// Author: Miguel de Icaza (miguel@gnu.org)
// Marek Safar (marek.safar@seznam.cz)
//
-// Licensed under the terms of the GNU GPL
+// Dual licensed under the terms of the MIT X11 or GNU GPL
//
-// (C) 2001 Ximian, Inc (http://www.ximian.com)
-// (C) 2004 Novell, Inc
+// Copyright 2001 Ximian, Inc (http://www.ximian.com)
+// Copyright 2004-2008 Novell, Inc
//
// TODO: Move the method verification stuff from the class.cs and interface.cs here
//
using System;
+using System.Text;
using System.Collections;
using System.Globalization;
using System.Reflection.Emit;
using System.Reflection;
-#if BOOTSTRAP_WITH_OLDLIB
+#if BOOTSTRAP_WITH_OLDLIB || NET_2_1
using XmlElement = System.Object;
#else
using System.Xml;
namespace Mono.CSharp {
public class MemberName {
- public string Name;
+ public readonly string Name;
+ public readonly TypeArguments TypeArguments;
+
public readonly MemberName Left;
+ public readonly Location Location;
public static readonly MemberName Null = new MemberName ("");
- public MemberName (string name)
+ bool is_double_colon;
+
+ private MemberName (MemberName left, string name, bool is_double_colon,
+ Location loc)
{
this.Name = name;
+ this.Location = loc;
+ this.is_double_colon = is_double_colon;
+ this.Left = left;
}
- public MemberName (MemberName left, string name)
- : this (name)
+ private MemberName (MemberName left, string name, bool is_double_colon,
+ TypeArguments args, Location loc)
+ : this (left, name, is_double_colon, loc)
{
- this.Left = left;
+ if (args != null && args.Count > 0)
+ this.TypeArguments = args;
}
+ public MemberName (string name)
+ : this (name, Location.Null)
+ { }
+
+ public MemberName (string name, Location loc)
+ : this (null, name, false, loc)
+ { }
+
+ public MemberName (string name, TypeArguments args, Location loc)
+ : this (null, name, false, args, loc)
+ { }
+
+ public MemberName (MemberName left, string name)
+ : this (left, name, left != null ? left.Location : Location.Null)
+ { }
+
+ public MemberName (MemberName left, string name, Location loc)
+ : this (left, name, false, loc)
+ { }
+
+ public MemberName (MemberName left, string name, TypeArguments args, Location loc)
+ : this (left, name, false, args, loc)
+ { }
+
+ public MemberName (string alias, string name, TypeArguments args, Location loc)
+ : this (new MemberName (alias, loc), name, true, args, loc)
+ { }
+
public MemberName (MemberName left, MemberName right)
- : this (left, right.Name)
+ : this (left, right, right.Location)
+ { }
+
+ public MemberName (MemberName left, MemberName right, Location loc)
+ : this (null, right.Name, false, right.TypeArguments, loc)
{
+ if (right.is_double_colon)
+ throw new InternalErrorException ("Cannot append double_colon member name");
+ this.Left = (right.Left == null) ? left : new MemberName (left, right.Left);
}
public string GetName ()
return GetName (false);
}
+ public bool IsGeneric {
+ get {
+ if (TypeArguments != null)
+ return true;
+ else if (Left != null)
+ return Left.IsGeneric;
+ else
+ return false;
+ }
+ }
+
public string GetName (bool is_generic)
{
string name = is_generic ? Basename : Name;
+ string connect = is_double_colon ? "::" : ".";
if (Left != null)
- return Left.GetName (is_generic) + "." + name;
+ return Left.GetName (is_generic) + connect + name;
else
return name;
}
- ///
- /// This returns exclusively the name as seen on the source code
- /// it is not the fully qualifed type after resolution
- ///
- public string GetPartialName ()
- {
- if (Left != null)
- return Left.GetPartialName () + "." + Name;
- else
- return Name;
- }
-
public string GetTypeName ()
{
+ string connect = is_double_colon ? "::" : ".";
if (Left != null)
- return Left.GetTypeName () + "." + Name;
+ return Left.GetTypeName () + connect + MakeName (Name, TypeArguments);
else
- return Name;
+ return MakeName (Name, TypeArguments);
}
- public Expression GetTypeExpression (Location loc)
+ public ATypeNameExpression GetTypeExpression ()
{
- if (Left != null) {
- Expression lexpr = Left.GetTypeExpression (loc);
+ if (Left == null) {
+ if (TypeArguments != null)
+ return new SimpleName (Basename, TypeArguments, Location);
+
+ return new SimpleName (Name, Location);
+ }
- return new MemberAccess (lexpr, Name, loc);
- } else {
- return new SimpleName (Name, loc);
+ if (is_double_colon) {
+ if (Left.Left != null)
+ throw new InternalErrorException ("The left side of a :: should be an identifier");
+ return new QualifiedAliasMember (Left.Name, Name, TypeArguments, Location);
}
+
+ Expression lexpr = Left.GetTypeExpression ();
+ return new MemberAccess (lexpr, Name, TypeArguments, Location);
}
public MemberName Clone ()
{
- if (Left != null)
- return new MemberName (Left.Clone (), Name);
- else
- return new MemberName (Name);
+ MemberName left_clone = Left == null ? null : Left.Clone ();
+ return new MemberName (left_clone, Name, is_double_colon, TypeArguments, Location);
}
public string Basename {
get {
- return Name;
+ if (TypeArguments != null)
+ return MakeName (Name, TypeArguments);
+ else
+ return Name;
+ }
+ }
+
+ public string MethodName {
+ get {
+ string connect = is_double_colon ? "::" : ".";
+ if (Left != null)
+ return Left.FullyQualifiedName + connect + Name;
+ else
+ return Name;
}
}
- public override string ToString ()
+ // Please use this only for error reporting. For normal uses, just use the Equals and GetHashCode methods that make
+ // MemberName a proper hash key, and avoid tons of memory allocations
+ string FullyQualifiedName {
+ get { return TypeArguments == null ? MethodName : MethodName + "<" + TypeArguments.GetSignatureForError () + ">"; }
+ }
+
+ public string GetSignatureForError ()
{
- if (Left != null)
- return Left + "." + Name;
+ string append = TypeArguments == null ? "" : "<" + TypeArguments.GetSignatureForError () + ">";
+ if (Left == null)
+ return Name + append;
+ string connect = is_double_colon ? "::" : ".";
+ return Left.GetSignatureForError () + connect + Name + append;
+ }
+
+ public override bool Equals (object other)
+ {
+ return Equals (other as MemberName);
+ }
+
+ public bool Equals (MemberName other)
+ {
+ if (this == other)
+ return true;
+ if (other == null || Name != other.Name)
+ return false;
+ if (is_double_colon != other.is_double_colon)
+ return false;
+
+ if ((TypeArguments != null) &&
+ (other.TypeArguments == null || TypeArguments.Count != other.TypeArguments.Count))
+ return false;
+
+ if ((TypeArguments == null) && (other.TypeArguments != null))
+ return false;
+
+ if (Left == null)
+ return other.Left == null;
+
+ return Left.Equals (other.Left);
+ }
+
+ public override int GetHashCode ()
+ {
+ int hash = Name.GetHashCode ();
+ for (MemberName n = Left; n != null; n = n.Left)
+ hash ^= n.Name.GetHashCode ();
+ if (is_double_colon)
+ hash ^= 0xbadc01d;
+
+ if (TypeArguments != null)
+ hash ^= TypeArguments.Count << 5;
+
+ return hash & 0x7FFFFFFF;
+ }
+
+ public int CountTypeArguments {
+ get {
+ if (TypeArguments != null)
+ return TypeArguments.Count;
+ else if (Left != null)
+ return Left.CountTypeArguments;
+ else
+ return 0;
+ }
+ }
+
+ public static string MakeName (string name, TypeArguments args)
+ {
+ if (args == null)
+ return name;
else
- return Name;
+ return name + "`" + args.Count;
+ }
+
+ public static string MakeName (string name, int count)
+ {
+ return name + "`" + count;
}
}
/// Base representation for members. This is used to keep track
/// of Name, Location and Modifier flags, and handling Attributes.
/// </summary>
- public abstract class MemberCore : Attributable {
+ public abstract class MemberCore : Attributable, IResolveContext {
/// <summary>
/// Public name
/// </summary>
+
+ protected string cached_name;
public string Name {
get {
- // !(this is GenericMethod) && !(this is Method)
- return MemberName.GetName (false);
+ if (cached_name == null)
+ cached_name = MemberName.GetName (!(this is GenericMethod) && !(this is Method));
+ return cached_name;
}
}
// Is not readonly because of IndexerName attribute
- public MemberName MemberName;
+ private MemberName member_name;
+ public MemberName MemberName {
+ get { return member_name; }
+ }
/// <summary>
/// Modifier flags that the user specified in the source code
/// </summary>
- public int ModFlags;
+ private int mod_flags;
+ public int ModFlags {
+ set {
+ mod_flags = value;
+ if ((value & Modifiers.COMPILER_GENERATED) != 0)
+ caching_flags = Flags.IsUsed | Flags.IsAssigned;
+ }
+ get {
+ return mod_flags;
+ }
+ }
- public /*readonly*/ TypeContainer Parent;
+ public /*readonly*/ DeclSpace Parent;
/// <summary>
/// Location where this declaration happens
/// </summary>
- public readonly Location Location;
+ public Location Location {
+ get { return member_name.Location; }
+ }
/// <summary>
/// XML documentation comment
/// </summary>
- public string DocComment;
+ protected string comment;
/// <summary>
/// Represents header string for documentation comment
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
+ MethodOverloadsExist = 1 << 10, // Test for duplication must be performed
+ IsUsed = 1 << 11,
+ IsAssigned = 1 << 12, // Field is assigned
+ HasExplicitLayout = 1 << 13,
+ PartialDefinitionExists = 1 << 14 // Set when corresponding partial method definition exists
}
/// <summary>
/// </summary>
internal Flags caching_flags;
- public MemberCore (TypeContainer parent, MemberName name, Attributes attrs,
- Location loc)
+ public MemberCore (DeclSpace parent, MemberName name, Attributes attrs)
: base (attrs)
{
- Parent = parent;
- MemberName = name;
- Location = loc;
+ this.Parent = parent;
+ member_name = name;
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)
+ protected virtual void SetMemberName (MemberName new_name)
+ {
+ member_name = new_name;
+ cached_name = null;
+ }
+
+ protected bool CheckAbstractAndExtern (bool has_block)
+ {
+ if (Parent.PartialContainer.Kind == Kind.Interface)
+ return true;
+
+ if (has_block) {
+ if ((ModFlags & Modifiers.EXTERN) != 0) {
+ Report.Error (179, Location, "`{0}' cannot declare a body because it is marked extern",
+ GetSignatureForError ());
+ return false;
+ }
+
+ if ((ModFlags & Modifiers.ABSTRACT) != 0) {
+ Report.Error (500, Location, "`{0}' cannot declare a body because it is marked abstract",
+ GetSignatureForError ());
+ return false;
+ }
+ } else {
+ if ((ModFlags & (Modifiers.ABSTRACT | Modifiers.EXTERN | Modifiers.PARTIAL)) == 0) {
+ if (RootContext.Version >= LanguageVersion.LINQ && this is Property.PropertyMethod &&
+ !(this is Indexer.GetIndexerMethod || this is Indexer.SetIndexerMethod)) {
+ Report.Error (840, Location, "`{0}' must have a body because it is not marked abstract or extern. The property can be automatically implemented when you define both accessors",
+ GetSignatureForError ());
+ } else {
+ Report.Error (501, Location, "`{0}' must have a body because it is not marked abstract, extern, or partial",
+ GetSignatureForError ());
+ }
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+ public void CheckProtectedModifier ()
{
- if (type == null)
+ if ((ModFlags & Modifiers.PROTECTED) == 0)
return;
- ObsoleteAttribute obsolete_attr = AttributeTester.GetObsoleteAttribute (type);
- if (obsolete_attr == null)
+ if (Parent.PartialContainer.Kind == Kind.Struct) {
+ Report.Error (666, Location, "`{0}': Structs cannot contain protected members",
+ GetSignatureForError ());
+ return;
+ }
+
+ if ((Parent.ModFlags & Modifiers.STATIC) != 0) {
+ Report.Error (1057, Location, "`{0}': Static classes cannot contain protected members",
+ GetSignatureForError ());
return;
+ }
- AttributeTester.Report_ObsoleteMessage (obsolete_attr, type.FullName, Location);
+ if (((Parent.ModFlags & Modifiers.SEALED) != 0) &&
+ ((ModFlags & Modifiers.OVERRIDE) == 0) && (Name != "Finalize")) {
+ Report.Warning (628, 4, Location, "`{0}': new protected member declared in sealed class",
+ GetSignatureForError ());
+ return;
+ }
}
public abstract bool Define ();
+ public virtual string DocComment {
+ get {
+ return comment;
+ }
+ set {
+ comment = value;
+ }
+ }
+
//
// Returns full member name for error message
//
public virtual string GetSignatureForError ()
{
- return Name;
- }
+ if (Parent == null || Parent.Parent == null)
+ return member_name.GetSignatureForError ();
- /// <summary>
- /// Use this method when MethodBuilder is null
- /// </summary>
- public virtual string GetSignatureForError (TypeContainer tc)
- {
- return Name;
+ return Parent.GetSignatureForError () + "." + member_name.GetSignatureForError ();
}
/// <summary>
/// </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);
+ VerifyClsCompliance ();
}
- public bool InUnsafe {
- get {
- return ((ModFlags & Modifiers.UNSAFE) != 0) || Parent.UnsafeContext;
- }
+ public virtual bool IsUsed {
+ get { return (caching_flags & Flags.IsUsed) != 0; }
}
- //
- // Whehter is it ok to use an unsafe pointer in this type container
- //
- public bool UnsafeOK (DeclSpace parent)
+ public void SetMemberIsUsed ()
{
- //
- // First check if this MemberCore modifier flags has unsafe set
- //
- if ((ModFlags & Modifiers.UNSAFE) != 0)
- return true;
-
- if (parent.UnsafeContext)
- return true;
-
- Expression.UnsafeError (Location);
- return false;
+ caching_flags |= Flags.IsUsed;
}
/// <summary>
/// Returns instance of ObsoleteAttribute for this MemberCore
/// </summary>
- public ObsoleteAttribute GetObsoleteAttribute (DeclSpace ds)
+ public virtual ObsoleteAttribute GetObsoleteAttribute ()
{
// ((flags & (Flags.Obsolete_Undetected | Flags.Obsolete)) == 0) is slower, but why ?
if ((caching_flags & Flags.Obsolete_Undetected) == 0 && (caching_flags & Flags.Obsolete) == 0) {
caching_flags &= ~Flags.Obsolete_Undetected;
- if (OptAttributes == null)
+ if (OptAttributes == null || TypeManager.obsolete_attribute_type == null)
return null;
Attribute obsolete_attr = OptAttributes.Search (
- TypeManager.obsolete_attribute_type, ds.EmitContext);
+ TypeManager.obsolete_attribute_type);
if (obsolete_attr == null)
return null;
- ObsoleteAttribute obsolete = obsolete_attr.GetObsoleteAttribute (ds.EmitContext);
+ ObsoleteAttribute obsolete = obsolete_attr.GetObsoleteAttribute ();
if (obsolete == null)
return null;
return obsolete;
}
+ /// <summary>
+ /// Checks for ObsoleteAttribute presence. It's used for testing of all non-types elements
+ /// </summary>
+ public virtual void CheckObsoleteness (Location loc)
+ {
+ if (Parent != null)
+ Parent.CheckObsoleteness (loc);
+
+ ObsoleteAttribute oa = GetObsoleteAttribute ();
+ if (oa == null) {
+ return;
+ }
+
+ AttributeTester.Report_ObsoleteMessage (oa, GetSignatureForError (), loc);
+ }
+
+ // Access level of a type.
+ const int X = 1;
+ enum AccessLevel
+ { // Each column represents `is this scope larger or equal to Blah scope'
+ // Public Assembly Protected
+ Protected = (0 << 0) | (0 << 1) | (X << 2),
+ Public = (X << 0) | (X << 1) | (X << 2),
+ Private = (0 << 0) | (0 << 1) | (0 << 2),
+ Internal = (0 << 0) | (X << 1) | (0 << 2),
+ ProtectedOrInternal = (0 << 0) | (X << 1) | (X << 2),
+ }
+
+ static AccessLevel GetAccessLevelFromModifiers (int flags)
+ {
+ if ((flags & Modifiers.INTERNAL) != 0) {
+
+ if ((flags & Modifiers.PROTECTED) != 0)
+ return AccessLevel.ProtectedOrInternal;
+ else
+ return AccessLevel.Internal;
+
+ } else if ((flags & Modifiers.PROTECTED) != 0)
+ return AccessLevel.Protected;
+ else if ((flags & Modifiers.PRIVATE) != 0)
+ return AccessLevel.Private;
+ else
+ return AccessLevel.Public;
+ }
+
+ //
+ // Returns the access level for type `t'
+ //
+ static AccessLevel GetAccessLevelFromType (Type t)
+ {
+ if (t.IsPublic)
+ return AccessLevel.Public;
+ if (t.IsNestedPrivate)
+ return AccessLevel.Private;
+ if (t.IsNotPublic)
+ return AccessLevel.Internal;
+
+ if (t.IsNestedPublic)
+ return AccessLevel.Public;
+ if (t.IsNestedAssembly)
+ return AccessLevel.Internal;
+ if (t.IsNestedFamily)
+ return AccessLevel.Protected;
+ if (t.IsNestedFamORAssem)
+ return AccessLevel.ProtectedOrInternal;
+ if (t.IsNestedFamANDAssem)
+ throw new NotImplementedException ("NestedFamANDAssem not implemented, cant make this kind of type from c# anyways");
+
+ // nested private is taken care of
+
+ throw new Exception ("I give up, what are you?");
+ }
+
+ //
+ // Checks whether the type P is as accessible as this member
+ //
+ public bool IsAccessibleAs (Type p)
+ {
+ //
+ // if M is private, its accessibility is the same as this declspace.
+ // we already know that P is accessible to T before this method, so we
+ // may return true.
+ //
+ if ((mod_flags & Modifiers.PRIVATE) != 0)
+ return true;
+
+ while (p.IsArray || p.IsPointer || p.IsByRef)
+ p = TypeManager.GetElementType (p);
+
+#if GMCS_SOURCE
+ if (p.IsGenericParameter)
+ return true;
+
+ if (TypeManager.IsGenericType (p)) {
+ foreach (Type t in p.GetGenericArguments ()) {
+ if (!IsAccessibleAs (t))
+ return false;
+ }
+ }
+#endif
+
+ for (Type p_parent = null; p != null; p = p_parent) {
+ p_parent = p.DeclaringType;
+ AccessLevel pAccess = GetAccessLevelFromType (p);
+ if (pAccess == AccessLevel.Public)
+ continue;
+
+ bool same_access_restrictions = false;
+ for (MemberCore mc = this; !same_access_restrictions && mc != null && mc.Parent != null; mc = mc.Parent) {
+ AccessLevel al = GetAccessLevelFromModifiers (mc.ModFlags);
+ switch (pAccess) {
+ case AccessLevel.Internal:
+ if (al == AccessLevel.Private || al == AccessLevel.Internal)
+ same_access_restrictions = TypeManager.IsThisOrFriendAssembly (p.Assembly);
+
+ break;
+
+ case AccessLevel.Protected:
+ if (al == AccessLevel.Protected) {
+ same_access_restrictions = mc.Parent.IsBaseType (p_parent);
+ break;
+ }
+
+ if (al == AccessLevel.Private) {
+ //
+ // When type is private and any of its parents derives from
+ // protected type then the type is accessible
+ //
+ while (mc.Parent != null) {
+ if (mc.Parent.IsBaseType (p_parent))
+ same_access_restrictions = true;
+ mc = mc.Parent;
+ }
+ }
+
+ break;
+
+ case AccessLevel.ProtectedOrInternal:
+ if (al == AccessLevel.Protected)
+ same_access_restrictions = mc.Parent.IsBaseType (p_parent);
+ else if (al == AccessLevel.Internal)
+ same_access_restrictions = TypeManager.IsThisOrFriendAssembly (p.Assembly);
+ else if (al == AccessLevel.ProtectedOrInternal)
+ same_access_restrictions = mc.Parent.IsBaseType (p_parent) &&
+ TypeManager.IsThisOrFriendAssembly (p.Assembly);
+
+ break;
+
+ case AccessLevel.Private:
+ //
+ // Both are private and share same parent
+ //
+ if (al == AccessLevel.Private)
+ same_access_restrictions = TypeManager.IsEqual (mc.Parent.TypeBuilder, p_parent);
+
+ break;
+
+ default:
+ throw new InternalErrorException (al.ToString ());
+ }
+ }
+
+ if (!same_access_restrictions)
+ return false;
+ }
+
+ return true;
+ }
+
/// <summary>
/// Analyze whether CLS-Compliant verification must be execute for this MemberCore.
/// </summary>
- public override bool IsClsCompliaceRequired (DeclSpace container)
+ public override bool IsClsComplianceRequired ()
{
if ((caching_flags & Flags.ClsCompliance_Undetected) == 0)
return (caching_flags & Flags.ClsCompliant) != 0;
- if (GetClsCompliantAttributeValue (container) && IsExposedFromAssembly (container)) {
+ if (GetClsCompliantAttributeValue () && IsExposedFromAssembly ()) {
caching_flags &= ~Flags.ClsCompliance_Undetected;
caching_flags |= Flags.ClsCompliant;
return true;
/// <summary>
/// Returns true when MemberCore is exposed from assembly.
/// </summary>
- public bool IsExposedFromAssembly (DeclSpace ds)
+ public bool IsExposedFromAssembly ()
{
if ((ModFlags & (Modifiers.PUBLIC | Modifiers.PROTECTED)) == 0)
return false;
- DeclSpace parentContainer = ds;
+ DeclSpace parentContainer = Parent;
while (parentContainer != null && parentContainer.ModFlags != 0) {
if ((parentContainer.ModFlags & (Modifiers.PUBLIC | Modifiers.PROTECTED)) == 0)
return false;
}
/// <summary>
- /// Resolve CLSCompliantAttribute value or gets cached value.
+ /// Goes through class hierarchy and gets value of first found CLSCompliantAttribute.
+ /// If no is attribute exists then assembly CLSCompliantAttribute is returned.
/// </summary>
- bool GetClsCompliantAttributeValue (DeclSpace ds)
+ public virtual bool GetClsCompliantAttributeValue ()
{
- if (OptAttributes != null) {
+ if ((caching_flags & Flags.HasCompliantAttribute_Undetected) == 0)
+ return (caching_flags & Flags.ClsCompliantAttributeTrue) != 0;
+
+ caching_flags &= ~Flags.HasCompliantAttribute_Undetected;
+
+ if (OptAttributes != null && TypeManager.cls_compliant_attribute_type != null) {
Attribute cls_attribute = OptAttributes.Search (
- TypeManager.cls_compliant_attribute_type, ds.EmitContext);
+ TypeManager.cls_compliant_attribute_type);
if (cls_attribute != null) {
caching_flags |= Flags.HasClsCompliantAttribute;
- return cls_attribute.GetClsCompliantAttributeValue (ds.EmitContext);
+ bool value = cls_attribute.GetClsCompliantAttributeValue ();
+ if (value)
+ caching_flags |= Flags.ClsCompliantAttributeTrue;
+ return value;
}
}
- return ds.GetClsCompliantAttributeValue ();
+
+ // It's null for TypeParameter
+ if (Parent == null)
+ return false;
+
+ if (Parent.GetClsCompliantAttributeValue ()) {
+ caching_flags |= Flags.ClsCompliantAttributeTrue;
+ return true;
+ }
+ return false;
}
/// <summary>
/// </summary>
protected bool HasClsCompliantAttribute {
get {
+ if ((caching_flags & Flags.HasCompliantAttribute_Undetected) != 0)
+ GetClsCompliantAttributeValue ();
+
return (caching_flags & Flags.HasClsCompliantAttribute) != 0;
}
}
/// <summary>
- /// It helps to handle error 102 & 111 detection
+ /// Returns true when a member supports multiple overloads (methods, indexers, etc)
/// </summary>
- public virtual bool MarkForDuplicationCheck ()
+ public virtual bool EnableOverloadChecks (MemberCore overload)
{
return false;
}
/// 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)
+ protected virtual bool VerifyClsCompliance ()
{
- if (!IsClsCompliaceRequired (ds)) {
- if (HasClsCompliantAttribute && RootContext.WarningLevel >= 2) {
- if (!IsExposedFromAssembly (ds))
- Report.Warning (3019, Location, "CLS compliance checking will not be performed on '{0}' because it is private or internal", GetSignatureForError ());
+ if (!IsClsComplianceRequired ()) {
+ if (HasClsCompliantAttribute && Report.WarningLevel >= 2) {
+ if (!IsExposedFromAssembly ())
+ Report.Warning (3019, 2, Location, "CLS compliance checking will not be performed on `{0}' because it is not visible from outside this assembly", GetSignatureForError ());
if (!CodeGen.Assembly.IsClsCompliant)
- Report.Warning (3021, Location, "'{0}' does not need a CLSCompliant attribute because the assembly does not have a CLSCompliant attribute", GetSignatureForError ());
+ Report.Warning (3021, 2, Location, "`{0}' does not need a CLSCompliant attribute because the assembly is not marked as CLS-compliant", 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 ());
+ if (HasClsCompliantAttribute) {
+ if (CodeGen.Assembly.ClsCompliantAttribute == null && !CodeGen.Assembly.IsClsCompliant) {
+ Report.Error (3014, Location,
+ "`{0}' cannot be marked as CLS-compliant because the assembly is not marked as CLS-compliant",
+ GetSignatureForError ());
+ return false;
+ }
+
+ if (!Parent.IsClsComplianceRequired ()) {
+ Report.Warning (3018, 1, Location, "`{0}' cannot be marked as CLS-compliant because it is a member of non CLS-compliant type `{1}'",
+ GetSignatureForError (), Parent.GetSignatureForError ());
+ return false;
}
- return false;
}
- int index = Name.LastIndexOf ('.');
- if (Name [index > 0 ? index + 1 : 0] == '_') {
- Report.Error (3008, Location, "Identifier '{0}' is not CLS-compliant", GetSignatureForError () );
+ if (member_name.Name [0] == '_') {
+ Report.Error (3008, Location, "Identifier `{0}' is not CLS-compliant", GetSignatureForError () );
}
return true;
}
- protected abstract void VerifyObsoleteAttribute ();
-
//
// Raised (and passed an XmlElement that contains the comment)
// when GenerateDocComment is writing documentation expectedly.
//
- internal virtual void OnGenerateDocComment (DeclSpace ds, XmlElement intermediateNode)
+ internal virtual void OnGenerateDocComment (XmlElement intermediateNode)
{
}
//
internal virtual void GenerateDocComment (DeclSpace ds)
{
- DocUtil.GenerateDocComment (this, ds);
+ try {
+ DocUtil.GenerateDocComment (this, ds);
+ } catch (Exception e) {
+ throw new InternalErrorException (this, e);
+ }
+ }
+
+ public override IResolveContext ResolveContext {
+ get { return this; }
+ }
+
+ #region IResolveContext Members
+
+ public DeclSpace DeclContainer {
+ get { return Parent; }
}
+
+ public virtual DeclSpace GenericDeclContainer {
+ get { return DeclContainer; }
+ }
+
+ public bool IsInObsoleteScope {
+ get {
+ if (GetObsoleteAttribute () != null)
+ return true;
+
+ return Parent == null ? false : Parent.IsInObsoleteScope;
+ }
+ }
+
+ public bool IsInUnsafeScope {
+ get {
+ if ((ModFlags & Modifiers.UNSAFE) != 0)
+ return true;
+
+ return Parent == null ? false : Parent.IsInUnsafeScope;
+ }
+ }
+
+ #endregion
}
/// <summary>
/// provides the common foundation for managing those name
/// spaces.
/// </remarks>
- public abstract class DeclSpace : MemberCore, IAlias {
+ public abstract class DeclSpace : MemberCore {
/// <summary>
/// This points to the actual definition that is being
/// created with System.Reflection.Emit
/// </summary>
public TypeBuilder TypeBuilder;
+ /// <summary>
+ /// If we are a generic type, this is the type we are
+ /// currently defining. We need to lookup members on this
+ /// instead of the TypeBuilder.
+ /// </summary>
+ public Type CurrentType;
+
//
// This is the namespace in which this typecontainer
// was declared. We use this to resolve names.
private Hashtable Cache = new Hashtable ();
- public string Basename;
+ public readonly string Basename;
protected Hashtable defined_names;
- // The emit context for toplevel objects.
- protected EmitContext ec;
-
- public EmitContext EmitContext {
- get { return ec; }
+ public TypeContainer PartialContainer;
+
+ protected readonly bool is_generic;
+ readonly int count_type_params;
+
+ //
+ // Whether we are Generic
+ //
+ public bool IsGeneric {
+ get {
+ if (is_generic)
+ return true;
+ else if (Parent != null)
+ return Parent.IsGeneric;
+ else
+ return false;
+ }
}
static string[] attribute_targets = new string [] { "type" };
- public DeclSpace (NamespaceEntry ns, TypeContainer parent, MemberName name,
- Attributes attrs, Location l)
- : base (parent, name, attrs, l)
+ public DeclSpace (NamespaceEntry ns, DeclSpace parent, MemberName name,
+ Attributes attrs)
+ : base (parent, name, attrs)
{
NamespaceEntry = ns;
- Basename = name.Name;
+ Basename = name.Basename;
defined_names = new Hashtable ();
+ PartialContainer = null;
+ if (name.TypeArguments != null) {
+ is_generic = true;
+ count_type_params = name.TypeArguments.Count;
+ }
+ if (parent != null)
+ count_type_params += parent.count_type_params;
+ }
+
+ public override DeclSpace GenericDeclContainer {
+ get { return this; }
}
/// <summary>
/// Adds the member to defined_names table. It tests for duplications and enclosing name conflicts
/// </summary>
- protected bool AddToContainer (MemberCore symbol, string fullname, string basename)
+ protected virtual bool AddToContainer (MemberCore symbol, string name)
{
- if (basename == Basename && !(this is Interface)) {
- Report.SymbolRelatedToPreviousError (this);
- Report.Error (542, symbol.Location, "'{0}': member names cannot be the same as their enclosing type", symbol.GetSignatureForError ());
- return false;
- }
-
- MemberCore mc = (MemberCore)defined_names [fullname];
+ MemberCore mc = (MemberCore) defined_names [name];
if (mc == null) {
- defined_names.Add (fullname, symbol);
+ defined_names.Add (name, symbol);
return true;
}
- if (symbol.MarkForDuplicationCheck () && mc.MarkForDuplicationCheck ())
+ if (symbol.EnableOverloadChecks (mc))
return true;
Report.SymbolRelatedToPreviousError (mc);
- Report.Error (102, symbol.Location, "The type '{0}' already contains a definition for '{1}'", GetSignatureForError (), basename);
- return false;
- }
+ if ((mc.ModFlags & Modifiers.PARTIAL) != 0 && (symbol is ClassOrStruct || symbol is Interface)) {
+ Error_MissingPartialModifier (symbol);
+ return false;
+ }
- public void RecordDecl ()
- {
- if ((NamespaceEntry != null) && (Parent == RootContext.Tree.Types))
- NamespaceEntry.DefineName (MemberName.Basename, this);
+ if (this is RootTypes) {
+ Report.Error (101, symbol.Location,
+ "The namespace `{0}' already contains a definition for `{1}'",
+ ((DeclSpace)symbol).NamespaceEntry.GetSignatureForError (), symbol.MemberName.Name);
+ } else if (symbol is TypeParameter) {
+ Report.Error (692, symbol.Location,
+ "Duplicate type parameter `{0}'", name);
+ } else {
+ Report.Error (102, symbol.Location,
+ "The type `{0}' already contains a definition for `{1}'",
+ GetSignatureForError (), symbol.MemberName.Name);
+ }
+
+ return false;
}
/// <summary>
{
return (MemberCore)defined_names [name];
}
-
- bool in_transit = false;
-
- /// <summary>
- /// This function is used to catch recursive definitions
- /// in declarations.
- /// </summary>
- public bool InTransit {
- get {
- return in_transit;
- }
- set {
- in_transit = value;
- }
+ public bool IsStaticClass {
+ get { return (ModFlags & Modifiers.STATIC) != 0; }
}
//
// why there is a non-obvious test down here.
//
public bool IsTopLevel {
- get {
- if (Parent != null){
- if (Parent.Parent == null)
- return true;
- }
- return false;
- }
+ get { return (Parent != null && Parent.Parent == null); }
}
public virtual void CloseType ()
}
}
+ protected virtual TypeAttributes TypeAttr {
+ get { return CodeGen.Module.DefaultCharSetType; }
+ }
+
/// <remarks>
/// Should be overriten by the appropriate declaration space
/// </remarks>
public abstract TypeBuilder DefineType ();
-
+
/// <summary>
/// Define all members, but don't apply any attributes or do anything which may
/// access not-yet-defined classes. This method also creates the MemberCache.
/// </summary>
- public abstract bool DefineMembers (TypeContainer parent);
-
- //
- // Whether this is an `unsafe context'
- //
- public bool UnsafeContext {
- get {
- if ((ModFlags & Modifiers.UNSAFE) != 0)
- return true;
- if (Parent != null)
- return Parent.UnsafeContext;
+ public virtual bool DefineMembers ()
+ {
+ if (((ModFlags & Modifiers.NEW) != 0) && IsTopLevel) {
+ Report.Error (1530, Location, "Keyword `new' is not allowed on namespace elements");
return false;
}
+ return true;
}
- public static string MakeFQN (string nsn, string name)
+ protected void Error_MissingPartialModifier (MemberCore type)
{
- if (nsn == "")
- return name;
- return String.Concat (nsn, ".", name);
+ Report.Error (260, type.Location,
+ "Missing partial modifier on declaration of type `{0}'. Another partial declaration of this type exists",
+ type.GetSignatureForError ());
}
- EmitContext type_resolve_ec;
-
- // <summary>
- // Resolves the expression `e' for a type, and will recursively define
- // types. This should only be used for resolving base types.
- // </summary>
- public TypeExpr ResolveBaseTypeExpr (Expression e, bool silent, Location loc)
+ public override void Emit ()
{
- if (type_resolve_ec == null) {
- // FIXME: I think this should really be one of:
- //
- // a. type_resolve_ec = Parent.EmitContext;
- // b. type_resolve_ec = new EmitContext (Parent, Parent, loc, null, null, ModFlags, false);
- //
- // However, if Parent == RootContext.Tree.Types, its NamespaceEntry will be null.
- //
- type_resolve_ec = new EmitContext (Parent, this, loc, null, null, ModFlags, false);
- type_resolve_ec.ResolvingTypeTree = true;
+#if GMCS_SOURCE
+ if (type_params != null) {
+ int offset = count_type_params - type_params.Length;
+ for (int i = offset; i < type_params.Length; i++)
+ CurrentTypeParameters [i - offset].Emit ();
}
- type_resolve_ec.loc = loc;
- type_resolve_ec.ContainerType = TypeBuilder;
+#endif
- return e.ResolveAsTypeTerminal (type_resolve_ec, silent);
+ base.Emit ();
+ }
+
+ public override string GetSignatureForError ()
+ {
+ if (IsGeneric) {
+ return SimpleName.RemoveGenericArity (Name) + TypeParameter.GetSignatureForError (type_params);
+ }
+ // Parent.GetSignatureForError
+ return Name;
}
public bool CheckAccessLevel (Type check_type)
{
- if (check_type == TypeBuilder)
+ TypeBuilder tb;
+ if (this is GenericMethod)
+ tb = Parent.TypeBuilder;
+ else
+ tb = TypeBuilder;
+
+ check_type = TypeManager.DropGenericTypeArguments (check_type);
+ if (check_type == tb)
return true;
- TypeAttributes check_attr = check_type.Attributes & TypeAttributes.VisibilityMask;
+ 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;
//
// Broken Microsoft runtime, return public for arrays, no matter what
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;
+ if (TypeManager.IsGenericParameter(check_type))
+ return true; // FIXME
+
+ TypeAttributes check_attr = check_type.Attributes & TypeAttributes.VisibilityMask;
switch (check_attr){
case TypeAttributes.Public:
return true;
case TypeAttributes.NotPublic:
- //
- // This test should probably use the declaringtype.
- //
- return check_type.Assembly == TypeBuilder.Assembly;
+
+ 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;
+
+ return TypeManager.IsThisOrFriendAssembly (check_type.Assembly);
case TypeAttributes.NestedPublic:
return true;
case TypeAttributes.NestedPrivate:
- return NestedAccessible (check_type);
+ return NestedAccessible (tb, check_type);
case TypeAttributes.NestedFamily:
- return FamilyAccessible (check_type);
+ //
+ // Only accessible to methods in current type or any subtypes
+ //
+ return FamilyAccessible (tb, check_type);
case TypeAttributes.NestedFamANDAssem:
- return (check_type.Assembly == TypeBuilder.Assembly) &&
- FamilyAccessible (check_type);
+ return TypeManager.IsThisOrFriendAssembly (check_type.Assembly) &&
+ FamilyAccessible (tb, check_type);
case TypeAttributes.NestedFamORAssem:
- return (check_type.Assembly == TypeBuilder.Assembly) ||
- FamilyAccessible (check_type);
+ return FamilyAccessible (tb, check_type) ||
+ TypeManager.IsThisOrFriendAssembly (check_type.Assembly);
case TypeAttributes.NestedAssembly:
- return check_type.Assembly == TypeBuilder.Assembly;
+ return TypeManager.IsThisOrFriendAssembly (check_type.Assembly);
}
Console.WriteLine ("HERE: " + check_attr);
}
- protected bool NestedAccessible (Type check_type)
- {
- 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 ('+');
-
- // 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)
+ protected bool NestedAccessible (Type tb, Type check_type)
{
Type declaring = check_type.DeclaringType;
- if (TypeBuilder == declaring ||
- TypeBuilder.IsSubclassOf (declaring))
- return true;
-
- return NestedAccessible (check_type);
- }
-
- // Access level of a type.
- const int X = 1;
- enum AccessLevel { // Each column represents `is this scope larger or equal to Blah scope'
- // Public Assembly Protected
- Protected = (0 << 0) | (0 << 1) | (X << 2),
- Public = (X << 0) | (X << 1) | (X << 2),
- Private = (0 << 0) | (0 << 1) | (0 << 2),
- Internal = (0 << 0) | (X << 1) | (0 << 2),
- ProtectedOrInternal = (0 << 0) | (X << 1) | (X << 2),
- }
-
- static AccessLevel GetAccessLevelFromModifiers (int flags)
- {
- if ((flags & Modifiers.INTERNAL) != 0) {
-
- if ((flags & Modifiers.PROTECTED) != 0)
- return AccessLevel.ProtectedOrInternal;
- else
- return AccessLevel.Internal;
-
- } else if ((flags & Modifiers.PROTECTED) != 0)
- return AccessLevel.Protected;
-
- else if ((flags & Modifiers.PRIVATE) != 0)
- return AccessLevel.Private;
-
- else
- return AccessLevel.Public;
- }
-
- // What is the effective access level of this?
- // TODO: Cache this?
- AccessLevel EffectiveAccessLevel {
- get {
- AccessLevel myAccess = GetAccessLevelFromModifiers (ModFlags);
- if (!IsTopLevel && (Parent != null))
- return myAccess & Parent.EffectiveAccessLevel;
- else
- return myAccess;
- }
+ return TypeBuilder == declaring ||
+ TypeManager.IsNestedChildOf (TypeBuilder, declaring);
}
- // Return the access level for type `t'
- static AccessLevel TypeEffectiveAccessLevel (Type t)
+ protected bool FamilyAccessible (Type tb, Type check_type)
{
- if (t.IsPublic)
- return AccessLevel.Public;
- if (t.IsNestedPrivate)
- return AccessLevel.Private;
- if (t.IsNotPublic)
- return AccessLevel.Internal;
-
- // By now, it must be nested
- AccessLevel parentLevel = TypeEffectiveAccessLevel (t.DeclaringType);
-
- if (t.IsNestedPublic)
- return parentLevel;
- if (t.IsNestedAssembly)
- return parentLevel & AccessLevel.Internal;
- if (t.IsNestedFamily)
- return parentLevel & AccessLevel.Protected;
- if (t.IsNestedFamORAssem)
- return parentLevel & AccessLevel.ProtectedOrInternal;
- if (t.IsNestedFamANDAssem)
- throw new NotImplementedException ("NestedFamANDAssem not implemented, cant make this kind of type from c# anyways");
-
- // nested private is taken care of
-
- throw new Exception ("I give up, what are you?");
- }
-
- //
- // This answers `is the type P, as accessible as a member M which has the
- // accessability @flags which is declared as a nested member of the type T, this declspace'
- //
- public bool AsAccessible (Type p, int flags)
- {
- //
- // 1) if M is private, its accessability is the same as this declspace.
- // we already know that P is accessible to T before this method, so we
- // may return true.
- //
-
- if ((flags & Modifiers.PRIVATE) != 0)
- return true;
-
- while (p.IsArray || p.IsPointer || p.IsByRef)
- p = TypeManager.GetElementType (p);
-
- AccessLevel pAccess = TypeEffectiveAccessLevel (p);
- AccessLevel mAccess = this.EffectiveAccessLevel &
- GetAccessLevelFromModifiers (flags);
-
- // for every place from which we can access M, we must
- // be able to access P as well. So, we want
- // For every bit in M and P, M_i -> P_1 == true
- // or, ~ (M -> P) == 0 <-> ~ ( ~M | P) == 0
-
- return ~ (~ mAccess | pAccess) == 0;
+ Type declaring = check_type.DeclaringType;
+ return TypeManager.IsNestedFamilyAccessible (TypeBuilder, declaring);
}
-
- static DoubleHash dh = new DoubleHash (1000);
-
- Type DefineTypeAndParents (DeclSpace tc)
- {
- DeclSpace container = tc.Parent;
-
- if (container.TypeBuilder == null && container.Name != "")
- DefineTypeAndParents (container);
- return tc.DefineType ();
- }
-
- FullNamedExpression LookupInterfaceOrClass (string ns, string name, out bool error)
+ public bool IsBaseType (Type baseType)
{
- DeclSpace parent;
- FullNamedExpression result;
- Type t;
- object r;
-
- error = false;
- int p = name.LastIndexOf ('.');
+ if (TypeManager.IsInterfaceType (baseType))
+ throw new NotImplementedException ();
- if (dh.Lookup (ns, name, out r))
- return (FullNamedExpression) 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)) {
- if (p != -1)
- t = TypeManager.LookupType (ns + "." + name);
- else
- t = TypeManager.LookupTypeDirect (ns + "." + name);
- } else
- t = null;
- } else if (p != -1)
- t = TypeManager.LookupType (name);
- else
- t = TypeManager.LookupTypeDirect (name);
- }
-
- if (t != null) {
- result = new TypeExpression (t, Location.Null);
- dh.Insert (ns, name, result);
- return result;
- }
-
- if (ns != "" && Namespace.IsNamespace (ns)) {
- result = Namespace.LookupNamespace (ns, false).Lookup (this, name, Location.Null);
- if (result != null) {
- dh.Insert (ns, name, result);
- return result;
- }
- }
-
- if (ns == "" && Namespace.IsNamespace (name)) {
- result = Namespace.LookupNamespace (name, false);
- dh.Insert (ns, name, result);
- return result;
- }
-
- //
- // In case we are fed a composite name, normalize it.
- //
-
- if (p != -1){
- ns = MakeFQN (ns, name.Substring (0, p));
- name = name.Substring (p+1);
- }
-
- if (ns.IndexOf ('+') != -1)
- ns = ns.Replace ('+', '.');
-
- parent = RootContext.Tree.LookupByNamespace (ns, name);
- if (parent == null) {
- dh.Insert (ns, name, null);
- return null;
- }
+ Type type = TypeBuilder;
+ while (type != null) {
+ if (TypeManager.IsEqual (type, baseType))
+ return true;
- t = DefineTypeAndParents (parent);
- if (t == null){
- error = true;
- return null;
+ type = type.BaseType;
}
-
- result = new TypeExpression (t, Location.Null);
- dh.Insert (ns, name, result);
- return result;
- }
- public static void Error_AmbiguousTypeReference (Location loc, string name, string t1, string t2)
- {
- Report.Error (104, loc,
- "`{0}' is an ambiguous reference ({1} or {2})",
- name, t1, t2);
+ return false;
}
- /// <summary>
- /// GetType is used to resolve type names at the DeclSpace level.
- /// Use this to lookup class/struct bases, interface bases or
- /// delegate type references
- /// </summary>
- ///
- /// <remarks>
- /// Contrast this to LookupType which is used inside method bodies to
- /// lookup types that have already been defined. GetType is used
- /// during the tree resolution process and potentially define
- /// recursively the type
- /// </remarks>
- public FullNamedExpression FindType (Location loc, string name)
+ private Type LookupNestedTypeInHierarchy (string name)
{
- FullNamedExpression t;
- bool error;
-
- //
- // For the case the type we are looking for is nested within this one
- // or is in any base class
- //
-
- DeclSpace containing_ds = this;
-
- while (containing_ds != null){
- Type container_type = containing_ds.TypeBuilder;
- Type current_type = container_type;
-
- while (current_type != null && current_type != TypeManager.object_type) {
- string pre = current_type.FullName;
-
- t = LookupInterfaceOrClass (pre, name, out error);
- if (error)
- return null;
-
- if ((t != null) && containing_ds.CheckAccessLevel (t.Type))
- return t;
-
- current_type = current_type.BaseType;
- }
- containing_ds = containing_ds.Parent;
- }
-
- //
- // Attempt to lookup the class on our namespace and all it's implicit parents
- //
- for (NamespaceEntry ns = NamespaceEntry; ns != null; ns = ns.ImplicitParent) {
- t = LookupInterfaceOrClass (ns.FullName, name, out error);
- if (error)
+ Type t = null;
+ // if the member cache has been created, lets use it.
+ // the member cache is MUCH faster.
+ if (MemberCache != null) {
+ t = MemberCache.FindNestedType (name);
+ if (t == null)
return null;
- if (t != null)
- return t;
- }
-
//
- // Attempt to do a direct unqualified lookup
+ // FIXME: This hack is needed because member cache does not work
+ // with nested base generic types, it does only type name copy and
+ // not type construction
//
- t = LookupInterfaceOrClass ("", name, out error);
- if (error)
- return null;
-
- if (t != null)
+#if !GMCS_SOURCE
return t;
-
- //
- // Attempt to lookup the class on any of the `using'
- // namespaces
- //
+#endif
+ }
- for (NamespaceEntry ns = NamespaceEntry; ns != null; ns = ns.Parent){
+ // no member cache. Do it the hard way -- reflection
+ for (Type current_type = TypeBuilder;
+ current_type != null && current_type != TypeManager.object_type;
+ current_type = current_type.BaseType) {
+
+ Type ct = TypeManager.DropGenericTypeArguments (current_type);
+ if (ct is TypeBuilder) {
+ TypeContainer tc = ct == TypeBuilder
+ ? PartialContainer : TypeManager.LookupTypeContainer (ct);
+ if (tc != null)
+ t = tc.FindNestedType (name);
+ } else {
+ t = TypeManager.GetNestedType (ct, name);
+ }
- t = LookupInterfaceOrClass (ns.FullName, name, out error);
- if (error)
- return null;
+ if ((t == null) || !CheckAccessLevel (t))
+ continue;
- if (t != null)
+#if GMCS_SOURCE
+ if (!TypeManager.IsGenericType (current_type))
return t;
- if (name.IndexOf ('.') > 0)
- continue;
+ Type[] args = TypeManager.GetTypeArguments (current_type);
+ Type[] targs = TypeManager.GetTypeArguments (t);
+ for (int i = 0; i < args.Length; i++)
+ targs [i] = args [i];
- t = ns.LookupAlias (name);
- if (t != null)
- return t;
+ t = t.MakeGenericType (targs);
+#endif
- //
- // Now check the using clause list
- //
- FullNamedExpression match = null;
- foreach (Namespace using_ns in ns.GetUsingTable ()) {
- match = LookupInterfaceOrClass (using_ns.Name, name, out error);
- if (error)
- return null;
-
- if ((match != null) && (match is TypeExpr)) {
- Type matched = ((TypeExpr) match).Type;
- if (!CheckAccessLevel (matched))
- continue;
- if (t != null){
- Error_AmbiguousTypeReference (loc, name, t.FullName, match.FullName);
- return null;
- }
- t = match;
- }
- }
- if (t != null)
- return t;
+ return t;
}
- //Report.Error (246, Location, "Can not find type `"+name+"'");
+ return null;
+ }
+
+ public virtual ExtensionMethodGroupExpr LookupExtensionMethod (Type extensionType, string name, Location loc)
+ {
return null;
}
//
- // Public function used to locate types, this can only
- // be used after the ResolveTree function has been invoked.
+ // Public function used to locate types.
//
- // Returns: Type or null if they type can not be found.
+ // Set 'ignore_cs0104' to true if you want to ignore cs0104 errors.
//
- // Come to think of it, this should be a DeclSpace
+ // Returns: Type or null if they type can not be found.
//
- public FullNamedExpression LookupType (string name, bool silent, Location loc)
+ public FullNamedExpression LookupNamespaceOrType (string name, Location loc, bool ignore_cs0104)
{
- FullNamedExpression e;
-
- if (Cache.Contains (name)) {
- e = (FullNamedExpression) Cache [name];
- } else {
- //
- // For the case the type we are looking for is nested within this one
- // or is in any base class
- //
- DeclSpace containing_ds = this;
- while (containing_ds != null){
-
- // if the member cache has been created, lets use it.
- // the member cache is MUCH faster.
- if (containing_ds.MemberCache != null) {
- Type t = containing_ds.MemberCache.FindNestedType (name);
- if (t == null) {
- containing_ds = containing_ds.Parent;
- continue;
- }
+ if (Cache.Contains (name))
+ return (FullNamedExpression) Cache [name];
- e = new TypeExpression (t, Location.Null);
- Cache [name] = e;
- return e;
- }
-
- // no member cache. Do it the hard way -- reflection
- Type current_type = containing_ds.TypeBuilder;
-
- while (current_type != null &&
- current_type != TypeManager.object_type) {
- //
- // nested class
- //
- Type t = TypeManager.LookupType (current_type.FullName + "." + name);
- if (t != null){
- e = new TypeExpression (t, Location.Null);
- Cache [name] = e;
- return e;
- }
-
- current_type = current_type.BaseType;
- }
-
- containing_ds = containing_ds.Parent;
- }
-
- e = NamespaceEntry.LookupNamespaceOrType (this, name, loc);
- if (!silent || e != null)
- Cache [name] = e;
- }
+ FullNamedExpression e;
+ int errors = Report.Errors;
+ Type t = LookupNestedTypeInHierarchy (name);
+ if (t != null)
+ e = new TypeExpression (t, Location.Null);
+ else if (Parent != null)
+ e = Parent.LookupNamespaceOrType (name, loc, ignore_cs0104);
+ else
+ e = NamespaceEntry.LookupNamespaceOrType (this, name, loc, ignore_cs0104);
- if (e == null && !silent)
- Report.Error (246, loc, "Cannot find type `"+name+"'");
+ if (errors == Report.Errors)
+ Cache [name] = e;
return e;
}
/// be used while the type is still being created since it doesn't use the cache
/// and relies on the filter doing the member name check.
/// </remarks>
- public abstract MemberList FindMembers (MemberTypes mt, BindingFlags bf,
- MemberFilter filter, object criteria);
+ ///
+ // [Obsolete ("Only MemberCache approach should be used")]
+ public virtual MemberList FindMembers (MemberTypes mt, BindingFlags bf,
+ MemberFilter filter, object criteria)
+ {
+ throw new NotSupportedException ();
+ }
/// <remarks>
/// If we have a MemberCache, return it. This property may return null if the
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);
+ if (a.Type == TypeManager.required_attr_type) {
+ Report.Error (1608, a.Location, "The RequiredAttribute attribute is not permitted on C# types");
+ return;
}
+ TypeBuilder.SetCustomAttribute (cb);
}
- /// <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 ()
+ //
+ // Extensions for generics
+ //
+ protected TypeParameter[] type_params;
+ TypeParameter[] type_param_list;
+
+ bool check_type_parameter (ArrayList list, int start, string name)
{
- if ((caching_flags & Flags.HasCompliantAttribute_Undetected) == 0)
- return (caching_flags & Flags.ClsCompliantAttributeTrue) != 0;
+ for (int i = 0; i < start; i++) {
+ TypeParameter param = (TypeParameter) list [i];
- caching_flags &= ~Flags.HasCompliantAttribute_Undetected;
+ if (param.Name != name)
+ continue;
- if (OptAttributes != null) {
- Attribute cls_attribute = OptAttributes.Search (TypeManager.cls_compliant_attribute_type, ec);
- if (cls_attribute != null) {
- caching_flags |= Flags.HasClsCompliantAttribute;
- if (cls_attribute.GetClsCompliantAttributeValue (ec)) {
- caching_flags |= Flags.ClsCompliantAttributeTrue;
- return true;
+ Report.SymbolRelatedToPreviousError (Parent);
+ // TODO: Location is wrong (parent instead of child)
+ Report.Warning (693, 3, Location,
+ "Type parameter `{0}' has the same name as the type parameter from outer type `{1}'",
+ name, Parent.GetSignatureForError ());
+
+ return false;
+ }
+
+ return true;
+ }
+
+ TypeParameter[] initialize_type_params ()
+ {
+ if (type_param_list != null)
+ return type_param_list;
+
+ DeclSpace the_parent = Parent;
+ if (this is GenericMethod)
+ the_parent = null;
+
+ int start = 0;
+ ArrayList list = new ArrayList ();
+ if (the_parent != null && the_parent.IsGeneric) {
+ // FIXME: move generics info out of DeclSpace
+ TypeParameter[] parent_params = the_parent.PartialContainer.TypeParameters;
+ start = parent_params.Length;
+ list.AddRange (parent_params);
+ }
+
+ int count = type_params != null ? type_params.Length : 0;
+ for (int i = 0; i < count; i++) {
+ TypeParameter param = type_params [i];
+ check_type_parameter (list, start, param.Name);
+ list.Add (param);
+ }
+
+ type_param_list = new TypeParameter [list.Count];
+ list.CopyTo (type_param_list, 0);
+ return type_param_list;
+ }
+
+ public virtual void SetParameterInfo (ArrayList constraints_list)
+ {
+ if (!is_generic) {
+ if (constraints_list != null) {
+ Report.Error (
+ 80, Location, "Constraints are not allowed " +
+ "on non-generic declarations");
+ }
+
+ return;
+ }
+
+ TypeParameterName[] names = MemberName.TypeArguments.GetDeclarations ();
+ type_params = new TypeParameter [names.Length];
+
+ //
+ // Register all the names
+ //
+ for (int i = 0; i < type_params.Length; i++) {
+ TypeParameterName name = names [i];
+
+ Constraints constraints = null;
+ if (constraints_list != null) {
+ int total = constraints_list.Count;
+ for (int ii = 0; ii < total; ++ii) {
+ Constraints constraints_at = (Constraints)constraints_list[ii];
+ // TODO: it is used by iterators only
+ if (constraints_at == null) {
+ constraints_list.RemoveAt (ii);
+ --total;
+ continue;
+ }
+ if (constraints_at.TypeParameter == name.Name) {
+ constraints = constraints_at;
+ constraints_list.RemoveAt(ii);
+ break;
+ }
}
- return false;
}
+
+ type_params [i] = new TypeParameter (
+ Parent, this, name.Name, constraints, name.OptAttributes,
+ Location);
+
+ AddToContainer (type_params [i], name.Name);
}
- if (Parent == null) {
- if (CodeGen.Assembly.IsClsCompliant) {
- caching_flags |= Flags.ClsCompliantAttributeTrue;
- return true;
+ if (constraints_list != null && constraints_list.Count > 0) {
+ foreach (Constraints constraint in constraints_list) {
+ Report.Error(699, constraint.Location, "`{0}': A constraint references nonexistent type parameter `{1}'",
+ GetSignatureForError (), constraint.TypeParameter);
}
- return false;
}
+ }
- if (Parent.GetClsCompliantAttributeValue ()) {
- caching_flags |= Flags.ClsCompliantAttributeTrue;
- return true;
+ public TypeParameter[] TypeParameters {
+ get {
+ if (!IsGeneric)
+ throw new InvalidOperationException ();
+ if ((PartialContainer != null) && (PartialContainer != this))
+ return PartialContainer.TypeParameters;
+ if (type_param_list == null)
+ initialize_type_params ();
+
+ return type_param_list;
}
- return false;
}
- public override string[] ValidAttributeTargets {
+ public TypeParameter[] CurrentTypeParameters {
get {
- return attribute_targets;
+ if (!IsGeneric)
+ throw new InvalidOperationException ();
+
+ // TODO: Something is seriously broken here
+ if (type_params == null)
+ return new TypeParameter [0];
+
+ return type_params;
}
}
- bool IAlias.IsType {
- get { return true; }
+ public int CountTypeParameters {
+ get {
+ return count_type_params;
+ }
}
- string IAlias.Name {
- get { return Name; }
+ public TypeParameterExpr LookupGeneric (string name, Location loc)
+ {
+ if (!IsGeneric)
+ return null;
+
+ TypeParameter [] current_params;
+ if (this is TypeContainer)
+ current_params = PartialContainer.CurrentTypeParameters;
+ else
+ current_params = CurrentTypeParameters;
+
+ foreach (TypeParameter type_param in current_params) {
+ if (type_param.Name == name)
+ return new TypeParameterExpr (type_param, loc);
+ }
+
+ if (Parent != null)
+ return Parent.LookupGeneric (name, loc);
+
+ return null;
}
- TypeExpr IAlias.ResolveAsType (EmitContext ec)
+ // Used for error reporting only
+ public virtual Type LookupAnyGeneric (string typeName)
{
- if (TypeBuilder == null)
- throw new InvalidOperationException ();
+ return NamespaceEntry.NS.LookForAnyGenericType (typeName);
+ }
+
+ public override string[] ValidAttributeTargets {
+ get { return attribute_targets; }
+ }
+
+ protected override bool VerifyClsCompliance ()
+ {
+ if (!base.VerifyClsCompliance ()) {
+ return false;
+ }
+
+ if (type_params != null) {
+ foreach (TypeParameter tp in type_params) {
+ if (tp.Constraints == null)
+ continue;
+
+ tp.Constraints.VerifyClsCompliance ();
+ }
+ }
+
+ IDictionary cache = TypeManager.AllClsTopLevelTypes;
+ if (cache == null)
+ return true;
+
+ string lcase = Name.ToLower (System.Globalization.CultureInfo.InvariantCulture);
+ if (!cache.Contains (lcase)) {
+ cache.Add (lcase, this);
+ return true;
+ }
- return new TypeExpression (TypeBuilder, Location);
+ object val = cache [lcase];
+ if (val == null) {
+ Type t = AttributeTester.GetImportedIgnoreCaseClsType (lcase);
+ if (t == null)
+ return true;
+ Report.SymbolRelatedToPreviousError (t);
+ }
+ else {
+ Report.SymbolRelatedToPreviousError ((DeclSpace)val);
+ }
+#if GMCS_SOURCE
+ Report.Warning (3005, 1, Location, "Identifier `{0}' differing only in case is not CLS-compliant", GetSignatureForError ());
+#else
+ Report.Error (3005, Location, "Identifier `{0}' differing only in case is not CLS-compliant", GetSignatureForError ());
+#endif
+ return true;
}
}
List = list;
}
- public static readonly MemberList Empty = new MemberList (new ArrayList ());
+ public static readonly MemberList Empty = new MemberList (new ArrayList (0));
/// <summary>
/// Cast the MemberList into a MemberInfo[] array.
/// this method is called multiple times with different BindingFlags.
/// </remarks>
MemberList GetMembers (MemberTypes mt, BindingFlags bf);
-
- /// <summary>
- /// Return the container's member cache.
- /// </summary>
- MemberCache MemberCache {
- get;
- }
}
/// <summary>
// If we have a base class (we have a base class unless we're
// TypeManager.object_type), we deep-copy its MemberCache here.
if (Container.BaseCache != null)
- member_hash = DeepCopy (Container.BaseCache.member_hash);
+ member_hash = SetupCache (Container.BaseCache);
else
member_hash = new Hashtable ();
// If this is neither a dynamic type nor an interface, create a special
// method cache with all declared and inherited methods.
Type type = container.Type;
- if (!(type is TypeBuilder) && !type.IsInterface) {
- if (Container.BaseCache != null)
- method_hash = DeepCopy (Container.BaseCache.method_hash);
- else
- method_hash = new Hashtable ();
+ if (!(type is TypeBuilder) && !type.IsInterface &&
+ // !(type.IsGenericType && (type.GetGenericTypeDefinition () is TypeBuilder)) &&
+ !TypeManager.IsGenericType (type) && !TypeManager.IsGenericParameter (type) &&
+ (Container.BaseCache == null || Container.BaseCache.method_hash != null)) {
+ method_hash = new Hashtable ();
AddMethods (type);
}
Timer.StopTimer (TimerType.CacheInit);
}
+ public MemberCache (Type baseType, IMemberContainer container)
+ {
+ this.Container = container;
+ if (baseType == null)
+ this.member_hash = new Hashtable ();
+ else
+ this.member_hash = SetupCache (TypeManager.LookupMemberCache (baseType));
+ }
+
public MemberCache (Type[] ifaces)
{
//
AddCacheContents (TypeManager.LookupMemberCache (itype));
}
+ public MemberCache (IMemberContainer container, Type base_class, Type[] ifaces)
+ {
+ this.Container = container;
+
+ // If we have a base class (we have a base class unless we're
+ // TypeManager.object_type), we deep-copy its MemberCache here.
+ if (Container.BaseCache != null)
+ member_hash = SetupCache (Container.BaseCache);
+ else
+ member_hash = new Hashtable ();
+
+ if (base_class != null)
+ AddCacheContents (TypeManager.LookupMemberCache (base_class));
+ if (ifaces != null) {
+ foreach (Type itype in ifaces) {
+ MemberCache cache = TypeManager.LookupMemberCache (itype);
+ if (cache != null)
+ AddCacheContents (cache);
+ }
+ }
+ }
+
/// <summary>
- /// Return a a deep-copy of the hashtable @other.
+ /// Bootstrap this member cache by doing a deep-copy of our base.
/// </summary>
- Hashtable DeepCopy (Hashtable other)
+ static Hashtable SetupCache (MemberCache base_class)
{
- Hashtable hash = new Hashtable ();
-
- if (other == null)
- return hash;
+ if (base_class == null)
+ return new Hashtable ();
- IDictionaryEnumerator it = other.GetEnumerator ();
+ Hashtable hash = new Hashtable (base_class.member_hash.Count);
+ IDictionaryEnumerator it = base_class.member_hash.GetEnumerator ();
while (it.MoveNext ()) {
- hash [it.Key] = ((ArrayList) it.Value).Clone ();
+ hash.Add (it.Key, ((ArrayList) it.Value).Clone ());
}
return hash;
}
+
+ //
+ // Converts ModFlags to BindingFlags
+ //
+ static BindingFlags GetBindingFlags (int modifiers)
+ {
+ BindingFlags bf;
+ if ((modifiers & Modifiers.STATIC) != 0)
+ bf = BindingFlags.Static;
+ else
+ bf = BindingFlags.Instance;
+
+ if ((modifiers & Modifiers.PRIVATE) != 0)
+ bf |= BindingFlags.NonPublic;
+ else
+ bf |= BindingFlags.Public;
+
+ return bf;
+ }
/// <summary>
/// Add the contents of `cache' to the member_hash.
AddMembers (mt, BindingFlags.Instance | BindingFlags.NonPublic, container);
}
+ public void AddMember (MemberInfo mi, MemberCore mc)
+ {
+ AddMember (mi.MemberType, GetBindingFlags (mc.ModFlags), Container, mi.Name, mi);
+ }
+
+ public void AddGenericMember (MemberInfo mi, MemberCore mc)
+ {
+ AddMember (mi.MemberType, GetBindingFlags (mc.ModFlags), Container, mc.MemberName.Basename, mi);
+ }
+
+ public void AddNestedType (DeclSpace type)
+ {
+ AddMember (MemberTypes.NestedType, GetBindingFlags (type.ModFlags), (IMemberContainer) type.Parent,
+ type.TypeBuilder.Name, type.TypeBuilder);
+ }
+
+ public void AddInterface (MemberCache baseCache)
+ {
+ if (baseCache.member_hash.Count > 0)
+ AddCacheContents (baseCache);
+ }
+
+ void AddMember (MemberTypes mt, BindingFlags bf, IMemberContainer container,
+ string name, MemberInfo member)
+ {
+ // We use a name-based hash table of ArrayList's.
+ ArrayList list = (ArrayList) member_hash [name];
+ if (list == null) {
+ list = new ArrayList (1);
+ member_hash.Add (name, list);
+ }
+
+ // When this method is called for the current class, the list will
+ // already contain all inherited members from our base classes.
+ // We cannot add new members in front of the list since this'd be an
+ // expensive operation, that's why the list is sorted in reverse order
+ // (ie. members from the current class are coming last).
+ list.Add (new CacheEntry (container, member, mt, bf));
+ }
+
/// <summary>
/// Add all members from class `container' with the requested MemberTypes and
/// BindingFlags to the cache. This method is called multiple times with different
foreach (MemberInfo member in members) {
string name = member.Name;
- // We use a name-based hash table of ArrayList's.
- ArrayList list = (ArrayList) member_hash [name];
- if (list == null) {
- list = new ArrayList ();
- member_hash.Add (name, list);
- }
+ AddMember (mt, bf, container, name, member);
- // When this method is called for the current class, the list will
- // already contain all inherited members from our base classes.
- // We cannot add new members in front of the list since this'd be an
- // expensive operation, that's why the list is sorted in reverse order
- // (ie. members from the current class are coming last).
- list.Add (new CacheEntry (container, member, mt, bf));
+ if (member is MethodInfo) {
+ string gname = TypeManager.GetMethodName ((MethodInfo) member);
+ if (gname != name)
+ AddMember (mt, bf, container, gname, member);
+ }
}
}
AddMethods (BindingFlags.Instance | BindingFlags.NonPublic, type);
}
+ static ArrayList overrides = new ArrayList ();
+
void AddMethods (BindingFlags bf, Type type)
{
- //
- // Consider the case:
- //
- // class X { public virtual int f() {} }
- // class Y : X {}
- //
- // When processing 'Y', the method_cache will already have a copy of 'f',
- // with ReflectedType == X. However, we want to ensure that its ReflectedType == Y
- //
MethodBase [] members = type.GetMethods (bf);
Array.Reverse (members);
// We use a name-based hash table of ArrayList's.
ArrayList list = (ArrayList) method_hash [name];
if (list == null) {
- list = new ArrayList ();
+ list = new ArrayList (1);
method_hash.Add (name, list);
}
- Type declaring_type = member.DeclaringType;
- if (declaring_type == type) {
- list.Add (new CacheEntry (Container, member, MemberTypes.Method, bf | BindingFlags.DeclaredOnly));
- continue;
- }
+ MethodInfo curr = (MethodInfo) member;
+ while (curr.IsVirtual && (curr.Attributes & MethodAttributes.NewSlot) == 0) {
+ MethodInfo base_method = curr.GetBaseDefinition ();
- int n = list.Count;
- while (n-- > 0) {
- CacheEntry entry = (CacheEntry) list [n];
- MethodBase old = entry.Member as MethodBase;
-
- if (member.MethodHandle.Value == old.MethodHandle.Value &&
- declaring_type == old.DeclaringType) {
- list [n] = new CacheEntry (entry, member);
+ if (base_method == curr)
+ // Not every virtual function needs to have a NewSlot flag.
break;
- }
+
+ overrides.Add (curr);
+ list.Add (new CacheEntry (null, base_method, MemberTypes.Method, bf));
+ curr = base_method;
+ }
+
+ if (overrides.Count > 0) {
+ for (int i = 0; i < overrides.Count; ++i)
+ TypeManager.RegisterOverride ((MethodBase) overrides [i], curr);
+ overrides.Clear ();
}
- if (n < 0)
- throw new InternalErrorException ("cannot find inherited member " + member + " in base classes of " + type);
+ // Unfortunately, the elements returned by Type.GetMethods() aren't
+ // sorted so we need to do this check for every member.
+ BindingFlags new_bf = bf;
+ if (member.DeclaringType == type)
+ new_bf |= BindingFlags.DeclaredOnly;
+
+ list.Add (new CacheEntry (Container, member, MemberTypes.Method, new_bf));
}
}
Property = 0x200,
NestedType = 0x400,
+ NotExtensionMethod = 0x800,
+
MaskType = Constructor|Event|Field|Method|Property|NestedType
}
protected class CacheEntry {
public readonly IMemberContainer Container;
- public readonly EntryType EntryType;
+ public EntryType EntryType;
public readonly MemberInfo Member;
public CacheEntry (IMemberContainer container, MemberInfo member,
this.EntryType = GetEntryType (mt, bf);
}
- public CacheEntry (CacheEntry other, MemberInfo update)
- {
- this.Container = other.Container;
- this.EntryType = other.EntryType & ~EntryType.Declared;
- this.Member = update;
- }
-
public override string ToString ()
{
return String.Format ("CacheEntry ({0}:{1}:{2})", Container.Name,
{
if (using_global)
throw new Exception ();
-
+
bool declared_only = (bf & BindingFlags.DeclaredOnly) != 0;
bool method_search = mt == MemberTypes.Method;
// If we have a method cache and we aren't already doing a method-only search,
IMemberContainer current = Container;
+ bool do_interface_search = current.IsInterface;
// `applicable' is a list of all members with the given member name `name'
// in the current class and all its base classes. The list is sorted in
// iteration of this loop if there are no members with the name we're
// looking for in the current class).
if (entry.Container != current) {
- if (declared_only || DoneSearching (global))
+ if (declared_only)
+ break;
+
+ if (!do_interface_search && DoneSearching (global))
break;
current = entry.Container;
// Apply the filter to it.
if (filter (entry.Member, criteria)) {
- if ((entry.EntryType & EntryType.MaskType) != EntryType.Method)
+ if ((entry.EntryType & EntryType.MaskType) != EntryType.Method) {
do_method_search = false;
+ }
+
+ // Because interfaces support multiple inheritance we have to be sure that
+ // base member is from same interface, so only top level member will be returned
+ if (do_interface_search && global.Count > 0) {
+ bool member_already_exists = false;
+
+ foreach (MemberInfo mi in global) {
+ if (mi is MethodBase)
+ continue;
+
+ if (IsInterfaceBaseInterface (TypeManager.GetInterfaces (mi.DeclaringType), entry.Member.DeclaringType)) {
+ member_already_exists = true;
+ break;
+ }
+ }
+ if (member_already_exists)
+ continue;
+ }
+
global.Add (entry.Member);
}
}
global.CopyTo (copy);
return copy;
}
+
+ /// <summary>
+ /// Returns true if iterface exists in any base interfaces (ifaces)
+ /// </summary>
+ static bool IsInterfaceBaseInterface (Type[] ifaces, Type ifaceToFind)
+ {
+ foreach (Type iface in ifaces) {
+ if (iface == ifaceToFind)
+ return true;
+
+ Type[] base_ifaces = TypeManager.GetInterfaces (iface);
+ if (base_ifaces.Length > 0 && IsInterfaceBaseInterface (base_ifaces, ifaceToFind))
+ return true;
+ }
+ return false;
+ }
// find the nested type @name in @this.
public Type FindNestedType (string name)
return null;
}
+
+ public MemberInfo FindBaseEvent (Type invocation_type, string name)
+ {
+ ArrayList applicable = (ArrayList) member_hash [name];
+ if (applicable == null)
+ return null;
+
+ //
+ // Walk the chain of events, starting from the top.
+ //
+ for (int i = applicable.Count - 1; i >= 0; i--)
+ {
+ CacheEntry entry = (CacheEntry) applicable [i];
+ if ((entry.EntryType & EntryType.Event) == 0)
+ continue;
+
+ EventInfo ei = (EventInfo)entry.Member;
+ return ei.GetAddMethod (true);
+ }
+
+ return null;
+ }
+
+ //
+ // Looks for extension methods with defined name and extension type
+ //
+ public ArrayList FindExtensionMethods (Type extensionType, string name, bool publicOnly)
+ {
+ ArrayList entries;
+ if (method_hash != null)
+ entries = (ArrayList)method_hash [name];
+ else
+ entries = (ArrayList)member_hash [name];
+
+ if (entries == null)
+ return null;
+
+ EntryType entry_type = EntryType.Static | EntryType.Method | EntryType.NotExtensionMethod;
+ if (publicOnly) {
+ entry_type |= EntryType.Public;
+ }
+ EntryType found_entry_type = entry_type & ~EntryType.NotExtensionMethod;
+
+ ArrayList candidates = null;
+ foreach (CacheEntry entry in entries) {
+ if ((entry.EntryType & entry_type) == found_entry_type) {
+ MethodBase mb = (MethodBase)entry.Member;
+
+ IMethodData md = TypeManager.GetMethod (mb);
+ ParameterData pd = md == null ?
+ TypeManager.GetParameterData (mb) : md.ParameterInfo;
+
+ Type ex_type = pd.ExtensionMethodType;
+ if (ex_type == null) {
+ entry.EntryType |= EntryType.NotExtensionMethod;
+ continue;
+ }
+
+ //if (implicit conversion between ex_type and extensionType exist) {
+ if (candidates == null)
+ candidates = new ArrayList (2);
+ candidates.Add (mb);
+ //}
+ }
+ }
+
+ return candidates;
+ }
//
- // This finds the method or property for us to override. invocationType is the type where
+ // This finds the method or property for us to override. invocation_type is the type where
// the override is going to be declared, name is the name of the method/property, and
- // paramTypes is the parameters, if any to the method or property
+ // param_types is the parameters, if any to the method or property
//
// Because the MemberCache holds members from this class and all the base classes,
// we can avoid tons of reflection stuff.
//
- public MemberInfo FindMemberToOverride (Type invocationType, string name, Type [] paramTypes, bool is_property)
+ public MemberInfo FindMemberToOverride (Type invocation_type, string name, Type [] param_types, GenericMethod generic_method, bool is_property)
{
ArrayList applicable;
if (method_hash != null && !is_property)
PropertyInfo pi = null;
MethodInfo mi = null;
FieldInfo fi = null;
- Type [] cmpAttrs = null;
+ Type [] cmp_attrs = null;
if (is_property) {
if ((entry.EntryType & EntryType.Field) != 0) {
// TODO: For this case we ignore member type
//fb = TypeManager.GetField (fi);
- //cmpAttrs = new Type[] { fb.MemberType };
+ //cmp_attrs = new Type[] { fb.MemberType };
} else {
pi = (PropertyInfo) entry.Member;
- cmpAttrs = TypeManager.GetArgumentTypes (pi);
+ cmp_attrs = TypeManager.GetArgumentTypes (pi);
}
} else {
mi = (MethodInfo) entry.Member;
- cmpAttrs = TypeManager.GetArgumentTypes (mi);
+ cmp_attrs = TypeManager.GetParameterData (mi).Types;
}
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;
+ case FieldAttributes.PrivateScope:
+ continue;
+ 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 (!invocation_type.Equals (entry.Container.Type) &&
+ !TypeManager.IsNestedChildOf (invocation_type, 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
//
- if (cmpAttrs.Length != paramTypes.Length)
+ if (cmp_attrs.Length != param_types.Length)
continue;
- for (int j = cmpAttrs.Length - 1; j >= 0; j --)
- if (paramTypes [j] != cmpAttrs [j])
- goto next;
-
+ int j;
+ for (j = 0; j < cmp_attrs.Length; ++j)
+ if (!TypeManager.IsEqual (param_types [j], cmp_attrs [j]))
+ break;
+ if (j < cmp_attrs.Length)
+ continue;
+
+ //
+ // check generic arguments for methods
+ //
+ if (mi != null) {
+ Type [] cmpGenArgs = TypeManager.GetGenericArguments (mi);
+ if (generic_method == null && cmpGenArgs.Length != 0)
+ continue;
+ if (generic_method != null && cmpGenArgs.Length != generic_method.TypeParameters.Length)
+ continue;
+ }
+
//
// get one of the methods because this has the visibility info.
//
// Check visibility
//
switch (mi.Attributes & MethodAttributes.MemberAccessMask) {
+ case MethodAttributes.PrivateScope:
+ continue;
case MethodAttributes.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))
- return entry.Member;
-
+ if (!invocation_type.Equals (entry.Container.Type) &&
+ !TypeManager.IsNestedChildOf (invocation_type, entry.Container.Type))
+ continue;
break;
case MethodAttributes.FamANDAssem:
case MethodAttributes.Assembly:
//
// Check for assembly methods
//
- if (mi.DeclaringType.Assembly == CodeGen.Assembly.Builder)
- return entry.Member;
-
+ if (!TypeManager.IsThisOrFriendAssembly (mi.DeclaringType.Assembly))
+ continue;
break;
- default:
- //
- // A protected method is ok, because we are overriding.
- // public is always ok.
- //
- return entry.Member;
}
- next:
- ;
+ return entry.Member;
}
return null;
/// <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)
+ ///
+ // TODO: refactor as method is always 'this'
+ public static void VerifyClsParameterConflict (ArrayList al, MethodCore method, MemberInfo this_builder)
{
EntryType tested_type = (method is Constructor ? EntryType.Constructor : EntryType.Method) | EntryType.Public;
continue;
MethodBase method_to_compare = (MethodBase)entry.Member;
- if (AttributeTester.AreOverloadedMethodParamsClsCompliant (method.ParameterTypes, TypeManager.GetArgumentTypes (method_to_compare)))
+ AttributeTester.Result result = AttributeTester.AreOverloadedMethodParamsClsCompliant (
+ method.ParameterTypes, TypeManager.GetParameterData (method_to_compare).Types);
+
+ if (result == AttributeTester.Result.Ok)
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))
+ if (md != null && !md.IsClsComplianceRequired ())
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 ());
+ switch (result) {
+ case AttributeTester.Result.RefOutArrayError:
+ Report.Error (3006, method.Location, "Overloaded method `{0}' differing only in ref or out, or in array rank, is not CLS-compliant", method.GetSignatureForError ());
+ continue;
+ case AttributeTester.Result.ArrayArrayError:
+ Report.Error (3007, method.Location, "Overloaded method `{0}' differing only by unnamed array types is not CLS-compliant", method.GetSignatureForError ());
+ continue;
+ }
+
+ throw new NotImplementedException (result.ToString ());
}
}
+
+ public bool CheckExistingMembersOverloads (MemberCore member, string name, Parameters parameters)
+ {
+ ArrayList entries = (ArrayList)member_hash [name];
+ if (entries == null)
+ return true;
+
+ int method_param_count = parameters.Count;
+ for (int i = entries.Count - 1; i >= 0; --i) {
+ CacheEntry ce = (CacheEntry) entries [i];
+
+ if (ce.Container != member.Parent.PartialContainer)
+ return true;
+
+ Type [] p_types;
+ ParameterData pd = null;
+ if ((ce.EntryType & EntryType.Property) != 0) {
+ p_types = TypeManager.GetArgumentTypes ((PropertyInfo) ce.Member);
+ } else {
+ MethodBase mb = (MethodBase) ce.Member;
+#if GMCS_SOURCE
+ // TODO: This is more like a hack, because we are adding generic methods
+ // twice with and without arity name
+ if (mb.IsGenericMethod && !member.MemberName.IsGeneric)
+ continue;
+#endif
+ pd = TypeManager.GetParameterData (mb);
+ p_types = pd.Types;
+ }
+
+ if (p_types.Length != method_param_count)
+ continue;
+
+ if (method_param_count > 0) {
+ int ii = method_param_count - 1;
+ Type type_a, type_b;
+ do {
+ type_a = parameters.ParameterType (ii);
+ type_b = p_types [ii];
+#if GMCS_SOURCE
+ if (type_a.IsGenericParameter && type_a.DeclaringMethod != null)
+ type_a = null;
+
+ if (type_b.IsGenericParameter && type_b.DeclaringMethod != null)
+ type_b = null;
+#endif
+ } while (type_a == type_b && ii-- != 0);
+
+ if (ii >= 0)
+ continue;
+
+ //
+ // Operators can differ in return type only
+ //
+ if (member is Operator) {
+ Operator op = TypeManager.GetMethod ((MethodBase) ce.Member) as Operator;
+ if (op != null && op.ReturnType != ((Operator) member).ReturnType)
+ continue;
+ }
+
+ //
+ // Report difference in parameter modifiers only
+ //
+ if (pd != null && !(member is AbstractPropertyEventMethod)) {
+ ii = method_param_count;
+ while (ii-- != 0 && parameters.ParameterModifier (ii) == pd.ParameterModifier (ii) &&
+ parameters.ExtensionMethodType == pd.ExtensionMethodType);
+
+ if (ii >= 0) {
+ MethodCore mc = TypeManager.GetMethod ((MethodBase) ce.Member) as MethodCore;
+ Report.SymbolRelatedToPreviousError (ce.Member);
+ if ((member.ModFlags & Modifiers.PARTIAL) != 0 && (mc.ModFlags & Modifiers.PARTIAL) != 0) {
+ if (parameters.HasParams || pd.HasParams) {
+ Report.Error (758, member.Location,
+ "A partial method declaration and partial method implementation cannot differ on use of `params' modifier");
+ } else {
+ Report.Error (755, member.Location,
+ "A partial method declaration and partial method implementation must be both an extension method or neither");
+ }
+ } else {
+ Report.Error (663, member.Location,
+ "An overloaded method `{0}' cannot differ on use of parameter modifiers only",
+ member.GetSignatureForError ());
+ }
+ return false;
+ }
+ }
+ }
+
+ if ((ce.EntryType & EntryType.Method) != 0) {
+ Method method_a = member as Method;
+ Method method_b = TypeManager.GetMethod ((MethodBase) ce.Member) as Method;
+ if (method_a != null && method_b != null && (method_a.ModFlags & method_b.ModFlags & Modifiers.PARTIAL) != 0) {
+ const int partial_modifiers = Modifiers.STATIC | Modifiers.UNSAFE;
+ if (method_a.IsPartialDefinition == method_b.IsPartialImplementation) {
+ if ((method_a.ModFlags & partial_modifiers) == (method_b.ModFlags & partial_modifiers) ||
+ method_a.Parent.IsInUnsafeScope && method_b.Parent.IsInUnsafeScope) {
+ if (method_a.IsPartialImplementation) {
+ method_a.SetPartialDefinition (method_b);
+ entries.RemoveAt (i);
+ } else {
+ method_b.SetPartialDefinition (method_a);
+ }
+ continue;
+ }
+
+ if ((method_a.ModFlags & Modifiers.STATIC) != (method_b.ModFlags & Modifiers.STATIC)) {
+ Report.SymbolRelatedToPreviousError (ce.Member);
+ Report.Error (763, member.Location,
+ "A partial method declaration and partial method implementation must be both `static' or neither");
+ }
+
+ Report.SymbolRelatedToPreviousError (ce.Member);
+ Report.Error (764, member.Location,
+ "A partial method declaration and partial method implementation must be both `unsafe' or neither");
+ return false;
+ }
+
+ Report.SymbolRelatedToPreviousError (ce.Member);
+ if (method_a.IsPartialDefinition) {
+ Report.Error (756, member.Location, "A partial method `{0}' declaration is already defined",
+ member.GetSignatureForError ());
+ }
+
+ Report.Error (757, member.Location, "A partial method `{0}' implementation is already defined",
+ member.GetSignatureForError ());
+ return false;
+ }
+
+ Report.SymbolRelatedToPreviousError (ce.Member);
+ IMethodData duplicate_member = TypeManager.GetMethod ((MethodBase) ce.Member);
+ if (member is Operator && duplicate_member is Operator) {
+ Report.Error (557, member.Location, "Duplicate user-defined conversion in type `{0}'",
+ member.Parent.GetSignatureForError ());
+ return false;
+ }
+
+ bool is_reserved_a = member is AbstractPropertyEventMethod || member is Operator;
+ bool is_reserved_b = duplicate_member is AbstractPropertyEventMethod || duplicate_member is Operator;
+
+ if (is_reserved_a || is_reserved_b) {
+ Report.Error (82, member.Location, "A member `{0}' is already reserved",
+ is_reserved_a ?
+ TypeManager.GetFullNameSignature (ce.Member) :
+ member.GetSignatureForError ());
+ return false;
+ }
+ } else {
+ Report.SymbolRelatedToPreviousError (ce.Member);
+ }
+
+ Report.Error (111, member.Location,
+ "A member `{0}' is already defined. Rename this member or use different parameter types",
+ member.GetSignatureForError ());
+ return false;
+ }
+
+ return true;
+ }
}
}
projects / mono.git / blobdiff