i < len; i++) {
- Constructor c = (Constructor) instance_constructors [i];
-
- ConstructorBuilder cb = c.ConstructorBuilder;
- if (cb != null && filter (cb, criteria) == true) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (cb);
- }
- }
- }
-
- if (((bf & BindingFlags.Static) != 0) && (default_static_constructor != null)){
- ConstructorBuilder cb =
- default_static_constructor.ConstructorBuilder;
-
- if (cb != null && filter (cb, criteria) == true) {
- if (members == null)
- members = new ArrayList ();
-
- members.Add (cb);
- }
- }
- }
-
- //
- // Lookup members in base if requested.
- //
- if ((bf & BindingFlags.DeclaredOnly) == 0) {
- if (TypeBuilder.BaseType != null) {
- MemberList list = FindMembers (TypeBuilder.BaseType, mt, bf, filter, criteria);
- if (list.Count > 0) {
- if (members == null)
- members = new ArrayList ();
-
- members.AddRange (list);
- }
- }
- }
-
- Timer.StopTimer (TimerType.TcFindMembers);
-
- if (members == null)
- return MemberList.Empty;
- else
- return new MemberList (members);
- }
-
- public override MemberCache MemberCache {
- get {
- return member_cache;
- }
- }
-
- public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
- MemberFilter filter, object criteria)
- {
- DeclSpace ds = TypeManager.LookupDeclSpace (t);
-
- if (ds != null)
- return ds.FindMembers (mt, bf, filter, criteria);
- else
- return new MemberList (t.FindMembers (mt, bf, filter, criteria));
- }
-
- /// <summary>
- /// Emits the values for the constants
- /// </summary>
- public void EmitConstants ()
- {
- if (constants != null)
- foreach (Const con in constants)
- con.Emit ();
- return;
- }
-
- static void CheckMemberUsage (MemberCoreArrayList al, string member_type)
- {
- if (al == null)
- return;
-
- foreach (MemberCore mc in al) {
- if ((mc.ModFlags & Modifiers.Accessibility) != Modifiers.PRIVATE)
- continue;
-
- if (!mc.IsUsed && (mc.caching_flags & Flags.Excluded) == 0) {
- Report.Warning (169, 3, mc.Location, "The private {0} `{1}' is never used", member_type, mc.GetSignatureForError ());
- }
- }
- }
-
- public virtual void VerifyMembers ()
- {
- //
- // Check for internal or private fields that were never assigned
- //
- if (Report.WarningLevel >= 3) {
- CheckMemberUsage (properties, "property");
- CheckMemberUsage (methods, "method");
- CheckMemberUsage (constants, "constant");
-
- if (fields != null){
- bool is_type_exposed = Kind == Kind.Struct || IsExposedFromAssembly ();
- foreach (FieldBase f in fields) {
- if ((f.ModFlags & Modifiers.Accessibility) != Modifiers.PRIVATE) {
- if (is_type_exposed)
- continue;
-
- f.SetMemberIsUsed ();
- }
+ if (fields != null){
+ bool is_type_exposed = Kind == MemberKind.Struct || IsExposedFromAssembly ();
+ foreach (FieldBase f in fields) {
+ if ((f.ModFlags & Modifiers.AccessibilityMask) != Modifiers.PRIVATE) {
+ if (is_type_exposed)
+ continue;
+
+ f.SetIsUsed ();
+ }
if (!f.IsUsed){
if ((f.caching_flags & Flags.IsAssigned) == 0)
Report.Warning (169, 3, f.Location, "The private field `{0}' is never used", f.GetSignatureForError ());
else {
-#if NET_2_0
- const int error_code = 414;
-#else
- const int error_code = 169;
-#endif
- Report.Warning (error_code, 3, f.Location, "The private field `{0}' is assigned but its value is never used",
+ Report.Warning (414, 3, f.Location, "The private field `{0}' is assigned but its value is never used",
f.GetSignatureForError ());
}
continue;
}
}
+ public override void Emit ()
+ {
+ if (all_tp_builders != null) {
+ int current_starts_index = CurrentTypeParametersStartIndex;
+ for (int i = 0; i < all_tp_builders.Length; i++) {
+ if (i < current_starts_index) {
+ TypeParameters[i].EmitConstraints (all_tp_builders [i]);
+ } else {
+ CurrentTypeParameters [i - current_starts_index].Emit ();
+ }
+ }
+ }
+
+ if ((ModFlags & Modifiers.COMPILER_GENERATED) != 0 && !Parent.IsCompilerGenerated)
+ PredefinedAttributes.Get.CompilerGenerated.EmitAttribute (TypeBuilder);
+
+ base.Emit ();
+ }
+
// TODO: move to ClassOrStruct
void EmitConstructors ()
{
if (instance_constructors == null)
return;
- if (TypeBuilder.IsSubclassOf (TypeManager.attribute_type) && RootContext.VerifyClsCompliance && IsClsComplianceRequired ()) {
+ if (spec.IsAttribute && IsExposedFromAssembly () && RootContext.VerifyClsCompliance && IsClsComplianceRequired ()) {
bool has_compliant_args = false;
foreach (Constructor c in instance_constructors) {
EmitConstructors ();
- // Can not continue if constants are broken
- EmitConstants ();
- if (Report.Errors > 0)
- return;
+ if (constants != null)
+ foreach (Const con in constants)
+ con.Emit ();
if (default_static_constructor != null)
default_static_constructor.Emit ();
foreach (FieldBase f in fields)
f.Emit ();
- if (delegates != null) {
- foreach (Delegate d in Delegates) {
- d.Emit ();
- }
+ if (types != null) {
+ foreach (TypeContainer t in types)
+ t.EmitType ();
}
if (pending != null)
- pending.VerifyPendingMethods ();
+ pending.VerifyPendingMethods (Report);
if (Report.Errors > 0)
return;
if (compiler_generated != null) {
for (int i = 0; i < compiler_generated.Count; ++i)
- ((CompilerGeneratedClass) compiler_generated [i]).EmitType ();
+ compiler_generated [i].EmitType ();
}
}
-
- public override void CloseType ()
+
+ public void CloseType ()
{
if ((caching_flags & Flags.CloseTypeCreated) != 0)
return;
+ // Close base type container first to avoid TypeLoadException
+ if (spec.BaseType != null) {
+ var btype = spec.BaseType.MemberDefinition as TypeContainer;
+ if (btype != null)
+ btype.CloseType ();
+ }
+
try {
caching_flags |= Flags.CloseTypeCreated;
TypeBuilder.CreateType ();
if (Types != null){
foreach (TypeContainer tc in Types)
- if (tc.Kind == Kind.Struct)
- tc.CloseType ();
-
- foreach (TypeContainer tc in Types)
- if (tc.Kind != Kind.Struct)
- tc.CloseType ();
+ tc.CloseType ();
}
- if (Delegates != null)
- foreach (Delegate d in Delegates)
- d.CloseType ();
-
if (compiler_generated != null)
foreach (CompilerGeneratedClass c in compiler_generated)
c.CloseType ();
- PartialContainer = null;
types = null;
- properties = null;
- delegates = null;
fields = null;
initialized_fields = null;
initialized_static_fields = null;
default_static_constructor = null;
type_bases = null;
OptAttributes = null;
- ifaces = null;
- base_cache = null;
- member_cache = null;
}
//
// Performs the validation on a Method's modifiers (properties have
// the same properties).
//
+ // TODO: Why is it not done at parse stage ?
+ //
public bool MethodModifiersValid (MemberCore mc)
{
- const int vao = (Modifiers.VIRTUAL | Modifiers.ABSTRACT | Modifiers.OVERRIDE);
- const int va = (Modifiers.VIRTUAL | Modifiers.ABSTRACT);
- const int nv = (Modifiers.NEW | Modifiers.VIRTUAL);
+ const Modifiers vao = (Modifiers.VIRTUAL | Modifiers.ABSTRACT | Modifiers.OVERRIDE);
+ const Modifiers nv = (Modifiers.NEW | Modifiers.VIRTUAL);
bool ok = true;
- int flags = mc.ModFlags;
+ var flags = mc.ModFlags;
//
// At most one of static, virtual or override
}
}
- if (Kind == Kind.Struct){
- if ((flags & va) != 0){
- Modifiers.Error_InvalidModifier (mc.Location, "virtual or abstract");
- ok = false;
- }
- }
-
if ((flags & Modifiers.OVERRIDE) != 0 && (flags & nv) != 0){
Report.Error (113, mc.Location, "A member `{0}' marked as override cannot be marked as new or virtual",
mc.GetSignatureForError ());
if (!base.VerifyClsCompliance ())
return false;
- VerifyClsName ();
-
- Type base_type = TypeBuilder.BaseType;
- if (base_type != null && !AttributeTester.IsClsCompliant (base_type)) {
- Report.Warning (3009, 1, Location, "`{0}': base type `{1}' is not CLS-compliant", GetSignatureForError (), TypeManager.CSharpName (base_type));
- }
- return true;
- }
-
-
- /// <summary>
- /// Checks whether container name is CLS Compliant
- /// </summary>
- void VerifyClsName ()
- {
- Hashtable base_members = base_cache == null ?
- new Hashtable () :
- base_cache.GetPublicMembers ();
- Hashtable this_members = new Hashtable ();
-
- foreach (DictionaryEntry entry in defined_names) {
- MemberCore mc = (MemberCore)entry.Value;
- if (!mc.IsClsComplianceRequired ())
- continue;
-
- string name = (string) entry.Key;
- string basename = name.Substring (name.LastIndexOf ('.') + 1);
+ // Check this name against other containers
+ NamespaceEntry.NS.VerifyClsCompliance ();
- string lcase = basename.ToLower (System.Globalization.CultureInfo.InvariantCulture);
- object found = base_members [lcase];
- if (found == null) {
- found = this_members [lcase];
- if (found == null) {
- this_members.Add (lcase, mc);
- continue;
- }
- }
-
- if ((mc.ModFlags & Modifiers.OVERRIDE) != 0)
- continue;
-
- if (found is MemberInfo) {
- if (basename == ((MemberInfo) found).Name)
- continue;
- Report.SymbolRelatedToPreviousError ((MemberInfo) found);
- } else {
- Report.SymbolRelatedToPreviousError ((MemberCore) found);
- }
+ // Check all container names for user classes
+ if (Kind != MemberKind.Delegate)
+ MemberCache.VerifyClsCompliance (Definition, Report);
- Report.Warning (3005, 1, mc.Location, "Identifier `{0}' differing only in case is not CLS-compliant", mc.GetSignatureForError ());
+ if (BaseType != null && !BaseType.IsCLSCompliant ()) {
+ Report.Warning (3009, 1, Location, "`{0}': base type `{1}' is not CLS-compliant",
+ GetSignatureForError (), BaseType.GetSignatureForError ());
}
+ return true;
}
-
/// <summary>
/// Performs checks for an explicit interface implementation. First it
/// checks whether the `interface_type' is a base inteface implementation.
/// </summary>
public bool VerifyImplements (InterfaceMemberBase mb)
{
+ var ifaces = spec.Interfaces;
if (ifaces != null) {
- foreach (Type t in ifaces){
- if (TypeManager.IsEqual (t, mb.InterfaceType))
+ foreach (TypeSpec t in ifaces){
+ if (t == mb.InterfaceType)
return true;
}
}
return false;
}
- public override Type LookupAnyGeneric (string typeName)
+ //
+ // Used for visiblity checks to tests whether this definition shares
+ // base type baseType, it does member-definition search
+ //
+ public bool IsBaseTypeDefinition (TypeSpec baseType)
{
- if (types != null) {
- foreach (TypeContainer tc in types) {
- if (!tc.IsGeneric)
- continue;
+ // RootContext check
+ if (TypeBuilder == null)
+ return false;
- int pos = tc.Basename.LastIndexOf ('`');
- if (pos == typeName.Length && String.Compare (typeName, 0, tc.Basename, 0, pos) == 0)
- return tc.TypeBuilder;
- }
- }
+ var type = spec;
+ do {
+ if (type.MemberDefinition == baseType.MemberDefinition)
+ return true;
+
+ type = type.BaseType;
+ } while (type != null);
+
+ return false;
+ }
- return base.LookupAnyGeneric (typeName);
+ public MemberCache LoadMembers (TypeSpec declaringType)
+ {
+ throw new NotSupportedException ("Not supported for compiled definition " + GetSignatureForError ());
}
public void Mark_HasEquals ()
}
//
- // IMemberContainer
+ // Generates xml doc comments (if any), and if required,
+ // handle warning report.
//
-
- string IMemberContainer.Name {
- get {
- return Name;
- }
- }
-
- Type IMemberContainer.Type {
- get {
- return TypeBuilder;
- }
- }
-
- bool IMemberContainer.IsInterface {
- get {
- return Kind == Kind.Interface;
- }
- }
-
- MemberList IMemberContainer.GetMembers (MemberTypes mt, BindingFlags bf)
- {
- BindingFlags new_bf = bf | BindingFlags.DeclaredOnly;
-
- if (GenericType != null)
- return TypeManager.FindMembers (GenericType, mt, new_bf,
- null, null);
- else
- return FindMembers (mt, new_bf, null, null);
- }
-
- //
- // Generates xml doc comments (if any), and if required,
- // handle warning report.
- //
- internal override void GenerateDocComment (DeclSpace ds)
- {
- DocUtil.GenerateTypeDocComment (this, ds);
+ internal override void GenerateDocComment (DeclSpace ds)
+ {
+ DocUtil.GenerateTypeDocComment (this, ds, Report);
}
public override string DocCommentHeader {
get { return "T:"; }
}
-
- public MemberCache BaseCache {
- get {
- if (base_cache != null)
- return base_cache;
- if (TypeBuilder.BaseType != null)
- base_cache = TypeManager.LookupMemberCache (TypeBuilder.BaseType);
- if (TypeBuilder.IsInterface)
- base_cache = TypeManager.LookupBaseInterfacesCache (TypeBuilder);
- return base_cache;
- }
- }
}
- public abstract class ClassOrStruct : TypeContainer {
- ListDictionary declarative_security;
+ public abstract class ClassOrStruct : TypeContainer
+ {
+ Dictionary<SecurityAction, PermissionSet> declarative_security;
public ClassOrStruct (NamespaceEntry ns, DeclSpace parent,
- MemberName name, Attributes attrs, Kind kind)
+ MemberName name, Attributes attrs, MemberKind kind)
: base (ns, parent, name, attrs, kind)
{
}
protected override bool AddToContainer (MemberCore symbol, string name)
{
- if (name == MemberName.Name) {
+ if (!(symbol is Constructor) && symbol.MemberName.Name == MemberName.Name) {
if (symbol is TypeParameter) {
Report.Error (694, symbol.Location,
"Type parameter `{0}' has same name as containing type, or method",
symbol.GetSignatureForError ());
return false;
}
-
+
InterfaceMemberBase imb = symbol as InterfaceMemberBase;
if (imb == null || !imb.IsExplicitImpl) {
Report.SymbolRelatedToPreviousError (this);
}
}
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
+ public override void ApplyAttributeBuilder (Attribute a, MethodSpec ctor, byte[] cdata, PredefinedAttributes pa)
{
if (a.IsValidSecurityAttribute ()) {
if (declarative_security == null)
- declarative_security = new ListDictionary ();
+ declarative_security = new Dictionary<SecurityAction, PermissionSet> ();
a.ExtractSecurityPermissionSet (declarative_security);
return;
PartialContainer.HasExplicitLayout = true;
}
- base.ApplyAttributeBuilder (a, cb, pa);
+ if (a.Type == pa.Dynamic) {
+ a.Error_MisusedDynamicAttribute ();
+ return;
+ }
+
+ base.ApplyAttributeBuilder (a, ctor, cdata, pa);
}
/// <summary>
// If the class is abstract, the default constructor is protected
// The default static constructor is private
- int mods;
+ Modifiers mods;
if (is_static) {
mods = Modifiers.STATIC | Modifiers.PRIVATE;
} else {
Location);
AddConstructor (c);
- c.Block = new ToplevelBlock (ParametersCompiled.EmptyReadOnlyParameters, Location);
+ c.Block = new ToplevelBlock (Compiler, ParametersCompiled.EmptyReadOnlyParameters, Location);
}
- public override bool Define ()
+ protected override bool DoDefineMembers ()
{
CheckProtectedModifier ();
- base.Define ();
+ base.DoDefineMembers ();
if (default_static_constructor != null)
default_static_constructor.Define ();
base.Emit ();
if (declarative_security != null) {
- foreach (DictionaryEntry de in declarative_security) {
- TypeBuilder.AddDeclarativeSecurity ((SecurityAction)de.Key, (PermissionSet)de.Value);
+ foreach (var de in declarative_security) {
+ TypeBuilder.AddDeclarativeSecurity (de.Key, de.Value);
}
}
}
- public override ExtensionMethodGroupExpr LookupExtensionMethod (Type extensionType, string name, Location loc)
+ public override IList<MethodSpec> LookupExtensionMethod (TypeSpec extensionType, string name, int arity, ref NamespaceEntry scope)
{
DeclSpace top_level = Parent;
if (top_level != null) {
while (top_level.Parent != null)
top_level = top_level.Parent;
- ArrayList candidates = NamespaceEntry.NS.LookupExtensionMethod (extensionType, this, name);
- if (candidates != null)
- return new ExtensionMethodGroupExpr (candidates, NamespaceEntry, extensionType, loc);
+ var candidates = NamespaceEntry.NS.LookupExtensionMethod (extensionType, this, name, arity);
+ if (candidates != null) {
+ scope = NamespaceEntry;
+ return candidates;
+ }
}
- return NamespaceEntry.LookupExtensionMethod (extensionType, name, loc);
+ return NamespaceEntry.LookupExtensionMethod (extensionType, name, arity, ref scope);
}
protected override TypeAttributes TypeAttr {
// TODO: should be sealed
public class Class : ClassOrStruct {
- const int AllowedModifiers =
+ const Modifiers AllowedModifiers =
Modifiers.NEW |
Modifiers.PUBLIC |
Modifiers.PROTECTED |
public const TypeAttributes StaticClassAttribute = TypeAttributes.Abstract | TypeAttributes.Sealed;
- public Class (NamespaceEntry ns, DeclSpace parent, MemberName name, int mod,
+ public Class (NamespaceEntry ns, DeclSpace parent, MemberName name, Modifiers mod,
Attributes attrs)
- : base (ns, parent, name, attrs, Kind.Class)
+ : base (ns, parent, name, attrs, MemberKind.Class)
{
- int accmods = Parent.Parent == null ? Modifiers.INTERNAL : Modifiers.PRIVATE;
- this.ModFlags = Modifiers.Check (AllowedModifiers, mod, accmods, Location);
+ var accmods = (Parent == null || Parent.Parent == null) ? Modifiers.INTERNAL : Modifiers.PRIVATE;
+ this.ModFlags = ModifiersExtensions.Check (AllowedModifiers, mod, accmods, Location, Report);
+ spec = new TypeSpec (Kind, null, this, null, ModFlags);
if (IsStatic && RootContext.Version == LanguageVersion.ISO_1) {
Report.FeatureIsNotAvailable (Location, "static classes");
}
}
- public override void AddBasesForPart (DeclSpace part, ArrayList bases)
+ public override void AddBasesForPart (DeclSpace part, List<FullNamedExpression> bases)
{
if (part.Name == "System.Object")
Report.Error (537, part.Location,
base.AddBasesForPart (part, bases);
}
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
+ public override void ApplyAttributeBuilder (Attribute a, MethodSpec ctor, byte[] cdata, PredefinedAttributes pa)
{
if (a.Type == pa.AttributeUsage) {
- if (!TypeManager.IsAttributeType (BaseType) &&
- TypeBuilder.FullName != "System.Attribute") {
+ if (!BaseType.IsAttribute && spec != TypeManager.attribute_type) {
Report.Error (641, a.Location, "Attribute `{0}' is only valid on classes derived from System.Attribute", a.GetSignatureForError ());
}
}
- if (a.Type == pa.Conditional && !TypeManager.IsAttributeType (BaseType)) {
+ if (a.Type == pa.Conditional && !BaseType.IsAttribute) {
Report.Error (1689, a.Location, "Attribute `System.Diagnostics.ConditionalAttribute' is only valid on methods or attribute classes");
return;
}
return;
}
- if (AttributeTester.IsAttributeExcluded (a.Type, Location))
+ if (a.Type.IsConditionallyExcluded (Location))
return;
- base.ApplyAttributeBuilder (a, cb, pa);
+ base.ApplyAttributeBuilder (a, ctor, cdata, pa);
}
public override AttributeTargets AttributeTargets {
}
}
- protected override void DefineContainerMembers (MemberCoreArrayList list)
+ protected override void DefineContainerMembers (System.Collections.IList list)
{
if (list == null)
return;
}
Method method = m as Method;
- if (method != null && method.Parameters.HasExtensionMethodType) {
+ if (method != null && method.ParameterInfo.HasExtensionMethodType) {
Report.Error (1105, m.Location, "`{0}': Extension methods must be declared static", m.GetSignatureForError ());
continue;
}
base.DefineContainerMembers (list);
}
- public override bool Define ()
+ protected override bool DoDefineMembers ()
{
if ((ModFlags & Modifiers.ABSTRACT) == Modifiers.ABSTRACT && (ModFlags & (Modifiers.SEALED | Modifiers.STATIC)) != 0) {
Report.Error (418, Location, "`{0}': an abstract class cannot be sealed or static", GetSignatureForError ());
Report.Error (441, Location, "`{0}': a class cannot be both static and sealed", GetSignatureForError ());
}
- return base.Define ();
- }
-
- protected override bool DoDefineMembers ()
- {
if (InstanceConstructors == null && !IsStatic)
DefineDefaultConstructor (false);
if ((ModFlags & Modifiers.METHOD_EXTENSION) != 0)
PredefinedAttributes.Get.Extension.EmitAttribute (TypeBuilder);
+
+ var trans_flags = TypeManager.HasDynamicTypeUsed (base_type);
+ if (trans_flags != null) {
+ var pa = PredefinedAttributes.Get.DynamicTransform;
+ if (pa.Constructor != null || pa.ResolveConstructor (Location, ArrayContainer.MakeType (TypeManager.bool_type))) {
+ TypeBuilder.SetCustomAttribute (new CustomAttributeBuilder (pa.Constructor, new object[] { trans_flags }));
+ }
+ }
}
protected override TypeExpr[] ResolveBaseTypes (out TypeExpr base_class)
TypeExpr[] ifaces = base.ResolveBaseTypes (out base_class);
if (base_class == null) {
- if (RootContext.StdLib)
- base_class = TypeManager.system_object_expr;
- else if (Name != "System.Object")
- base_class = TypeManager.system_object_expr;
+ if (spec != TypeManager.object_type)
+ base_type = TypeManager.object_type;
} else {
- if (Kind == Kind.Class && base_class is TypeParameterExpr){
- Report.Error (
- 689, base_class.Location,
- "Cannot derive from `{0}' because it is a type parameter",
- base_class.GetSignatureForError ());
- return ifaces;
- }
-
- if (IsGeneric && TypeManager.IsAttributeType (base_class.Type)) {
+ if (base_type.IsGenericParameter){
+ Report.Error (689, base_class.Location, "`{0}': Cannot derive from type parameter `{1}'",
+ GetSignatureForError (), base_type.GetSignatureForError ());
+ } else if (IsGeneric && base_type.IsAttribute) {
Report.Error (698, base_class.Location,
"A generic type cannot derive from `{0}' because it is an attribute class",
base_class.GetSignatureForError ());
- }
-
- if (base_class.IsSealed){
+ } else if (base_type.IsStatic) {
Report.SymbolRelatedToPreviousError (base_class.Type);
- if (base_class.Type.IsAbstract) {
- Report.Error (709, Location, "`{0}': Cannot derive from static class `{1}'",
- GetSignatureForError (), TypeManager.CSharpName (base_class.Type));
- } else {
- Report.Error (509, Location, "`{0}': cannot derive from sealed type `{1}'",
- GetSignatureForError (), TypeManager.CSharpName (base_class.Type));
- }
- return ifaces;
+ Report.Error (709, Location, "`{0}': Cannot derive from static class `{1}'",
+ GetSignatureForError (), base_type.GetSignatureForError ());
+ } else if (base_type.IsSealed) {
+ Report.SymbolRelatedToPreviousError (base_class.Type);
+ Report.Error (509, Location, "`{0}': cannot derive from sealed type `{1}'",
+ GetSignatureForError (), base_type.GetSignatureForError ());
+ } else if (PartialContainer.IsStatic && base_class.Type != TypeManager.object_type) {
+ Report.Error (713, Location, "Static class `{0}' cannot derive from type `{1}'. Static classes must derive from object",
+ GetSignatureForError (), base_class.GetSignatureForError ());
}
- if (!base_class.CanInheritFrom ()){
+ if (base_type is PredefinedTypeSpec && !(spec is PredefinedTypeSpec) &&
+ (base_type == TypeManager.enum_type || base_type == TypeManager.value_type || base_type == TypeManager.multicast_delegate_type ||
+ base_type == TypeManager.delegate_type || base_type == TypeManager.array_type)) {
Report.Error (644, Location, "`{0}' cannot derive from special class `{1}'",
- GetSignatureForError (), base_class.GetSignatureForError ());
- return ifaces;
- }
+ GetSignatureForError (), base_type.GetSignatureForError ());
- if (!IsAccessibleAs (base_class.Type)) {
- Report.SymbolRelatedToPreviousError (base_class.Type);
- Report.Error (60, Location, "Inconsistent accessibility: base class `{0}' is less accessible than class `{1}'",
- TypeManager.CSharpName (base_class.Type), GetSignatureForError ());
+ base_type = TypeManager.object_type;
}
- }
- if (PartialContainer.IsStaticClass) {
- if (base_class.Type != TypeManager.object_type) {
- Report.Error (713, Location, "Static class `{0}' cannot derive from type `{1}'. Static classes must derive from object",
- GetSignatureForError (), base_class.GetSignatureForError ());
- return ifaces;
+ if (!IsAccessibleAs (base_type)) {
+ Report.SymbolRelatedToPreviousError (base_type);
+ Report.Error (60, Location, "Inconsistent accessibility: base class `{0}' is less accessible than class `{1}'",
+ base_type.GetSignatureForError (), GetSignatureForError ());
}
+ }
- if (ifaces != null) {
- foreach (TypeExpr t in ifaces)
- Report.SymbolRelatedToPreviousError (t.Type);
- Report.Error (714, Location, "Static class `{0}' cannot implement interfaces", GetSignatureForError ());
- }
+ if (PartialContainer.IsStatic && ifaces != null) {
+ foreach (TypeExpr t in ifaces)
+ Report.SymbolRelatedToPreviousError (t.Type);
+ Report.Error (714, Location, "Static class `{0}' cannot implement interfaces", GetSignatureForError ());
}
return ifaces;
/// Search for at least one defined condition in ConditionalAttribute of attribute class
/// Valid only for attribute classes.
- public bool IsExcluded ()
+ public override string[] ConditionalConditions ()
{
- if ((caching_flags & Flags.Excluded_Undetected) == 0)
- return (caching_flags & Flags.Excluded) != 0;
+ if ((caching_flags & (Flags.Excluded_Undetected | Flags.Excluded)) == 0)
+ return null;
caching_flags &= ~Flags.Excluded_Undetected;
if (OptAttributes == null)
- return false;
+ return null;
Attribute[] attrs = OptAttributes.SearchMulti (PredefinedAttributes.Get.Conditional);
if (attrs == null)
- return false;
+ return null;
- foreach (Attribute a in attrs) {
- string condition = a.GetConditionalAttributeValue ();
- if (Location.CompilationUnit.IsConditionalDefined (condition))
- return false;
- }
+ string[] conditions = new string[attrs.Length];
+ for (int i = 0; i < conditions.Length; ++i)
+ conditions[i] = attrs[i].GetConditionalAttributeValue ();
caching_flags |= Flags.Excluded;
- return true;
- }
-
- bool IsStatic {
- get {
- return (ModFlags & Modifiers.STATIC) != 0;
- }
+ return conditions;
}
//
public sealed class Struct : ClassOrStruct {
bool is_unmanaged, has_unmanaged_check_done;
+ bool InTransit;
// <summary>
// Modifiers allowed in a struct declaration
// </summary>
- const int AllowedModifiers =
+ const Modifiers AllowedModifiers =
Modifiers.NEW |
Modifiers.PUBLIC |
Modifiers.PROTECTED |
Modifiers.PRIVATE;
public Struct (NamespaceEntry ns, DeclSpace parent, MemberName name,
- int mod, Attributes attrs)
- : base (ns, parent, name, attrs, Kind.Struct)
+ Modifiers mod, Attributes attrs)
+ : base (ns, parent, name, attrs, MemberKind.Struct)
{
- int accmods;
-
- if (parent.Parent == null)
- accmods = Modifiers.INTERNAL;
- else
- accmods = Modifiers.PRIVATE;
-
- this.ModFlags = Modifiers.Check (AllowedModifiers, mod, accmods, Location);
+ var accmods = parent.Parent == null ? Modifiers.INTERNAL : Modifiers.PRIVATE;
+ this.ModFlags = ModifiersExtensions.Check (AllowedModifiers, mod, accmods, Location, Report) | Modifiers.SEALED ;
+ spec = new TypeSpec (Kind, null, this, null, ModFlags);
+ }
- this.ModFlags |= Modifiers.SEALED;
+ public override AttributeTargets AttributeTargets {
+ get {
+ return AttributeTargets.Struct;
+ }
}
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
+ public override void ApplyAttributeBuilder (Attribute a, MethodSpec ctor, byte[] cdata, PredefinedAttributes pa)
{
- base.ApplyAttributeBuilder (a, cb, pa);
+ base.ApplyAttributeBuilder (a, ctor, cdata, pa);
//
// When struct constains fixed fixed and struct layout has explicitly
}
}
- public override AttributeTargets AttributeTargets {
- get {
- return AttributeTargets.Struct;
+ bool CheckStructCycles (Struct s)
+ {
+ if (s.Fields == null)
+ return true;
+
+ if (s.InTransit)
+ return false;
+
+ s.InTransit = true;
+ foreach (FieldBase field in s.Fields) {
+ TypeSpec ftype = field.Spec.MemberType;
+ if (!ftype.IsStruct)
+ continue;
+
+ if (ftype is PredefinedTypeSpec)
+ continue;
+
+ foreach (var targ in ftype.TypeArguments) {
+ if (!CheckFieldTypeCycle (targ)) {
+ Report.Error (523, field.Location,
+ "Struct member `{0}' of type `{1}' causes a cycle in the struct layout",
+ field.GetSignatureForError (), ftype.GetSignatureForError ());
+ break;
+ }
+ }
+
+ if ((field.IsStatic && (!ftype.IsGeneric || ftype == CurrentType)))
+ continue;
+
+ if (!CheckFieldTypeCycle (ftype)) {
+ Report.Error (523, field.Location,
+ "Struct member `{0}' of type `{1}' causes a cycle in the struct layout",
+ field.GetSignatureForError (), ftype.GetSignatureForError ());
+ break;
+ }
}
+
+ s.InTransit = false;
+ return true;
}
- public override bool IsUnmanagedType ()
+ bool CheckFieldTypeCycle (TypeSpec ts)
{
- if (fields == null)
+ var fts = ts.MemberDefinition as Struct;
+ if (fts == null)
return true;
- if (requires_delayed_unmanagedtype_check)
+ return CheckStructCycles (fts);
+ }
+
+ public override void Emit ()
+ {
+ CheckStructCycles (this);
+
+ base.Emit ();
+ }
+
+ public override bool IsUnmanagedType ()
+ {
+ if (fields == null)
return true;
if (has_unmanaged_check_done)
return is_unmanaged;
- has_unmanaged_check_done = true;
+ if (requires_delayed_unmanagedtype_check)
+ return true;
+
+ requires_delayed_unmanagedtype_check = true;
foreach (FieldBase f in fields) {
- if ((f.ModFlags & Modifiers.STATIC) != 0)
+ if (f.IsStatic)
continue;
// It can happen when recursive unmanaged types are defined
// struct S { S* s; }
- Type mt = f.MemberType;
+ TypeSpec mt = f.MemberType;
if (mt == null) {
- has_unmanaged_check_done = false;
- requires_delayed_unmanagedtype_check = true;
return true;
}
- // TODO: Remove when pointer types are under mcs control
while (mt.IsPointer)
mt = TypeManager.GetElementType (mt);
- if (TypeManager.IsEqual (mt, TypeBuilder))
+
+ if (mt.MemberDefinition == this) {
+ for (var p = Parent; p != null; p = p.Parent) {
+ if (p.Kind == MemberKind.Class) {
+ has_unmanaged_check_done = true;
+ return false;
+ }
+ }
continue;
+ }
if (TypeManager.IsUnmanagedType (mt))
continue;
+ has_unmanaged_check_done = true;
return false;
}
+ has_unmanaged_check_done = true;
is_unmanaged = true;
return true;
}
protected override TypeExpr[] ResolveBaseTypes (out TypeExpr base_class)
{
TypeExpr[] ifaces = base.ResolveBaseTypes (out base_class);
- //
- // If we are compiling our runtime,
- // and we are defining ValueType, then our
- // base is `System.Object'.
- //
- if (base_class == null) {
- if (!RootContext.StdLib && Name == "System.ValueType")
- base_class = TypeManager.system_object_expr;
- else
- base_class = TypeManager.system_valuetype_expr;
- }
-
+ base_type = TypeManager.value_type;
return ifaces;
}
- //
- // FIXME: Allow the user to specify a different set of attributes
- // in some cases (Sealed for example is mandatory for a class,
- // but what SequentialLayout can be changed
- //
protected override TypeAttributes TypeAttr {
get {
const TypeAttributes DefaultTypeAttributes =
/// <summary>
/// Interfaces
/// </summary>
- public sealed class Interface : TypeContainer, IMemberContainer {
+ public sealed class Interface : TypeContainer {
/// <summary>
/// Modifiers allowed in a class declaration
/// </summary>
- public const int AllowedModifiers =
+ public const Modifiers AllowedModifiers =
Modifiers.NEW |
Modifiers.PUBLIC |
Modifiers.PROTECTED |
Modifiers.UNSAFE |
Modifiers.PRIVATE;
- public Interface (NamespaceEntry ns, DeclSpace parent, MemberName name, int mod,
+ public Interface (NamespaceEntry ns, DeclSpace parent, MemberName name, Modifiers mod,
Attributes attrs)
- : base (ns, parent, name, attrs, Kind.Interface)
+ : base (ns, parent, name, attrs, MemberKind.Interface)
{
- int accmods;
-
- if (parent.Parent == null)
- accmods = Modifiers.INTERNAL;
- else
- accmods = Modifiers.PRIVATE;
+ var accmods = parent.Parent == null ? Modifiers.INTERNAL : Modifiers.PRIVATE;
- this.ModFlags = Modifiers.Check (AllowedModifiers, mod, accmods, name.Location);
+ this.ModFlags = ModifiersExtensions.Check (AllowedModifiers, mod, accmods, name.Location, Report);
+ spec = new TypeSpec (Kind, null, this, null, ModFlags);
}
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
+ public override void ApplyAttributeBuilder (Attribute a, MethodSpec ctor, byte[] cdata, PredefinedAttributes pa)
{
if (a.Type == pa.ComImport && !attributes.Contains (pa.Guid)) {
a.Error_MissingGuidAttribute ();
return;
}
- base.ApplyAttributeBuilder (a, cb, pa);
+ base.ApplyAttributeBuilder (a, ctor, cdata, pa);
}
if (!base.VerifyClsCompliance ())
return false;
- if (ifaces != null) {
- foreach (Type t in ifaces) {
- if (AttributeTester.IsClsCompliant (t))
+ if (iface_exprs != null) {
+ foreach (var iface in iface_exprs) {
+ if (iface.Type.IsCLSCompliant ())
continue;
- Report.SymbolRelatedToPreviousError (t);
+ Report.SymbolRelatedToPreviousError (iface.Type);
Report.Warning (3027, 1, Location, "`{0}' is not CLS-compliant because base interface `{1}' is not CLS-compliant",
- GetSignatureForError (), TypeManager.CSharpName (t));
+ GetSignatureForError (), TypeManager.CSharpName (iface.Type));
}
}
}
}
- // It is used as a base class for all property based members
- // This includes properties, indexers, and events
- public abstract class PropertyBasedMember : InterfaceMemberBase
- {
- public PropertyBasedMember (DeclSpace parent, GenericMethod generic,
- FullNamedExpression type, int mod, int allowed_mod,
- MemberName name, Attributes attrs)
- : base (parent, generic, type, mod, allowed_mod, name, attrs)
- {
- }
-
- protected override bool VerifyClsCompliance ()
- {
- if (!base.VerifyClsCompliance ())
- return false;
-
- if (!AttributeTester.IsClsCompliant (MemberType)) {
- Report.Warning (3003, 1, Location, "Type of `{0}' is not CLS-compliant",
- GetSignatureForError ());
- }
- return true;
- }
-
- }
-
-
- public abstract class MethodCore : InterfaceMemberBase
+ public abstract class InterfaceMemberBase : MemberBase
{
- public readonly ParametersCompiled Parameters;
- protected ToplevelBlock block;
-
- public MethodCore (DeclSpace parent, GenericMethod generic,
- FullNamedExpression type, int mod, int allowed_mod,
- MemberName name, Attributes attrs, ParametersCompiled parameters)
- : base (parent, generic, type, mod, allowed_mod, name, attrs)
- {
- Parameters = parameters;
- }
-
- //
- // Returns the System.Type array for the parameters of this method
- //
- public Type [] ParameterTypes {
- get {
- return Parameters.Types;
- }
- }
-
- public ParametersCompiled ParameterInfo {
- get {
- return Parameters;
- }
- }
-
- public ToplevelBlock Block {
- get {
- return block;
- }
-
- set {
- block = value;
- }
- }
-
- public CallingConventions CallingConventions {
- get {
- CallingConventions cc = Parameters.CallingConvention;
- if (!IsInterface)
- if ((ModFlags & Modifiers.STATIC) == 0)
- cc |= CallingConventions.HasThis;
-
- // FIXME: How is `ExplicitThis' used in C#?
-
- return cc;
- }
- }
-
- protected override bool CheckBase ()
- {
- // Check whether arguments were correct.
- if (!DefineParameters (Parameters))
- return false;
-
- return base.CheckBase ();
- }
-
//
- // Returns a string that represents the signature for this
- // member which should be used in XML documentation.
+ // Common modifiers allowed in a class declaration
//
- public override string GetDocCommentName (DeclSpace ds)
- {
- return DocUtil.GetMethodDocCommentName (this, Parameters, ds);
- }
+ protected const Modifiers AllowedModifiersClass =
+ Modifiers.NEW |
+ Modifiers.PUBLIC |
+ Modifiers.PROTECTED |
+ Modifiers.INTERNAL |
+ Modifiers.PRIVATE |
+ Modifiers.STATIC |
+ Modifiers.VIRTUAL |
+ Modifiers.SEALED |
+ Modifiers.OVERRIDE |
+ Modifiers.ABSTRACT |
+ Modifiers.UNSAFE |
+ Modifiers.EXTERN;
//
- // Raised (and passed an XmlElement that contains the comment)
- // when GenerateDocComment is writing documentation expectedly.
- //
- // FIXME: with a few effort, it could be done with XmlReader,
- // that means removal of DOM use.
+ // Common modifiers allowed in a struct declaration
//
- internal override void OnGenerateDocComment (XmlElement el)
- {
- DocUtil.OnMethodGenerateDocComment (this, el);
- }
+ protected const Modifiers AllowedModifiersStruct =
+ Modifiers.NEW |
+ Modifiers.PUBLIC |
+ Modifiers.PROTECTED |
+ Modifiers.INTERNAL |
+ Modifiers.PRIVATE |
+ Modifiers.STATIC |
+ Modifiers.OVERRIDE |
+ Modifiers.UNSAFE |
+ Modifiers.EXTERN;
//
- // Represents header string for documentation comment.
+ // Common modifiers allowed in a interface declaration
//
- public override string DocCommentHeader
- {
- get { return "M:"; }
- }
-
- public override bool EnableOverloadChecks (MemberCore overload)
- {
- if (overload is MethodCore || overload is AbstractPropertyEventMethod) {
- caching_flags |= Flags.MethodOverloadsExist;
- return true;
- }
-
- return base.EnableOverloadChecks (overload);
- }
-
- protected override bool VerifyClsCompliance ()
- {
- if (!base.VerifyClsCompliance ())
- return false;
-
- if (Parameters.HasArglist) {
- Report.Warning (3000, 1, Location, "Methods with variable arguments are not CLS-compliant");
- }
-
- if (!AttributeTester.IsClsCompliant (MemberType)) {
- Report.Warning (3002, 1, Location, "Return type of `{0}' is not CLS-compliant",
- GetSignatureForError ());
- }
-
- Parameters.VerifyClsCompliance ();
- return true;
- }
-
- }
+ protected const Modifiers AllowedModifiersInterface =
+ Modifiers.NEW |
+ Modifiers.UNSAFE;
- public abstract class InterfaceMemberBase : MemberBase {
//
// Whether this is an interface member.
//
//
// The interface type we are explicitly implementing
//
- public Type InterfaceType;
+ public TypeSpec InterfaceType;
//
// The method we're overriding if this is an override method.
//
- protected MethodInfo base_method;
+ protected MethodSpec base_method;
- readonly int explicit_mod_flags;
+ readonly Modifiers explicit_mod_flags;
public MethodAttributes flags;
public InterfaceMemberBase (DeclSpace parent, GenericMethod generic,
- FullNamedExpression type, int mod, int allowed_mod,
+ FullNamedExpression type, Modifiers mod, Modifiers allowed_mod,
MemberName name, Attributes attrs)
: base (parent, generic, type, mod, allowed_mod, Modifiers.PRIVATE,
name, attrs)
{
- IsInterface = parent.PartialContainer.Kind == Kind.Interface;
+ IsInterface = parent.PartialContainer.Kind == MemberKind.Interface;
IsExplicitImpl = (MemberName.Left != null);
explicit_mod_flags = mod;
}
if (IsExplicitImpl)
return true;
- // Is null for System.Object while compiling corlib and base interfaces
- if (Parent.PartialContainer.BaseCache == null) {
- if ((ModFlags & Modifiers.NEW) != 0) {
- Report.Warning (109, 4, Location, "The member `{0}' does not hide an inherited member. The new keyword is not required", GetSignatureForError ());
- }
+ // For System.Object only
+ if (Parent.BaseType == null)
return true;
- }
-
- Type base_ret_type = null;
- base_method = FindOutBaseMethod (ref base_ret_type);
- // method is override
- if (base_method != null) {
- if (!CheckMethodAgainstBase (base_ret_type))
- return false;
+ MemberSpec candidate;
+ var base_member = FindBaseMember (out candidate);
- if ((ModFlags & Modifiers.OVERRIDE) != 0) {
- ObsoleteAttribute oa = AttributeTester.GetMethodObsoleteAttribute (base_method);
- if (oa != null) {
- if (OptAttributes == null || !OptAttributes.Contains (PredefinedAttributes.Get.Obsolete)) {
- Report.SymbolRelatedToPreviousError (base_method);
- Report.Warning (672, 1, Location, "Member `{0}' overrides obsolete member `{1}'. Add the Obsolete attribute to `{0}'",
- GetSignatureForError (), TypeManager.CSharpSignature (base_method));
+ if ((ModFlags & Modifiers.OVERRIDE) != 0) {
+ if (base_member == null) {
+ if (candidate == null) {
+ if (this is Method && ((Method)this).ParameterInfo.IsEmpty && MemberName.Name == Destructor.MetadataName && MemberName.Arity == 0) {
+ Report.Error (249, Location, "Do not override `{0}'. Use destructor syntax instead",
+ "object.Finalize()");
+ } else {
+ Report.Error (115, Location, "`{0}' is marked as an override but no suitable {1} found to override",
+ GetSignatureForError (), SimpleName.GetMemberType (this));
}
} else {
- if (OptAttributes != null && OptAttributes.Contains (PredefinedAttributes.Get.Obsolete)) {
- Report.SymbolRelatedToPreviousError (base_method);
- Report.Warning (809, 1, Location, "Obsolete member `{0}' overrides non-obsolete member `{1}'",
- GetSignatureForError (), TypeManager.CSharpSignature (base_method));
- }
+ Report.SymbolRelatedToPreviousError (candidate);
+ if (this is Event)
+ Report.Error (72, Location, "`{0}': cannot override because `{1}' is not an event",
+ GetSignatureForError (), TypeManager.GetFullNameSignature (candidate));
+ else if (this is PropertyBase)
+ Report.Error (544, Location, "`{0}': cannot override because `{1}' is not a property",
+ GetSignatureForError (), TypeManager.GetFullNameSignature (candidate));
+ else
+ Report.Error (505, Location, "`{0}': cannot override because `{1}' is not a method",
+ GetSignatureForError (), TypeManager.GetFullNameSignature (candidate));
}
+
+ return false;
}
- return true;
- }
- MemberInfo conflict_symbol = Parent.PartialContainer.FindBaseMemberWithSameName (Name, !((this is Event) || (this is Property)));
- if ((ModFlags & Modifiers.OVERRIDE) != 0) {
- if (conflict_symbol != null) {
- Report.SymbolRelatedToPreviousError (conflict_symbol);
- if (this is Event)
- Report.Error (72, Location, "`{0}': cannot override because `{1}' is not an event", GetSignatureForError (), TypeManager.GetFullNameSignature (conflict_symbol));
- else if (this is PropertyBase)
- Report.Error (544, Location, "`{0}': cannot override because `{1}' is not a property", GetSignatureForError (), TypeManager.GetFullNameSignature (conflict_symbol));
- else
- Report.Error (505, Location, "`{0}': cannot override because `{1}' is not a method", GetSignatureForError (), TypeManager.GetFullNameSignature (conflict_symbol));
+ if (!CheckOverrideAgainstBase (base_member))
+ return false;
+
+ ObsoleteAttribute oa = base_member.GetAttributeObsolete ();
+ if (oa != null) {
+ if (OptAttributes == null || !OptAttributes.Contains (PredefinedAttributes.Get.Obsolete)) {
+ Report.SymbolRelatedToPreviousError (base_member);
+ Report.Warning (672, 1, Location, "Member `{0}' overrides obsolete member `{1}'. Add the Obsolete attribute to `{0}'",
+ GetSignatureForError (), TypeManager.GetFullNameSignature (base_member));
+ }
} else {
- Report.Error (115, Location, "`{0}' is marked as an override but no suitable {1} found to override",
- GetSignatureForError (), SimpleName.GetMemberType (this));
+ if (OptAttributes != null && OptAttributes.Contains (PredefinedAttributes.Get.Obsolete)) {
+ Report.SymbolRelatedToPreviousError (base_member);
+ Report.Warning (809, 1, Location, "Obsolete member `{0}' overrides non-obsolete member `{1}'",
+ GetSignatureForError (), TypeManager.GetFullNameSignature (base_member));
+ }
}
- return false;
- }
- if (conflict_symbol == null) {
- if ((ModFlags & Modifiers.NEW) != 0) {
- Report.Warning (109, 4, Location, "The member `{0}' does not hide an inherited member. The new keyword is not required", GetSignatureForError ());
- }
+ base_method = base_member as MethodSpec;
return true;
}
- if ((ModFlags & Modifiers.NEW) == 0) {
- if (this is MethodOrOperator && conflict_symbol.MemberType == MemberTypes.Method)
- return true;
+ if (base_member == null && candidate != null && (!(candidate is IParametersMember) || !(this is IParametersMember)))
+ base_member = candidate;
+
+ if (base_member == null) {
+ if ((ModFlags & Modifiers.NEW) != 0) {
+ if (base_member == null) {
+ Report.Warning (109, 4, Location, "The member `{0}' does not hide an inherited member. The new keyword is not required",
+ GetSignatureForError ());
+ }
+ }
+ } else {
+ if ((ModFlags & Modifiers.NEW) == 0) {
+ ModFlags |= Modifiers.NEW;
+ Report.SymbolRelatedToPreviousError (base_member);
+ if (!IsInterface && (base_member.Modifiers & (Modifiers.ABSTRACT | Modifiers.VIRTUAL | Modifiers.OVERRIDE)) != 0) {
+ Report.Warning (114, 2, Location, "`{0}' hides inherited member `{1}'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword",
+ GetSignatureForError (), base_member.GetSignatureForError ());
+ } else {
+ Report.Warning (108, 2, Location, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
+ GetSignatureForError (), base_member.GetSignatureForError ());
+ }
+ }
- Report.SymbolRelatedToPreviousError (conflict_symbol);
- Report.Warning (108, 2, Location, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
- GetSignatureForError (), TypeManager.GetFullNameSignature (conflict_symbol));
+ if (!IsInterface && base_member.IsAbstract && candidate == null) {
+ Report.SymbolRelatedToPreviousError (base_member);
+ Report.Error (533, Location, "`{0}' hides inherited abstract member `{1}'",
+ GetSignatureForError (), base_member.GetSignatureForError ());
+ }
}
return true;
protected virtual bool CheckForDuplications ()
{
- return Parent.MemberCache.CheckExistingMembersOverloads (
- this, GetFullName (MemberName), ParametersCompiled.EmptyReadOnlyParameters);
+ return Parent.MemberCache.CheckExistingMembersOverloads (this, ParametersCompiled.EmptyReadOnlyParameters);
}
//
// Performs various checks on the MethodInfo `mb' regarding the modifier flags
// that have been defined.
//
- // `name' is the user visible name for reporting errors (this is used to
- // provide the right name regarding method names and properties)
- //
- bool CheckMethodAgainstBase (Type base_method_type)
+ protected virtual bool CheckOverrideAgainstBase (MemberSpec base_member)
{
bool ok = true;
- if ((ModFlags & Modifiers.OVERRIDE) != 0){
- if (!(base_method.IsAbstract || base_method.IsVirtual)){
- Report.SymbolRelatedToPreviousError (base_method);
- Report.Error (506, Location,
- "`{0}': cannot override inherited member `{1}' because it is not marked virtual, abstract or override",
- GetSignatureForError (), TypeManager.CSharpSignature (base_method));
- ok = false;
- }
-
- // Now we check that the overriden method is not final
-
- if (base_method.IsFinal) {
- Report.SymbolRelatedToPreviousError (base_method);
- Report.Error (239, Location, "`{0}': cannot override inherited member `{1}' because it is sealed",
- GetSignatureForError (), TypeManager.CSharpSignature (base_method));
- ok = false;
- }
- //
- // Check that the permissions are not being changed
- //
- MethodAttributes thisp = flags & MethodAttributes.MemberAccessMask;
- MethodAttributes base_classp = base_method.Attributes & MethodAttributes.MemberAccessMask;
-
- if (!CheckAccessModifiers (thisp, base_classp, base_method)) {
- Error_CannotChangeAccessModifiers (Location, base_method, base_classp, null);
- ok = false;
- }
+ if ((base_member.Modifiers & (Modifiers.ABSTRACT | Modifiers.VIRTUAL | Modifiers.OVERRIDE)) == 0) {
+ Report.SymbolRelatedToPreviousError (base_member);
+ Report.Error (506, Location,
+ "`{0}': cannot override inherited member `{1}' because it is not marked virtual, abstract or override",
+ GetSignatureForError (), TypeManager.CSharpSignature (base_member));
+ ok = false;
+ }
- if (!TypeManager.IsEqual (MemberType, TypeManager.TypeToCoreType (base_method_type))) {
- Report.SymbolRelatedToPreviousError (base_method);
- if (this is PropertyBasedMember) {
- Report.Error (1715, Location, "`{0}': type must be `{1}' to match overridden member `{2}'",
- GetSignatureForError (), TypeManager.CSharpName (base_method_type), TypeManager.CSharpSignature (base_method));
- }
- else {
- Report.Error (508, Location, "`{0}': return type must be `{1}' to match overridden member `{2}'",
- GetSignatureForError (), TypeManager.CSharpName (base_method_type), TypeManager.CSharpSignature (base_method));
- }
- ok = false;
- }
+ // Now we check that the overriden method is not final
+ if ((base_member.Modifiers & Modifiers.SEALED) != 0) {
+ Report.SymbolRelatedToPreviousError (base_member);
+ Report.Error (239, Location, "`{0}': cannot override inherited member `{1}' because it is sealed",
+ GetSignatureForError (), TypeManager.CSharpSignature (base_member));
+ ok = false;
}
- if ((ModFlags & Modifiers.NEW) == 0) {
- if ((ModFlags & Modifiers.OVERRIDE) == 0) {
- ModFlags |= Modifiers.NEW;
- Report.SymbolRelatedToPreviousError (base_method);
- if (!IsInterface && (base_method.IsVirtual || base_method.IsAbstract)) {
- Report.Warning (114, 2, Location, "`{0}' hides inherited member `{1}'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword",
- GetSignatureForError (), TypeManager.CSharpSignature (base_method));
- if (base_method.IsAbstract){
- Report.Error (533, Location, "`{0}' hides inherited abstract member `{1}'",
- GetSignatureForError (), TypeManager.CSharpSignature (base_method));
- ok = false;
- }
- } else {
- Report.Warning (108, 2, Location, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
- GetSignatureForError (), TypeManager.CSharpSignature (base_method));
- }
- }
- } else {
- if (base_method.IsAbstract && !IsInterface) {
- Report.SymbolRelatedToPreviousError (base_method);
- Report.Error (533, Location, "`{0}' hides inherited abstract member `{1}'",
- GetSignatureForError (), TypeManager.CSharpSignature (base_method));
- return ok = false;
+ var base_member_type = ((IInterfaceMemberSpec) base_member).MemberType;
+ if (!TypeSpecComparer.Override.IsEqual (MemberType, base_member_type)) {
+ Report.SymbolRelatedToPreviousError (base_member);
+ if (this is PropertyBasedMember) {
+ Report.Error (1715, Location, "`{0}': type must be `{1}' to match overridden member `{2}'",
+ GetSignatureForError (), TypeManager.CSharpName (base_member_type), TypeManager.CSharpSignature (base_member));
+ } else {
+ Report.Error (508, Location, "`{0}': return type must be `{1}' to match overridden member `{2}'",
+ GetSignatureForError (), TypeManager.CSharpName (base_member_type), TypeManager.CSharpSignature (base_member));
}
+ ok = false;
}
return ok;
}
-
- protected bool CheckAccessModifiers (MethodAttributes thisp, MethodAttributes base_classp, MethodInfo base_method)
+
+ protected static bool CheckAccessModifiers (MemberCore this_member, MemberSpec base_member)
{
- if ((base_classp & MethodAttributes.FamORAssem) == MethodAttributes.FamORAssem){
+ var thisp = this_member.ModFlags & Modifiers.AccessibilityMask;
+ var base_classp = base_member.Modifiers & Modifiers.AccessibilityMask;
+
+ if ((base_classp & (Modifiers.PROTECTED | Modifiers.INTERNAL)) == (Modifiers.PROTECTED | Modifiers.INTERNAL)) {
//
// when overriding protected internal, the method can be declared
// protected internal only within the same assembly or assembly
// which has InternalsVisibleTo
//
- if ((thisp & MethodAttributes.FamORAssem) == MethodAttributes.FamORAssem){
- return TypeManager.IsThisOrFriendAssembly (base_method.DeclaringType.Assembly);
- } else if ((thisp & MethodAttributes.Family) != MethodAttributes.Family) {
+ if ((thisp & (Modifiers.PROTECTED | Modifiers.INTERNAL)) == (Modifiers.PROTECTED | Modifiers.INTERNAL)) {
+ return TypeManager.IsThisOrFriendAssembly (this_member.Assembly, base_member.Assembly);
+ }
+ if ((thisp & Modifiers.PROTECTED) != Modifiers.PROTECTED) {
//
// if it's not "protected internal", it must be "protected"
//
return false;
- } else if (Parent.TypeBuilder.Assembly == base_method.DeclaringType.Assembly) {
+ }
+ if (this_member.Parent.PartialContainer.Module.Assembly == base_member.Assembly) {
//
// protected within the same assembly - an error
//
return false;
- } else if ((thisp & ~(MethodAttributes.Family | MethodAttributes.FamORAssem)) !=
- (base_classp & ~(MethodAttributes.Family | MethodAttributes.FamORAssem))) {
+ }
+ if ((thisp & ~(Modifiers.PROTECTED | Modifiers.INTERNAL)) !=
+ (base_classp & ~(Modifiers.PROTECTED | Modifiers.INTERNAL))) {
//
// protected ok, but other attributes differ - report an error
//
return false;
}
return true;
- } else {
- return (thisp == base_classp);
}
+
+ return thisp == base_classp;
}
public override bool Define ()
} else {
Parent.PartialContainer.MethodModifiersValid (this);
- flags = Modifiers.MethodAttr (ModFlags);
+ flags = ModifiersExtensions.MethodAttr (ModFlags);
}
if (IsExplicitImpl) {
- TypeExpr iface_texpr = MemberName.Left.GetTypeExpression ().ResolveAsTypeTerminal (this, false);
+ TypeExpr iface_texpr = MemberName.Left.GetTypeExpression ().ResolveAsTypeTerminal (Parent, false);
if (iface_texpr == null)
return false;
Parent.PartialContainer.VerifyImplements (this);
}
- Modifiers.Check (Modifiers.AllowedExplicitImplFlags, explicit_mod_flags, 0, Location);
+ ModifiersExtensions.Check (Modifiers.AllowedExplicitImplFlags, explicit_mod_flags, 0, Location, Report);
}
return base.Define ();
Parameter p = parameters [i];
if (p.HasDefaultValue && (IsExplicitImpl || this is Operator || (this is Indexer && parameters.Count == 1)))
- p.Warning_UselessOptionalParameter ();
+ p.Warning_UselessOptionalParameter (Report);
if (p.CheckAccessibility (this))
continue;
- Type t = parameters.Types [i];
+ TypeSpec t = parameters.Types [i];
Report.SymbolRelatedToPreviousError (t);
if (this is Indexer)
Report.Error (55, Location,
return IsExplicitImpl;
}
- protected void Error_CannotChangeAccessModifiers (Location loc, MemberInfo base_method, MethodAttributes ma, string suffix)
+ protected void Error_CannotChangeAccessModifiers (MemberCore member, MemberSpec base_member)
{
- Report.SymbolRelatedToPreviousError (base_method);
- string base_name = TypeManager.GetFullNameSignature (base_method);
- string this_name = GetSignatureForError ();
- if (suffix != null) {
- base_name += suffix;
- this_name += suffix;
- }
-
- Report.Error (507, loc, "`{0}': cannot change access modifiers when overriding `{1}' inherited member `{2}'",
- this_name, Modifiers.GetDescription (ma), base_name);
+ Report.SymbolRelatedToPreviousError (base_member);
+ Report.Error (507, member.Location,
+ "`{0}': cannot change access modifiers when overriding `{1}' inherited member `{2}'",
+ member.GetSignatureForError (),
+ ModifiersExtensions.AccessibilityName (base_member.Modifiers),
+ base_member.GetSignatureForError ());
}
- protected static string Error722 {
- get {
- return "`{0}': static types cannot be used as return types";
- }
+ protected void Error_StaticReturnType ()
+ {
+ Report.Error (722, Location,
+ "`{0}': static types cannot be used as return types",
+ MemberType.GetSignatureForError ());
}
/// <summary>
/// Gets base method and its return type
/// </summary>
- protected abstract MethodInfo FindOutBaseMethod (ref Type base_ret_type);
+ protected virtual MemberSpec FindBaseMember (out MemberSpec bestCandidate)
+ {
+ return MemberCache.FindBaseMember (this, out bestCandidate);
+ }
//
// The "short" name of this property / indexer / event. This is the
// name without the explicit interface.
//
- public string ShortName
- {
+ public string ShortName {
get { return MemberName.Name; }
set { SetMemberName (new MemberName (MemberName.Left, value, Location)); }
}
// Returns full metadata method name
//
public string GetFullName (MemberName name)
+ {
+ return GetFullName (name.Name);
+ }
+
+ public string GetFullName (string name)
{
if (!IsExplicitImpl)
- return name.Name;
+ return name;
//
// When dealing with explicit members a full interface type
// replacing predefined names which saves some space and name
// is still unique
//
- return TypeManager.CSharpName (InterfaceType) + "." + name.Name;
+ return TypeManager.CSharpName (InterfaceType) + "." + name;
}
protected override bool VerifyClsCompliance ()
{
if (!base.VerifyClsCompliance ()) {
- if (IsInterface && HasClsCompliantAttribute && Parent.IsClsComplianceRequired ()) {
- Report.Warning (3010, 1, Location, "`{0}': CLS-compliant interfaces must have only CLS-compliant members", GetSignatureForError ());
- }
-
- if ((ModFlags & Modifiers.ABSTRACT) != 0 && Parent.TypeBuilder.IsClass && IsExposedFromAssembly () && Parent.IsClsComplianceRequired ()) {
- Report.Warning (3011, 1, Location, "`{0}': only CLS-compliant members can be abstract", GetSignatureForError ());
- }
return false;
}
}
- public abstract class MethodOrOperator : MethodCore, IMethodData
+ public abstract class MemberBase : MemberCore
{
- public MethodBuilder MethodBuilder;
- ReturnParameter return_attributes;
- ListDictionary declarative_security;
- protected MethodData MethodData;
-
- static string[] attribute_targets = new string [] { "method", "return" };
-
- protected MethodOrOperator (DeclSpace parent, GenericMethod generic, FullNamedExpression type, int mod,
- int allowed_mod, MemberName name,
- Attributes attrs, ParametersCompiled parameters)
- : base (parent, generic, type, mod, allowed_mod, name,
- attrs, parameters)
- {
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.Target == AttributeTargets.ReturnValue) {
- if (return_attributes == null)
- return_attributes = new ReturnParameter (MethodBuilder, Location);
+ protected FullNamedExpression type_expr;
+ protected TypeSpec member_type;
- return_attributes.ApplyAttributeBuilder (a, cb, pa);
- return;
- }
+ public readonly DeclSpace ds;
+ public readonly GenericMethod GenericMethod;
- if (a.IsInternalMethodImplAttribute) {
- is_external_implementation = true;
- }
+ protected MemberBase (DeclSpace parent, GenericMethod generic,
+ FullNamedExpression type, Modifiers mod, Modifiers allowed_mod, Modifiers def_mod,
+ MemberName name, Attributes attrs)
+ : base (parent, name, attrs)
+ {
+ this.ds = generic != null ? generic : (DeclSpace) parent;
+ this.type_expr = type;
+ ModFlags = ModifiersExtensions.Check (allowed_mod, mod, def_mod, Location, Report);
+ GenericMethod = generic;
+ if (GenericMethod != null)
+ GenericMethod.ModFlags = ModFlags;
+ }
- if (a.Type == pa.DllImport) {
- const int extern_static = Modifiers.EXTERN | Modifiers.STATIC;
- if ((ModFlags & extern_static) != extern_static) {
- Report.Error (601, a.Location, "The DllImport attribute must be specified on a method marked `static' and `extern'");
- }
- is_external_implementation = true;
- }
+ #region Properties
- if (a.IsValidSecurityAttribute ()) {
- if (declarative_security == null)
- declarative_security = new ListDictionary ();
- a.ExtractSecurityPermissionSet (declarative_security);
- return;
+ public TypeSpec MemberType {
+ get {
+ return member_type;
}
-
- if (MethodBuilder != null)
- MethodBuilder.SetCustomAttribute (cb);
}
- public override AttributeTargets AttributeTargets {
+ public FullNamedExpression TypeExpression {
get {
- return AttributeTargets.Method;
+ return type_expr;
}
}
- protected override bool CheckForDuplications ()
- {
- string name = GetFullName (MemberName);
- if (MemberName.IsGeneric)
- name = MemberName.MakeName (name, MemberName.TypeArguments);
-
- return Parent.MemberCache.CheckExistingMembersOverloads (this, name, Parameters);
- }
-
- public virtual EmitContext CreateEmitContext (ILGenerator ig)
- {
- return new EmitContext (
- this, this.ds, Location, ig, MemberType, ModFlags, false);
- }
-
- protected override bool ResolveMemberType ()
- {
-#if GMCS_SOURCE
- if (GenericMethod != null) {
- MethodBuilder = Parent.TypeBuilder.DefineMethod (GetFullName (MemberName), flags);
- if (!GenericMethod.Define (this))
- return false;
- }
-#endif
-
- return base.ResolveMemberType ();
- }
+ #endregion
+ //
+ // Main member define entry
+ //
public override bool Define ()
{
- if (!base.Define ())
- return false;
-
- if (!CheckBase ())
- return false;
-
- if (block != null && block.IsIterator && !(Parent is IteratorStorey)) {
- //
- // Current method is turned into automatically generated
- // wrapper which creates an instance of iterator
- //
- Iterator.CreateIterator (this, Parent.PartialContainer, ModFlags);
- ModFlags |= Modifiers.DEBUGGER_HIDDEN;
- }
-
- if (IsPartialDefinition) {
- caching_flags &= ~Flags.Excluded_Undetected;
- caching_flags |= Flags.Excluded;
- // Add to member cache only when a partial method implementation is not there
- if ((caching_flags & Flags.MethodOverloadsExist) == 0) {
- MethodBase mb = new PartialMethodDefinitionInfo (this);
- Parent.MemberCache.AddMember (mb, this);
- TypeManager.AddMethod (mb, this);
- }
-
- return true;
- }
-
- MethodData = new MethodData (
- this, ModFlags, flags, this, MethodBuilder, GenericMethod, base_method);
+ DoMemberTypeIndependentChecks ();
- if (!MethodData.Define (Parent.PartialContainer, GetFullName (MemberName)))
+ //
+ // Returns false only when type resolution failed
+ //
+ if (!ResolveMemberType ())
return false;
-
- MethodBuilder = MethodData.MethodBuilder;
-
- if (TypeManager.IsGenericMethod (MethodBuilder))
- Parent.MemberCache.AddGenericMember (MethodBuilder, this);
-
- Parent.MemberCache.AddMember (MethodBuilder, this);
+ DoMemberTypeDependentChecks ();
return true;
}
- protected override void DoMemberTypeIndependentChecks ()
- {
- base.DoMemberTypeIndependentChecks ();
-
- CheckAbstractAndExtern (block != null);
-
- if ((ModFlags & Modifiers.PARTIAL) != 0) {
- for (int i = 0; i < Parameters.Count; ++i) {
- IParameterData p = Parameters.FixedParameters [i];
- if (p.ModFlags == Parameter.Modifier.OUT) {
- Report.Error (752, Location, "`{0}': A partial method parameters cannot use `out' modifier",
- GetSignatureForError ());
- }
-
- if (p.HasDefaultValue && IsPartialImplementation)
- ((Parameter) p).Warning_UselessOptionalParameter ();
- }
- }
- }
-
- protected override void DoMemberTypeDependentChecks ()
+ //
+ // Any type_name independent checks
+ //
+ protected virtual void DoMemberTypeIndependentChecks ()
{
- base.DoMemberTypeDependentChecks ();
-
- if (!TypeManager.IsGenericParameter (MemberType)) {
- if (MemberType.IsAbstract && MemberType.IsSealed) {
- Report.Error (722, Location, Error722, TypeManager.CSharpName (MemberType));
- }
+ if ((Parent.ModFlags & Modifiers.SEALED) != 0 &&
+ (ModFlags & (Modifiers.VIRTUAL | Modifiers.ABSTRACT)) != 0) {
+ Report.Error (549, Location, "New virtual member `{0}' is declared in a sealed class `{1}'",
+ GetSignatureForError (), Parent.GetSignatureForError ());
}
}
- public override void Emit ()
+ //
+ // Any type_name dependent checks
+ //
+ protected virtual void DoMemberTypeDependentChecks ()
{
- if ((ModFlags & Modifiers.COMPILER_GENERATED) != 0 && !Parent.IsCompilerGenerated)
- PredefinedAttributes.Get.CompilerGenerated.EmitAttribute (MethodBuilder);
- if ((ModFlags & Modifiers.DEBUGGER_HIDDEN) != 0)
- PredefinedAttributes.Get.DebuggerHidden.EmitAttribute (MethodBuilder);
-
- if (TypeManager.IsDynamicType (ReturnType)) {
- return_attributes = new ReturnParameter (MethodBuilder, Location);
- return_attributes.EmitPredefined (PredefinedAttributes.Get.Dynamic, Location);
- }
-
- if (OptAttributes != null)
- OptAttributes.Emit ();
-
- if (declarative_security != null) {
- foreach (DictionaryEntry de in declarative_security) {
- MethodBuilder.AddDeclarativeSecurity ((SecurityAction)de.Key, (PermissionSet)de.Value);
+ // verify accessibility
+ if (!IsAccessibleAs (MemberType)) {
+ Report.SymbolRelatedToPreviousError (MemberType);
+ if (this is Property)
+ Report.Error (53, Location,
+ "Inconsistent accessibility: property type `" +
+ TypeManager.CSharpName (MemberType) + "' is less " +
+ "accessible than property `" + GetSignatureForError () + "'");
+ else if (this is Indexer)
+ Report.Error (54, Location,
+ "Inconsistent accessibility: indexer return type `" +
+ TypeManager.CSharpName (MemberType) + "' is less " +
+ "accessible than indexer `" + GetSignatureForError () + "'");
+ else if (this is MethodCore) {
+ if (this is Operator)
+ Report.Error (56, Location,
+ "Inconsistent accessibility: return type `" +
+ TypeManager.CSharpName (MemberType) + "' is less " +
+ "accessible than operator `" + GetSignatureForError () + "'");
+ else
+ Report.Error (50, Location,
+ "Inconsistent accessibility: return type `" +
+ TypeManager.CSharpName (MemberType) + "' is less " +
+ "accessible than method `" + GetSignatureForError () + "'");
+ } else {
+ Report.Error (52, Location,
+ "Inconsistent accessibility: field type `" +
+ TypeManager.CSharpName (MemberType) + "' is less " +
+ "accessible than field `" + GetSignatureForError () + "'");
}
}
- if (MethodData != null)
- MethodData.Emit (Parent);
-
- base.Emit ();
-
- Block = null;
- MethodData = null;
+ Variance variance = this is Event ? Variance.Contravariant : Variance.Covariant;
+ TypeManager.CheckTypeVariance (MemberType, variance, this);
}
- protected void Error_ConditionalAttributeIsNotValid ()
+ protected bool IsTypePermitted ()
{
- Report.Error (577, Location,
- "Conditional not valid on `{0}' because it is a constructor, destructor, operator or explicit interface implementation",
- GetSignatureForError ());
- }
-
- public bool IsPartialDefinition {
- get {
- return (ModFlags & Modifiers.PARTIAL) != 0 && Block == null;
- }
- }
-
- public bool IsPartialImplementation {
- get {
- return (ModFlags & Modifiers.PARTIAL) != 0 && Block != null;
- }
- }
-
- public override string[] ValidAttributeTargets {
- get {
- return attribute_targets;
+ if (TypeManager.IsSpecialType (MemberType)) {
+ Report.Error (610, Location, "Field or property cannot be of type `{0}'", TypeManager.CSharpName (MemberType));
+ return false;
}
+ return true;
}
- #region IMethodData Members
-
- public Type ReturnType {
- get {
- return MemberType;
- }
- }
+ protected virtual bool CheckBase ()
+ {
+ CheckProtectedModifier ();
- public MemberName MethodName {
- get {
- return MemberName;
- }
+ return true;
}
- /// <summary>
- /// Returns true if method has conditional attribute and the conditions is not defined (method is excluded).
- /// </summary>
- public bool IsExcluded () {
- if ((caching_flags & Flags.Excluded_Undetected) == 0)
- return (caching_flags & Flags.Excluded) != 0;
-
- caching_flags &= ~Flags.Excluded_Undetected;
-
- if (base_method == null) {
- if (OptAttributes == null)
- return false;
-
- Attribute[] attrs = OptAttributes.SearchMulti (PredefinedAttributes.Get.Conditional);
-
- if (attrs == null)
- return false;
-
- foreach (Attribute a in attrs) {
- string condition = a.GetConditionalAttributeValue ();
- if (condition == null)
- return false;
-
- if (Location.CompilationUnit.IsConditionalDefined (condition))
- return false;
- }
-
- caching_flags |= Flags.Excluded;
- return true;
- }
+ protected virtual bool ResolveMemberType ()
+ {
+ if (member_type != null)
+ throw new InternalErrorException ("Multi-resolve");
- IMethodData md = TypeManager.GetMethod (TypeManager.DropGenericMethodArguments (base_method));
- if (md == null) {
- if (AttributeTester.IsConditionalMethodExcluded (base_method, Location)) {
- caching_flags |= Flags.Excluded;
- return true;
- }
- return false;
- }
-
- if (md.IsExcluded ()) {
- caching_flags |= Flags.Excluded;
- return true;
- }
- return false;
- }
-
- GenericMethod IMethodData.GenericMethod {
- get {
- return GenericMethod;
- }
- }
-
- public virtual void EmitExtraSymbolInfo (SourceMethod source)
- { }
-
- #endregion
-
- }
-
- public class SourceMethod : IMethodDef
- {
- MethodBase method;
- SourceMethodBuilder builder;
-
- protected SourceMethod (DeclSpace parent, MethodBase method, ICompileUnit file)
- {
- this.method = method;
-
- builder = SymbolWriter.OpenMethod (file, parent.NamespaceEntry.SymbolFileID, this);
- }
-
- public string Name {
- get { return method.Name; }
- }
-
- public int Token {
- get {
- if (method is MethodBuilder)
- return ((MethodBuilder) method).GetToken ().Token;
- else if (method is ConstructorBuilder)
- return ((ConstructorBuilder) method).GetToken ().Token;
- else
- throw new NotSupportedException ();
- }
- }
-
- public void CloseMethod ()
- {
- SymbolWriter.CloseMethod ();
- }
-
- public void SetRealMethodName (string name)
- {
- if (builder != null)
- builder.SetRealMethodName (name);
- }
-
- public static SourceMethod Create (DeclSpace parent, MethodBase method, Block block)
- {
- if (!SymbolWriter.HasSymbolWriter)
- return null;
- if (block == null)
- return null;
-
- Location start_loc = block.StartLocation;
- if (start_loc.IsNull)
- return null;
-
- ICompileUnit compile_unit = start_loc.CompilationUnit;
- if (compile_unit == null)
- return null;
-
- return new SourceMethod (parent, method, compile_unit);
- }
- }
-
- public class Method : MethodOrOperator {
-
- /// <summary>
- /// Modifiers allowed in a class declaration
- /// </summary>
- const int AllowedModifiers =
- Modifiers.NEW |
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.PRIVATE |
- Modifiers.STATIC |
- Modifiers.VIRTUAL |
- Modifiers.SEALED |
- Modifiers.OVERRIDE |
- Modifiers.ABSTRACT |
- Modifiers.UNSAFE |
- Modifiers.EXTERN;
-
- const int AllowedInterfaceModifiers =
- Modifiers.NEW | Modifiers.UNSAFE;
-
- Method partialMethodImplementation;
-
- public Method (DeclSpace parent, GenericMethod generic,
- FullNamedExpression return_type, int mod,
- MemberName name, ParametersCompiled parameters, Attributes attrs)
- : base (parent, generic, return_type, mod,
- parent.PartialContainer.Kind == Kind.Interface ? AllowedInterfaceModifiers : AllowedModifiers,
- name, attrs, parameters)
- {
- }
-
- protected Method (DeclSpace parent, FullNamedExpression return_type, int mod, int amod,
- MemberName name, ParametersCompiled parameters, Attributes attrs)
- : base (parent, null, return_type, mod, amod, name, attrs, parameters)
- {
- }
-
- public override string GetSignatureForError()
- {
- return base.GetSignatureForError () + Parameters.GetSignatureForError ();
- }
-
- static void Error_DuplicateEntryPoint (Method b)
- {
- Report.Error (17, b.Location,
- "Program `{0}' has more than one entry point defined: `{1}'",
- CodeGen.FileName, b.GetSignatureForError ());
- }
-
- bool IsEntryPoint ()
- {
- if (ReturnType != TypeManager.void_type &&
- ReturnType != TypeManager.int32_type)
- return false;
-
- if (Parameters.Count == 0)
- return true;
-
- if (Parameters.Count > 1)
- return false;
-
- Type t = Parameters.Types [0];
- return t.IsArray && t.GetArrayRank () == 1 &&
- TypeManager.GetElementType (t) == TypeManager.string_type &&
- (Parameters[0].ModFlags & ~Parameter.Modifier.PARAMS) == Parameter.Modifier.NONE;
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.Type == pa.Conditional) {
- if (IsExplicitImpl) {
- Error_ConditionalAttributeIsNotValid ();
- return;
- }
-
- if (ReturnType != TypeManager.void_type) {
- Report.Error (578, Location, "Conditional not valid on `{0}' because its return type is not void", GetSignatureForError ());
- return;
- }
-
- if ((ModFlags & Modifiers.OVERRIDE) != 0) {
- Report.Error (243, Location, "Conditional not valid on `{0}' because it is an override method", GetSignatureForError ());
- return;
- }
-
- if (IsInterface) {
- Report.Error (582, Location, "Conditional not valid on interface members");
- return;
- }
-
- if (MethodData.implementing != null) {
- Report.SymbolRelatedToPreviousError (MethodData.implementing.DeclaringType);
- Report.Error (629, Location, "Conditional member `{0}' cannot implement interface member `{1}'",
- GetSignatureForError (), TypeManager.CSharpSignature (MethodData.implementing));
- return;
- }
-
- for (int i = 0; i < Parameters.Count; ++i) {
- if (Parameters.FixedParameters [i].ModFlags == Parameter.Modifier.OUT) {
- Report.Error (685, Location, "Conditional method `{0}' cannot have an out parameter", GetSignatureForError ());
- return;
- }
- }
- }
-
- if (a.Type == pa.Extension) {
- a.Error_MisusedExtensionAttribute ();
- return;
- }
-
- base.ApplyAttributeBuilder (a, cb, pa);
- }
-
- protected override bool CheckForDuplications ()
- {
- if (!base.CheckForDuplications ())
- return false;
-
- ArrayList ar = Parent.PartialContainer.Properties;
- if (ar != null) {
- for (int i = 0; i < ar.Count; ++i) {
- PropertyBase pb = (PropertyBase) ar [i];
- if (pb.AreAccessorsDuplicateImplementation (this))
- return false;
- }
- }
-
- ar = Parent.PartialContainer.Indexers;
- if (ar != null) {
- for (int i = 0; i < ar.Count; ++i) {
- PropertyBase pb = (PropertyBase) ar [i];
- if (pb.AreAccessorsDuplicateImplementation (this))
- return false;
- }
- }
-
- return true;
- }
-
- protected override bool CheckBase ()
- {
- if (!base.CheckBase ())
- return false;
-
- if (base_method != null && (ModFlags & Modifiers.OVERRIDE) != 0 && Name == Destructor.MetadataName) {
- Report.Error (249, Location, "Do not override `{0}'. Use destructor syntax instead",
- TypeManager.CSharpSignature (base_method));
- }
-
- return true;
- }
-
- //
- // Creates the type
- //
- public override bool Define ()
- {
- if (type_name == TypeManager.system_void_expr && Parameters.IsEmpty && Name == Destructor.MetadataName) {
- Report.Warning (465, 1, Location, "Introducing `Finalize' method can interfere with destructor invocation. Did you intend to declare a destructor?");
- }
-
- if (!base.Define ())
- return false;
-
- if (partialMethodImplementation != null && IsPartialDefinition)
- MethodBuilder = partialMethodImplementation.MethodBuilder;
-
- if (RootContext.StdLib && TypeManager.IsSpecialType (ReturnType)) {
- Error1599 (Location, ReturnType);
- return false;
- }
-
- if (base_method != null && (ModFlags & Modifiers.NEW) == 0) {
- if (Parameters.Count == 1 && ParameterTypes [0] == TypeManager.object_type && Name == "Equals")
- Parent.PartialContainer.Mark_HasEquals ();
- else if (Parameters.IsEmpty && Name == "GetHashCode")
- Parent.PartialContainer.Mark_HasGetHashCode ();
- }
-
- if ((ModFlags & Modifiers.STATIC) == 0)
- return true;
-
- if (Parameters.HasExtensionMethodType) {
- if (Parent.PartialContainer.IsStaticClass && !Parent.IsGeneric) {
- if (!Parent.IsTopLevel)
- Report.Error (1109, Location, "`{0}': Extension methods cannot be defined in a nested class",
- GetSignatureForError ());
-
- PredefinedAttribute pa = PredefinedAttributes.Get.Extension;
- if (!pa.IsDefined) {
- Report.Error (1110, Location,
- "`{0}': Extension methods cannot be declared without a reference to System.Core.dll assembly. Add the assembly reference or remove `this' modifer from the first parameter",
- GetSignatureForError ());
- }
-
- ModFlags |= Modifiers.METHOD_EXTENSION;
- Parent.PartialContainer.ModFlags |= Modifiers.METHOD_EXTENSION;
- CodeGen.Assembly.HasExtensionMethods = true;
- } else {
- Report.Error (1106, Location, "`{0}': Extension methods must be defined in a non-generic static class",
- GetSignatureForError ());
- }
- }
-
- //
- // This is used to track the Entry Point,
- //
- if (RootContext.NeedsEntryPoint &&
- Name == "Main" &&
- (RootContext.MainClass == null ||
- RootContext.MainClass == Parent.TypeBuilder.FullName)){
- if (IsEntryPoint ()) {
-
- if (RootContext.EntryPoint == null) {
- if (Parent.IsGeneric || MemberName.IsGeneric) {
- Report.Warning (402, 4, Location, "`{0}': an entry point cannot be generic or in a generic type",
- GetSignatureForError ());
- } else {
- SetMemberIsUsed ();
- RootContext.EntryPoint = this;
- }
- } else {
- Error_DuplicateEntryPoint (RootContext.EntryPoint);
- Error_DuplicateEntryPoint (this);
- }
- } else {
- Report.Warning (28, 4, Location, "`{0}' has the wrong signature to be an entry point",
- GetSignatureForError ());
- }
- }
-
- return true;
- }
-
- //
- // Emits the code
- //
- public override void Emit ()
- {
- try {
- Report.Debug (64, "METHOD EMIT", this, MethodBuilder, Location, Block, MethodData);
- if (IsPartialDefinition) {
- //
- // Use partial method implementation builder for partial method declaration attributes
- //
- if (partialMethodImplementation != null) {
- MethodBuilder = partialMethodImplementation.MethodBuilder;
- return;
- }
- } else if ((ModFlags & Modifiers.PARTIAL) != 0 && (caching_flags & Flags.PartialDefinitionExists) == 0) {
- Report.Error (759, Location, "A partial method `{0}' implementation is missing a partial method declaration",
- GetSignatureForError ());
- }
-
- base.Emit ();
-
- if ((ModFlags & Modifiers.METHOD_EXTENSION) != 0)
- PredefinedAttributes.Get.Extension.EmitAttribute (MethodBuilder);
- } catch {
- Console.WriteLine ("Internal compiler error at {0}: exception caught while emitting {1}",
- Location, MethodBuilder);
- throw;
- }
- }
-
- public override bool EnableOverloadChecks (MemberCore overload)
- {
- // TODO: It can be deleted when members will be defined in correct order
- if (overload is Operator)
- return overload.EnableOverloadChecks (this);
-
- if (overload is Indexer)
- return false;
-
- return base.EnableOverloadChecks (overload);
- }
-
- public static void Error1599 (Location loc, Type t)
- {
- Report.Error (1599, loc, "Method or delegate cannot return type `{0}'", TypeManager.CSharpName (t));
- }
-
- protected override MethodInfo FindOutBaseMethod (ref Type base_ret_type)
- {
- MethodInfo mi = (MethodInfo) Parent.PartialContainer.BaseCache.FindMemberToOverride (
- Parent.TypeBuilder, Name, Parameters, GenericMethod, false);
-
- if (mi == null)
- return null;
-
- if (mi.IsSpecialName)
- return null;
-
- base_ret_type = TypeManager.TypeToCoreType (mi.ReturnType);
- return mi;
- }
-
- public override Type LookupTypeParameter (string name)
- {
- if (GenericMethod != null) {
- Type t = GenericMethod.LookupTypeParameter (name);
- if (t != null)
- return t;
- }
-
- return base.LookupTypeParameter (name);
- }
-
- public void SetPartialDefinition (Method methodDefinition)
- {
- caching_flags |= Flags.PartialDefinitionExists;
- methodDefinition.partialMethodImplementation = this;
-
- for (int i = 0; i < methodDefinition.Parameters.Count; ++i ) {
- Parameters [i].DefaultValue = methodDefinition.Parameters [i].DefaultValue;
- }
-
- if (methodDefinition.attributes == null)
- return;
-
- if (attributes == null) {
- attributes = methodDefinition.attributes;
- } else {
- attributes.Attrs.AddRange (methodDefinition.attributes.Attrs);
- }
- }
-
- protected override bool VerifyClsCompliance ()
- {
- if (!base.VerifyClsCompliance ())
- return false;
-
- if (!Parameters.IsEmpty) {
- ArrayList al = (ArrayList)Parent.PartialContainer.MemberCache.Members [Name];
- if (al.Count > 1)
- MemberCache.VerifyClsParameterConflict (al, this, MethodBuilder);
- }
-
- return true;
- }
- }
-
- public abstract class ConstructorInitializer : ExpressionStatement
- {
- Arguments argument_list;
- MethodGroupExpr base_constructor_group;
-
- public ConstructorInitializer (Arguments argument_list, Location loc)
- {
- this.argument_list = argument_list;
- this.loc = loc;
- }
-
- public Arguments Arguments {
- get {
- return argument_list;
- }
- }
-
- public override Expression CreateExpressionTree (EmitContext ec)
- {
- throw new NotSupportedException ("ET");
- }
-
- public ExpressionStatement Resolve (ConstructorBuilder caller_builder, EmitContext ec)
- {
- if (argument_list != null) {
- bool dynamic;
- argument_list.Resolve (ec, out dynamic);
- if (dynamic) {
- SimpleName ctor = new SimpleName (ConstructorBuilder.ConstructorName, loc);
- return new DynamicInvocation (ctor, argument_list, loc).Resolve (ec) as ExpressionStatement;
- }
- }
-
- if (this is ConstructorBaseInitializer) {
- if (ec.CurrentType.BaseType == null)
- return this;
-
- type = ec.CurrentType.BaseType;
- if (TypeManager.IsStruct (ec.CurrentType)) {
- Report.Error (522, loc,
- "`{0}': Struct constructors cannot call base constructors", TypeManager.CSharpSignature (caller_builder));
- return this;
- }
- } else {
- //
- // It is legal to have "this" initializers that take no arguments
- // in structs, they are just no-ops.
- //
- // struct D { public D (int a) : this () {}
- //
- if (TypeManager.IsStruct (ec.CurrentType) && argument_list == null)
- return this;
-
- type = ec.CurrentType;
- }
-
- base_constructor_group = MemberLookupFinal (
- ec, null, type, ConstructorBuilder.ConstructorName, MemberTypes.Constructor,
- BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly,
- loc) as MethodGroupExpr;
-
- if (base_constructor_group == null)
- return this;
-
- base_constructor_group = base_constructor_group.OverloadResolve (
- ec, ref argument_list, false, loc);
-
- if (base_constructor_group == null)
- return this;
-
- ConstructorInfo base_ctor = (ConstructorInfo)base_constructor_group;
-
- if (base_ctor == caller_builder){
- Report.Error (516, loc, "Constructor `{0}' cannot call itself", TypeManager.CSharpSignature (caller_builder));
- }
-
- return this;
- }
-
- public override Expression DoResolve (EmitContext ec)
- {
- throw new NotSupportedException ();
- }
-
- public override void Emit (EmitContext ec)
- {
- // It can be null for static initializers
- if (base_constructor_group == null)
- return;
-
- ec.Mark (loc);
- if (!ec.IsStatic)
- base_constructor_group.InstanceExpression = ec.GetThis (loc);
-
- base_constructor_group.EmitCall (ec, argument_list);
- }
-
- public override void EmitStatement (EmitContext ec)
- {
- Emit (ec);
- }
- }
-
- public class ConstructorBaseInitializer : ConstructorInitializer {
- public ConstructorBaseInitializer (Arguments argument_list, Location l) :
- base (argument_list, l)
- {
- }
- }
-
- class GeneratedBaseInitializer: ConstructorBaseInitializer {
- public GeneratedBaseInitializer (Location loc):
- base (null, loc)
- {
- }
- }
-
- public class ConstructorThisInitializer : ConstructorInitializer {
- public ConstructorThisInitializer (Arguments argument_list, Location l) :
- base (argument_list, l)
- {
- }
- }
-
- public class Constructor : MethodCore, IMethodData {
- public ConstructorBuilder ConstructorBuilder;
- public ConstructorInitializer Initializer;
- ListDictionary declarative_security;
- bool has_compliant_args;
-
- // <summary>
- // Modifiers allowed for a constructor.
- // </summary>
- public const int AllowedModifiers =
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.STATIC |
- Modifiers.UNSAFE |
- Modifiers.EXTERN |
- Modifiers.PRIVATE;
-
- static readonly string[] attribute_targets = new string [] { "method" };
-
- //
- // The spec claims that static is not permitted, but
- // my very own code has static constructors.
- //
- public Constructor (DeclSpace parent, string name, int mod, Attributes attrs, ParametersCompiled args,
- ConstructorInitializer init, Location loc)
- : base (parent, null, null, mod, AllowedModifiers,
- new MemberName (name, loc), attrs, args)
- {
- Initializer = init;
- }
-
- public bool HasCompliantArgs {
- get { return has_compliant_args; }
- }
-
- public override AttributeTargets AttributeTargets {
- get { return AttributeTargets.Constructor; }
- }
-
- //
- // Returns true if this is a default constructor
- //
- public bool IsDefault ()
- {
- if ((ModFlags & Modifiers.STATIC) != 0)
- return Parameters.IsEmpty;
-
- return Parameters.IsEmpty &&
- (Initializer is ConstructorBaseInitializer) &&
- (Initializer.Arguments == null);
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.IsValidSecurityAttribute ()) {
- if (declarative_security == null) {
- declarative_security = new ListDictionary ();
- }
- a.ExtractSecurityPermissionSet (declarative_security);
- return;
- }
-
- if (a.IsInternalMethodImplAttribute) {
- is_external_implementation = true;
- }
-
- ConstructorBuilder.SetCustomAttribute (cb);
- }
-
- protected override bool CheckBase ()
- {
- if ((ModFlags & Modifiers.STATIC) != 0) {
- if (!Parameters.IsEmpty) {
- Report.Error (132, Location, "`{0}': The static constructor must be parameterless",
- GetSignatureForError ());
- return false;
- }
-
- // the rest can be ignored
- return true;
- }
-
- // Check whether arguments were correct.
- if (!DefineParameters (Parameters))
- return false;
-
- if ((caching_flags & Flags.MethodOverloadsExist) != 0)
- Parent.MemberCache.CheckExistingMembersOverloads (this, ConstructorInfo.ConstructorName,
- Parameters);
-
- if (Parent.PartialContainer.Kind == Kind.Struct) {
- if (Parameters.Count == 0) {
- Report.Error (568, Location,
- "Structs cannot contain explicit parameterless constructors");
- return false;
- }
- }
-
- CheckProtectedModifier ();
-
- return true;
- }
-
- //
- // Creates the ConstructorBuilder
- //
- public override bool Define ()
- {
- if (ConstructorBuilder != null)
- return true;
-
- MethodAttributes ca = (MethodAttributes.RTSpecialName |
- MethodAttributes.SpecialName);
-
- if ((ModFlags & Modifiers.STATIC) != 0) {
- ca |= MethodAttributes.Static | MethodAttributes.Private;
- } else {
- ca |= MethodAttributes.HideBySig;
-
- if ((ModFlags & Modifiers.PUBLIC) != 0)
- ca |= MethodAttributes.Public;
- else if ((ModFlags & Modifiers.PROTECTED) != 0){
- if ((ModFlags & Modifiers.INTERNAL) != 0)
- ca |= MethodAttributes.FamORAssem;
- else
- ca |= MethodAttributes.Family;
- } else if ((ModFlags & Modifiers.INTERNAL) != 0)
- ca |= MethodAttributes.Assembly;
- else
- ca |= MethodAttributes.Private;
- }
-
- if (!CheckAbstractAndExtern (block != null))
- return false;
-
- // Check if arguments were correct.
- if (!CheckBase ())
- return false;
-
- ConstructorBuilder = Parent.TypeBuilder.DefineConstructor (
- ca, CallingConventions,
- Parameters.GetEmitTypes ());
-
- if (Parent.PartialContainer.IsComImport) {
- if (!IsDefault ()) {
- Report.Error (669, Location, "`{0}': A class with the ComImport attribute cannot have a user-defined constructor",
- Parent.GetSignatureForError ());
- }
- ConstructorBuilder.SetImplementationFlags (MethodImplAttributes.InternalCall);
- }
-
- Parent.MemberCache.AddMember (ConstructorBuilder, this);
- TypeManager.AddMethod (ConstructorBuilder, this);
-
- // It's here only to report an error
- if (block != null && block.IsIterator) {
- member_type = TypeManager.void_type;
- Iterator.CreateIterator (this, Parent.PartialContainer, ModFlags);
- }
-
- return true;
- }
-
- //
- // Emits the code
- //
- public override void Emit ()
- {
- if ((ModFlags & Modifiers.DEBUGGER_HIDDEN) != 0)
- PredefinedAttributes.Get.DebuggerHidden.EmitAttribute (ConstructorBuilder);
-
- if (OptAttributes != null)
- OptAttributes.Emit ();
-
- base.Emit ();
-
- EmitContext ec = CreateEmitContext (null);
-
- //
- // If we use a "this (...)" constructor initializer, then
- // do not emit field initializers, they are initialized in the other constructor
- //
- bool emit_field_initializers = ((ModFlags & Modifiers.STATIC) != 0) ||
- !(Initializer is ConstructorThisInitializer);
-
- if (emit_field_initializers)
- Parent.PartialContainer.ResolveFieldInitializers (ec);
-
- if (block != null) {
- // If this is a non-static `struct' constructor and doesn't have any
- // initializer, it must initialize all of the struct's fields.
- if ((Parent.PartialContainer.Kind == Kind.Struct) &&
- ((ModFlags & Modifiers.STATIC) == 0) && (Initializer == null))
- block.AddThisVariable (Parent, Location);
-
- if (!block.ResolveMeta (ec, Parameters))
- block = null;
-
- if (block != null && (ModFlags & Modifiers.STATIC) == 0){
- if (Parent.PartialContainer.Kind == Kind.Class && Initializer == null)
- Initializer = new GeneratedBaseInitializer (Location);
-
- //
- // Spec mandates that Initializers will not have `this' access
- //
- if (Initializer != null) {
- ec.IsStatic = true;
- ExpressionStatement expr = Initializer.Resolve (ConstructorBuilder, ec);
- ec.IsStatic = false;
- block.AddScopeStatement (new StatementExpression (expr));
- }
- }
- }
-
- Parameters.ApplyAttributes (ConstructorBuilder);
-
- SourceMethod source = null;
- if (block == null)
- ec.OmitDebuggingInfo = true;
- else
- source = SourceMethod.Create (Parent, ConstructorBuilder, block);
-
- bool unreachable = false;
- if (block != null) {
- if (!ec.ResolveTopBlock (null, block, Parameters, this, out unreachable))
- return;
-
- ec.EmitMeta (block);
-
- if (Report.Errors > 0)
- return;
-
- ec.EmitResolvedTopBlock (block, unreachable);
- }
-
- if (source != null)
- source.CloseMethod ();
-
- if (declarative_security != null) {
- foreach (DictionaryEntry de in declarative_security) {
- ConstructorBuilder.AddDeclarativeSecurity ((SecurityAction)de.Key, (PermissionSet)de.Value);
- }
- }
-
- block = null;
- }
-
- // Is never override
- protected override MethodInfo FindOutBaseMethod (ref Type base_ret_type)
- {
- return null;
- }
-
- public override string GetSignatureForError()
- {
- return base.GetSignatureForError () + Parameters.GetSignatureForError ();
- }
-
- public override string[] ValidAttributeTargets {
- get {
- return attribute_targets;
- }
- }
-
- protected override bool VerifyClsCompliance ()
- {
- if (!base.VerifyClsCompliance () || !IsExposedFromAssembly ()) {
- return false;
- }
-
- if (!Parameters.IsEmpty) {
- ArrayList al = (ArrayList)Parent.MemberCache.Members [ConstructorInfo.ConstructorName];
- if (al.Count > 2)
- MemberCache.VerifyClsParameterConflict (al, this, ConstructorBuilder);
-
- if (TypeManager.IsSubclassOf (Parent.TypeBuilder, TypeManager.attribute_type)) {
- foreach (Type param in Parameters.Types) {
- if (param.IsArray) {
- return true;
- }
- }
- }
- }
- has_compliant_args = true;
- return true;
- }
-
- #region IMethodData Members
-
- public MemberName MethodName {
- get {
- return MemberName;
- }
- }
-
- public Type ReturnType {
- get {
- return MemberType;
- }
- }
-
- public EmitContext CreateEmitContext (ILGenerator ig)
- {
- ILGenerator ig_ = ConstructorBuilder.GetILGenerator ();
- EmitContext ec = new EmitContext (this, Parent, Location, ig_, TypeManager.void_type, ModFlags, true);
- ec.CurrentBlock = block;
- return ec;
- }
-
- public bool IsExcluded()
- {
- return false;
- }
-
- GenericMethod IMethodData.GenericMethod {
- get {
- return null;
- }
- }
-
- void IMethodData.EmitExtraSymbolInfo (SourceMethod source)
- { }
-
- #endregion
- }
-
- /// <summary>
- /// Interface for MethodData class. Holds links to parent members to avoid member duplication.
- /// </summary>
- public interface IMethodData
- {
- CallingConventions CallingConventions { get; }
- Location Location { get; }
- MemberName MethodName { get; }
- Type ReturnType { get; }
- GenericMethod GenericMethod { get; }
- ParametersCompiled ParameterInfo { get; }
-
- Attributes OptAttributes { get; }
- ToplevelBlock Block { get; set; }
-
- EmitContext CreateEmitContext (ILGenerator ig);
- ObsoleteAttribute GetObsoleteAttribute ();
- string GetSignatureForError ();
- bool IsExcluded ();
- bool IsClsComplianceRequired ();
- void SetMemberIsUsed ();
- void EmitExtraSymbolInfo (SourceMethod source);
- }
-
- //
- // Encapsulates most of the Method's state
- //
- public class MethodData {
- static FieldInfo methodbuilder_attrs_field;
- public readonly IMethodData method;
-
- public readonly GenericMethod GenericMethod;
-
- //
- // Are we implementing an interface ?
- //
- public MethodInfo implementing;
-
- //
- // Protected data.
- //
- protected InterfaceMemberBase member;
- protected int modifiers;
- protected MethodAttributes flags;
- protected Type declaring_type;
- protected MethodInfo parent_method;
-
- MethodBuilder builder = null;
- public MethodBuilder MethodBuilder {
- get {
- return builder;
- }
- }
-
- public Type DeclaringType {
- get {
- return declaring_type;
- }
- }
-
- public MethodData (InterfaceMemberBase member,
- int modifiers, MethodAttributes flags, IMethodData method)
- {
- this.member = member;
- this.modifiers = modifiers;
- this.flags = flags;
-
- this.method = method;
- }
-
- public MethodData (InterfaceMemberBase member,
- int modifiers, MethodAttributes flags,
- IMethodData method, MethodBuilder builder,
- GenericMethod generic, MethodInfo parent_method)
- : this (member, modifiers, flags, method)
- {
- this.builder = builder;
- this.GenericMethod = generic;
- this.parent_method = parent_method;
- }
-
- public bool Define (DeclSpace parent, string method_full_name)
- {
- string name = method.MethodName.Basename;
-
- TypeContainer container = parent.PartialContainer;
-
- PendingImplementation pending = container.PendingImplementations;
- if (pending != null){
- implementing = pending.IsInterfaceMethod (name, member.InterfaceType, this);
-
- if (member.InterfaceType != null){
- if (implementing == null){
- if (member is PropertyBase) {
- Report.Error (550, method.Location, "`{0}' is an accessor not found in interface member `{1}{2}'",
- method.GetSignatureForError (), TypeManager.CSharpName (member.InterfaceType),
- member.GetSignatureForError ().Substring (member.GetSignatureForError ().LastIndexOf ('.')));
-
- } else {
- Report.Error (539, method.Location,
- "`{0}.{1}' in explicit interface declaration is not a member of interface",
- TypeManager.CSharpName (member.InterfaceType), member.ShortName);
- }
- return false;
- }
- if (implementing.IsSpecialName && !(method is AbstractPropertyEventMethod)) {
- Report.SymbolRelatedToPreviousError (implementing);
- Report.Error (683, method.Location, "`{0}' explicit method implementation cannot implement `{1}' because it is an accessor",
- member.GetSignatureForError (), TypeManager.CSharpSignature (implementing));
- return false;
- }
- } else {
- if (implementing != null) {
- AbstractPropertyEventMethod prop_method = method as AbstractPropertyEventMethod;
- if (prop_method == null) {
- if (TypeManager.IsSpecialMethod (implementing)) {
- Report.SymbolRelatedToPreviousError (implementing);
- Report.Error (470, method.Location, "Method `{0}' cannot implement interface accessor `{1}.{2}'",
- method.GetSignatureForError (), TypeManager.CSharpSignature (implementing),
- implementing.Name.StartsWith ("get_") ? "get" : "set");
- }
- } else if (implementing.DeclaringType.IsInterface) {
- if (!implementing.IsSpecialName) {
- Report.SymbolRelatedToPreviousError (implementing);
- Report.Error (686, method.Location, "Accessor `{0}' cannot implement interface member `{1}' for type `{2}'. Use an explicit interface implementation",
- method.GetSignatureForError (), TypeManager.CSharpSignature (implementing), container.GetSignatureForError ());
- return false;
- }
- PropertyBase.PropertyMethod pm = prop_method as PropertyBase.PropertyMethod;
- if (pm != null && pm.HasCustomAccessModifier && (pm.ModFlags & Modifiers.PUBLIC) == 0) {
- Report.SymbolRelatedToPreviousError (implementing);
- Report.Error (277, method.Location, "Accessor `{0}' must be declared public to implement interface member `{1}'",
- method.GetSignatureForError (), TypeManager.CSharpSignature (implementing, true));
- return false;
- }
- }
- }
- }
- }
-
- //
- // For implicit implementations, make sure we are public, for
- // explicit implementations, make sure we are private.
- //
- if (implementing != null){
- //
- // Setting null inside this block will trigger a more
- // verbose error reporting for missing interface implementations
- //
- // The "candidate" function has been flagged already
- // but it wont get cleared
- //
- if (member.IsExplicitImpl){
- if (method.ParameterInfo.HasParams && !TypeManager.GetParameterData (implementing).HasParams) {
- Report.SymbolRelatedToPreviousError (implementing);
- Report.Error (466, method.Location, "`{0}': the explicit interface implementation cannot introduce the params modifier",
- method.GetSignatureForError ());
- return false;
- }
- } else {
- if (implementing.DeclaringType.IsInterface) {
- //
- // If this is an interface method implementation,
- // check for public accessibility
- //
- if ((flags & MethodAttributes.MemberAccessMask) != MethodAttributes.Public)
- {
- implementing = null;
- }
- } else if ((flags & MethodAttributes.MemberAccessMask) == MethodAttributes.Private){
- // We may never be private.
- implementing = null;
-
- } else if ((modifiers & Modifiers.OVERRIDE) == 0){
- //
- // We may be protected if we're overriding something.
- //
- implementing = null;
- }
- }
-
- //
- // Static is not allowed
- //
- if ((modifiers & Modifiers.STATIC) != 0){
- implementing = null;
- }
- }
-
- //
- // If implementing is still valid, set flags
- //
- if (implementing != null){
- //
- // When implementing interface methods, set NewSlot
- // unless, we are overwriting a method.
- //
- if (implementing.DeclaringType.IsInterface){
- if ((modifiers & Modifiers.OVERRIDE) == 0)
- flags |= MethodAttributes.NewSlot;
- }
- flags |=
- MethodAttributes.Virtual |
- MethodAttributes.HideBySig;
-
- // Set Final unless we're virtual, abstract or already overriding a method.
- if ((modifiers & (Modifiers.VIRTUAL | Modifiers.ABSTRACT | Modifiers.OVERRIDE)) == 0)
- flags |= MethodAttributes.Final;
- }
-
- DefineMethodBuilder (container, method_full_name, method.ParameterInfo);
-
- if (builder == null)
- return false;
-
- if (container.CurrentType != null)
- declaring_type = container.CurrentType;
- else
- declaring_type = container.TypeBuilder;
-
- if (implementing != null && member.IsExplicitImpl) {
- container.TypeBuilder.DefineMethodOverride (builder, implementing);
- }
-
- TypeManager.AddMethod (builder, method);
-
- if (GenericMethod != null) {
- bool is_override = member.IsExplicitImpl |
- ((modifiers & Modifiers.OVERRIDE) != 0);
-
- if (implementing != null)
- parent_method = implementing;
-
- EmitContext ec = method.CreateEmitContext (null);
- if (!GenericMethod.DefineType (ec, builder, parent_method, is_override))
- return false;
- }
-
- return true;
- }
-
-
- /// <summary>
- /// Create the MethodBuilder for the method
- /// </summary>
- void DefineMethodBuilder (TypeContainer container, string method_name, ParametersCompiled param)
- {
- if (builder == null) {
- builder = container.TypeBuilder.DefineMethod (
- method_name, flags, method.CallingConventions,
- TypeManager.TypeToReflectionType (method.ReturnType),
- param.GetEmitTypes ());
- return;
- }
-
-#if GMCS_SOURCE
- //
- // Generic method has been already defined to resolve method parameters
- // correctly when they use type parameters
- //
- builder.SetParameters (param.GetEmitTypes ());
- builder.SetReturnType (method.ReturnType);
-#endif
- if (builder.Attributes != flags) {
- try {
- if (methodbuilder_attrs_field == null)
- methodbuilder_attrs_field = typeof (MethodBuilder).GetField ("attrs", BindingFlags.NonPublic | BindingFlags.Instance);
- methodbuilder_attrs_field.SetValue (builder, flags);
- } catch {
- Report.RuntimeMissingSupport (method.Location, "Generic method MethodAttributes");
- }
- }
- }
-
- //
- // Emits the code
- //
- public void Emit (DeclSpace parent)
- {
- ToplevelBlock block = method.Block;
-
- EmitContext ec;
- if (block != null)
- ec = method.CreateEmitContext (builder.GetILGenerator ());
- else
- ec = method.CreateEmitContext (null);
-
- method.ParameterInfo.ApplyAttributes (MethodBuilder);
-
- if (GenericMethod != null)
- GenericMethod.EmitAttributes ();
-
- //
- // clear the pending implementation flag
- //
- if (implementing != null)
- parent.PartialContainer.PendingImplementations.ImplementMethod (method.MethodName.Basename,
- member.InterfaceType, this, member.IsExplicitImpl);
-
- SourceMethod source = SourceMethod.Create (parent, MethodBuilder, method.Block);
-
- ec.EmitTopBlock (method, block);
-
- if (source != null) {
- method.EmitExtraSymbolInfo (source);
- source.CloseMethod ();
- }
- }
- }
-
- public class Destructor : MethodOrOperator
- {
- const int AllowedModifiers =
- Modifiers.UNSAFE |
- Modifiers.EXTERN;
-
- static readonly string[] attribute_targets = new string [] { "method" };
-
- public static readonly string MetadataName = "Finalize";
-
- public Destructor (DeclSpace parent, int mod, ParametersCompiled parameters, Attributes attrs, Location l)
- : base (parent, null, TypeManager.system_void_expr, mod, AllowedModifiers,
- new MemberName (MetadataName, l), attrs, parameters)
- {
- ModFlags &= ~Modifiers.PRIVATE;
- ModFlags |= Modifiers.PROTECTED;
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.Type == pa.Conditional) {
- Error_ConditionalAttributeIsNotValid ();
- return;
- }
-
- base.ApplyAttributeBuilder (a, cb, pa);
- }
-
- protected override bool CheckBase ()
- {
- flags |= MethodAttributes.Virtual;
-
- if (!base.CheckBase ())
- return false;
-
- if (Parent.PartialContainer.BaseCache == null)
- return true;
-
- Type base_type = Parent.PartialContainer.BaseCache.Container.Type;
- if (base_type != null && Block != null) {
- MethodGroupExpr method_expr = Expression.MethodLookup (Parent.TypeBuilder, base_type, MetadataName, Location);
- if (method_expr == null)
- throw new NotImplementedException ();
-
- method_expr.IsBase = true;
- method_expr.InstanceExpression = new CompilerGeneratedThis (Parent.TypeBuilder, Location);
-
- ToplevelBlock new_block = new ToplevelBlock (Block.StartLocation);
- new_block.EndLocation = Block.EndLocation;
-
- Block finaly_block = new ExplicitBlock (new_block, Location, Location);
- Block try_block = new Block (new_block, block);
-
- //
- // 0-size arguments to avoid CS0250 error
- // TODO: Should use AddScopeStatement or something else which emits correct
- // debugger scope
- //
- finaly_block.AddStatement (new StatementExpression (new Invocation (method_expr, new Arguments (0))));
- new_block.AddStatement (new TryFinally (try_block, finaly_block, Location));
-
- block = new_block;
- }
-
- return true;
- }
-
- public override string GetSignatureForError ()
- {
- return Parent.GetSignatureForError () + ".~" + Parent.MemberName.Name + "()";
- }
-
- protected override MethodInfo FindOutBaseMethod (ref Type base_ret_type)
- {
- return null;
- }
-
- public override string[] ValidAttributeTargets {
- get {
- return attribute_targets;
- }
- }
- }
-
- public abstract class MemberBase : MemberCore
- {
- protected FullNamedExpression type_name;
- protected Type member_type;
-
- public readonly DeclSpace ds;
- public readonly GenericMethod GenericMethod;
-
- protected MemberBase (DeclSpace parent, GenericMethod generic,
- FullNamedExpression type, int mod, int allowed_mod, int def_mod,
- MemberName name, Attributes attrs)
- : base (parent, name, attrs)
- {
- this.ds = generic != null ? generic : (DeclSpace) parent;
- this.type_name = type;
- ModFlags = Modifiers.Check (allowed_mod, mod, def_mod, Location);
- GenericMethod = generic;
- if (GenericMethod != null)
- GenericMethod.ModFlags = ModFlags;
- }
-
- //
- // Main member define entry
- //
- public override bool Define ()
- {
- DoMemberTypeIndependentChecks ();
-
- //
- // Returns false only when type resolution failed
- //
- if (!ResolveMemberType ())
- return false;
-
- DoMemberTypeDependentChecks ();
- return true;
- }
-
- //
- // Any type_name independent checks
- //
- protected virtual void DoMemberTypeIndependentChecks ()
- {
- if ((Parent.ModFlags & Modifiers.SEALED) != 0 &&
- (ModFlags & (Modifiers.VIRTUAL | Modifiers.ABSTRACT)) != 0) {
- Report.Error (549, Location, "New virtual member `{0}' is declared in a sealed class `{1}'",
- GetSignatureForError (), Parent.GetSignatureForError ());
- }
- }
-
- //
- // Any type_name dependent checks
- //
- protected virtual void DoMemberTypeDependentChecks ()
- {
- // verify accessibility
- if (!IsAccessibleAs (MemberType)) {
- Report.SymbolRelatedToPreviousError (MemberType);
- if (this is Property)
- Report.Error (53, Location,
- "Inconsistent accessibility: property type `" +
- TypeManager.CSharpName (MemberType) + "' is less " +
- "accessible than property `" + GetSignatureForError () + "'");
- else if (this is Indexer)
- Report.Error (54, Location,
- "Inconsistent accessibility: indexer return type `" +
- TypeManager.CSharpName (MemberType) + "' is less " +
- "accessible than indexer `" + GetSignatureForError () + "'");
- else if (this is MethodCore) {
- if (this is Operator)
- Report.Error (56, Location,
- "Inconsistent accessibility: return type `" +
- TypeManager.CSharpName (MemberType) + "' is less " +
- "accessible than operator `" + GetSignatureForError () + "'");
- else
- Report.Error (50, Location,
- "Inconsistent accessibility: return type `" +
- TypeManager.CSharpName (MemberType) + "' is less " +
- "accessible than method `" + GetSignatureForError () + "'");
- } else {
- Report.Error (52, Location,
- "Inconsistent accessibility: field type `" +
- TypeManager.CSharpName (MemberType) + "' is less " +
- "accessible than field `" + GetSignatureForError () + "'");
- }
- }
-
- Variance variance = this is Event ? Variance.Contravariant : Variance.Covariant;
- TypeManager.CheckTypeVariance (MemberType, variance, this);
- }
-
- protected bool IsTypePermitted ()
- {
- if (TypeManager.IsSpecialType (MemberType)) {
- Report.Error (610, Location, "Field or property cannot be of type `{0}'", TypeManager.CSharpName (MemberType));
- return false;
- }
- return true;
- }
-
- protected virtual bool CheckBase ()
- {
- CheckProtectedModifier ();
-
- return true;
- }
-
- public Type MemberType {
- get { return member_type; }
- }
-
- protected virtual bool ResolveMemberType ()
- {
- if (member_type != null)
- throw new InternalErrorException ("Multi-resolve");
-
- IResolveContext rc = GenericMethod == null ? this : (IResolveContext) ds;
- TypeExpr te = type_name.ResolveAsTypeTerminal (rc, false);
- if (te == null)
- return false;
-
- //
- // Replace original type name, error reporting can use fully resolved name
- //
- type_name = te;
-
- member_type = te.Type;
- return true;
- }
- }
-
- //
- // Abstract class for all fields
- //
- abstract public class FieldBase : MemberBase {
- public FieldBuilder FieldBuilder;
- public Status status;
- protected Expression initializer;
-
- [Flags]
- public enum Status : byte {
- HAS_OFFSET = 4 // Used by FieldMember.
- }
-
- static readonly string[] attribute_targets = new string [] { "field" };
-
- protected FieldBase (DeclSpace parent, FullNamedExpression type, int mod,
- int allowed_mod, MemberName name, Attributes attrs)
- : base (parent, null, type, mod, allowed_mod | Modifiers.ABSTRACT, Modifiers.PRIVATE,
- name, attrs)
- {
- if ((mod & Modifiers.ABSTRACT) != 0)
- Report.Error (681, Location, "The modifier 'abstract' is not valid on fields. Try using a property instead");
- }
-
- public override AttributeTargets AttributeTargets {
- get {
- return AttributeTargets.Field;
- }
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.Type == pa.FieldOffset) {
- status |= Status.HAS_OFFSET;
-
- if (!Parent.PartialContainer.HasExplicitLayout) {
- Report.Error (636, Location, "The FieldOffset attribute can only be placed on members of types marked with the StructLayout(LayoutKind.Explicit)");
- return;
- }
-
- if ((ModFlags & Modifiers.STATIC) != 0 || this is Const) {
- Report.Error (637, Location, "The FieldOffset attribute is not allowed on static or const fields");
- return;
- }
- }
-
-#if NET_2_0
- if (a.Type == pa.FixedBuffer) {
- Report.Error (1716, Location, "Do not use 'System.Runtime.CompilerServices.FixedBuffer' attribute. Use the 'fixed' field modifier instead");
- return;
- }
-#endif
-
-#if !NET_2_0
- if (a.Type == pa.MarshalAs) {
- UnmanagedMarshal marshal = a.GetMarshal (this);
- if (marshal != null) {
- FieldBuilder.SetMarshal (marshal);
- }
- return;
- }
-#endif
- if ((a.HasSecurityAttribute)) {
- a.Error_InvalidSecurityParent ();
- return;
- }
-
- FieldBuilder.SetCustomAttribute (cb);
- }
-
- protected override bool CheckBase ()
- {
- if (!base.CheckBase ())
- return false;
-
- MemberInfo conflict_symbol = Parent.PartialContainer.FindBaseMemberWithSameName (Name, false);
- if (conflict_symbol == null) {
- if ((ModFlags & Modifiers.NEW) != 0) {
- Report.Warning (109, 4, Location, "The member `{0}' does not hide an inherited member. The new keyword is not required", GetSignatureForError ());
- }
- return true;
- }
-
- if ((ModFlags & (Modifiers.NEW | Modifiers.OVERRIDE | Modifiers.BACKING_FIELD)) == 0) {
- Report.SymbolRelatedToPreviousError (conflict_symbol);
- Report.Warning (108, 2, Location, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
- GetSignatureForError (), TypeManager.GetFullNameSignature (conflict_symbol));
- }
-
- return true;
- }
-
- protected override void DoMemberTypeDependentChecks ()
- {
- base.DoMemberTypeDependentChecks ();
-
- if (TypeManager.IsGenericParameter (MemberType))
- return;
-
- if (MemberType.IsSealed && MemberType.IsAbstract) {
- Error_VariableOfStaticClass (Location, GetSignatureForError (), MemberType);
- }
-
- CheckBase ();
- IsTypePermitted ();
- }
-
- //
- // Represents header string for documentation comment.
- //
- public override string DocCommentHeader {
- get { return "F:"; }
- }
-
- public override void Emit ()
- {
- if (TypeManager.IsDynamicType (member_type))
- PredefinedAttributes.Get.Dynamic.EmitAttribute (FieldBuilder);
-
- if ((ModFlags & Modifiers.COMPILER_GENERATED) != 0 && !Parent.IsCompilerGenerated)
- PredefinedAttributes.Get.CompilerGenerated.EmitAttribute (FieldBuilder);
-
- if (OptAttributes != null) {
- OptAttributes.Emit ();
- }
-
- if (((status & Status.HAS_OFFSET) == 0) && (ModFlags & (Modifiers.STATIC | Modifiers.BACKING_FIELD)) == 0 && Parent.PartialContainer.HasExplicitLayout) {
- Report.Error (625, Location, "`{0}': Instance field types marked with StructLayout(LayoutKind.Explicit) must have a FieldOffset attribute", GetSignatureForError ());
- }
-
- base.Emit ();
- }
-
- public static void Error_VariableOfStaticClass (Location loc, string variable_name, Type static_class)
- {
- Report.SymbolRelatedToPreviousError (static_class);
- Report.Error (723, loc, "`{0}': cannot declare variables of static types",
- variable_name);
- }
-
- public Expression Initializer {
- set {
- if (value != null) {
- this.initializer = value;
- }
- }
- }
-
- protected virtual bool IsFieldClsCompliant {
- get {
- if (FieldBuilder == null)
- return true;
-
- return AttributeTester.IsClsCompliant (FieldBuilder.FieldType);
- }
- }
-
- public override string[] ValidAttributeTargets
- {
- get {
- return attribute_targets;
- }
- }
-
- protected override bool VerifyClsCompliance ()
- {
- if (!base.VerifyClsCompliance ())
- return false;
-
- if (!IsFieldClsCompliant) {
- Report.Warning (3003, 1, Location, "Type of `{0}' is not CLS-compliant",
- GetSignatureForError ());
- }
- return true;
- }
-
- public void SetAssigned ()
- {
- caching_flags |= Flags.IsAssigned;
- }
- }
-
- interface IFixedBuffer
- {
- FieldInfo Element { get; }
- Type ElementType { get; }
- }
-
- public class FixedFieldExternal: IFixedBuffer
- {
- FieldInfo element_field;
-
- public FixedFieldExternal (FieldInfo fi)
- {
- element_field = fi.FieldType.GetField (FixedField.FixedElementName);
- }
-
- #region IFixedField Members
-
- public FieldInfo Element {
- get {
- return element_field;
- }
- }
-
- public Type ElementType {
- get {
- return element_field.FieldType;
- }
- }
-
- #endregion
- }
-
- /// <summary>
- /// Fixed buffer implementation
- /// </summary>
- public class FixedField : FieldBase, IFixedBuffer
- {
- public const string FixedElementName = "FixedElementField";
- static int GlobalCounter = 0;
- static object[] ctor_args = new object[] { (short)LayoutKind.Sequential };
- static FieldInfo[] fi;
-
- TypeBuilder fixed_buffer_type;
- FieldBuilder element;
- Expression size_expr;
-
- const int AllowedModifiers =
- Modifiers.NEW |
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.PRIVATE;
-
- public FixedField (DeclSpace parent, FullNamedExpression type, int mod, string name,
- Expression size_expr, Attributes attrs, Location loc):
- base (parent, type, mod, AllowedModifiers, new MemberName (name, loc), attrs)
- {
- if (RootContext.Version < LanguageVersion.ISO_2)
- Report.FeatureIsNotAvailable (loc, "fixed size buffers");
-
- this.size_expr = size_expr;
- }
-
- public override bool Define()
- {
- if (!base.Define ())
- return false;
-
- if (!TypeManager.IsPrimitiveType (MemberType)) {
- Report.Error (1663, Location, "`{0}': Fixed size buffers type must be one of the following: bool, byte, short, int, long, char, sbyte, ushort, uint, ulong, float or double",
- GetSignatureForError ());
- }
-
- // Create nested fixed buffer container
- string name = String.Format ("<{0}>__FixedBuffer{1}", Name, GlobalCounter++);
- fixed_buffer_type = Parent.TypeBuilder.DefineNestedType (name, Parent.Module.DefaultCharSetType |
- TypeAttributes.NestedPublic | TypeAttributes.Sealed | TypeAttributes.BeforeFieldInit, TypeManager.value_type);
-
- element = fixed_buffer_type.DefineField (FixedElementName, MemberType, FieldAttributes.Public);
- RootContext.RegisterCompilerGeneratedType (fixed_buffer_type);
-
- FieldBuilder = Parent.TypeBuilder.DefineField (Name, fixed_buffer_type, Modifiers.FieldAttr (ModFlags));
- Parent.MemberCache.AddMember (FieldBuilder, this);
- TypeManager.RegisterFieldBase (FieldBuilder, this);
-
- return true;
- }
-
- protected override void DoMemberTypeIndependentChecks ()
- {
- base.DoMemberTypeIndependentChecks ();
-
- if (!Parent.IsInUnsafeScope)
- Expression.UnsafeError (Location);
-
- if (Parent.PartialContainer.Kind != Kind.Struct) {
- Report.Error (1642, Location, "`{0}': Fixed size buffer fields may only be members of structs",
- GetSignatureForError ());
- }
- }
-
- public override void Emit()
- {
- EmitContext ec = new EmitContext (this, Parent, Location, null, TypeManager.void_type, ModFlags);
- Constant c = size_expr.ResolveAsConstant (ec, this);
- if (c == null)
- return;
-
- IntConstant buffer_size_const = c.ImplicitConversionRequired (ec, TypeManager.int32_type, Location) as IntConstant;
- if (buffer_size_const == null)
- return;
-
- int buffer_size = buffer_size_const.Value;
-
- if (buffer_size <= 0) {
- Report.Error (1665, Location, "`{0}': Fixed size buffers must have a length greater than zero", GetSignatureForError ());
- return;
- }
-
- int type_size = Expression.GetTypeSize (MemberType);
-
- if (buffer_size > int.MaxValue / type_size) {
- Report.Error (1664, Location, "Fixed size buffer `{0}' of length `{1}' and type `{2}' exceeded 2^31 limit",
- GetSignatureForError (), buffer_size.ToString (), TypeManager.CSharpName (MemberType));
- return;
- }
-
- buffer_size *= type_size;
- EmitFieldSize (buffer_size);
-
- PredefinedAttributes.Get.UnsafeValueType.EmitAttribute (fixed_buffer_type);
-
- base.Emit ();
- }
-
- void EmitFieldSize (int buffer_size)
- {
- CustomAttributeBuilder cab;
- PredefinedAttribute pa;
-
- pa = PredefinedAttributes.Get.StructLayout;
- if (pa.Constructor == null &&
- !pa.ResolveConstructor (Location, TypeManager.short_type))
- return;
-
- // TODO: It's not cleared
- if (fi == null)
- fi = new FieldInfo[] { pa.Type.GetField ("Size") };
-
- object[] fi_val = new object[] { buffer_size };
- cab = new CustomAttributeBuilder (pa.Constructor,
- ctor_args, fi, fi_val);
- fixed_buffer_type.SetCustomAttribute (cab);
-
- //
- // Don't emit FixedBufferAttribute attribute for private types
- //
- if ((ModFlags & Modifiers.PRIVATE) != 0)
- return;
-
- pa = PredefinedAttributes.Get.FixedBuffer;
- if (pa.Constructor == null &&
- !pa.ResolveConstructor (Location, TypeManager.type_type, TypeManager.int32_type))
- return;
-
- cab = new CustomAttributeBuilder (pa.Constructor, new object[] { MemberType, buffer_size });
- FieldBuilder.SetCustomAttribute (cab);
- }
-
- protected override bool IsFieldClsCompliant {
- get {
- return false;
- }
- }
-
- public void SetCharSet (TypeAttributes ta)
- {
- TypeAttributes cta = fixed_buffer_type.Attributes;
- if ((cta & TypeAttributes.UnicodeClass) != (ta & TypeAttributes.UnicodeClass))
- SetTypeBuilderCharSet ((cta & ~TypeAttributes.AutoClass) | TypeAttributes.UnicodeClass);
- else if ((cta & TypeAttributes.AutoClass) != (ta & TypeAttributes.AutoClass))
- SetTypeBuilderCharSet ((cta & ~TypeAttributes.UnicodeClass) | TypeAttributes.AutoClass);
- else if (cta == 0 && ta != 0)
- SetTypeBuilderCharSet (cta & ~(TypeAttributes.UnicodeClass | TypeAttributes.AutoClass));
- }
-
- void SetTypeBuilderCharSet (TypeAttributes ta)
- {
- MethodInfo mi = typeof (TypeBuilder).GetMethod ("SetCharSet", BindingFlags.Instance | BindingFlags.NonPublic);
- if (mi == null) {
- Report.RuntimeMissingSupport (Location, "TypeBuilder::SetCharSet");
- } else {
- mi.Invoke (fixed_buffer_type, new object [] { ta });
- }
- }
-
- #region IFixedField Members
-
- public FieldInfo Element {
- get {
- return element;
- }
- }
-
- public Type ElementType {
- get {
- return MemberType;
- }
- }
-
- #endregion
- }
-
- //
- // The Field class is used to represents class/struct fields during parsing.
- //
- public class Field : FieldBase {
- // <summary>
- // Modifiers allowed in a class declaration
- // </summary>
- const int AllowedModifiers =
- Modifiers.NEW |
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.PRIVATE |
- Modifiers.STATIC |
- Modifiers.VOLATILE |
- Modifiers.UNSAFE |
- Modifiers.READONLY;
-
- public Field (DeclSpace parent, FullNamedExpression type, int mod, MemberName name,
- Attributes attrs)
- : base (parent, type, mod, AllowedModifiers, name, attrs)
- {
- }
-
- bool CanBeVolatile ()
- {
- if (TypeManager.IsReferenceType (MemberType))
- return true;
-
- if (MemberType == TypeManager.bool_type || MemberType == TypeManager.char_type ||
- MemberType == TypeManager.sbyte_type || MemberType == TypeManager.byte_type ||
- MemberType == TypeManager.short_type || MemberType == TypeManager.ushort_type ||
- MemberType == TypeManager.int32_type || MemberType == TypeManager.uint32_type ||
- MemberType == TypeManager.float_type ||
- MemberType == TypeManager.intptr_type || MemberType == TypeManager.uintptr_type)
- return true;
-
- if (TypeManager.IsEnumType (MemberType))
- return true;
-
- return false;
- }
-
- bool CheckStructLayout (Type type, bool isStatic)
- {
- if (TypeManager.IsBuiltinType (type))
- return true;
-
- if (isStatic) {
- if (!TypeManager.IsValueType (type) || TypeManager.IsEqual (type, Parent.TypeBuilder))
- return true;
- }
-
- if (!TypeManager.IsEqual (TypeManager.DropGenericTypeArguments (type), Parent.TypeBuilder)) {
- if (!TypeManager.IsGenericType (type))
- return true;
-
- foreach (Type t in TypeManager.GetTypeArguments (type)) {
- if (!CheckStructLayout (t, false))
- return false;
- }
- return true;
- }
-
- Report.Error (523, Location,
- "Struct member `{0}' of type `{1}' causes a cycle in the struct layout",
- GetSignatureForError (), TypeManager.CSharpName (MemberType));
- return false;
- }
-
- public override bool Define ()
- {
- if (!base.Define ())
- return false;
-
- try {
-#if GMCS_SOURCE
- Type[] required_modifier = null;
- if ((ModFlags & Modifiers.VOLATILE) != 0) {
- if (TypeManager.isvolatile_type == null)
- TypeManager.isvolatile_type = TypeManager.CoreLookupType (
- "System.Runtime.CompilerServices", "IsVolatile", Kind.Class, true);
-
- if (TypeManager.isvolatile_type != null)
- required_modifier = new Type [] { TypeManager.isvolatile_type };
- }
-
- FieldBuilder = Parent.TypeBuilder.DefineField (
- Name, MemberType, required_modifier, null, Modifiers.FieldAttr (ModFlags));
-#else
- FieldBuilder = Parent.TypeBuilder.DefineField (
- Name, MemberType, Modifiers.FieldAttr (ModFlags));
-#endif
- // Don't cache inaccessible fields
- if ((ModFlags & Modifiers.BACKING_FIELD) == 0) {
- Parent.MemberCache.AddMember (FieldBuilder, this);
- }
-
- TypeManager.RegisterFieldBase (FieldBuilder, this);
- }
- catch (ArgumentException) {
- Report.RuntimeMissingSupport (Location, "`void' or `void*' field type");
- return false;
- }
-
- if (initializer != null) {
- ((TypeContainer) Parent).RegisterFieldForInitialization (this,
- new FieldInitializer (FieldBuilder, initializer, this));
- } else {
- if (Parent.PartialContainer.Kind == Kind.Struct)
- CheckStructLayout (member_type, (ModFlags & Modifiers.STATIC) != 0);
- }
-
- return true;
- }
-
- protected override void DoMemberTypeDependentChecks ()
- {
- base.DoMemberTypeDependentChecks ();
-
- if ((ModFlags & Modifiers.VOLATILE) != 0) {
- if (!CanBeVolatile ()) {
- Report.Error (677, Location, "`{0}': A volatile field cannot be of the type `{1}'",
- GetSignatureForError (), TypeManager.CSharpName (MemberType));
- }
-
- if ((ModFlags & Modifiers.READONLY) != 0) {
- Report.Error (678, Location, "`{0}': A field cannot be both volatile and readonly",
- GetSignatureForError ());
- }
- }
- }
-
- protected override bool VerifyClsCompliance ()
- {
- if (!base.VerifyClsCompliance ())
- return false;
-
- if ((ModFlags & Modifiers.VOLATILE) != 0) {
- Report.Warning (3026, 1, Location, "CLS-compliant field `{0}' cannot be volatile", GetSignatureForError ());
- }
-
- return true;
- }
- }
-
- //
- // `set' and `get' accessors are represented with an Accessor.
- //
- public class Accessor {
- //
- // Null if the accessor is empty, or a Block if not
- //
- public const int AllowedModifiers =
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.PRIVATE;
-
- public ToplevelBlock Block;
- public Attributes Attributes;
- public Location Location;
- public int ModFlags;
- public ParametersCompiled Parameters;
-
- public Accessor (ToplevelBlock b, int mod, Attributes attrs, ParametersCompiled p, Location loc)
- {
- Block = b;
- Attributes = attrs;
- Location = loc;
- Parameters = p;
- ModFlags = Modifiers.Check (AllowedModifiers, mod, 0, loc);
- }
- }
-
- // Ooouh Martin, templates are missing here.
- // When it will be possible move here a lot of child code and template method type.
- public abstract class AbstractPropertyEventMethod : MemberCore, IMethodData {
- protected MethodData method_data;
- protected ToplevelBlock block;
- protected ListDictionary declarative_security;
-
- // The accessor are created even if they are not wanted.
- // But we need them because their names are reserved.
- // Field says whether accessor will be emited or not
- public readonly bool IsDummy;
-
- protected readonly string prefix;
-
- ReturnParameter return_attributes;
-
- public AbstractPropertyEventMethod (PropertyBasedMember member, string prefix)
- : base (member.Parent, SetupName (prefix, member, member.Location), null)
- {
- this.prefix = prefix;
- IsDummy = true;
- }
-
- public AbstractPropertyEventMethod (InterfaceMemberBase member, Accessor accessor,
- string prefix)
- : base (member.Parent, SetupName (prefix, member, accessor.Location),
- accessor.Attributes)
- {
- this.prefix = prefix;
- this.block = accessor.Block;
- }
-
- static MemberName SetupName (string prefix, InterfaceMemberBase member, Location loc)
- {
- return new MemberName (member.MemberName.Left, prefix + member.ShortName, loc);
- }
-
- public void UpdateName (InterfaceMemberBase member)
- {
- SetMemberName (SetupName (prefix, member, Location));
- }
-
- #region IMethodData Members
-
- public ToplevelBlock Block {
- get {
- return block;
- }
-
- set {
- block = value;
- }
- }
-
- public CallingConventions CallingConventions {
- get {
- return CallingConventions.Standard;
- }
- }
-
- public bool IsExcluded ()
- {
- return false;
- }
-
- GenericMethod IMethodData.GenericMethod {
- get {
- return null;
- }
- }
-
- public MemberName MethodName {
- get {
- return MemberName;
- }
- }
-
- public Type[] ParameterTypes {
- get {
- return ParameterInfo.Types;
- }
- }
-
- public abstract ParametersCompiled ParameterInfo { get ; }
- public abstract Type ReturnType { get; }
- public abstract EmitContext CreateEmitContext (ILGenerator ig);
-
- #endregion
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.Type == pa.CLSCompliant || a.Type == pa.Obsolete || a.Type == pa.Conditional) {
- Report.Error (1667, a.Location,
- "Attribute `{0}' is not valid on property or event accessors. It is valid on `{1}' declarations only",
- TypeManager.CSharpName (a.Type), a.GetValidTargets ());
- return;
- }
-
- if (a.IsValidSecurityAttribute ()) {
- if (declarative_security == null)
- declarative_security = new ListDictionary ();
- a.ExtractSecurityPermissionSet (declarative_security);
- return;
- }
-
- if (a.Target == AttributeTargets.Method) {
- method_data.MethodBuilder.SetCustomAttribute (cb);
- return;
- }
-
- if (a.Target == AttributeTargets.ReturnValue) {
- if (return_attributes == null)
- return_attributes = new ReturnParameter (method_data.MethodBuilder, Location);
-
- return_attributes.ApplyAttributeBuilder (a, cb, pa);
- return;
- }
-
- ApplyToExtraTarget (a, cb, pa);
- }
-
- protected virtual void ApplyToExtraTarget (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- throw new NotSupportedException ("You forgot to define special attribute target handling");
- }
-
- // It is not supported for the accessors
- public sealed override bool Define()
- {
- throw new NotSupportedException ();
- }
-
- public virtual void Emit (DeclSpace parent)
- {
- method_data.Emit (parent);
-
- if ((ModFlags & Modifiers.COMPILER_GENERATED) != 0 && !Parent.IsCompilerGenerated)
- PredefinedAttributes.Get.CompilerGenerated.EmitAttribute (method_data.MethodBuilder);
- if (((ModFlags & Modifiers.DEBUGGER_HIDDEN) != 0))
- PredefinedAttributes.Get.DebuggerHidden.EmitAttribute (method_data.MethodBuilder);
-
- if (TypeManager.IsDynamicType (ReturnType)) {
- return_attributes = new ReturnParameter (method_data.MethodBuilder, Location);
- return_attributes.EmitPredefined (PredefinedAttributes.Get.Dynamic, Location);
- }
-
- if (OptAttributes != null)
- OptAttributes.Emit ();
-
- if (declarative_security != null) {
- foreach (DictionaryEntry de in declarative_security) {
- method_data.MethodBuilder.AddDeclarativeSecurity ((SecurityAction)de.Key, (PermissionSet)de.Value);
- }
- }
-
- block = null;
- }
-
- public override bool EnableOverloadChecks (MemberCore overload)
- {
- // This can only happen with indexers and it will
- // be catched as indexer difference
- if (overload is AbstractPropertyEventMethod)
- return true;
-
- if (overload is MethodCore) {
- caching_flags |= Flags.MethodOverloadsExist;
- return true;
- }
- return false;
- }
-
- public override bool IsClsComplianceRequired()
- {
- return false;
- }
-
- public bool IsDuplicateImplementation (MethodCore method)
- {
- if (!MemberName.Equals (method.MemberName))
- return false;
-
- Type[] param_types = method.ParameterTypes;
-
- if (param_types == null || param_types.Length != ParameterTypes.Length)
- return false;
-
- for (int i = 0; i < param_types.Length; i++)
- if (param_types [i] != ParameterTypes [i])
- return false;
-
- Report.SymbolRelatedToPreviousError (method);
- Report.Error (82, Location, "A member `{0}' is already reserved",
- method.GetSignatureForError ());
- return true;
- }
-
- public override bool IsUsed
- {
- get {
- if (IsDummy)
- return false;
-
- return base.IsUsed;
- }
- }
-
- //
- // Represents header string for documentation comment.
- //
- public override string DocCommentHeader {
- get { throw new InvalidOperationException ("Unexpected attempt to get doc comment from " + this.GetType () + "."); }
- }
-
- void IMethodData.EmitExtraSymbolInfo (SourceMethod source)
- { }
- }
-
- //
- // Properties and Indexers both generate PropertyBuilders, we use this to share
- // their common bits.
- //
- abstract public class PropertyBase : PropertyBasedMember {
-
- public class GetMethod : PropertyMethod
- {
- static string[] attribute_targets = new string [] { "method", "return" };
-
- public GetMethod (PropertyBase method):
- base (method, "get_")
- {
- }
-
- public GetMethod (PropertyBase method, Accessor accessor):
- base (method, accessor, "get_")
- {
- }
-
- public override MethodBuilder Define (DeclSpace parent)
- {
- base.Define (parent);
-
- if (IsDummy)
- return null;
-
- method_data = new MethodData (method, ModFlags, flags, this);
-
- if (!method_data.Define (parent, method.GetFullName (MemberName)))
- return null;
-
- return method_data.MethodBuilder;
- }
-
- public override Type ReturnType {
- get {
- return method.MemberType;
- }
- }
-
- public override ParametersCompiled ParameterInfo {
- get {
- return ParametersCompiled.EmptyReadOnlyParameters;
- }
- }
-
- public override string[] ValidAttributeTargets {
- get {
- return attribute_targets;
- }
- }
- }
-
- public class SetMethod : PropertyMethod {
-
- static string[] attribute_targets = new string [] { "method", "param", "return" };
- ImplicitParameter param_attr;
- protected ParametersCompiled parameters;
-
- public SetMethod (PropertyBase method) :
- base (method, "set_")
- {
- parameters = new ParametersCompiled (
- new Parameter (method.type_name, "value", Parameter.Modifier.NONE, null, Location));
- }
-
- public SetMethod (PropertyBase method, Accessor accessor):
- base (method, accessor, "set_")
- {
- this.parameters = accessor.Parameters;
- }
-
- protected override void ApplyToExtraTarget (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.Target == AttributeTargets.Parameter) {
- if (param_attr == null)
- param_attr = new ImplicitParameter (method_data.MethodBuilder);
-
- param_attr.ApplyAttributeBuilder (a, cb, pa);
- return;
- }
-
- base.ApplyAttributeBuilder (a, cb, pa);
- }
-
- public override ParametersCompiled ParameterInfo {
- get {
- return parameters;
- }
- }
-
- public override MethodBuilder Define (DeclSpace parent)
- {
- parameters.Resolve (this);
-
- base.Define (parent);
-
- if (IsDummy)
- return null;
-
- method_data = new MethodData (method, ModFlags, flags, this);
-
- if (!method_data.Define (parent, method.GetFullName (MemberName)))
- return null;
-
- return method_data.MethodBuilder;
- }
-
- public override Type ReturnType {
- get {
- return TypeManager.void_type;
- }
- }
-
- public override string[] ValidAttributeTargets {
- get {
- return attribute_targets;
- }
- }
- }
-
- static string[] attribute_targets = new string [] { "property" };
-
- public abstract class PropertyMethod : AbstractPropertyEventMethod
- {
- protected readonly PropertyBase method;
- protected MethodAttributes flags;
-
- public PropertyMethod (PropertyBase method, string prefix)
- : base (method, prefix)
- {
- this.method = method;
- this.ModFlags = method.ModFlags & (Modifiers.STATIC | Modifiers.UNSAFE);
- }
-
- public PropertyMethod (PropertyBase method, Accessor accessor,
- string prefix)
- : base (method, accessor, prefix)
- {
- this.method = method;
- this.ModFlags = accessor.ModFlags | (method.ModFlags & (Modifiers.STATIC | Modifiers.UNSAFE));
-
- if (accessor.ModFlags != 0 && RootContext.Version == LanguageVersion.ISO_1) {
- Report.FeatureIsNotAvailable (Location, "access modifiers on properties");
- }
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.IsInternalMethodImplAttribute) {
- method.is_external_implementation = true;
- }
-
- base.ApplyAttributeBuilder (a, cb, pa);
- }
-
- public override AttributeTargets AttributeTargets {
- get {
- return AttributeTargets.Method;
- }
- }
-
- public override bool IsClsComplianceRequired ()
- {
- return method.IsClsComplianceRequired ();
- }
-
- public virtual MethodBuilder Define (DeclSpace parent)
- {
- CheckForDuplications ();
-
- if (IsDummy) {
- if (method.InterfaceType != null && parent.PartialContainer.PendingImplementations != null) {
- MethodInfo mi = parent.PartialContainer.PendingImplementations.IsInterfaceMethod (
- MethodName.Name, method.InterfaceType, new MethodData (method, ModFlags, flags, this));
- if (mi != null) {
- Report.SymbolRelatedToPreviousError (mi);
- Report.Error (551, Location, "Explicit interface implementation `{0}' is missing accessor `{1}'",
- method.GetSignatureForError (), TypeManager.CSharpSignature (mi, true));
- }
- }
- return null;
- }
-
- TypeContainer container = parent.PartialContainer;
-
- //
- // Check for custom access modifier
- //
- if ((ModFlags & Modifiers.Accessibility) == 0) {
- ModFlags |= method.ModFlags;
- flags = method.flags;
- } else {
- if (container.Kind == Kind.Interface)
- Report.Error (275, Location, "`{0}': accessibility modifiers may not be used on accessors in an interface",
- GetSignatureForError ());
-
- if ((method.ModFlags & Modifiers.ABSTRACT) != 0 && (ModFlags & Modifiers.PRIVATE) != 0) {
- Report.Error (442, Location, "`{0}': abstract properties cannot have private accessors", GetSignatureForError ());
- }
-
- CheckModifiers (ModFlags);
- ModFlags |= (method.ModFlags & (~Modifiers.Accessibility));
- ModFlags |= Modifiers.PROPERTY_CUSTOM;
- flags = Modifiers.MethodAttr (ModFlags);
- flags |= (method.flags & (~MethodAttributes.MemberAccessMask));
- }
-
- CheckAbstractAndExtern (block != null);
-
- if (block != null && block.IsIterator)
- Iterator.CreateIterator (this, Parent.PartialContainer, ModFlags);
-
- return null;
- }
-
- public bool HasCustomAccessModifier {
- get {
- return (ModFlags & Modifiers.PROPERTY_CUSTOM) != 0;
- }
- }
-
- public PropertyBase Property {
- get {
- return method;
- }
- }
-
- public override EmitContext CreateEmitContext (ILGenerator ig)
- {
- return new EmitContext (this,
- method.ds, method.Location, ig, ReturnType,
- method.ModFlags, false);
- }
-
- public override ObsoleteAttribute GetObsoleteAttribute ()
- {
- return method.GetObsoleteAttribute ();
- }
-
- public override string GetSignatureForError()
- {
- return method.GetSignatureForError () + '.' + prefix.Substring (0, 3);
- }
-
- void CheckModifiers (int modflags)
- {
- modflags &= Modifiers.Accessibility;
- int flags = 0;
- int mflags = method.ModFlags & Modifiers.Accessibility;
-
- if ((mflags & Modifiers.PUBLIC) != 0) {
- flags |= Modifiers.PROTECTED | Modifiers.INTERNAL | Modifiers.PRIVATE;
- }
- else if ((mflags & Modifiers.PROTECTED) != 0) {
- if ((mflags & Modifiers.INTERNAL) != 0)
- flags |= Modifiers.PROTECTED | Modifiers.INTERNAL;
-
- flags |= Modifiers.PRIVATE;
- }
- else if ((mflags & Modifiers.INTERNAL) != 0)
- flags |= Modifiers.PRIVATE;
-
- if ((mflags == modflags) || (modflags & (~flags)) != 0) {
- Report.Error (273, Location,
- "The accessibility modifier of the `{0}' accessor must be more restrictive than the modifier of the property or indexer `{1}'",
- GetSignatureForError (), method.GetSignatureForError ());
- }
- }
-
- protected bool CheckForDuplications ()
- {
- if ((caching_flags & Flags.MethodOverloadsExist) == 0)
- return true;
-
- return Parent.MemberCache.CheckExistingMembersOverloads (this, Name, ParameterInfo);
- }
- }
-
- public PropertyMethod Get, Set;
- public PropertyBuilder PropertyBuilder;
- public MethodBuilder GetBuilder, SetBuilder;
-
- protected bool define_set_first = false;
-
- public PropertyBase (DeclSpace parent, FullNamedExpression type, int mod_flags,
- int allowed_mod, MemberName name,
- Attributes attrs, bool define_set_first)
- : base (parent, null, type, mod_flags, allowed_mod, name, attrs)
- {
- this.define_set_first = define_set_first;
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.HasSecurityAttribute) {
- a.Error_InvalidSecurityParent ();
- return;
- }
-
- PropertyBuilder.SetCustomAttribute (cb);
- }
-
- public override AttributeTargets AttributeTargets {
- get {
- return AttributeTargets.Property;
- }
- }
-
- protected override void DoMemberTypeDependentChecks ()
- {
- base.DoMemberTypeDependentChecks ();
-
- IsTypePermitted ();
-#if MS_COMPATIBLE
- if (MemberType.IsGenericParameter)
- return;
-#endif
-
- if ((MemberType.Attributes & Class.StaticClassAttribute) == Class.StaticClassAttribute) {
- Report.Error (722, Location, Error722, TypeManager.CSharpName (MemberType));
- }
- }
-
- protected override void DoMemberTypeIndependentChecks ()
- {
- base.DoMemberTypeIndependentChecks ();
-
- //
- // Accessors modifiers check
- //
- if ((Get.ModFlags & Modifiers.Accessibility) != 0 &&
- (Set.ModFlags & Modifiers.Accessibility) != 0) {
- Report.Error (274, Location, "`{0}': Cannot specify accessibility modifiers for both accessors of the property or indexer",
- GetSignatureForError ());
- }
-
- if ((ModFlags & Modifiers.OVERRIDE) == 0 &&
- (Get.IsDummy && (Set.ModFlags & Modifiers.Accessibility) != 0) ||
- (Set.IsDummy && (Get.ModFlags & Modifiers.Accessibility) != 0)) {
- Report.Error (276, Location,
- "`{0}': accessibility modifiers on accessors may only be used if the property or indexer has both a get and a set accessor",
- GetSignatureForError ());
- }
- }
-
- bool DefineGet ()
- {
- GetBuilder = Get.Define (Parent);
- return (Get.IsDummy) ? true : GetBuilder != null;
- }
-
- bool DefineSet (bool define)
- {
- if (!define)
- return true;
-
- SetBuilder = Set.Define (Parent);
- return (Set.IsDummy) ? true : SetBuilder != null;
- }
-
- protected bool DefineAccessors ()
- {
- return DefineSet (define_set_first) &&
- DefineGet () &&
- DefineSet (!define_set_first);
- }
-
- protected abstract PropertyInfo ResolveBaseProperty ();
-
- // TODO: rename to Resolve......
- protected override MethodInfo FindOutBaseMethod (ref Type base_ret_type)
- {
- PropertyInfo base_property = ResolveBaseProperty ();
- if (base_property == null)
- return null;
-
- base_ret_type = base_property.PropertyType;
- MethodInfo get_accessor = base_property.GetGetMethod (true);
- MethodInfo set_accessor = base_property.GetSetMethod (true);
- MethodAttributes get_accessor_access = 0, set_accessor_access = 0;
-
- //
- // Check base property accessors conflict
- //
- if ((ModFlags & (Modifiers.OVERRIDE | Modifiers.NEW)) == Modifiers.OVERRIDE) {
- if (get_accessor == null) {
- if (Get != null && !Get.IsDummy) {
- Report.SymbolRelatedToPreviousError (base_property);
- Report.Error (545, Location,
- "`{0}.get': cannot override because `{1}' does not have an overridable get accessor",
- GetSignatureForError (), TypeManager.GetFullNameSignature (base_property));
- }
- } else {
- get_accessor_access = get_accessor.Attributes & MethodAttributes.MemberAccessMask;
-
- if (!Get.IsDummy && !CheckAccessModifiers (
- Modifiers.MethodAttr (Get.ModFlags) & MethodAttributes.MemberAccessMask, get_accessor_access, get_accessor))
- Error_CannotChangeAccessModifiers (Get.Location, get_accessor, get_accessor_access, ".get");
- }
-
- if (set_accessor == null) {
- if (Set != null && !Set.IsDummy) {
- Report.SymbolRelatedToPreviousError (base_property);
- Report.Error (546, Location,
- "`{0}.set': cannot override because `{1}' does not have an overridable set accessor",
- GetSignatureForError (), TypeManager.GetFullNameSignature (base_property));
- }
- } else {
- set_accessor_access = set_accessor.Attributes & MethodAttributes.MemberAccessMask;
-
- if (!Set.IsDummy && !CheckAccessModifiers (
- Modifiers.MethodAttr (Set.ModFlags) & MethodAttributes.MemberAccessMask, set_accessor_access, set_accessor))
- Error_CannotChangeAccessModifiers (Set.Location, set_accessor, set_accessor_access, ".set");
- }
- }
-
- // When one accessor does not exist and property hides base one
- // we need to propagate this upwards
- if (set_accessor == null)
- set_accessor = get_accessor;
-
- //
- // Get the less restrictive access
- //
- return get_accessor_access > set_accessor_access ? get_accessor : set_accessor;
- }
-
- public override void Emit ()
- {
- //
- // The PropertyBuilder can be null for explicit implementations, in that
- // case, we do not actually emit the ".property", so there is nowhere to
- // put the attribute
- //
- if (PropertyBuilder != null) {
- if (OptAttributes != null)
- OptAttributes.Emit ();
-
- if (TypeManager.IsDynamicType (member_type))
- PredefinedAttributes.Get.Dynamic.EmitAttribute (PropertyBuilder);
- }
-
- if (!Get.IsDummy)
- Get.Emit (Parent);
-
- if (!Set.IsDummy)
- Set.Emit (Parent);
-
- base.Emit ();
- }
-
- /// <summary>
- /// Tests whether accessors are not in collision with some method (CS0111)
- /// </summary>
- public bool AreAccessorsDuplicateImplementation (MethodCore mc)
- {
- return Get.IsDuplicateImplementation (mc) || Set.IsDuplicateImplementation (mc);
- }
-
- public override bool IsUsed
- {
- get {
- if (IsExplicitImpl)
- return true;
-
- return Get.IsUsed | Set.IsUsed;
- }
- }
-
- protected override void SetMemberName (MemberName new_name)
- {
- base.SetMemberName (new_name);
-
- Get.UpdateName (this);
- Set.UpdateName (this);
- }
-
- public override string[] ValidAttributeTargets {
- get {
- return attribute_targets;
- }
- }
-
- //
- // Represents header string for documentation comment.
- //
- public override string DocCommentHeader {
- get { return "P:"; }
- }
- }
-
- public class Property : PropertyBase
- {
- public sealed class BackingField : Field
- {
- readonly Property property;
-
- public BackingField (Property p)
- : base (p.Parent, p.type_name,
- Modifiers.BACKING_FIELD | Modifiers.COMPILER_GENERATED | Modifiers.PRIVATE | (p.ModFlags & (Modifiers.STATIC | Modifiers.UNSAFE)),
- new MemberName ("<" + p.GetFullName (p.MemberName) + ">k__BackingField", p.Location), null)
- {
- this.property = p;
- }
-
- public override string GetSignatureForError ()
- {
- return property.GetSignatureForError ();
- }
- }
-
- const int AllowedModifiers =
- Modifiers.NEW |
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.PRIVATE |
- Modifiers.STATIC |
- Modifiers.SEALED |
- Modifiers.OVERRIDE |
- Modifiers.ABSTRACT |
- Modifiers.UNSAFE |
- Modifiers.EXTERN |
- Modifiers.VIRTUAL;
-
- const int AllowedInterfaceModifiers =
- Modifiers.NEW;
-
- public Property (DeclSpace parent, FullNamedExpression type, int mod,
- MemberName name, Attributes attrs, Accessor get_block,
- Accessor set_block, bool define_set_first)
- : this (parent, type, mod, name, attrs, get_block, set_block,
- define_set_first, null)
- {
- }
-
- public Property (DeclSpace parent, FullNamedExpression type, int mod,
- MemberName name, Attributes attrs, Accessor get_block,
- Accessor set_block, bool define_set_first, Block current_block)
- : base (parent, type, mod,
- parent.PartialContainer.Kind == Kind.Interface ? AllowedInterfaceModifiers : AllowedModifiers,
- name, attrs, define_set_first)
- {
- if (get_block == null)
- Get = new GetMethod (this);
- else
- Get = new GetMethod (this, get_block);
-
- if (set_block == null)
- Set = new SetMethod (this);
- else
- Set = new SetMethod (this, set_block);
-
- if (!IsInterface && (mod & (Modifiers.ABSTRACT | Modifiers.EXTERN)) == 0 &&
- get_block != null && get_block.Block == null &&
- set_block != null && set_block.Block == null) {
- if (RootContext.Version <= LanguageVersion.ISO_2)
- Report.FeatureIsNotAvailable (Location, "automatically implemented properties");
-
- Get.ModFlags |= Modifiers.COMPILER_GENERATED;
- Set.ModFlags |= Modifiers.COMPILER_GENERATED;
- }
- }
-
- void CreateAutomaticProperty ()
- {
- // Create backing field
- Field field = new BackingField (this);
- if (!field.Define ())
- return;
-
- Parent.PartialContainer.AddField (field);
-
- FieldExpr fe = new FieldExpr (field.FieldBuilder, Location);
- if ((field.ModFlags & Modifiers.STATIC) == 0)
- fe.InstanceExpression = new CompilerGeneratedThis (fe.Type, Location);
-
- // Create get block
- Get.Block = new ToplevelBlock (ParametersCompiled.EmptyReadOnlyParameters, Location);
- Return r = new Return (fe, Location);
- Get.Block.AddStatement (r);
-
- // Create set block
- Set.Block = new ToplevelBlock (Set.ParameterInfo, Location);
- Assign a = new SimpleAssign (fe, new SimpleName ("value", Location));
- Set.Block.AddStatement (new StatementExpression (a));
- }
-
- public override bool Define ()
- {
- if (!base.Define ())
- return false;
-
- flags |= MethodAttributes.HideBySig | MethodAttributes.SpecialName;
-
- if ((Get.ModFlags & Modifiers.COMPILER_GENERATED) != 0)
- CreateAutomaticProperty ();
-
- if (!DefineAccessors ())
- return false;
-
- if (!CheckBase ())
- return false;
-
- // FIXME - PropertyAttributes.HasDefault ?
-
- PropertyBuilder = Parent.TypeBuilder.DefineProperty (
- GetFullName (MemberName), PropertyAttributes.None, MemberType, null);
-
- if (!Get.IsDummy) {
- PropertyBuilder.SetGetMethod (GetBuilder);
- Parent.MemberCache.AddMember (GetBuilder, Get);
- }
-
- if (!Set.IsDummy) {
- PropertyBuilder.SetSetMethod (SetBuilder);
- Parent.MemberCache.AddMember (SetBuilder, Set);
- }
-
- TypeManager.RegisterProperty (PropertyBuilder, this);
- Parent.MemberCache.AddMember (PropertyBuilder, this);
- return true;
- }
-
- public override void Emit ()
- {
- if (((Set.ModFlags | Get.ModFlags) & (Modifiers.STATIC | Modifiers.COMPILER_GENERATED)) == Modifiers.COMPILER_GENERATED && Parent.PartialContainer.HasExplicitLayout) {
- Report.Error (842, Location,
- "Automatically implemented property `{0}' cannot be used inside a type with an explicit StructLayout attribute",
- GetSignatureForError ());
- }
-
- base.Emit ();
- }
-
- protected override PropertyInfo ResolveBaseProperty ()
- {
- return Parent.PartialContainer.BaseCache.FindMemberToOverride (
- Parent.TypeBuilder, Name, ParametersCompiled.EmptyReadOnlyParameters, null, true) as PropertyInfo;
- }
- }
-
- /// </summary>
- /// Gigantic workaround for lameness in SRE follows :
- /// This class derives from EventInfo and attempts to basically
- /// wrap around the EventBuilder so that FindMembers can quickly
- /// return this in it search for members
- /// </summary>
- public class MyEventBuilder : EventInfo {
-
- //
- // We use this to "point" to our Builder which is
- // not really a MemberInfo
- //
- EventBuilder MyBuilder;
-
- //
- // We "catch" and wrap these methods
- //
- MethodInfo raise, remove, add;
-
- EventAttributes attributes;
- Type declaring_type, reflected_type, event_type;
- string name;
-
- Event my_event;
-
- public MyEventBuilder (Event ev, TypeBuilder type_builder, string name, EventAttributes event_attr, Type event_type)
- {
- MyBuilder = type_builder.DefineEvent (name, event_attr, event_type);
-
- // And now store the values in our own fields.
-
- declaring_type = type_builder;
-
- reflected_type = type_builder;
-
- attributes = event_attr;
- this.name = name;
- my_event = ev;
- this.event_type = event_type;
- }
-
- //
- // Methods that you have to override. Note that you only need
- // to "implement" the variants that take the argument (those are
- // the "abstract" methods, the others (GetAddMethod()) are
- // regular.
- //
- public override MethodInfo GetAddMethod (bool nonPublic)
- {
- return add;
- }
-
- public override MethodInfo GetRemoveMethod (bool nonPublic)
- {
- return remove;
- }
-
- public override MethodInfo GetRaiseMethod (bool nonPublic)
- {
- return raise;
- }
-
- //
- // These methods make "MyEventInfo" look like a Builder
- //
- public void SetRaiseMethod (MethodBuilder raiseMethod)
- {
- raise = raiseMethod;
- MyBuilder.SetRaiseMethod (raiseMethod);
- }
-
- public void SetRemoveOnMethod (MethodBuilder removeMethod)
- {
- remove = removeMethod;
- MyBuilder.SetRemoveOnMethod (removeMethod);
- }
-
- public void SetAddOnMethod (MethodBuilder addMethod)
- {
- add = addMethod;
- MyBuilder.SetAddOnMethod (addMethod);
- }
-
- public void SetCustomAttribute (CustomAttributeBuilder cb)
- {
- MyBuilder.SetCustomAttribute (cb);
- }
-
- public override object [] GetCustomAttributes (bool inherit)
- {
- // FIXME : There's nothing which can be seemingly done here because
- // we have no way of getting at the custom attribute objects of the
- // EventBuilder !
- return null;
- }
-
- public override object [] GetCustomAttributes (Type t, bool inherit)
- {
- // FIXME : Same here !
- return null;
- }
-
- public override bool IsDefined (Type t, bool b)
- {
- return true;
- }
-
- public override EventAttributes Attributes {
- get {
- return attributes;
- }
- }
-
- public override string Name {
- get {
- return name;
- }
- }
-
- public override Type DeclaringType {
- get {
- return declaring_type;
- }
- }
-
- public override Type ReflectedType {
- get {
- return reflected_type;
- }
- }
-
- public Type EventType {
- get {
- return event_type;
- }
- }
-
- public void SetUsed ()
- {
- if (my_event != null) {
-// my_event.SetAssigned ();
- my_event.SetMemberIsUsed ();
- }
- }
- }
-
- /// <summary>
- /// For case when event is declared like property (with add and remove accessors).
- /// </summary>
- public class EventProperty: Event {
- abstract class AEventPropertyAccessor : AEventAccessor
- {
- protected AEventPropertyAccessor (Event method, Accessor accessor, string prefix):
- base (method, accessor, prefix)
- {
- }
-
- public override MethodBuilder Define (DeclSpace ds)
- {
- CheckAbstractAndExtern (block != null);
- return base.Define (ds);
- }
-
- public override string GetSignatureForError ()
- {
- return method.GetSignatureForError () + "." + prefix.Substring (0, prefix.Length - 1);
- }
- }
-
- sealed class AddDelegateMethod: AEventPropertyAccessor
- {
- public AddDelegateMethod (Event method, Accessor accessor):
- base (method, accessor, AddPrefix)
- {
- }
- }
-
- sealed class RemoveDelegateMethod: AEventPropertyAccessor
- {
- public RemoveDelegateMethod (Event method, Accessor accessor):
- base (method, accessor, RemovePrefix)
- {
- }
- }
-
-
- static readonly string[] attribute_targets = new string [] { "event" }; // "property" target was disabled for 2.0 version
-
- public EventProperty (DeclSpace parent, FullNamedExpression type, int mod_flags,
- MemberName name,
- Attributes attrs, Accessor add, Accessor remove)
- : base (parent, type, mod_flags, name, attrs)
- {
- Add = new AddDelegateMethod (this, add);
- Remove = new RemoveDelegateMethod (this, remove);
- }
-
- public override bool Define()
- {
- if (!base.Define ())
- return false;
-
- SetMemberIsUsed ();
- return true;
- }
-
- public override string[] ValidAttributeTargets {
- get {
- return attribute_targets;
- }
- }
- }
-
- /// <summary>
- /// Event is declared like field.
- /// </summary>
- public class EventField : Event {
- abstract class EventFieldAccessor : AEventAccessor
- {
- protected EventFieldAccessor (Event method, string prefix)
- : base (method, prefix)
- {
- }
-
- public override void Emit (DeclSpace parent)
- {
- if ((method.ModFlags & (Modifiers.ABSTRACT | Modifiers.EXTERN)) == 0) {
- if (parent is Class) {
- MethodBuilder mb = method_data.MethodBuilder;
- mb.SetImplementationFlags (mb.GetMethodImplementationFlags () | MethodImplAttributes.Synchronized);
- }
-
- // TODO: because we cannot use generics yet
- FieldInfo field_info = ((EventField) method).BackingField.FieldBuilder;
- FieldExpr f_expr = new FieldExpr (field_info, Location);
- if ((method.ModFlags & Modifiers.STATIC) == 0)
- f_expr.InstanceExpression = new CompilerGeneratedThis (field_info.FieldType, Location);
-
- block = new ToplevelBlock (ParameterInfo, Location);
- block.AddStatement (new StatementExpression (
- new CompoundAssign (Operation,
- f_expr,
- block.GetParameterReference (ParameterInfo[0].Name, Location))));
- }
-
- base.Emit (parent);
- }
-
- protected abstract Binary.Operator Operation { get; }
- }
-
- sealed class AddDelegateMethod: EventFieldAccessor
- {
- public AddDelegateMethod (Event method):
- base (method, AddPrefix)
- {
- }
-
- protected override Binary.Operator Operation {
- get { return Binary.Operator.Addition; }
- }
- }
-
- sealed class RemoveDelegateMethod: EventFieldAccessor
- {
- public RemoveDelegateMethod (Event method):
- base (method, RemovePrefix)
- {
- }
-
- protected override Binary.Operator Operation {
- get { return Binary.Operator.Subtraction; }
- }
- }
-
-
- static readonly string[] attribute_targets = new string [] { "event", "field", "method" };
- static readonly string[] attribute_targets_interface = new string[] { "event", "method" };
-
- public Field BackingField;
- public Expression Initializer;
-
- public EventField (DeclSpace parent, FullNamedExpression type, int mod_flags, MemberName name, Attributes attrs)
- : base (parent, type, mod_flags, name, attrs)
- {
- Add = new AddDelegateMethod (this);
- Remove = new RemoveDelegateMethod (this);
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.Target == AttributeTargets.Field) {
- BackingField.ApplyAttributeBuilder (a, cb, pa);
- return;
- }
-
- if (a.Target == AttributeTargets.Method) {
- int errors = Report.Errors;
- Add.ApplyAttributeBuilder (a, cb, pa);
- if (errors == Report.Errors)
- Remove.ApplyAttributeBuilder (a, cb, pa);
- return;
- }
-
- base.ApplyAttributeBuilder (a, cb, pa);
- }
-
- public override bool Define()
- {
- if (!base.Define ())
- return false;
-
- if (Initializer != null && (ModFlags & Modifiers.ABSTRACT) != 0) {
- Report.Error (74, Location, "`{0}': abstract event cannot have an initializer",
- GetSignatureForError ());
- }
-
- if (!HasBackingField) {
- SetMemberIsUsed ();
- return true;
- }
-
- // FIXME: We are unable to detect whether generic event is used because
- // we are using FieldExpr instead of EventExpr for event access in that
- // case. When this issue will be fixed this hack can be removed.
- if (TypeManager.IsGenericType (MemberType))
- SetMemberIsUsed ();
-
- if (Add.IsInterfaceImplementation)
- SetMemberIsUsed ();
-
- TypeManager.RegisterEventField (EventBuilder, this);
-
- BackingField = new Field (Parent,
- new TypeExpression (MemberType, Location),
- Modifiers.BACKING_FIELD | Modifiers.COMPILER_GENERATED | Modifiers.PRIVATE | (ModFlags & (Modifiers.STATIC | Modifiers.UNSAFE)),
- MemberName, null);
-
- Parent.PartialContainer.AddField (BackingField);
- BackingField.Initializer = Initializer;
- BackingField.ModFlags &= ~Modifiers.COMPILER_GENERATED;
-
- // Call define because we passed fields definition
- return BackingField.Define ();
- }
-
- bool HasBackingField {
- get {
- return !IsInterface && (ModFlags & Modifiers.ABSTRACT) == 0;
- }
- }
-
- public override string[] ValidAttributeTargets
- {
- get {
- return HasBackingField ? attribute_targets : attribute_targets_interface;
- }
- }
- }
-
- public abstract class Event : PropertyBasedMember {
- public abstract class AEventAccessor : AbstractPropertyEventMethod
- {
- protected readonly Event method;
- ImplicitParameter param_attr;
-
- static readonly string[] attribute_targets = new string [] { "method", "param", "return" };
-
- public const string AddPrefix = "add_";
- public const string RemovePrefix = "remove_";
-
- protected AEventAccessor (Event method, string prefix)
- : base (method, prefix)
- {
- this.method = method;
- this.ModFlags = method.ModFlags;
- }
-
- protected AEventAccessor (Event method, Accessor accessor, string prefix)
- : base (method, accessor, prefix)
- {
- this.method = method;
- this.ModFlags = method.ModFlags;
- }
-
- public bool IsInterfaceImplementation {
- get { return method_data.implementing != null; }
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.IsInternalMethodImplAttribute) {
- method.is_external_implementation = true;
- }
-
- base.ApplyAttributeBuilder (a, cb, pa);
- }
-
- protected override void ApplyToExtraTarget (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.Target == AttributeTargets.Parameter) {
- if (param_attr == null)
- param_attr = new ImplicitParameter (method_data.MethodBuilder);
-
- param_attr.ApplyAttributeBuilder (a, cb, pa);
- return;
- }
-
- base.ApplyAttributeBuilder (a, cb, pa);
- }
-
- public override AttributeTargets AttributeTargets {
- get {
- return AttributeTargets.Method;
- }
- }
-
- public override bool IsClsComplianceRequired ()
- {
- return method.IsClsComplianceRequired ();
- }
-
- public virtual MethodBuilder Define (DeclSpace parent)
- {
- method_data = new MethodData (method, method.ModFlags,
- method.flags | MethodAttributes.HideBySig | MethodAttributes.SpecialName, this);
-
- if (!method_data.Define (parent, method.GetFullName (MemberName)))
- return null;
-
- MethodBuilder mb = method_data.MethodBuilder;
- ParameterInfo.ApplyAttributes (mb);
- return mb;
- }
-
- public override Type ReturnType {
- get {
- return TypeManager.void_type;
- }
- }
-
- public override EmitContext CreateEmitContext (ILGenerator ig)
- {
- return new EmitContext (
- this, method.Parent, Location, ig, ReturnType,
- method.ModFlags, false);
- }
-
- public override ObsoleteAttribute GetObsoleteAttribute ()
- {
- return method.GetObsoleteAttribute ();
- }
-
- public override string[] ValidAttributeTargets {
- get {
- return attribute_targets;
- }
- }
-
- public override ParametersCompiled ParameterInfo {
- get {
- return method.parameters;
- }
- }
- }
-
-
- const int AllowedModifiers =
- Modifiers.NEW |
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.PRIVATE |
- Modifiers.STATIC |
- Modifiers.VIRTUAL |
- Modifiers.SEALED |
- Modifiers.OVERRIDE |
- Modifiers.UNSAFE |
- Modifiers.ABSTRACT |
- Modifiers.EXTERN;
-
- const int AllowedInterfaceModifiers =
- Modifiers.NEW;
-
- public AEventAccessor Add, Remove;
- public MyEventBuilder EventBuilder;
- public MethodBuilder AddBuilder, RemoveBuilder;
-
- ParametersCompiled parameters;
-
- protected Event (DeclSpace parent, FullNamedExpression type, int mod_flags, MemberName name, Attributes attrs)
- : base (parent, null, type, mod_flags,
- parent.PartialContainer.Kind == Kind.Interface ? AllowedInterfaceModifiers : AllowedModifiers,
- name, attrs)
- {
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if ((a.HasSecurityAttribute)) {
- a.Error_InvalidSecurityParent ();
- return;
- }
-
- EventBuilder.SetCustomAttribute (cb);
- }
-
- public bool AreAccessorsDuplicateImplementation (MethodCore mc)
- {
- return Add.IsDuplicateImplementation (mc) || Remove.IsDuplicateImplementation (mc);
- }
-
- public override AttributeTargets AttributeTargets {
- get {
- return AttributeTargets.Event;
- }
- }
-
- public override bool Define ()
- {
- if (!base.Define ())
- return false;
-
- if (!TypeManager.IsDelegateType (MemberType)) {
- Report.Error (66, Location, "`{0}': event must be of a delegate type", GetSignatureForError ());
- }
-
- parameters = ParametersCompiled.CreateFullyResolved (
- new Parameter (null, "value", Parameter.Modifier.NONE, null, Location), MemberType);
-
- if (!CheckBase ())
- return false;
-
- if (TypeManager.delegate_combine_delegate_delegate == null) {
- TypeManager.delegate_combine_delegate_delegate = TypeManager.GetPredefinedMethod (
- TypeManager.delegate_type, "Combine", Location,
- TypeManager.delegate_type, TypeManager.delegate_type);
- }
- if (TypeManager.delegate_remove_delegate_delegate == null) {
- TypeManager.delegate_remove_delegate_delegate = TypeManager.GetPredefinedMethod (
- TypeManager.delegate_type, "Remove", Location,
- TypeManager.delegate_type, TypeManager.delegate_type);
- }
-
- //
- // Now define the accessors
- //
-
- AddBuilder = Add.Define (Parent);
- if (AddBuilder == null)
- return false;
-
- RemoveBuilder = Remove.Define (Parent);
- if (RemoveBuilder == null)
- return false;
-
- EventBuilder = new MyEventBuilder (this, Parent.TypeBuilder, Name, EventAttributes.None, MemberType);
- EventBuilder.SetAddOnMethod (AddBuilder);
- EventBuilder.SetRemoveOnMethod (RemoveBuilder);
-
- Parent.MemberCache.AddMember (EventBuilder, this);
- Parent.MemberCache.AddMember (AddBuilder, Add);
- Parent.MemberCache.AddMember (RemoveBuilder, Remove);
-
- return true;
- }
-
- public override void Emit ()
- {
- if (OptAttributes != null) {
- OptAttributes.Emit ();
- }
-
- Add.Emit (Parent);
- Remove.Emit (Parent);
-
- base.Emit ();
- }
-
- protected override MethodInfo FindOutBaseMethod (ref Type base_ret_type)
- {
- MethodInfo mi = (MethodInfo) Parent.PartialContainer.BaseCache.FindBaseEvent (
- Parent.TypeBuilder, Name);
-
- if (mi == null)
- return null;
-
- AParametersCollection pd = TypeManager.GetParameterData (mi);
- base_ret_type = pd.Types [0];
- return mi;
- }
-
- //
- // Represents header string for documentation comment.
- //
- public override string DocCommentHeader {
- get { return "E:"; }
- }
- }
-
-
- public class Indexer : PropertyBase
- {
- public class GetIndexerMethod : GetMethod
- {
- ParametersCompiled parameters;
-
- public GetIndexerMethod (Indexer method):
- base (method)
- {
- this.parameters = method.parameters;
- }
-
- public GetIndexerMethod (PropertyBase method, Accessor accessor):
- base (method, accessor)
- {
- parameters = accessor.Parameters;
- }
-
- public override MethodBuilder Define (DeclSpace parent)
- {
- parameters.Resolve (this);
- return base.Define (parent);
- }
-
- public override bool EnableOverloadChecks (MemberCore overload)
- {
- if (base.EnableOverloadChecks (overload)) {
- overload.caching_flags |= Flags.MethodOverloadsExist;
- return true;
- }
-
- return false;
- }
-
- public override ParametersCompiled ParameterInfo {
- get {
- return parameters;
- }
- }
- }
-
- public class SetIndexerMethod: SetMethod
- {
- public SetIndexerMethod (Indexer method):
- base (method)
- {
- parameters = ParametersCompiled.MergeGenerated (method.parameters, false, parameters [0], null);
- }
-
- public SetIndexerMethod (PropertyBase method, Accessor accessor):
- base (method, accessor)
- {
- parameters = method.Get.IsDummy ? accessor.Parameters : accessor.Parameters.Clone ();
- }
-
- public override bool EnableOverloadChecks (MemberCore overload)
- {
- if (base.EnableOverloadChecks (overload)) {
- overload.caching_flags |= Flags.MethodOverloadsExist;
- return true;
- }
-
- return false;
- }
- }
-
- const int AllowedModifiers =
- Modifiers.NEW |
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.PRIVATE |
- Modifiers.VIRTUAL |
- Modifiers.SEALED |
- Modifiers.OVERRIDE |
- Modifiers.UNSAFE |
- Modifiers.EXTERN |
- Modifiers.ABSTRACT;
-
- const int AllowedInterfaceModifiers =
- Modifiers.NEW;
-
- public readonly ParametersCompiled parameters;
-
- public Indexer (DeclSpace parent, FullNamedExpression type, MemberName name, int mod,
- ParametersCompiled parameters, Attributes attrs,
- Accessor get_block, Accessor set_block, bool define_set_first)
- : base (parent, type, mod,
- parent.PartialContainer.Kind == Kind.Interface ? AllowedInterfaceModifiers : AllowedModifiers,
- name, attrs, define_set_first)
- {
- this.parameters = parameters;
-
- if (get_block == null)
- Get = new GetIndexerMethod (this);
- else
- Get = new GetIndexerMethod (this, get_block);
-
- if (set_block == null)
- Set = new SetIndexerMethod (this);
- else
- Set = new SetIndexerMethod (this, set_block);
- }
-
- protected override bool CheckForDuplications ()
- {
- return Parent.MemberCache.CheckExistingMembersOverloads (this, GetFullName (MemberName), parameters);
- }
-
- public override bool Define ()
- {
- if (!base.Define ())
- return false;
-
- if (!DefineParameters (parameters))
- return false;
-
- if (OptAttributes != null) {
- Attribute indexer_attr = OptAttributes.Search (PredefinedAttributes.Get.IndexerName);
- if (indexer_attr != null) {
- // Remove the attribute from the list because it is not emitted
- OptAttributes.Attrs.Remove (indexer_attr);
-
- string name = indexer_attr.GetIndexerAttributeValue ();
- if (name == null)
- return false;
-
- ShortName = name;
-
- if (IsExplicitImpl) {
- Report.Error (415, indexer_attr.Location,
- "The `IndexerName' attribute is valid only on an " +
- "indexer that is not an explicit interface member declaration");
- return false;
- }
-
- if ((ModFlags & Modifiers.OVERRIDE) != 0) {
- Report.Error (609, indexer_attr.Location,
- "Cannot set the `IndexerName' attribute on an indexer marked override");
- return false;
- }
- }
- }
-
- if (InterfaceType != null) {
- string base_IndexerName = TypeManager.IndexerPropertyName (InterfaceType);
- if (base_IndexerName != Name)
- ShortName = base_IndexerName;
- }
-
- if (!Parent.PartialContainer.AddMember (this) ||
- !Parent.PartialContainer.AddMember (Get) || !Parent.PartialContainer.AddMember (Set))
- return false;
-
- flags |= MethodAttributes.HideBySig | MethodAttributes.SpecialName;
-
- if (!DefineAccessors ())
- return false;
-
- if (!CheckBase ())
- return false;
-
- //
- // Now name the parameters
- //
- PropertyBuilder = Parent.TypeBuilder.DefineProperty (
- GetFullName (MemberName), PropertyAttributes.None, MemberType, parameters.GetEmitTypes ());
-
- if (!Get.IsDummy) {
- PropertyBuilder.SetGetMethod (GetBuilder);
- Parent.MemberCache.AddMember (GetBuilder, Get);
- }
-
- if (!Set.IsDummy) {
- PropertyBuilder.SetSetMethod (SetBuilder);
- Parent.MemberCache.AddMember (SetBuilder, Set);
- }
-
- TypeManager.RegisterIndexer (PropertyBuilder, parameters);
- Parent.MemberCache.AddMember (PropertyBuilder, this);
- return true;
- }
-
- public override bool EnableOverloadChecks (MemberCore overload)
- {
- if (overload is Indexer) {
- caching_flags |= Flags.MethodOverloadsExist;
- return true;
- }
-
- return base.EnableOverloadChecks (overload);
- }
-
- public override string GetDocCommentName (DeclSpace ds)
- {
- return DocUtil.GetMethodDocCommentName (this, parameters, ds);
- }
-
- public override string GetSignatureForError ()
- {
- StringBuilder sb = new StringBuilder (Parent.GetSignatureForError ());
- if (MemberName.Left != null) {
- sb.Append ('.');
- sb.Append (MemberName.Left.GetSignatureForError ());
- }
-
- sb.Append (".this");
- sb.Append (parameters.GetSignatureForError ().Replace ('(', '[').Replace (')', ']'));
- return sb.ToString ();
- }
-
- protected override PropertyInfo ResolveBaseProperty ()
- {
- return Parent.PartialContainer.BaseCache.FindMemberToOverride (
- Parent.TypeBuilder, Name, parameters, null, true) as PropertyInfo;
- }
-
- protected override bool VerifyClsCompliance ()
- {
- if (!base.VerifyClsCompliance ())
- return false;
-
- parameters.VerifyClsCompliance ();
- return true;
- }
- }
-
- public class Operator : MethodOrOperator {
-
- const int AllowedModifiers =
- Modifiers.PUBLIC |
- Modifiers.UNSAFE |
- Modifiers.EXTERN |
- Modifiers.STATIC;
-
- public enum OpType : byte {
-
- // Unary operators
- LogicalNot,
- OnesComplement,
- Increment,
- Decrement,
- True,
- False,
-
- // Unary and Binary operators
- Addition,
- Subtraction,
-
- UnaryPlus,
- UnaryNegation,
-
- // Binary operators
- Multiply,
- Division,
- Modulus,
- BitwiseAnd,
- BitwiseOr,
- ExclusiveOr,
- LeftShift,
- RightShift,
- Equality,
- Inequality,
- GreaterThan,
- LessThan,
- GreaterThanOrEqual,
- LessThanOrEqual,
-
- // Implicit and Explicit
- Implicit,
- Explicit,
-
- // Just because of enum
- TOP
- };
-
- public readonly OpType OperatorType;
-
- static readonly string [] [] names;
-
- static Operator ()
- {
- names = new string[(int)OpType.TOP][];
- names [(int) OpType.LogicalNot] = new string [] { "!", "op_LogicalNot" };
- names [(int) OpType.OnesComplement] = new string [] { "~", "op_OnesComplement" };
- names [(int) OpType.Increment] = new string [] { "++", "op_Increment" };
- names [(int) OpType.Decrement] = new string [] { "--", "op_Decrement" };
- names [(int) OpType.True] = new string [] { "true", "op_True" };
- names [(int) OpType.False] = new string [] { "false", "op_False" };
- names [(int) OpType.Addition] = new string [] { "+", "op_Addition" };
- names [(int) OpType.Subtraction] = new string [] { "-", "op_Subtraction" };
- names [(int) OpType.UnaryPlus] = new string [] { "+", "op_UnaryPlus" };
- names [(int) OpType.UnaryNegation] = new string [] { "-", "op_UnaryNegation" };
- names [(int) OpType.Multiply] = new string [] { "*", "op_Multiply" };
- names [(int) OpType.Division] = new string [] { "/", "op_Division" };
- names [(int) OpType.Modulus] = new string [] { "%", "op_Modulus" };
- names [(int) OpType.BitwiseAnd] = new string [] { "&", "op_BitwiseAnd" };
- names [(int) OpType.BitwiseOr] = new string [] { "|", "op_BitwiseOr" };
- names [(int) OpType.ExclusiveOr] = new string [] { "^", "op_ExclusiveOr" };
- names [(int) OpType.LeftShift] = new string [] { "<<", "op_LeftShift" };
- names [(int) OpType.RightShift] = new string [] { ">>", "op_RightShift" };
- names [(int) OpType.Equality] = new string [] { "==", "op_Equality" };
- names [(int) OpType.Inequality] = new string [] { "!=", "op_Inequality" };
- names [(int) OpType.GreaterThan] = new string [] { ">", "op_GreaterThan" };
- names [(int) OpType.LessThan] = new string [] { "<", "op_LessThan" };
- names [(int) OpType.GreaterThanOrEqual] = new string [] { ">=", "op_GreaterThanOrEqual" };
- names [(int) OpType.LessThanOrEqual] = new string [] { "<=", "op_LessThanOrEqual" };
- names [(int) OpType.Implicit] = new string [] { "implicit", "op_Implicit" };
- names [(int) OpType.Explicit] = new string [] { "explicit", "op_Explicit" };
- }
-
- public Operator (DeclSpace parent, OpType type, FullNamedExpression ret_type,
- int mod_flags, ParametersCompiled parameters,
- ToplevelBlock block, Attributes attrs, Location loc)
- : base (parent, null, ret_type, mod_flags, AllowedModifiers,
- new MemberName (GetMetadataName (type), loc), attrs, parameters)
- {
- OperatorType = type;
- Block = block;
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.Type == pa.Conditional) {
- Error_ConditionalAttributeIsNotValid ();
- return;
- }
-
- base.ApplyAttributeBuilder (a, cb, pa);
- }
-
- public override bool Define ()
- {
- const int RequiredModifiers = Modifiers.PUBLIC | Modifiers.STATIC;
- if ((ModFlags & RequiredModifiers) != RequiredModifiers){
- Report.Error (558, Location, "User-defined operator `{0}' must be declared static and public", GetSignatureForError ());
- }
-
- if (!base.Define ())
- return false;
-
- // imlicit and explicit operator of same types are not allowed
- if (OperatorType == OpType.Explicit)
- Parent.MemberCache.CheckExistingMembersOverloads (this, GetMetadataName (OpType.Implicit), Parameters);
- else if (OperatorType == OpType.Implicit)
- Parent.MemberCache.CheckExistingMembersOverloads (this, GetMetadataName (OpType.Explicit), Parameters);
-
- Type declaring_type = MethodData.DeclaringType;
- Type return_type = MemberType;
- Type first_arg_type = ParameterTypes [0];
-
- Type first_arg_type_unwrap = first_arg_type;
- if (TypeManager.IsNullableType (first_arg_type))
- first_arg_type_unwrap = TypeManager.TypeToCoreType (TypeManager.GetTypeArguments (first_arg_type) [0]);
-
- Type return_type_unwrap = return_type;
- if (TypeManager.IsNullableType (return_type))
- return_type_unwrap = TypeManager.TypeToCoreType (TypeManager.GetTypeArguments (return_type) [0]);
-
- if (TypeManager.IsDynamicType (return_type) || TypeManager.IsDynamicType (first_arg_type)) {
- Report.Error (1964, Location,
- "User-defined operator `{0}' cannot convert to or from the dynamic type",
- GetSignatureForError ());
-
- return false;
- }
-
- //
- // Rules for conversion operators
- //
- if (OperatorType == OpType.Implicit || OperatorType == OpType.Explicit) {
- if (first_arg_type_unwrap == return_type_unwrap && first_arg_type_unwrap == declaring_type){
- Report.Error (555, Location,
- "User-defined operator cannot take an object of the enclosing type and convert to an object of the enclosing type");
- return false;
- }
-
- Type conv_type;
- if (TypeManager.IsEqual (declaring_type, return_type) || declaring_type == return_type_unwrap) {
- conv_type = first_arg_type;
- } else if (TypeManager.IsEqual (declaring_type, first_arg_type) || declaring_type == first_arg_type_unwrap) {
- conv_type = return_type;
- } else {
- Report.Error (556, Location,
- "User-defined conversion must convert to or from the enclosing type");
- return false;
- }
-
- //
- // Because IsInterface and IsClass are not supported
- //
- if (!TypeManager.IsGenericParameter (conv_type)) {
- if (conv_type.IsInterface) {
- Report.Error (552, Location, "User-defined conversion `{0}' cannot convert to or from an interface type",
- GetSignatureForError ());
- return false;
- }
-
- if (conv_type.IsClass) {
- if (TypeManager.IsSubclassOf (declaring_type, conv_type)) {
- Report.Error (553, Location, "User-defined conversion `{0}' cannot convert to or from a base class",
- GetSignatureForError ());
- return false;
- }
-
- if (TypeManager.IsSubclassOf (conv_type, declaring_type)) {
- Report.Error (554, Location, "User-defined conversion `{0}' cannot convert to or from a derived class",
- GetSignatureForError ());
- return false;
- }
- }
- }
- } else if (OperatorType == OpType.LeftShift || OperatorType == OpType.RightShift) {
- if (first_arg_type != declaring_type || Parameters.Types [1] != TypeManager.int32_type) {
- Report.Error (564, Location, "Overloaded shift operator must have the type of the first operand be the containing type, and the type of the second operand must be int");
- return false;
- }
- } else if (Parameters.Count == 1) {
- // Checks for Unary operators
-
- if (OperatorType == OpType.Increment || OperatorType == OpType.Decrement) {
- if (return_type != declaring_type && !TypeManager.IsSubclassOf (return_type, declaring_type)) {
- Report.Error (448, Location,
- "The return type for ++ or -- operator must be the containing type or derived from the containing type");
- return false;
- }
- if (first_arg_type != declaring_type) {
- Report.Error (
- 559, Location, "The parameter type for ++ or -- operator must be the containing type");
- return false;
- }
- }
-
- if (!TypeManager.IsEqual (first_arg_type_unwrap, declaring_type)){
- Report.Error (562, Location,
- "The parameter type of a unary operator must be the containing type");
- return false;
- }
-
- if (OperatorType == OpType.True || OperatorType == OpType.False) {
- if (return_type != TypeManager.bool_type){
- Report.Error (
- 215, Location,
- "The return type of operator True or False " +
- "must be bool");
- return false;
- }
- }
-
- } else {
- // Checks for Binary operators
-
- if (first_arg_type != declaring_type &&
- Parameters.Types [1] != declaring_type){
- Report.Error (
- 563, Location,
- "One of the parameters of a binary operator must " +
- "be the containing type");
- return false;
- }
- }
-
- return true;
- }
-
- protected override bool ResolveMemberType ()
- {
- if (!base.ResolveMemberType ())
- return false;
-
- flags |= MethodAttributes.SpecialName | MethodAttributes.HideBySig;
- return true;
- }
-
- // Operator cannot be override
- protected override MethodInfo FindOutBaseMethod (ref Type base_ret_type)
- {
- return null;
- }
-
- public static string GetName (OpType ot)
- {
- return names [(int) ot] [0];
- }
-
- public static string GetName (string metadata_name)
- {
- for (int i = 0; i < names.Length; ++i) {
- if (names [i] [1] == metadata_name)
- return names [i] [0];
- }
- return null;
- }
-
- public static string GetMetadataName (OpType ot)
- {
- return names [(int) ot] [1];
- }
-
- public static string GetMetadataName (string name)
- {
- for (int i = 0; i < names.Length; ++i) {
- if (names [i] [0] == name)
- return names [i] [1];
- }
- return null;
- }
-
- public OpType GetMatchingOperator ()
- {
- switch (OperatorType) {
- case OpType.Equality:
- return OpType.Inequality;
- case OpType.Inequality:
- return OpType.Equality;
- case OpType.True:
- return OpType.False;
- case OpType.False:
- return OpType.True;
- case OpType.GreaterThan:
- return OpType.LessThan;
- case OpType.LessThan:
- return OpType.GreaterThan;
- case OpType.GreaterThanOrEqual:
- return OpType.LessThanOrEqual;
- case OpType.LessThanOrEqual:
- return OpType.GreaterThanOrEqual;
- default:
- return OpType.TOP;
- }
- }
-
- public override string GetSignatureForError ()
- {
- StringBuilder sb = new StringBuilder ();
- if (OperatorType == OpType.Implicit || OperatorType == OpType.Explicit) {
- sb.AppendFormat ("{0}.{1} operator {2}",
- Parent.GetSignatureForError (), GetName (OperatorType), type_name.GetSignatureForError ());
- }
- else {
- sb.AppendFormat ("{0}.operator {1}", Parent.GetSignatureForError (), GetName (OperatorType));
- }
-
- sb.Append (Parameters.GetSignatureForError ());
- return sb.ToString ();
- }
- }
-
- //
- // This is used to compare method signatures
- //
- struct MethodSignature {
- public string Name;
- public Type RetType;
- public Type [] Parameters;
-
- /// <summary>
- /// This delegate is used to extract methods which have the
- /// same signature as the argument
- /// </summary>
- public static MemberFilter method_signature_filter = new MemberFilter (MemberSignatureCompare);
-
- public MethodSignature (string name, Type ret_type, Type [] parameters)
- {
- Name = name;
- RetType = ret_type;
-
- if (parameters == null)
- Parameters = Type.EmptyTypes;
- else
- Parameters = parameters;
- }
-
- public override string ToString ()
- {
- string pars = "";
- if (Parameters.Length != 0){
- System.Text.StringBuilder sb = new System.Text.StringBuilder ();
- for (int i = 0; i < Parameters.Length; i++){
- sb.Append (Parameters [i]);
- if (i+1 < Parameters.Length)
- sb.Append (", ");
- }
- pars = sb.ToString ();
- }
-
- return String.Format ("{0} {1} ({2})", RetType, Name, pars);
- }
-
- public override int GetHashCode ()
- {
- return Name.GetHashCode ();
- }
-
- public override bool Equals (Object o)
- {
- MethodSignature other = (MethodSignature) o;
-
- if (other.Name != Name)
- return false;
-
- if (other.RetType != RetType)
- return false;
-
- if (Parameters == null){
- if (other.Parameters == null)
- return true;
- return false;
- }
-
- if (other.Parameters == null)
+ TypeExpr te = type_expr.ResolveAsTypeTerminal (this, false);
+ if (te == null)
return false;
- int c = Parameters.Length;
- if (other.Parameters.Length != c)
- return false;
-
- for (int i = 0; i < c; i++)
- if (other.Parameters [i] != Parameters [i])
- return false;
-
- return true;
- }
-
- static bool MemberSignatureCompare (MemberInfo m, object filter_criteria)
- {
- MethodSignature sig = (MethodSignature) filter_criteria;
-
- if (m.Name != sig.Name)
- return false;
-
- Type ReturnType;
- MethodInfo mi = m as MethodInfo;
- PropertyInfo pi = m as PropertyInfo;
-
- if (mi != null)
- ReturnType = mi.ReturnType;
- else if (pi != null)
- ReturnType = pi.PropertyType;
- else
- return false;
-
//
- // we use sig.RetType == null to mean `do not check the
- // method return value.
+ // Replace original type name, error reporting can use fully resolved name
//
- if (sig.RetType != null) {
- if (!TypeManager.IsEqual (ReturnType, sig.RetType))
- return false;
- }
-
- Type [] args;
- if (mi != null)
- args = TypeManager.GetParameterData (mi).Types;
- else
- args = TypeManager.GetParameterData (pi).Types;
- Type [] sigp = sig.Parameters;
-
- if (args.Length != sigp.Length)
- return false;
-
- for (int i = args.Length - 1; i >= 0; i--)
- if (!TypeManager.IsEqual (args [i], sigp [i]))
- return false;
+ type_expr = te;
+ member_type = te.Type;
return true;
}
}
projects / mono.git / blobdiff