2 // class.cs: Class and Struct handlers
4 // Authors: Miguel de Icaza (miguel@gnu.org)
5 // Martin Baulig (martin@ximian.com)
6 // Marek Safar (marek.safar@seznam.cz)
8 // Licensed under the terms of the GNU GPL
10 // (C) 2001, 2002, 2003 Ximian, Inc (http://www.ximian.com)
11 // (C) 2004 Novell, Inc
14 // 2002-10-11 Miguel de Icaza <miguel@ximian.com>
16 // * class.cs: Following the comment from 2002-09-26 to AddMethod, I
17 // have fixed a remaining problem: not every AddXXXX was adding a
18 // fully qualified name.
20 // Now everyone registers a fully qualified name in the DeclSpace as
21 // being defined instead of the partial name.
23 // Downsides: we are slower than we need to be due to the excess
24 // copies and the names being registered this way.
26 // The reason for this is that we currently depend (on the corlib
27 // bootstrap for instance) that types are fully qualified, because
28 // we dump all the types in the namespace, and we should really have
29 // types inserted into the proper namespace, so we can only store the
30 // basenames in the defined_names array.
35 using System.Collections;
36 using System.Collections.Specialized;
37 using System.Reflection;
38 using System.Reflection.Emit;
39 using System.Runtime.CompilerServices;
40 using System.Runtime.InteropServices;
41 using System.Security;
42 using System.Security.Permissions;
45 #if BOOTSTRAP_WITH_OLDLIB
46 using XmlElement = System.Object;
51 using Mono.CompilerServices.SymbolWriter;
53 namespace Mono.CSharp {
63 /// This is the base class for structs and classes.
65 public abstract class TypeContainer : DeclSpace, IMemberContainer {
67 public class MemberCoreArrayList: ArrayList
70 /// Defines the MemberCore objects that are in this array
72 public virtual void DefineContainerMembers ()
74 foreach (MemberCore mc in this) {
77 } catch (Exception e) {
78 throw new InternalErrorException (mc.Location, mc.GetSignatureForError (), e);
83 public virtual void Emit ()
85 foreach (MemberCore mc in this)
90 public class MethodArrayList : MemberCoreArrayList
98 CachedMethods cached_method;
99 TypeContainer container;
101 public MethodArrayList (TypeContainer container)
103 this.container = container;
107 /// Method container contains Equals method
109 public bool HasEquals {
111 cached_method |= CachedMethods.Equals;
115 return (cached_method & CachedMethods.Equals) != 0;
120 /// Method container contains GetHashCode method
122 public bool HasGetHashCode {
124 cached_method |= CachedMethods.GetHashCode;
128 return (cached_method & CachedMethods.GetHashCode) != 0;
132 public override void DefineContainerMembers ()
134 base.DefineContainerMembers ();
136 if (HasEquals && !HasGetHashCode) {
137 Report.Warning (659, 3, container.Location, "`{0}' overrides Object.Equals(object) but does not override Object.GetHashCode()", container.GetSignatureForError ());
142 public sealed class IndexerArrayList : MemberCoreArrayList
145 /// The indexer name for this container
147 public string IndexerName = DefaultIndexerName;
149 bool seen_normal_indexers = false;
151 TypeContainer container;
153 public IndexerArrayList (TypeContainer container)
155 this.container = container;
159 /// Defines the indexers, and also verifies that the IndexerNameAttribute in the
160 /// class is consistent. Either it is `Item' or it is the name defined by all the
161 /// indexers with the `IndexerName' attribute.
163 /// Turns out that the IndexerNameAttribute is applied to each indexer,
164 /// but it is never emitted, instead a DefaultMember attribute is attached
167 public override void DefineContainerMembers()
169 base.DefineContainerMembers ();
171 string class_indexer_name = null;
174 // If there's both an explicit and an implicit interface implementation, the
175 // explicit one actually implements the interface while the other one is just
176 // a normal indexer. See bug #37714.
179 // Invariant maintained by AddIndexer(): All explicit interface indexers precede normal indexers
180 foreach (Indexer i in this) {
181 if (i.InterfaceType != null) {
182 if (seen_normal_indexers)
183 throw new Exception ("Internal Error: 'Indexers' array not sorted properly.");
187 seen_normal_indexers = true;
189 if (class_indexer_name == null) {
190 class_indexer_name = i.ShortName;
194 if (i.ShortName != class_indexer_name)
195 Report.Error (668, i.Location, "Two indexers have different names; the IndexerName attribute must be used with the same name on every indexer within a type");
198 if (class_indexer_name != null)
199 IndexerName = class_indexer_name;
202 public override void Emit ()
206 if (!seen_normal_indexers)
209 CustomAttributeBuilder cb = new CustomAttributeBuilder (TypeManager.default_member_ctor, new string [] { IndexerName });
210 container.TypeBuilder.SetCustomAttribute (cb);
214 public class OperatorArrayList: MemberCoreArrayList
216 TypeContainer container;
218 public OperatorArrayList (TypeContainer container)
220 this.container = container;
224 // Operator pair checking
229 public Type ret_type;
230 public Type type1, type2;
232 public Operator.OpType ot;
234 public OperatorEntry (int f, Operator o)
238 ret_type = o.MemberType;
239 Type [] pt = o.ParameterTypes;
246 public override int GetHashCode ()
248 return ret_type.GetHashCode ();
251 public override bool Equals (object o)
253 OperatorEntry other = (OperatorEntry) o;
255 if (other.ret_type != ret_type)
257 if (other.type1 != type1)
259 if (other.type2 != type2)
266 // Checks that some operators come in pairs:
272 // They are matched based on the return type and the argument types
274 void CheckPairedOperators ()
276 IDictionary pairs = new HybridDictionary ();
277 Operator true_op = null;
278 Operator false_op = null;
279 bool has_equality_or_inequality = false;
281 // Register all the operators we care about.
282 foreach (Operator op in this){
285 // Skip erroneous code.
286 if (op.MethodBuilder == null)
289 switch (op.OperatorType){
290 case Operator.OpType.Equality:
292 has_equality_or_inequality = true;
294 case Operator.OpType.Inequality:
296 has_equality_or_inequality = true;
299 case Operator.OpType.True:
302 case Operator.OpType.False:
306 case Operator.OpType.GreaterThan:
308 case Operator.OpType.LessThan:
311 case Operator.OpType.GreaterThanOrEqual:
313 case Operator.OpType.LessThanOrEqual:
319 OperatorEntry oe = new OperatorEntry (reg, op);
321 object o = pairs [oe];
325 oe = (OperatorEntry) o;
330 if (true_op != null){
331 if (false_op == null)
332 Report.Error (216, true_op.Location, "The operator `{0}' requires a matching operator `false' to also be defined",
333 true_op.GetSignatureForError ());
334 } else if (false_op != null)
335 Report.Error (216, false_op.Location, "The operator `{0}' requires a matching operator `true' to also be defined",
336 false_op.GetSignatureForError ());
339 // Look for the mistakes.
341 foreach (DictionaryEntry de in pairs){
342 OperatorEntry oe = (OperatorEntry) de.Key;
349 case Operator.OpType.Equality:
352 case Operator.OpType.Inequality:
355 case Operator.OpType.GreaterThan:
358 case Operator.OpType.LessThan:
361 case Operator.OpType.GreaterThanOrEqual:
364 case Operator.OpType.LessThanOrEqual:
368 Report.Error (216, oe.op.Location,
369 "The operator `{0}' requires a matching operator `{1}' to also be defined",
370 oe.op.GetSignatureForError (), s);
373 if (has_equality_or_inequality && (RootContext.WarningLevel > 2)) {
374 if (container.Methods == null || !container.Methods.HasEquals)
375 Report.Warning (660, 2, container.Location, "`{0}' defines operator == or operator != but does not override Object.Equals(object o)", container.GetSignatureForError ());
377 if (container.Methods == null || !container.Methods.HasGetHashCode)
378 Report.Warning (661, 2, container.Location, "`{0}' defines operator == or operator != but does not override Object.GetHashCode()", container.GetSignatureForError ());
382 public override void DefineContainerMembers ()
384 base.DefineContainerMembers ();
385 CheckPairedOperators ();
390 // Whether this is a struct, class or interface
391 public readonly Kind Kind;
393 // Holds a list of classes and structures
394 protected ArrayList types;
396 // Holds the list of properties
397 MemberCoreArrayList properties;
399 // Holds the list of enumerations
400 MemberCoreArrayList enums;
402 // Holds the list of delegates
403 MemberCoreArrayList delegates;
405 // Holds the list of constructors
406 protected MemberCoreArrayList instance_constructors;
408 // Holds the list of fields
409 MemberCoreArrayList fields;
411 // Holds a list of fields that have initializers
412 protected ArrayList initialized_fields;
414 // Holds a list of static fields that have initializers
415 protected ArrayList initialized_static_fields;
417 // Holds the list of constants
418 MemberCoreArrayList constants;
421 MemberCoreArrayList interfaces;
423 // Holds the methods.
424 MethodArrayList methods;
427 protected MemberCoreArrayList events;
429 // Holds the indexers
430 IndexerArrayList indexers;
432 // Holds the operators
433 MemberCoreArrayList operators;
435 // Holds the compiler generated classes
436 ArrayList compiler_generated;
439 // Pointers to the default constructor and the default static constructor
441 protected Constructor default_constructor;
442 protected Constructor default_static_constructor;
445 // Points to the first non-static field added to the container.
447 // This is an arbitrary choice. We are interested in looking at _some_ non-static field,
448 // and the first one's as good as any.
450 FieldBase first_nonstatic_field = null;
453 // This one is computed after we can distinguish interfaces
454 // from classes from the arraylist `type_bases'
457 TypeExpr[] iface_exprs;
460 ArrayList type_bases;
462 bool members_resolved;
463 bool members_resolved_ok;
464 bool members_defined;
465 bool members_defined_ok;
467 // The interfaces we implement.
468 protected Type[] ifaces;
470 // The base member cache and our member cache
471 MemberCache base_cache;
472 MemberCache member_cache;
474 public const string DefaultIndexerName = "Item";
477 GenericTypeParameterBuilder[] gen_params;
480 ArrayList partial_parts;
483 /// The pending methods that need to be implemented
484 // (interfaces or abstract methods)
486 PendingImplementation pending;
488 public TypeContainer (NamespaceEntry ns, DeclSpace parent, MemberName name,
489 Attributes attrs, Kind kind)
490 : base (ns, parent, name, attrs)
492 if (parent != null && parent.NamespaceEntry != ns)
493 throw new InternalErrorException ("A nested type should be in the same NamespaceEntry as its enclosing class");
496 this.PartialContainer = this;
499 public bool AddMember (MemberCore symbol)
501 return AddToContainer (symbol, symbol.MemberName.MethodName);
504 protected virtual bool AddMemberType (DeclSpace ds)
506 return AddToContainer (ds, ds.Basename);
509 public void AddConstant (Const constant)
511 if (!AddMember (constant))
514 if (constants == null)
515 constants = new MemberCoreArrayList ();
517 constants.Add (constant);
520 public void AddEnum (Mono.CSharp.Enum e)
522 if (!AddMemberType (e))
526 enums = new MemberCoreArrayList ();
531 public TypeContainer AddTypeContainer (TypeContainer tc, bool is_interface)
533 if (!AddMemberType (tc))
537 if (interfaces == null)
538 interfaces = new MemberCoreArrayList ();
542 types = new ArrayList (2);
548 public virtual TypeContainer AddPartial (TypeContainer nextPart, bool is_interface)
550 return AddPartial (nextPart, nextPart.Basename, is_interface);
553 protected TypeContainer AddPartial (TypeContainer nextPart, string name, bool is_interface)
555 nextPart.ModFlags |= Modifiers.PARTIAL;
556 TypeContainer tc = defined_names [name] as TypeContainer;
559 return AddTypeContainer (nextPart, is_interface);
561 if ((tc.ModFlags & Modifiers.PARTIAL) == 0) {
562 Report.SymbolRelatedToPreviousError (tc);
563 Error_MissingPartialModifier (nextPart);
567 if (tc.Kind != nextPart.Kind) {
568 Report.SymbolRelatedToPreviousError (tc);
569 Report.Error (261, nextPart.Location,
570 "Partial declarations of `{0}' must be all classes, all structs or all interfaces",
571 nextPart.GetSignatureForError ());
575 if ((tc.ModFlags & Modifiers.Accessibility) != (nextPart.ModFlags & Modifiers.Accessibility) &&
576 ((tc.ModFlags & Modifiers.DEFAULT_ACCESS_MODIFER) == 0 &&
577 (nextPart.ModFlags & Modifiers.DEFAULT_ACCESS_MODIFER) == 0)) {
578 Report.SymbolRelatedToPreviousError (tc);
579 Report.Error (262, nextPart.Location,
580 "Partial declarations of `{0}' have conflicting accessibility modifiers",
581 nextPart.GetSignatureForError ());
585 if (tc.MemberName.IsGeneric) {
586 TypeParameter[] tc_names = tc.TypeParameters;
587 TypeParameterName[] part_names = nextPart.MemberName.TypeArguments.GetDeclarations ();
589 for (int i = 0; i < tc_names.Length; ++i) {
590 if (tc_names[i].Name == part_names[i].Name)
593 Report.SymbolRelatedToPreviousError (part_names[i].Location, "");
594 Report.Error (264, tc.Location, "Partial declarations of `{0}' must have the same type parameter names in the same order",
595 tc.GetSignatureForError ());
600 if (tc.partial_parts == null)
601 tc.partial_parts = new ArrayList (1);
603 tc.ModFlags |= nextPart.ModFlags;
604 if (nextPart.attributes != null) {
605 if (tc.attributes == null)
606 tc.attributes = nextPart.attributes;
608 tc.attributes.AddAttributes (nextPart.attributes.Attrs);
611 nextPart.PartialContainer = tc;
612 tc.partial_parts.Add (nextPart);
616 public void AddDelegate (Delegate d)
618 if (!AddMemberType (d))
621 if (delegates == null)
622 delegates = new MemberCoreArrayList ();
627 public void AddMethod (Method method)
629 if (!AddMember (method))
633 methods = new MethodArrayList (this);
635 if (method.MemberName.Left != null)
636 methods.Insert (0, method);
638 methods.Add (method);
642 // Do not use this method: use AddMethod.
644 // This is only used by iterators.
646 public void AppendMethod (Method method)
648 if (!AddMember (method))
652 methods = new MethodArrayList (this);
654 methods.Add (method);
657 public void AddConstructor (Constructor c)
659 if (c.Name != MemberName.Name) {
660 Report.Error (1520, c.Location, "Class, struct, or interface method must have a return type");
663 bool is_static = (c.ModFlags & Modifiers.STATIC) != 0;
666 if (default_static_constructor != null) {
667 Report.SymbolRelatedToPreviousError (default_static_constructor);
668 Report.Error (111, c.Location, Error111, c.GetSignatureForError ());
672 default_static_constructor = c;
674 if (c.Parameters.Empty){
675 if (default_constructor != null) {
676 Report.SymbolRelatedToPreviousError (default_constructor);
677 Report.Error (111, c.Location, Error111, c.GetSignatureForError ());
680 default_constructor = c;
683 if (instance_constructors == null)
684 instance_constructors = new MemberCoreArrayList ();
686 instance_constructors.Add (c);
690 internal static string Error111 {
692 return "`{0}' is already defined. Rename this member or use different parameter types";
696 public void AddField (FieldBase field)
698 if (!AddMember (field))
702 fields = new MemberCoreArrayList ();
706 if ((field.ModFlags & Modifiers.STATIC) != 0)
709 if (first_nonstatic_field == null) {
710 first_nonstatic_field = field;
714 if (Kind == Kind.Struct &&
715 first_nonstatic_field.Parent != field.Parent &&
716 RootContext.WarningLevel >= 3) {
717 Report.SymbolRelatedToPreviousError (first_nonstatic_field.Parent);
718 Report.Warning (282, 3, field.Location,
719 "struct instance field `{0}' found in different declaration from instance field `{1}'",
720 field.GetSignatureForError (), first_nonstatic_field.GetSignatureForError ());
724 public void AddProperty (Property prop)
726 if (!AddMember (prop) ||
727 !AddMember (prop.Get) || !AddMember (prop.Set))
730 if (properties == null)
731 properties = new MemberCoreArrayList ();
733 if (prop.MemberName.Left != null)
734 properties.Insert (0, prop);
736 properties.Add (prop);
739 public void AddEvent (Event e)
744 if (e is EventProperty) {
745 if (!AddMember (e.Add))
748 if (!AddMember (e.Remove))
753 events = new MemberCoreArrayList ();
759 /// Indexer has special handling in constrast to other AddXXX because the name can be driven by IndexerNameAttribute
761 public void AddIndexer (Indexer i)
763 if (indexers == null)
764 indexers = new IndexerArrayList (this);
766 if (i.IsExplicitImpl)
767 indexers.Insert (0, i);
772 public void AddOperator (Operator op)
777 if (operators == null)
778 operators = new OperatorArrayList (this);
783 public void AddCompilerGeneratedClass (CompilerGeneratedClass c)
785 Report.Debug (64, "ADD COMPILER GENERATED CLASS", this, c);
787 if (compiler_generated == null)
788 compiler_generated = new ArrayList ();
790 compiler_generated.Add (c);
793 public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
795 if (a.Type == TypeManager.default_member_type) {
796 if (Indexers != null) {
797 Report.Error (646, a.Location, "Cannot specify the `DefaultMember' attribute on type containing an indexer");
802 base.ApplyAttributeBuilder (a, cb);
805 public override AttributeTargets AttributeTargets {
807 throw new NotSupportedException ();
811 public ArrayList Types {
817 public MethodArrayList Methods {
823 public ArrayList Constants {
829 public ArrayList Interfaces {
835 public ArrayList CompilerGenerated {
837 return compiler_generated;
841 protected Type BaseType {
843 return TypeBuilder.BaseType;
847 public ArrayList Bases {
857 public ArrayList Fields {
863 public ArrayList InstanceConstructors {
865 return instance_constructors;
869 public ArrayList Properties {
875 public ArrayList Events {
881 public ArrayList Enums {
887 public ArrayList Indexers {
893 public ArrayList Operators {
899 public ArrayList Delegates {
905 protected override TypeAttributes TypeAttr {
907 return Modifiers.TypeAttr (ModFlags, IsTopLevel) | base.TypeAttr;
911 public string IndexerName {
913 return indexers == null ? DefaultIndexerName : indexers.IndexerName;
917 public bool IsComImport {
919 if (OptAttributes == null)
922 return OptAttributes.Contains (TypeManager.comimport_attr_type);
926 public virtual void RegisterFieldForInitialization (MemberCore field, FieldInitializer expression)
928 if ((field.ModFlags & Modifiers.STATIC) != 0){
929 if (initialized_static_fields == null)
930 initialized_static_fields = new ArrayList (4);
932 initialized_static_fields.Add (expression);
934 if (initialized_fields == null)
935 initialized_fields = new ArrayList (4);
937 initialized_fields.Add (expression);
942 // Emits the instance field initializers
944 public bool EmitFieldInitializers (EmitContext ec)
949 fields = initialized_static_fields;
951 fields = initialized_fields;
957 foreach (FieldInitializer f in fields) {
958 f.EmitStatement (ec);
963 public override string DocComment {
975 public PendingImplementation PendingImplementations {
976 get { return pending; }
979 public override bool GetClsCompliantAttributeValue ()
981 if (PartialContainer != this)
982 return PartialContainer.GetClsCompliantAttributeValue ();
984 return base.GetClsCompliantAttributeValue ();
987 public void AddBasesForPart (DeclSpace part, ArrayList bases)
989 // FIXME: get rid of partial_parts and store lists of bases of each part here
990 // assumed, not verified: 'part' is in 'partial_parts'
991 ((TypeContainer) part).Bases = bases;
994 TypeExpr[] GetNormalBases (out TypeExpr base_class)
1000 int count = Bases.Count;
1001 int start = 0, i, j;
1003 if (Kind == Kind.Class){
1004 TypeExpr name = ((Expression) Bases [0]).ResolveAsBaseTerminal (this, false);
1010 if (!name.IsInterface) {
1011 // base_class could be a class, struct, enum, delegate.
1012 // This is validated in GetClassBases.
1018 TypeExpr [] ifaces = new TypeExpr [count-start];
1020 for (i = start, j = 0; i < count; i++, j++){
1021 TypeExpr resolved = ((Expression) Bases [i]).ResolveAsBaseTerminal (this, false);
1022 if (resolved == null) {
1026 ifaces [j] = resolved;
1029 return ifaces.Length == 0 ? null : ifaces;
1033 TypeExpr[] GetNormalPartialBases (ref TypeExpr base_class)
1035 ArrayList ifaces = new ArrayList (0);
1036 if (iface_exprs != null)
1037 ifaces.AddRange (iface_exprs);
1039 foreach (TypeContainer part in partial_parts) {
1040 TypeExpr new_base_class;
1041 TypeExpr[] new_ifaces = part.GetClassBases (out new_base_class);
1042 if (new_base_class != TypeManager.system_object_expr) {
1043 if (base_class == TypeManager.system_object_expr)
1044 base_class = new_base_class;
1046 if (new_base_class != null && !new_base_class.Equals (base_class)) {
1047 Report.SymbolRelatedToPreviousError (base_class.Location, "");
1048 Report.Error (263, part.Location,
1049 "Partial declarations of `{0}' must not specify different base classes",
1050 part.GetSignatureForError ());
1057 if (new_ifaces == null)
1060 foreach (TypeExpr iface in new_ifaces) {
1061 if (ifaces.Contains (iface))
1068 if (ifaces.Count == 0)
1071 return (TypeExpr[])ifaces.ToArray (typeof (TypeExpr));
1075 /// This function computes the Base class and also the
1076 /// list of interfaces that the class or struct @c implements.
1078 /// The return value is an array (might be null) of
1079 /// interfaces implemented (as Types).
1081 /// The @base_class argument is set to the base object or null
1082 /// if this is `System.Object'.
1084 public virtual TypeExpr [] GetClassBases (out TypeExpr base_class)
1086 TypeExpr[] ifaces = GetNormalBases (out base_class);
1091 int count = ifaces.Length;
1093 for (int i = 0; i < count; i++) {
1094 TypeExpr iface = (TypeExpr) ifaces [i];
1096 if (!iface.IsInterface) {
1097 if (Kind != Kind.Class) {
1098 // TODO: location of symbol related ....
1099 Error_TypeInListIsNotInterface (Location, iface.GetSignatureForError ());
1101 else if (base_class != null)
1102 Report.Error (1721, Location, "`{0}': Classes cannot have multiple base classes (`{1}' and `{2}')",
1103 GetSignatureForError (), base_class.GetSignatureForError (), iface.GetSignatureForError ());
1105 Report.Error (1722, Location, "`{0}': Base class `{1}' must be specified as first",
1106 GetSignatureForError (), iface.GetSignatureForError ());
1111 for (int x = 0; x < i; x++) {
1112 if (iface.Equals (ifaces [x])) {
1113 Report.Error (528, Location,
1114 "`{0}' is already listed in " +
1115 "interface list", iface.GetSignatureForError ());
1120 if ((Kind == Kind.Interface) &&
1121 !iface.AsAccessible (Parent, ModFlags)) {
1122 Report.Error (61, Location,
1123 "Inconsistent accessibility: base " +
1124 "interface `{0}' is less accessible " +
1125 "than interface `{1}'", iface.Name,
1133 bool CheckGenericInterfaces (Type[] ifaces)
1136 ArrayList already_checked = new ArrayList ();
1138 for (int i = 0; i < ifaces.Length; i++) {
1139 Type iface = ifaces [i];
1140 foreach (Type t in already_checked) {
1144 Type[] inferred = new Type [CountTypeParameters];
1145 if (!TypeManager.MayBecomeEqualGenericInstances (iface, t, inferred, null))
1148 Report.Error (695, Location,
1149 "`{0}' cannot implement both `{1}' and `{2}' " +
1150 "because they may unify for some type parameter substitutions",
1151 TypeManager.CSharpName (TypeBuilder), TypeManager.CSharpName (iface),
1152 TypeManager.CSharpName (t));
1156 already_checked.Add (iface);
1165 protected void Error_TypeInListIsNotInterface (Location loc, string type)
1167 Report.Error (527, loc, "Type `{0}' in interface list is not an interface", type);
1170 bool DefineTypeBuilder ()
1174 if (TypeManager.NamespaceClash (Name, Location)) {
1178 ModuleBuilder builder = CodeGen.Module.Builder;
1179 Type default_parent = null;
1180 if (Kind == Kind.Struct)
1181 default_parent = TypeManager.value_type;
1182 TypeBuilder = builder.DefineType (
1183 Name, TypeAttr, default_parent, null);
1185 TypeBuilder builder = Parent.TypeBuilder;
1187 TypeBuilder = builder.DefineNestedType (
1188 Basename, TypeAttr, null, null);
1190 } catch (ArgumentException) {
1191 Report.RuntimeMissingSupport (Location, "static classes");
1195 TypeManager.AddUserType (this);
1199 string[] param_names = new string [TypeParameters.Length];
1200 for (int i = 0; i < TypeParameters.Length; i++)
1201 param_names [i] = TypeParameters [i].Name;
1203 gen_params = TypeBuilder.DefineGenericParameters (param_names);
1205 int offset = CountTypeParameters - CurrentTypeParameters.Length;
1206 for (int i = offset; i < gen_params.Length; i++)
1207 CurrentTypeParameters [i - offset].Define (gen_params [i]);
1211 iface_exprs = GetClassBases (out base_type);
1212 if (partial_parts != null) {
1213 iface_exprs = GetNormalPartialBases (ref base_type);
1217 // GetClassBases calls ResolveBaseTypeExpr() on the various type expressions involved,
1218 // which in turn should have called DefineType()s on base types if necessary.
1220 // None of the code below should trigger DefineType()s on classes that we depend on.
1221 // Thus, we are eligible to be on the topological sort `type_container_resolve_order'.
1223 // Let's do it as soon as possible, since code below can call DefineType() on classes
1224 // that depend on us to be populated before they are.
1226 if (!(this is CompilerGeneratedClass))
1227 RootContext.RegisterOrder (this);
1229 if (IsGeneric && base_type != null && TypeManager.IsAttributeType (base_type.Type)) {
1230 Report.Error (698, base_type.Location,
1231 "A generic type cannot derive from `{0}' because it is an attribute class",
1236 if (!CheckRecursiveDefinition (this))
1239 if (base_type != null) {
1240 TypeBuilder.SetParent (base_type.Type);
1242 ObsoleteAttribute obsolete_attr = AttributeTester.GetObsoleteAttribute (base_type.Type);
1243 if (obsolete_attr != null && !IsInObsoleteScope)
1244 AttributeTester.Report_ObsoleteMessage (obsolete_attr, base_type.GetSignatureForError (), Location);
1247 // add interfaces that were not added at type creation
1248 if (iface_exprs != null) {
1249 ifaces = TypeManager.ExpandInterfaces (iface_exprs);
1253 foreach (Type itype in ifaces)
1254 TypeBuilder.AddInterfaceImplementation (itype);
1256 foreach (TypeExpr ie in iface_exprs) {
1257 ObsoleteAttribute oa = AttributeTester.GetObsoleteAttribute (ie.Type);
1258 if ((oa != null) && !IsInObsoleteScope)
1259 AttributeTester.Report_ObsoleteMessage (
1260 oa, ie.GetSignatureForError (), Location);
1263 if (!CheckGenericInterfaces (ifaces))
1266 TypeManager.RegisterBuilder (TypeBuilder, ifaces);
1273 // Defines the type in the appropriate ModuleBuilder or TypeBuilder.
1275 public override TypeBuilder DefineType ()
1277 if (TypeBuilder != null)
1283 if (!DefineTypeBuilder ()) {
1288 if (partial_parts != null) {
1289 foreach (TypeContainer part in partial_parts)
1290 part.TypeBuilder = TypeBuilder;
1293 if (!(this is CompilerGeneratedClass)) {
1294 if (!ResolveMembers ()) {
1300 if (!DefineNestedTypes ()) {
1308 public bool ResolveMembers ()
1310 if (members_resolved)
1311 return members_resolved_ok;
1313 members_resolved_ok = DoResolveMembers ();
1314 members_resolved = true;
1316 return members_resolved_ok;
1319 protected virtual bool DoResolveMembers ()
1321 if (methods != null) {
1322 foreach (Method method in methods) {
1323 if (!method.ResolveMembers ())
1328 if (instance_constructors != null) {
1329 foreach (Constructor c in instance_constructors) {
1330 if (!c.ResolveMembers ())
1335 if (default_static_constructor != null) {
1336 if (!default_static_constructor.ResolveMembers ())
1340 if (operators != null) {
1341 foreach (Operator o in operators) {
1342 if (!o.ResolveMembers ())
1347 if (properties != null) {
1348 foreach (PropertyBase p in properties) {
1349 if (!p.Get.IsDummy && !p.Get.ResolveMembers ())
1351 if (!p.Set.IsDummy && !p.Set.ResolveMembers ())
1356 if (indexers != null) {
1357 foreach (PropertyBase p in indexers) {
1358 if (!p.Get.IsDummy && !p.Get.ResolveMembers ())
1360 if (!p.Set.IsDummy && !p.Set.ResolveMembers ())
1368 Constraints [] constraints;
1369 public override void SetParameterInfo (ArrayList constraints_list)
1371 if (PartialContainer == this) {
1372 base.SetParameterInfo (constraints_list);
1376 if (constraints_list == null)
1379 constraints = new Constraints [PartialContainer.CountCurrentTypeParameters];
1381 TypeParameter[] current_params = PartialContainer.CurrentTypeParameters;
1382 for (int i = 0; i < constraints.Length; i++) {
1383 foreach (Constraints constraint in constraints_list) {
1384 if (constraint.TypeParameter == current_params [i].Name) {
1385 constraints [i] = constraint;
1392 bool UpdateTypeParameterConstraints ()
1394 if (constraints == null)
1397 TypeParameter[] current_params = PartialContainer.CurrentTypeParameters;
1398 for (int i = 0; i < current_params.Length; i++) {
1399 if (!current_params [i].UpdateConstraints (this, constraints [i])) {
1400 Report.SymbolRelatedToPreviousError (Location, "");
1401 Report.Error (265, PartialContainer.Location,
1402 "Partial declarations of `{0}' have inconsistent constraints for type parameter `{1}'",
1403 PartialContainer.GetSignatureForError (), current_params [i].Name);
1411 public bool ResolveType ()
1413 if (!DoResolveType ())
1416 if (compiler_generated != null) {
1417 foreach (CompilerGeneratedClass c in compiler_generated)
1418 if (!c.ResolveType ())
1425 protected virtual bool DoResolveType ()
1427 if ((base_type != null) &&
1428 (base_type.ResolveAsTypeTerminal (this, false) == null)) {
1436 if (PartialContainer != this)
1437 throw new InternalErrorException ();
1439 TypeExpr current_type = null;
1441 foreach (TypeParameter type_param in CurrentTypeParameters) {
1442 if (!type_param.Resolve (this)) {
1448 if (partial_parts != null) {
1449 foreach (TypeContainer part in partial_parts) {
1450 if (!part.UpdateTypeParameterConstraints ()) {
1457 foreach (TypeParameter type_param in TypeParameters) {
1458 if (!type_param.DefineType (this)) {
1464 current_type = new ConstructedType (TypeBuilder, TypeParameters, Location);
1466 foreach (TypeParameter type_param in TypeParameters)
1467 if (!type_param.CheckDependencies ()) {
1472 if (current_type != null) {
1473 current_type = current_type.ResolveAsTypeTerminal (this, false);
1474 if (current_type == null) {
1479 CurrentType = current_type.Type;
1485 protected virtual bool DefineNestedTypes ()
1487 if (Interfaces != null) {
1488 foreach (TypeContainer iface in Interfaces)
1489 if (iface.DefineType () == null)
1493 if (Types != null) {
1494 foreach (TypeContainer tc in Types)
1495 if (tc.DefineType () == null)
1499 if (Delegates != null) {
1500 foreach (Delegate d in Delegates)
1501 if (d.DefineType () == null)
1505 if (Enums != null) {
1506 foreach (Enum en in Enums)
1507 if (en.DefineType () == null)
1511 if (compiler_generated != null) {
1512 foreach (CompilerGeneratedClass c in compiler_generated) {
1513 if (c.DefineType () == null)
1521 TypeContainer InTransit;
1523 protected bool CheckRecursiveDefinition (TypeContainer tc)
1525 if (InTransit != null) {
1526 Report.SymbolRelatedToPreviousError (this);
1527 if (this is Interface)
1529 529, tc.Location, "Inherited interface `{0}' causes a " +
1530 "cycle in the interface hierarchy of `{1}'",
1531 GetSignatureForError (), tc.GetSignatureForError ());
1534 146, tc.Location, "Circular base class dependency " +
1535 "involving `{0}' and `{1}'",
1536 tc.GetSignatureForError (), GetSignatureForError ());
1542 if (base_type != null) {
1543 Type t = TypeManager.DropGenericTypeArguments (base_type.Type);
1544 TypeContainer ptc = TypeManager.LookupTypeContainer (t);
1545 if ((ptc != null) && !ptc.CheckRecursiveDefinition (this))
1549 if (iface_exprs != null) {
1550 foreach (TypeExpr iface in iface_exprs) {
1551 Type itype = TypeManager.DropGenericTypeArguments (iface.Type);
1552 TypeContainer ptc = TypeManager.LookupTypeContainer (itype);
1553 if ((ptc != null) && !ptc.CheckRecursiveDefinition (this))
1558 if (!IsTopLevel && !Parent.PartialContainer.CheckRecursiveDefinition (this))
1565 public static void Error_KeywordNotAllowed (Location loc)
1567 Report.Error (1530, loc, "Keyword `new' is not allowed on namespace elements");
1571 /// Populates our TypeBuilder with fields and methods
1573 public override bool DefineMembers ()
1575 if (members_defined)
1576 return members_defined_ok;
1578 if (!base.DefineMembers ())
1581 members_defined_ok = DoDefineMembers ();
1582 members_defined = true;
1584 return members_defined_ok;
1587 protected virtual bool DoDefineMembers ()
1589 if (iface_exprs != null) {
1590 foreach (TypeExpr iface in iface_exprs) {
1591 ConstructedType ct = iface as ConstructedType;
1592 if ((ct != null) && !ct.CheckConstraints (this))
1597 if (base_type != null) {
1598 ConstructedType ct = base_type as ConstructedType;
1599 if ((ct != null) && !ct.CheckConstraints (this))
1604 MemberInfo conflict_symbol = Parent.PartialContainer.FindBaseMemberWithSameName (Basename, false);
1605 if (conflict_symbol == null) {
1606 if ((RootContext.WarningLevel >= 4) && ((ModFlags & Modifiers.NEW) != 0))
1607 Report.Warning (109, 4, Location, "The member `{0}' does not hide an inherited member. The new keyword is not required", GetSignatureForError ());
1609 if ((ModFlags & Modifiers.NEW) == 0) {
1610 Report.SymbolRelatedToPreviousError (conflict_symbol);
1611 Report.Warning (108, 2, Location, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
1612 GetSignatureForError (), TypeManager.GetFullNameSignature (conflict_symbol));
1617 DefineContainerMembers (constants);
1618 DefineContainerMembers (fields);
1620 if (Kind == Kind.Struct || Kind == Kind.Class) {
1621 pending = PendingImplementation.GetPendingImplementations (this);
1625 // Constructors are not in the defined_names array
1627 DefineContainerMembers (instance_constructors);
1629 DefineContainerMembers (properties);
1630 DefineContainerMembers (events);
1631 DefineContainerMembers (indexers);
1632 DefineContainerMembers (methods);
1633 DefineContainerMembers (operators);
1634 DefineContainerMembers (enums);
1635 DefineContainerMembers (delegates);
1637 if (CurrentType != null) {
1638 GenericType = CurrentType;
1643 member_cache = new MemberCache (this);
1644 if (partial_parts != null) {
1645 foreach (TypeContainer part in partial_parts)
1646 part.member_cache = member_cache;
1653 protected virtual void DefineContainerMembers (MemberCoreArrayList mcal)
1656 mcal.DefineContainerMembers ();
1659 public override bool Define ()
1661 if (compiler_generated != null) {
1662 foreach (CompilerGeneratedClass c in compiler_generated) {
1671 public MemberInfo FindBaseMemberWithSameName (string name, bool ignore_methods)
1673 return BaseCache == null ? null : BaseCache.FindMemberWithSameName (name, ignore_methods, null);
1677 /// This function is based by a delegate to the FindMembers routine
1679 static bool AlwaysAccept (MemberInfo m, object filterCriteria)
1685 /// This filter is used by FindMembers, and we just keep
1686 /// a global for the filter to `AlwaysAccept'
1688 static MemberFilter accepting_filter;
1691 static TypeContainer ()
1693 accepting_filter = new MemberFilter (AlwaysAccept);
1696 public MethodInfo[] GetMethods ()
1698 ArrayList members = new ArrayList ();
1702 if (methods != null) {
1703 int len = methods.Count;
1704 for (int i = 0; i < len; i++) {
1705 Method m = (Method) methods [i];
1707 members.Add (m.MethodBuilder);
1711 if (operators != null) {
1712 int len = operators.Count;
1713 for (int i = 0; i < len; i++) {
1714 Operator o = (Operator) operators [i];
1716 members.Add (o.MethodBuilder);
1720 if (properties != null) {
1721 int len = properties.Count;
1722 for (int i = 0; i < len; i++) {
1723 Property p = (Property) properties [i];
1725 if (p.GetBuilder != null)
1726 members.Add (p.GetBuilder);
1727 if (p.SetBuilder != null)
1728 members.Add (p.SetBuilder);
1732 if (indexers != null) {
1733 int len = indexers.Count;
1734 for (int i = 0; i < len; i++) {
1735 Indexer ix = (Indexer) indexers [i];
1737 if (ix.GetBuilder != null)
1738 members.Add (ix.GetBuilder);
1739 if (ix.SetBuilder != null)
1740 members.Add (ix.SetBuilder);
1744 if (events != null) {
1745 int len = events.Count;
1746 for (int i = 0; i < len; i++) {
1747 Event e = (Event) events [i];
1749 if (e.AddBuilder != null)
1750 members.Add (e.AddBuilder);
1751 if (e.RemoveBuilder != null)
1752 members.Add (e.RemoveBuilder);
1756 MethodInfo[] retMethods = new MethodInfo [members.Count];
1757 members.CopyTo (retMethods, 0);
1761 // Indicated whether container has StructLayout attribute set Explicit
1762 public bool HasExplicitLayout {
1763 get { return (caching_flags & Flags.HasExplicitLayout) != 0; }
1764 set { caching_flags |= Flags.HasExplicitLayout; }
1768 // Return the nested type with name @name. Ensures that the nested type
1769 // is defined if necessary. Do _not_ use this when you have a MemberCache handy.
1771 public Type FindNestedType (string name)
1773 if (PartialContainer != this)
1774 throw new InternalErrorException ("should not happen");
1776 ArrayList [] lists = { types, enums, delegates, interfaces };
1778 for (int j = 0; j < lists.Length; ++j) {
1779 ArrayList list = lists [j];
1783 int len = list.Count;
1784 for (int i = 0; i < len; ++i) {
1785 DeclSpace ds = (DeclSpace) list [i];
1786 if (ds.Basename == name) {
1787 return ds.DefineType ();
1795 private void FindMembers_NestedTypes (int modflags,
1796 BindingFlags bf, MemberFilter filter, object criteria,
1797 ref ArrayList members)
1799 ArrayList [] lists = { types, enums, delegates, interfaces };
1801 for (int j = 0; j < lists.Length; ++j) {
1802 ArrayList list = lists [j];
1806 int len = list.Count;
1807 for (int i = 0; i < len; i++) {
1808 DeclSpace ds = (DeclSpace) list [i];
1810 if ((ds.ModFlags & modflags) == 0)
1813 TypeBuilder tb = ds.TypeBuilder;
1815 if (!(criteria is string) || ds.Basename.Equals (criteria))
1816 tb = ds.DefineType ();
1819 if (tb != null && (filter (tb, criteria) == true)) {
1820 if (members == null)
1821 members = new ArrayList ();
1830 /// This method returns the members of this type just like Type.FindMembers would
1831 /// Only, we need to use this for types which are _being_ defined because MS'
1832 /// implementation can't take care of that.
1835 // FIXME: return an empty static array instead of null, that cleans up
1836 // some code and is consistent with some coding conventions I just found
1840 // Notice that in various cases we check if our field is non-null,
1841 // something that would normally mean that there was a bug elsewhere.
1843 // The problem happens while we are defining p-invoke methods, as those
1844 // will trigger a FindMembers, but this happens before things are defined
1846 // Since the whole process is a no-op, it is fine to check for null here.
1848 public override MemberList FindMembers (MemberTypes mt, BindingFlags bf,
1849 MemberFilter filter, object criteria)
1851 ArrayList members = null;
1854 if ((bf & BindingFlags.Public) != 0)
1855 modflags |= Modifiers.PUBLIC | Modifiers.PROTECTED |
1857 if ((bf & BindingFlags.NonPublic) != 0)
1858 modflags |= Modifiers.PRIVATE;
1860 int static_mask = 0, static_flags = 0;
1861 switch (bf & (BindingFlags.Static | BindingFlags.Instance)) {
1862 case BindingFlags.Static:
1863 static_mask = static_flags = Modifiers.STATIC;
1866 case BindingFlags.Instance:
1867 static_mask = Modifiers.STATIC;
1872 static_mask = static_flags = 0;
1876 Timer.StartTimer (TimerType.TcFindMembers);
1879 filter = accepting_filter;
1881 if ((mt & MemberTypes.Field) != 0) {
1882 if (fields != null) {
1883 int len = fields.Count;
1884 for (int i = 0; i < len; i++) {
1885 FieldBase f = (FieldBase) fields [i];
1887 if ((f.ModFlags & modflags) == 0)
1889 if ((f.ModFlags & static_mask) != static_flags)
1892 FieldBuilder fb = f.FieldBuilder;
1893 if (fb != null && filter (fb, criteria) == true) {
1894 if (members == null)
1895 members = new ArrayList ();
1902 if (constants != null) {
1903 int len = constants.Count;
1904 for (int i = 0; i < len; i++) {
1905 Const con = (Const) constants [i];
1907 if ((con.ModFlags & modflags) == 0)
1909 if ((con.ModFlags & static_mask) != static_flags)
1912 FieldBuilder fb = con.FieldBuilder;
1915 fb = con.FieldBuilder;
1917 if (fb != null && filter (fb, criteria) == true) {
1918 if (members == null)
1919 members = new ArrayList ();
1927 if ((mt & MemberTypes.Method) != 0) {
1928 if (methods != null) {
1929 int len = methods.Count;
1930 for (int i = 0; i < len; i++) {
1931 Method m = (Method) methods [i];
1933 if ((m.ModFlags & modflags) == 0)
1935 if ((m.ModFlags & static_mask) != static_flags)
1938 MethodBuilder mb = m.MethodBuilder;
1940 if (mb != null && filter (mb, criteria) == true) {
1941 if (members == null)
1942 members = new ArrayList ();
1949 if (operators != null) {
1950 int len = operators.Count;
1951 for (int i = 0; i < len; i++) {
1952 Operator o = (Operator) operators [i];
1954 if ((o.ModFlags & modflags) == 0)
1956 if ((o.ModFlags & static_mask) != static_flags)
1959 MethodBuilder ob = o.MethodBuilder;
1960 if (ob != null && filter (ob, criteria) == true) {
1961 if (members == null)
1962 members = new ArrayList ();
1969 if (events != null) {
1970 foreach (Event e in events) {
1971 if ((e.ModFlags & modflags) == 0)
1973 if ((e.ModFlags & static_mask) != static_flags)
1976 MethodBuilder b = e.AddBuilder;
1977 if (b != null && filter (b, criteria)) {
1978 if (members == null)
1979 members = new ArrayList (4);
1984 b = e.RemoveBuilder;
1985 if (b != null && filter (b, criteria)) {
1986 if (members == null)
1987 members = new ArrayList (4);
1994 if (properties != null) {
1995 int len = properties.Count;
1996 for (int i = 0; i < len; i++) {
1997 Property p = (Property) properties [i];
1999 if ((p.ModFlags & modflags) == 0)
2001 if ((p.ModFlags & static_mask) != static_flags)
2007 if (b != null && filter (b, criteria) == true) {
2008 if (members == null)
2009 members = new ArrayList ();
2015 if (b != null && filter (b, criteria) == true) {
2016 if (members == null)
2017 members = new ArrayList ();
2024 if (indexers != null) {
2025 int len = indexers.Count;
2026 for (int i = 0; i < len; i++) {
2027 Indexer ix = (Indexer) indexers [i];
2029 if ((ix.ModFlags & modflags) == 0)
2031 if ((ix.ModFlags & static_mask) != static_flags)
2037 if (b != null && filter (b, criteria) == true) {
2038 if (members == null)
2039 members = new ArrayList ();
2045 if (b != null && filter (b, criteria) == true) {
2046 if (members == null)
2047 members = new ArrayList ();
2055 if ((mt & MemberTypes.Event) != 0) {
2056 if (events != null) {
2057 int len = events.Count;
2058 for (int i = 0; i < len; i++) {
2059 Event e = (Event) events [i];
2061 if ((e.ModFlags & modflags) == 0)
2063 if ((e.ModFlags & static_mask) != static_flags)
2066 MemberInfo eb = e.EventBuilder;
2067 if (eb != null && filter (eb, criteria) == true) {
2068 if (members == null)
2069 members = new ArrayList ();
2071 members.Add (e.EventBuilder);
2077 if ((mt & MemberTypes.Property) != 0){
2078 if (properties != null) {
2079 int len = properties.Count;
2080 for (int i = 0; i < len; i++) {
2081 Property p = (Property) properties [i];
2083 if ((p.ModFlags & modflags) == 0)
2085 if ((p.ModFlags & static_mask) != static_flags)
2088 MemberInfo pb = p.PropertyBuilder;
2089 if (pb != null && filter (pb, criteria) == true) {
2090 if (members == null)
2091 members = new ArrayList ();
2093 members.Add (p.PropertyBuilder);
2098 if (indexers != null) {
2099 int len = indexers.Count;
2100 for (int i = 0; i < len; i++) {
2101 Indexer ix = (Indexer) indexers [i];
2103 if ((ix.ModFlags & modflags) == 0)
2105 if ((ix.ModFlags & static_mask) != static_flags)
2108 MemberInfo ib = ix.PropertyBuilder;
2109 if (ib != null && filter (ib, criteria) == true) {
2110 if (members == null)
2111 members = new ArrayList ();
2113 members.Add (ix.PropertyBuilder);
2119 if ((mt & MemberTypes.NestedType) != 0)
2120 FindMembers_NestedTypes (modflags, bf, filter, criteria, ref members);
2122 if ((mt & MemberTypes.Constructor) != 0){
2123 if (((bf & BindingFlags.Instance) != 0) && (instance_constructors != null)){
2124 int len = instance_constructors.Count;
2125 for (int i = 0; i < len; i++) {
2126 Constructor c = (Constructor) instance_constructors [i];
2128 ConstructorBuilder cb = c.ConstructorBuilder;
2129 if (cb != null && filter (cb, criteria) == true) {
2130 if (members == null)
2131 members = new ArrayList ();
2138 if (((bf & BindingFlags.Static) != 0) && (default_static_constructor != null)){
2139 ConstructorBuilder cb =
2140 default_static_constructor.ConstructorBuilder;
2142 if (cb != null && filter (cb, criteria) == true) {
2143 if (members == null)
2144 members = new ArrayList ();
2152 // Lookup members in base if requested.
2154 if ((bf & BindingFlags.DeclaredOnly) == 0) {
2155 if (TypeBuilder.BaseType != null) {
2156 MemberList list = FindMembers (TypeBuilder.BaseType, mt, bf, filter, criteria);
2157 if (list.Count > 0) {
2158 if (members == null)
2159 members = new ArrayList ();
2161 members.AddRange (list);
2166 Timer.StopTimer (TimerType.TcFindMembers);
2168 if (members == null)
2169 return MemberList.Empty;
2171 return new MemberList (members);
2174 public override MemberCache MemberCache {
2176 return member_cache;
2180 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
2181 MemberFilter filter, object criteria)
2183 DeclSpace ds = TypeManager.LookupDeclSpace (t);
2186 return ds.FindMembers (mt, bf, filter, criteria);
2188 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
2192 /// Emits the values for the constants
2194 public void EmitConstants ()
2196 if (constants != null)
2197 foreach (Const con in constants)
2202 static void CheckMemberUsage (MemberCoreArrayList al, string member_type)
2207 foreach (MemberCore mc in al) {
2208 if ((mc.ModFlags & Modifiers.Accessibility) != Modifiers.PRIVATE)
2212 Report.Warning (169, 3, mc.Location, "The private {0} `{1}' is never used", member_type, mc.GetSignatureForError ());
2217 public virtual void VerifyMembers ()
2220 // Check for internal or private fields that were never assigned
2222 if (RootContext.WarningLevel >= 3) {
2223 CheckMemberUsage (properties, "property");
2224 CheckMemberUsage (methods, "method");
2225 CheckMemberUsage (constants, "constant");
2227 if (fields != null){
2228 foreach (FieldBase f in fields) {
2229 if ((f.ModFlags & Modifiers.Accessibility) != Modifiers.PRIVATE)
2233 if ((f.caching_flags & Flags.IsAssigned) == 0)
2234 Report.Warning (169, 3, f.Location, "The private field `{0}' is never used", f.GetSignatureForError ());
2237 const int error_code = 414;
2239 const int error_code = 169;
2241 Report.Warning (error_code, 3, f.Location, "The private field `{0}' is assigned but its value is never used",
2242 f.GetSignatureForError ());
2248 // Only report 649 on level 4
2250 if (RootContext.WarningLevel < 4)
2253 if ((f.caching_flags & Flags.IsAssigned) != 0)
2256 Constant c = New.Constantify (f.Type.Type);
2257 Report.Warning (649, 4, f.Location, "Field `{0}' is never assigned to, and will always have its default value `{1}'",
2258 f.GetSignatureForError (), c == null ? "null" : c.AsString ());
2264 // TODO: move to ClassOrStruct
2265 void EmitConstructors ()
2267 if (instance_constructors == null)
2270 if (TypeBuilder.IsSubclassOf (TypeManager.attribute_type) && RootContext.VerifyClsCompliance && IsClsComplianceRequired ()) {
2271 bool has_compliant_args = false;
2273 foreach (Constructor c in instance_constructors) {
2276 if (has_compliant_args)
2279 has_compliant_args = c.HasCompliantArgs;
2281 if (!has_compliant_args)
2282 Report.Error (3015, Location, "`{0}' has no accessible constructors which use only CLS-compliant types", GetSignatureForError ());
2284 foreach (Constructor c in instance_constructors)
2290 /// Emits the code, this step is performed after all
2291 /// the types, enumerations, constructors
2293 public virtual void EmitType ()
2295 if (OptAttributes != null)
2296 OptAttributes.Emit ();
2300 int offset = CountTypeParameters - CurrentTypeParameters.Length;
2301 for (int i = offset; i < gen_params.Length; i++)
2302 CurrentTypeParameters [i - offset].EmitAttributes ();
2307 // Structs with no fields need to have at least one byte.
2308 // The right thing would be to set the PackingSize in a DefineType
2309 // but there are no functions that allow interfaces *and* the size to
2313 if (Kind == Kind.Struct && first_nonstatic_field == null){
2314 FieldBuilder fb = TypeBuilder.DefineField ("$PRIVATE$", TypeManager.byte_type,
2315 FieldAttributes.Private);
2317 if (HasExplicitLayout){
2318 object [] ctor_args = new object [1];
2321 CustomAttributeBuilder cba = new CustomAttributeBuilder (
2322 TypeManager.field_offset_attribute_ctor, ctor_args);
2323 fb.SetCustomAttribute (cba);
2329 EmitConstructors ();
2331 // Can not continue if constants are broken
2333 if (Report.Errors > 0)
2336 if (default_static_constructor != null)
2337 default_static_constructor.Emit ();
2339 if (methods != null){
2340 foreach (Method m in methods)
2344 if (operators != null)
2345 foreach (Operator o in operators)
2348 if (properties != null)
2349 foreach (Property p in properties)
2352 if (indexers != null){
2357 foreach (FieldBase f in fields)
2360 if (events != null){
2361 foreach (Event e in Events)
2365 if (delegates != null) {
2366 foreach (Delegate d in Delegates) {
2371 if (enums != null) {
2372 foreach (Enum e in enums) {
2377 if (pending != null)
2378 if (pending.VerifyPendingMethods ())
2381 if (Report.Errors > 0)
2384 if (compiler_generated != null) {
2385 foreach (CompilerGeneratedClass c in compiler_generated) {
2386 if (!c.DefineMembers ())
2387 throw new InternalErrorException ();
2389 foreach (CompilerGeneratedClass c in compiler_generated)
2394 public override void CloseType ()
2396 if ((caching_flags & Flags.CloseTypeCreated) != 0)
2400 caching_flags |= Flags.CloseTypeCreated;
2401 TypeBuilder.CreateType ();
2402 } catch (TypeLoadException){
2404 // This is fine, the code still created the type
2406 // Report.Warning (-20, "Exception while creating class: " + TypeBuilder.Name);
2407 // Console.WriteLine (e.Message);
2409 Console.WriteLine ("In type: " + Name);
2414 foreach (Enum en in Enums)
2418 foreach (TypeContainer tc in Types)
2419 if (tc.Kind == Kind.Struct)
2422 foreach (TypeContainer tc in Types)
2423 if (tc.Kind != Kind.Struct)
2427 if (Delegates != null)
2428 foreach (Delegate d in Delegates)
2431 if (CompilerGenerated != null)
2432 foreach (CompilerGeneratedClass c in CompilerGenerated)
2440 initialized_fields = null;
2441 initialized_static_fields = null;
2448 compiler_generated = null;
2449 default_constructor = null;
2450 default_static_constructor = null;
2452 OptAttributes = null;
2455 member_cache = null;
2459 // Performs the validation on a Method's modifiers (properties have
2460 // the same properties).
2462 public bool MethodModifiersValid (MemberCore mc)
2464 const int vao = (Modifiers.VIRTUAL | Modifiers.ABSTRACT | Modifiers.OVERRIDE);
2465 const int va = (Modifiers.VIRTUAL | Modifiers.ABSTRACT);
2466 const int nv = (Modifiers.NEW | Modifiers.VIRTUAL);
2468 int flags = mc.ModFlags;
2471 // At most one of static, virtual or override
2473 if ((flags & Modifiers.STATIC) != 0){
2474 if ((flags & vao) != 0){
2475 Report.Error (112, mc.Location, "A static member `{0}' cannot be marked as override, virtual or abstract",
2476 mc.GetSignatureForError ());
2481 if (Kind == Kind.Struct){
2482 if ((flags & va) != 0){
2483 Modifiers.Error_InvalidModifier (mc.Location, "virtual or abstract");
2488 if ((flags & Modifiers.OVERRIDE) != 0 && (flags & nv) != 0){
2489 Report.Error (113, mc.Location, "A member `{0}' marked as override cannot be marked as new or virtual",
2490 mc.GetSignatureForError ());
2495 // If the declaration includes the abstract modifier, then the
2496 // declaration does not include static, virtual or extern
2498 if ((flags & Modifiers.ABSTRACT) != 0){
2499 if ((flags & Modifiers.EXTERN) != 0){
2501 180, mc.Location, "`{0}' cannot be both extern and abstract", mc.GetSignatureForError ());
2505 if ((flags & Modifiers.SEALED) != 0) {
2506 Report.Error (502, mc.Location, "`{0}' cannot be both abstract and sealed", mc.GetSignatureForError ());
2510 if ((flags & Modifiers.VIRTUAL) != 0){
2511 Report.Error (503, mc.Location, "The abstract method `{0}' cannot be marked virtual", mc.GetSignatureForError ());
2515 if ((ModFlags & Modifiers.ABSTRACT) == 0){
2516 Report.Error (513, mc.Location, "`{0}' is abstract but it is contained in nonabstract class", mc.GetSignatureForError ());
2521 if ((flags & Modifiers.PRIVATE) != 0){
2522 if ((flags & vao) != 0){
2523 Report.Error (621, mc.Location, "`{0}': virtual or abstract members cannot be private", mc.GetSignatureForError ());
2528 if ((flags & Modifiers.SEALED) != 0){
2529 if ((flags & Modifiers.OVERRIDE) == 0){
2530 Report.Error (238, mc.Location, "`{0}' cannot be sealed because it is not an override", mc.GetSignatureForError ());
2538 public Constructor DefaultStaticConstructor {
2539 get { return default_static_constructor; }
2542 protected override bool VerifyClsCompliance ()
2544 if (!base.VerifyClsCompliance ())
2549 Type base_type = TypeBuilder.BaseType;
2550 if (base_type != null && !AttributeTester.IsClsCompliant (base_type)) {
2551 Report.Error (3009, Location, "`{0}': base type `{1}' is not CLS-compliant", GetSignatureForError (), TypeManager.CSharpName (base_type));
2558 /// Checks whether container name is CLS Compliant
2560 void VerifyClsName ()
2562 Hashtable base_members = base_cache == null ?
2564 base_cache.GetPublicMembers ();
2565 Hashtable this_members = new Hashtable ();
2567 foreach (DictionaryEntry entry in defined_names) {
2568 MemberCore mc = (MemberCore)entry.Value;
2569 if (!mc.IsClsComplianceRequired ())
2572 string name = (string) entry.Key;
2573 string basename = name.Substring (name.LastIndexOf ('.') + 1);
2575 string lcase = basename.ToLower (System.Globalization.CultureInfo.InvariantCulture);
2576 object found = base_members [lcase];
2577 if (found == null) {
2578 found = this_members [lcase];
2579 if (found == null) {
2580 this_members.Add (lcase, mc);
2585 if ((mc.ModFlags & Modifiers.OVERRIDE) != 0)
2588 if (found is MemberInfo) {
2589 if (basename == ((MemberInfo) found).Name)
2591 Report.SymbolRelatedToPreviousError ((MemberInfo) found);
2593 Report.SymbolRelatedToPreviousError ((MemberCore) found);
2596 Report.Warning (3005, 1, mc.Location, "Identifier `{0}' differing only in case is not CLS-compliant", mc.GetSignatureForError ());
2598 Report.Error (3005, mc.Location, "Identifier `{0}' differing only in case is not CLS-compliant", mc.GetSignatureForError ());
2605 /// Performs checks for an explicit interface implementation. First it
2606 /// checks whether the `interface_type' is a base inteface implementation.
2607 /// Then it checks whether `name' exists in the interface type.
2609 public virtual bool VerifyImplements (InterfaceMemberBase mb)
2611 if (ifaces != null) {
2612 foreach (Type t in ifaces){
2613 if (t == mb.InterfaceType)
2618 Report.SymbolRelatedToPreviousError (mb.InterfaceType);
2619 Report.Error (540, mb.Location, "`{0}': containing type does not implement interface `{1}'",
2620 mb.GetSignatureForError (), TypeManager.CSharpName (mb.InterfaceType));
2624 public void Mark_HasEquals ()
2626 Methods.HasEquals = true;
2629 public void Mark_HasGetHashCode ()
2631 Methods.HasGetHashCode = true;
2638 string IMemberContainer.Name {
2644 Type IMemberContainer.Type {
2650 MemberCache IMemberContainer.MemberCache {
2652 return member_cache;
2656 bool IMemberContainer.IsInterface {
2658 return Kind == Kind.Interface;
2662 MemberList IMemberContainer.GetMembers (MemberTypes mt, BindingFlags bf)
2664 BindingFlags new_bf = bf | BindingFlags.DeclaredOnly;
2666 if (GenericType != null)
2667 return TypeManager.FindMembers (GenericType, mt, new_bf,
2670 return FindMembers (mt, new_bf, null, null);
2674 // Generates xml doc comments (if any), and if required,
2675 // handle warning report.
2677 internal override void GenerateDocComment (DeclSpace ds)
2679 DocUtil.GenerateTypeDocComment (this, ds);
2682 public override string DocCommentHeader {
2683 get { return "T:"; }
2686 public virtual MemberCache BaseCache {
2688 if (base_cache != null)
2690 if (TypeBuilder.BaseType != null)
2691 base_cache = TypeManager.LookupMemberCache (TypeBuilder.BaseType);
2692 if (TypeBuilder.IsInterface)
2693 base_cache = TypeManager.LookupBaseInterfacesCache (TypeBuilder);
2699 public abstract class ClassOrStruct : TypeContainer {
2700 ListDictionary declarative_security;
2702 public ClassOrStruct (NamespaceEntry ns, DeclSpace parent,
2703 MemberName name, Attributes attrs, Kind kind)
2704 : base (ns, parent, name, attrs, kind)
2708 protected override bool AddToContainer (MemberCore symbol, string name)
2710 if (name == MemberName.Name) {
2711 if (symbol is TypeParameter) {
2712 Report.Error (694, symbol.Location,
2713 "Type parameter `{0}' has same name as " +
2714 "containing type, or method", name);
2718 Report.SymbolRelatedToPreviousError (this);
2719 Report.Error (542, symbol.Location, "`{0}': member names cannot be the same as their enclosing type",
2720 symbol.GetSignatureForError ());
2724 return base.AddToContainer (symbol, name);
2727 public override void VerifyMembers ()
2729 base.VerifyMembers ();
2731 if ((events != null) && (RootContext.WarningLevel >= 3)) {
2732 foreach (Event e in events){
2733 if ((e.ModFlags & Modifiers.Accessibility) != Modifiers.PRIVATE)
2736 if ((e.caching_flags & Flags.IsUsed) == 0)
2737 Report.Warning (67, 3, e.Location, "The event `{0}' is never used", e.GetSignatureForError ());
2742 public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
2744 if (a.Type.IsSubclassOf (TypeManager.security_attr_type) && a.CheckSecurityActionValidity (false)) {
2745 if (declarative_security == null)
2746 declarative_security = new ListDictionary ();
2748 a.ExtractSecurityPermissionSet (declarative_security);
2752 if (a.Type == TypeManager.struct_layout_attribute_type && a.GetLayoutKindValue () == LayoutKind.Explicit) {
2753 HasExplicitLayout = true;
2756 base.ApplyAttributeBuilder (a, cb);
2760 /// Defines the default constructors
2762 protected void DefineDefaultConstructor (bool is_static)
2764 // The default instance constructor is public
2765 // If the class is abstract, the default constructor is protected
2766 // The default static constructor is private
2770 mods = Modifiers.STATIC | Modifiers.PRIVATE;
2772 mods = ((ModFlags & Modifiers.ABSTRACT) != 0) ? Modifiers.PROTECTED : Modifiers.PUBLIC;
2775 Constructor c = new Constructor (this, MemberName.Name, mods,
2776 Parameters.EmptyReadOnlyParameters,
2777 new GeneratedBaseInitializer (Location),
2781 c.Block = new ToplevelBlock (null, Location);
2784 void DefineFieldInitializers ()
2786 if (initialized_fields != null) {
2787 EmitContext ec = new EmitContext (this, this, Location, null, null, ModFlags);
2788 ec.IsFieldInitializer = true;
2790 for (int i = 0; i < initialized_fields.Count; ++i) {
2791 FieldInitializer fi = (FieldInitializer)initialized_fields[i];
2792 fi.ResolveStatement (ec);
2793 if (fi.IsDefaultInitializer && RootContext.Optimize) {
2794 // Field is re-initialized to its default value => removed
2795 initialized_fields.RemoveAt (i);
2801 if (initialized_static_fields != null) {
2802 bool has_complex_initializer = false;
2803 EmitContext ec = new EmitContext (this, this, Location, null, null, ModFlags);
2805 ec.IsFieldInitializer = true;
2807 foreach (FieldInitializer fi in initialized_static_fields) {
2808 fi.ResolveStatement (ec);
2809 if (!fi.IsComplexInitializer)
2812 has_complex_initializer = true;
2815 // Need special check to not optimize code like this
2816 // static int a = b = 5;
2817 // static int b = 0;
2818 if (!has_complex_initializer && RootContext.Optimize) {
2819 for (int i = 0; i < initialized_static_fields.Count; ++i) {
2820 FieldInitializer fi = (FieldInitializer)initialized_static_fields[i];
2821 if (fi.IsDefaultInitializer) {
2822 initialized_static_fields.RemoveAt (i);
2828 if (default_static_constructor == null && initialized_static_fields.Count > 0) {
2829 DefineDefaultConstructor (true);
2835 public override bool Define ()
2837 DefineFieldInitializers ();
2839 if (default_static_constructor != null)
2840 default_static_constructor.Define ();
2842 return base.Define ();
2845 public override void Emit ()
2849 if (declarative_security != null) {
2850 foreach (DictionaryEntry de in declarative_security) {
2851 TypeBuilder.AddDeclarativeSecurity ((SecurityAction)de.Key, (PermissionSet)de.Value);
2856 protected override TypeAttributes TypeAttr {
2858 if (default_static_constructor == null)
2859 return base.TypeAttr | TypeAttributes.BeforeFieldInit;
2861 return base.TypeAttr;
2867 // TODO: should be sealed
2868 public class Class : ClassOrStruct {
2869 const int AllowedModifiers =
2872 Modifiers.PROTECTED |
2873 Modifiers.INTERNAL |
2875 Modifiers.ABSTRACT |
2880 public Class (NamespaceEntry ns, DeclSpace parent, MemberName name, int mod,
2882 : base (ns, parent, name, attrs, Kind.Class)
2884 int accmods = Parent.Parent == null ? Modifiers.INTERNAL : Modifiers.PRIVATE;
2885 this.ModFlags = Modifiers.Check (AllowedModifiers, mod, accmods, Location);
2887 if (IsStatic && RootContext.Version == LanguageVersion.ISO_1) {
2888 Report.FeatureIsNotISO1 (Location, "static classes");
2892 public override void ApplyAttributeBuilder(Attribute a, CustomAttributeBuilder cb)
2894 if (a.Type == TypeManager.attribute_usage_type) {
2895 if (BaseType != TypeManager.attribute_type && !BaseType.IsSubclassOf (TypeManager.attribute_type) &&
2896 TypeBuilder.FullName != "System.Attribute") {
2897 Report.Error (641, a.Location, "Attribute `{0}' is only valid on classes derived from System.Attribute", a.GetSignatureForError ());
2901 if (a.Type == TypeManager.conditional_attribute_type &&
2902 !(BaseType == TypeManager.attribute_type || BaseType.IsSubclassOf (TypeManager.attribute_type))) {
2903 Report.Error (1689, a.Location, "Attribute `System.Diagnostics.ConditionalAttribute' is only valid on methods or attribute classes");
2907 if (a.Type == TypeManager.comimport_attr_type &&
2908 !attributes.Contains (TypeManager.guid_attr_type)) {
2909 a.Error_MissingGuidAttribute ();
2913 if (AttributeTester.IsAttributeExcluded (a.Type))
2916 base.ApplyAttributeBuilder (a, cb);
2919 public override AttributeTargets AttributeTargets {
2921 return AttributeTargets.Class;
2925 protected override void DefineContainerMembers (MemberCoreArrayList list)
2931 base.DefineContainerMembers (list);
2935 foreach (MemberCore m in list) {
2936 if (m is Operator) {
2937 Report.Error (715, m.Location, "`{0}': Static classes cannot contain user-defined operators", m.GetSignatureForError ());
2941 if (m is Destructor) {
2942 Report.Error (711, m.Location, "`{0}': Static classes cannot contain destructor", GetSignatureForError ());
2946 if ((m.ModFlags & Modifiers.PROTECTED) != 0) {
2947 Report.Error (1057, m.Location, "`{0}': Static classes cannot contain protected members", m.GetSignatureForError ());
2952 Report.Error (720, m.Location, "`{0}': cannot declare indexers in a static class", m.GetSignatureForError ());
2956 if ((m.ModFlags & Modifiers.STATIC) != 0 || m is Enum || m is Delegate)
2959 if (m is Constructor) {
2960 Report.Error (710, m.Location, "`{0}': Static classes cannot have instance constructors", GetSignatureForError ());
2964 Report.Error (708, m.Location, "`{0}': cannot declare instance members in a static class", m.GetSignatureForError ());
2967 base.DefineContainerMembers (list);
2970 public override TypeBuilder DefineType ()
2972 if ((ModFlags & Modifiers.ABSTRACT) == Modifiers.ABSTRACT && (ModFlags & (Modifiers.SEALED | Modifiers.STATIC)) != 0) {
2973 Report.Error (418, Location, "`{0}': an abstract class cannot be sealed or static", GetSignatureForError ());
2977 if ((ModFlags & (Modifiers.SEALED | Modifiers.STATIC)) == (Modifiers.SEALED | Modifiers.STATIC)) {
2978 Report.Error (441, Location, "`{0}': a class cannot be both static and sealed", GetSignatureForError ());
2982 return base.DefineType ();
2985 protected override bool DoDefineMembers ()
2987 if (InstanceConstructors == null && !IsStatic)
2988 DefineDefaultConstructor (false);
2990 return base.DoDefineMembers ();
2993 public override TypeExpr[] GetClassBases (out TypeExpr base_class)
2995 TypeExpr[] ifaces = base.GetClassBases (out base_class);
2997 if (base_class == null) {
2998 if (RootContext.StdLib)
2999 base_class = TypeManager.system_object_expr;
3000 else if (Name != "System.Object")
3001 base_class = TypeManager.system_object_expr;
3003 if (Kind == Kind.Class && base_class is TypeParameterExpr){
3005 689, base_class.Location,
3006 "Cannot derive from `{0}' because it is a type parameter",
3007 base_class.GetSignatureForError ());
3011 if (base_class.Type.IsArray || base_class.Type.IsPointer) {
3012 Report.Error (1521, base_class.Location, "Invalid base type");
3016 if (base_class.IsSealed){
3017 Report.SymbolRelatedToPreviousError (base_class.Type);
3018 if (base_class.Type.IsAbstract) {
3019 Report.Error (709, Location, "`{0}': Cannot derive from static class `{1}'",
3020 GetSignatureForError (), TypeManager.CSharpName (base_class.Type));
3022 Report.Error (509, Location, "`{0}': cannot derive from sealed class `{1}'",
3023 GetSignatureForError (), TypeManager.CSharpName (base_class.Type));
3028 if (!base_class.CanInheritFrom ()){
3029 Report.Error (644, Location, "`{0}' cannot derive from special class `{1}'",
3030 GetSignatureForError (), base_class.GetSignatureForError ());
3034 if (!base_class.AsAccessible (this, ModFlags)) {
3035 Report.SymbolRelatedToPreviousError (base_class.Type);
3036 Report.Error (60, Location, "Inconsistent accessibility: base class `{0}' is less accessible than class `{1}'",
3037 TypeManager.CSharpName (base_class.Type), GetSignatureForError ());
3042 if (base_class != TypeManager.system_object_expr) {
3043 Report.Error (713, Location, "Static class `{0}' cannot derive from type `{1}'. Static classes must derive from object",
3044 GetSignatureForError (), base_class.GetSignatureForError ());
3048 if (ifaces != null) {
3049 foreach (TypeExpr t in ifaces)
3050 Report.SymbolRelatedToPreviousError (t.Type);
3051 Report.Error (714, Location, "`{0}': static classes cannot implement interfaces", GetSignatureForError ());
3058 /// Search for at least one defined condition in ConditionalAttribute of attribute class
3059 /// Valid only for attribute classes.
3060 public bool IsExcluded ()
3062 if ((caching_flags & Flags.Excluded_Undetected) == 0)
3063 return (caching_flags & Flags.Excluded) != 0;
3065 caching_flags &= ~Flags.Excluded_Undetected;
3067 if (OptAttributes == null)
3070 Attribute[] attrs = OptAttributes.SearchMulti (TypeManager.conditional_attribute_type);
3075 foreach (Attribute a in attrs) {
3076 string condition = a.GetConditionalAttributeValue ();
3077 if (RootContext.AllDefines.Contains (condition))
3081 caching_flags |= Flags.Excluded;
3087 return (ModFlags & Modifiers.STATIC) != 0;
3092 // FIXME: How do we deal with the user specifying a different
3095 protected override TypeAttributes TypeAttr {
3097 TypeAttributes ta = base.TypeAttr | TypeAttributes.AutoLayout | TypeAttributes.Class;
3099 ta |= TypeAttributes.Abstract | TypeAttributes.Sealed;
3105 public sealed class Struct : ClassOrStruct {
3107 // Modifiers allowed in a struct declaration
3109 const int AllowedModifiers =
3112 Modifiers.PROTECTED |
3113 Modifiers.INTERNAL |
3117 public Struct (NamespaceEntry ns, DeclSpace parent, MemberName name,
3118 int mod, Attributes attrs)
3119 : base (ns, parent, name, attrs, Kind.Struct)
3123 if (parent.Parent == null)
3124 accmods = Modifiers.INTERNAL;
3126 accmods = Modifiers.PRIVATE;
3128 this.ModFlags = Modifiers.Check (AllowedModifiers, mod, accmods, Location);
3130 this.ModFlags |= Modifiers.SEALED;
3133 public override AttributeTargets AttributeTargets {
3135 return AttributeTargets.Struct;
3139 const TypeAttributes DefaultTypeAttributes =
3140 TypeAttributes.SequentialLayout |
3141 TypeAttributes.Sealed |
3142 TypeAttributes.BeforeFieldInit;
3145 public override TypeExpr[] GetClassBases (out TypeExpr base_class)
3147 TypeExpr[] ifaces = base.GetClassBases (out base_class);
3149 // If we are compiling our runtime,
3150 // and we are defining ValueType, then our
3151 // base is `System.Object'.
3153 if (base_class == null) {
3154 if (!RootContext.StdLib && Name == "System.ValueType")
3155 base_class = TypeManager.system_object_expr;
3157 base_class = TypeManager.system_valuetype_expr;
3164 // FIXME: Allow the user to specify a different set of attributes
3165 // in some cases (Sealed for example is mandatory for a class,
3166 // but what SequentialLayout can be changed
3168 protected override TypeAttributes TypeAttr {
3170 return base.TypeAttr | DefaultTypeAttributes;
3174 public override void RegisterFieldForInitialization (MemberCore field, FieldInitializer expression)
3176 if ((field.ModFlags & Modifiers.STATIC) == 0) {
3177 Report.Error (573, field.Location, "`{0}': Structs cannot have instance field initializers",
3178 field.GetSignatureForError ());
3181 base.RegisterFieldForInitialization (field, expression);
3189 public sealed class Interface : TypeContainer, IMemberContainer {
3192 /// Modifiers allowed in a class declaration
3194 public const int AllowedModifiers =
3197 Modifiers.PROTECTED |
3198 Modifiers.INTERNAL |
3202 public Interface (NamespaceEntry ns, DeclSpace parent, MemberName name, int mod,
3204 : base (ns, parent, name, attrs, Kind.Interface)
3208 if (parent.Parent == null)
3209 accmods = Modifiers.INTERNAL;
3211 accmods = Modifiers.PRIVATE;
3213 this.ModFlags = Modifiers.Check (AllowedModifiers, mod, accmods, name.Location);
3216 public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
3218 if (a.Type == TypeManager.comimport_attr_type &&
3219 !attributes.Contains (TypeManager.guid_attr_type)) {
3220 a.Error_MissingGuidAttribute ();
3223 base.ApplyAttributeBuilder (a, cb);
3227 public override AttributeTargets AttributeTargets {
3229 return AttributeTargets.Interface;
3233 const TypeAttributes DefaultTypeAttributes =
3234 TypeAttributes.AutoLayout |
3235 TypeAttributes.Abstract |
3236 TypeAttributes.Interface;
3238 protected override TypeAttributes TypeAttr {
3240 return base.TypeAttr | DefaultTypeAttributes;
3244 protected override bool VerifyClsCompliance ()
3246 if (!base.VerifyClsCompliance ())
3249 if (ifaces != null) {
3250 foreach (Type t in ifaces) {
3251 if (AttributeTester.IsClsCompliant (t))
3254 Report.SymbolRelatedToPreviousError (t);
3255 Report.Warning (3027, 1, Location, "`{0}' is not CLS-compliant because base interface `{1}' is not CLS-compliant",
3256 GetSignatureForError (), TypeManager.CSharpName (t));
3264 // It is used as a base class for all property based members
3265 // This includes properties, indexers, and events
3266 public abstract class PropertyBasedMember : InterfaceMemberBase
3268 public PropertyBasedMember (DeclSpace parent, GenericMethod generic,
3269 Expression type, int mod, int allowed_mod, bool is_iface,
3270 MemberName name, Attributes attrs)
3271 : base (parent, generic, type, mod, allowed_mod, is_iface, name, attrs)
3275 protected override bool CheckForDuplications ()
3277 throw new NotSupportedException ();
3280 protected override bool VerifyClsCompliance ()
3282 if (!base.VerifyClsCompliance ())
3285 if (!AttributeTester.IsClsCompliant (MemberType)) {
3286 Report.Error (3003, Location, "Type of `{0}' is not CLS-compliant",
3287 GetSignatureForError ());
3295 public abstract class MethodCore : InterfaceMemberBase
3297 public readonly Parameters Parameters;
3298 protected ToplevelBlock block;
3300 public MethodCore (DeclSpace parent, GenericMethod generic,
3301 Expression type, int mod, int allowed_mod, bool is_iface,
3302 MemberName name, Attributes attrs, Parameters parameters)
3303 : base (parent, generic, type, mod, allowed_mod, is_iface, name, attrs)
3305 Parameters = parameters;
3309 // Returns the System.Type array for the parameters of this method
3311 public Type [] ParameterTypes {
3313 return Parameters.Types;
3317 public Parameters ParameterInfo
3324 public ToplevelBlock Block {
3334 protected bool DoDefineParameters ()
3336 IResolveContext rc = GenericMethod == null ? this : (IResolveContext)ds;
3338 // Check if arguments were correct
3339 if (!Parameters.Resolve (rc))
3342 return CheckParameters (Parameters);
3345 protected override bool CheckBase ()
3347 // Check whether arguments were correct.
3348 if (!DoDefineParameters ())
3351 if (!base.CheckBase ())
3357 // TODO: create a special method for operators only to make code better
3358 protected bool IsDuplicateImplementation (MethodCore method)
3363 Operator op2 = null;
3364 Operator op1 = null;
3366 if (!(method.MemberName.Equals (MemberName)))
3368 op1 = this as Operator;
3369 if (op1 == null || !(op1.OperatorType == Operator.OpType.Explicit || op1.OperatorType == Operator.OpType.Implicit))
3372 op2 = method as Operator;
3373 if (op2 == null || !(op2.OperatorType == Operator.OpType.Explicit || op2.OperatorType == Operator.OpType.Implicit))
3376 op1 = this as Operator;
3377 op2 = method as Operator;
3380 Type[] param_types = method.ParameterTypes;
3381 // This never happen. Rewrite this as Equal
3382 if (param_types == null && ParameterTypes == null)
3384 if (param_types == null || ParameterTypes == null)
3387 if (param_types.Length != ParameterTypes.Length)
3390 if (method.Parameters.HasArglist != Parameters.HasArglist)
3395 for (int i = 0; i < param_types.Length; i++) {
3396 if (param_types [i] != ParameterTypes [i])
3400 if (IsExplicitImpl && (method.InterfaceType != InterfaceType))
3403 // TODO: make operator compatible with MethodCore to avoid this
3404 if (op1 != null && op2 != null) {
3405 if (MemberType != method.MemberType)
3411 // Try to report 663: method only differs on out/ref
3413 Parameters info = ParameterInfo;
3414 Parameters other_info = method.ParameterInfo;
3415 for (int i = 0; i < info.Count; i++){
3416 if (info.ParameterModifier (i) != other_info.ParameterModifier (i)){
3417 Report.SymbolRelatedToPreviousError (method);
3418 Report.Error (663, Location, "`{0}': Methods cannot differ only on their use of ref and out on a parameters",
3419 GetSignatureForError ());
3424 Report.SymbolRelatedToPreviousError (method);
3425 if (this is Operator && method is Operator)
3426 Report.Error (557, Location, "Duplicate user-defined conversion in type `{0}'", Parent.Name);
3428 Report.Error (111, Location, TypeContainer.Error111, GetSignatureForError ());
3437 // Returns a string that represents the signature for this
3438 // member which should be used in XML documentation.
3440 public override string GetDocCommentName (DeclSpace ds)
3442 return DocUtil.GetMethodDocCommentName (this, Parameters, ds);
3446 // Raised (and passed an XmlElement that contains the comment)
3447 // when GenerateDocComment is writing documentation expectedly.
3449 // FIXME: with a few effort, it could be done with XmlReader,
3450 // that means removal of DOM use.
3452 internal override void OnGenerateDocComment (XmlElement el)
3454 DocUtil.OnMethodGenerateDocComment (this, el);
3458 // Represents header string for documentation comment.
3460 public override string DocCommentHeader
3462 get { return "M:"; }
3465 public virtual void SetYields ()
3467 ModFlags |= Modifiers.METHOD_YIELDS;
3470 protected override bool VerifyClsCompliance ()
3472 if (!base.VerifyClsCompliance ())
3475 if (Parameters.HasArglist) {
3476 Report.Error (3000, Location, "Methods with variable arguments are not CLS-compliant");
3479 if (!AttributeTester.IsClsCompliant (MemberType)) {
3480 Report.Error (3002, Location, "Return type of `{0}' is not CLS-compliant",
3481 GetSignatureForError ());
3484 Parameters.VerifyClsCompliance ();
3490 public abstract class InterfaceMemberBase : MemberBase {
3492 // Whether this is an interface member.
3494 public bool IsInterface;
3497 // If true, this is an explicit interface implementation
3499 public bool IsExplicitImpl;
3502 // The interface type we are explicitly implementing
3504 public Type InterfaceType;
3507 // The method we're overriding if this is an override method.
3509 protected MethodInfo base_method;
3511 readonly int explicit_mod_flags;
3512 public MethodAttributes flags;
3514 public InterfaceMemberBase (DeclSpace parent, GenericMethod generic,
3515 Expression type, int mod, int allowed_mod, bool is_iface,
3516 MemberName name, Attributes attrs)
3517 : base (parent, generic, type, mod, allowed_mod, Modifiers.PRIVATE,
3520 IsInterface = is_iface;
3521 IsExplicitImpl = (MemberName.Left != null);
3522 explicit_mod_flags = mod;
3525 protected override bool CheckBase ()
3527 if (!base.CheckBase ())
3530 if ((caching_flags & Flags.TestMethodDuplication) != 0 && !CheckForDuplications ())
3536 // Is null for System.Object while compiling corlib and base interfaces
3537 if (Parent.PartialContainer.BaseCache == null) {
3538 if ((ModFlags & Modifiers.NEW) != 0) {
3539 Report.Warning (109, 4, Location, "The member `{0}' does not hide an inherited member. The new keyword is not required", GetSignatureForError ());
3544 Type base_ret_type = null;
3545 base_method = FindOutBaseMethod (ref base_ret_type);
3547 // method is override
3548 if (base_method != null) {
3549 if (!CheckMethodAgainstBase (base_ret_type))
3552 if ((ModFlags & Modifiers.OVERRIDE) != 0) {
3553 ObsoleteAttribute oa = AttributeTester.GetMethodObsoleteAttribute (base_method);
3555 if (OptAttributes == null || !OptAttributes.Contains (TypeManager.obsolete_attribute_type)) {
3556 Report.SymbolRelatedToPreviousError (base_method);
3557 Report.Warning (672, 1, Location, "Member `{0}' overrides obsolete member `{1}'. Add the Obsolete attribute to `{0}'",
3558 GetSignatureForError (), TypeManager.CSharpSignature (base_method));
3561 if (OptAttributes != null && OptAttributes.Contains (TypeManager.obsolete_attribute_type)) {
3562 Report.Warning (809, 1, Location, "Obsolete member `{0}' overrides non-obsolete member `{1}'",
3563 GetSignatureForError (), TypeManager.CSharpSignature (base_method));
3570 MemberInfo conflict_symbol = Parent.PartialContainer.FindBaseMemberWithSameName (Name, !((this is Event) || (this is Property)));
3571 if ((ModFlags & Modifiers.OVERRIDE) != 0) {
3572 if (conflict_symbol != null) {
3573 Report.SymbolRelatedToPreviousError (conflict_symbol);
3575 Report.Error (72, Location, "`{0}': cannot override because `{1}' is not an event", GetSignatureForError (), TypeManager.GetFullNameSignature (conflict_symbol));
3576 else if (this is PropertyBase)
3577 Report.Error (544, Location, "`{0}': cannot override because `{1}' is not a property", GetSignatureForError (), TypeManager.GetFullNameSignature (conflict_symbol));
3579 Report.Error (505, Location, "`{0}': cannot override because `{1}' is not a method", GetSignatureForError (), TypeManager.GetFullNameSignature (conflict_symbol));
3581 Report.Error (115, Location, "`{0}' is marked as an override but no suitable {1} found to override",
3582 GetSignatureForError (), SimpleName.GetMemberType (this));
3587 if (conflict_symbol == null) {
3588 if ((RootContext.WarningLevel >= 4) && ((ModFlags & Modifiers.NEW) != 0)) {
3589 Report.Warning (109, 4, Location, "The member `{0}' does not hide an inherited member. The new keyword is not required", GetSignatureForError ());
3594 if ((ModFlags & Modifiers.NEW) == 0) {
3595 if (this is Method && conflict_symbol is MethodBase)
3598 Report.SymbolRelatedToPreviousError (conflict_symbol);
3599 Report.Warning (108, 2, Location, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
3600 GetSignatureForError (), TypeManager.GetFullNameSignature (conflict_symbol));
3607 // Performs various checks on the MethodInfo `mb' regarding the modifier flags
3608 // that have been defined.
3610 // `name' is the user visible name for reporting errors (this is used to
3611 // provide the right name regarding method names and properties)
3613 bool CheckMethodAgainstBase (Type baseMethodType)
3617 if ((ModFlags & Modifiers.OVERRIDE) != 0){
3618 if (!(base_method.IsAbstract || base_method.IsVirtual)){
3619 Report.Error (506, Location,
3620 "`{0}': cannot override inherited member `{1}' because it is not marked virtual, abstract or override",
3621 GetSignatureForError (), TypeManager.CSharpSignature (base_method));
3625 // Now we check that the overriden method is not final
3627 if (base_method.IsFinal) {
3628 Report.SymbolRelatedToPreviousError (base_method);
3629 Report.Error (239, Location, "`{0}': cannot override inherited member `{1}' because it is sealed",
3630 GetSignatureForError (), TypeManager.CSharpSignature (base_method));
3634 // Check that the permissions are not being changed
3636 MethodAttributes thisp = flags & MethodAttributes.MemberAccessMask;
3637 MethodAttributes base_classp = base_method.Attributes & MethodAttributes.MemberAccessMask;
3639 if (!CheckAccessModifiers (thisp, base_classp, base_method)) {
3640 Error_CannotChangeAccessModifiers (base_method, base_classp, null);
3644 if (!TypeManager.IsEqual (MemberType, TypeManager.TypeToCoreType (baseMethodType))) {
3645 Report.SymbolRelatedToPreviousError (base_method);
3646 if (this is PropertyBasedMember) {
3647 Report.Error (1715, Location, "`{0}': type must be `{1}' to match overridden member `{2}'",
3648 GetSignatureForError (), TypeManager.CSharpName (baseMethodType), TypeManager.CSharpSignature (base_method));
3651 Report.Error (508, Location, "`{0}': return type must be `{1}' to match overridden member `{2}'",
3652 GetSignatureForError (), TypeManager.CSharpName (baseMethodType), TypeManager.CSharpSignature (base_method));
3658 if ((ModFlags & Modifiers.NEW) == 0) {
3659 if ((ModFlags & Modifiers.OVERRIDE) == 0 && Name != "Finalize") {
3660 ModFlags |= Modifiers.NEW;
3661 Report.SymbolRelatedToPreviousError (base_method);
3662 if (!IsInterface && (base_method.IsVirtual || base_method.IsAbstract)) {
3663 Report.Warning (114, 2, Location, "`{0}' hides inherited member `{1}'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword",
3664 GetSignatureForError (), TypeManager.CSharpSignature (base_method));
3666 Report.Warning (108, 2, Location, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
3667 GetSignatureForError (), TypeManager.CSharpSignature (base_method));
3671 if (base_method.IsAbstract && !IsInterface) {
3672 Report.SymbolRelatedToPreviousError (base_method);
3673 Report.Error (533, Location, "`{0}' hides inherited abstract member `{1}'",
3674 GetSignatureForError (), TypeManager.CSharpSignature (base_method));
3682 protected bool CheckAccessModifiers (MethodAttributes thisp, MethodAttributes base_classp, MethodInfo base_method)
3684 if ((base_classp & MethodAttributes.FamORAssem) == MethodAttributes.FamORAssem){
3686 // when overriding protected internal, the method can be declared
3687 // protected internal only within the same assembly
3690 if ((thisp & MethodAttributes.FamORAssem) == MethodAttributes.FamORAssem){
3691 if (Parent.TypeBuilder.Assembly != base_method.DeclaringType.Assembly){
3693 // assemblies differ - report an error
3697 } else if (thisp != base_classp) {
3699 // same assembly, but other attributes differ - report an error
3704 } else if ((thisp & MethodAttributes.Family) != MethodAttributes.Family) {
3706 // if it's not "protected internal", it must be "protected"
3710 } else if (Parent.TypeBuilder.Assembly == base_method.DeclaringType.Assembly) {
3712 // protected within the same assembly - an error
3715 } else if ((thisp & ~(MethodAttributes.Family | MethodAttributes.FamORAssem)) !=
3716 (base_classp & ~(MethodAttributes.Family | MethodAttributes.FamORAssem))) {
3718 // protected ok, but other attributes differ - report an error
3724 return (thisp == base_classp);
3728 public bool CheckAbstractAndExtern (bool has_block)
3730 if (Parent.PartialContainer.Kind == Kind.Interface)
3734 if ((ModFlags & Modifiers.EXTERN) != 0) {
3735 Report.Error (179, Location, "`{0}' cannot declare a body because it is marked extern",
3736 GetSignatureForError ());
3740 if ((ModFlags & Modifiers.ABSTRACT) != 0) {
3741 Report.Error (500, Location, "`{0}' cannot declare a body because it is marked abstract",
3742 GetSignatureForError ());
3746 if ((ModFlags & (Modifiers.ABSTRACT | Modifiers.EXTERN)) == 0) {
3747 Report.Error (501, Location, "`{0}' must declare a body because it is not marked abstract or extern",
3748 GetSignatureForError ());
3756 protected bool CheckParameters (Parameters parameters)
3760 foreach (Type partype in parameters.Types){
3761 if (partype.IsPointer){
3762 if (!TypeManager.VerifyUnManaged (TypeManager.GetElementType (partype), Location))
3766 if (ds.AsAccessible (partype, ModFlags))
3769 Report.SymbolRelatedToPreviousError (partype);
3770 if (this is Indexer)
3771 Report.Error (55, Location,
3772 "Inconsistent accessibility: parameter type `" +
3773 TypeManager.CSharpName (partype) + "' is less " +
3774 "accessible than indexer `" + GetSignatureForError () + "'");
3775 else if (this is Operator)
3776 Report.Error (57, Location,
3777 "Inconsistent accessibility: parameter type `" +
3778 TypeManager.CSharpName (partype) + "' is less " +
3779 "accessible than operator `" + GetSignatureForError () + "'");
3781 Report.Error (51, Location,
3782 "Inconsistent accessibility: parameter type `" +
3783 TypeManager.CSharpName (partype) + "' is less " +
3784 "accessible than method `" + GetSignatureForError () + "'");
3791 protected override bool DoDefine()
3793 if (!base.DoDefine ())
3796 if (IsExplicitImpl) {
3797 Expression expr = MemberName.Left.GetTypeExpression ();
3798 TypeExpr texpr = expr.ResolveAsTypeTerminal (this, false);
3802 InterfaceType = texpr.Type;
3804 if (!InterfaceType.IsInterface) {
3805 Report.Error (538, Location, "`{0}' in explicit interface declaration is not an interface", TypeManager.CSharpName (InterfaceType));
3809 if (!Parent.PartialContainer.VerifyImplements (this))
3816 protected virtual bool DoDefineBase ()
3819 throw new InternalErrorException ();
3822 ModFlags = Modifiers.PUBLIC |
3823 Modifiers.ABSTRACT |
3824 Modifiers.VIRTUAL | (ModFlags & Modifiers.UNSAFE) | (ModFlags & Modifiers.NEW);
3826 flags = MethodAttributes.Public |
3827 MethodAttributes.Abstract |
3828 MethodAttributes.HideBySig |
3829 MethodAttributes.NewSlot |
3830 MethodAttributes.Virtual;
3832 if (!Parent.PartialContainer.MethodModifiersValid (this))
3835 flags = Modifiers.MethodAttr (ModFlags);
3838 if (IsExplicitImpl) {
3839 Expression expr = MemberName.Left.GetTypeExpression ();
3840 TypeExpr iface_texpr = expr.ResolveAsTypeTerminal (this, false);
3841 if (iface_texpr == null)
3844 InterfaceType = iface_texpr.Type;
3846 if (!InterfaceType.IsInterface) {
3847 Report.Error (538, Location, "'{0}' in explicit interface declaration is not an interface", TypeManager.CSharpName (InterfaceType));
3851 if (!Parent.PartialContainer.VerifyImplements (this))
3854 Modifiers.Check (Modifiers.AllowedExplicitImplFlags, explicit_mod_flags, 0, Location);
3860 protected void Error_CannotChangeAccessModifiers (MemberInfo base_method, MethodAttributes ma, string suffix)
3862 Report.SymbolRelatedToPreviousError (base_method);
3863 string base_name = TypeManager.GetFullNameSignature (base_method);
3864 string this_name = GetSignatureForError ();
3865 if (suffix != null) {
3866 base_name += suffix;
3867 this_name += suffix;
3870 Report.Error (507, Location, "`{0}': cannot change access modifiers when overriding `{1}' inherited member `{2}'",
3871 this_name, Modifiers.GetDescription (ma), base_name);
3874 protected static string Error722 {
3876 return "`{0}': static types cannot be used as return types";
3881 /// For custom member duplication search in a container
3883 protected abstract bool CheckForDuplications ();
3886 /// Gets base method and its return type
3888 protected abstract MethodInfo FindOutBaseMethod (ref Type base_ret_type);
3891 // The "short" name of this property / indexer / event. This is the
3892 // name without the explicit interface.
3894 public string ShortName
3896 get { return MemberName.Name; }
3897 set { SetMemberName (new MemberName (MemberName.Left, value, Location)); }
3900 protected override bool VerifyClsCompliance ()
3902 if (!base.VerifyClsCompliance ()) {
3903 if (IsInterface && HasClsCompliantAttribute && Parent.IsClsComplianceRequired ()) {
3904 Report.Error (3010, Location, "`{0}': CLS-compliant interfaces must have only CLS-compliant members", GetSignatureForError ());
3907 if ((ModFlags & Modifiers.ABSTRACT) != 0 && Parent.TypeBuilder.IsClass && IsExposedFromAssembly () && Parent.IsClsComplianceRequired ()) {
3908 Report.Error (3011, Location, "`{0}': only CLS-compliant members can be abstract", GetSignatureForError ());
3913 if (GenericMethod != null)
3914 GenericMethod.VerifyClsCompliance ();
3919 public override bool IsUsed
3921 get { return IsExplicitImpl || base.IsUsed; }
3926 public abstract class MethodOrOperator : MethodCore, IMethodData
3928 public MethodBuilder MethodBuilder;
3929 ReturnParameter return_attributes;
3930 ListDictionary declarative_security;
3931 protected MethodData MethodData;
3934 ArrayList anonymous_methods;
3936 static string[] attribute_targets = new string [] { "method", "return" };
3938 protected MethodOrOperator (DeclSpace parent, GenericMethod generic, Expression type, int mod,
3939 int allowed_mod, bool is_interface, MemberName name,
3940 Attributes attrs, Parameters parameters)
3941 : base (parent, generic, type, mod, allowed_mod, is_interface, name,
3946 public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
3948 if (a.Target == AttributeTargets.ReturnValue) {
3949 if (return_attributes == null)
3950 return_attributes = new ReturnParameter (MethodBuilder, Location);
3952 return_attributes.ApplyAttributeBuilder (a, cb);
3956 if (a.Type == TypeManager.methodimpl_attr_type &&
3957 (a.GetMethodImplOptions () & MethodImplOptions.InternalCall) != 0) {
3958 MethodBuilder.SetImplementationFlags (MethodImplAttributes.InternalCall | MethodImplAttributes.Runtime);
3961 if (a.Type == TypeManager.dllimport_type) {
3962 const int extern_static = Modifiers.EXTERN | Modifiers.STATIC;
3963 if ((ModFlags & extern_static) != extern_static) {
3964 Report.Error (601, a.Location, "The DllImport attribute must be specified on a method marked `static' and `extern'");
3970 if (a.Type.IsSubclassOf (TypeManager.security_attr_type) && a.CheckSecurityActionValidity (false)) {
3971 if (declarative_security == null)
3972 declarative_security = new ListDictionary ();
3973 a.ExtractSecurityPermissionSet (declarative_security);
3977 MethodBuilder.SetCustomAttribute (cb);
3980 public override AttributeTargets AttributeTargets {
3982 return AttributeTargets.Method;
3986 public virtual EmitContext CreateEmitContext (DeclSpace tc, ILGenerator ig)
3988 return new EmitContext (
3989 this, tc, this.ds, Location, ig, MemberType, ModFlags, false);
3992 public void AddAnonymousMethod (AnonymousMethodExpression anonymous)
3994 if (anonymous_methods == null)
3995 anonymous_methods = new ArrayList ();
3996 anonymous_methods.Add (anonymous);
3999 protected bool DefineGenericMethod ()
4001 if (!DoDefineBase ())
4005 if (GenericMethod != null) {
4006 string method_name = MemberName.Name;
4008 if (IsExplicitImpl) {
4009 method_name = TypeManager.CSharpName (InterfaceType) +
4013 MethodBuilder = Parent.TypeBuilder.DefineMethod (method_name, flags);
4015 if (!GenericMethod.Define (MethodBuilder, block))
4023 public bool ResolveMembers ()
4025 if (!DefineGenericMethod ())
4028 if ((ModFlags & Modifiers.METHOD_YIELDS) != 0) {
4029 iterator = Iterator.CreateIterator (this, Parent, GenericMethod, ModFlags);
4030 if (iterator == null)
4034 if (anonymous_methods != null) {
4035 foreach (AnonymousMethodExpression ame in anonymous_methods) {
4036 if (!ame.CreateAnonymousHelpers ())
4044 public override bool Define ()
4049 if (!CheckAbstractAndExtern (block != null))
4055 MethodData = new MethodData (
4056 this, ModFlags, flags, this, MethodBuilder, GenericMethod, base_method);
4058 if (!MethodData.Define (Parent.PartialContainer))
4061 MethodBuilder = MethodData.MethodBuilder;
4063 if (MemberType.IsAbstract && MemberType.IsSealed) {
4064 Report.Error (722, Location, Error722, TypeManager.CSharpName (MemberType));
4071 public override void Emit ()
4073 if (OptAttributes != null)
4074 OptAttributes.Emit ();
4076 if (declarative_security != null) {
4077 foreach (DictionaryEntry de in declarative_security) {
4078 MethodBuilder.AddDeclarativeSecurity ((SecurityAction)de.Key, (PermissionSet)de.Value);
4085 protected void Error_ConditionalAttributeIsNotValid ()
4087 Report.Error (577, Location,
4088 "Conditional not valid on `{0}' because it is a constructor, destructor, operator or explicit interface implementation",
4089 GetSignatureForError ());
4092 public override bool MarkForDuplicationCheck ()
4094 caching_flags |= Flags.TestMethodDuplication;
4098 public override string[] ValidAttributeTargets {
4100 return attribute_targets;
4104 #region IMethodData Members
4106 public CallingConventions CallingConventions {
4108 CallingConventions cc = Parameters.CallingConvention;
4109 if (Parameters.HasArglist)
4110 block.HasVarargs = true;
4113 if ((ModFlags & Modifiers.STATIC) == 0)
4114 cc |= CallingConventions.HasThis;
4116 // FIXME: How is `ExplicitThis' used in C#?
4122 public Type ReturnType {
4128 public MemberName MethodName {
4134 public Iterator Iterator {
4135 get { return iterator; }
4138 public new Location Location {
4140 return base.Location;
4144 protected override bool CheckBase ()
4146 if (!base.CheckBase ())
4149 // TODO: Destructor should derive from MethodCore
4150 if (base_method != null && (ModFlags & Modifiers.OVERRIDE) != 0 && Name == "Finalize" &&
4151 base_method.DeclaringType == TypeManager.object_type && !(this is Destructor)) {
4152 Report.Error (249, Location, "Do not override object.Finalize. Instead, provide a destructor");
4160 /// Returns true if method has conditional attribute and the conditions is not defined (method is excluded).
4162 public bool IsExcluded () {
4163 if ((caching_flags & Flags.Excluded_Undetected) == 0)
4164 return (caching_flags & Flags.Excluded) != 0;
4166 caching_flags &= ~Flags.Excluded_Undetected;
4168 if (base_method == null) {
4169 if (OptAttributes == null)
4172 Attribute[] attrs = OptAttributes.SearchMulti (TypeManager.conditional_attribute_type);
4177 foreach (Attribute a in attrs) {
4178 string condition = a.GetConditionalAttributeValue ();
4179 if (condition == null)
4182 if (RootContext.AllDefines.Contains (condition))
4186 caching_flags |= Flags.Excluded;
4190 IMethodData md = TypeManager.GetMethod (base_method);
4192 if (AttributeTester.IsConditionalMethodExcluded (base_method)) {
4193 caching_flags |= Flags.Excluded;
4199 if (md.IsExcluded ()) {
4200 caching_flags |= Flags.Excluded;
4206 GenericMethod IMethodData.GenericMethod {
4208 return GenericMethod;
4216 public class SourceMethod : ISourceMethod
4221 protected SourceMethod (DeclSpace parent, MethodBase builder,
4222 ISourceFile file, Location start, Location end)
4224 this.parent = parent;
4225 this.builder = builder;
4227 CodeGen.SymbolWriter.OpenMethod (file, this, start.Row, start.Column, end.Row, start.Column);
4230 public string Name {
4231 get { return builder.Name; }
4234 public int NamespaceID {
4235 get { return parent.NamespaceEntry.SymbolFileID; }
4240 if (builder is MethodBuilder)
4241 return ((MethodBuilder) builder).GetToken ().Token;
4242 else if (builder is ConstructorBuilder)
4243 return ((ConstructorBuilder) builder).GetToken ().Token;
4245 throw new NotSupportedException ();
4249 public void CloseMethod ()
4251 if (CodeGen.SymbolWriter != null)
4252 CodeGen.SymbolWriter.CloseMethod ();
4255 public static SourceMethod Create (DeclSpace parent, MethodBase builder, Block block)
4257 if (CodeGen.SymbolWriter == null)
4262 Location start_loc = block.StartLocation;
4263 if (start_loc.IsNull)
4266 Location end_loc = block.EndLocation;
4270 ISourceFile file = start_loc.SourceFile;
4274 return new SourceMethod (
4275 parent, builder, file, start_loc, end_loc);
4279 public class Method : MethodOrOperator, IAnonymousHost {
4282 /// Modifiers allowed in a class declaration
4284 const int AllowedModifiers =
4287 Modifiers.PROTECTED |
4288 Modifiers.INTERNAL |
4293 Modifiers.OVERRIDE |
4294 Modifiers.ABSTRACT |
4296 Modifiers.METHOD_YIELDS |
4299 const int AllowedInterfaceModifiers =
4300 Modifiers.NEW | Modifiers.UNSAFE;
4303 // return_type can be "null" for VOID values.
4305 public Method (DeclSpace parent, GenericMethod generic,
4306 Expression return_type, int mod, bool is_iface,
4307 MemberName name, Parameters parameters, Attributes attrs)
4308 : base (parent, generic, return_type, mod,
4309 is_iface ? AllowedInterfaceModifiers : AllowedModifiers,
4310 is_iface, name, attrs, parameters)
4314 public override string GetSignatureForError()
4316 return base.GetSignatureForError () + Parameters.GetSignatureForError ();
4319 void Error_DuplicateEntryPoint (MethodInfo b, Location location)
4321 Report.Error (17, location,
4322 "Program `{0}' has more than one entry point defined: `{1}'",
4323 CodeGen.FileName, TypeManager.CSharpSignature(b));
4326 bool IsEntryPoint (Parameters pinfo)
4328 if (ReturnType != TypeManager.void_type &&
4329 ReturnType != TypeManager.int32_type)
4332 if (pinfo.Count == 0)
4335 if (pinfo.Count > 1)
4338 Type t = pinfo.ParameterType (0);
4340 (t.GetArrayRank () == 1) &&
4341 (TypeManager.GetElementType (t) == TypeManager.string_type) &&
4342 (pinfo.ParameterModifier (0) == Parameter.Modifier.NONE))
4348 public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
4350 if (a.Type == TypeManager.conditional_attribute_type) {
4351 if (IsExplicitImpl) {
4352 Error_ConditionalAttributeIsNotValid ();
4356 if (ReturnType != TypeManager.void_type) {
4357 Report.Error (578, Location, "Conditional not valid on `{0}' because its return type is not void", GetSignatureForError ());
4361 if ((ModFlags & Modifiers.OVERRIDE) != 0) {
4362 Report.Error (243, Location, "Conditional not valid on `{0}' because it is an override method", GetSignatureForError ());
4367 Report.Error (582, Location, "Conditional not valid on interface members");
4371 if (MethodData.implementing != null) {
4372 Report.Error (629, Location, "Conditional member `{0}' cannot implement interface member `{1}'",
4373 GetSignatureForError (), TypeManager.CSharpSignature (MethodData.implementing));
4377 for (int i = 0; i < ParameterInfo.Count; ++i) {
4378 if ((ParameterInfo.ParameterModifier (i) & Parameter.Modifier.OUTMASK) != 0) {
4379 Report.Error (685, Location, "Conditional method `{0}' cannot have an out parameter", GetSignatureForError ());
4385 base.ApplyAttributeBuilder (a, cb);
4388 protected override bool CheckForDuplications ()
4390 ArrayList ar = Parent.PartialContainer.Methods;
4392 int arLen = ar.Count;
4394 for (int i = 0; i < arLen; i++) {
4395 Method m = (Method) ar [i];
4396 if (IsDuplicateImplementation (m))
4401 ar = Parent.PartialContainer.Properties;
4403 for (int i = 0; i < ar.Count; ++i) {
4404 PropertyBase pb = (PropertyBase) ar [i];
4405 if (pb.AreAccessorsDuplicateImplementation (this))
4410 ar = Parent.PartialContainer.Indexers;
4412 for (int i = 0; i < ar.Count; ++i) {
4413 PropertyBase pb = (PropertyBase) ar [i];
4414 if (pb.AreAccessorsDuplicateImplementation (this))
4419 ar = Parent.PartialContainer.Events;
4421 for (int i = 0; i < ar.Count; ++i) {
4422 Event ev = (Event) ar [i];
4423 if (ev.AreAccessorsDuplicateImplementation (this))
4434 public override bool Define ()
4436 if (!base.Define ())
4439 if (RootContext.StdLib && (ReturnType == TypeManager.arg_iterator_type || ReturnType == TypeManager.typed_reference_type)) {
4440 Error1599 (Location, ReturnType);
4444 if (ReturnType == TypeManager.void_type && ParameterTypes.Length == 0 &&
4445 Name == "Finalize" && !(this is Destructor)) {
4446 Report.Warning (465, 1, Location, "Introducing a 'Finalize' method can interfere with destructor invocation. Did you intend to declare a destructor?");
4449 if (base_method != null) {
4450 if (Parameters.Count == 1 && ParameterTypes [0] == TypeManager.object_type && Name == "Equals")
4451 Parent.PartialContainer.Mark_HasEquals ();
4452 else if (Parameters.Empty && Name == "GetHashCode")
4453 Parent.PartialContainer.Mark_HasGetHashCode ();
4457 // This is used to track the Entry Point,
4459 if (RootContext.NeedsEntryPoint && ((ModFlags & Modifiers.STATIC) != 0) &&
4461 (RootContext.MainClass == null ||
4462 RootContext.MainClass == Parent.TypeBuilder.FullName)){
4463 if (IsEntryPoint (ParameterInfo)) {
4465 if (RootContext.EntryPoint == null) {
4466 if (Parent.IsGeneric || MemberName.IsGeneric) {
4467 Report.Warning (402, 4, Location, "`{0}': an entry point cannot be generic or in a generic type",
4468 GetSignatureForError ());
4470 IMethodData md = TypeManager.GetMethod (MethodBuilder);
4471 md.SetMemberIsUsed ();
4473 RootContext.EntryPoint = MethodBuilder;
4474 RootContext.EntryPointLocation = Location;
4477 Error_DuplicateEntryPoint (RootContext.EntryPoint, RootContext.EntryPointLocation);
4478 Error_DuplicateEntryPoint (MethodBuilder, Location);
4481 Report.Warning (28, 4, Location, "`{0}' has the wrong signature to be an entry point",
4482 GetSignatureForError ());
4492 public override void Emit ()
4494 Report.Debug (64, "METHOD EMIT", this, MethodBuilder, Location, Block, MethodData);
4495 MethodData.Emit (Parent);
4502 public static void Error1599 (Location loc, Type t)
4504 Report.Error (1599, loc, "Method or delegate cannot return type `{0}'", TypeManager.CSharpName (t));
4507 protected override MethodInfo FindOutBaseMethod (ref Type base_ret_type)
4509 MethodInfo mi = (MethodInfo) Parent.PartialContainer.BaseCache.FindMemberToOverride (
4510 Parent.TypeBuilder, Name, ParameterTypes, GenericMethod, false);
4515 if (mi.IsSpecialName)
4518 base_ret_type = mi.ReturnType;
4522 protected override bool VerifyClsCompliance ()
4524 if (!base.VerifyClsCompliance ())
4527 if (ParameterInfo.Count > 0) {
4528 ArrayList al = (ArrayList)Parent.PartialContainer.MemberCache.Members [Name];
4530 MemberCache.VerifyClsParameterConflict (al, this, MethodBuilder);
4537 public abstract class ConstructorInitializer {
4538 ArrayList argument_list;
4539 protected ConstructorInfo base_constructor;
4542 public ConstructorInitializer (ArrayList argument_list, Location loc)
4544 this.argument_list = argument_list;
4548 public ArrayList Arguments {
4550 return argument_list;
4554 public bool Resolve (ConstructorBuilder caller_builder, Block block, EmitContext ec)
4556 Expression base_constructor_group;
4560 ec.CurrentBlock = block;
4562 if (argument_list != null){
4563 foreach (Argument a in argument_list){
4564 if (!a.Resolve (ec, loc))
4568 ec.CurrentBlock = null;
4570 if (this is ConstructorBaseInitializer) {
4571 if (ec.ContainerType.BaseType == null)
4574 t = ec.ContainerType.BaseType;
4575 if (ec.ContainerType.IsValueType) {
4576 Report.Error (522, loc,
4577 "`{0}': Struct constructors cannot call base constructors", TypeManager.CSharpSignature (caller_builder));
4582 // It is legal to have "this" initializers that take no arguments
4583 // in structs, they are just no-ops.
4585 // struct D { public D (int a) : this () {}
4587 if (ec.ContainerType.IsValueType && argument_list == null)
4590 t = ec.ContainerType;
4593 base_constructor_group = Expression.MemberLookup (
4594 ec.ContainerType, t, ".ctor", MemberTypes.Constructor,
4595 BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly,
4598 if (base_constructor_group == null){
4600 base_constructor_group = Expression.MemberLookup (
4601 t, null, t, ".ctor", MemberTypes.Constructor,
4602 BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.DeclaredOnly,
4606 int errors = Report.Errors;
4607 if (base_constructor_group != null)
4608 base_constructor = (ConstructorInfo) Invocation.OverloadResolve (
4609 ec, (MethodGroupExpr) base_constructor_group, argument_list,
4612 if (base_constructor == null) {
4613 if (errors == Report.Errors)
4614 Invocation.Error_WrongNumArguments (loc, TypeManager.CSharpSignature (caller_builder),
4615 argument_list == null ? 0 : argument_list.Count);
4620 Report.SymbolRelatedToPreviousError (base_constructor);
4621 Expression.ErrorIsInaccesible (loc, TypeManager.CSharpSignature (base_constructor));
4622 base_constructor = null;
4626 if (base_constructor == caller_builder){
4627 Report.Error (516, loc, "Constructor `{0}' cannot call itself", TypeManager.CSharpSignature (caller_builder));
4634 public virtual void Emit (EmitContext ec)
4636 if (base_constructor != null){
4637 ec.Mark (loc, false);
4639 Invocation.EmitCall (ec, true, true, null, base_constructor, argument_list, loc);
4641 Invocation.EmitCall (ec, true, false, ec.GetThis (loc), base_constructor, argument_list, loc);
4646 public class ConstructorBaseInitializer : ConstructorInitializer {
4647 public ConstructorBaseInitializer (ArrayList argument_list, Location l) :
4648 base (argument_list, l)
4653 class GeneratedBaseInitializer: ConstructorBaseInitializer {
4654 public GeneratedBaseInitializer (Location loc):
4660 public class ConstructorThisInitializer : ConstructorInitializer {
4661 public ConstructorThisInitializer (ArrayList argument_list, Location l) :
4662 base (argument_list, l)
4667 public class Constructor : MethodCore, IMethodData, IAnonymousHost {
4668 public ConstructorBuilder ConstructorBuilder;
4669 public ConstructorInitializer Initializer;
4670 ListDictionary declarative_security;
4671 ArrayList anonymous_methods;
4674 // Modifiers allowed for a constructor.
4676 public const int AllowedModifiers =
4678 Modifiers.PROTECTED |
4679 Modifiers.INTERNAL |
4685 static string[] attribute_targets = new string [] { "method" };
4687 public Iterator Iterator {
4688 get { return null; }
4691 bool has_compliant_args = false;
4693 // The spec claims that static is not permitted, but
4694 // my very own code has static constructors.
4696 public Constructor (DeclSpace parent, string name, int mod, Parameters args,
4697 ConstructorInitializer init, Location loc)
4698 : base (parent, null, null, mod, AllowedModifiers, false,
4699 new MemberName (name, loc), null, args)
4704 public bool HasCompliantArgs {
4705 get { return has_compliant_args; }
4708 public override AttributeTargets AttributeTargets {
4709 get { return AttributeTargets.Constructor; }
4714 // Returns true if this is a default constructor
4716 public bool IsDefault ()
4718 if ((ModFlags & Modifiers.STATIC) != 0)
4719 return Parameters.Empty;
4721 return Parameters.Empty &&
4722 (Initializer is ConstructorBaseInitializer) &&
4723 (Initializer.Arguments == null);
4726 public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
4728 if (a.Type.IsSubclassOf (TypeManager.security_attr_type) && a.CheckSecurityActionValidity (false)) {
4729 if (declarative_security == null) {
4730 declarative_security = new ListDictionary ();
4732 a.ExtractSecurityPermissionSet (declarative_security);
4736 if (a.Type == TypeManager.methodimpl_attr_type &&
4737 (a.GetMethodImplOptions () & MethodImplOptions.InternalCall) != 0) {
4738 ConstructorBuilder.SetImplementationFlags (MethodImplAttributes.InternalCall | MethodImplAttributes.Runtime);
4741 ConstructorBuilder.SetCustomAttribute (cb);
4744 public void AddAnonymousMethod (AnonymousMethodExpression anonymous)
4746 if (anonymous_methods == null)
4747 anonymous_methods = new ArrayList ();
4748 anonymous_methods.Add (anonymous);
4751 public bool ResolveMembers ()
4753 if (anonymous_methods != null) {
4754 foreach (AnonymousMethodExpression ame in anonymous_methods) {
4755 if (!ame.CreateAnonymousHelpers ())
4763 protected override bool CheckForDuplications ()
4765 ArrayList ar = Parent.PartialContainer.InstanceConstructors;
4767 int arLen = ar.Count;
4769 for (int i = 0; i < arLen; i++) {
4770 Constructor m = (Constructor) ar [i];
4771 if (IsDuplicateImplementation (m))
4778 protected override bool CheckBase ()
4780 if ((ModFlags & Modifiers.STATIC) != 0) {
4781 if (!Parameters.Empty) {
4782 Report.Error (132, Location, "`{0}': The static constructor must be parameterless",
4783 GetSignatureForError ());
4787 // the rest can be ignored
4791 // Check whether arguments were correct.
4792 if (!DoDefineParameters ())
4795 if (!CheckForDuplications ())
4798 if (Parent.PartialContainer.Kind == Kind.Struct) {
4799 if (ParameterTypes.Length == 0) {
4800 Report.Error (568, Location,
4801 "Structs cannot contain explicit parameterless constructors");
4805 if ((ModFlags & Modifiers.PROTECTED) != 0) {
4806 Report.Error (666, Location, "`{0}': new protected member declared in struct", GetSignatureForError ());
4811 if ((RootContext.WarningLevel >= 4) && ((Parent.ModFlags & Modifiers.SEALED) != 0 && (ModFlags & Modifiers.PROTECTED) != 0)) {
4812 Report.Warning (628, 4, Location, "`{0}': new protected member declared in sealed class", GetSignatureForError ());
4819 // Creates the ConstructorBuilder
4821 public override bool Define ()
4823 if (ConstructorBuilder != null)
4826 MethodAttributes ca = (MethodAttributes.RTSpecialName |
4827 MethodAttributes.SpecialName);
4829 if ((ModFlags & Modifiers.STATIC) != 0) {
4830 ca |= MethodAttributes.Static | MethodAttributes.Private;
4832 ca |= MethodAttributes.HideBySig;
4834 if ((ModFlags & Modifiers.PUBLIC) != 0)
4835 ca |= MethodAttributes.Public;
4836 else if ((ModFlags & Modifiers.PROTECTED) != 0){
4837 if ((ModFlags & Modifiers.INTERNAL) != 0)
4838 ca |= MethodAttributes.FamORAssem;
4840 ca |= MethodAttributes.Family;
4841 } else if ((ModFlags & Modifiers.INTERNAL) != 0)
4842 ca |= MethodAttributes.Assembly;
4844 ca |= MethodAttributes.Private;
4847 if (!CheckAbstractAndExtern (block != null))
4850 // Check if arguments were correct.
4854 ConstructorBuilder = Parent.TypeBuilder.DefineConstructor (
4855 ca, CallingConventions,
4858 if ((ModFlags & Modifiers.UNSAFE) != 0)
4859 ConstructorBuilder.InitLocals = false;
4861 if (Parent.PartialContainer.IsComImport) {
4862 if (!IsDefault ()) {
4863 Report.Error (669, Location, "`{0}': A class with the ComImport attribute cannot have a user-defined constructor",
4864 Parent.GetSignatureForError ());
4867 ConstructorBuilder.SetImplementationFlags (MethodImplAttributes.InternalCall);
4870 TypeManager.AddMethod (ConstructorBuilder, this);
4878 public override void Emit ()
4880 if (OptAttributes != null)
4881 OptAttributes.Emit ();
4883 EmitContext ec = CreateEmitContext (null, null);
4885 if (block != null) {
4886 // If this is a non-static `struct' constructor and doesn't have any
4887 // initializer, it must initialize all of the struct's fields.
4888 if ((Parent.PartialContainer.Kind == Kind.Struct) &&
4889 ((ModFlags & Modifiers.STATIC) == 0) && (Initializer == null))
4890 block.AddThisVariable (Parent, Location);
4892 if (!block.ResolveMeta (ec, ParameterInfo))
4896 if ((ModFlags & Modifiers.STATIC) == 0){
4897 if (Parent.PartialContainer.Kind == Kind.Class && Initializer == null)
4898 Initializer = new GeneratedBaseInitializer (Location);
4902 // Spec mandates that Initializers will not have
4906 if ((Initializer != null) &&
4907 !Initializer.Resolve (ConstructorBuilder, block, ec))
4909 ec.IsStatic = false;
4912 Parameters.ApplyAttributes (ConstructorBuilder);
4914 SourceMethod source = SourceMethod.Create (
4915 Parent, ConstructorBuilder, block);
4918 // Classes can have base initializers and instance field initializers.
4920 if (Parent.PartialContainer.Kind == Kind.Class){
4921 if ((ModFlags & Modifiers.STATIC) == 0){
4924 // If we use a "this (...)" constructor initializer, then
4925 // do not emit field initializers, they are initialized in the other constructor
4927 if (!(Initializer != null && Initializer is ConstructorThisInitializer))
4928 Parent.PartialContainer.EmitFieldInitializers (ec);
4932 bool unreachable = false;
4933 if (block != null) {
4934 ec.ResolveTopBlock (null, block, ParameterInfo, this, out unreachable);
4935 ec.EmitMeta (block);
4937 if (block.ScopeInfo != null) {
4938 ExpressionStatement init = block.ScopeInfo.GetScopeInitializer (ec);
4939 init.EmitStatement (ec);
4943 if (Initializer != null) {
4944 Initializer.Emit (ec);
4947 if ((ModFlags & Modifiers.STATIC) != 0)
4948 Parent.PartialContainer.EmitFieldInitializers (ec);
4951 ec.EmitResolvedTopBlock (block, unreachable);
4954 source.CloseMethod ();
4958 if (declarative_security != null) {
4959 foreach (DictionaryEntry de in declarative_security) {
4960 ConstructorBuilder.AddDeclarativeSecurity ((SecurityAction)de.Key, (PermissionSet)de.Value);
4967 // Is never override
4968 protected override MethodInfo FindOutBaseMethod (ref Type base_ret_type)
4973 public override string GetSignatureForError()
4975 return base.GetSignatureForError () + Parameters.GetSignatureForError ();
4978 public override string[] ValidAttributeTargets {
4980 return attribute_targets;
4984 protected override bool VerifyClsCompliance ()
4986 if (!base.VerifyClsCompliance () || !IsExposedFromAssembly ()) {
4990 if (ParameterInfo.Count > 0) {
4991 ArrayList al = (ArrayList)Parent.MemberCache.Members [".ctor"];
4993 MemberCache.VerifyClsParameterConflict (al, this, ConstructorBuilder);
4995 if (Parent.TypeBuilder.IsSubclassOf (TypeManager.attribute_type)) {
4996 foreach (Type param in ParameterTypes) {
4997 if (param.IsArray) {
5003 has_compliant_args = true;
5007 #region IMethodData Members
5009 public System.Reflection.CallingConventions CallingConventions {
5011 CallingConventions cc = Parameters.CallingConvention;
5013 if (Parent.PartialContainer.Kind == Kind.Class)
5014 if ((ModFlags & Modifiers.STATIC) == 0)
5015 cc |= CallingConventions.HasThis;
5017 // FIXME: How is `ExplicitThis' used in C#?
5023 public new Location Location {
5025 return base.Location;
5029 public MemberName MethodName {
5035 public Type ReturnType {
5041 public EmitContext CreateEmitContext (DeclSpace ds, ILGenerator ig)
5043 ILGenerator ig_ = ConstructorBuilder.GetILGenerator ();
5044 return new EmitContext (this, Parent, Location, ig_, null, ModFlags, true);
5047 public bool IsExcluded()
5052 GenericMethod IMethodData.GenericMethod {
5062 /// Interface for MethodData class. Holds links to parent members to avoid member duplication.
5064 public interface IMethodData
5066 CallingConventions CallingConventions { get; }
5067 Location Location { get; }
5068 MemberName MethodName { get; }
5069 Type ReturnType { get; }
5070 GenericMethod GenericMethod { get; }
5071 Parameters ParameterInfo { get; }
5073 Iterator Iterator { get; }
5075 Attributes OptAttributes { get; }
5076 ToplevelBlock Block { get; set; }
5078 EmitContext CreateEmitContext (DeclSpace ds, ILGenerator ig);
5079 ObsoleteAttribute GetObsoleteAttribute ();
5080 string GetSignatureForError ();
5082 bool IsClsComplianceRequired ();
5083 void SetMemberIsUsed ();
5087 // Encapsulates most of the Method's state
5089 public class MethodData {
5091 readonly IMethodData method;
5093 public readonly GenericMethod GenericMethod;
5096 // Are we implementing an interface ?
5098 public MethodInfo implementing;
5103 protected InterfaceMemberBase member;
5104 protected int modifiers;
5105 protected MethodAttributes flags;
5106 protected Type declaring_type;
5107 protected MethodInfo parent_method;
5109 MethodBuilder builder = null;
5110 public MethodBuilder MethodBuilder {
5116 public Type DeclaringType {
5118 return declaring_type;
5122 public MethodData (InterfaceMemberBase member,
5123 int modifiers, MethodAttributes flags, IMethodData method)
5125 this.member = member;
5126 this.modifiers = modifiers;
5129 this.method = method;
5132 public MethodData (InterfaceMemberBase member,
5133 int modifiers, MethodAttributes flags,
5134 IMethodData method, MethodBuilder builder,
5135 GenericMethod generic, MethodInfo parent_method)
5136 : this (member, modifiers, flags, method)
5138 this.builder = builder;
5139 this.GenericMethod = generic;
5140 this.parent_method = parent_method;
5143 public bool Define (DeclSpace parent)
5145 string name = method.MethodName.Basename;
5146 string method_name = method.MethodName.FullName;
5148 TypeContainer container = parent.PartialContainer;
5150 PendingImplementation pending = container.PendingImplementations;
5151 if (pending != null){
5152 if (member is Indexer) // TODO: test it, but it should work without this IF
5153 implementing = pending.IsInterfaceIndexer (
5154 member.InterfaceType, method.ReturnType, method.ParameterInfo);
5156 implementing = pending.IsInterfaceMethod (
5157 member.InterfaceType, name, method.ReturnType, method.ParameterInfo);
5159 if (member.InterfaceType != null){
5160 if (implementing == null){
5161 if (member is PropertyBase) {
5162 Report.Error (550, method.Location, "`{0}' is an accessor not found in interface member `{1}{2}'",
5163 method.GetSignatureForError (), TypeManager.CSharpName (member.InterfaceType),
5164 member.GetSignatureForError ().Substring (member.GetSignatureForError ().LastIndexOf ('.')));
5167 Report.Error (539, method.Location,
5168 "`{0}.{1}' in explicit interface declaration is not a member of interface",
5169 TypeManager.CSharpName (member.InterfaceType), member.ShortName);
5173 if (implementing.IsSpecialName && !(method is AbstractPropertyEventMethod)) {
5174 Report.SymbolRelatedToPreviousError (implementing);
5175 Report.Error (683, method.Location, "`{0}' explicit method implementation cannot implement `{1}' because it is an accessor",
5176 member.GetSignatureForError (), TypeManager.CSharpSignature (implementing));
5180 method_name = TypeManager.GetFullName (member.InterfaceType) +
5183 if (implementing != null) {
5184 AbstractPropertyEventMethod prop_method = method as AbstractPropertyEventMethod;
5185 if (prop_method == null) {
5186 if (implementing.IsSpecialName) {
5187 Report.SymbolRelatedToPreviousError (implementing);
5188 Report.Error (470, method.Location, "Method `{0}' cannot implement interface accessor `{1}.{2}'",
5189 method.GetSignatureForError (), TypeManager.CSharpSignature (implementing),
5190 implementing.Name.StartsWith ("get_") ? "get" : "set");
5193 } else if (implementing.DeclaringType.IsInterface) {
5194 if (!implementing.IsSpecialName) {
5195 Report.SymbolRelatedToPreviousError (implementing);
5196 Report.Error (686, method.Location, "Accessor `{0}' cannot implement interface member `{1}' for type `{2}'. Use an explicit interface implementation",
5197 method.GetSignatureForError (), TypeManager.CSharpSignature (implementing), container.GetSignatureForError ());
5200 PropertyBase.PropertyMethod pm = prop_method as PropertyBase.PropertyMethod;
5201 if (pm != null && pm.HasCustomAccessModifier && (pm.ModFlags & Modifiers.PUBLIC) == 0) {
5202 Report.SymbolRelatedToPreviousError (implementing);
5203 Report.Error (277, method.Location, "Accessor `{0}' must be declared public to implement interface member `{1}'",
5204 method.GetSignatureForError (), TypeManager.CSharpSignature (implementing, true));
5213 // For implicit implementations, make sure we are public, for
5214 // explicit implementations, make sure we are private.
5216 if (implementing != null){
5218 // Setting null inside this block will trigger a more
5219 // verbose error reporting for missing interface implementations
5221 // The "candidate" function has been flagged already
5222 // but it wont get cleared
5224 if (member.IsExplicitImpl){
5225 if (method.ParameterInfo.HasParams && !TypeManager.GetParameterData (implementing).HasParams) {
5226 Report.SymbolRelatedToPreviousError (implementing);
5227 Report.Error (466, method.Location, "`{0}': the explicit interface implementation cannot introduce the params modifier",
5228 method.GetSignatureForError ());
5232 if (implementing.DeclaringType.IsInterface) {
5234 // If this is an interface method implementation,
5235 // check for public accessibility
5237 if ((flags & MethodAttributes.MemberAccessMask) != MethodAttributes.Public)
5238 implementing = null;
5239 } else if ((flags & MethodAttributes.MemberAccessMask) == MethodAttributes.Private){
5240 // We may never be private.
5241 implementing = null;
5242 } else if ((modifiers & Modifiers.OVERRIDE) == 0){
5244 // We may be protected if we're overriding something.
5246 implementing = null;
5251 // Static is not allowed
5253 if ((modifiers & Modifiers.STATIC) != 0){
5254 implementing = null;
5259 // If implementing is still valid, set flags
5261 if (implementing != null){
5263 // When implementing interface methods, set NewSlot
5264 // unless, we are overwriting a method.
5266 if (implementing.DeclaringType.IsInterface){
5267 if ((modifiers & Modifiers.OVERRIDE) == 0)
5268 flags |= MethodAttributes.NewSlot;
5271 MethodAttributes.Virtual |
5272 MethodAttributes.HideBySig;
5274 // Set Final unless we're virtual, abstract or already overriding a method.
5275 if ((modifiers & (Modifiers.VIRTUAL | Modifiers.ABSTRACT | Modifiers.OVERRIDE)) == 0)
5276 flags |= MethodAttributes.Final;
5279 EmitContext ec = method.CreateEmitContext (container, null);
5281 DefineMethodBuilder (container, method_name, method.ParameterInfo.Types);
5283 if (builder == null)
5286 if (container.CurrentType != null)
5287 declaring_type = container.CurrentType;
5289 declaring_type = container.TypeBuilder;
5291 if ((modifiers & Modifiers.UNSAFE) != 0)
5292 builder.InitLocals = false;
5294 if (implementing != null){
5296 // clear the pending implemntation flag
5298 if (member is Indexer) {
5299 pending.ImplementIndexer (
5300 member.InterfaceType, builder, method.ReturnType,
5301 method.ParameterInfo, member.IsExplicitImpl);
5303 pending.ImplementMethod (
5304 member.InterfaceType, name, method.ReturnType,
5305 method.ParameterInfo, member.IsExplicitImpl);
5307 if (member.IsExplicitImpl)
5308 container.TypeBuilder.DefineMethodOverride (
5309 builder, implementing);
5313 TypeManager.AddMethod (builder, method);
5315 if (GenericMethod != null) {
5316 bool is_override = member.IsExplicitImpl |
5317 ((modifiers & Modifiers.OVERRIDE) != 0);
5319 if (implementing != null)
5320 parent_method = implementing;
5322 if (!GenericMethod.DefineType (ec, builder, parent_method, is_override))
5331 /// Create the MethodBuilder for the method
5333 void DefineMethodBuilder (TypeContainer container, string method_name, Type[] ParameterTypes)
5335 if ((modifiers & Modifiers.EXTERN) != 0) {
5337 if (method.OptAttributes != null) {
5338 Attribute dllimport_attribute = method.OptAttributes.Search (TypeManager.dllimport_type);
5339 if (dllimport_attribute != null) {
5340 flags |= MethodAttributes.PinvokeImpl;
5341 builder = dllimport_attribute.DefinePInvokeMethod (
5342 container.TypeBuilder, method_name, flags,
5343 method.ReturnType, ParameterTypes);
5349 // for extern static method must be specified either DllImport attribute or MethodImplAttribute.
5350 // We are more strict than Microsoft and report CS0626 like error
5351 if (method.OptAttributes == null ||
5352 !method.OptAttributes.Contains (TypeManager.methodimpl_attr_type)) {
5353 Report.Error (626, method.Location,
5354 "`{0}' is marked as an external but has no DllImport attribute. Consider adding a DllImport attribute to specify the external implementation",
5355 member.GetSignatureForError ());
5360 if (builder == null) {
5361 builder = container.TypeBuilder.DefineMethod (
5362 method_name, flags, method.CallingConventions,
5363 method.ReturnType, ParameterTypes);
5367 #if GMCS_SOURCE && !MS_COMPATIBLE
5368 builder.SetGenericMethodSignature (
5369 flags, method.CallingConventions,
5370 method.ReturnType, ParameterTypes);
5377 public void Emit (DeclSpace parent)
5380 if ((flags & MethodAttributes.PinvokeImpl) == 0)
5381 ec = method.CreateEmitContext (parent, builder.GetILGenerator ());
5383 ec = method.CreateEmitContext (parent, null);
5385 method.ParameterInfo.ApplyAttributes (MethodBuilder);
5387 if (GenericMethod != null)
5388 GenericMethod.EmitAttributes ();
5390 ToplevelBlock block = method.Block;
5392 SourceMethod source = SourceMethod.Create (parent, MethodBuilder, method.Block);
5395 // Handle destructors specially
5397 // FIXME: This code generates buggy code
5399 if (member is Destructor)
5400 EmitDestructor (ec, block);
5402 ec.EmitTopBlock (method, block);
5405 source.CloseMethod ();
5408 void EmitDestructor (EmitContext ec, ToplevelBlock block)
5410 ILGenerator ig = ec.ig;
5412 Label finish = ig.DefineLabel ();
5414 block.SetDestructor ();
5416 ig.BeginExceptionBlock ();
5417 ec.ReturnLabel = finish;
5418 ec.HasReturnLabel = true;
5419 ec.EmitTopBlock (method, block);
5421 // ig.MarkLabel (finish);
5422 ig.BeginFinallyBlock ();
5424 if (ec.ContainerType.BaseType != null) {
5425 Expression member_lookup = Expression.MemberLookup (
5426 ec.ContainerType.BaseType, null, ec.ContainerType.BaseType,
5427 "Finalize", MemberTypes.Method, Expression.AllBindingFlags, method.Location);
5429 if (member_lookup != null){
5430 MethodGroupExpr base_destructor = ((MethodGroupExpr) member_lookup);
5432 ig.Emit (OpCodes.Ldarg_0);
5433 ig.Emit (OpCodes.Call, (MethodInfo) base_destructor.Methods [0]);
5437 ig.EndExceptionBlock ();
5438 //ig.MarkLabel (ec.ReturnLabel);
5439 ig.Emit (OpCodes.Ret);
5443 // TODO: Should derive from MethodCore
5444 public class Destructor : Method {
5446 static string[] attribute_targets = new string [] { "method" };
5448 public Destructor (DeclSpace parent, Expression return_type, int mod,
5449 string name, Parameters parameters, Attributes attrs,
5451 : base (parent, null, return_type, mod, false, new MemberName (name, l),
5455 public override void ApplyAttributeBuilder(Attribute a, CustomAttributeBuilder cb)
5457 if (a.Type == TypeManager.conditional_attribute_type) {
5458 Error_ConditionalAttributeIsNotValid ();
5462 base.ApplyAttributeBuilder (a, cb);
5465 public override string GetSignatureForError ()
5467 return Parent.GetSignatureForError () + ".~" + Parent.MemberName.Name + "()";
5470 public override string[] ValidAttributeTargets {
5472 return attribute_targets;
5477 abstract public class MemberBase : MemberCore {
5478 public Expression Type;
5479 public readonly DeclSpace ds;
5480 public readonly GenericMethod GenericMethod;
5483 // The type of this property / indexer / event
5485 protected Type member_type;
5486 public Type MemberType {
5488 if (member_type == null && Type != null) {
5489 IResolveContext rc = GenericMethod == null ? this : (IResolveContext)ds;
5490 Type = Type.ResolveAsTypeTerminal (rc, false);
5492 member_type = Type.Type;
5500 // The constructor is only exposed to our children
5502 protected MemberBase (DeclSpace parent, GenericMethod generic,
5503 Expression type, int mod, int allowed_mod, int def_mod,
5504 MemberName name, Attributes attrs)
5505 : base (parent, name, attrs)
5507 this.ds = generic != null ? generic : (DeclSpace) parent;
5509 ModFlags = Modifiers.Check (allowed_mod, mod, def_mod, Location);
5510 GenericMethod = generic;
5511 if (GenericMethod != null)
5512 GenericMethod.ModFlags = ModFlags;
5515 protected virtual bool CheckBase ()
5517 if ((ModFlags & Modifiers.PROTECTED) != 0 && Parent.PartialContainer.Kind == Kind.Struct) {
5518 Report.Error (666, Location, "`{0}': new protected member declared in struct", GetSignatureForError ());
5522 if ((RootContext.WarningLevel >= 4) &&
5523 ((Parent.ModFlags & Modifiers.SEALED) != 0) &&
5524 ((ModFlags & Modifiers.PROTECTED) != 0) &&
5525 ((ModFlags & Modifiers.OVERRIDE) == 0) && (Name != "Finalize")) {
5526 Report.Warning (628, 4, Location, "`{0}': new protected member declared in sealed class", GetSignatureForError ());
5531 protected virtual bool DoDefine ()
5533 if (MemberType == null)
5536 if ((Parent.ModFlags & Modifiers.SEALED) != 0 &&
5537 (ModFlags & (Modifiers.VIRTUAL|Modifiers.ABSTRACT)) != 0) {
5538 Report.Error (549, Location, "New virtual member `{0}' is declared in a sealed class `{1}'",
5539 GetSignatureForError (), Parent.GetSignatureForError ());
5543 // verify accessibility
5544 if (!Parent.AsAccessible (MemberType, ModFlags)) {
5545 Report.SymbolRelatedToPreviousError (MemberType);
5546 if (this is Property)
5547 Report.Error (53, Location,
5548 "Inconsistent accessibility: property type `" +
5549 TypeManager.CSharpName (MemberType) + "' is less " +
5550 "accessible than property `" + GetSignatureForError () + "'");
5551 else if (this is Indexer)
5552 Report.Error (54, Location,
5553 "Inconsistent accessibility: indexer return type `" +
5554 TypeManager.CSharpName (MemberType) + "' is less " +
5555 "accessible than indexer `" + GetSignatureForError () + "'");
5556 else if (this is MethodCore) {
5557 if (this is Operator)
5558 Report.Error (56, Location,
5559 "Inconsistent accessibility: return type `" +
5560 TypeManager.CSharpName (MemberType) + "' is less " +
5561 "accessible than operator `" + GetSignatureForError () + "'");
5563 Report.Error (50, Location,
5564 "Inconsistent accessibility: return type `" +
5565 TypeManager.CSharpName (MemberType) + "' is less " +
5566 "accessible than method `" + GetSignatureForError () + "'");
5568 Report.Error (52, Location,
5569 "Inconsistent accessibility: field type `" +
5570 TypeManager.CSharpName (MemberType) + "' is less " +
5571 "accessible than field `" + GetSignatureForError () + "'");
5579 protected bool IsTypePermitted ()
5581 if (MemberType == TypeManager.arg_iterator_type || MemberType == TypeManager.typed_reference_type) {
5582 Report.Error (610, Location, "Field or property cannot be of type `{0}'", TypeManager.CSharpName (MemberType));
5590 // Abstract class for all fields
5592 abstract public class FieldBase : MemberBase {
5593 public FieldBuilder FieldBuilder;
5594 public Status status;
5595 protected Expression initializer;
5598 public enum Status : byte {
5599 HAS_OFFSET = 4 // Used by FieldMember.
5602 static readonly string[] attribute_targets = new string [] { "field" };
5604 protected FieldBase (DeclSpace parent, Expression type, int mod,
5605 int allowed_mod, MemberName name, Attributes attrs)
5606 : base (parent, null, type, mod, allowed_mod | Modifiers.ABSTRACT, Modifiers.PRIVATE,
5609 if ((mod & Modifiers.ABSTRACT) != 0)
5610 Report.Error (681, Location, "The modifier 'abstract' is not valid on fields. Try using a property instead");
5613 public override AttributeTargets AttributeTargets {
5615 return AttributeTargets.Field;
5619 public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
5621 if (a.Type == TypeManager.field_offset_attribute_type) {
5622 status |= Status.HAS_OFFSET;
5624 if (!Parent.PartialContainer.HasExplicitLayout) {
5625 Report.Error (636, Location, "The FieldOffset attribute can only be placed on members of types marked with the StructLayout(LayoutKind.Explicit)");
5629 if ((ModFlags & Modifiers.STATIC) != 0 || this is Const) {
5630 Report.Error (637, Location, "The FieldOffset attribute is not allowed on static or const fields");
5636 if (a.Type == TypeManager.fixed_buffer_attr_type) {
5637 Report.Error (1716, Location, "Do not use 'System.Runtime.CompilerServices.FixedBuffer' attribute. Use the 'fixed' field modifier instead");
5642 if (a.Type == TypeManager.marshal_as_attr_type) {
5643 UnmanagedMarshal marshal = a.GetMarshal (this);
5644 if (marshal != null) {
5645 FieldBuilder.SetMarshal (marshal);
5650 if (a.Type.IsSubclassOf (TypeManager.security_attr_type)) {
5651 a.Error_InvalidSecurityParent ();
5655 FieldBuilder.SetCustomAttribute (cb);
5658 protected override bool CheckBase ()
5660 if (!base.CheckBase ())
5663 MemberInfo conflict_symbol = Parent.PartialContainer.FindBaseMemberWithSameName (Name, false);
5664 if (conflict_symbol == null) {
5665 if ((ModFlags & Modifiers.NEW) != 0) {
5666 Report.Warning (109, 4, Location, "The member `{0}' does not hide an inherited member. The new keyword is not required", GetSignatureForError ());
5671 if ((ModFlags & (Modifiers.NEW | Modifiers.OVERRIDE)) == 0) {
5672 Report.SymbolRelatedToPreviousError (conflict_symbol);
5673 Report.Warning (108, 2, Location, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
5674 GetSignatureForError (), TypeManager.GetFullNameSignature (conflict_symbol));
5680 public override bool Define()
5682 if (MemberType == null || Type == null)
5685 if (MemberType == TypeManager.void_type) {
5686 // TODO: wrong location
5687 Expression.Error_VoidInvalidInTheContext (Location);
5691 if (MemberType.IsSealed && MemberType.IsAbstract) {
5692 Error_VariableOfStaticClass (Location, GetSignatureForError (), MemberType);
5699 if (!Parent.AsAccessible (MemberType, ModFlags)) {
5700 Report.Error (52, Location,
5701 "Inconsistent accessibility: field type `" +
5702 TypeManager.CSharpName (MemberType) + "' is less " +
5703 "accessible than field `" + GetSignatureForError () + "'");
5707 if (!IsTypePermitted ())
5714 // Represents header string for documentation comment.
5716 public override string DocCommentHeader {
5717 get { return "F:"; }
5720 public override void Emit ()
5722 if (OptAttributes != null) {
5723 OptAttributes.Emit ();
5726 if (((status & Status.HAS_OFFSET) == 0) && (ModFlags & Modifiers.STATIC) == 0 && Parent.PartialContainer.HasExplicitLayout) {
5727 Report.Error (625, Location, "`{0}': Instance field types marked with StructLayout(LayoutKind.Explicit) must have a FieldOffset attribute.", GetSignatureForError ());
5733 public static void Error_VariableOfStaticClass (Location loc, string variableName, Type staticClass)
5735 Report.SymbolRelatedToPreviousError (staticClass);
5736 Report.Error (723, loc, "`{0}': cannot declare variables of static types",
5740 public Expression Initializer {
5742 if (value != null) {
5743 this.initializer = value;
5748 protected virtual bool IsFieldClsCompliant {
5750 if (FieldBuilder == null)
5753 return AttributeTester.IsClsCompliant (FieldBuilder.FieldType);
5757 public override string[] ValidAttributeTargets
5760 return attribute_targets;
5764 protected override bool VerifyClsCompliance ()
5766 if (!base.VerifyClsCompliance ())
5769 if (!IsFieldClsCompliant) {
5770 Report.Error (3003, Location, "Type of `{0}' is not CLS-compliant", GetSignatureForError ());
5775 public void SetAssigned ()
5777 caching_flags |= Flags.IsAssigned;
5781 interface IFixedBuffer
5783 FieldInfo Element { get; }
5784 Type ElementType { get; }
5787 public class FixedFieldExternal: IFixedBuffer
5789 FieldInfo element_field;
5791 public FixedFieldExternal (FieldInfo fi)
5793 element_field = fi.FieldType.GetField (FixedField.FixedElementName);
5796 #region IFixedField Members
5798 public FieldInfo Element {
5800 return element_field;
5804 public Type ElementType {
5806 return element_field.FieldType;
5814 /// Fixed buffer implementation
5816 public class FixedField : FieldBase, IFixedBuffer
5818 public const string FixedElementName = "FixedElementField";
5819 static int GlobalCounter = 0;
5820 static object[] ctor_args = new object[] { (short)LayoutKind.Sequential };
5821 static FieldInfo[] fi;
5823 TypeBuilder fixed_buffer_type;
5824 FieldBuilder element;
5825 Expression size_expr;
5828 const int AllowedModifiers =
5831 Modifiers.PROTECTED |
5832 Modifiers.INTERNAL |
5835 public FixedField (DeclSpace parent, Expression type, int mod, string name,
5836 Expression size_expr, Attributes attrs, Location loc):
5837 base (parent, type, mod, AllowedModifiers, new MemberName (name, loc), attrs)
5839 if (RootContext.Version == LanguageVersion.ISO_1)
5840 Report.FeatureIsNotISO1 (loc, "fixed size buffers");
5842 this.size_expr = size_expr;
5845 public override bool Define()
5848 if ((ModFlags & (Modifiers.PUBLIC | Modifiers.PROTECTED)) != 0)
5849 Report.Warning (-23, 1, Location, "Only private or internal fixed sized buffers are supported by .NET 1.x");
5852 if (Parent.PartialContainer.Kind != Kind.Struct) {
5853 Report.Error (1642, Location, "`{0}': Fixed size buffer fields may only be members of structs",
5854 GetSignatureForError ());
5858 if (!base.Define ())
5861 if (!TypeManager.IsPrimitiveType (MemberType)) {
5862 Report.Error (1663, Location, "`{0}': Fixed size buffers type must be one of the following: bool, byte, short, int, long, char, sbyte, ushort, uint, ulong, float or double",
5863 GetSignatureForError ());
5867 EmitContext ec = new EmitContext (this, Parent, Location, null, null, ModFlags);
5868 Constant c = size_expr.ResolveAsConstant (ec, this);
5872 IntConstant buffer_size_const = c.ImplicitConversionRequired (TypeManager.int32_type, Location) as IntConstant;
5873 if (buffer_size_const == null)
5876 buffer_size = buffer_size_const.Value;
5878 if (buffer_size <= 0) {
5879 Report.Error (1665, Location, "`{0}': Fixed size buffers must have a length greater than zero", GetSignatureForError ());
5883 int type_size = Expression.GetTypeSize (MemberType);
5885 if (buffer_size > int.MaxValue / type_size) {
5886 Report.Error (1664, Location, "Fixed size buffer `{0}' of length `{1}' and type `{2}' exceeded 2^31 limit",
5887 GetSignatureForError (), buffer_size.ToString (), TypeManager.CSharpName (MemberType));
5891 buffer_size *= type_size;
5894 string name = String.Format ("<{0}>__FixedBuffer{1}", Name, GlobalCounter++);
5896 fixed_buffer_type = Parent.TypeBuilder.DefineNestedType (name,
5897 TypeAttributes.NestedPublic | TypeAttributes.Sealed | TypeAttributes.BeforeFieldInit, TypeManager.value_type);
5898 element = fixed_buffer_type.DefineField (FixedElementName, MemberType, FieldAttributes.Public);
5899 RootContext.RegisterCompilerGeneratedType (fixed_buffer_type);
5901 FieldBuilder = Parent.TypeBuilder.DefineField (Name, fixed_buffer_type, Modifiers.FieldAttr (ModFlags));
5902 TypeManager.RegisterFieldBase (FieldBuilder, this);
5907 public override void Emit()
5910 fi = new FieldInfo [] { TypeManager.struct_layout_attribute_type.GetField ("Size") };
5912 object[] fi_val = new object[1];
5913 fi_val [0] = buffer_size;
5915 CustomAttributeBuilder cab = new CustomAttributeBuilder (TypeManager.struct_layout_attribute_ctor,
5916 ctor_args, fi, fi_val);
5917 fixed_buffer_type.SetCustomAttribute (cab);
5920 cab = new CustomAttributeBuilder (TypeManager.fixed_buffer_attr_ctor, new object[] { MemberType, buffer_size } );
5921 FieldBuilder.SetCustomAttribute (cab);
5926 protected override bool IsFieldClsCompliant {
5932 #region IFixedField Members
5934 public FieldInfo Element {
5940 public Type ElementType {
5950 // The Field class is used to represents class/struct fields during parsing.
5952 public class Field : FieldBase {
5954 // Modifiers allowed in a class declaration
5956 const int AllowedModifiers =
5959 Modifiers.PROTECTED |
5960 Modifiers.INTERNAL |
5963 Modifiers.VOLATILE |
5967 public Field (DeclSpace parent, Expression type, int mod, string name,
5968 Attributes attrs, Location loc)
5969 : base (parent, type, mod, AllowedModifiers, new MemberName (name, loc),
5974 public override bool Define ()
5976 if (!base.Define ())
5979 if (RootContext.WarningLevel > 1){
5980 Type ptype = Parent.TypeBuilder.BaseType;
5982 // ptype is only null for System.Object while compiling corlib.
5984 TypeContainer.FindMembers (
5985 ptype, MemberTypes.Method,
5986 BindingFlags.Public |
5987 BindingFlags.Static | BindingFlags.Instance,
5988 System.Type.FilterName, Name);
5992 if ((ModFlags & Modifiers.VOLATILE) != 0){
5993 if (!MemberType.IsClass){
5994 Type vt = MemberType;
5996 if (TypeManager.IsEnumType (vt))
5997 vt = TypeManager.EnumToUnderlying (MemberType);
5999 if (!((vt == TypeManager.bool_type) ||
6000 (vt == TypeManager.sbyte_type) ||
6001 (vt == TypeManager.byte_type) ||
6002 (vt == TypeManager.short_type) ||
6003 (vt == TypeManager.ushort_type) ||
6004 (vt == TypeManager.int32_type) ||
6005 (vt == TypeManager.uint32_type) ||
6006 (vt == TypeManager.char_type) ||
6007 (vt == TypeManager.float_type) ||
6008 (!vt.IsValueType))){
6009 Report.Error (677, Location, "`{0}': A volatile field cannot be of the type `{1}'",
6010 GetSignatureForError (), TypeManager.CSharpName (vt));
6015 if ((ModFlags & Modifiers.READONLY) != 0){
6016 Report.Error (678, Location, "`{0}': A field cannot be both volatile and readonly",
6017 GetSignatureForError ());
6022 FieldAttributes fa = Modifiers.FieldAttr (ModFlags);
6024 if (Parent.PartialContainer.Kind == Kind.Struct &&
6025 ((fa & FieldAttributes.Static) == 0) &&
6026 MemberType == Parent.TypeBuilder &&
6027 !TypeManager.IsBuiltinType (MemberType)){
6028 Report.Error (523, Location, "Struct member `" + Parent.Name + "." + Name +
6029 "' causes a cycle in the structure layout");
6034 FieldBuilder = Parent.TypeBuilder.DefineField (
6035 Name, MemberType, Modifiers.FieldAttr (ModFlags));
6037 TypeManager.RegisterFieldBase (FieldBuilder, this);
6039 catch (ArgumentException) {
6040 Report.Warning (-24, 1, Location, "The Microsoft runtime is unable to use [void|void*] as a field type, try using the Mono runtime.");
6044 if (initializer != null)
6045 Parent.PartialContainer.RegisterFieldForInitialization (this,
6046 new FieldInitializer (FieldBuilder, initializer));
6051 protected override bool VerifyClsCompliance ()
6053 if (!base.VerifyClsCompliance ())
6056 if ((ModFlags & Modifiers.VOLATILE) != 0) {
6057 Report.Warning (3026, 1, Location, "CLS-compliant field `{0}' cannot be volatile", GetSignatureForError ());
6065 // `set' and `get' accessors are represented with an Accessor.
6067 public class Accessor : IAnonymousHost {
6069 // Null if the accessor is empty, or a Block if not
6071 public const int AllowedModifiers =
6073 Modifiers.PROTECTED |
6074 Modifiers.INTERNAL |
6077 public ToplevelBlock Block;
6078 public Attributes Attributes;
6079 public Location Location;
6080 public int ModFlags;
6082 public ArrayList AnonymousMethods;
6084 public Accessor (ToplevelBlock b, int mod, Attributes attrs, Location loc)
6089 ModFlags = Modifiers.Check (AllowedModifiers, mod, 0, loc);
6092 public void SetYields ()
6097 public void AddAnonymousMethod (AnonymousMethodExpression ame)
6099 if (AnonymousMethods == null)
6100 AnonymousMethods = new ArrayList ();
6101 AnonymousMethods.Add (ame);
6105 // Ooouh Martin, templates are missing here.
6106 // When it will be possible move here a lot of child code and template method type.
6107 public abstract class AbstractPropertyEventMethod : MemberCore, IMethodData {
6108 protected MethodData method_data;
6109 protected ToplevelBlock block;
6110 protected ListDictionary declarative_security;
6112 // The accessor are created event if they are not wanted.
6113 // But we need them because their names are reserved.
6114 // Field says whether accessor will be emited or not
6115 public readonly bool IsDummy;
6117 protected readonly string prefix;
6119 ReturnParameter return_attributes;
6121 public AbstractPropertyEventMethod (PropertyBasedMember member, string prefix)
6122 : base (member.Parent, SetupName (prefix, member, member.Location), null)
6124 this.prefix = prefix;
6128 public AbstractPropertyEventMethod (InterfaceMemberBase member, Accessor accessor,
6130 : base (member.Parent, SetupName (prefix, member, accessor.Location),
6131 accessor.Attributes)
6133 this.prefix = prefix;
6134 this.block = accessor.Block;
6137 static MemberName SetupName (string prefix, InterfaceMemberBase member, Location loc)
6139 return new MemberName (member.MemberName.Left, prefix + member.ShortName, loc);
6142 public void UpdateName (InterfaceMemberBase member)
6144 SetMemberName (SetupName (prefix, member, Location));
6147 #region IMethodData Members
6149 public abstract Iterator Iterator {
6153 public ToplevelBlock Block {
6163 public CallingConventions CallingConventions {
6165 return CallingConventions.Standard;
6169 public bool IsExcluded ()
6174 GenericMethod IMethodData.GenericMethod {
6180 public MemberName MethodName {
6186 public Type[] ParameterTypes {
6188 return ParameterInfo.Types;
6192 public abstract Parameters ParameterInfo { get ; }
6193 public abstract Type ReturnType { get; }
6194 public abstract EmitContext CreateEmitContext (DeclSpace ds, ILGenerator ig);
6198 public override void ApplyAttributeBuilder(Attribute a, CustomAttributeBuilder cb)
6200 if (a.Type == TypeManager.cls_compliant_attribute_type || a.Type == TypeManager.obsolete_attribute_type ||
6201 a.Type == TypeManager.conditional_attribute_type) {
6202 Report.Error (1667, a.Location,
6203 "Attribute `{0}' is not valid on property or event accessors. It is valid on `{1}' declarations only",
6204 TypeManager.CSharpName (a.Type), a.GetValidTargets ());
6208 if (a.Type.IsSubclassOf (TypeManager.security_attr_type) && a.CheckSecurityActionValidity (false)) {
6209 if (declarative_security == null)
6210 declarative_security = new ListDictionary ();
6211 a.ExtractSecurityPermissionSet (declarative_security);
6215 if (a.Target == AttributeTargets.Method) {
6216 method_data.MethodBuilder.SetCustomAttribute (cb);
6220 if (a.Target == AttributeTargets.ReturnValue) {
6221 if (return_attributes == null)
6222 return_attributes = new ReturnParameter (method_data.MethodBuilder, Location);
6224 return_attributes.ApplyAttributeBuilder (a, cb);
6228 ApplyToExtraTarget (a, cb);
6231 virtual protected void ApplyToExtraTarget (Attribute a, CustomAttributeBuilder cb)
6233 System.Diagnostics.Debug.Fail ("You forgot to define special attribute target handling");
6236 // It is not supported for the accessors
6237 public sealed override bool Define()
6239 throw new NotSupportedException ();
6242 public void Emit (DeclSpace parent)
6244 EmitMethod (parent);
6246 if (OptAttributes != null)
6247 OptAttributes.Emit ();
6249 if (declarative_security != null) {
6250 foreach (DictionaryEntry de in declarative_security) {
6251 method_data.MethodBuilder.AddDeclarativeSecurity ((SecurityAction)de.Key, (PermissionSet)de.Value);
6258 protected virtual void EmitMethod (DeclSpace parent)
6260 method_data.Emit (parent);
6263 public override bool IsClsComplianceRequired()
6268 public bool IsDuplicateImplementation (MethodCore method)
6270 if (!MemberName.Equals (method.MemberName))
6273 Type[] param_types = method.ParameterTypes;
6275 if (param_types.Length != ParameterTypes.Length)
6278 for (int i = 0; i < param_types.Length; i++)
6279 if (param_types [i] != ParameterTypes [i])
6282 Report.SymbolRelatedToPreviousError (method);
6283 Report.Error (111, Location, TypeContainer.Error111, method.GetSignatureForError ());
6287 public override bool IsUsed
6297 public new Location Location {
6299 return base.Location;
6304 // Represents header string for documentation comment.
6306 public override string DocCommentHeader {
6307 get { throw new InvalidOperationException ("Unexpected attempt to get doc comment from " + this.GetType () + "."); }
6313 // Properties and Indexers both generate PropertyBuilders, we use this to share
6314 // their common bits.
6316 abstract public class PropertyBase : PropertyBasedMember {
6318 public class GetMethod : PropertyMethod
6320 static string[] attribute_targets = new string [] { "method", "return" };
6322 public GetMethod (PropertyBase method):
6323 base (method, "get_")
6327 public GetMethod (PropertyBase method, Accessor accessor):
6328 base (method, accessor, "get_")
6332 public override MethodBuilder Define (DeclSpace parent)
6334 base.Define (parent);
6336 method_data = new MethodData (method, ModFlags, flags, this);
6338 if (!method_data.Define (parent))
6341 return method_data.MethodBuilder;
6344 public override Type ReturnType {
6346 return method.MemberType;
6350 public override Parameters ParameterInfo {
6352 return Parameters.EmptyReadOnlyParameters;
6356 public override string[] ValidAttributeTargets {
6358 return attribute_targets;
6363 public class SetMethod : PropertyMethod {
6365 static string[] attribute_targets = new string [] { "method", "param", "return" };
6366 ImplicitParameter param_attr;
6367 protected Parameters parameters;
6369 public SetMethod (PropertyBase method):
6370 base (method, "set_")
6374 public SetMethod (PropertyBase method, Accessor accessor):
6375 base (method, accessor, "set_")
6379 protected override void ApplyToExtraTarget(Attribute a, CustomAttributeBuilder cb)
6381 if (a.Target == AttributeTargets.Parameter) {
6382 if (param_attr == null)
6383 param_attr = new ImplicitParameter (method_data.MethodBuilder);
6385 param_attr.ApplyAttributeBuilder (a, cb);
6389 base.ApplyAttributeBuilder (a, cb);
6392 public override Parameters ParameterInfo {
6394 if (parameters == null)
6395 DefineParameters ();
6400 protected virtual void DefineParameters ()
6402 parameters = new Parameters (
6403 new Parameter[] { new Parameter (method.MemberType, "value", Parameter.Modifier.NONE, null, Location) },
6404 new Type[] { method.MemberType });
6407 public override MethodBuilder Define (DeclSpace parent)
6412 base.Define (parent);
6414 method_data = new MethodData (method, ModFlags, flags, this);
6416 if (!method_data.Define (parent))
6419 return method_data.MethodBuilder;
6422 public override Type ReturnType {
6424 return TypeManager.void_type;
6428 public override string[] ValidAttributeTargets {
6430 return attribute_targets;
6435 static string[] attribute_targets = new string [] { "property" };
6437 public abstract class PropertyMethod : AbstractPropertyEventMethod
6439 protected readonly PropertyBase method;
6440 protected MethodAttributes flags;
6442 ArrayList anonymous_methods;
6445 public PropertyMethod (PropertyBase method, string prefix)
6446 : base (method, prefix)
6448 this.method = method;
6451 public PropertyMethod (PropertyBase method, Accessor accessor,
6453 : base (method, accessor, prefix)
6455 this.method = method;
6456 this.ModFlags = accessor.ModFlags;
6457 yields = accessor.Yields;
6458 anonymous_methods = accessor.AnonymousMethods;
6460 if (accessor.ModFlags != 0 && RootContext.Version == LanguageVersion.ISO_1) {
6461 Report.FeatureIsNotISO1 (Location, "access modifiers on properties");
6465 public override Iterator Iterator {
6466 get { return iterator; }
6469 public override AttributeTargets AttributeTargets {
6471 return AttributeTargets.Method;
6475 public override bool IsClsComplianceRequired ()
6477 return method.IsClsComplianceRequired ();
6480 public bool ResolveMembers ()
6483 iterator = Iterator.CreateIterator (this, Parent, null, ModFlags);
6484 if (iterator == null)
6488 if (anonymous_methods != null) {
6489 foreach (AnonymousMethodExpression ame in anonymous_methods) {
6490 if (!ame.CreateAnonymousHelpers ())
6498 public virtual MethodBuilder Define (DeclSpace parent)
6500 if (!method.CheckAbstractAndExtern (block != null))
6503 TypeContainer container = parent.PartialContainer;
6506 // Check for custom access modifier
6508 if (ModFlags == 0) {
6509 ModFlags = method.ModFlags;
6510 flags = method.flags;
6512 if (container.Kind == Kind.Interface)
6513 Report.Error (275, Location, "`{0}': accessibility modifiers may not be used on accessors in an interface",
6514 GetSignatureForError ());
6516 if ((method.ModFlags & Modifiers.ABSTRACT) != 0 && (ModFlags & Modifiers.PRIVATE) != 0) {
6517 Report.Error (442, Location, "`{0}': abstract properties cannot have private accessors", GetSignatureForError ());
6520 CheckModifiers (ModFlags);
6521 ModFlags |= (method.ModFlags & (~Modifiers.Accessibility));
6522 ModFlags |= Modifiers.PROPERTY_CUSTOM;
6523 flags = Modifiers.MethodAttr (ModFlags);
6524 flags |= (method.flags & (~MethodAttributes.MemberAccessMask));
6530 public bool HasCustomAccessModifier
6533 return (ModFlags & Modifiers.PROPERTY_CUSTOM) != 0;
6537 public override EmitContext CreateEmitContext (DeclSpace ds, ILGenerator ig)
6539 return new EmitContext (method,
6540 ds, method.ds, method.Location, ig, ReturnType,
6541 method.ModFlags, false);
6544 public override ObsoleteAttribute GetObsoleteAttribute ()
6546 return method.GetObsoleteAttribute ();
6549 public override string GetSignatureForError()
6551 return method.GetSignatureForError () + '.' + prefix.Substring (0, 3);
6554 void CheckModifiers (int modflags)
6557 int mflags = method.ModFlags & Modifiers.Accessibility;
6559 if ((mflags & Modifiers.PUBLIC) != 0) {
6560 flags |= Modifiers.PROTECTED | Modifiers.INTERNAL | Modifiers.PRIVATE;
6562 else if ((mflags & Modifiers.PROTECTED) != 0) {
6563 if ((mflags & Modifiers.INTERNAL) != 0)
6564 flags |= Modifiers.PROTECTED | Modifiers.INTERNAL;
6566 flags |= Modifiers.PRIVATE;
6568 else if ((mflags & Modifiers.INTERNAL) != 0)
6569 flags |= Modifiers.PRIVATE;
6571 if ((mflags == modflags) || (modflags & (~flags)) != 0) {
6572 Report.Error (273, Location,
6573 "The accessibility modifier of the `{0}' accessor must be more restrictive than the modifier of the property or indexer `{1}'",
6574 GetSignatureForError (), method.GetSignatureForError ());
6578 public override bool MarkForDuplicationCheck ()
6580 caching_flags |= Flags.TestMethodDuplication;
6585 public PropertyMethod Get, Set;
6586 public PropertyBuilder PropertyBuilder;
6587 public MethodBuilder GetBuilder, SetBuilder;
6589 protected bool define_set_first = false;
6591 public PropertyBase (DeclSpace parent, Expression type, int mod_flags,
6592 int allowed_mod, bool is_iface, MemberName name,
6593 Attributes attrs, bool define_set_first)
6594 : base (parent, null, type, mod_flags, allowed_mod, is_iface, name, attrs)
6596 this.define_set_first = define_set_first;
6599 public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
6601 if (a.Type.IsSubclassOf (TypeManager.security_attr_type)) {
6602 a.Error_InvalidSecurityParent ();
6606 PropertyBuilder.SetCustomAttribute (cb);
6609 public override AttributeTargets AttributeTargets {
6611 return AttributeTargets.Property;
6615 public override bool Define ()
6620 if (!IsTypePermitted ())
6626 protected override bool DoDefine ()
6628 if (!base.DoDefine ())
6632 // Accessors modifiers check
6634 if (Get.ModFlags != 0 && Set.ModFlags != 0) {
6635 Report.Error (274, Location, "`{0}': Cannot specify accessibility modifiers for both accessors of the property or indexer",
6636 GetSignatureForError ());
6640 if ((Get.IsDummy || Set.IsDummy)
6641 && (Get.ModFlags != 0 || Set.ModFlags != 0) && (ModFlags & Modifiers.OVERRIDE) == 0) {
6642 Report.Error (276, Location,
6643 "`{0}': accessibility modifiers on accessors may only be used if the property or indexer has both a get and a set accessor",
6644 GetSignatureForError ());
6648 if (MemberType.IsAbstract && MemberType.IsSealed) {
6649 Report.Error (722, Location, Error722, TypeManager.CSharpName (MemberType));
6661 GetBuilder = Get.Define (Parent);
6662 return GetBuilder != null;
6665 bool DefineSet (bool define)
6667 if (!define || Set.IsDummy)
6670 SetBuilder = Set.Define (Parent);
6671 return SetBuilder != null;
6674 protected bool DefineAccessors ()
6676 return DefineSet (define_set_first) &&
6678 DefineSet (!define_set_first);
6681 protected abstract PropertyInfo ResolveBaseProperty ();
6683 // TODO: rename to Resolve......
6684 protected override MethodInfo FindOutBaseMethod (ref Type base_ret_type)
6686 PropertyInfo base_property = ResolveBaseProperty ();
6687 if (base_property == null)
6690 base_ret_type = base_property.PropertyType;
6691 MethodInfo get_accessor = base_property.GetGetMethod (true);
6692 MethodInfo set_accessor = base_property.GetSetMethod (true);
6693 MethodAttributes get_accessor_access, set_accessor_access;
6695 if ((ModFlags & Modifiers.OVERRIDE) != 0) {
6696 if (Get != null && !Get.IsDummy && get_accessor == null) {
6697 Report.SymbolRelatedToPreviousError (base_property);
6698 Report.Error (545, Location, "`{0}.get': cannot override because `{1}' does not have an overridable get accessor", GetSignatureForError (), TypeManager.GetFullNameSignature (base_property));
6701 if (Set != null && !Set.IsDummy && set_accessor == null) {
6702 Report.SymbolRelatedToPreviousError (base_property);
6703 Report.Error (546, Location, "`{0}.set': cannot override because `{1}' does not have an overridable set accessor", GetSignatureForError (), TypeManager.GetFullNameSignature (base_property));
6708 // Check base class accessors access
6711 // TODO: rewrite to reuse Get|Set.CheckAccessModifiers and share code there
6712 get_accessor_access = set_accessor_access = 0;
6713 if ((ModFlags & Modifiers.NEW) == 0) {
6714 if (get_accessor != null) {
6715 MethodAttributes get_flags = Modifiers.MethodAttr (Get.ModFlags != 0 ? Get.ModFlags : ModFlags);
6716 get_accessor_access = (get_accessor.Attributes & MethodAttributes.MemberAccessMask);
6718 if (!Get.IsDummy && !CheckAccessModifiers (get_flags & MethodAttributes.MemberAccessMask, get_accessor_access, get_accessor))
6719 Error_CannotChangeAccessModifiers (get_accessor, get_accessor_access, ".get");
6722 if (set_accessor != null) {
6723 MethodAttributes set_flags = Modifiers.MethodAttr (Set.ModFlags != 0 ? Set.ModFlags : ModFlags);
6724 set_accessor_access = (set_accessor.Attributes & MethodAttributes.MemberAccessMask);
6726 if (!Set.IsDummy && !CheckAccessModifiers (set_flags & MethodAttributes.MemberAccessMask, set_accessor_access, set_accessor))
6727 Error_CannotChangeAccessModifiers (set_accessor, set_accessor_access, ".set");
6732 // Get the less restrictive access
6734 return get_accessor_access > set_accessor_access ? get_accessor : set_accessor;
6737 public override void Emit ()
6740 // The PropertyBuilder can be null for explicit implementations, in that
6741 // case, we do not actually emit the ".property", so there is nowhere to
6742 // put the attribute
6744 if (PropertyBuilder != null && OptAttributes != null)
6745 OptAttributes.Emit ();
6757 /// Tests whether accessors are not in collision with some method (CS0111)
6759 public bool AreAccessorsDuplicateImplementation (MethodCore mc)
6761 return Get.IsDuplicateImplementation (mc) || Set.IsDuplicateImplementation (mc);
6764 public override bool IsUsed
6770 return Get.IsUsed | Set.IsUsed;
6774 protected override void SetMemberName (MemberName new_name)
6776 base.SetMemberName (new_name);
6778 Get.UpdateName (this);
6779 Set.UpdateName (this);
6782 public override string[] ValidAttributeTargets {
6784 return attribute_targets;
6789 // Represents header string for documentation comment.
6791 public override string DocCommentHeader {
6792 get { return "P:"; }
6796 public class Property : PropertyBase {
6797 const int AllowedModifiers =
6800 Modifiers.PROTECTED |
6801 Modifiers.INTERNAL |
6805 Modifiers.OVERRIDE |
6806 Modifiers.ABSTRACT |
6809 Modifiers.METHOD_YIELDS |
6812 const int AllowedInterfaceModifiers =
6815 public Property (DeclSpace parent, Expression type, int mod, bool is_iface,
6816 MemberName name, Attributes attrs, Accessor get_block,
6817 Accessor set_block, bool define_set_first)
6818 : base (parent, type, mod,
6819 is_iface ? AllowedInterfaceModifiers : AllowedModifiers,
6820 is_iface, name, attrs, define_set_first)
6822 if (get_block == null)
6823 Get = new GetMethod (this);
6825 Get = new GetMethod (this, get_block);
6827 if (set_block == null)
6828 Set = new SetMethod (this);
6830 Set = new SetMethod (this, set_block);
6833 public override bool Define ()
6835 if (!DoDefineBase ())
6838 if (!base.Define ())
6844 flags |= MethodAttributes.HideBySig | MethodAttributes.SpecialName;
6846 if (!DefineAccessors ())
6849 // FIXME - PropertyAttributes.HasDefault ?
6851 PropertyBuilder = Parent.TypeBuilder.DefineProperty (
6852 MemberName.ToString (), PropertyAttributes.None, MemberType, null);
6855 PropertyBuilder.SetGetMethod (GetBuilder);
6858 PropertyBuilder.SetSetMethod (SetBuilder);
6860 TypeManager.RegisterProperty (PropertyBuilder, this);
6864 protected override PropertyInfo ResolveBaseProperty ()
6866 return Parent.PartialContainer.BaseCache.FindMemberToOverride (
6867 Parent.TypeBuilder, Name, Parameters.EmptyReadOnlyParameters.Types, null, true) as PropertyInfo;
6872 /// Gigantic workaround for lameness in SRE follows :
6873 /// This class derives from EventInfo and attempts to basically
6874 /// wrap around the EventBuilder so that FindMembers can quickly
6875 /// return this in it search for members
6877 public class MyEventBuilder : EventInfo {
6880 // We use this to "point" to our Builder which is
6881 // not really a MemberInfo
6883 EventBuilder MyBuilder;
6886 // We "catch" and wrap these methods
6888 MethodInfo raise, remove, add;
6890 EventAttributes attributes;
6891 Type declaring_type, reflected_type, event_type;
6896 public MyEventBuilder (Event ev, TypeBuilder type_builder, string name, EventAttributes event_attr, Type event_type)
6898 MyBuilder = type_builder.DefineEvent (name, event_attr, event_type);
6900 // And now store the values in our own fields.
6902 declaring_type = type_builder;
6904 reflected_type = type_builder;
6906 attributes = event_attr;
6909 this.event_type = event_type;
6913 // Methods that you have to override. Note that you only need
6914 // to "implement" the variants that take the argument (those are
6915 // the "abstract" methods, the others (GetAddMethod()) are
6918 public override MethodInfo GetAddMethod (bool nonPublic)
6923 public override MethodInfo GetRemoveMethod (bool nonPublic)
6928 public override MethodInfo GetRaiseMethod (bool nonPublic)
6934 // These methods make "MyEventInfo" look like a Builder
6936 public void SetRaiseMethod (MethodBuilder raiseMethod)
6938 raise = raiseMethod;
6939 MyBuilder.SetRaiseMethod (raiseMethod);
6942 public void SetRemoveOnMethod (MethodBuilder removeMethod)
6944 remove = removeMethod;
6945 MyBuilder.SetRemoveOnMethod (removeMethod);
6948 public void SetAddOnMethod (MethodBuilder addMethod)
6951 MyBuilder.SetAddOnMethod (addMethod);
6954 public void SetCustomAttribute (CustomAttributeBuilder cb)
6956 MyBuilder.SetCustomAttribute (cb);
6959 public override object [] GetCustomAttributes (bool inherit)
6961 // FIXME : There's nothing which can be seemingly done here because
6962 // we have no way of getting at the custom attribute objects of the
6967 public override object [] GetCustomAttributes (Type t, bool inherit)
6969 // FIXME : Same here !
6973 public override bool IsDefined (Type t, bool b)
6978 public override EventAttributes Attributes {
6984 public override string Name {
6990 public override Type DeclaringType {
6992 return declaring_type;
6996 public override Type ReflectedType {
6998 return reflected_type;
7002 public Type EventType {
7008 public void SetUsed ()
7010 if (my_event != null) {
7011 // my_event.SetAssigned ();
7012 my_event.SetMemberIsUsed ();
7018 /// For case when event is declared like property (with add and remove accessors).
7020 public class EventProperty: Event {
7021 abstract class AEventPropertyAccessor : AEventAccessor
7023 public AEventPropertyAccessor (Event method, Accessor accessor, string prefix):
7024 base (method, accessor, prefix)
7028 public override MethodBuilder Define (DeclSpace ds)
7030 method.CheckAbstractAndExtern (block != null);
7031 return base.Define (ds);
7035 sealed class AddDelegateMethod: AEventPropertyAccessor
7037 public AddDelegateMethod (Event method, Accessor accessor):
7038 base (method, accessor, "add_")
7042 protected override MethodInfo DelegateMethodInfo {
7044 return TypeManager.delegate_combine_delegate_delegate;
7049 sealed class RemoveDelegateMethod: AEventPropertyAccessor
7051 public RemoveDelegateMethod (Event method, Accessor accessor):
7052 base (method, accessor, "remove_")
7056 protected override MethodInfo DelegateMethodInfo {
7058 return TypeManager.delegate_remove_delegate_delegate;
7064 static readonly string[] attribute_targets = new string [] { "event" }; // "property" target was disabled for 2.0 version
7066 public EventProperty (DeclSpace parent, Expression type, int mod_flags,
7067 bool is_iface, MemberName name,
7068 Attributes attrs, Accessor add, Accessor remove)
7069 : base (parent, type, mod_flags, is_iface, name, attrs)
7071 Add = new AddDelegateMethod (this, add);
7072 Remove = new RemoveDelegateMethod (this, remove);
7075 public override bool Define()
7077 if (!base.Define ())
7086 public override string[] ValidAttributeTargets {
7088 return attribute_targets;
7094 /// Event is declared like field.
7096 public class EventField : Event {
7097 abstract class EventFieldAccessor : AEventAccessor
7099 protected EventFieldAccessor (Event method, string prefix)
7100 : base (method, prefix)
7104 protected override void EmitMethod(DeclSpace parent)
7106 if ((method.ModFlags & (Modifiers.ABSTRACT | Modifiers.EXTERN)) != 0)
7109 ILGenerator ig = method_data.MethodBuilder.GetILGenerator ();
7111 // TODO: because we cannot use generics yet
7112 FieldInfo field_info = ((EventField)method).FieldBuilder;
7114 method_data.MethodBuilder.SetImplementationFlags (MethodImplAttributes.Synchronized);
7115 if ((method.ModFlags & Modifiers.STATIC) != 0) {
7116 ig.Emit (OpCodes.Ldsfld, field_info);
7117 ig.Emit (OpCodes.Ldarg_0);
7118 ig.Emit (OpCodes.Call, DelegateMethodInfo);
7119 ig.Emit (OpCodes.Castclass, method.MemberType);
7120 ig.Emit (OpCodes.Stsfld, field_info);
7122 ig.Emit (OpCodes.Ldarg_0);
7123 ig.Emit (OpCodes.Ldarg_0);
7124 ig.Emit (OpCodes.Ldfld, field_info);
7125 ig.Emit (OpCodes.Ldarg_1);
7126 ig.Emit (OpCodes.Call, DelegateMethodInfo);
7127 ig.Emit (OpCodes.Castclass, method.MemberType);
7128 ig.Emit (OpCodes.Stfld, field_info);
7130 ig.Emit (OpCodes.Ret);
7134 sealed class AddDelegateMethod: EventFieldAccessor
7136 public AddDelegateMethod (Event method):
7137 base (method, "add_")
7141 protected override MethodInfo DelegateMethodInfo {
7143 return TypeManager.delegate_combine_delegate_delegate;
7148 sealed class RemoveDelegateMethod: EventFieldAccessor
7150 public RemoveDelegateMethod (Event method):
7151 base (method, "remove_")
7155 protected override MethodInfo DelegateMethodInfo {
7157 return TypeManager.delegate_remove_delegate_delegate;
7163 static readonly string[] attribute_targets = new string [] { "event", "field", "method" };
7164 static readonly string[] attribute_targets_interface = new string[] { "event", "method" };
7166 public FieldBuilder FieldBuilder;
7167 public Expression Initializer;
7169 public EventField (DeclSpace parent, Expression type, int mod_flags,
7170 bool is_iface, MemberName name,
7172 : base (parent, type, mod_flags, is_iface, name, attrs)
7174 Add = new AddDelegateMethod (this);
7175 Remove = new RemoveDelegateMethod (this);
7178 public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
7180 if (a.Target == AttributeTargets.Field) {
7181 FieldBuilder.SetCustomAttribute (cb);
7185 if (a.Target == AttributeTargets.Method) {
7186 int errors = Report.Errors;
7187 Add.ApplyAttributeBuilder (a, cb);
7188 if (errors == Report.Errors)
7189 Remove.ApplyAttributeBuilder (a, cb);
7193 base.ApplyAttributeBuilder (a, cb);
7196 public override bool Define()
7198 if (!base.Define ())
7204 // FIXME: We are unable to detect whether generic event is used because
7205 // we are using FieldExpr instead of EventExpr for event access in that
7206 // case. When this issue will be fixed this hack can be removed.
7207 if (TypeManager.IsGenericType (MemberType))
7210 FieldBuilder = Parent.TypeBuilder.DefineField (
7212 FieldAttributes.Private | ((ModFlags & Modifiers.STATIC) != 0 ? FieldAttributes.Static : 0));
7213 TypeManager.RegisterEventField (EventBuilder, this);
7215 if (Initializer != null) {
7216 if (((ModFlags & Modifiers.ABSTRACT) != 0)) {
7217 Report.Error (74, Location, "`{0}': abstract event cannot have an initializer",
7218 GetSignatureForError ());
7222 Parent.PartialContainer.RegisterFieldForInitialization (this,
7223 new FieldInitializer (FieldBuilder, Initializer));
7229 public override string[] ValidAttributeTargets
7232 return IsInterface ? attribute_targets_interface : attribute_targets;
7237 public abstract class Event : PropertyBasedMember {
7238 public abstract class AEventAccessor : AbstractPropertyEventMethod
7240 protected readonly Event method;
7241 ImplicitParameter param_attr;
7243 static readonly string[] attribute_targets = new string [] { "method", "param", "return" };
7245 protected AEventAccessor (Event method, string prefix)
7246 : base (method, prefix)
7248 this.method = method;
7251 protected AEventAccessor (Event method, Accessor accessor, string prefix)
7252 : base (method, accessor, prefix)
7254 this.method = method;
7257 public override Iterator Iterator {
7258 get { return null; }
7261 protected override void ApplyToExtraTarget(Attribute a, CustomAttributeBuilder cb)
7263 if (a.Target == AttributeTargets.Parameter) {
7264 if (param_attr == null)
7265 param_attr = new ImplicitParameter (method_data.MethodBuilder);
7267 param_attr.ApplyAttributeBuilder (a, cb);
7271 base.ApplyAttributeBuilder (a, cb);
7274 public override AttributeTargets AttributeTargets {
7276 return AttributeTargets.Method;
7280 public override bool IsClsComplianceRequired ()
7282 return method.IsClsComplianceRequired ();
7285 public virtual MethodBuilder Define (DeclSpace parent)
7287 method_data = new MethodData (method, method.ModFlags,
7288 method.flags | MethodAttributes.HideBySig | MethodAttributes.SpecialName, this);
7290 if (!method_data.Define (parent))
7293 MethodBuilder mb = method_data.MethodBuilder;
7294 ParameterInfo.ApplyAttributes (mb);
7298 protected abstract MethodInfo DelegateMethodInfo { get; }
7300 public override Type ReturnType {
7302 return TypeManager.void_type;
7306 public override EmitContext CreateEmitContext (DeclSpace ds, ILGenerator ig)
7308 return new EmitContext (
7309 ds, method.Parent, Location, ig, ReturnType,
7310 method.ModFlags, false);
7313 public override ObsoleteAttribute GetObsoleteAttribute ()
7315 return method.GetObsoleteAttribute ();
7318 public override string[] ValidAttributeTargets {
7320 return attribute_targets;
7324 public override Parameters ParameterInfo {
7326 return method.parameters;
7332 const int AllowedModifiers =
7335 Modifiers.PROTECTED |
7336 Modifiers.INTERNAL |
7341 Modifiers.OVERRIDE |
7343 Modifiers.ABSTRACT |
7346 const int AllowedInterfaceModifiers =
7349 public AEventAccessor Add, Remove;
7350 public MyEventBuilder EventBuilder;
7351 public MethodBuilder AddBuilder, RemoveBuilder;
7353 Parameters parameters;
7355 protected Event (DeclSpace parent, Expression type, int mod_flags,
7356 bool is_iface, MemberName name, Attributes attrs)
7357 : base (parent, null, type, mod_flags,
7358 is_iface ? AllowedInterfaceModifiers : AllowedModifiers, is_iface,
7363 public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
7365 if (a.Type.IsSubclassOf (TypeManager.security_attr_type)) {
7366 a.Error_InvalidSecurityParent ();
7370 EventBuilder.SetCustomAttribute (cb);
7373 public bool AreAccessorsDuplicateImplementation (MethodCore mc)
7375 return Add.IsDuplicateImplementation (mc) || Remove.IsDuplicateImplementation (mc);
7378 public override AttributeTargets AttributeTargets {
7380 return AttributeTargets.Event;
7384 public override bool Define ()
7386 if (!DoDefineBase ())
7392 if (!TypeManager.IsDelegateType (MemberType)) {
7393 Report.Error (66, Location, "`{0}': event must be of a delegate type", GetSignatureForError ());
7397 parameters = new Parameters (
7398 new Parameter[] { new Parameter (MemberType, "value", Parameter.Modifier.NONE, null, Location) },
7399 new Type[] { MemberType } );
7405 // Now define the accessors
7408 AddBuilder = Add.Define (Parent);
7409 if (AddBuilder == null)
7412 RemoveBuilder = Remove.Define (Parent);
7413 if (RemoveBuilder == null)
7416 EventBuilder = new MyEventBuilder (this, Parent.TypeBuilder, Name, EventAttributes.None, MemberType);
7417 EventBuilder.SetAddOnMethod (AddBuilder);
7418 EventBuilder.SetRemoveOnMethod (RemoveBuilder);
7422 public override void Emit ()
7424 if (OptAttributes != null) {
7425 OptAttributes.Emit ();
7429 Remove.Emit (Parent);
7434 protected override MethodInfo FindOutBaseMethod (ref Type base_ret_type)
7436 MethodInfo mi = (MethodInfo) Parent.PartialContainer.BaseCache.FindBaseEvent (
7437 Parent.TypeBuilder, Name);
7442 ParameterData pd = TypeManager.GetParameterData (mi);
7443 base_ret_type = pd.ParameterType (0);
7448 // Represents header string for documentation comment.
7450 public override string DocCommentHeader {
7451 get { return "E:"; }
7456 public class Indexer : PropertyBase {
7458 class GetIndexerMethod : GetMethod
7460 public GetIndexerMethod (PropertyBase method):
7465 public GetIndexerMethod (PropertyBase method, Accessor accessor):
7466 base (method, accessor)
7470 public override Parameters ParameterInfo {
7472 return ((Indexer)method).parameters;
7477 class SetIndexerMethod: SetMethod
7479 public SetIndexerMethod (PropertyBase method):
7484 public SetIndexerMethod (PropertyBase method, Accessor accessor):
7485 base (method, accessor)
7489 protected override void DefineParameters ()
7491 parameters = Parameters.MergeGenerated (((Indexer)method).parameters,
7492 new Parameter (method.MemberType, "value", Parameter.Modifier.NONE, null, method.Location));
7496 const int AllowedModifiers =
7499 Modifiers.PROTECTED |
7500 Modifiers.INTERNAL |
7504 Modifiers.OVERRIDE |
7509 const int AllowedInterfaceModifiers =
7512 public readonly Parameters parameters;
7514 public Indexer (DeclSpace parent, Expression type, MemberName name, int mod,
7515 bool is_iface, Parameters parameters, Attributes attrs,
7516 Accessor get_block, Accessor set_block, bool define_set_first)
7517 : base (parent, type, mod,
7518 is_iface ? AllowedInterfaceModifiers : AllowedModifiers,
7519 is_iface, name, attrs, define_set_first)
7521 this.parameters = parameters;
7523 if (get_block == null)
7524 Get = new GetIndexerMethod (this);
7526 Get = new GetIndexerMethod (this, get_block);
7528 if (set_block == null)
7529 Set = new SetIndexerMethod (this);
7531 Set = new SetIndexerMethod (this, set_block);
7534 protected override bool CheckForDuplications ()
7536 ArrayList ar = Parent.PartialContainer.Indexers;
7538 int arLen = ar.Count;
7540 for (int i = 0; i < arLen; i++) {
7541 Indexer m = (Indexer) ar [i];
7542 if (IsDuplicateImplementation (m))
7550 bool IsDuplicateImplementation (Indexer indexer)
7552 if (this == indexer)
7555 if (!MemberName.Equals (indexer.MemberName))
7558 Type[] param_types = indexer.parameters.Types;
7560 // When it is not yet defined
7561 if (param_types == null)
7564 if (param_types.Length != parameters.Count)
7567 for (int i = 0; i < param_types.Length; i++)
7568 if (param_types [i] != parameters.Types [i])
7571 Report.SymbolRelatedToPreviousError (indexer);
7572 Report.Error (111, Location, TypeContainer.Error111, indexer.GetSignatureForError ());
7577 public override bool Define ()
7579 if (!DoDefineBase ())
7582 if (!base.Define ())
7585 if (!parameters.Resolve (ds))
7588 if (!CheckParameters (parameters))
7591 if (MemberType == TypeManager.void_type) {
7592 Report.Error (620, Location, "Indexers cannot have void type");
7596 if (OptAttributes != null) {
7597 Attribute indexer_attr = OptAttributes.Search (TypeManager.indexer_name_type);
7598 if (indexer_attr != null) {
7599 // Remove the attribute from the list because it is not emitted
7600 OptAttributes.Attrs.Remove (indexer_attr);
7602 string name = indexer_attr.GetIndexerAttributeValue ();
7608 if (IsExplicitImpl) {
7609 Report.Error (415, indexer_attr.Location,
7610 "The `IndexerName' attribute is valid only on an " +
7611 "indexer that is not an explicit interface member declaration");
7615 if ((ModFlags & Modifiers.OVERRIDE) != 0) {
7616 Report.Error (609, indexer_attr.Location,
7617 "Cannot set the `IndexerName' attribute on an indexer marked override");
7623 if (InterfaceType != null) {
7624 string base_IndexerName = TypeManager.IndexerPropertyName (InterfaceType);
7625 if (base_IndexerName != Name)
7626 ShortName = base_IndexerName;
7629 if (!Parent.PartialContainer.AddMember (this) ||
7630 !Parent.PartialContainer.AddMember (Get) || !Parent.PartialContainer.AddMember (Set))
7636 flags |= MethodAttributes.HideBySig | MethodAttributes.SpecialName;
7638 if (!DefineAccessors ())
7642 // Setup iterator if we are one
7643 if ((ModFlags & Modifiers.METHOD_YIELDS) != 0){
7644 Iterator iterator = Iterator.CreateIterator (Get, Parent, null, ModFlags);
7645 if (iterator == null)
7651 // Now name the parameters
7653 Parameter [] p = parameters.FixedParameters;
7655 // TODO: should be done in parser and it needs to do cycle
7656 if ((p [0].ModFlags & Parameter.Modifier.ISBYREF) != 0) {
7657 CSharpParser.Error_ParameterModifierNotValid (Location);
7662 PropertyBuilder = Parent.TypeBuilder.DefineProperty (
7663 Name, PropertyAttributes.None, MemberType, parameters.Types);
7666 PropertyBuilder.SetGetMethod (GetBuilder);
7669 PropertyBuilder.SetSetMethod (SetBuilder);
7671 TypeManager.RegisterIndexer (PropertyBuilder, GetBuilder, SetBuilder, parameters.Types);
7676 public override string GetDocCommentName (DeclSpace ds)
7678 return DocUtil.GetMethodDocCommentName (this, parameters, ds);
7681 public override string GetSignatureForError ()
7683 StringBuilder sb = new StringBuilder (Parent.GetSignatureForError ());
7684 if (MemberName.Left != null) {
7686 sb.Append (MemberName.Left);
7689 sb.Append (".this");
7690 sb.Append (parameters.GetSignatureForError ().Replace ('(', '[').Replace (')', ']'));
7691 return sb.ToString ();
7694 public override bool MarkForDuplicationCheck ()
7696 caching_flags |= Flags.TestMethodDuplication;
7700 protected override PropertyInfo ResolveBaseProperty ()
7702 return Parent.PartialContainer.BaseCache.FindMemberToOverride (
7703 Parent.TypeBuilder, Name, parameters.Types, null, true) as PropertyInfo;
7706 protected override bool VerifyClsCompliance ()
7708 if (!base.VerifyClsCompliance ())
7711 parameters.VerifyClsCompliance ();
7716 public class Operator : MethodOrOperator, IAnonymousHost {
7718 const int AllowedModifiers =
7724 public enum OpType : byte {
7734 // Unary and Binary operators
7757 // Implicit and Explicit
7761 // Just because of enum
7765 public readonly OpType OperatorType;
7767 public Operator (DeclSpace parent, OpType type, Expression ret_type,
7768 int mod_flags, Parameters parameters,
7769 ToplevelBlock block, Attributes attrs, Location loc)
7770 : base (parent, null, ret_type, mod_flags, AllowedModifiers, false,
7771 new MemberName ("op_" + type.ToString(), loc), attrs, parameters)
7773 OperatorType = type;
7777 public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
7779 if (a.Type == TypeManager.conditional_attribute_type) {
7780 Error_ConditionalAttributeIsNotValid ();
7784 base.ApplyAttributeBuilder (a, cb);
7787 protected override bool CheckForDuplications ()
7789 ArrayList ar = Parent.PartialContainer.Operators;
7791 int arLen = ar.Count;
7793 for (int i = 0; i < arLen; i++) {
7794 Operator o = (Operator) ar [i];
7795 if (IsDuplicateImplementation (o))
7800 ar = Parent.PartialContainer.Methods;
7802 int arLen = ar.Count;
7804 for (int i = 0; i < arLen; i++) {
7805 Method m = (Method) ar [i];
7806 if (IsDuplicateImplementation (m))
7814 public override bool Define ()
7816 const int RequiredModifiers = Modifiers.PUBLIC | Modifiers.STATIC;
7817 if ((ModFlags & RequiredModifiers) != RequiredModifiers){
7818 Report.Error (558, Location, "User-defined operator `{0}' must be declared static and public", GetSignatureForError ());
7822 // imlicit and explicit operator of same types are not allowed
7823 if (OperatorType == OpType.Explicit || OperatorType == OpType.Implicit)
7824 MarkForDuplicationCheck ();
7826 if (!base.Define ())
7829 if (MemberType == TypeManager.void_type) {
7830 Report.Error (590, Location, "User-defined operators cannot return void");
7834 Type declaring_type = MethodData.DeclaringType;
7835 Type return_type = MemberType;
7836 Type first_arg_type = ParameterTypes [0];
7838 // Rules for conversion operators
7840 if (OperatorType == OpType.Implicit || OperatorType == OpType.Explicit) {
7841 if (first_arg_type == return_type && first_arg_type == declaring_type){
7842 Report.Error (555, Location,
7843 "User-defined operator cannot take an object of the enclosing type and convert to an object of the enclosing type");
7847 if ((first_arg_type != declaring_type) && (return_type != declaring_type) &&
7848 !TypeManager.IsNullableTypeOf (first_arg_type, declaring_type) &&
7849 !TypeManager.IsNullableTypeOf (return_type, declaring_type)) {
7852 "User-defined conversion must convert to or from the " +
7857 if (first_arg_type.IsInterface || return_type.IsInterface){
7858 Report.Error (552, Location, "User-defined conversion `{0}' cannot convert to or from an interface type",
7859 GetSignatureForError ());
7863 if (first_arg_type.IsSubclassOf (return_type) || return_type.IsSubclassOf (first_arg_type)) {
7864 if (declaring_type.IsSubclassOf (return_type) || declaring_type.IsSubclassOf (first_arg_type)) {
7865 Report.Error (553, Location, "User-defined conversion `{0}' cannot convert to or from base class",
7866 GetSignatureForError ());
7869 Report.Error (554, Location, "User-defined conversion `{0}' cannot convert to or from derived class",
7870 GetSignatureForError ());
7873 } else if (OperatorType == OpType.LeftShift || OperatorType == OpType.RightShift) {
7874 if (first_arg_type != declaring_type || ParameterTypes [1] != TypeManager.int32_type) {
7875 Report.Error (564, Location, "Overloaded shift operator must have the type of the first operand be the containing type, and the type of the second operand must be int");
7878 } else if (Parameters.Count == 1) {
7879 // Checks for Unary operators
7881 if (OperatorType == OpType.Increment || OperatorType == OpType.Decrement) {
7882 if (return_type != declaring_type && !TypeManager.IsSubclassOf (return_type, declaring_type)) {
7883 Report.Error (448, Location,
7884 "The return type for ++ or -- operator must be the containing type or derived from the containing type");
7887 if (first_arg_type != declaring_type) {
7889 559, Location, "The parameter type for ++ or -- operator must be the containing type");
7894 if (first_arg_type != declaring_type){
7897 "The parameter of a unary operator must be the " +
7902 if (OperatorType == OpType.True || OperatorType == OpType.False) {
7903 if (return_type != TypeManager.bool_type){
7906 "The return type of operator True or False " +
7913 // Checks for Binary operators
7915 if (first_arg_type != declaring_type &&
7916 ParameterTypes [1] != declaring_type){
7919 "One of the parameters of a binary operator must " +
7920 "be the containing type");
7928 protected override bool DoDefine ()
7930 if (!base.DoDefine ())
7933 flags |= MethodAttributes.SpecialName | MethodAttributes.HideBySig;
7937 public override void Emit ()
7941 Parameters.ApplyAttributes (MethodBuilder);
7944 // abstract or extern methods have no bodies
7946 if ((ModFlags & (Modifiers.ABSTRACT | Modifiers.EXTERN)) != 0)
7950 if ((flags & MethodAttributes.PinvokeImpl) == 0)
7951 ec = CreateEmitContext (Parent, MethodBuilder.GetILGenerator ());
7953 ec = CreateEmitContext (Parent, null);
7955 SourceMethod source = SourceMethod.Create (Parent, MethodBuilder, Block);
7956 ec.EmitTopBlock (this, Block);
7959 source.CloseMethod ();
7964 // Operator cannot be override
7965 protected override MethodInfo FindOutBaseMethod (ref Type base_ret_type)
7970 public static string GetName (OpType ot)
7973 case OpType.LogicalNot:
7975 case OpType.OnesComplement:
7977 case OpType.Increment:
7979 case OpType.Decrement:
7985 case OpType.Addition:
7987 case OpType.Subtraction:
7989 case OpType.UnaryPlus:
7991 case OpType.UnaryNegation:
7993 case OpType.Multiply:
7995 case OpType.Division:
7997 case OpType.Modulus:
7999 case OpType.BitwiseAnd:
8001 case OpType.BitwiseOr:
8003 case OpType.ExclusiveOr:
8005 case OpType.LeftShift:
8007 case OpType.RightShift:
8009 case OpType.Equality:
8011 case OpType.Inequality:
8013 case OpType.GreaterThan:
8015 case OpType.LessThan:
8017 case OpType.GreaterThanOrEqual:
8019 case OpType.LessThanOrEqual:
8021 case OpType.Implicit:
8023 case OpType.Explicit:
8029 public static OpType GetOperatorType (string name)
8031 if (name.StartsWith ("op_")){
8032 for (int i = 0; i < Unary.oper_names.Length; ++i) {
8033 if (Unary.oper_names [i] == name)
8037 for (int i = 0; i < Binary.oper_names.Length; ++i) {
8038 if (Binary.oper_names [i] == name)
8045 public override string GetSignatureForError ()
8047 StringBuilder sb = new StringBuilder ();
8048 if (OperatorType == OpType.Implicit || OperatorType == OpType.Explicit) {
8049 sb.AppendFormat ("{0}.{1} operator {2}", Parent.GetSignatureForError (), GetName (OperatorType), Type.Type == null ? Type.ToString () : TypeManager.CSharpName (Type.Type));
8052 sb.AppendFormat ("{0}.operator {1}", Parent.GetSignatureForError (), GetName (OperatorType));
8055 sb.Append (Parameters.GetSignatureForError ());
8056 return sb.ToString ();
8061 // This is used to compare method signatures
8063 struct MethodSignature {
8065 public Type RetType;
8066 public Type [] Parameters;
8069 /// This delegate is used to extract methods which have the
8070 /// same signature as the argument
8072 public static MemberFilter method_signature_filter = new MemberFilter (MemberSignatureCompare);
8074 public MethodSignature (string name, Type ret_type, Type [] parameters)
8079 if (parameters == null)
8080 Parameters = Type.EmptyTypes;
8082 Parameters = parameters;
8085 public override string ToString ()
8088 if (Parameters.Length != 0){
8089 System.Text.StringBuilder sb = new System.Text.StringBuilder ();
8090 for (int i = 0; i < Parameters.Length; i++){
8091 sb.Append (Parameters [i]);
8092 if (i+1 < Parameters.Length)
8095 pars = sb.ToString ();
8098 return String.Format ("{0} {1} ({2})", RetType, Name, pars);
8101 public override int GetHashCode ()
8103 return Name.GetHashCode ();
8106 public override bool Equals (Object o)
8108 MethodSignature other = (MethodSignature) o;
8110 if (other.Name != Name)
8113 if (other.RetType != RetType)
8116 if (Parameters == null){
8117 if (other.Parameters == null)
8122 if (other.Parameters == null)
8125 int c = Parameters.Length;
8126 if (other.Parameters.Length != c)
8129 for (int i = 0; i < c; i++)
8130 if (other.Parameters [i] != Parameters [i])
8136 static bool MemberSignatureCompare (MemberInfo m, object filter_criteria)
8138 MethodSignature sig = (MethodSignature) filter_criteria;
8140 if (m.Name != sig.Name)
8144 MethodInfo mi = m as MethodInfo;
8145 PropertyInfo pi = m as PropertyInfo;
8148 ReturnType = mi.ReturnType;
8149 else if (pi != null)
8150 ReturnType = pi.PropertyType;
8155 // we use sig.RetType == null to mean `do not check the
8156 // method return value.
8158 if (sig.RetType != null)
8159 if (ReturnType != sig.RetType)
8164 args = TypeManager.GetParameterData (mi).Types;
8166 args = TypeManager.GetArgumentTypes (pi);
8167 Type [] sigp = sig.Parameters;
8169 if (args.Length != sigp.Length)
8172 for (int i = args.Length; i > 0; ){
8174 if (args [i] != sigp [i])