// decl.cs: Declaration base class for structs, classes, enums and interfaces.
//
// Author: Miguel de Icaza (miguel@gnu.org)
+// Marek Safar (marek.safar@seznam.cz)
//
// Licensed under the terms of the GNU GPL
//
using System;
using System.Collections;
+using System.Globalization;
using System.Reflection.Emit;
using System.Reflection;
namespace Mono.CSharp {
+ public class MemberName {
+ public string Name;
+ public readonly MemberName Left;
+
+ public static readonly MemberName Null = new MemberName ("");
+
+ public MemberName (string name)
+ {
+ this.Name = name;
+ }
+
+ public MemberName (MemberName left, string name)
+ : this (name)
+ {
+ this.Left = left;
+ }
+
+ public MemberName (MemberName left, MemberName right)
+ : this (left, right.Name)
+ {
+ }
+
+ public string GetName ()
+ {
+ return GetName (false);
+ }
+
+ public string GetName (bool is_generic)
+ {
+ string name = is_generic ? Basename : Name;
+ if (Left != null)
+ return Left.GetName (is_generic) + "." + name;
+ else
+ return name;
+ }
+
+ public string GetFullName ()
+ {
+ if (Left != null)
+ return Left.GetFullName () + "." + Name;
+ else
+ return Name;
+ }
+
+ public string GetTypeName ()
+ {
+ if (Left != null)
+ return Left.GetTypeName () + "." + Name;
+ else
+ return Name;
+ }
+
+ public Expression GetTypeExpression (Location loc)
+ {
+ if (Left != null) {
+ Expression lexpr = Left.GetTypeExpression (loc);
+
+ return new MemberAccess (lexpr, Name, loc);
+ } else {
+ return new SimpleName (Name, loc);
+ }
+ }
+
+ public MemberName Clone ()
+ {
+ if (Left != null)
+ return new MemberName (Left.Clone (), Name);
+ else
+ return new MemberName (Name);
+ }
+
+ public string Basename {
+ get {
+ return Name;
+ }
+ }
+
+ public override string ToString ()
+ {
+ return GetFullName ();
+ }
+ }
+
/// <summary>
- /// Base representation for members. This is only used to keep track
- /// of Name, Location and Modifier flags.
+ /// Base representation for members. This is used to keep track
+ /// of Name, Location and Modifier flags, and handling Attributes.
/// </summary>
- public abstract class MemberCore {
+ public abstract class MemberCore : Attributable {
/// <summary>
/// Public name
/// </summary>
- public string Name;
+ public string Name {
+ get {
+ // !(this is GenericMethod) && !(this is Method)
+ return MemberName.GetName (false);
+ }
+ }
+
+ public readonly MemberName MemberName;
/// <summary>
/// Modifier flags that the user specified in the source code
/// </summary>
public int ModFlags;
+ public readonly TypeContainer Parent;
+
/// <summary>
/// Location where this declaration happens
/// </summary>
public readonly Location Location;
+ [Flags]
+ public enum Flags {
+ Obsolete_Undetected = 1, // Obsolete attribute has not been detected yet
+ Obsolete = 1 << 1, // Type has obsolete attribute
+ ClsCompliance_Undetected = 1 << 2, // CLS Compliance has not been detected yet
+ ClsCompliant = 1 << 3, // Type is CLS Compliant
+ CloseTypeCreated = 1 << 4, // Tracks whether we have Closed the type
+ HasCompliantAttribute_Undetected = 1 << 5, // Presence of CLSCompliantAttribute has not been detected
+ HasClsCompliantAttribute = 1 << 6, // Type has CLSCompliantAttribute
+ ClsCompliantAttributeTrue = 1 << 7, // Type has CLSCompliant (true)
+ Excluded_Undetected = 1 << 8, // Conditional attribute has not been detected yet
+ Excluded = 1 << 9, // Method is conditional
+ TestMethodDuplication = 1 << 10 // Test for duplication must be performed
+ }
+
/// <summary>
- /// Attributes for this type
+ /// MemberCore flags at first detected then cached
/// </summary>
- Attributes attributes;
+ internal Flags caching_flags;
- public MemberCore (string name, Attributes attrs, Location loc)
+ public MemberCore (TypeContainer parent, MemberName name, Attributes attrs,
+ Location loc)
+ : base (attrs)
{
- Name = name;
+ Parent = parent;
+ MemberName = name;
Location = loc;
- attributes = attrs;
+ caching_flags = Flags.Obsolete_Undetected | Flags.ClsCompliance_Undetected | Flags.HasCompliantAttribute_Undetected | Flags.Excluded_Undetected;
+ }
+
+ /// <summary>
+ /// Tests presence of ObsoleteAttribute and report proper error
+ /// </summary>
+ protected void CheckUsageOfObsoleteAttribute (Type type)
+ {
+ if (type == null)
+ return;
+
+ ObsoleteAttribute obsolete_attr = AttributeTester.GetObsoleteAttribute (type);
+ if (obsolete_attr == null)
+ return;
+
+ AttributeTester.Report_ObsoleteMessage (obsolete_attr, type.FullName, Location);
}
- public abstract bool Define (TypeContainer parent);
+ public abstract bool Define ();
//
// Returns full member name for error message
//
- public virtual string GetSignatureForError () {
+ public virtual string GetSignatureForError ()
+ {
return Name;
}
- public Attributes OptAttributes
+ /// <summary>
+ /// Use this method when MethodBuilder is null
+ /// </summary>
+ public virtual string GetSignatureForError (TypeContainer tc)
{
+ return Name;
+ }
+
+ /// <summary>
+ /// Base Emit method. This is also entry point for CLS-Compliant verification.
+ /// </summary>
+ public virtual void Emit ()
+ {
+ // Hack with Parent == null is for EnumMember
+ if (Parent == null || (GetObsoleteAttribute (Parent) == null && Parent.GetObsoleteAttribute (Parent) == null))
+ VerifyObsoleteAttribute ();
+
+ if (!RootContext.VerifyClsCompliance)
+ return;
+
+ VerifyClsCompliance (Parent);
+ }
+
+ public bool InUnsafe {
get {
- return attributes;
- }
- set {
- attributes = value;
+ return ((ModFlags & Modifiers.UNSAFE) != 0) || Parent.UnsafeContext;
}
}
Expression.UnsafeError (Location);
return false;
}
+
+ /// <summary>
+ /// Returns instance of ObsoleteAttribute for this MemberCore
+ /// </summary>
+ public ObsoleteAttribute GetObsoleteAttribute (DeclSpace ds)
+ {
+ // ((flags & (Flags.Obsolete_Undetected | Flags.Obsolete)) == 0) is slower, but why ?
+ if ((caching_flags & Flags.Obsolete_Undetected) == 0 && (caching_flags & Flags.Obsolete) == 0) {
+ return null;
+ }
+
+ caching_flags &= ~Flags.Obsolete_Undetected;
+
+ if (OptAttributes == null)
+ return null;
+
+ // TODO: remove this allocation
+ EmitContext ec = new EmitContext (ds.Parent, ds, ds.Location,
+ null, null, ds.ModFlags, false);
+
+ Attribute obsolete_attr = OptAttributes.Search (TypeManager.obsolete_attribute_type, ec);
+ if (obsolete_attr == null)
+ return null;
+
+ ObsoleteAttribute obsolete = obsolete_attr.GetObsoleteAttribute (ds);
+ if (obsolete == null)
+ return null;
+
+ caching_flags |= Flags.Obsolete;
+ return obsolete;
+ }
+
+ /// <summary>
+ /// Analyze whether CLS-Compliant verification must be execute for this MemberCore.
+ /// </summary>
+ public override bool IsClsCompliaceRequired (DeclSpace container)
+ {
+ if ((caching_flags & Flags.ClsCompliance_Undetected) == 0)
+ return (caching_flags & Flags.ClsCompliant) != 0;
+
+ if (GetClsCompliantAttributeValue (container) && IsExposedFromAssembly (container)) {
+ caching_flags &= ~Flags.ClsCompliance_Undetected;
+ caching_flags |= Flags.ClsCompliant;
+ return true;
+ }
+
+ caching_flags &= ~Flags.ClsCompliance_Undetected;
+ return false;
+ }
+
+ /// <summary>
+ /// Returns true when MemberCore is exposed from assembly.
+ /// </summary>
+ protected bool IsExposedFromAssembly (DeclSpace ds)
+ {
+ if ((ModFlags & (Modifiers.PUBLIC | Modifiers.PROTECTED)) == 0)
+ return false;
+
+ DeclSpace parentContainer = ds;
+ while (parentContainer != null && parentContainer.ModFlags != 0) {
+ if ((parentContainer.ModFlags & (Modifiers.PUBLIC | Modifiers.PROTECTED)) == 0)
+ return false;
+ parentContainer = parentContainer.Parent;
+ }
+ return true;
+ }
+
+ /// <summary>
+ /// Resolve CLSCompliantAttribute value or gets cached value.
+ /// </summary>
+ bool GetClsCompliantAttributeValue (DeclSpace ds)
+ {
+ if (OptAttributes != null) {
+ EmitContext ec = new EmitContext (ds.Parent, ds, ds.Location,
+ null, null, ds.ModFlags, false);
+ Attribute cls_attribute = OptAttributes.GetClsCompliantAttribute (ec);
+ if (cls_attribute != null) {
+ caching_flags |= Flags.HasClsCompliantAttribute;
+ return cls_attribute.GetClsCompliantAttributeValue (ds);
+ }
+ }
+ return ds.GetClsCompliantAttributeValue ();
+ }
+
+ /// <summary>
+ /// Returns true if MemberCore is explicitly marked with CLSCompliantAttribute
+ /// </summary>
+ protected bool HasClsCompliantAttribute {
+ get {
+ return (caching_flags & Flags.HasClsCompliantAttribute) != 0;
+ }
+ }
+
+
+ /// <summary>
+ /// The main virtual method for CLS-Compliant verifications.
+ /// The method returns true if member is CLS-Compliant and false if member is not
+ /// CLS-Compliant which means that CLS-Compliant tests are not necessary. A descendants override it
+ /// and add their extra verifications.
+ /// </summary>
+ protected virtual bool VerifyClsCompliance (DeclSpace ds)
+ {
+ if (!IsClsCompliaceRequired (ds)) {
+ if ((RootContext.WarningLevel >= 2) && HasClsCompliantAttribute && !IsExposedFromAssembly (ds)) {
+ Report.Warning (3019, Location, "CLS compliance checking will not be performed on '{0}' because it is private or internal", GetSignatureForError ());
+ }
+ return false;
+ }
+
+ if (!CodeGen.Assembly.IsClsCompliant) {
+ if (HasClsCompliantAttribute) {
+ Report.Error (3014, Location, "'{0}' cannot be marked as CLS-compliant because the assembly does not have a CLSCompliant attribute", GetSignatureForError ());
+ }
+ return false;
+ }
+
+ int index = Name.LastIndexOf ('.');
+ if (Name [index > 0 ? index + 1 : 0] == '_') {
+ Report.Error (3008, Location, "Identifier '{0}' is not CLS-compliant", GetSignatureForError () );
+ }
+ return true;
+ }
+
+ protected abstract void VerifyObsoleteAttribute ();
+
}
/// <summary>
/// </summary>
public TypeBuilder TypeBuilder;
- /// <summary>
- /// This variable tracks whether we have Closed the type
- /// </summary>
- public bool Created = false;
-
//
// This is the namespace in which this typecontainer
// was declared. We use this to resolve names.
public string Basename;
- /// <summary>
- /// defined_names is used for toplevel objects
- /// </summary>
protected Hashtable defined_names;
- TypeContainer parent;
+ static string[] attribute_targets = new string [] { "type" };
- public DeclSpace (NamespaceEntry ns, TypeContainer parent, string name, Attributes attrs, Location l)
- : base (name, attrs, l)
+ public DeclSpace (NamespaceEntry ns, TypeContainer parent, MemberName name,
+ Attributes attrs, Location l)
+ : base (parent, name, attrs, l)
{
NamespaceEntry = ns;
- Basename = name.Substring (1 + name.LastIndexOf ('.'));
+ Basename = name.Name;
defined_names = new Hashtable ();
- this.parent = parent;
- }
-
- public void RecordDecl ()
- {
- if ((NamespaceEntry != null) && (parent == RootContext.Tree.Types))
- NamespaceEntry.DefineName (Basename, this);
- }
-
- /// <summary>
- /// The result value from adding an declaration into
- /// a struct or a class
- /// </summary>
- public enum AdditionResult {
- /// <summary>
- /// The declaration has been successfully
- /// added to the declation space.
- /// </summary>
- Success,
-
- /// <summary>
- /// The symbol has already been defined.
- /// </summary>
- NameExists,
-
- /// <summary>
- /// Returned if the declation being added to the
- /// name space clashes with its container name.
- ///
- /// The only exceptions for this are constructors
- /// and static constructors
- /// </summary>
- EnclosingClash,
-
- /// <summary>
- /// Returned if a constructor was created (because syntactically
- /// it looked like a constructor) but was not (because the name
- /// of the method is not the same as the container class
- /// </summary>
- NotAConstructor,
-
- /// <summary>
- /// This is only used by static constructors to emit the
- /// error 111, but this error for other things really
- /// happens at another level for other functions.
- /// </summary>
- MethodExists,
-
- /// <summary>
- /// Some other error.
- /// </summary>
- Error
}
/// <summary>
- /// Returns a status code based purely on the name
- /// of the member being added
+ /// Adds the member to defined_names table. It tests for duplications and enclosing name conflicts
/// </summary>
- protected AdditionResult IsValid (string basename, string name)
+ protected bool AddToContainer (MemberCore symbol, bool is_method, string fullname, string basename)
{
- if (basename == Basename)
- return AdditionResult.EnclosingClash;
+ if (basename == Basename) {
+ Report.SymbolRelatedToPreviousError (this);
+ Report.Error (542, "'{0}': member names cannot be the same as their enclosing type", symbol.Location, symbol.GetSignatureForError ());
+ return false;
+ }
+
+ MemberCore mc = (MemberCore)defined_names [fullname];
+
+ if (is_method && (mc is MethodCore || mc is IMethodData)) {
+ symbol.caching_flags |= Flags.TestMethodDuplication;
+ mc.caching_flags |= Flags.TestMethodDuplication;
+ return true;
+ }
- if (defined_names.Contains (name))
- return AdditionResult.NameExists;
+ if (mc != null) {
+ Report.SymbolRelatedToPreviousError (mc);
+ Report.Error (102, symbol.Location, "The type '{0}' already contains a definition for '{1}'", GetSignatureForError (), basename);
+ return false;
+ }
- return AdditionResult.Success;
+ defined_names.Add (fullname, symbol);
+ return true;
}
- public static int length;
- public static int small;
-
- /// <summary>
- /// Introduce @name into this declaration space and
- /// associates it with the object @o. Note that for
- /// methods this will just point to the first method. o
- /// </summary>
- public void DefineName (string name, object o)
+ public void RecordDecl ()
{
- defined_names.Add (name, o);
-
-#if DEBUGME
- int p = name.LastIndexOf ('.');
- int l = name.Length;
- length += l;
- small += l -p;
-#endif
+ if ((NamespaceEntry != null) && (Parent == RootContext.Tree.Types))
+ NamespaceEntry.DefineName (MemberName.Basename, this);
}
/// <summary>
- /// Returns the object associated with a given name in the declaration
- /// space. This is the inverse operation of `DefineName'
+ /// Returns the MemberCore associated with a given name in the declaration
+ /// space. It doesn't return method based symbols !!
/// </summary>
- public object GetDefinition (string name)
+ ///
+ public MemberCore GetDefinition (string name)
{
- return defined_names [name];
+ return (MemberCore)defined_names [name];
}
bool in_transit = false;
}
}
- public TypeContainer Parent {
- get {
- return parent;
- }
- }
-
/// <summary>
/// Looks up the alias for the name
/// </summary>
//
public bool IsTopLevel {
get {
- if (parent != null){
- if (parent.parent == null)
+ if (Parent != null){
+ if (Parent.Parent == null)
return true;
}
return false;
public virtual void CloseType ()
{
- if (!Created){
+ if ((caching_flags & Flags.CloseTypeCreated) == 0){
try {
TypeBuilder.CreateType ();
} catch {
// Note that this still creates the type and
// it is possible to save it
}
- Created = true;
+ caching_flags |= Flags.CloseTypeCreated;
}
}
get {
if ((ModFlags & Modifiers.UNSAFE) != 0)
return true;
- if (parent != null)
- return parent.UnsafeContext;
+ if (Parent != null)
+ return Parent.UnsafeContext;
return false;
}
}
}
// <summary>
- // Looks up the type, as parsed into the expression `e'
+ // Looks up the type, as parsed into the expression `e'.
// </summary>
+ //[Obsolete ("This method is going away soon")]
public Type ResolveType (Expression e, bool silent, Location loc)
{
- if (type_resolve_ec == null)
- type_resolve_ec = GetTypeResolveEmitContext (parent, loc);
- type_resolve_ec.loc = loc;
- type_resolve_ec.ContainerType = TypeBuilder;
-
- int errors = Report.Errors;
- TypeExpr d = e.ResolveAsTypeTerminal (type_resolve_ec);
-
- if (d == null || d.eclass != ExprClass.Type){
- if (!silent && errors == Report.Errors){
- Report.Error (246, loc, "Cannot find type `"+ e.ToString () +"'");
- }
- return null;
- }
-
- if (!d.CheckAccessLevel (this)) {
- Report. Error (122, loc, "`" + d.Name + "' " +
- "is inaccessible because of its protection level");
- return null;
- }
-
- return d.Type;
+ TypeExpr d = ResolveTypeExpr (e, silent, loc);
+ return d == null ? null : d.Type;
}
// <summary>
// Resolves the expression `e' for a type, and will recursively define
- // types.
+ // types. This should only be used for resolving base types.
// </summary>
public TypeExpr ResolveTypeExpr (Expression e, bool silent, Location loc)
{
if (type_resolve_ec == null)
- type_resolve_ec = GetTypeResolveEmitContext (parent, loc);
+ type_resolve_ec = GetTypeResolveEmitContext (Parent, loc);
type_resolve_ec.loc = loc;
type_resolve_ec.ContainerType = TypeBuilder;
- TypeExpr d = e.ResolveAsTypeTerminal (type_resolve_ec);
-
- if (d == null || d.eclass != ExprClass.Type){
- if (!silent){
- Report.Error (246, loc, "Cannot find type `"+ e +"'");
- }
- return null;
- }
-
- return d;
+ return e.ResolveAsTypeTerminal (type_resolve_ec, silent);
}
- public bool CheckAccessLevel (Type check_type)
+ public bool CheckAccessLevel (Type check_type)
{
if (check_type == TypeBuilder)
return true;
TypeAttributes check_attr = check_type.Attributes & TypeAttributes.VisibilityMask;
-
+
//
// Broken Microsoft runtime, return public for arrays, no matter what
// the accessibility is for their underlying class, and they return
if (check_type.IsArray || check_type.IsPointer)
return CheckAccessLevel (TypeManager.GetElementType (check_type));
+ if (TypeBuilder == null)
+ // FIXME: TypeBuilder will be null when invoked by Class.GetNormalBases().
+ // However, this is invoked again later -- so safe to return true.
+ // May also be null when resolving top-level attributes.
+ return true;
+
switch (check_attr){
case TypeAttributes.Public:
return true;
//
// This test should probably use the declaringtype.
//
- if (check_type.Assembly == TypeBuilder.Assembly){
- return true;
- }
- return false;
+ return check_type.Assembly == TypeBuilder.Assembly;
case TypeAttributes.NestedPublic:
return true;
case TypeAttributes.NestedPrivate:
- string check_type_name = check_type.FullName;
- string type_name = TypeBuilder.FullName;
-
- int cio = check_type_name.LastIndexOf ('+');
- string container = check_type_name.Substring (0, cio);
-
- //
- // Check if the check_type is a nested class of the current type
- //
- if (check_type_name.StartsWith (type_name + "+")){
- return true;
- }
-
- if (type_name.StartsWith (container)){
- return true;
- }
-
- return false;
+ return NestedAccessible (check_type);
case TypeAttributes.NestedFamily:
- //
- // Only accessible to methods in current type or any subtypes
- //
return FamilyAccessible (check_type);
case TypeAttributes.NestedFamANDAssem:
}
- protected bool FamilyAccessible (Type check_type)
+ protected bool NestedAccessible (Type check_type)
{
- Type declaring = check_type.DeclaringType;
- if (TypeBuilder.IsSubclassOf (declaring))
- return true;
-
string check_type_name = check_type.FullName;
-
+
+ // At this point, we already know check_type is a nested class.
int cio = check_type_name.LastIndexOf ('+');
- string container = check_type_name.Substring (0, cio);
-
- //
- // Check if the check_type is a nested class of the current type
- //
- if (check_type_name.StartsWith (container + "+"))
+
+ // Ensure that the string 'container' has a '+' in it to avoid false matches
+ string container = check_type_name.Substring (0, cio + 1);
+
+ // Ensure that type_name ends with a '+' so that it can match 'container', if necessary
+ string type_name = TypeBuilder.FullName + "+";
+
+ // If the current class is nested inside the container of check_type,
+ // we can access check_type even if it is private or protected.
+ return type_name.StartsWith (container);
+ }
+
+ protected bool FamilyAccessible (Type check_type)
+ {
+ Type declaring = check_type.DeclaringType;
+ if (TypeBuilder == declaring ||
+ TypeBuilder.IsSubclassOf (declaring))
return true;
- return false;
+ return NestedAccessible (check_type);
}
// Access level of a type.
object r;
error = false;
+ int p = name.LastIndexOf ('.');
if (dh.Lookup (ns, name, out r))
return (Type) r;
else {
+ //
+ // If the type is not a nested type, we do not need `LookupType's processing.
+ // If the @name does not have a `.' in it, this cant be a nested type.
+ //
if (ns != ""){
- if (Namespace.IsNamespace (ns)){
- string fullname = (ns != "") ? ns + "." + name : name;
- t = TypeManager.LookupType (fullname);
+ if (Namespace.IsNamespace (ns)) {
+ if (p != -1)
+ t = TypeManager.LookupType (ns + "." + name);
+ else
+ t = TypeManager.LookupTypeDirect (ns + "." + name);
} else
t = null;
- } else
+ } else if (p != -1)
t = TypeManager.LookupType (name);
+ else
+ t = TypeManager.LookupTypeDirect (name);
}
if (t != null) {
//
// In case we are fed a composite name, normalize it.
//
- int p = name.LastIndexOf ('.');
+
if (p != -1){
ns = MakeFQN (ns, name.Substring (0, p));
name = name.Substring (p+1);
if (t != null)
return t;
+ if (name.IndexOf ('.') > 0)
+ continue;
+
+ string alias_value = ns.LookupAlias (name);
+ if (alias_value != null) {
+ t = LookupInterfaceOrClass ("", alias_value, out error);
+ if (error)
+ return null;
+
+ if (t != null)
+ return t;
+ }
+
//
// Now check the using clause list
//
public abstract MemberCache MemberCache {
get;
}
+
+ public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
+ {
+ try {
+ TypeBuilder.SetCustomAttribute (cb);
+ } catch (System.ArgumentException e) {
+ Report.Warning (-21, a.Location,
+ "The CharSet named property on StructLayout\n"+
+ "\tdoes not work correctly on Microsoft.NET\n"+
+ "\tYou might want to remove the CharSet declaration\n"+
+ "\tor compile using the Mono runtime instead of the\n"+
+ "\tMicrosoft .NET runtime\n"+
+ "\tThe runtime gave the error: " + e);
+ }
+ }
+
+ /// <summary>
+ /// Goes through class hierarchy and get value of first CLSCompliantAttribute that found.
+ /// If no is attribute exists then return assembly CLSCompliantAttribute.
+ /// </summary>
+ public bool GetClsCompliantAttributeValue ()
+ {
+ if ((caching_flags & Flags.HasCompliantAttribute_Undetected) == 0)
+ return (caching_flags & Flags.ClsCompliantAttributeTrue) != 0;
+
+ caching_flags &= ~Flags.HasCompliantAttribute_Undetected;
+
+ if (OptAttributes != null) {
+ EmitContext ec = new EmitContext (Parent, this, Location,
+ null, null, ModFlags, false);
+ Attribute cls_attribute = OptAttributes.GetClsCompliantAttribute (ec);
+ if (cls_attribute != null) {
+ caching_flags |= Flags.HasClsCompliantAttribute;
+ if (cls_attribute.GetClsCompliantAttributeValue (this)) {
+ caching_flags |= Flags.ClsCompliantAttributeTrue;
+ return true;
+ }
+ return false;
+ }
+ }
+
+ if (Parent == null) {
+ if (CodeGen.Assembly.IsClsCompliant) {
+ caching_flags |= Flags.ClsCompliantAttributeTrue;
+ return true;
+ }
+ return false;
+ }
+
+ if (Parent.GetClsCompliantAttributeValue ()) {
+ caching_flags |= Flags.ClsCompliantAttributeTrue;
+ return true;
+ }
+ return false;
+ }
+
+ public override string[] ValidAttributeTargets {
+ get {
+ return attribute_targets;
+ }
+ }
}
/// <summary>
/// This is used when creating the member cache for a class to get all
/// members from the parent class.
/// </summary>
- IMemberContainer Parent {
+ IMemberContainer ParentContainer {
get;
}
protected Hashtable member_hash;
protected Hashtable method_hash;
- Hashtable interface_hash;
-
/// <summary>
/// Create a new MemberCache for the given IMemberContainer `container'.
/// </summary>
// TypeManager.object_type), we deep-copy its MemberCache here.
if (Container.IsInterface) {
MemberCache parent;
- interface_hash = new Hashtable ();
- if (Container.Parent != null)
- parent = Container.Parent.MemberCache;
+ if (Container.ParentContainer != null)
+ parent = Container.ParentContainer.MemberCache;
else
parent = TypeHandle.ObjectType.MemberCache;
member_hash = SetupCacheForInterface (parent);
- } else if (Container.Parent != null)
- member_hash = SetupCache (Container.Parent.MemberCache);
+ } else if (Container.ParentContainer != null)
+ member_hash = SetupCache (Container.ParentContainer.MemberCache);
else
member_hash = new Hashtable ();
/// <summary>
/// Add the contents of `new_hash' to `hash'.
/// </summary>
- void AddHashtable (Hashtable hash, Hashtable new_hash)
+ void AddHashtable (Hashtable hash, MemberCache cache)
{
+ Hashtable new_hash = cache.member_hash;
IDictionaryEnumerator it = new_hash.GetEnumerator ();
while (it.MoveNext ()) {
ArrayList list = (ArrayList) hash [it.Key];
- if (list != null)
- list.AddRange ((ArrayList) it.Value);
- else
- hash [it.Key] = ((ArrayList) it.Value).Clone ();
+ if (list == null)
+ hash [it.Key] = list = new ArrayList ();
+
+ foreach (CacheEntry entry in (ArrayList) it.Value) {
+ if (entry.Container != cache.Container)
+ break;
+ list.Add (entry);
+ }
}
}
foreach (TypeExpr iface in ifaces) {
Type itype = iface.Type;
- if (interface_hash.Contains (itype))
- continue;
-
- interface_hash [itype] = null;
-
IMemberContainer iface_container =
TypeManager.LookupMemberContainer (itype);
MemberCache iface_cache = iface_container.MemberCache;
- AddHashtable (hash, iface_cache.member_hash);
-
- if (iface_cache.interface_hash == null)
- continue;
-
- foreach (Type parent_contains in iface_cache.interface_hash.Keys)
- interface_hash [parent_contains] = null;
+ AddHashtable (hash, iface_cache);
}
return hash;
MemberInfo [] members = type.GetMethods (bf);
Array.Reverse (members);
-
+
foreach (MethodBase member in members) {
string name = member.Name;
- // Varargs methods aren't allowed in C# code.
- if ((member.CallingConvention & CallingConventions.VarArgs) != 0)
- continue;
-
// We use a name-based hash table of ArrayList's.
ArrayList list = (ArrayList) method_hash [name];
if (list == null) {
ArrayList global = new ArrayList ();
bool using_global = false;
- public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
- MemberFilter filter, object criteria)
+ static MemberInfo [] emptyMemberInfo = new MemberInfo [0];
+
+ public MemberInfo [] FindMembers (MemberTypes mt, BindingFlags bf, string name,
+ MemberFilter filter, object criteria)
{
if (using_global)
throw new Exception ();
applicable = (ArrayList) method_hash [name];
else
applicable = (ArrayList) member_hash [name];
-
+
if (applicable == null)
- return MemberList.Empty;
+ return emptyMemberInfo;
//
// 32 slots gives 53 rss/54 size
IMemberContainer current = Container;
+
// `applicable' is a list of all members with the given member name `name'
// in the current class and all its parent classes. The list is sorted in
// reverse order due to the way how the cache is initialy created (to speed
using_global = false;
MemberInfo [] copy = new MemberInfo [global.Count];
global.CopyTo (copy);
- return new MemberList (copy);
+ return copy;
+ }
+
+ // find the nested type @name in @this.
+ public Type FindNestedType (string name)
+ {
+ ArrayList applicable = (ArrayList) member_hash [name];
+ if (applicable == null)
+ return null;
+
+ for (int i = applicable.Count-1; i >= 0; i--) {
+ CacheEntry entry = (CacheEntry) applicable [i];
+ if ((entry.EntryType & EntryType.NestedType & EntryType.MaskType) != 0)
+ return (Type) entry.Member;
+ }
+
+ return null;
}
//
for (int i = applicable.Count - 1; i >= 0; i--) {
CacheEntry entry = (CacheEntry) applicable [i];
- if ((entry.EntryType & (is_property ? EntryType.Property : EntryType.Method)) == 0)
+ if ((entry.EntryType & (is_property ? (EntryType.Property | EntryType.Field) : EntryType.Method)) == 0)
continue;
PropertyInfo pi = null;
MethodInfo mi = null;
- Type [] cmpAttrs;
+ FieldInfo fi = null;
+ Type [] cmpAttrs = null;
if (is_property) {
- pi = (PropertyInfo) entry.Member;
- cmpAttrs = TypeManager.GetArgumentTypes (pi);
+ if ((entry.EntryType & EntryType.Field) != 0) {
+ fi = (FieldInfo)entry.Member;
+
+ // TODO: For this case we ignore member type
+ //fb = TypeManager.GetField (fi);
+ //cmpAttrs = new Type[] { fb.MemberType };
+ } else {
+ pi = (PropertyInfo) entry.Member;
+ cmpAttrs = TypeManager.GetArgumentTypes (pi);
+ }
} else {
mi = (MethodInfo) entry.Member;
cmpAttrs = TypeManager.GetArgumentTypes (mi);
}
-
+
+ if (fi != null) {
+ // TODO: Almost duplicate !
+ // Check visibility
+ switch (fi.Attributes & FieldAttributes.FieldAccessMask) {
+ case FieldAttributes.Private:
+ //
+ // A private method is Ok if we are a nested subtype.
+ // The spec actually is not very clear about this, see bug 52458.
+ //
+ if (invocationType != entry.Container.Type &
+ TypeManager.IsNestedChildOf (invocationType, entry.Container.Type))
+ continue;
+
+ break;
+ case FieldAttributes.FamANDAssem:
+ case FieldAttributes.Assembly:
+ //
+ // Check for assembly methods
+ //
+ if (mi.DeclaringType.Assembly != CodeGen.Assembly.Builder)
+ continue;
+ break;
+ }
+ return entry.Member;
+ }
+
//
// Check the arguments
//
return null;
}
+
+ /// <summary>
+ /// The method is looking for conflict with inherited symbols (errors CS0108, CS0109).
+ /// We handle two cases. The first is for types without parameters (events, field, properties).
+ /// The second are methods, indexers and this is why ignore_complex_types is here.
+ /// The latest param is temporary hack. See DoDefineMembers method for more info.
+ /// </summary>
+ public MemberInfo FindMemberWithSameName (string name, bool ignore_complex_types, MemberInfo ignore_member)
+ {
+ ArrayList applicable = null;
+
+ if (method_hash != null)
+ applicable = (ArrayList) method_hash [name];
+
+ if (applicable != null) {
+ for (int i = applicable.Count - 1; i >= 0; i--) {
+ CacheEntry entry = (CacheEntry) applicable [i];
+ if ((entry.EntryType & EntryType.Public) != 0)
+ return entry.Member;
+ }
+ }
+
+ if (member_hash == null)
+ return null;
+ applicable = (ArrayList) member_hash [name];
+
+ if (applicable != null) {
+ for (int i = applicable.Count - 1; i >= 0; i--) {
+ CacheEntry entry = (CacheEntry) applicable [i];
+ if ((entry.EntryType & EntryType.Public) != 0 & entry.Member != ignore_member) {
+ if (ignore_complex_types) {
+ if ((entry.EntryType & EntryType.Method) != 0)
+ continue;
+
+ // Does exist easier way how to detect indexer ?
+ if ((entry.EntryType & EntryType.Property) != 0) {
+ Type[] arg_types = TypeManager.GetArgumentTypes ((PropertyInfo)entry.Member);
+ if (arg_types.Length > 0)
+ continue;
+ }
+ }
+ return entry.Member;
+ }
+ }
+ }
+ return null;
+ }
+
+ Hashtable locase_table;
+
+ /// <summary>
+ /// Builds low-case table for CLS Compliance test
+ /// </summary>
+ public Hashtable GetPublicMembers ()
+ {
+ if (locase_table != null)
+ return locase_table;
+
+ locase_table = new Hashtable ();
+ foreach (DictionaryEntry entry in member_hash) {
+ ArrayList members = (ArrayList)entry.Value;
+ for (int ii = 0; ii < members.Count; ++ii) {
+ CacheEntry member_entry = (CacheEntry) members [ii];
+
+ if ((member_entry.EntryType & EntryType.Public) == 0)
+ continue;
+
+ // TODO: Does anyone know easier way how to detect that member is internal ?
+ switch (member_entry.EntryType & EntryType.MaskType) {
+ case EntryType.Constructor:
+ continue;
+
+ case EntryType.Field:
+ if ((((FieldInfo)member_entry.Member).Attributes & (FieldAttributes.Assembly | FieldAttributes.Public)) == FieldAttributes.Assembly)
+ continue;
+ break;
+
+ case EntryType.Method:
+ if ((((MethodInfo)member_entry.Member).Attributes & (MethodAttributes.Assembly | MethodAttributes.Public)) == MethodAttributes.Assembly)
+ continue;
+ break;
+
+ case EntryType.Property:
+ PropertyInfo pi = (PropertyInfo)member_entry.Member;
+ if (pi.GetSetMethod () == null && pi.GetGetMethod () == null)
+ continue;
+ break;
+
+ case EntryType.Event:
+ EventInfo ei = (EventInfo)member_entry.Member;
+ MethodInfo mi = ei.GetAddMethod ();
+ if ((mi.Attributes & (MethodAttributes.Assembly | MethodAttributes.Public)) == MethodAttributes.Assembly)
+ continue;
+ break;
+ }
+ string lcase = ((string)entry.Key).ToLower (System.Globalization.CultureInfo.InvariantCulture);
+ locase_table [lcase] = member_entry.Member;
+ break;
+ }
+ }
+ return locase_table;
+ }
+
+ public Hashtable Members {
+ get {
+ return member_hash;
+ }
+ }
+
+ /// <summary>
+ /// Cls compliance check whether methods or constructors parameters differing only in ref or out, or in array rank
+ /// </summary>
+ public void VerifyClsParameterConflict (ArrayList al, MethodCore method, MemberInfo this_builder)
+ {
+ EntryType tested_type = (method is Constructor ? EntryType.Constructor : EntryType.Method) | EntryType.Public;
+
+ for (int i = 0; i < al.Count; ++i) {
+ MemberCache.CacheEntry entry = (MemberCache.CacheEntry) al [i];
+
+ // skip itself
+ if (entry.Member == this_builder)
+ continue;
+
+ if ((entry.EntryType & tested_type) != tested_type)
+ continue;
+
+ MethodBase method_to_compare = (MethodBase)entry.Member;
+ if (AttributeTester.AreOverloadedMethodParamsClsCompliant (method.ParameterTypes, TypeManager.GetArgumentTypes (method_to_compare)))
+ continue;
+
+ IMethodData md = TypeManager.GetMethod (method_to_compare);
+
+ // TODO: now we are ignoring CLSCompliance(false) on method from other assembly which is buggy.
+ // However it is exactly what csc does.
+ if (md != null && !md.IsClsCompliaceRequired (method.Parent))
+ continue;
+
+ Report.SymbolRelatedToPreviousError (entry.Member);
+ Report.Error (3006, method.Location, "Overloaded method '{0}' differing only in ref or out, or in array rank, is not CLS-compliant", method.GetSignatureForError ());
+ }
+ }
}
}
projects / mono.git / blobdiff