2 // decl.cs: Declaration base class for structs, classes, enums and interfaces.
4 // Author: Miguel de Icaza (miguel@gnu.org)
5 // Marek Safar (marek.safar@seznam.cz)
7 // Dual licensed under the terms of the MIT X11 or GNU GPL
9 // Copyright 2001 Ximian, Inc (http://www.ximian.com)
10 // Copyright 2004-2008 Novell, Inc
11 // Copyright 2011 Xamarin Inc
16 using System.Collections.Generic;
17 using System.Diagnostics;
19 using Mono.CompilerServices.SymbolWriter;
22 using XmlElement = System.Object;
28 using IKVM.Reflection;
29 using IKVM.Reflection.Emit;
31 using System.Reflection;
32 using System.Reflection.Emit;
35 namespace Mono.CSharp {
38 // Better name would be DottenName
40 [DebuggerDisplay ("{GetSignatureForError()}")]
41 public class MemberName
43 public static readonly MemberName Null = new MemberName ("");
45 public readonly string Name;
46 public TypeParameters TypeParameters;
47 public readonly FullNamedExpression ExplicitInterface;
48 public readonly Location Location;
50 public readonly MemberName Left;
52 public MemberName (string name)
53 : this (name, Location.Null)
56 public MemberName (string name, Location loc)
57 : this (null, name, loc)
60 public MemberName (string name, TypeParameters tparams, Location loc)
65 this.TypeParameters = tparams;
68 public MemberName (string name, TypeParameters tparams, FullNamedExpression explicitInterface, Location loc)
69 : this (name, tparams, loc)
71 this.ExplicitInterface = explicitInterface;
74 public MemberName (MemberName left, string name, Location loc)
81 public MemberName (MemberName left, string name, FullNamedExpression explicitInterface, Location loc)
82 : this (left, name, loc)
84 this.ExplicitInterface = explicitInterface;
87 public MemberName (MemberName left, MemberName right)
89 this.Name = right.Name;
90 this.Location = right.Location;
91 this.TypeParameters = right.TypeParameters;
97 return TypeParameters == null ? 0 : TypeParameters.Count;
101 public bool IsGeneric {
103 return TypeParameters != null;
107 public string Basename {
109 if (TypeParameters != null)
110 return MakeName (Name, TypeParameters);
115 public void CreateMetadataName (StringBuilder sb)
118 Left.CreateMetadataName (sb);
120 if (sb.Length != 0) {
124 sb.Append (Basename);
127 public string GetSignatureForDocumentation ()
131 if (ExplicitInterface != null)
132 s = ExplicitInterface.GetSignatureForError () + "." + s;
137 return Left.GetSignatureForDocumentation () + "." + s;
140 public string GetSignatureForError ()
142 string s = TypeParameters == null ? null : "<" + TypeParameters.GetSignatureForError () + ">";
145 if (ExplicitInterface != null)
146 s = ExplicitInterface.GetSignatureForError () + "." + s;
151 return Left.GetSignatureForError () + "." + s;
154 public override bool Equals (object other)
156 return Equals (other as MemberName);
159 public bool Equals (MemberName other)
163 if (other == null || Name != other.Name)
166 if ((TypeParameters != null) &&
167 (other.TypeParameters == null || TypeParameters.Count != other.TypeParameters.Count))
170 if ((TypeParameters == null) && (other.TypeParameters != null))
174 return other.Left == null;
176 return Left.Equals (other.Left);
179 public override int GetHashCode ()
181 int hash = Name.GetHashCode ();
182 for (MemberName n = Left; n != null; n = n.Left)
183 hash ^= n.Name.GetHashCode ();
185 if (TypeParameters != null)
186 hash ^= TypeParameters.Count << 5;
188 return hash & 0x7FFFFFFF;
191 public static string MakeName (string name, TypeParameters args)
196 return name + "`" + args.Count;
200 public class SimpleMemberName
203 public Location Location;
205 public SimpleMemberName (string name, Location loc)
213 /// Base representation for members. This is used to keep track
214 /// of Name, Location and Modifier flags, and handling Attributes.
216 [System.Diagnostics.DebuggerDisplay ("{GetSignatureForError()}")]
217 public abstract class MemberCore : Attributable, IMemberContext, IMemberDefinition
219 string IMemberDefinition.Name {
221 return member_name.Name;
225 // Is not readonly because of IndexerName attribute
226 private MemberName member_name;
227 public MemberName MemberName {
228 get { return member_name; }
232 /// Modifier flags that the user specified in the source code
234 private Modifiers mod_flags;
235 public Modifiers ModFlags {
238 if ((value & Modifiers.COMPILER_GENERATED) != 0)
239 caching_flags = Flags.IsUsed | Flags.IsAssigned;
246 public virtual ModuleContainer Module {
248 return Parent.Module;
252 public /*readonly*/ TypeContainer Parent;
255 /// Location where this declaration happens
257 public Location Location {
258 get { return member_name.Location; }
262 /// XML documentation comment
264 protected string comment;
267 /// Represents header string for documentation comment
268 /// for each member types.
270 public abstract string DocCommentHeader { get; }
274 Obsolete_Undetected = 1, // Obsolete attribute has not been detected yet
275 Obsolete = 1 << 1, // Type has obsolete attribute
276 ClsCompliance_Undetected = 1 << 2, // CLS Compliance has not been detected yet
277 ClsCompliant = 1 << 3, // Type is CLS Compliant
278 CloseTypeCreated = 1 << 4, // Tracks whether we have Closed the type
279 HasCompliantAttribute_Undetected = 1 << 5, // Presence of CLSCompliantAttribute has not been detected
280 HasClsCompliantAttribute = 1 << 6, // Type has CLSCompliantAttribute
281 ClsCompliantAttributeFalse = 1 << 7, // Member has CLSCompliant(false)
282 Excluded_Undetected = 1 << 8, // Conditional attribute has not been detected yet
283 Excluded = 1 << 9, // Method is conditional
284 MethodOverloadsExist = 1 << 10, // Test for duplication must be performed
286 IsAssigned = 1 << 12, // Field is assigned
287 HasExplicitLayout = 1 << 13,
288 PartialDefinitionExists = 1 << 14, // Set when corresponding partial method definition exists
289 HasStructLayout = 1 << 15, // Has StructLayoutAttribute
290 HasInstanceConstructor = 1 << 16,
291 HasUserOperators = 1 << 17,
292 CanBeReused = 1 << 18,
293 InterfacesExpanded = 1 << 19
297 /// MemberCore flags at first detected then cached
299 internal Flags caching_flags;
301 protected MemberCore (TypeContainer parent, MemberName name, Attributes attrs)
303 this.Parent = parent;
305 caching_flags = Flags.Obsolete_Undetected | Flags.ClsCompliance_Undetected | Flags.HasCompliantAttribute_Undetected | Flags.Excluded_Undetected;
306 AddAttributes (attrs, this);
309 protected virtual void SetMemberName (MemberName new_name)
311 member_name = new_name;
314 public virtual void Accept (StructuralVisitor visitor)
316 visitor.Visit (this);
319 protected bool CheckAbstractAndExtern (bool has_block)
321 if (Parent.PartialContainer.Kind == MemberKind.Interface)
325 if ((ModFlags & Modifiers.EXTERN) != 0) {
326 Report.Error (179, Location, "`{0}' cannot declare a body because it is marked extern",
327 GetSignatureForError ());
331 if ((ModFlags & Modifiers.ABSTRACT) != 0) {
332 Report.Error (500, Location, "`{0}' cannot declare a body because it is marked abstract",
333 GetSignatureForError ());
337 if ((ModFlags & (Modifiers.ABSTRACT | Modifiers.EXTERN | Modifiers.PARTIAL)) == 0 && !(Parent is Delegate)) {
338 if (Compiler.Settings.Version >= LanguageVersion.V_3) {
339 Property.PropertyMethod pm = this as Property.PropertyMethod;
340 if (pm is Indexer.GetIndexerMethod || pm is Indexer.SetIndexerMethod)
343 if (pm != null && pm.Property.AccessorSecond == null) {
344 Report.Error (840, Location,
345 "`{0}' must have a body because it is not marked abstract or extern. The property can be automatically implemented when you define both accessors",
346 GetSignatureForError ());
351 Report.Error (501, Location, "`{0}' must have a body because it is not marked abstract, extern, or partial",
352 GetSignatureForError ());
360 protected void CheckProtectedModifier ()
362 if ((ModFlags & Modifiers.PROTECTED) == 0)
365 if (Parent.PartialContainer.Kind == MemberKind.Struct) {
366 Report.Error (666, Location, "`{0}': Structs cannot contain protected members",
367 GetSignatureForError ());
371 if ((Parent.ModFlags & Modifiers.STATIC) != 0) {
372 Report.Error (1057, Location, "`{0}': Static classes cannot contain protected members",
373 GetSignatureForError ());
377 if ((Parent.ModFlags & Modifiers.SEALED) != 0 && (ModFlags & Modifiers.OVERRIDE) == 0 &&
378 !(this is Destructor)) {
379 Report.Warning (628, 4, Location, "`{0}': new protected member declared in sealed class",
380 GetSignatureForError ());
385 public abstract bool Define ();
387 public virtual string DocComment {
397 // Returns full member name for error message
399 public virtual string GetSignatureForError ()
401 var parent = Parent.GetSignatureForError ();
403 return member_name.GetSignatureForError ();
405 return parent + "." + member_name.GetSignatureForError ();
409 /// Base Emit method. This is also entry point for CLS-Compliant verification.
411 public virtual void Emit ()
413 if (!Compiler.Settings.VerifyClsCompliance)
416 VerifyClsCompliance ();
419 public bool IsAvailableForReuse {
421 return (caching_flags & Flags.CanBeReused) != 0;
424 caching_flags = value ? (caching_flags | Flags.CanBeReused) : (caching_flags & ~Flags.CanBeReused);
428 public bool IsCompilerGenerated {
430 if ((mod_flags & Modifiers.COMPILER_GENERATED) != 0)
433 return Parent != null && Parent.IsCompilerGenerated;
437 public bool IsImported {
443 public virtual bool IsUsed {
445 return (caching_flags & Flags.IsUsed) != 0;
449 protected Report Report {
451 return Compiler.Report;
455 public void SetIsUsed ()
457 caching_flags |= Flags.IsUsed;
460 public void SetIsAssigned ()
462 caching_flags |= Flags.IsAssigned;
465 public virtual void SetConstraints (List<Constraints> constraints_list)
467 var tparams = member_name.TypeParameters;
468 if (tparams == null) {
469 Report.Error (80, Location, "Constraints are not allowed on non-generic declarations");
473 foreach (var c in constraints_list) {
474 var tp = tparams.Find (c.TypeParameter.Value);
476 Report.Error (699, c.Location, "`{0}': A constraint references nonexistent type parameter `{1}'",
477 GetSignatureForError (), c.TypeParameter.Value);
486 /// Returns instance of ObsoleteAttribute for this MemberCore
488 public virtual ObsoleteAttribute GetAttributeObsolete ()
490 if ((caching_flags & (Flags.Obsolete_Undetected | Flags.Obsolete)) == 0)
493 caching_flags &= ~Flags.Obsolete_Undetected;
495 if (OptAttributes == null)
498 Attribute obsolete_attr = OptAttributes.Search (Module.PredefinedAttributes.Obsolete);
499 if (obsolete_attr == null)
502 caching_flags |= Flags.Obsolete;
504 ObsoleteAttribute obsolete = obsolete_attr.GetObsoleteAttribute ();
505 if (obsolete == null)
512 // Checks whether the type P is as accessible as this member
514 public bool IsAccessibleAs (TypeSpec p)
517 // if M is private, its accessibility is the same as this declspace.
518 // we already know that P is accessible to T before this method, so we
521 if ((mod_flags & Modifiers.PRIVATE) != 0)
524 while (TypeManager.HasElementType (p))
525 p = TypeManager.GetElementType (p);
527 if (p.IsGenericParameter)
530 for (TypeSpec p_parent; p != null; p = p_parent) {
531 p_parent = p.DeclaringType;
534 foreach (TypeSpec t in p.TypeArguments) {
535 if (!IsAccessibleAs (t))
540 var pAccess = p.Modifiers & Modifiers.AccessibilityMask;
541 if (pAccess == Modifiers.PUBLIC)
544 bool same_access_restrictions = false;
545 for (MemberCore mc = this; !same_access_restrictions && mc != null && mc.Parent != null; mc = mc.Parent) {
546 var al = mc.ModFlags & Modifiers.AccessibilityMask;
548 case Modifiers.INTERNAL:
549 if (al == Modifiers.PRIVATE || al == Modifiers.INTERNAL)
550 same_access_restrictions = p.MemberDefinition.IsInternalAsPublic (mc.Module.DeclaringAssembly);
554 case Modifiers.PROTECTED:
555 if (al == Modifiers.PROTECTED) {
556 same_access_restrictions = mc.Parent.PartialContainer.IsBaseTypeDefinition (p_parent);
560 if (al == Modifiers.PRIVATE) {
562 // When type is private and any of its parents derives from
563 // protected type then the type is accessible
565 while (mc.Parent != null && mc.Parent.PartialContainer != null) {
566 if (mc.Parent.PartialContainer.IsBaseTypeDefinition (p_parent)) {
567 same_access_restrictions = true;
577 case Modifiers.PROTECTED | Modifiers.INTERNAL:
578 if (al == Modifiers.INTERNAL)
579 same_access_restrictions = p.MemberDefinition.IsInternalAsPublic (mc.Module.DeclaringAssembly);
580 else if (al == (Modifiers.PROTECTED | Modifiers.INTERNAL))
581 same_access_restrictions = mc.Parent.PartialContainer.IsBaseTypeDefinition (p_parent) && p.MemberDefinition.IsInternalAsPublic (mc.Module.DeclaringAssembly);
582 else if (al == Modifiers.PROTECTED)
583 goto case Modifiers.PROTECTED;
584 else if (al == Modifiers.PRIVATE) {
585 if (p.MemberDefinition.IsInternalAsPublic (mc.Module.DeclaringAssembly)) {
586 same_access_restrictions = true;
588 goto case Modifiers.PROTECTED;
594 case Modifiers.PRIVATE:
596 // Both are private and share same parent
598 if (al == Modifiers.PRIVATE) {
599 var decl = mc.Parent;
601 same_access_restrictions = decl.CurrentType.MemberDefinition == p_parent.MemberDefinition;
602 } while (!same_access_restrictions && !decl.PartialContainer.IsTopLevel && (decl = decl.Parent) != null);
608 throw new InternalErrorException (al.ToString ());
612 if (!same_access_restrictions)
620 /// Analyze whether CLS-Compliant verification must be execute for this MemberCore.
622 public override bool IsClsComplianceRequired ()
624 if ((caching_flags & Flags.ClsCompliance_Undetected) == 0)
625 return (caching_flags & Flags.ClsCompliant) != 0;
627 caching_flags &= ~Flags.ClsCompliance_Undetected;
629 if (HasClsCompliantAttribute) {
630 if ((caching_flags & Flags.ClsCompliantAttributeFalse) != 0)
633 caching_flags |= Flags.ClsCompliant;
637 if (Parent.IsClsComplianceRequired ()) {
638 caching_flags |= Flags.ClsCompliant;
645 public virtual string[] ConditionalConditions ()
651 /// Returns true when MemberCore is exposed from assembly.
653 public bool IsExposedFromAssembly ()
655 if ((ModFlags & (Modifiers.PUBLIC | Modifiers.PROTECTED)) == 0)
656 return this is NamespaceContainer;
658 var parentContainer = Parent.PartialContainer;
659 while (parentContainer != null) {
660 if ((parentContainer.ModFlags & (Modifiers.PUBLIC | Modifiers.PROTECTED)) == 0)
663 parentContainer = parentContainer.Parent.PartialContainer;
670 // Does extension methods look up to find a method which matches name and extensionType.
671 // Search starts from this namespace and continues hierarchically up to top level.
673 public ExtensionMethodCandidates LookupExtensionMethod (string name, int arity)
677 var ns = m as NamespaceContainer;
679 return ns.LookupExtensionMethod (this, name, arity, 0);
687 public virtual FullNamedExpression LookupNamespaceAlias (string name)
689 return Parent.LookupNamespaceAlias (name);
692 public virtual FullNamedExpression LookupNamespaceOrType (string name, int arity, LookupMode mode, Location loc)
694 return Parent.LookupNamespaceOrType (name, arity, mode, loc);
698 /// Goes through class hierarchy and gets value of first found CLSCompliantAttribute.
699 /// If no is attribute exists then assembly CLSCompliantAttribute is returned.
701 public bool? CLSAttributeValue {
703 if ((caching_flags & Flags.HasCompliantAttribute_Undetected) == 0) {
704 if ((caching_flags & Flags.HasClsCompliantAttribute) == 0)
707 return (caching_flags & Flags.ClsCompliantAttributeFalse) == 0;
710 caching_flags &= ~Flags.HasCompliantAttribute_Undetected;
712 if (OptAttributes != null) {
713 Attribute cls_attribute = OptAttributes.Search (Module.PredefinedAttributes.CLSCompliant);
714 if (cls_attribute != null) {
715 caching_flags |= Flags.HasClsCompliantAttribute;
716 if (cls_attribute.GetClsCompliantAttributeValue ())
719 caching_flags |= Flags.ClsCompliantAttributeFalse;
729 /// Returns true if MemberCore is explicitly marked with CLSCompliantAttribute
731 protected bool HasClsCompliantAttribute {
733 return CLSAttributeValue.HasValue;
738 /// Returns true when a member supports multiple overloads (methods, indexers, etc)
740 public virtual bool EnableOverloadChecks (MemberCore overload)
746 /// The main virtual method for CLS-Compliant verifications.
747 /// The method returns true if member is CLS-Compliant and false if member is not
748 /// CLS-Compliant which means that CLS-Compliant tests are not necessary. A descendants override it
749 /// and add their extra verifications.
751 protected virtual bool VerifyClsCompliance ()
753 if (HasClsCompliantAttribute) {
754 if (!Module.DeclaringAssembly.HasCLSCompliantAttribute) {
755 Attribute a = OptAttributes.Search (Module.PredefinedAttributes.CLSCompliant);
756 if ((caching_flags & Flags.ClsCompliantAttributeFalse) != 0) {
757 Report.Warning (3021, 2, a.Location,
758 "`{0}' does not need a CLSCompliant attribute because the assembly is not marked as CLS-compliant",
759 GetSignatureForError ());
761 Report.Warning (3014, 1, a.Location,
762 "`{0}' cannot be marked as CLS-compliant because the assembly is not marked as CLS-compliant",
763 GetSignatureForError ());
768 if (!IsExposedFromAssembly ()) {
769 Attribute a = OptAttributes.Search (Module.PredefinedAttributes.CLSCompliant);
770 Report.Warning (3019, 2, a.Location, "CLS compliance checking will not be performed on `{0}' because it is not visible from outside this assembly", GetSignatureForError ());
774 if ((caching_flags & Flags.ClsCompliantAttributeFalse) != 0) {
775 if (Parent is Interface && Parent.IsClsComplianceRequired ()) {
776 Report.Warning (3010, 1, Location, "`{0}': CLS-compliant interfaces must have only CLS-compliant members", GetSignatureForError ());
777 } else if (Parent.Kind == MemberKind.Class && (ModFlags & Modifiers.ABSTRACT) != 0 && Parent.IsClsComplianceRequired ()) {
778 Report.Warning (3011, 1, Location, "`{0}': only CLS-compliant members can be abstract", GetSignatureForError ());
784 if (Parent.Kind != MemberKind.Namespace && Parent.Kind != 0 && !Parent.IsClsComplianceRequired ()) {
785 Attribute a = OptAttributes.Search (Module.PredefinedAttributes.CLSCompliant);
786 Report.Warning (3018, 1, a.Location, "`{0}' cannot be marked as CLS-compliant because it is a member of non CLS-compliant type `{1}'",
787 GetSignatureForError (), Parent.GetSignatureForError ());
791 if (!IsExposedFromAssembly ())
794 if (!Parent.IsClsComplianceRequired ())
798 if (member_name.Name [0] == '_') {
799 Warning_IdentifierNotCompliant ();
802 if (member_name.TypeParameters != null)
803 member_name.TypeParameters.VerifyClsCompliance ();
808 protected void Warning_IdentifierNotCompliant ()
810 Report.Warning (3008, 1, MemberName.Location, "Identifier `{0}' is not CLS-compliant", GetSignatureForError ());
813 public virtual string GetCallerMemberName ()
815 return MemberName.Name;
819 // Returns a string that represents the signature for this
820 // member which should be used in XML documentation.
822 public abstract string GetSignatureForDocumentation ();
824 public virtual void GetCompletionStartingWith (string prefix, List<string> results)
826 Parent.GetCompletionStartingWith (prefix, results);
830 // Generates xml doc comments (if any), and if required,
831 // handle warning report.
833 internal virtual void GenerateDocComment (DocumentationBuilder builder)
835 if (DocComment == null) {
836 if (IsExposedFromAssembly ()) {
837 Constructor c = this as Constructor;
838 if (c == null || !c.IsDefault ())
839 Report.Warning (1591, 4, Location,
840 "Missing XML comment for publicly visible type or member `{0}'", GetSignatureForError ());
847 builder.GenerateDocumentationForMember (this);
848 } catch (Exception e) {
849 throw new InternalErrorException (this, e);
853 public virtual void WriteDebugSymbol (MonoSymbolFile file)
857 #region IMemberContext Members
859 public virtual CompilerContext Compiler {
861 return Module.Compiler;
865 public virtual TypeSpec CurrentType {
866 get { return Parent.CurrentType; }
869 public MemberCore CurrentMemberDefinition {
873 public virtual TypeParameters CurrentTypeParameters {
877 public bool IsObsolete {
879 if (GetAttributeObsolete () != null)
882 return Parent != null && Parent.IsObsolete;
886 public bool IsUnsafe {
888 if ((ModFlags & Modifiers.UNSAFE) != 0)
891 return Parent != null && Parent.IsUnsafe;
895 public bool IsStatic {
897 return (ModFlags & Modifiers.STATIC) != 0;
905 // Base member specification. A member specification contains
906 // member details which can alter in the context (e.g. generic instances)
908 public abstract class MemberSpec
911 public enum StateFlags
913 Obsolete_Undetected = 1, // Obsolete attribute has not been detected yet
914 Obsolete = 1 << 1, // Member has obsolete attribute
915 CLSCompliant_Undetected = 1 << 2, // CLSCompliant attribute has not been detected yet
916 CLSCompliant = 1 << 3, // Member is CLS Compliant
917 MissingDependency_Undetected = 1 << 4,
918 MissingDependency = 1 << 5,
919 HasDynamicElement = 1 << 6,
920 ConstraintsChecked = 1 << 7,
922 IsAccessor = 1 << 9, // Method is an accessor
923 IsGeneric = 1 << 10, // Member contains type arguments
925 PendingMetaInflate = 1 << 12,
926 PendingMakeMethod = 1 << 13,
927 PendingMemberCacheMembers = 1 << 14,
928 PendingBaseTypeInflate = 1 << 15,
929 InterfacesExpanded = 1 << 16,
930 IsNotCSharpCompatible = 1 << 17,
931 SpecialRuntimeType = 1 << 18,
932 InflatedExpressionType = 1 << 19,
933 InflatedNullableType = 1 << 20,
934 GenericIterateInterface = 1 << 21,
935 GenericTask = 1 << 22,
936 InterfacesImported = 1 << 23,
940 // Some flags can be copied directly from other member
942 protected const StateFlags SharedStateFlags =
943 StateFlags.CLSCompliant | StateFlags.CLSCompliant_Undetected |
944 StateFlags.Obsolete | StateFlags.Obsolete_Undetected |
945 StateFlags.MissingDependency | StateFlags.MissingDependency_Undetected |
946 StateFlags.HasDynamicElement;
948 protected Modifiers modifiers;
949 public StateFlags state;
950 protected IMemberDefinition definition;
951 public readonly MemberKind Kind;
952 protected TypeSpec declaringType;
956 public int ID = counter++;
959 protected MemberSpec (MemberKind kind, TypeSpec declaringType, IMemberDefinition definition, Modifiers modifiers)
962 this.declaringType = declaringType;
963 this.definition = definition;
964 this.modifiers = modifiers;
966 if (kind == MemberKind.MissingType)
967 state = StateFlags.MissingDependency;
969 state = StateFlags.Obsolete_Undetected | StateFlags.CLSCompliant_Undetected | StateFlags.MissingDependency_Undetected;
974 public virtual int Arity {
980 public TypeSpec DeclaringType {
982 return declaringType;
985 declaringType = value;
989 public IMemberDefinition MemberDefinition {
995 public Modifiers Modifiers {
1004 public virtual string Name {
1006 return definition.Name;
1010 public bool IsAbstract {
1011 get { return (modifiers & Modifiers.ABSTRACT) != 0; }
1014 public bool IsAccessor {
1016 return (state & StateFlags.IsAccessor) != 0;
1019 state = value ? state | StateFlags.IsAccessor : state & ~StateFlags.IsAccessor;
1024 // Return true when this member is a generic in C# terms
1025 // A nested non-generic type of generic type will return false
1027 public bool IsGeneric {
1029 return (state & StateFlags.IsGeneric) != 0;
1032 state = value ? state | StateFlags.IsGeneric : state & ~StateFlags.IsGeneric;
1037 // Returns true for imported members which are not compatible with C# language
1039 public bool IsNotCSharpCompatible {
1041 return (state & StateFlags.IsNotCSharpCompatible) != 0;
1044 state = value ? state | StateFlags.IsNotCSharpCompatible : state & ~StateFlags.IsNotCSharpCompatible;
1048 public bool IsPrivate {
1049 get { return (modifiers & Modifiers.PRIVATE) != 0; }
1052 public bool IsPublic {
1053 get { return (modifiers & Modifiers.PUBLIC) != 0; }
1056 public bool IsStatic {
1058 return (modifiers & Modifiers.STATIC) != 0;
1064 public virtual void CheckObsoleteness (IMemberContext mc, Location loc)
1066 var oa = GetAttributeObsolete ();
1071 AttributeTester.Report_ObsoleteMessage (oa, GetSignatureForError (), loc, mc.Module.Compiler.Report);
1074 public virtual ObsoleteAttribute GetAttributeObsolete ()
1076 if ((state & (StateFlags.Obsolete | StateFlags.Obsolete_Undetected)) == 0)
1079 state &= ~StateFlags.Obsolete_Undetected;
1081 var oa = definition.GetAttributeObsolete ();
1083 state |= StateFlags.Obsolete;
1089 // Returns a list of missing dependencies of this member. The list
1090 // will contain types only but it can have numerous values for members
1091 // like methods where both return type and all parameters are checked
1093 public List<MissingTypeSpecReference> GetMissingDependencies ()
1095 return GetMissingDependencies (this);
1098 public List<MissingTypeSpecReference> GetMissingDependencies (MemberSpec caller)
1100 if ((state & (StateFlags.MissingDependency | StateFlags.MissingDependency_Undetected)) == 0)
1103 state &= ~StateFlags.MissingDependency_Undetected;
1105 var imported = definition as ImportedDefinition;
1106 List<MissingTypeSpecReference> missing;
1107 if (imported != null) {
1108 missing = ResolveMissingDependencies (caller);
1109 } else if (this is ElementTypeSpec) {
1110 missing = ((ElementTypeSpec) this).Element.GetMissingDependencies (caller);
1115 if (missing != null) {
1116 state |= StateFlags.MissingDependency;
1122 public abstract List<MissingTypeSpecReference> ResolveMissingDependencies (MemberSpec caller);
1124 protected virtual bool IsNotCLSCompliant (out bool attrValue)
1126 var cls = MemberDefinition.CLSAttributeValue;
1127 attrValue = cls ?? false;
1128 return cls == false;
1131 public virtual string GetSignatureForDocumentation ()
1133 return DeclaringType.GetSignatureForDocumentation () + "." + Name;
1136 public virtual string GetSignatureForError ()
1138 var bf = MemberDefinition as Property.BackingFieldDeclaration;
1143 name = bf.OriginalProperty.MemberName.Name;
1146 return DeclaringType.GetSignatureForError () + "." + name;
1149 public virtual MemberSpec InflateMember (TypeParameterInflator inflator)
1151 var inflated = (MemberSpec) MemberwiseClone ();
1152 inflated.declaringType = inflator.TypeInstance;
1153 if (DeclaringType.IsGenericOrParentIsGeneric)
1154 inflated.state |= StateFlags.PendingMetaInflate;
1156 inflated.ID += 1000000;
1162 // Is this member accessible from invocation context
1164 public bool IsAccessible (IMemberContext ctx)
1166 var ma = Modifiers & Modifiers.AccessibilityMask;
1167 if (ma == Modifiers.PUBLIC)
1170 var parentType = /* this as TypeSpec ?? */ DeclaringType;
1171 var ctype = ctx.CurrentType;
1173 if (ma == Modifiers.PRIVATE) {
1174 if (ctype == null || parentType == null)
1177 // It's only accessible to the current class or children
1179 if (parentType.MemberDefinition == ctype.MemberDefinition)
1182 return TypeManager.IsNestedChildOf (ctype, parentType.MemberDefinition);
1185 if ((ma & Modifiers.INTERNAL) != 0) {
1187 var assembly = ctype == null ? ctx.Module.DeclaringAssembly : ctype.MemberDefinition.DeclaringAssembly;
1189 if (parentType == null) {
1190 b = ((ITypeDefinition) MemberDefinition).IsInternalAsPublic (assembly);
1192 b = DeclaringType.MemberDefinition.IsInternalAsPublic (assembly);
1195 if (b || ma == Modifiers.INTERNAL)
1200 // Checks whether `ctype' is a subclass or nested child of `parentType'.
1202 while (ctype != null) {
1203 if (TypeManager.IsFamilyAccessible (ctype, parentType))
1206 // Handle nested types.
1207 ctype = ctype.DeclaringType; // TODO: Untested ???
1214 // Returns member CLS compliance based on full member hierarchy
1216 public bool IsCLSCompliant ()
1218 if ((state & StateFlags.CLSCompliant_Undetected) != 0) {
1219 state &= ~StateFlags.CLSCompliant_Undetected;
1222 if (IsNotCLSCompliant (out compliant))
1226 if (DeclaringType != null) {
1227 compliant = DeclaringType.IsCLSCompliant ();
1229 compliant = ((ITypeDefinition) MemberDefinition).DeclaringAssembly.IsCLSCompliant;
1234 state |= StateFlags.CLSCompliant;
1237 return (state & StateFlags.CLSCompliant) != 0;
1240 public bool IsConditionallyExcluded (IMemberContext ctx)
1242 if ((Kind & (MemberKind.Class | MemberKind.Method)) == 0)
1245 var conditions = MemberDefinition.ConditionalConditions ();
1246 if (conditions == null)
1249 var m = ctx.CurrentMemberDefinition;
1250 CompilationSourceFile unit = null;
1251 while (m != null && unit == null) {
1252 unit = m as CompilationSourceFile;
1257 foreach (var condition in conditions) {
1258 if (unit.IsConditionalDefined (condition))
1266 public override string ToString ()
1268 return GetSignatureForError ();
1273 // Member details which are same between all member
1276 public interface IMemberDefinition
1278 bool? CLSAttributeValue { get; }
1279 string Name { get; }
1280 bool IsImported { get; }
1282 string[] ConditionalConditions ();
1283 ObsoleteAttribute GetAttributeObsolete ();
1284 void SetIsAssigned ();
1288 public interface IMethodDefinition : IMemberDefinition
1290 MethodBase Metadata { get; }
1293 public interface IParametersMember : IInterfaceMemberSpec
1295 AParametersCollection Parameters { get; }
1298 public interface IInterfaceMemberSpec
1300 TypeSpec MemberType { get; }