//
-// class.cs: Class and Struct handlers
+// field.cs: All field handlers
//
// Authors: Miguel de Icaza (miguel@gnu.org)
// Martin Baulig (martin@ximian.com)
//
// Copyright 2001, 2002, 2003 Ximian, Inc (http://www.ximian.com)
// Copyright 2004-2008 Novell, Inc
+// Copyright 2011 Xamarin Inc
//
using System;
using System.Collections.Generic;
-using System.Reflection;
-using System.Reflection.Emit;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-using System.Security;
-using System.Security.Permissions;
-using System.Text;
-
-#if NET_2_1
-using XmlElement = System.Object;
-#else
-using System.Xml;
-#endif
-
-using Mono.CompilerServices.SymbolWriter;
-
-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
- {
- //
- // 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 : IMemberContext
- {
- TypeContainer tc;
-
- public BaseContext (TypeContainer tc)
- {
- this.tc = tc;
- }
-
- #region IMemberContext Members
-
- public CompilerContext Compiler {
- get { return tc.Compiler; }
- }
-
- public Type CurrentType {
- get { return tc.Parent.CurrentType; }
- }
-
- public TypeParameter[] CurrentTypeParameters {
- get { return tc.PartialContainer.CurrentTypeParameters; }
- }
-
- public TypeContainer CurrentTypeDefinition {
- get { return tc.Parent.CurrentTypeDefinition; }
- }
-
- public bool IsObsolete {
- get { return tc.IsObsolete; }
- }
-
- public bool IsUnsafe {
- get { return tc.IsUnsafe; }
- }
-
- public bool IsStatic {
- get { return tc.IsStatic; }
- }
-
- public string GetSignatureForError ()
- {
- throw new NotImplementedException ();
- }
-
- public ExtensionMethodGroupExpr LookupExtensionMethod (Type extensionType, string name, Location loc)
- {
- return null;
- }
-
- public FullNamedExpression LookupNamespaceAlias (string name)
- {
- return tc.Parent.LookupNamespaceAlias (name);
- }
-
- public FullNamedExpression LookupNamespaceOrType (string name, Location loc, bool ignore_cs0104)
- {
- 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, loc, ignore_cs0104);
- }
-
- #endregion
- }
-
- [Flags]
- enum CachedMethods
- {
- Equals = 1,
- GetHashCode = 1 << 1,
- HasStaticFieldInitializer = 1 << 2
- }
-
-
- // Whether this is a struct, class or interface
- public readonly Kind Kind;
-
- // Holds a list of classes and structures
- protected List<TypeContainer> types;
-
- List<MemberCore> ordered_explicit_member_list;
- List<MemberCore> ordered_member_list;
-
- // Holds the list of properties
- List<MemberCore> properties;
-
- // Holds the list of delegates
- List<TypeContainer> delegates;
-
- // Holds the list of constructors
- protected List<MemberCore> instance_constructors;
-
- // Holds the list of fields
- protected List<MemberCore> fields;
-
- // Holds a list of fields that have initializers
- protected List<FieldInitializer> initialized_fields;
-
- // Holds a list of static fields that have initializers
- protected List<FieldInitializer> initialized_static_fields;
-
- // Holds the list of constants
- protected List<MemberCore> constants;
-
- // Holds the methods.
- List<MemberCore> methods;
-
- // Holds the events
- protected List<MemberCore> events;
-
- // Holds the indexers
- List<MemberCore> indexers;
-
- // Holds the operators
- List<MemberCore> operators;
-
- // Holds the compiler generated classes
- List<CompilerGeneratedClass> compiler_generated;
-
- //
- // Pointers to the default constructor and the default static constructor
- //
- protected Constructor default_constructor;
- protected Constructor default_static_constructor;
-
- //
- // Points to the first non-static field added to the container.
- //
- // This is an arbitrary choice. We are interested in looking at _some_ non-static field,
- // and the first one's as good as any.
- //
- FieldBase first_nonstatic_field = null;
-
- //
- // 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 List<FullNamedExpression> type_bases;
-
- protected bool members_defined;
- bool members_defined_ok;
-
- // The interfaces we implement.
- protected Type[] ifaces;
-
- // The base member cache and our member cache
- MemberCache base_cache;
- protected MemberCache member_cache;
-
- public const string DefaultIndexerName = "Item";
-
- private bool seen_normal_indexers = false;
- private string indexer_name = DefaultIndexerName;
- protected bool requires_delayed_unmanagedtype_check;
-
- private CachedMethods cached_method;
-
- List<TypeContainer> partial_parts;
-
- /// <remarks>
- /// The pending methods that need to be implemented
- // (interfaces or abstract methods)
- /// </remarks>
- PendingImplementation pending;
-
- public TypeContainer (NamespaceEntry ns, DeclSpace parent, MemberName name,
- Attributes attrs, Kind kind)
- : base (ns, parent, name, attrs)
- {
- if (parent != null && parent.NamespaceEntry != ns)
- throw new InternalErrorException ("A nested type should be in the same NamespaceEntry as its enclosing class");
-
- this.Kind = kind;
- this.PartialContainer = this;
- }
-
- public bool AddMember (MemberCore symbol)
- {
- return AddToContainer (symbol, symbol.MemberName.Basename);
- }
-
- protected virtual bool AddMemberType (DeclSpace ds)
- {
- return AddToContainer (ds, ds.Basename);
- }
-
- protected virtual void RemoveMemberType (DeclSpace ds)
- {
- RemoveFromContainer (ds.Basename);
- }
-
- public void AddConstant (Const constant)
- {
- if (!AddMember (constant))
- return;
-
- if (constants == null)
- constants = new List<MemberCore> ();
-
- constants.Add (constant);
- }
-
- public TypeContainer AddTypeContainer (TypeContainer tc)
- {
- if (!AddMemberType (tc))
- return tc;
-
- if (types == null)
- types = new List<TypeContainer> ();
-
- types.Add (tc);
- return tc;
- }
-
- public virtual TypeContainer AddPartial (TypeContainer next_part)
- {
- return AddPartial (next_part, next_part.Basename);
- }
-
- protected TypeContainer AddPartial (TypeContainer next_part, string name)
- {
- next_part.ModFlags |= Modifiers.PARTIAL;
- TypeContainer tc = GetDefinition (name) as TypeContainer;
- if (tc == null)
- return AddTypeContainer (next_part);
-
- if ((tc.ModFlags & Modifiers.PARTIAL) == 0) {
- Report.SymbolRelatedToPreviousError (next_part);
- Error_MissingPartialModifier (tc);
- }
-
- if (tc.Kind != next_part.Kind) {
- Report.SymbolRelatedToPreviousError (tc);
- Report.Error (261, next_part.Location,
- "Partial declarations of `{0}' must be all classes, all structs or all interfaces",
- next_part.GetSignatureForError ());
- }
-
- 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);
- Report.Error (262, next_part.Location,
- "Partial declarations of `{0}' have conflicting accessibility modifiers",
- next_part.GetSignatureForError ());
- }
-
- if (tc.partial_parts == null)
- 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.AccessibilityMask);
- } else if ((tc.ModFlags & Modifiers.DEFAULT_ACCESS_MODIFER) != 0) {
- tc.ModFlags &= ~(Modifiers.DEFAULT_ACCESS_MODIFER | Modifiers.AccessibilityMask);
- tc.ModFlags |= next_part.ModFlags;
- } else {
- tc.ModFlags |= next_part.ModFlags;
- }
-
- if (next_part.attributes != null) {
- if (tc.attributes == null)
- tc.attributes = next_part.attributes;
- else
- tc.attributes.AddAttributes (next_part.attributes.Attrs);
- }
-
- next_part.PartialContainer = tc;
- tc.partial_parts.Add (next_part);
- return tc;
- }
-
- public virtual void RemoveTypeContainer (TypeContainer next_part)
- {
- if (types != null)
- types.Remove (next_part);
- RemoveMemberType (next_part);
- }
-
- public void AddDelegate (Delegate d)
- {
- if (!AddMemberType (d))
- return;
-
- if (delegates == null)
- delegates = new List<TypeContainer> ();
-
- delegates.Add (d);
- }
-
- private void AddMemberToList (MemberCore mc, List<MemberCore> alist, bool isexplicit)
- {
- if (ordered_explicit_member_list == null) {
- ordered_explicit_member_list = new List<MemberCore> ();
- ordered_member_list = new List<MemberCore> ();
- }
-
- if (isexplicit) {
- if (Kind == Kind.Interface) {
- Report.Error (541, mc.Location,
- "`{0}': explicit interface declaration can only be declared in a class or struct",
- mc.GetSignatureForError ());
- }
-
- ordered_explicit_member_list.Add (mc);
- alist.Insert (0, mc);
- } else {
- ordered_member_list.Add (mc);
- alist.Add (mc);
- }
-
- }
-
- public void AddMethod (MethodOrOperator method)
- {
- if (!AddToContainer (method, method.MemberName.Basename))
- return;
-
- if (methods == null)
- methods = new List<MemberCore> ();
-
- if (method.MemberName.Left != null)
- AddMemberToList (method, methods, true);
- else
- AddMemberToList (method, methods, false);
- }
-
- public void AddConstructor (Constructor c)
- {
- bool is_static = (c.ModFlags & Modifiers.STATIC) != 0;
- if (!AddToContainer (c, is_static ?
- ConstructorBuilder.ConstructorName : ConstructorBuilder.TypeConstructorName))
- return;
-
- if (is_static && c.Parameters.IsEmpty){
- if (default_static_constructor != null) {
- Report.SymbolRelatedToPreviousError (default_static_constructor);
- Report.Error (111, c.Location,
- "A member `{0}' is already defined. Rename this member or use different parameter types",
- c.GetSignatureForError ());
- return;
- }
-
- default_static_constructor = c;
- } else {
- if (c.Parameters.IsEmpty)
- default_constructor = c;
-
- if (instance_constructors == null)
- instance_constructors = new List<MemberCore> ();
-
- instance_constructors.Add (c);
- }
- }
-
- public bool AddField (FieldBase field)
- {
- if (!AddMember (field))
- return false;
-
- if (fields == null)
- fields = new List<MemberCore> ();
-
- fields.Add (field);
-
- if ((field.ModFlags & Modifiers.STATIC) != 0)
- return true;
-
- if (first_nonstatic_field == null) {
- first_nonstatic_field = field;
- return true;
- }
-
- if (Kind == Kind.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}'",
- field.GetSignatureForError (), first_nonstatic_field.GetSignatureForError ());
- }
- return true;
- }
-
- public void AddProperty (Property prop)
- {
- if (!AddMember (prop) ||
- !AddMember (prop.Get) || !AddMember (prop.Set))
- return;
-
- if (properties == null)
- properties = new List<MemberCore> ();
-
- if (prop.MemberName.Left != null)
- AddMemberToList (prop, properties, true);
- else
- AddMemberToList (prop, properties, false);
- }
-
- public void AddEvent (Event e)
- {
- if (!AddMember (e))
- return;
-
- if (e is EventProperty) {
- if (!AddMember (e.Add))
- return;
-
- if (!AddMember (e.Remove))
- return;
- }
-
- if (events == null)
- events = new List<MemberCore> ();
-
- events.Add (e);
- }
-
- /// <summary>
- /// Indexer has special handling in constrast to other AddXXX because the name can be driven by IndexerNameAttribute
- /// </summary>
- public void AddIndexer (Indexer i)
- {
- if (indexers == null)
- indexers = new List<MemberCore> ();
-
- if (i.IsExplicitImpl)
- AddMemberToList (i, indexers, true);
- else
- AddMemberToList (i, indexers, false);
- }
-
- public void AddOperator (Operator op)
- {
- if (!AddMember (op))
- return;
-
- if (operators == null)
- operators = new List<MemberCore> ();
-
- operators.Add (op);
- }
-
- public void AddCompilerGeneratedClass (CompilerGeneratedClass c)
- {
- Report.Debug (64, "ADD COMPILER GENERATED CLASS", this, c);
-
- if (compiler_generated == null)
- compiler_generated = new List<CompilerGeneratedClass> ();
-
- compiler_generated.Add (c);
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.Type == pa.DefaultMember) {
- if (Indexers != null) {
- Report.Error (646, a.Location, "Cannot specify the `DefaultMember' attribute on type containing an indexer");
- return;
- }
- }
-
- base.ApplyAttributeBuilder (a, cb, pa);
- }
-
- public override AttributeTargets AttributeTargets {
- get {
- throw new NotSupportedException ();
- }
- }
-
- public IList<TypeContainer> Types {
- get {
- return types;
- }
- }
-
- public IList<MemberCore> Methods {
- get {
- return methods;
- }
- }
-
- public IList<MemberCore> Constants {
- get {
- return constants;
- }
- }
-
- protected virtual Type BaseType {
- get {
- return TypeBuilder.BaseType;
- }
- }
-
- public IList<MemberCore> Fields {
- get {
- return fields;
- }
- }
-
- public IList<MemberCore> InstanceConstructors {
- get {
- return instance_constructors;
- }
- }
-
- public IList<MemberCore> Properties {
- get {
- return properties;
- }
- }
-
- public IList<MemberCore> Events {
- get {
- return events;
- }
- }
-
- public IList<MemberCore> Indexers {
- get {
- return indexers;
- }
- }
-
- public IList<MemberCore> Operators {
- get {
- return operators;
- }
- }
-
- public IList<TypeContainer> Delegates {
- get {
- return delegates;
- }
- }
-
- protected override TypeAttributes TypeAttr {
- get {
- return ModifiersExtensions.TypeAttr (ModFlags, IsTopLevel) | base.TypeAttr;
- }
- }
-
- public string IndexerName {
- get {
- return indexers == null ? DefaultIndexerName : indexer_name;
- }
- }
-
- public bool IsComImport {
- get {
- if (OptAttributes == null)
- return false;
-
- return OptAttributes.Contains (PredefinedAttributes.Get.ComImport);
- }
- }
-
- 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 List<FieldInitializer> (4);
- }
-
- initialized_static_fields.Add (expression);
- } else {
- if (initialized_fields == null)
- initialized_fields = new List<FieldInitializer> (4);
-
- initialized_fields.Add (expression);
- }
- }
-
- public void ResolveFieldInitializers (BlockContext ec)
- {
- if (partial_parts != null) {
- foreach (TypeContainer part in partial_parts) {
- part.DoResolveFieldInitializers (ec);
- }
- }
- DoResolveFieldInitializers (ec);
- }
-
- void DoResolveFieldInitializers (BlockContext ec)
- {
- if (ec.IsStatic) {
- if (initialized_static_fields == null)
- return;
-
- bool has_complex_initializer = !RootContext.Optimize;
- 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];
- ExpressionStatement s = fi.ResolveStatement (ec);
- if (s == null) {
- s = EmptyExpressionStatement.Instance;
- } else if (fi.IsComplexInitializer) {
- has_complex_initializer |= true;
- }
-
- init [i] = s;
- }
-
- for (i = 0; i < initialized_static_fields.Count; ++i) {
- FieldInitializer fi = (FieldInitializer) initialized_static_fields [i];
- //
- // Need special check to not optimize code like this
- // static int a = b = 5;
- // static int b = 0;
- //
- if (!has_complex_initializer && fi.IsDefaultInitializer)
- continue;
-
- ec.CurrentBlock.AddScopeStatement (new StatementExpression (init [i]));
- }
-
- return;
- }
-
- if (initialized_fields == null)
- return;
-
- for (int i = 0; i < initialized_fields.Count; ++i) {
- FieldInitializer fi = (FieldInitializer) initialized_fields [i];
- ExpressionStatement s = fi.ResolveStatement (ec);
- if (s == null)
- continue;
-
- //
- // Field is re-initialized to its default value => removed
- //
- if (fi.IsDefaultInitializer && RootContext.Optimize)
- continue;
-
- ec.CurrentBlock.AddScopeStatement (new StatementExpression (s));
- }
- }
-
- public override string DocComment {
- get {
- return comment;
- }
- set {
- if (value == null)
- return;
-
- comment += value;
- }
- }
-
- public PendingImplementation PendingImplementations {
- get { return pending; }
- }
-
- public override bool GetClsCompliantAttributeValue ()
- {
- if (PartialContainer != this)
- return PartialContainer.GetClsCompliantAttributeValue ();
-
- return base.GetClsCompliantAttributeValue ();
- }
-
- 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'
- ((TypeContainer) part).type_bases = bases;
- }
-
- /// <summary>
- /// This function computes the Base class and also the
- /// list of interfaces that the class or struct @c implements.
- ///
- /// The return value is an array (might be null) of
- /// interfaces implemented (as Types).
- ///
- /// The @base_class argument is set to the base object or null
- /// if this is `System.Object'.
- /// </summary>
- protected virtual TypeExpr[] ResolveBaseTypes (out TypeExpr base_class)
- {
- base_class = null;
- if (type_bases == null)
- return null;
-
- int count = type_bases.Count;
- TypeExpr [] ifaces = null;
- IMemberContext base_context = new BaseContext (this);
- for (int i = 0, j = 0; i < count; i++){
- FullNamedExpression fne = (FullNamedExpression) 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);
- if (fne_resolved == null)
- continue;
-
- if (i == 0 && Kind == Kind.Class && !fne_resolved.Type.IsInterface) {
- if (fne_resolved is DynamicTypeExpr)
- Report.Error (1965, Location, "Class `{0}' cannot derive from the dynamic type",
- GetSignatureForError ());
- else
- base_class = fne_resolved;
- continue;
- }
-
- if (ifaces == null)
- ifaces = new TypeExpr [count - i];
-
- if (fne_resolved.Type.IsInterface) {
- for (int ii = 0; ii < j; ++ii) {
- if (TypeManager.IsEqual (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)) {
- 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) {
- 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}')",
- GetSignatureForError (), base_class.GetSignatureForError (), fne_resolved.GetSignatureForError ());
- else {
- Report.Error (1722, fne.Location, "`{0}': Base class `{1}' must be specified as first",
- GetSignatureForError (), fne_resolved.GetSignatureForError ());
- }
- }
-
- ifaces [j++] = fne_resolved;
- }
-
- return ifaces;
- }
-
- TypeExpr[] GetNormalPartialBases (ref TypeExpr base_class)
- {
- 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_ifaces == null)
- continue;
-
- foreach (TypeExpr iface in new_ifaces) {
- if (ifaces.Contains (iface))
- continue;
-
- ifaces.Add (iface);
- }
- }
-
- if (ifaces.Count == 0)
- return null;
-
- return ifaces.ToArray ();
- }
-
- //
- // 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;
- 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 ii = 0; ii < operators.Length; ++ii) {
- Operator o_b = (Operator) 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 < operators.Length; ++i) {
- if (operators[i] == null || has_pair[i])
- continue;
-
- 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 ()));
- }
-
- 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 ());
-
- if (Methods == null || !HasGetHashCode)
- Report.Warning (661, 2, Location, "`{0}' defines operator == or operator != but does not override Object.GetHashCode()",
- GetSignatureForError ());
- }
- }
-
- bool CheckGenericInterfaces (Type[] ifaces)
- {
- var already_checked = new List<Type> ();
-
- for (int i = 0; i < ifaces.Length; i++) {
- Type iface = ifaces [i];
- foreach (Type t in already_checked) {
- if (iface == t)
- continue;
-
- Type[] inferred = new Type [CountTypeParameters];
- if (!TypeManager.MayBecomeEqualGenericInstances (iface, t, inferred, null))
- 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;
- }
-
- already_checked.Add (iface);
- }
-
- return true;
- }
-
- bool error = false;
-
- 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;
- else if (Kind == Kind.Delegate)
- default_parent = TypeManager.multicast_delegate_type;
-
- //
- // Sets .size to 1 for structs with no instance fields
- //
- int type_size = Kind == Kind.Struct && first_nonstatic_field == null ? 1 : 0;
-
- if (IsTopLevel){
- if (GlobalRootNamespace.Instance.IsNamespace (Name)) {
- Report.Error (519, Location, "`{0}' clashes with a predefined namespace", Name);
- return false;
- }
-
- ModuleBuilder builder = Module.Compiled.Builder;
- TypeBuilder = builder.DefineType (
- Name, TypeAttr, default_parent, 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;
- }
-
- TypeManager.AddUserType (this);
-
- if (IsGeneric) {
- string[] param_names = new string [TypeParameters.Length];
- for (int i = 0; i < TypeParameters.Length; i++)
- param_names [i] = TypeParameters [i].Name;
-
- GenericTypeParameterBuilder[] gen_params = TypeBuilder.DefineGenericParameters (param_names);
-
- int offset = CountTypeParameters;
- if (CurrentTypeParameters != null)
- offset -= CurrentTypeParameters.Length;
-
- if (offset > 0) {
- nested_gen_params = new GenericTypeParameterBuilder [offset];
- Array.Copy (gen_params, nested_gen_params, offset);
- }
-
- for (int i = offset; i < gen_params.Length; i++)
- CurrentTypeParameters [i - offset].Define (gen_params [i]);
- }
-
- return true;
- }
-
- bool DefineBaseTypes ()
- {
- iface_exprs = ResolveBaseTypes (out base_type);
- if (partial_parts != null) {
- iface_exprs = GetNormalPartialBases (ref base_type);
- }
-
- //
- // GetClassBases calls ResolveBaseTypeExpr() on the various type expressions involved,
- // which in turn should have called DefineType()s on base types if necessary.
- //
- // 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) && !(this is Delegate))
- RootContext.RegisterOrder (this);
-
- if (!CheckRecursiveDefinition (this))
- return false;
-
- if (base_type != null && base_type.Type != null) {
- TypeBuilder.SetParent (base_type.Type);
- }
-
- // add interfaces that were not added at type creation
- if (iface_exprs != null) {
- ifaces = TypeManager.ExpandInterfaces (iface_exprs);
- if (ifaces == null)
- return false;
-
- foreach (Type itype in ifaces)
- TypeBuilder.AddInterfaceImplementation (itype);
-
- if (!CheckGenericInterfaces (ifaces))
- return false;
-
- TypeManager.RegisterBuilder (TypeBuilder, ifaces);
- }
-
- return true;
- }
-
- //
- // 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.TypeBuilder = TypeBuilder;
- }
-
- if (Types != null) {
- foreach (TypeContainer tc in Types) {
- if (tc.CreateType () == null) {
- error = true;
- return null;
- }
- }
- }
-
- return TypeBuilder;
- }
-
- bool type_defined;
-
- public override TypeBuilder DefineType ()
- {
- if (error)
- return null;
- if (type_defined)
- return TypeBuilder;
-
- type_defined = true;
-
- if (CreateType () == null) {
- error = true;
- return null;
- }
-
- if (!DefineBaseTypes ()) {
- error = true;
- return null;
- }
-
- if (!DefineNestedTypes ()) {
- error = true;
- return null;
- }
-
- return TypeBuilder;
- }
-
- public override void SetParameterInfo (List<Constraints> constraints_list)
- {
- base.SetParameterInfo (constraints_list);
-
- if (!is_generic || PartialContainer == this)
- return;
-
- TypeParameter[] tc_names = PartialContainer.TypeParameters;
- for (int i = 0; i < tc_names.Length; ++i) {
- if (tc_names [i].Name != type_params [i].Name) {
- Report.SymbolRelatedToPreviousError (PartialContainer.Location, "");
- Report.Error (264, Location, "Partial declarations of `{0}' must have the same type parameter names in the same order",
- 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;
- }
- }
- }
-
- void UpdateTypeParameterConstraints (TypeContainer part)
- {
- TypeParameter[] current_params = type_params;
- for (int i = 0; i < current_params.Length; i++) {
- Constraints c = part.type_params [i].Constraints;
- if (c == null)
- continue;
-
- if (current_params [i].UpdateConstraints (part, c))
- continue;
-
- Report.SymbolRelatedToPreviousError (Location, "");
- Report.Error (265, part.Location,
- "Partial declarations of `{0}' have inconsistent constraints for type parameter `{1}'",
- GetSignatureForError (), current_params [i].GetSignatureForError ());
- }
- }
-
- public bool ResolveType ()
- {
- if (!DoResolveType ())
- return false;
-
- if (compiler_generated != null) {
- foreach (CompilerGeneratedClass c in compiler_generated)
- if (!c.ResolveType ())
- return false;
- }
-
- return true;
- }
-
- protected virtual bool DoResolveType ()
- {
- if (!IsGeneric)
- return true;
-
- if (PartialContainer != this)
- throw new InternalErrorException ();
-
- TypeExpr current_type = null;
- if (CurrentTypeParameters != null) {
- foreach (TypeParameter type_param in CurrentTypeParameters) {
- if (!type_param.Resolve (this)) {
- error = true;
- return false;
- }
- }
-
- 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;
- }
-
- protected virtual bool DefineNestedTypes ()
- {
- if (Types != null) {
- foreach (TypeContainer tc in Types)
- if (tc.DefineType () == null)
- 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)
- {
- 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;
- }
-
- 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 (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;
- }
- }
-
- if (!IsTopLevel && !Parent.PartialContainer.CheckRecursiveDefinition (this))
- return false;
-
- InTransit = null;
- return true;
- }
-
- public override TypeParameter[] CurrentTypeParameters {
- get {
- return PartialContainer.type_params;
- }
- }
-
- /// <summary>
- /// Populates our TypeBuilder with fields and methods
- /// </summary>
- public sealed override bool Define ()
- {
- if (members_defined)
- return members_defined_ok;
-
- members_defined_ok = DoDefineMembers ();
- members_defined = true;
-
- return members_defined_ok;
- }
-
- protected virtual bool DoDefineMembers ()
- {
- if (iface_exprs != null) {
- foreach (TypeExpr iface in iface_exprs) {
- ObsoleteAttribute oa = AttributeTester.GetObsoleteAttribute (iface.Type);
- 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))
- return false;
-
- 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 && !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);
- }
-
- if (types != null)
- foreach (TypeContainer tc in types)
- member_cache.AddNestedType (tc);
-
- if (delegates != null)
- foreach (Delegate d in delegates)
- member_cache.AddNestedType (d);
-
- if (partial_parts != null) {
- foreach (TypeContainer part in partial_parts)
- part.member_cache = member_cache;
- }
-
- if (!IsTopLevel) {
- MemberInfo conflict_symbol = Parent.PartialContainer.FindBaseMemberWithSameName (Basename, 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 ());
- } else {
- if ((ModFlags & Modifiers.NEW) == 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));
- }
- }
- }
-
- DefineContainerMembers (constants);
- DefineContainerMembers (fields);
-
- if (Kind == Kind.Struct || Kind == Kind.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 (Compiler, f.MemberType, f.Location);
- }
- }
- }
-
- //
- // Constructors are not in the defined_names array
- //
- DefineContainerMembers (instance_constructors);
-
- DefineContainerMembers (events);
- DefineContainerMembers (ordered_explicit_member_list);
- DefineContainerMembers (ordered_member_list);
-
- if (operators != null) {
- DefineContainerMembers (operators);
- CheckPairedOperators ();
- }
-
- DefineContainerMembers (delegates);
-
- 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 (System.Collections.IList mcal) // IList<MemberCore>
- {
- if (mcal != null) {
- foreach (MemberCore mc in mcal) {
- try {
- mc.Define ();
- } catch (Exception e) {
- throw new InternalErrorException (mc, e);
- }
- }
- }
- }
-
- protected virtual void ComputeIndexerName ()
- {
- if (indexers == null)
- return;
-
- string class_indexer_name = null;
-
- //
- // If there's both an explicit and an implicit interface implementation, the
- // explicit one actually implements the interface while the other one is just
- // a normal indexer. See bug #37714.
- //
-
- // Invariant maintained by AddIndexer(): All explicit interface indexers precede normal indexers
- foreach (Indexer i in indexers) {
- if (i.InterfaceType != null) {
- if (seen_normal_indexers)
- throw new Exception ("Internal Error: 'Indexers' array not sorted properly.");
- continue;
- }
-
- seen_normal_indexers = true;
-
- if (class_indexer_name == null) {
- class_indexer_name = i.ShortName;
- continue;
- }
-
- if (i.ShortName != class_indexer_name)
- Report.Error (668, i.Location, "Two indexers have different names; the IndexerName attribute must be used with the same name on every indexer within a type");
- }
-
- if (class_indexer_name != null)
- indexer_name = class_indexer_name;
- }
-
- protected virtual void EmitIndexerName ()
- {
- if (!seen_normal_indexers)
- return;
-
- PredefinedAttribute pa = PredefinedAttributes.Get.DefaultMember;
- if (pa.Constructor == null &&
- !pa.ResolveConstructor (Location, TypeManager.string_type))
- return;
-
- CustomAttributeBuilder cb = new CustomAttributeBuilder (pa.Constructor, new string [] { IndexerName });
- TypeBuilder.SetCustomAttribute (cb);
- }
-
- protected virtual void CheckEqualsAndGetHashCode ()
- {
- if (methods == null)
- return;
-
- if (HasEquals && !HasGetHashCode) {
- Report.Warning (659, 3, this.Location, "`{0}' overrides Object.Equals(object) but does not override Object.GetHashCode()", this.GetSignatureForError ());
- }
- }
-
- 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 ()
- {
- var members = new List<MethodInfo> ();
-
- 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);
- }
- }
-
- return members.ToArray ();
- }
-
- // Indicated whether container has StructLayout attribute set Explicit
- public bool HasExplicitLayout {
- get { return (caching_flags & Flags.HasExplicitLayout) != 0; }
- set { caching_flags |= Flags.HasExplicitLayout; }
- }
-
- public bool HasStructLayout {
- get { return (caching_flags & Flags.HasStructLayout) != 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");
-
- var lists = new[] { types, delegates };
-
- for (int j = 0; j < lists.Length; ++j) {
- var list = lists [j];
- if (list == null)
- continue;
-
- int len = list.Count;
- for (int i = 0; i < len; ++i) {
- var ds = list [i];
- if (ds.Basename == name) {
- return ds.DefineType ();
- }
- }
- }
-
- return null;
- }
-
- private void FindMembers_NestedTypes (Modifiers modflags,
- BindingFlags bf, MemberFilter filter, object criteria,
- ref List<MemberInfo> members)
- {
- var lists = new[] { types, delegates };
-
- for (int j = 0; j < lists.Length; ++j) {
- var list = lists [j];
- if (list == null)
- continue;
-
- int len = list.Count;
- for (int i = 0; i < len; i++) {
- var ds = 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 List<MemberInfo> ();
-
- 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)
- {
- List<MemberInfo> members = null;
-
- Modifiers modflags = 0;
- if ((bf & BindingFlags.Public) != 0)
- modflags |= Modifiers.PUBLIC | Modifiers.PROTECTED |
- Modifiers.INTERNAL;
- if ((bf & BindingFlags.NonPublic) != 0)
- modflags |= Modifiers.PRIVATE;
-
- Modifiers 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 List<MemberInfo> ();
-
- 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) {
- // Define parent and not member, otherwise membercache can be null
- if (con.Parent.Define ())
- fb = con.FieldBuilder;
- }
- if (fb != null && filter (fb, criteria) == true) {
- if (members == null)
- members = new List<MemberInfo> ();
-
- 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 List<MemberInfo> ();
-
- 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 List<MemberInfo> ();
-
- 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 List<MemberInfo> ();
-
- members.Add (b);
- }
-
- b = e.RemoveBuilder;
- if (b != null && filter (b, criteria)) {
- if (members == null)
- members = new List<MemberInfo> ();
-
- 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 List<MemberInfo> ();
-
- members.Add (b);
- }
-
- b = p.SetBuilder;
- if (b != null && filter (b, criteria) == true) {
- if (members == null)
- members = new List<MemberInfo> ();
-
- 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 List<MemberInfo> ();
-
- members.Add (b);
- }
-
- b = ix.SetBuilder;
- if (b != null && filter (b, criteria) == true) {
- if (members == null)
- members = new List<MemberInfo> ();
-
- 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 List<MemberInfo> ();
-
- 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 List<MemberInfo> ();
-
- 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 List<MemberInfo> ();
-
- 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 List<MemberInfo> ();
-
- 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 List<MemberInfo> ();
-
- 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 List<MemberInfo> ();
-
- 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;
- }
-
- void CheckMemberUsage (List<MemberCore> al, string member_type)
- {
- if (al == null)
- return;
-
- foreach (MemberCore mc in al) {
- if ((mc.ModFlags & Modifiers.AccessibilityMask) != 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.AccessibilityMask) != Modifiers.PRIVATE) {
- if (is_type_exposed)
- continue;
-
- f.SetMemberIsUsed ();
- }
-
- 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 {
- Report.Warning (414, 3, f.Location, "The private field `{0}' is assigned but its value is never used",
- f.GetSignatureForError ());
- }
- continue;
- }
-
- //
- // Only report 649 on level 4
- //
- if (Report.WarningLevel < 4)
- continue;
-
- if ((f.caching_flags & Flags.IsAssigned) != 0)
- continue;
-
- //
- // Don't be pendatic over serializable attributes
- //
- if (f.OptAttributes != null || PartialContainer.HasStructLayout)
- continue;
-
- Constant c = New.Constantify (f.MemberType);
- Report.Warning (649, 4, f.Location, "Field `{0}' is never assigned to, and will always have its default value `{1}'",
- f.GetSignatureForError (), c == null ? "null" : c.AsString ());
- }
- }
- }
- }
-
- // TODO: move to ClassOrStruct
- void EmitConstructors ()
- {
- if (instance_constructors == null)
- return;
-
- if (TypeBuilder.IsSubclassOf (TypeManager.attribute_type) && RootContext.VerifyClsCompliance && IsClsComplianceRequired ()) {
- bool has_compliant_args = false;
-
- foreach (Constructor c in instance_constructors) {
- try {
- c.Emit ();
- }
- catch (Exception e) {
- throw new InternalErrorException (c, e);
- }
-
- if (has_compliant_args)
- continue;
-
- has_compliant_args = c.HasCompliantArgs;
- }
- if (!has_compliant_args)
- Report.Warning (3015, 1, Location, "`{0}' has no accessible constructors which use only CLS-compliant types", GetSignatureForError ());
- } else {
- foreach (Constructor c in instance_constructors) {
- try {
- c.Emit ();
- }
- catch (Exception e) {
- throw new InternalErrorException (c, e);
- }
- }
- }
- }
-
- /// <summary>
- /// Emits the code, this step is performed after all
- /// the types, enumerations, constructors
- /// </summary>
- public virtual void EmitType ()
- {
- if (OptAttributes != null)
- OptAttributes.Emit ();
-
- Emit ();
-
- EmitConstructors ();
-
- // Can not continue if constants are broken
- EmitConstants ();
- if (Report.Errors > 0)
- return;
-
- if (default_static_constructor != null)
- default_static_constructor.Emit ();
-
- if (operators != null)
- foreach (Operator o in operators)
- o.Emit ();
-
- if (properties != null)
- foreach (Property p in properties)
- p.Emit ();
-
- if (indexers != null) {
- foreach (Indexer indx in indexers)
- indx.Emit ();
- EmitIndexerName ();
- }
-
- if (events != null){
- foreach (Event e in Events)
- e.Emit ();
- }
-
- if (methods != null) {
- for (int i = 0; i < methods.Count; ++i)
- ((MethodOrOperator) methods [i]).Emit ();
- }
-
- if (fields != null)
- foreach (FieldBase f in fields)
- f.Emit ();
-
- if (delegates != null) {
- foreach (Delegate d in Delegates) {
- d.Emit ();
- }
- }
-
- if (pending != null)
- 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 ();
- }
- }
-
- public override void CloseType ()
- {
- if ((caching_flags & Flags.CloseTypeCreated) != 0)
- return;
-
- try {
- caching_flags |= Flags.CloseTypeCreated;
- TypeBuilder.CreateType ();
- } catch (TypeLoadException){
- //
- // This is fine, the code still created the type
- //
-// Report.Warning (-20, "Exception while creating class: " + TypeBuilder.Name);
-// Console.WriteLine (e.Message);
- } catch (Exception e) {
- throw new InternalErrorException (this, e);
- }
-
- 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 ();
- }
-
- 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;
- constants = null;
- ordered_explicit_member_list = null;
- ordered_member_list = null;
- methods = null;
- events = null;
- indexers = null;
- operators = null;
- compiler_generated = null;
- default_constructor = 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).
- //
- public bool MethodModifiersValid (MemberCore mc)
- {
- const Modifiers vao = (Modifiers.VIRTUAL | Modifiers.ABSTRACT | Modifiers.OVERRIDE);
- const Modifiers va = (Modifiers.VIRTUAL | Modifiers.ABSTRACT);
- const Modifiers nv = (Modifiers.NEW | Modifiers.VIRTUAL);
- bool ok = true;
- var flags = mc.ModFlags;
-
- //
- // At most one of static, virtual or override
- //
- if ((flags & Modifiers.STATIC) != 0){
- if ((flags & vao) != 0){
- Report.Error (112, mc.Location, "A static member `{0}' cannot be marked as override, virtual or abstract",
- mc.GetSignatureForError ());
- ok = false;
- }
- }
-
- if (Kind == Kind.Struct){
- if ((flags & va) != 0){
- ModifiersExtensions.Error_InvalidModifier (mc.Location, "virtual or abstract", Report);
- 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 ());
- ok = false;
- }
-
- //
- // If the declaration includes the abstract modifier, then the
- // declaration does not include static, virtual or extern
- //
- if ((flags & Modifiers.ABSTRACT) != 0){
- if ((flags & Modifiers.EXTERN) != 0){
- Report.Error (
- 180, mc.Location, "`{0}' cannot be both extern and abstract", mc.GetSignatureForError ());
- ok = false;
- }
-
- if ((flags & Modifiers.SEALED) != 0) {
- Report.Error (502, mc.Location, "`{0}' cannot be both abstract and sealed", mc.GetSignatureForError ());
- ok = false;
- }
-
- if ((flags & Modifiers.VIRTUAL) != 0){
- Report.Error (503, mc.Location, "The abstract method `{0}' cannot be marked virtual", mc.GetSignatureForError ());
- ok = false;
- }
-
- if ((ModFlags & Modifiers.ABSTRACT) == 0){
- Report.SymbolRelatedToPreviousError (this);
- Report.Error (513, mc.Location, "`{0}' is abstract but it is declared in the non-abstract class `{1}'",
- mc.GetSignatureForError (), GetSignatureForError ());
- ok = false;
- }
- }
-
- if ((flags & Modifiers.PRIVATE) != 0){
- if ((flags & vao) != 0){
- Report.Error (621, mc.Location, "`{0}': virtual or abstract members cannot be private", mc.GetSignatureForError ());
- ok = false;
- }
- }
-
- if ((flags & Modifiers.SEALED) != 0){
- if ((flags & Modifiers.OVERRIDE) == 0){
- Report.Error (238, mc.Location, "`{0}' cannot be sealed because it is not an override", mc.GetSignatureForError ());
- ok = false;
- }
- }
-
- return ok;
- }
-
- public Constructor DefaultStaticConstructor {
- get { return default_static_constructor; }
- }
-
- protected override bool VerifyClsCompliance ()
- {
- 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 ()
- {
- Dictionary<string, object> base_members = base_cache == null ?
- new Dictionary<string, object> () :
- base_cache.GetPublicMembers ();
- var this_members = new Dictionary<string, object> ();
-
- foreach (var entry in defined_names) {
- MemberCore mc = entry.Value;
- if (!mc.IsClsComplianceRequired ())
- continue;
-
- string name = entry.Key;
- string basename = name.Substring (name.LastIndexOf ('.') + 1);
-
- string lcase = basename.ToLower (System.Globalization.CultureInfo.InvariantCulture);
- object found;
- if (!base_members.TryGetValue (lcase, out found)) {
- if (!this_members.TryGetValue (lcase, out found)) {
- 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);
- }
-
- Report.Warning (3005, 1, mc.Location, "Identifier `{0}' differing only in case is not CLS-compliant", mc.GetSignatureForError ());
- }
- }
-
-
- /// <summary>
- /// Performs checks for an explicit interface implementation. First it
- /// checks whether the `interface_type' is a base inteface implementation.
- /// Then it checks whether `name' exists in the interface type.
- /// </summary>
- public bool VerifyImplements (InterfaceMemberBase mb)
- {
- if (ifaces != null) {
- foreach (Type t in ifaces){
- if (TypeManager.IsEqual (t, mb.InterfaceType))
- return true;
- }
- }
-
- Report.SymbolRelatedToPreviousError (mb.InterfaceType);
- Report.Error (540, mb.Location, "`{0}': containing type does not implement interface `{1}'",
- mb.GetSignatureForError (), TypeManager.CSharpName (mb.InterfaceType));
- return false;
- }
-
- public override Type LookupAnyGeneric (string typeName)
- {
- if (types != null) {
- foreach (TypeContainer tc in types) {
- if (!tc.IsGeneric)
- continue;
-
- int pos = tc.Basename.LastIndexOf ('`');
- if (pos == typeName.Length && String.Compare (typeName, 0, tc.Basename, 0, pos) == 0)
- return tc.TypeBuilder;
- }
- }
-
- return base.LookupAnyGeneric (typeName);
- }
-
- public void Mark_HasEquals ()
- {
- cached_method |= CachedMethods.Equals;
- }
-
- public void Mark_HasGetHashCode ()
- {
- cached_method |= CachedMethods.GetHashCode;
- }
-
- /// <summary>
- /// Method container contains Equals method
- /// </summary>
- public bool HasEquals {
- get {
- return (cached_method & CachedMethods.Equals) != 0;
- }
- }
-
- /// <summary>
- /// Method container contains GetHashCode method
- /// </summary>
- public bool HasGetHashCode {
- get {
- return (cached_method & CachedMethods.GetHashCode) != 0;
- }
- }
-
- public bool HasStaticFieldInitializer {
- get {
- return (cached_method & CachedMethods.HasStaticFieldInitializer) != 0;
- }
- set {
- if (value)
- cached_method |= CachedMethods.HasStaticFieldInitializer;
- else
- cached_method &= ~CachedMethods.HasStaticFieldInitializer;
- }
- }
-
- //
- // IMemberContainer
- //
-
- 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, 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
- {
- Dictionary<SecurityAction, PermissionSet> declarative_security;
-
- public ClassOrStruct (NamespaceEntry ns, DeclSpace parent,
- MemberName name, Attributes attrs, Kind kind)
- : base (ns, parent, name, attrs, kind)
- {
- }
-
- protected override bool AddToContainer (MemberCore symbol, string name)
- {
- if (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);
- Report.Error (542, symbol.Location, "`{0}': member names cannot be the same as their enclosing type",
- symbol.GetSignatureForError ());
- return false;
- }
- }
-
- return base.AddToContainer (symbol, name);
- }
-
- public override void VerifyMembers ()
- {
- base.VerifyMembers ();
-
- if ((events != null) && Report.WarningLevel >= 3) {
- foreach (Event e in events){
- // Note: The event can be assigned from same class only, so we can report
- // this warning for all accessibility modes
- if ((e.caching_flags & Flags.IsUsed) == 0)
- Report.Warning (67, 3, e.Location, "The event `{0}' is never used", e.GetSignatureForError ());
- }
- }
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.IsValidSecurityAttribute ()) {
- if (declarative_security == null)
- declarative_security = new Dictionary<SecurityAction, PermissionSet> ();
-
- a.ExtractSecurityPermissionSet (declarative_security);
- return;
- }
-
- if (a.Type == pa.StructLayout) {
- PartialContainer.HasStructLayout = true;
-
- if (a.GetLayoutKindValue () == LayoutKind.Explicit)
- PartialContainer.HasExplicitLayout = true;
- }
-
- if (a.Type == pa.Dynamic) {
- a.Error_MisusedDynamicAttribute ();
- return;
- }
-
- base.ApplyAttributeBuilder (a, cb, pa);
- }
-
- /// <summary>
- /// Defines the default constructors
- /// </summary>
- protected void DefineDefaultConstructor (bool is_static)
- {
- // The default instance constructor is public
- // If the class is abstract, the default constructor is protected
- // The default static constructor is private
-
- Modifiers mods;
- if (is_static) {
- mods = Modifiers.STATIC | Modifiers.PRIVATE;
- } else {
- mods = ((ModFlags & Modifiers.ABSTRACT) != 0) ? Modifiers.PROTECTED : Modifiers.PUBLIC;
- }
-
- Constructor c = new Constructor (this, MemberName.Name, mods,
- null, ParametersCompiled.EmptyReadOnlyParameters,
- new GeneratedBaseInitializer (Location),
- Location);
-
- AddConstructor (c);
- c.Block = new ToplevelBlock (Compiler, ParametersCompiled.EmptyReadOnlyParameters, Location);
- }
-
- protected override bool DoDefineMembers ()
- {
- CheckProtectedModifier ();
-
- base.DoDefineMembers ();
-
- if (default_static_constructor != null)
- default_static_constructor.Define ();
-
- return true;
- }
-
- public override void Emit ()
- {
- if (default_static_constructor == null && PartialContainer.HasStaticFieldInitializer) {
- DefineDefaultConstructor (true);
- default_static_constructor.Define ();
- }
-
- base.Emit ();
-
- if (declarative_security != null) {
- foreach (var de in declarative_security) {
- TypeBuilder.AddDeclarativeSecurity (de.Key, de.Value);
- }
- }
- }
-
- public override ExtensionMethodGroupExpr LookupExtensionMethod (Type extensionType, string name, Location loc)
- {
- DeclSpace top_level = Parent;
- if (top_level != null) {
- while (top_level.Parent != null)
- top_level = top_level.Parent;
-
- var candidates = NamespaceEntry.NS.LookupExtensionMethod (extensionType, this, name);
- if (candidates != null)
- return new ExtensionMethodGroupExpr (candidates, NamespaceEntry, extensionType, loc);
- }
-
- return NamespaceEntry.LookupExtensionMethod (extensionType, name, loc);
- }
-
- protected override TypeAttributes TypeAttr {
- get {
- if (default_static_constructor == null)
- return base.TypeAttr | TypeAttributes.BeforeFieldInit;
-
- return base.TypeAttr;
- }
- }
- }
-
-
- // TODO: should be sealed
- public class Class : ClassOrStruct {
- const Modifiers AllowedModifiers =
- Modifiers.NEW |
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.PRIVATE |
- Modifiers.ABSTRACT |
- Modifiers.SEALED |
- Modifiers.STATIC |
- Modifiers.UNSAFE;
-
- public const TypeAttributes StaticClassAttribute = TypeAttributes.Abstract | TypeAttributes.Sealed;
-
- public Class (NamespaceEntry ns, DeclSpace parent, MemberName name, Modifiers mod,
- Attributes attrs)
- : base (ns, parent, name, attrs, Kind.Class)
- {
- var accmods = Parent.Parent == null ? Modifiers.INTERNAL : Modifiers.PRIVATE;
- this.ModFlags = ModifiersExtensions.Check (AllowedModifiers, mod, accmods, Location, Report);
-
- if (IsStatic && RootContext.Version == LanguageVersion.ISO_1) {
- Report.FeatureIsNotAvailable (Location, "static classes");
- }
- }
-
- public override void AddBasesForPart (DeclSpace part, List<FullNamedExpression> bases)
- {
- if (part.Name == "System.Object")
- Report.Error (537, part.Location,
- "The class System.Object cannot have a base class or implement an interface.");
- base.AddBasesForPart (part, bases);
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.Type == pa.AttributeUsage) {
- if (!TypeManager.IsAttributeType (BaseType) &&
- TypeBuilder.FullName != "System.Attribute") {
- 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)) {
- Report.Error (1689, a.Location, "Attribute `System.Diagnostics.ConditionalAttribute' is only valid on methods or attribute classes");
- return;
- }
-
- if (a.Type == pa.ComImport && !attributes.Contains (pa.Guid)) {
- a.Error_MissingGuidAttribute ();
- return;
- }
-
- if (a.Type == pa.Extension) {
- a.Error_MisusedExtensionAttribute ();
- return;
- }
-
- if (AttributeTester.IsAttributeExcluded (a.Type, Location))
- return;
-
- base.ApplyAttributeBuilder (a, cb, pa);
- }
-
- public override AttributeTargets AttributeTargets {
- get {
- return AttributeTargets.Class;
- }
- }
-
- protected override void DefineContainerMembers (System.Collections.IList list)
- {
- if (list == null)
- return;
-
- if (!IsStatic) {
- base.DefineContainerMembers (list);
- return;
- }
-
- foreach (MemberCore m in list) {
- if (m is Operator) {
- Report.Error (715, m.Location, "`{0}': Static classes cannot contain user-defined operators", m.GetSignatureForError ());
- continue;
- }
-
- if (m is Destructor) {
- Report.Error (711, m.Location, "`{0}': Static classes cannot contain destructor", GetSignatureForError ());
- continue;
- }
-
- if (m is Indexer) {
- Report.Error (720, m.Location, "`{0}': cannot declare indexers in a static class", m.GetSignatureForError ());
- continue;
- }
-
- if ((m.ModFlags & Modifiers.STATIC) != 0 || m is Enum || m is Delegate)
- continue;
-
- if (m is Constructor) {
- Report.Error (710, m.Location, "`{0}': Static classes cannot have instance constructors", GetSignatureForError ());
- continue;
- }
-
- Method method = m as Method;
- if (method != null && method.Parameters.HasExtensionMethodType) {
- Report.Error (1105, m.Location, "`{0}': Extension methods must be declared static", m.GetSignatureForError ());
- continue;
- }
-
- Report.Error (708, m.Location, "`{0}': cannot declare instance members in a static class", m.GetSignatureForError ());
- }
-
- base.DefineContainerMembers (list);
- }
-
- 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 ());
- }
-
- if ((ModFlags & (Modifiers.SEALED | Modifiers.STATIC)) == (Modifiers.SEALED | Modifiers.STATIC)) {
- Report.Error (441, Location, "`{0}': a class cannot be both static and sealed", GetSignatureForError ());
- }
-
- if (InstanceConstructors == null && !IsStatic)
- DefineDefaultConstructor (false);
-
- return base.DoDefineMembers ();
- }
-
- public override void Emit ()
- {
- base.Emit ();
-
- if ((ModFlags & Modifiers.METHOD_EXTENSION) != 0)
- PredefinedAttributes.Get.Extension.EmitAttribute (TypeBuilder);
- }
-
- 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;
- } else {
- if (Kind == Kind.Class && TypeManager.IsGenericParameter (base_class.Type)){
- 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)) {
- 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){
- 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;
- }
-
- if (!base_class.CanInheritFrom ()){
- Report.Error (644, Location, "`{0}' cannot derive from special class `{1}'",
- GetSignatureForError (), base_class.GetSignatureForError ());
- return ifaces;
- }
-
- 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 ());
- }
- }
-
- 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 (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 ()
- {
- if ((caching_flags & Flags.Excluded_Undetected) == 0)
- return (caching_flags & Flags.Excluded) != 0;
-
- caching_flags &= ~Flags.Excluded_Undetected;
-
- 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 (Location.CompilationUnit.IsConditionalDefined (condition))
- return false;
- }
-
- caching_flags |= Flags.Excluded;
- return true;
- }
-
- //
- // FIXME: How do we deal with the user specifying a different
- // layout?
- //
- protected override TypeAttributes TypeAttr {
- get {
- TypeAttributes ta = base.TypeAttr | TypeAttributes.AutoLayout | TypeAttributes.Class;
- if (IsStatic)
- ta |= StaticClassAttribute;
- return ta;
- }
- }
- }
-
- public sealed class Struct : ClassOrStruct {
-
- bool is_unmanaged, has_unmanaged_check_done;
-
- // <summary>
- // Modifiers allowed in a struct declaration
- // </summary>
- const Modifiers AllowedModifiers =
- Modifiers.NEW |
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.UNSAFE |
- Modifiers.PRIVATE;
-
- public Struct (NamespaceEntry ns, DeclSpace parent, MemberName name,
- Modifiers mod, Attributes attrs)
- : base (ns, parent, name, attrs, Kind.Struct)
- {
- var accmods = parent.Parent == null ? Modifiers.INTERNAL : Modifiers.PRIVATE;
-
- this.ModFlags = ModifiersExtensions.Check (AllowedModifiers, mod, accmods, Location, Report);
-
- this.ModFlags |= Modifiers.SEALED;
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- base.ApplyAttributeBuilder (a, cb, pa);
-
- //
- // When struct constains fixed fixed and struct layout has explicitly
- // set CharSet, its value has to be propagated to compiler generated
- // fixed field types
- //
- if (a.Type == pa.StructLayout && Fields != null && a.HasField ("CharSet")) {
- for (int i = 0; i < Fields.Count; ++i) {
- FixedField ff = Fields [i] as FixedField;
- if (ff != null)
- ff.SetCharSet (TypeBuilder.Attributes);
- }
- }
- }
-
- public override AttributeTargets AttributeTargets {
- get {
- return AttributeTargets.Struct;
- }
- }
-
- public override bool IsUnmanagedType ()
- {
- if (fields == null)
- return true;
-
- if (requires_delayed_unmanagedtype_check)
- return true;
-
- if (has_unmanaged_check_done)
- return is_unmanaged;
-
- has_unmanaged_check_done = true;
-
- foreach (FieldBase f in fields) {
- if ((f.ModFlags & Modifiers.STATIC) != 0)
- continue;
-
- // It can happen when recursive unmanaged types are defined
- // struct S { S* s; }
- Type 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))
- continue;
-
- if (TypeManager.IsUnmanagedType (mt))
- continue;
-
- return false;
- }
-
- 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;
- }
-
- 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 =
- TypeAttributes.SequentialLayout |
- TypeAttributes.Sealed;
-
- return base.TypeAttr | DefaultTypeAttributes;
- }
- }
-
- public override void RegisterFieldForInitialization (MemberCore field, FieldInitializer expression)
- {
- if ((field.ModFlags & Modifiers.STATIC) == 0) {
- Report.Error (573, field.Location, "`{0}': Structs cannot have instance field initializers",
- field.GetSignatureForError ());
- return;
- }
- base.RegisterFieldForInitialization (field, expression);
- }
-
- }
-
- /// <summary>
- /// Interfaces
- /// </summary>
- public sealed class Interface : TypeContainer, IMemberContainer {
-
- /// <summary>
- /// Modifiers allowed in a class declaration
- /// </summary>
- public const Modifiers AllowedModifiers =
- Modifiers.NEW |
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.UNSAFE |
- Modifiers.PRIVATE;
-
- public Interface (NamespaceEntry ns, DeclSpace parent, MemberName name, Modifiers mod,
- Attributes attrs)
- : base (ns, parent, name, attrs, Kind.Interface)
- {
- var accmods = parent.Parent == null ? Modifiers.INTERNAL : Modifiers.PRIVATE;
-
- this.ModFlags = ModifiersExtensions.Check (AllowedModifiers, mod, accmods, name.Location, Report);
- }
-
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.Type == pa.ComImport && !attributes.Contains (pa.Guid)) {
- a.Error_MissingGuidAttribute ();
- return;
- }
-
- base.ApplyAttributeBuilder (a, cb, pa);
- }
-
-
- public override AttributeTargets AttributeTargets {
- get {
- return AttributeTargets.Interface;
- }
- }
-
- protected override TypeAttributes TypeAttr {
- get {
- const TypeAttributes DefaultTypeAttributes =
- TypeAttributes.AutoLayout |
- TypeAttributes.Abstract |
- TypeAttributes.Interface;
-
- return base.TypeAttr | DefaultTypeAttributes;
- }
- }
-
- protected override bool VerifyClsCompliance ()
- {
- if (!base.VerifyClsCompliance ())
- return false;
-
- if (ifaces != null) {
- foreach (Type t in ifaces) {
- if (AttributeTester.IsClsCompliant (t))
- continue;
-
- Report.SymbolRelatedToPreviousError (t);
- Report.Warning (3027, 1, Location, "`{0}' is not CLS-compliant because base interface `{1}' is not CLS-compliant",
- GetSignatureForError (), TypeManager.CSharpName (t));
- }
- }
-
- return true;
- }
- }
-
- // 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, Modifiers mod, Modifiers 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 readonly ParametersCompiled Parameters;
- protected ToplevelBlock block;
-
- public MethodCore (DeclSpace parent, GenericMethod generic,
- FullNamedExpression type, Modifiers mod, Modifiers 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.
- //
- public override string GetDocCommentName (DeclSpace ds)
- {
- return DocUtil.GetMethodDocCommentName (this, Parameters, ds);
- }
-
- //
- // 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.
- //
- internal override void OnGenerateDocComment (XmlElement el)
- {
- DocUtil.OnMethodGenerateDocComment (this, el, Report);
- }
-
- //
- // Represents header string for documentation comment.
- //
- 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 (this);
- return true;
- }
-
- }
-
- public abstract class InterfaceMemberBase : MemberBase {
- //
- // Whether this is an interface member.
- //
- public bool IsInterface;
-
- //
- // If true, this is an explicit interface implementation
- //
- public bool IsExplicitImpl;
-
- protected bool is_external_implementation;
-
- //
- // The interface type we are explicitly implementing
- //
- public Type InterfaceType;
-
- //
- // The method we're overriding if this is an override method.
- //
- protected MethodInfo base_method;
-
- readonly Modifiers explicit_mod_flags;
- public MethodAttributes flags;
-
- public InterfaceMemberBase (DeclSpace parent, GenericMethod generic,
- 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;
- IsExplicitImpl = (MemberName.Left != null);
- explicit_mod_flags = mod;
- }
-
- protected override bool CheckBase ()
- {
- if (!base.CheckBase ())
- return false;
-
- if ((caching_flags & Flags.MethodOverloadsExist) != 0)
- CheckForDuplications ();
-
- 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 ());
- }
- 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;
-
- 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));
- }
- } 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));
- }
- }
- }
- 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));
- } else {
- Report.Error (115, Location, "`{0}' is marked as an override but no suitable {1} found to override",
- GetSignatureForError (), SimpleName.GetMemberType (this));
- }
- 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 ());
- }
- return true;
- }
-
- if ((ModFlags & Modifiers.NEW) == 0) {
- if (this is MethodOrOperator && conflict_symbol.MemberType == MemberTypes.Method)
- return true;
-
- 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 virtual bool CheckForDuplications ()
- {
- return Parent.MemberCache.CheckExistingMembersOverloads (
- this, GetFullName (MemberName), ParametersCompiled.EmptyReadOnlyParameters, Report);
- }
-
- //
- // 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)
- {
- 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 (!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;
- }
- }
-
- 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;
- }
- }
-
- return ok;
- }
-
- protected bool CheckAccessModifiers (MethodAttributes thisp, MethodAttributes base_classp, MethodInfo base_method)
- {
- if ((base_classp & MethodAttributes.FamORAssem) == MethodAttributes.FamORAssem){
- //
- // 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 (Parent.Module.Assembly, base_method.DeclaringType.Assembly);
- } else if ((thisp & MethodAttributes.Family) != MethodAttributes.Family) {
- //
- // if it's not "protected internal", it must be "protected"
- //
-
- return false;
- } else if (Parent.TypeBuilder.Assembly == base_method.DeclaringType.Assembly) {
- //
- // protected within the same assembly - an error
- //
- return false;
- } else if ((thisp & ~(MethodAttributes.Family | MethodAttributes.FamORAssem)) !=
- (base_classp & ~(MethodAttributes.Family | MethodAttributes.FamORAssem))) {
- //
- // protected ok, but other attributes differ - report an error
- //
- return false;
- }
- return true;
- } else {
- return (thisp == base_classp);
- }
- }
-
- public override bool Define ()
- {
- if (IsInterface) {
- ModFlags = Modifiers.PUBLIC | Modifiers.ABSTRACT |
- Modifiers.VIRTUAL | (ModFlags & (Modifiers.UNSAFE | Modifiers.NEW));
-
- flags = MethodAttributes.Public |
- MethodAttributes.Abstract |
- MethodAttributes.HideBySig |
- MethodAttributes.NewSlot |
- MethodAttributes.Virtual;
- } else {
- Parent.PartialContainer.MethodModifiersValid (this);
-
- flags = ModifiersExtensions.MethodAttr (ModFlags);
- }
-
- if (IsExplicitImpl) {
- TypeExpr iface_texpr = MemberName.Left.GetTypeExpression ().ResolveAsTypeTerminal (this, false);
- if (iface_texpr == null)
- return false;
-
- if ((ModFlags & Modifiers.PARTIAL) != 0) {
- Report.Error (754, Location, "A partial method `{0}' cannot explicitly implement an interface",
- GetSignatureForError ());
- }
-
- InterfaceType = iface_texpr.Type;
-
- if (!InterfaceType.IsInterface) {
- Report.SymbolRelatedToPreviousError (InterfaceType);
- Report.Error (538, Location, "The type `{0}' in explicit interface declaration is not an interface",
- TypeManager.CSharpName (InterfaceType));
- } else {
- Parent.PartialContainer.VerifyImplements (this);
- }
-
- ModifiersExtensions.Check (Modifiers.AllowedExplicitImplFlags, explicit_mod_flags, 0, Location, Report);
- }
-
- return base.Define ();
- }
-
- protected bool DefineParameters (ParametersCompiled parameters)
- {
- if (!parameters.Resolve (this))
- return false;
-
- bool error = false;
- for (int i = 0; i < parameters.Count; ++i) {
- Parameter p = parameters [i];
-
- if (p.HasDefaultValue && (IsExplicitImpl || this is Operator || (this is Indexer && parameters.Count == 1)))
- p.Warning_UselessOptionalParameter (Report);
-
- if (p.CheckAccessibility (this))
- continue;
-
- Type t = parameters.Types [i];
- Report.SymbolRelatedToPreviousError (t);
- if (this is Indexer)
- Report.Error (55, Location,
- "Inconsistent accessibility: parameter type `{0}' is less accessible than indexer `{1}'",
- TypeManager.CSharpName (t), GetSignatureForError ());
- else if (this is Operator)
- Report.Error (57, Location,
- "Inconsistent accessibility: parameter type `{0}' is less accessible than operator `{1}'",
- TypeManager.CSharpName (t), GetSignatureForError ());
- else
- Report.Error (51, Location,
- "Inconsistent accessibility: parameter type `{0}' is less accessible than method `{1}'",
- TypeManager.CSharpName (t), GetSignatureForError ());
- error = true;
- }
- return !error;
- }
-
- public override void Emit()
- {
- // for extern static method must be specified either DllImport attribute or MethodImplAttribute.
- // We are more strict than csc and report this as an error because SRE does not allow emit that
- if ((ModFlags & Modifiers.EXTERN) != 0 && !is_external_implementation) {
- if (this is Constructor) {
- Report.Error (824, Location,
- "Constructor `{0}' is marked `external' but has no external implementation specified", GetSignatureForError ());
- } else {
- Report.Error (626, Location,
- "`{0}' is marked as an external but has no DllImport attribute. Consider adding a DllImport attribute to specify the external implementation",
- GetSignatureForError ());
- }
- }
-
- base.Emit ();
- }
-
- public override bool EnableOverloadChecks (MemberCore overload)
- {
- //
- // Two members can differ in their explicit interface
- // type parameter only
- //
- InterfaceMemberBase imb = overload as InterfaceMemberBase;
- if (imb != null && imb.IsExplicitImpl) {
- if (IsExplicitImpl) {
- caching_flags |= Flags.MethodOverloadsExist;
- }
- return true;
- }
-
- return IsExplicitImpl;
- }
-
- protected void Error_CannotChangeAccessModifiers (Location loc, MemberInfo base_method, MethodAttributes ma, string suffix)
- {
- 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, ModifiersExtensions.GetDescription (ma), base_name);
- }
-
- protected static string Error722 {
- get {
- return "`{0}': static types cannot be used as return types";
- }
- }
-
- /// <summary>
- /// Gets base method and its return type
- /// </summary>
- protected abstract MethodInfo FindOutBaseMethod (ref Type base_ret_type);
-
- //
- // The "short" name of this property / indexer / event. This is the
- // name without the explicit interface.
- //
- 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)
- {
- if (!IsExplicitImpl)
- return name.Name;
-
- //
- // When dealing with explicit members a full interface type
- // name is added to member name to avoid possible name conflicts
- //
- // We use CSharpName which gets us full name with benefit of
- // replacing predefined names which saves some space and name
- // is still unique
- //
- return TypeManager.CSharpName (InterfaceType) + "." + name.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;
- }
-
- if (GenericMethod != null)
- GenericMethod.VerifyClsCompliance ();
-
- return true;
- }
-
- public override bool IsUsed
- {
- get { return IsExplicitImpl || base.IsUsed; }
- }
-
- }
-
- public abstract class MethodOrOperator : MethodCore, IMethodData
- {
- public MethodBuilder MethodBuilder;
- ReturnParameter return_attributes;
- Dictionary<SecurityAction, PermissionSet> declarative_security;
- protected MethodData MethodData;
-
- static string[] attribute_targets = new string [] { "method", "return" };
-
- protected MethodOrOperator (DeclSpace parent, GenericMethod generic, FullNamedExpression type, Modifiers mod,
- Modifiers 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 (this, MethodBuilder, Location);
-
- return_attributes.ApplyAttributeBuilder (a, cb, pa);
- return;
- }
-
- if (a.IsInternalMethodImplAttribute) {
- is_external_implementation = true;
- }
-
- if (a.Type == pa.DllImport) {
- const Modifiers 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;
- }
-
- if (a.IsValidSecurityAttribute ()) {
- if (declarative_security == null)
- declarative_security = new Dictionary<SecurityAction, PermissionSet> ();
- a.ExtractSecurityPermissionSet (declarative_security);
- return;
- }
-
- if (MethodBuilder != null)
- MethodBuilder.SetCustomAttribute (cb);
- }
-
- public override AttributeTargets AttributeTargets {
- get {
- return AttributeTargets.Method;
- }
- }
-
- protected override bool CheckForDuplications ()
- {
- string name = GetFullName (MemberName);
- if (MemberName.IsGeneric)
- name = MemberName.MakeName (name, MemberName.TypeArguments);
-
- return Parent.MemberCache.CheckExistingMembersOverloads (this, name, Parameters, Report);
- }
-
- public virtual EmitContext CreateEmitContext (ILGenerator ig)
- {
- return new EmitContext (
- this, ig, MemberType);
- }
-
- protected override bool ResolveMemberType ()
- {
- if (GenericMethod != null) {
- MethodBuilder = Parent.TypeBuilder.DefineMethod (GetFullName (MemberName), flags);
- if (!GenericMethod.Define (this))
- return false;
- }
-
- return base.ResolveMemberType ();
- }
-
- 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, Compiler);
- 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 has not been found yet
- if ((caching_flags & Flags.PartialDefinitionExists) == 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);
-
- if (!MethodData.Define (Parent.PartialContainer, GetFullName (MemberName), Report))
- return false;
-
- MethodBuilder = MethodData.MethodBuilder;
-
- if (TypeManager.IsGenericMethod (MethodBuilder))
- Parent.MemberCache.AddGenericMember (MethodBuilder, this);
-
- Parent.MemberCache.AddMember (MethodBuilder, this);
-
- 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 (Report);
- }
- }
- }
-
- protected override void DoMemberTypeDependentChecks ()
- {
- base.DoMemberTypeDependentChecks ();
-
- if (!TypeManager.IsGenericParameter (MemberType)) {
- if (MemberType.IsAbstract && MemberType.IsSealed) {
- Report.Error (722, Location, Error722, TypeManager.CSharpName (MemberType));
- }
- }
- }
-
- public override void Emit ()
- {
- 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 (this, MethodBuilder, Location);
- PredefinedAttributes.Get.Dynamic.EmitAttribute (return_attributes.Builder);
- } else {
- var trans_flags = TypeManager.HasDynamicTypeUsed (ReturnType);
- if (trans_flags != null) {
- var pa = PredefinedAttributes.Get.DynamicTransform;
- if (pa.Constructor != null || pa.ResolveConstructor (Location, TypeManager.bool_type.MakeArrayType ())) {
- return_attributes = new ReturnParameter (this, MethodBuilder, Location);
- return_attributes.Builder.SetCustomAttribute (
- new CustomAttributeBuilder (pa.Constructor, new object [] { trans_flags }));
- }
- }
- }
-
- if (OptAttributes != null)
- OptAttributes.Emit ();
-
- if (declarative_security != null) {
- foreach (var de in declarative_security) {
- MethodBuilder.AddDeclarativeSecurity (de.Key, de.Value);
- }
- }
-
- if (MethodData != null)
- MethodData.Emit (Parent);
-
- base.Emit ();
-
- Block = null;
- MethodData = null;
- }
-
- protected void Error_ConditionalAttributeIsNotValid ()
- {
- 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;
- }
- }
-
- #region IMethodData Members
-
- public Type ReturnType {
- get {
- return MemberType;
- }
- }
-
- public MemberName MethodName {
- get {
- return MemberName;
- }
- }
-
- /// <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;
- }
-
- 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 Modifiers 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 Modifiers AllowedInterfaceModifiers =
- Modifiers.NEW | Modifiers.UNSAFE;
-
- Method partialMethodImplementation;
-
- public Method (DeclSpace parent, GenericMethod generic,
- FullNamedExpression return_type, Modifiers 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, Modifiers mod, Modifiers 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 ();
- }
-
- 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 FullNamedExpression LookupNamespaceOrType (string name, Location loc, bool ignore_cs0104)
- {
- TypeParameter[] tp = CurrentTypeParameters;
- if (tp != null) {
- TypeParameter t = TypeParameter.FindTypeParameter (tp, name);
- if (t != null)
- return new TypeParameterExpr (t, loc);
- }
-
- return base.LookupNamespaceOrType (name, loc, ignore_cs0104);
- }
-
- 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;
-
- var 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;
- }
-
- public override TypeParameter[] CurrentTypeParameters {
- get {
- if (GenericMethod != null)
- return GenericMethod.CurrentTypeParameters;
-
- return null;
- }
- }
-
- //
- // 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, Report);
- 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 Report)
- {
- 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 void SetPartialDefinition (Method methodDefinition)
- {
- caching_flags |= Flags.PartialDefinitionExists;
- methodDefinition.partialMethodImplementation = this;
-
- // Ensure we are always using method declaration parameters
- for (int i = 0; i < methodDefinition.Parameters.Count; ++i ) {
- Parameters [i].Name = methodDefinition.Parameters [i].Name;
- 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) {
- var al = Parent.PartialContainer.MemberCache.Members [Name];
- if (al.Count > 1)
- MemberCache.VerifyClsParameterConflict (al, this, MethodBuilder, Report);
- }
-
- 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 (ResolveContext ec)
- {
- throw new NotSupportedException ("ET");
- }
-
- protected override Expression DoResolve (ResolveContext ec)
- {
- eclass = ExprClass.Value;
-
- // TODO: ec.GetSignatureForError ()
- ConstructorBuilder caller_builder = ((Constructor) ec.MemberContext).ConstructorBuilder;
-
- if (argument_list != null) {
- bool dynamic;
-
- //
- // Spec mandates that constructor initializer will not have `this' access
- //
- using (ec.Set (ResolveContext.Options.BaseInitializer)) {
- argument_list.Resolve (ec, out dynamic);
- }
-
- if (dynamic) {
- ec.Report.Error (1975, loc,
- "The constructor call cannot be dynamically dispatched within constructor initializer");
-
- return null;
- }
- }
-
- type = ec.CurrentType;
- if (this is ConstructorBaseInitializer) {
- if (ec.CurrentType.BaseType == null)
- return this;
-
- type = ec.CurrentType.BaseType;
- if (TypeManager.IsStruct (ec.CurrentType)) {
- ec.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;
- }
-
- 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;
-
- if (!ec.IsStatic)
- base_constructor_group.InstanceExpression = ec.GetThis (loc);
-
- ConstructorInfo base_ctor = (ConstructorInfo)base_constructor_group;
-
- if (base_ctor == caller_builder){
- ec.Report.Error (516, loc, "Constructor `{0}' cannot call itself", TypeManager.CSharpSignature (caller_builder));
- }
-
- return this;
- }
-
- public override void Emit (EmitContext ec)
- {
- // It can be null for static initializers
- if (base_constructor_group == null)
- return;
-
- ec.Mark (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;
- Dictionary<SecurityAction, PermissionSet> declarative_security;
- bool has_compliant_args;
-
- // <summary>
- // Modifiers allowed for a constructor.
- // </summary>
- public const Modifiers 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, Modifiers 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 Dictionary<SecurityAction, PermissionSet> ();
- }
- 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, Report);
-
- 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, Compiler);
- }
-
- 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 ();
-
- //
- // 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);
-
- BlockContext bc = new BlockContext (this, block, TypeManager.void_type);
- bc.Set (ResolveContext.Options.ConstructorScope);
-
- if (emit_field_initializers)
- Parent.PartialContainer.ResolveFieldInitializers (bc);
-
- 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 != null && (ModFlags & Modifiers.STATIC) == 0){
- if (Parent.PartialContainer.Kind == Kind.Class && Initializer == null)
- Initializer = new GeneratedBaseInitializer (Location);
-
- if (Initializer != null) {
- block.AddScopeStatement (new StatementExpression (Initializer));
- }
- }
- }
-
- Parameters.ApplyAttributes (ConstructorBuilder);
-
- SourceMethod source = SourceMethod.Create (Parent, ConstructorBuilder, block);
-
- if (block != null) {
- if (block.Resolve (null, bc, Parameters, this)) {
- EmitContext ec = new EmitContext (this, ConstructorBuilder.GetILGenerator (), bc.ReturnType);
- ec.With (EmitContext.Options.ConstructorScope, true);
-
- if (!ec.HasReturnLabel && bc.HasReturnLabel) {
- ec.ReturnLabel = bc.ReturnLabel;
- ec.HasReturnLabel = true;
- }
-
- block.Emit (ec);
- }
- }
-
- if (source != null)
- source.CloseMethod ();
-
- if (declarative_security != null) {
- foreach (var de in declarative_security) {
- ConstructorBuilder.AddDeclarativeSecurity (de.Key, 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) {
- var al = Parent.MemberCache.Members [ConstructorInfo.ConstructorName];
- if (al.Count > 2)
- MemberCache.VerifyClsParameterConflict (al, this, ConstructorBuilder, Report);
-
- 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)
- {
- throw new NotImplementedException ();
- }
-
- 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 Modifiers 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,
- Modifiers modifiers, MethodAttributes flags, IMethodData method)
- {
- this.member = member;
- this.modifiers = modifiers;
- this.flags = flags;
-
- this.method = method;
- }
-
- public MethodData (InterfaceMemberBase member,
- Modifiers 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, Report Report)
- {
- 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;
-
- if (!GenericMethod.DefineType (GenericMethod, 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,
- method.ReturnType,
- param.GetEmitTypes ());
- return;
- }
-
- //
- // Generic method has been already defined to resolve method parameters
- // correctly when they use type parameters
- //
- builder.SetParameters (param.GetEmitTypes ());
- builder.SetReturnType (method.ReturnType);
- 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 {
- container.Compiler.Report.RuntimeMissingSupport (method.Location, "Generic method MethodAttributes");
- }
- }
- }
-
- //
- // Emits the code
- //
- public void Emit (DeclSpace parent)
- {
- 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);
-
- ToplevelBlock block = method.Block;
- if (block != null) {
- BlockContext bc = new BlockContext ((IMemberContext) method, block, method.ReturnType);
- if (block.Resolve (null, bc, method.ParameterInfo, method)) {
- EmitContext ec = method.CreateEmitContext (MethodBuilder.GetILGenerator ());
- if (!ec.HasReturnLabel && bc.HasReturnLabel) {
- ec.ReturnLabel = bc.ReturnLabel;
- ec.HasReturnLabel = true;
- }
-
- block.Emit (ec);
- }
- }
-
- if (source != null) {
- method.EmitExtraSymbolInfo (source);
- source.CloseMethod ();
- }
- }
- }
-
- public class Destructor : MethodOrOperator
- {
- const Modifiers AllowedModifiers =
- Modifiers.UNSAFE |
- Modifiers.EXTERN;
-
- static readonly string[] attribute_targets = new string [] { "method" };
-
- public static readonly string MetadataName = "Finalize";
-
- public Destructor (DeclSpace parent, Modifiers 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.Module.Compiler, 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 (Compiler, 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, 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_name = type;
- ModFlags = ModifiersExtensions.Check (allowed_mod, mod, def_mod, Location, Report);
- 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");
-
- TypeExpr te = type_name.ResolveAsTypeTerminal (this, 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, Modifiers mod,
- Modifiers 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 (a.Type == pa.FixedBuffer) {
- Report.Error (1716, Location, "Do not use 'System.Runtime.CompilerServices.FixedBuffer' attribute. Use the 'fixed' field modifier instead");
- return;
- }
-
-#if false
- 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;
- }
-
- if (a.Type == pa.Dynamic) {
- a.Error_MisusedDynamicAttribute ();
- 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, Report);
- }
-
- 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);
- } else {
- var trans_flags = TypeManager.HasDynamicTypeUsed (member_type);
- if (trans_flags != null) {
- var pa = PredefinedAttributes.Get.DynamicTransform;
- if (pa.Constructor != null || pa.ResolveConstructor (Location, TypeManager.bool_type.MakeArrayType ())) {
- FieldBuilder.SetCustomAttribute (new CustomAttributeBuilder (pa.Constructor, new object[] { trans_flags }));
- }
- }
- }
-
- 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 Report)
- {
- 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 Modifiers AllowedModifiers =
- Modifiers.NEW |
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.PRIVATE |
- Modifiers.UNSAFE;
-
- public FixedField (DeclSpace parent, FullNamedExpression type, Modifiers 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, ModifiersExtensions.FieldAttr (ModFlags));
- Parent.MemberCache.AddMember (FieldBuilder, this);
- TypeManager.RegisterFieldBase (FieldBuilder, this);
-
- return true;
- }
-
- protected override void DoMemberTypeIndependentChecks ()
- {
- base.DoMemberTypeIndependentChecks ();
-
- if (!IsUnsafe)
- Expression.UnsafeError (Report, 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()
- {
- ResolveContext rc = new ResolveContext (this);
- Constant c = size_expr.ResolveAsConstant (rc, this);
- if (c == null)
- return;
-
- IntConstant buffer_size_const = c.ImplicitConversionRequired (rc, 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 Modifiers 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, Modifiers 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 {
- Type[] required_modifier = null;
- if ((ModFlags & Modifiers.VOLATILE) != 0) {
- if (TypeManager.isvolatile_type == null)
- TypeManager.isvolatile_type = TypeManager.CoreLookupType (Compiler,
- "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, ModifiersExtensions.FieldAttr (ModFlags));
-
- // 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 Modifiers AllowedModifiers =
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.PRIVATE;
-
- public ToplevelBlock Block;
- public Attributes Attributes;
- public Location Location;
- public Modifiers ModFlags;
- public ParametersCompiled Parameters;
-
- public Accessor (ToplevelBlock b, Modifiers mod, Attributes attrs, ParametersCompiled p, Location loc)
- {
- Block = b;
- Attributes = attrs;
- Location = loc;
- Parameters = p;
- ModFlags = ModifiersExtensions.Check (AllowedModifiers, mod, 0, loc, RootContext.ToplevelTypes.Compiler.Report);
- }
- }
-
- // 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 Dictionary<SecurityAction, PermissionSet> 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 EmitContext CreateEmitContext (ILGenerator ig)
- {
- return new EmitContext (this, ig, ReturnType);
- }
-
- 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; }
-
- #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 Dictionary<SecurityAction, PermissionSet> ();
- 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 (this, 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 (this, method_data.MethodBuilder, Location);
- PredefinedAttributes.Get.Dynamic.EmitAttribute (return_attributes.Builder);
- } else {
- var trans_flags = TypeManager.HasDynamicTypeUsed (ReturnType);
- if (trans_flags != null) {
- var pa = PredefinedAttributes.Get.DynamicTransform;
- if (pa.Constructor != null || pa.ResolveConstructor (Location, TypeManager.bool_type.MakeArrayType ())) {
- return_attributes = new ReturnParameter (this, method_data.MethodBuilder, Location);
- return_attributes.Builder.SetCustomAttribute (
- new CustomAttributeBuilder (pa.Constructor, new object [] { trans_flags }));
- }
- }
- }
-
- if (OptAttributes != null)
- OptAttributes.Emit ();
-
- if (declarative_security != null) {
- foreach (var de in declarative_security) {
- method_data.MethodBuilder.AddDeclarativeSecurity (de.Key, 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), Report))
- 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 (Compiler,
- 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), Report))
- 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.AccessibilityMask) == 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.AccessibilityMask));
- ModFlags |= Modifiers.PROPERTY_CUSTOM;
- flags = ModifiersExtensions.MethodAttr (ModFlags);
- flags |= (method.flags & (~MethodAttributes.MemberAccessMask));
- }
-
- CheckAbstractAndExtern (block != null);
- CheckProtectedModifier ();
-
- if (block != null && block.IsIterator)
- Iterator.CreateIterator (this, Parent.PartialContainer, ModFlags, Compiler);
-
- return null;
- }
-
- public bool HasCustomAccessModifier {
- get {
- return (ModFlags & Modifiers.PROPERTY_CUSTOM) != 0;
- }
- }
-
- public PropertyBase Property {
- get {
- return method;
- }
- }
-
- public override ObsoleteAttribute GetObsoleteAttribute ()
- {
- return method.GetObsoleteAttribute ();
- }
-
- public override string GetSignatureForError()
- {
- return method.GetSignatureForError () + '.' + prefix.Substring (0, 3);
- }
-
- void CheckModifiers (Modifiers modflags)
- {
- modflags &= Modifiers.AccessibilityMask;
- Modifiers flags = 0;
- Modifiers mflags = method.ModFlags & Modifiers.AccessibilityMask;
-
- 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, Report);
- }
- }
-
- public PropertyMethod Get, Set;
- public PropertyBuilder PropertyBuilder;
- public MethodBuilder GetBuilder, SetBuilder;
-
- protected bool define_set_first = false;
-
- public PropertyBase (DeclSpace parent, FullNamedExpression type, Modifiers mod_flags,
- Modifiers 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;
- }
-
- if (a.Type == pa.Dynamic) {
- a.Error_MisusedDynamicAttribute ();
- 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.AccessibilityMask) != 0 &&
- (Set.ModFlags & Modifiers.AccessibilityMask) != 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.AccessibilityMask) != 0) ||
- (Set.IsDummy && (Get.ModFlags & Modifiers.AccessibilityMask) != 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 (
- ModifiersExtensions.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 (
- ModifiersExtensions.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);
- } else {
- var trans_flags = TypeManager.HasDynamicTypeUsed (member_type);
- if (trans_flags != null) {
- var pa = PredefinedAttributes.Get.DynamicTransform;
- if (pa.Constructor != null || pa.ResolveConstructor (Location, TypeManager.bool_type.MakeArrayType ())) {
- PropertyBuilder.SetCustomAttribute (
- new CustomAttributeBuilder (pa.Constructor, new object [] { trans_flags }));
- }
- }
- }
- }
-
- 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 Modifiers 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 Modifiers AllowedInterfaceModifiers =
- Modifiers.NEW;
-
- public Property (DeclSpace parent, FullNamedExpression type, Modifiers 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, Modifiers 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 (Compiler, ParametersCompiled.EmptyReadOnlyParameters, Location);
- Return r = new Return (fe, Location);
- Get.Block.AddStatement (r);
-
- // Create set block
- Set.Block = new ToplevelBlock (Compiler, 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);
- }
- }
+using System.Runtime.InteropServices;
- sealed class AddDelegateMethod: AEventPropertyAccessor
- {
- public AddDelegateMethod (Event method, Accessor accessor):
- base (method, accessor, AddPrefix)
- {
- }
- }
+#if STATIC
+using MetaType = IKVM.Reflection.Type;
+using IKVM.Reflection;
+using IKVM.Reflection.Emit;
+#else
+using MetaType = System.Type;
+using System.Reflection;
+using System.Reflection.Emit;
+#endif
- sealed class RemoveDelegateMethod: AEventPropertyAccessor
+namespace Mono.CSharp
+{
+ public class FieldDeclarator
+ {
+ public FieldDeclarator (SimpleMemberName name, Expression initializer)
{
- public RemoveDelegateMethod (Event method, Accessor accessor):
- base (method, accessor, RemovePrefix)
- {
- }
+ this.Name = name;
+ this.Initializer = initializer;
}
+ #region Properties
- static readonly string[] attribute_targets = new string [] { "event" }; // "property" target was disabled for 2.0 version
+ public SimpleMemberName Name { get; private set; }
+ public Expression Initializer { get; private set; }
- public EventProperty (DeclSpace parent, FullNamedExpression type, Modifiers 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);
- }
+ #endregion
+ }
- public override bool Define()
- {
- if (!base.Define ())
- return false;
+ //
+ // Abstract class for all fields
+ //
+ abstract public class FieldBase : MemberBase
+ {
+ protected FieldBuilder FieldBuilder;
+ protected FieldSpec spec;
+ public Status status;
+ protected Expression initializer;
+ protected List<FieldDeclarator> declarators;
- SetMemberIsUsed ();
- return true;
+ [Flags]
+ public enum Status : byte {
+ HAS_OFFSET = 4 // Used by FieldMember.
}
- public override string[] ValidAttributeTargets {
- get {
- return attribute_targets;
- }
- }
- }
+ static readonly string[] attribute_targets = new string [] { "field" };
- /// <summary>
- /// Event is declared like field.
- /// </summary>
- public class EventField : Event {
- abstract class EventFieldAccessor : AEventAccessor
+ protected FieldBase (TypeDefinition parent, FullNamedExpression type, Modifiers mod, Modifiers allowed_mod, MemberName name, Attributes attrs)
+ : base (parent, type, mod, allowed_mod | Modifiers.ABSTRACT, Modifiers.PRIVATE, name, attrs)
{
- 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 (Compiler, 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; }
+ if ((mod & Modifiers.ABSTRACT) != 0)
+ Report.Error (681, Location, "The modifier 'abstract' is not valid on fields. Try using a property instead");
}
- sealed class AddDelegateMethod: EventFieldAccessor
- {
- public AddDelegateMethod (Event method):
- base (method, AddPrefix)
- {
- }
+ #region Properties
- protected override Binary.Operator Operation {
- get { return Binary.Operator.Addition; }
+ public override AttributeTargets AttributeTargets {
+ get {
+ return AttributeTargets.Field;
}
}
- sealed class RemoveDelegateMethod: EventFieldAccessor
- {
- public RemoveDelegateMethod (Event method):
- base (method, RemovePrefix)
- {
- }
-
- protected override Binary.Operator Operation {
- get { return Binary.Operator.Subtraction; }
+ public List<FieldDeclarator> Declarators {
+ get {
+ return this.declarators;
}
}
-
- 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, Modifiers 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;
+ public Expression Initializer {
+ get {
+ return initializer;
}
-
- if (a.Target == AttributeTargets.Method) {
- int errors = Report.Errors;
- Add.ApplyAttributeBuilder (a, cb, pa);
- if (errors == Report.Errors)
- Remove.ApplyAttributeBuilder (a, cb, pa);
- return;
+ set {
+ this.initializer = value;
}
-
- 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;
+ public string Name {
+ get {
+ return MemberName.Name;
}
-
- // 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) || Parent.IsGeneric)
- 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 {
+ public FieldSpec Spec {
get {
- return !IsInterface && (ModFlags & Modifiers.ABSTRACT) == 0;
+ return spec;
}
}
- public override string[] ValidAttributeTargets
- {
+ public override string[] ValidAttributeTargets {
get {
- return HasBackingField ? attribute_targets : attribute_targets_interface;
+ return attribute_targets;
}
}
- }
- 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;
- }
+ #endregion
- public bool IsInterfaceImplementation {
- get { return method_data.implementing != null; }
- }
+ public void AddDeclarator (FieldDeclarator declarator)
+ {
+ if (declarators == null)
+ declarators = new List<FieldDeclarator> (2);
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
- {
- if (a.IsInternalMethodImplAttribute) {
- method.is_external_implementation = true;
- }
+ declarators.Add (declarator);
- base.ApplyAttributeBuilder (a, cb, pa);
- }
+ Parent.AddNameToContainer (this, declarator.Name.Value);
+ }
- 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);
+ public override void ApplyAttributeBuilder (Attribute a, MethodSpec ctor, byte[] cdata, PredefinedAttributes pa)
+ {
+ if (a.Type == pa.FieldOffset) {
+ status |= Status.HAS_OFFSET;
- param_attr.ApplyAttributeBuilder (a, cb, pa);
+ 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;
}
- 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), Report))
- return null;
-
- MethodBuilder mb = method_data.MethodBuilder;
- ParameterInfo.ApplyAttributes (mb);
- return mb;
- }
-
- public override Type ReturnType {
- get {
- return TypeManager.void_type;
+ if ((ModFlags & Modifiers.STATIC) != 0 || this is Const) {
+ Report.Error (637, Location, "The FieldOffset attribute is not allowed on static or const fields");
+ return;
}
}
- public override ObsoleteAttribute GetObsoleteAttribute ()
- {
- return method.GetObsoleteAttribute ();
- }
-
- public override string[] ValidAttributeTargets {
- get {
- return attribute_targets;
- }
+ if (a.Type == pa.FixedBuffer) {
+ Report.Error (1716, Location, "Do not use 'System.Runtime.CompilerServices.FixedBuffer' attribute. Use the 'fixed' field modifier instead");
+ return;
}
- public override ParametersCompiled ParameterInfo {
- get {
- return method.parameters;
+#if false
+ if (a.Type == pa.MarshalAs) {
+ UnmanagedMarshal marshal = a.GetMarshal (this);
+ if (marshal != null) {
+ FieldBuilder.SetMarshal (marshal);
}
+ return;
}
- }
-
-
- const Modifiers 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 Modifiers AllowedInterfaceModifiers =
- Modifiers.NEW;
-
- public AEventAccessor Add, Remove;
- public MyEventBuilder EventBuilder;
- public MethodBuilder AddBuilder, RemoveBuilder;
-
- ParametersCompiled parameters;
-
- protected Event (DeclSpace parent, FullNamedExpression type, Modifiers 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)
- {
+#endif
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;
+ if (a.Type == pa.Dynamic) {
+ a.Error_MisusedDynamicAttribute ();
+ return;
}
+
+ FieldBuilder.SetCustomAttribute ((ConstructorInfo) ctor.GetMetaInfo (), cdata);
}
- public override bool Define ()
+ public void SetCustomAttribute (MethodSpec ctor, byte[] data)
{
- if (!base.Define ())
- return false;
+ FieldBuilder.SetCustomAttribute ((ConstructorInfo) ctor.GetMetaInfo (), data);
+ }
- if (!TypeManager.IsDelegateType (MemberType)) {
- Report.Error (66, Location, "`{0}': event must be of a delegate type", GetSignatureForError ());
- }
+ protected override bool CheckBase ()
+ {
+ if (!base.CheckBase ())
+ return false;
- parameters = ParametersCompiled.CreateFullyResolved (
- new Parameter (null, "value", Parameter.Modifier.NONE, null, Location), MemberType);
+ MemberSpec candidate;
+ bool overrides = false;
+ var conflict_symbol = MemberCache.FindBaseMember (this, out candidate, ref overrides);
+ if (conflict_symbol == null)
+ conflict_symbol = candidate;
- if (!CheckBase ())
- 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 ());
+ }
+ } else {
+ 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 (), conflict_symbol.GetSignatureForError ());
+ }
- 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);
+ if (conflict_symbol.IsAbstract) {
+ Report.SymbolRelatedToPreviousError (conflict_symbol);
+ Report.Error (533, Location, "`{0}' hides inherited abstract member `{1}'",
+ GetSignatureForError (), conflict_symbol.GetSignatureForError ());
+ }
}
+
+ return true;
+ }
- //
- // 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 ()
+ public virtual Constant ConvertInitializer (ResolveContext rc, Constant expr)
{
- if (OptAttributes != null) {
- OptAttributes.Emit ();
- }
-
- Add.Emit (Parent);
- Remove.Emit (Parent);
-
- base.Emit ();
+ return expr.ConvertImplicitly (MemberType);
}
- protected override MethodInfo FindOutBaseMethod (ref Type base_ret_type)
+ protected override void DoMemberTypeDependentChecks ()
{
- MethodInfo mi = (MethodInfo) Parent.PartialContainer.BaseCache.FindBaseEvent (
- Parent.TypeBuilder, Name);
+ base.DoMemberTypeDependentChecks ();
+
+ if (MemberType.IsGenericParameter)
+ return;
- if (mi == null)
- return null;
+ if (MemberType.IsStatic)
+ Error_VariableOfStaticClass (Location, GetSignatureForError (), MemberType, Report);
- AParametersCollection pd = TypeManager.GetParameterData (mi);
- base_ret_type = pd.Types [0];
- return mi;
+ CheckBase ();
+ IsTypePermitted ();
}
//
// Represents header string for documentation comment.
//
public override string DocCommentHeader {
- get { return "E:"; }
+ get { return "F:"; }
}
- }
-
- public class Indexer : PropertyBase
- {
- public class GetIndexerMethod : GetMethod
+ public override void Emit ()
{
- 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;
- }
+ if (member_type.BuiltinType == BuiltinTypeSpec.Type.Dynamic) {
+ Module.PredefinedAttributes.Dynamic.EmitAttribute (FieldBuilder);
+ } else if (!Parent.IsCompilerGenerated && member_type.HasDynamicElement) {
+ Module.PredefinedAttributes.Dynamic.EmitAttribute (FieldBuilder, member_type, Location);
}
- }
- public class SetIndexerMethod: SetMethod
- {
- public SetIndexerMethod (Indexer method):
- base (method)
- {
- parameters = ParametersCompiled.MergeGenerated (Compiler, method.parameters, false, parameters [0], null);
- }
+ if ((ModFlags & Modifiers.COMPILER_GENERATED) != 0 && !Parent.IsCompilerGenerated)
+ Module.PredefinedAttributes.CompilerGenerated.EmitAttribute (FieldBuilder);
+ if ((ModFlags & Modifiers.DEBUGGER_HIDDEN) != 0)
+ Module.PredefinedAttributes.DebuggerBrowsable.EmitAttribute (FieldBuilder, System.Diagnostics.DebuggerBrowsableState.Never);
- public SetIndexerMethod (PropertyBase method, Accessor accessor):
- base (method, accessor)
- {
- parameters = method.Get.IsDummy ? accessor.Parameters : accessor.Parameters.Clone ();
+ if (OptAttributes != null) {
+ OptAttributes.Emit ();
}
- public override bool EnableOverloadChecks (MemberCore overload)
- {
- if (base.EnableOverloadChecks (overload)) {
- overload.caching_flags |= Flags.MethodOverloadsExist;
- return true;
- }
-
- return false;
+ 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 ());
}
- }
-
- const Modifiers AllowedModifiers =
- Modifiers.NEW |
- Modifiers.PUBLIC |
- Modifiers.PROTECTED |
- Modifiers.INTERNAL |
- Modifiers.PRIVATE |
- Modifiers.VIRTUAL |
- Modifiers.SEALED |
- Modifiers.OVERRIDE |
- Modifiers.UNSAFE |
- Modifiers.EXTERN |
- Modifiers.ABSTRACT;
-
- const Modifiers AllowedInterfaceModifiers =
- Modifiers.NEW;
- public readonly ParametersCompiled parameters;
+ ConstraintChecker.Check (this, member_type, type_expr.Location);
- public Indexer (DeclSpace parent, FullNamedExpression type, MemberName name, Modifiers 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);
+ base.Emit ();
}
- protected override bool CheckForDuplications ()
+ public static void Error_VariableOfStaticClass (Location loc, string variable_name, TypeSpec static_class, Report Report)
{
- return Parent.MemberCache.CheckExistingMembersOverloads (this, GetFullName (MemberName), parameters, Report);
+ Report.SymbolRelatedToPreviousError (static_class);
+ Report.Error (723, loc, "`{0}': cannot declare variables of static types",
+ variable_name);
}
-
- public override bool Define ()
- {
- if (!base.Define ())
- return false;
- if (!DefineParameters (parameters))
+ protected override bool VerifyClsCompliance ()
+ {
+ if (!base.VerifyClsCompliance ())
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);
+ if (!MemberType.IsCLSCompliant () || this is FixedField) {
+ Report.Warning (3003, 1, Location, "Type of `{0}' is not CLS-compliant",
+ GetSignatureForError ());
+ }
+ return true;
+ }
+ }
- string name = indexer_attr.GetIndexerAttributeValue ();
- if (name == null)
- return false;
+ //
+ // Field specification
+ //
+ public class FieldSpec : MemberSpec, IInterfaceMemberSpec
+ {
+ FieldInfo metaInfo;
+ TypeSpec memberType;
- ShortName = name;
+ public FieldSpec (TypeSpec declaringType, IMemberDefinition definition, TypeSpec memberType, FieldInfo info, Modifiers modifiers)
+ : base (MemberKind.Field, declaringType, definition, modifiers)
+ {
+ this.metaInfo = info;
+ this.memberType = memberType;
+ }
- 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;
- }
+ #region Properties
- if ((ModFlags & Modifiers.OVERRIDE) != 0) {
- Report.Error (609, indexer_attr.Location,
- "Cannot set the `IndexerName' attribute on an indexer marked override");
- return false;
- }
- }
+ public bool IsReadOnly {
+ get {
+ return (Modifiers & Modifiers.READONLY) != 0;
}
+ }
- if (InterfaceType != null) {
- string base_IndexerName = TypeManager.IndexerPropertyName (InterfaceType);
- if (base_IndexerName != Name)
- ShortName = base_IndexerName;
+ public TypeSpec MemberType {
+ get {
+ return memberType;
}
+ }
- if (!Parent.PartialContainer.AddMember (this) ||
- !Parent.PartialContainer.AddMember (Get) || !Parent.PartialContainer.AddMember (Set))
- return false;
-
- flags |= MethodAttributes.HideBySig | MethodAttributes.SpecialName;
-
- if (!DefineAccessors ())
- return false;
+#endregion
- if (!CheckBase ())
- return false;
+ public FieldInfo GetMetaInfo ()
+ {
+ if ((state & StateFlags.PendingMetaInflate) != 0) {
+ var decl_meta = DeclaringType.GetMetaInfo ();
+ if (DeclaringType.IsTypeBuilder) {
+ metaInfo = TypeBuilder.GetField (decl_meta, metaInfo);
+ } else {
+ var orig_token = metaInfo.MetadataToken;
+ metaInfo = decl_meta.GetField (Name, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static);
+ if (metaInfo.MetadataToken != orig_token)
+ throw new NotImplementedException ("Resolved to wrong meta token");
- //
- // Now name the parameters
- //
- PropertyBuilder = Parent.TypeBuilder.DefineProperty (
- GetFullName (MemberName), PropertyAttributes.None, MemberType, parameters.GetEmitTypes ());
+ // What a stupid API, does not work because field handle is imported
+ // metaInfo = FieldInfo.GetFieldFromHandle (metaInfo.FieldHandle, DeclaringType.MetaInfo.TypeHandle);
+ }
- if (!Get.IsDummy) {
- PropertyBuilder.SetGetMethod (GetBuilder);
- Parent.MemberCache.AddMember (GetBuilder, Get);
+ state &= ~StateFlags.PendingMetaInflate;
}
- if (!Set.IsDummy) {
- PropertyBuilder.SetSetMethod (SetBuilder);
- Parent.MemberCache.AddMember (SetBuilder, Set);
- }
-
- TypeManager.RegisterIndexer (PropertyBuilder, parameters);
- Parent.MemberCache.AddMember (PropertyBuilder, this);
- return true;
+ return metaInfo;
}
- public override bool EnableOverloadChecks (MemberCore overload)
+ public override MemberSpec InflateMember (TypeParameterInflator inflator)
{
- if (overload is Indexer) {
- caching_flags |= Flags.MethodOverloadsExist;
- return true;
- }
-
- return base.EnableOverloadChecks (overload);
+ var fs = (FieldSpec) base.InflateMember (inflator);
+ fs.memberType = inflator.Inflate (memberType);
+ return fs;
}
- public override string GetDocCommentName (DeclSpace ds)
+ public FieldSpec Mutate (TypeParameterMutator mutator)
{
- return DocUtil.GetMethodDocCommentName (this, parameters, ds);
- }
+ var decl = DeclaringType;
+ if (DeclaringType.IsGenericOrParentIsGeneric)
+ decl = mutator.Mutate (decl);
- public override string GetSignatureForError ()
- {
- StringBuilder sb = new StringBuilder (Parent.GetSignatureForError ());
- if (MemberName.Left != null) {
- sb.Append ('.');
- sb.Append (MemberName.Left.GetSignatureForError ());
- }
+ if (decl == DeclaringType)
+ return this;
- sb.Append (".this");
- sb.Append (parameters.GetSignatureForError ().Replace ('(', '[').Replace (')', ']'));
- return sb.ToString ();
- }
+ var fs = (FieldSpec) MemberwiseClone ();
+ fs.declaringType = decl;
+ fs.state |= StateFlags.PendingMetaInflate;
- protected override PropertyInfo ResolveBaseProperty ()
- {
- return Parent.PartialContainer.BaseCache.FindMemberToOverride (
- Parent.TypeBuilder, Name, parameters, null, true) as PropertyInfo;
+ // Gets back FieldInfo in case of metaInfo was inflated
+ fs.metaInfo = MemberCache.GetMember (TypeParameterMutator.GetMemberDeclaringType (DeclaringType), this).metaInfo;
+ return fs;
}
- protected override bool VerifyClsCompliance ()
+ public override List<TypeSpec> ResolveMissingDependencies ()
{
- if (!base.VerifyClsCompliance ())
- return false;
-
- parameters.VerifyClsCompliance (this);
- return true;
+ return memberType.ResolveMissingDependencies ();
}
}
- public class Operator : MethodOrOperator {
+ /// <summary>
+ /// Fixed buffer implementation
+ /// </summary>
+ public class FixedField : FieldBase
+ {
+ public const string FixedElementName = "FixedElementField";
+ static int GlobalCounter = 0;
+
+ TypeBuilder fixed_buffer_type;
const Modifiers AllowedModifiers =
+ Modifiers.NEW |
Modifiers.PUBLIC |
- Modifiers.UNSAFE |
- Modifiers.EXTERN |
- Modifiers.STATIC;
+ Modifiers.PROTECTED |
+ Modifiers.INTERNAL |
+ Modifiers.PRIVATE |
+ Modifiers.UNSAFE;
+
+ public FixedField (TypeDefinition parent, FullNamedExpression type, Modifiers mod, MemberName name, Attributes attrs)
+ : base (parent, type, mod, AllowedModifiers, name, attrs)
+ {
+ }
- public enum OpType : byte {
+ #region Properties
- // Unary operators
- LogicalNot,
- OnesComplement,
- Increment,
- Decrement,
- True,
- False,
+ //
+ // Explicit struct layout set by parent
+ //
+ public CharSet? CharSet {
+ get; set;
+ }
- // Unary and Binary operators
- Addition,
- Subtraction,
+ #endregion
- UnaryPlus,
- UnaryNegation,
-
- // Binary operators
- Multiply,
- Division,
- Modulus,
- BitwiseAnd,
- BitwiseOr,
- ExclusiveOr,
- LeftShift,
- RightShift,
- Equality,
- Inequality,
- GreaterThan,
- LessThan,
- GreaterThanOrEqual,
- LessThanOrEqual,
+ public override Constant ConvertInitializer (ResolveContext rc, Constant expr)
+ {
+ return expr.ImplicitConversionRequired (rc, rc.BuiltinTypes.Int, Location);
+ }
- // Implicit and Explicit
- Implicit,
- Explicit,
+ public override bool Define ()
+ {
+ if (!base.Define ())
+ return false;
- // Just because of enum
- TOP
- };
+ if (!BuiltinTypeSpec.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 ());
+ } else if (declarators != null) {
+ var t = new TypeExpression (MemberType, TypeExpression.Location);
+ foreach (var d in declarators) {
+ var f = new FixedField (Parent, t, ModFlags, new MemberName (d.Name.Value, d.Name.Location), OptAttributes);
+ f.initializer = d.Initializer;
+ ((ConstInitializer) f.initializer).Name = d.Name.Value;
+ f.Define ();
+ Parent.PartialContainer.Members.Add (f);
+ }
+ }
+
+ // Create nested fixed buffer container
+ string name = String.Format ("<{0}>__FixedBuffer{1}", Name, GlobalCounter++);
+ fixed_buffer_type = Parent.TypeBuilder.DefineNestedType (name,
+ TypeAttributes.NestedPublic | TypeAttributes.Sealed | TypeAttributes.BeforeFieldInit,
+ Compiler.BuiltinTypes.ValueType.GetMetaInfo ());
- public readonly OpType OperatorType;
+ var ffield = fixed_buffer_type.DefineField (FixedElementName, MemberType.GetMetaInfo (), FieldAttributes.Public);
+
+ FieldBuilder = Parent.TypeBuilder.DefineField (Name, fixed_buffer_type, ModifiersExtensions.FieldAttr (ModFlags));
- static readonly string [] [] names;
+ var element_spec = new FieldSpec (null, this, MemberType, ffield, ModFlags);
+ spec = new FixedFieldSpec (Parent.Definition, this, FieldBuilder, element_spec, ModFlags);
- 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" };
+ Parent.MemberCache.AddMember (spec);
+ return true;
}
-
- public Operator (DeclSpace parent, OpType type, FullNamedExpression ret_type,
- Modifiers 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)
+
+ protected override void DoMemberTypeIndependentChecks ()
{
- OperatorType = type;
- Block = block;
+ base.DoMemberTypeIndependentChecks ();
+
+ if (!IsUnsafe)
+ Expression.UnsafeError (Report, Location);
+
+ if (Parent.PartialContainer.Kind != MemberKind.Struct) {
+ Report.Error (1642, Location, "`{0}': Fixed size buffer fields may only be members of structs",
+ GetSignatureForError ());
+ }
}
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb, PredefinedAttributes pa)
+ public override void Emit()
{
- if (a.Type == pa.Conditional) {
- Error_ConditionalAttributeIsNotValid ();
+ ResolveContext rc = new ResolveContext (this);
+ IntConstant buffer_size_const = initializer.Resolve (rc) as IntConstant;
+ if (buffer_size_const == null)
return;
- }
- base.ApplyAttributeBuilder (a, cb, pa);
- }
-
- public override bool Define ()
- {
- const Modifiers RequiredModifiers = Modifiers.PUBLIC | Modifiers.STATIC;
- if ((ModFlags & RequiredModifiers) != RequiredModifiers){
- Report.Error (558, Location, "User-defined operator `{0}' must be declared static and public", GetSignatureForError ());
+ 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;
}
- if (!base.Define ())
- return false;
+ EmitFieldSize (buffer_size);
- // imlicit and explicit operator of same types are not allowed
- if (OperatorType == OpType.Explicit)
- Parent.MemberCache.CheckExistingMembersOverloads (this, GetMetadataName (OpType.Implicit), Parameters, Report);
- else if (OperatorType == OpType.Implicit)
- Parent.MemberCache.CheckExistingMembersOverloads (this, GetMetadataName (OpType.Explicit), Parameters, Report);
+#if STATIC
+ if (Module.HasDefaultCharSet)
+ fixed_buffer_type.__SetAttributes (fixed_buffer_type.Attributes | Module.DefaultCharSetType);
+#endif
- 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]);
+ Module.PredefinedAttributes.UnsafeValueType.EmitAttribute (fixed_buffer_type);
+ Module.PredefinedAttributes.CompilerGenerated.EmitAttribute (fixed_buffer_type);
+ fixed_buffer_type.CreateType ();
- 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 ());
+ base.Emit ();
+ }
- return false;
+ void EmitFieldSize (int buffer_size)
+ {
+ int type_size = BuiltinTypeSpec.GetSize (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;
}
- //
- // 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;
- }
+ AttributeEncoder encoder;
- //
- // 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;
- }
+ var ctor = Module.PredefinedMembers.StructLayoutAttributeCtor.Resolve (Location);
+ if (ctor == null)
+ return;
- 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;
- }
+ var field_size = Module.PredefinedMembers.StructLayoutSize.Resolve (Location);
+ var field_charset = Module.PredefinedMembers.StructLayoutCharSet.Resolve (Location);
+ if (field_size == null || field_charset == null)
+ return;
- 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
+ var char_set = CharSet ?? Module.DefaultCharSet ?? 0;
- 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;
- }
+ encoder = new AttributeEncoder ();
+ encoder.Encode ((short)LayoutKind.Sequential);
+ encoder.EncodeNamedArguments (
+ new [] { field_size, field_charset },
+ new Constant [] {
+ new IntConstant (Compiler.BuiltinTypes, buffer_size * type_size, Location),
+ new IntConstant (Compiler.BuiltinTypes, (int) char_set, Location)
}
-
- } else if (!TypeManager.IsEqual (first_arg_type_unwrap, declaring_type)) {
- // Checks for Binary operators
+ );
- var second_arg_type = ParameterTypes [1];
- if (TypeManager.IsNullableType (second_arg_type))
- second_arg_type = TypeManager.TypeToCoreType (TypeManager.GetTypeArguments (second_arg_type) [0]);
+ fixed_buffer_type.SetCustomAttribute ((ConstructorInfo) ctor.GetMetaInfo (), encoder.ToArray ());
- if (!TypeManager.IsEqual (second_arg_type, declaring_type)) {
- Report.Error (563, Location,
- "One of the parameters of a binary operator must be the containing type");
- return false;
- }
- }
+ //
+ // Don't emit FixedBufferAttribute attribute for private types
+ //
+ if ((ModFlags & Modifiers.PRIVATE) != 0)
+ return;
- return true;
- }
+ ctor = Module.PredefinedMembers.FixedBufferAttributeCtor.Resolve (Location);
+ if (ctor == null)
+ return;
- protected override bool ResolveMemberType ()
- {
- if (!base.ResolveMemberType ())
- return false;
+ encoder = new AttributeEncoder ();
+ encoder.EncodeTypeName (MemberType);
+ encoder.Encode (buffer_size);
+ encoder.EncodeEmptyNamedArguments ();
- flags |= MethodAttributes.SpecialName | MethodAttributes.HideBySig;
- return true;
+ FieldBuilder.SetCustomAttribute ((ConstructorInfo) ctor.GetMetaInfo (), encoder.ToArray ());
}
+ }
- // Operator cannot be override
- protected override MethodInfo FindOutBaseMethod (ref Type base_ret_type)
- {
- return null;
- }
+ class FixedFieldSpec : FieldSpec
+ {
+ readonly FieldSpec element;
- public static string GetName (OpType ot)
+ public FixedFieldSpec (TypeSpec declaringType, IMemberDefinition definition, FieldInfo info, FieldSpec element, Modifiers modifiers)
+ : base (declaringType, definition, element.MemberType, info, modifiers)
{
- return names [(int) ot] [0];
- }
+ this.element = element;
- 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;
+ // It's never CLS-Compliant
+ state &= ~StateFlags.CLSCompliant_Undetected;
}
- public static string GetMetadataName (OpType ot)
- {
- return names [(int) ot] [1];
+ public FieldSpec Element {
+ get {
+ return element;
+ }
}
- public static string GetMetadataName (string name)
- {
- for (int i = 0; i < names.Length; ++i) {
- if (names [i] [0] == name)
- return names [i] [1];
+ public TypeSpec ElementType {
+ get {
+ return MemberType;
}
- return null;
}
+ }
+
+ //
+ // 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 Modifiers AllowedModifiers =
+ Modifiers.NEW |
+ Modifiers.PUBLIC |
+ Modifiers.PROTECTED |
+ Modifiers.INTERNAL |
+ Modifiers.PRIVATE |
+ Modifiers.STATIC |
+ Modifiers.VOLATILE |
+ Modifiers.UNSAFE |
+ Modifiers.READONLY;
- public OpType GetMatchingOperator ()
+ public Field (TypeDefinition parent, FullNamedExpression type, Modifiers mod, MemberName name, Attributes attrs)
+ : base (parent, type, mod, AllowedModifiers, name, attrs)
{
- 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 ()
+ bool CanBeVolatile ()
{
- 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));
+ switch (MemberType.BuiltinType) {
+ case BuiltinTypeSpec.Type.Bool:
+ case BuiltinTypeSpec.Type.Char:
+ case BuiltinTypeSpec.Type.SByte:
+ case BuiltinTypeSpec.Type.Byte:
+ case BuiltinTypeSpec.Type.Short:
+ case BuiltinTypeSpec.Type.UShort:
+ case BuiltinTypeSpec.Type.Int:
+ case BuiltinTypeSpec.Type.UInt:
+ case BuiltinTypeSpec.Type.Float:
+ case BuiltinTypeSpec.Type.UIntPtr:
+ case BuiltinTypeSpec.Type.IntPtr:
+ return true;
}
- sb.Append (Parameters.GetSignatureForError ());
- return sb.ToString ();
- }
- }
+ if (TypeSpec.IsReferenceType (MemberType))
+ return true;
- //
- // 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 (MemberType.IsEnum)
+ return true;
- if (parameters == null)
- Parameters = Type.EmptyTypes;
- else
- Parameters = parameters;
+ return false;
}
- public override string ToString ()
+ public override void Accept (StructuralVisitor visitor)
{
- 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);
+ visitor.Visit (this);
}
- public override int GetHashCode ()
+ public override bool Define ()
{
- return Name.GetHashCode ();
- }
+ if (!base.Define ())
+ return false;
- public override bool Equals (Object o)
- {
- MethodSignature other = (MethodSignature) o;
+ MetaType[] required_modifier = null;
+ if ((ModFlags & Modifiers.VOLATILE) != 0) {
+ var mod = Module.PredefinedTypes.IsVolatile.Resolve ();
+ if (mod != null)
+ required_modifier = new MetaType[] { mod.GetMetaInfo () };
+ }
- if (other.Name != Name)
- return false;
+ FieldBuilder = Parent.TypeBuilder.DefineField (
+ Name, member_type.GetMetaInfo (), required_modifier, null, ModifiersExtensions.FieldAttr (ModFlags));
- if (other.RetType != RetType)
- return false;
-
- if (Parameters == null){
- if (other.Parameters == null)
- return true;
- return false;
+ spec = new FieldSpec (Parent.Definition, this, MemberType, FieldBuilder, ModFlags);
+
+ //
+ // Don't cache inaccessible fields except for struct where we
+ // need them for definitive assignment checks
+ //
+ if ((ModFlags & Modifiers.BACKING_FIELD) == 0 || Parent.Kind == MemberKind.Struct) {
+ Parent.MemberCache.AddMember (spec);
}
- if (other.Parameters == null)
- return false;
-
- int c = Parameters.Length;
- if (other.Parameters.Length != c)
- return false;
+ if (initializer != null) {
+ Parent.RegisterFieldForInitialization (this, new FieldInitializer (this, initializer, TypeExpression.Location));
+ }
+
+ if (declarators != null) {
+ foreach (var d in declarators) {
+ var t = new TypeExpression (MemberType, d.Name.Location);
+ var f = new Field (Parent, t, ModFlags, new MemberName (d.Name.Value, d.Name.Location), OptAttributes);
+ if (d.Initializer != null)
+ f.initializer = d.Initializer;
- for (int i = 0; i < c; i++)
- if (other.Parameters [i] != Parameters [i])
- return false;
+ f.Define ();
+ Parent.PartialContainer.Members.Add (f);
+ }
+ }
return true;
}
- static bool MemberSignatureCompare (MemberInfo m, object filter_criteria)
+ protected override void DoMemberTypeDependentChecks ()
{
- MethodSignature sig = (MethodSignature) filter_criteria;
-
- if (m.Name != sig.Name)
- return false;
+ if ((ModFlags & Modifiers.BACKING_FIELD) != 0)
+ return;
- Type ReturnType;
- MethodInfo mi = m as MethodInfo;
- PropertyInfo pi = m as PropertyInfo;
+ base.DoMemberTypeDependentChecks ();
- if (mi != null)
- ReturnType = mi.ReturnType;
- else if (pi != null)
- ReturnType = pi.PropertyType;
- else
- return false;
+ 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));
+ }
- //
- // we use sig.RetType == null to mean `do not check the
- // method return value.
- //
- if (sig.RetType != null) {
- if (!TypeManager.IsEqual (ReturnType, sig.RetType))
- return false;
+ if ((ModFlags & Modifiers.READONLY) != 0) {
+ Report.Error (678, Location, "`{0}': A field cannot be both volatile and readonly",
+ GetSignatureForError ());
+ }
}
+ }
- 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)
+ protected override bool VerifyClsCompliance ()
+ {
+ if (!base.VerifyClsCompliance ())
return false;
- for (int i = args.Length - 1; i >= 0; i--)
- if (!TypeManager.IsEqual (args [i], sigp [i]))
- return false;
+ if ((ModFlags & Modifiers.VOLATILE) != 0) {
+ Report.Warning (3026, 1, Location, "CLS-compliant field `{0}' cannot be volatile", GetSignatureForError ());
+ }
return true;
}
}
}
-
projects / mono.git / blobdiff