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 // Dual licensed under the terms of the MIT X11 or GNU GPL
10 // Copyright 2001, 2002, 2003 Ximian, Inc (http://www.ximian.com)
11 // Copyright 2004-2008 Novell, Inc
15 using System
.Collections
;
16 using System
.Collections
.Specialized
;
17 using System
.Reflection
;
18 using System
.Reflection
.Emit
;
19 using System
.Runtime
.CompilerServices
;
20 using System
.Runtime
.InteropServices
;
21 using System
.Security
;
22 using System
.Security
.Permissions
;
25 #if BOOTSTRAP_WITH_OLDLIB || NET_2_1
26 using XmlElement
= System
.Object
;
31 using Mono
.CompilerServices
.SymbolWriter
;
33 namespace Mono
.CSharp
{
45 /// This is the base class for structs and classes.
47 public abstract class TypeContainer
: DeclSpace
, IMemberContainer
{
49 public class MemberCoreArrayList
: ArrayList
52 /// Defines the MemberCore objects that are in this array
54 public virtual void DefineContainerMembers ()
56 foreach (MemberCore mc
in this) {
59 } catch (Exception e
) {
60 throw new InternalErrorException (mc
, e
);
65 public virtual void Emit ()
67 foreach (MemberCore mc
in this)
72 public class OperatorArrayList
: MemberCoreArrayList
74 TypeContainer container
;
76 public OperatorArrayList (TypeContainer container
)
78 this.container
= container
;
82 // Checks that some operators come in pairs:
88 // They are matched based on the return type and the argument types
90 void CheckPairedOperators ()
92 bool has_equality_or_inequality
= false;
93 Operator
[] operators
= (Operator
[]) ToArray (typeof (Operator
));
94 bool [] has_pair
= new bool [operators
.Length
];
96 for (int i
= 0; i
< Count
; ++i
) {
97 if (operators
[i
] == null)
100 Operator o_a
= operators
[i
];
101 Operator
.OpType o_type
= o_a
.OperatorType
;
102 if (o_type
== Operator
.OpType
.Equality
|| o_type
== Operator
.OpType
.Inequality
)
103 has_equality_or_inequality
= true;
105 Operator
.OpType matching_type
= o_a
.GetMatchingOperator ();
106 if (matching_type
== Operator
.OpType
.TOP
) {
107 operators
[i
] = null;
111 for (int ii
= 0; ii
< Count
; ++ii
) {
112 Operator o_b
= operators
[ii
];
113 if (o_b
== null || o_b
.OperatorType
!= matching_type
)
116 if (!TypeManager
.IsEqual (o_a
.ReturnType
, o_b
.ReturnType
))
119 if (!TypeManager
.IsEqual (o_a
.ParameterTypes
, o_b
.ParameterTypes
))
122 operators
[i
] = null;
125 // Used to ignore duplicate user conversions
127 has_pair
[ii
] = true;
131 for (int i
= 0; i
< Count
; ++i
) {
132 if (operators
[i
] == null || has_pair
[i
])
135 Operator o
= operators
[i
];
136 Report
.Error (216, o
.Location
,
137 "The operator `{0}' requires a matching operator `{1}' to also be defined",
138 o
.GetSignatureForError (), Operator
.GetName (o
.GetMatchingOperator ()));
141 if (has_equality_or_inequality
&& Report
.WarningLevel
> 2) {
142 if (container
.Methods
== null || !container
.HasEquals
)
143 Report
.Warning (660, 2, container
.Location
, "`{0}' defines operator == or operator != but does not override Object.Equals(object o)", container
.GetSignatureForError ());
145 if (container
.Methods
== null || !container
.HasGetHashCode
)
146 Report
.Warning (661, 2, container
.Location
, "`{0}' defines operator == or operator != but does not override Object.GetHashCode()", container
.GetSignatureForError ());
150 public override void DefineContainerMembers ()
152 base.DefineContainerMembers ();
153 CheckPairedOperators ();
161 GetHashCode
= 1 << 1,
162 HasStaticFieldInitializer
= 1 << 2
166 // Whether this is a struct, class or interface
167 public readonly Kind Kind
;
169 // Holds a list of classes and structures
170 protected ArrayList types
;
172 MemberCoreArrayList ordered_explicit_member_list
;
173 MemberCoreArrayList ordered_member_list
;
175 // Holds the list of properties
176 MemberCoreArrayList properties
;
178 // Holds the list of delegates
179 MemberCoreArrayList delegates
;
181 // Holds the list of constructors
182 protected MemberCoreArrayList instance_constructors
;
184 // Holds the list of fields
185 protected MemberCoreArrayList fields
;
187 // Holds a list of fields that have initializers
188 protected ArrayList initialized_fields
;
190 // Holds a list of static fields that have initializers
191 protected ArrayList initialized_static_fields
;
193 // Holds the list of constants
194 protected MemberCoreArrayList constants
;
196 // Holds the methods.
197 MemberCoreArrayList methods
;
200 protected MemberCoreArrayList events
;
202 // Holds the indexers
205 // Holds the operators
206 MemberCoreArrayList operators
;
208 // Holds the compiler generated classes
209 ArrayList compiler_generated
;
212 // Pointers to the default constructor and the default static constructor
214 protected Constructor default_constructor
;
215 protected Constructor default_static_constructor
;
218 // Points to the first non-static field added to the container.
220 // This is an arbitrary choice. We are interested in looking at _some_ non-static field,
221 // and the first one's as good as any.
223 FieldBase first_nonstatic_field
= null;
226 // This one is computed after we can distinguish interfaces
227 // from classes from the arraylist `type_bases'
230 TypeExpr
[] iface_exprs
;
232 GenericTypeParameterBuilder
[] nested_gen_params
;
234 protected ArrayList type_bases
;
236 protected bool members_defined
;
237 bool members_defined_ok
;
239 // The interfaces we implement.
240 protected Type
[] ifaces
;
242 // The base member cache and our member cache
243 MemberCache base_cache
;
244 protected MemberCache member_cache
;
246 public const string DefaultIndexerName
= "Item";
248 private bool seen_normal_indexers
= false;
249 private string indexer_name
= DefaultIndexerName
;
250 protected bool requires_delayed_unmanagedtype_check
;
252 private CachedMethods cached_method
;
254 ArrayList partial_parts
;
257 /// The pending methods that need to be implemented
258 // (interfaces or abstract methods)
260 PendingImplementation pending
;
262 public TypeContainer (NamespaceEntry ns
, DeclSpace parent
, MemberName name
,
263 Attributes attrs
, Kind kind
)
264 : base (ns
, parent
, name
, attrs
)
266 if (parent
!= null && parent
.NamespaceEntry
!= ns
)
267 throw new InternalErrorException ("A nested type should be in the same NamespaceEntry as its enclosing class");
270 this.PartialContainer
= this;
273 public bool AddMember (MemberCore symbol
)
275 return AddToContainer (symbol
, symbol
.MemberName
.Basename
);
278 protected virtual bool AddMemberType (DeclSpace ds
)
280 return AddToContainer (ds
, ds
.Basename
);
283 protected virtual void RemoveMemberType (DeclSpace ds
)
285 RemoveFromContainer (ds
.Basename
);
288 public void AddConstant (Const constant
)
290 if (!AddMember (constant
))
293 if (constants
== null)
294 constants
= new MemberCoreArrayList ();
296 constants
.Add (constant
);
299 public TypeContainer
AddTypeContainer (TypeContainer tc
)
301 if (!AddMemberType (tc
))
305 types
= new MemberCoreArrayList ();
311 public virtual TypeContainer
AddPartial (TypeContainer next_part
)
313 return AddPartial (next_part
, next_part
.Basename
);
316 protected TypeContainer
AddPartial (TypeContainer next_part
, string name
)
318 next_part
.ModFlags
|= Modifiers
.PARTIAL
;
319 TypeContainer tc
= defined_names
[name
] as TypeContainer
;
322 return AddTypeContainer (next_part
);
324 if ((tc
.ModFlags
& Modifiers
.PARTIAL
) == 0) {
325 Report
.SymbolRelatedToPreviousError (next_part
);
326 Error_MissingPartialModifier (tc
);
329 if (tc
.Kind
!= next_part
.Kind
) {
330 Report
.SymbolRelatedToPreviousError (tc
);
331 Report
.Error (261, next_part
.Location
,
332 "Partial declarations of `{0}' must be all classes, all structs or all interfaces",
333 next_part
.GetSignatureForError ());
336 if ((tc
.ModFlags
& Modifiers
.Accessibility
) != (next_part
.ModFlags
& Modifiers
.Accessibility
) &&
337 ((tc
.ModFlags
& Modifiers
.DEFAULT_ACCESS_MODIFER
) == 0 &&
338 (next_part
.ModFlags
& Modifiers
.DEFAULT_ACCESS_MODIFER
) == 0)) {
339 Report
.SymbolRelatedToPreviousError (tc
);
340 Report
.Error (262, next_part
.Location
,
341 "Partial declarations of `{0}' have conflicting accessibility modifiers",
342 next_part
.GetSignatureForError ());
345 if (tc
.partial_parts
== null)
346 tc
.partial_parts
= new ArrayList (1);
348 if ((next_part
.ModFlags
& Modifiers
.DEFAULT_ACCESS_MODIFER
) != 0) {
349 tc
.ModFlags
|= next_part
.ModFlags
& ~
(Modifiers
.DEFAULT_ACCESS_MODIFER
| Modifiers
.Accessibility
);
350 } else if ((tc
.ModFlags
& Modifiers
.DEFAULT_ACCESS_MODIFER
) != 0) {
351 tc
.ModFlags
&= ~
(Modifiers
.DEFAULT_ACCESS_MODIFER
| Modifiers
.Accessibility
);
352 tc
.ModFlags
|= next_part
.ModFlags
;
354 tc
.ModFlags
|= next_part
.ModFlags
;
357 if (next_part
.attributes
!= null) {
358 if (tc
.attributes
== null)
359 tc
.attributes
= next_part
.attributes
;
361 tc
.attributes
.AddAttributes (next_part
.attributes
.Attrs
);
364 next_part
.PartialContainer
= tc
;
365 tc
.partial_parts
.Add (next_part
);
369 public virtual void RemoveTypeContainer (TypeContainer next_part
)
372 types
.Remove (next_part
);
373 RemoveMemberType (next_part
);
376 public void AddDelegate (Delegate d
)
378 if (!AddMemberType (d
))
381 if (delegates
== null)
382 delegates
= new MemberCoreArrayList ();
387 private void AddMemberToList (MemberCore mc
, ArrayList alist
, bool isexplicit
)
389 if (ordered_explicit_member_list
== null) {
390 ordered_explicit_member_list
= new MemberCoreArrayList ();
391 ordered_member_list
= new MemberCoreArrayList ();
395 if (Kind
== Kind
.Interface
) {
396 Report
.Error (541, mc
.Location
,
397 "`{0}': explicit interface declaration can only be declared in a class or struct",
398 mc
.GetSignatureForError ());
401 ordered_explicit_member_list
.Add (mc
);
402 alist
.Insert (0, mc
);
404 ordered_member_list
.Add (mc
);
410 public void AddMethod (MethodOrOperator method
)
412 if (!AddToContainer (method
, method
.MemberName
.Basename
))
416 methods
= new MemberCoreArrayList ();
418 if (method
.MemberName
.Left
!= null)
419 AddMemberToList (method
, methods
, true);
421 AddMemberToList (method
, methods
, false);
424 public void AddConstructor (Constructor c
)
426 bool is_static
= (c
.ModFlags
& Modifiers
.STATIC
) != 0;
427 if (!AddToContainer (c
, is_static
?
428 ConstructorBuilder
.ConstructorName
: ConstructorBuilder
.TypeConstructorName
))
431 if (is_static
&& c
.Parameters
.IsEmpty
){
432 if (default_static_constructor
!= null) {
433 Report
.SymbolRelatedToPreviousError (default_static_constructor
);
434 Report
.Error (111, c
.Location
,
435 "A member `{0}' is already defined. Rename this member or use different parameter types",
436 c
.GetSignatureForError ());
440 default_static_constructor
= c
;
442 if (c
.Parameters
.IsEmpty
)
443 default_constructor
= c
;
445 if (instance_constructors
== null)
446 instance_constructors
= new MemberCoreArrayList ();
448 instance_constructors
.Add (c
);
452 public bool AddField (FieldBase field
)
454 if (!AddMember (field
))
458 fields
= new MemberCoreArrayList ();
462 if ((field
.ModFlags
& Modifiers
.STATIC
) != 0)
465 if (first_nonstatic_field
== null) {
466 first_nonstatic_field
= field
;
470 if (Kind
== Kind
.Struct
&& first_nonstatic_field
.Parent
!= field
.Parent
) {
471 Report
.SymbolRelatedToPreviousError (first_nonstatic_field
.Parent
);
472 Report
.Warning (282, 3, field
.Location
,
473 "struct instance field `{0}' found in different declaration from instance field `{1}'",
474 field
.GetSignatureForError (), first_nonstatic_field
.GetSignatureForError ());
479 public void AddProperty (Property prop
)
481 if (!AddMember (prop
) ||
482 !AddMember (prop
.Get
) || !AddMember (prop
.Set
))
485 if (properties
== null)
486 properties
= new MemberCoreArrayList ();
488 if (prop
.MemberName
.Left
!= null)
489 AddMemberToList (prop
, properties
, true);
491 AddMemberToList (prop
, properties
, false);
494 public void AddEvent (Event e
)
499 if (e
is EventProperty
) {
500 if (!AddMember (e
.Add
))
503 if (!AddMember (e
.Remove
))
508 events
= new MemberCoreArrayList ();
514 /// Indexer has special handling in constrast to other AddXXX because the name can be driven by IndexerNameAttribute
516 public void AddIndexer (Indexer i
)
518 if (indexers
== null)
519 indexers
= new ArrayList ();
521 if (i
.IsExplicitImpl
)
522 AddMemberToList (i
, indexers
, true);
524 AddMemberToList (i
, indexers
, false);
527 public void AddOperator (Operator op
)
532 if (operators
== null)
533 operators
= new OperatorArrayList (this);
538 public void AddCompilerGeneratedClass (CompilerGeneratedClass c
)
540 Report
.Debug (64, "ADD COMPILER GENERATED CLASS", this, c
);
542 if (compiler_generated
== null)
543 compiler_generated
= new ArrayList ();
545 compiler_generated
.Add (c
);
548 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
550 if (a
.Type
== pa
.DefaultMember
) {
551 if (Indexers
!= null) {
552 Report
.Error (646, a
.Location
, "Cannot specify the `DefaultMember' attribute on type containing an indexer");
557 base.ApplyAttributeBuilder (a
, cb
, pa
);
560 public override AttributeTargets AttributeTargets
{
562 throw new NotSupportedException ();
566 public ArrayList Types
{
572 public MemberCoreArrayList Methods
{
578 public ArrayList Constants
{
584 protected Type BaseType
{
586 return TypeBuilder
.BaseType
;
590 public ArrayList Fields
{
596 public ArrayList InstanceConstructors
{
598 return instance_constructors
;
602 public ArrayList Properties
{
608 public ArrayList Events
{
614 public ArrayList Indexers
{
620 public ArrayList Operators
{
626 public ArrayList Delegates
{
632 protected override TypeAttributes TypeAttr
{
634 return Modifiers
.TypeAttr (ModFlags
, IsTopLevel
) | base.TypeAttr
;
638 public string IndexerName
{
640 return indexers
== null ? DefaultIndexerName
: indexer_name
;
644 public bool IsComImport
{
646 if (OptAttributes
== null)
649 return OptAttributes
.Contains (PredefinedAttributes
.Get
.ComImport
);
653 public virtual void RegisterFieldForInitialization (MemberCore field
, FieldInitializer expression
)
655 if ((field
.ModFlags
& Modifiers
.STATIC
) != 0){
656 if (initialized_static_fields
== null) {
657 PartialContainer
.HasStaticFieldInitializer
= true;
658 initialized_static_fields
= new ArrayList (4);
661 initialized_static_fields
.Add (expression
);
663 if (initialized_fields
== null)
664 initialized_fields
= new ArrayList (4);
666 initialized_fields
.Add (expression
);
670 public void ResolveFieldInitializers (EmitContext ec
)
672 if (partial_parts
!= null) {
673 foreach (TypeContainer part
in partial_parts
) {
674 part
.DoResolveFieldInitializers (ec
);
677 DoResolveFieldInitializers (ec
);
680 void DoResolveFieldInitializers (EmitContext ec
)
683 if (initialized_static_fields
== null)
686 bool has_complex_initializer
= !RootContext
.Optimize
;
688 ExpressionStatement
[] init
= new ExpressionStatement
[initialized_static_fields
.Count
];
689 for (i
= 0; i
< initialized_static_fields
.Count
; ++i
) {
690 FieldInitializer fi
= (FieldInitializer
) initialized_static_fields
[i
];
691 ExpressionStatement s
= fi
.ResolveStatement (ec
);
693 s
= EmptyExpressionStatement
.Instance
;
694 } else if (fi
.IsComplexInitializer
) {
695 has_complex_initializer
|= true;
701 for (i
= 0; i
< initialized_static_fields
.Count
; ++i
) {
702 FieldInitializer fi
= (FieldInitializer
) initialized_static_fields
[i
];
704 // Need special check to not optimize code like this
705 // static int a = b = 5;
708 if (!has_complex_initializer
&& fi
.IsDefaultInitializer
)
711 ec
.CurrentBlock
.AddScopeStatement (new StatementExpression (init
[i
]));
717 if (initialized_fields
== null)
720 for (int i
= 0; i
< initialized_fields
.Count
; ++i
) {
721 FieldInitializer fi
= (FieldInitializer
) initialized_fields
[i
];
722 ExpressionStatement s
= fi
.ResolveStatement (ec
);
727 // Field is re-initialized to its default value => removed
729 if (fi
.IsDefaultInitializer
&& RootContext
.Optimize
)
732 ec
.CurrentBlock
.AddScopeStatement (new StatementExpression (s
));
737 // Emits the instance field initializers
739 public bool EmitFieldInitializers (EmitContext ec
)
741 if (partial_parts
!= null) {
742 foreach (TypeContainer part
in partial_parts
)
743 part
.EmitFieldInitializers (ec
);
749 fields
= initialized_static_fields
;
751 fields
= initialized_fields
;
757 foreach (FieldInitializer f
in fields
) {
758 f
.EmitStatement (ec
);
763 public override string DocComment
{
775 public PendingImplementation PendingImplementations
{
776 get { return pending; }
779 public override bool GetClsCompliantAttributeValue ()
781 if (PartialContainer
!= this)
782 return PartialContainer
.GetClsCompliantAttributeValue ();
784 return base.GetClsCompliantAttributeValue ();
787 public virtual void AddBasesForPart (DeclSpace part
, ArrayList bases
)
789 // FIXME: get rid of partial_parts and store lists of bases of each part here
790 // assumed, not verified: 'part' is in 'partial_parts'
791 ((TypeContainer
) part
).type_bases
= bases
;
795 /// This function computes the Base class and also the
796 /// list of interfaces that the class or struct @c implements.
798 /// The return value is an array (might be null) of
799 /// interfaces implemented (as Types).
801 /// The @base_class argument is set to the base object or null
802 /// if this is `System.Object'.
804 protected virtual TypeExpr
[] ResolveBaseTypes (out TypeExpr base_class
)
807 if (type_bases
== null)
810 int count
= type_bases
.Count
;
811 TypeExpr
[] ifaces
= null;
812 for (int i
= 0, j
= 0; i
< count
; i
++){
813 FullNamedExpression fne
= (FullNamedExpression
) type_bases
[i
];
816 // Standard ResolveAsTypeTerminal cannot be used in this case because
817 // it does ObsoleteAttribute and constraint checks which require
818 // base type to be set
820 TypeExpr fne_resolved
= fne
.ResolveAsBaseTerminal (this, false);
821 if (fne_resolved
== null)
824 if (i
== 0 && Kind
== Kind
.Class
&& !fne_resolved
.Type
.IsInterface
) {
825 base_class
= fne_resolved
;
830 ifaces
= new TypeExpr
[count
- i
];
832 if (fne_resolved
.Type
.IsInterface
) {
833 for (int ii
= 0; ii
< j
; ++ii
) {
834 if (TypeManager
.IsEqual (fne_resolved
.Type
, ifaces
[ii
].Type
)) {
835 Report
.Error (528, Location
, "`{0}' is already listed in interface list",
836 fne_resolved
.GetSignatureForError ());
841 if (Kind
== Kind
.Interface
&& !IsAccessibleAs (fne_resolved
.Type
)) {
842 Report
.Error (61, fne
.Location
,
843 "Inconsistent accessibility: base interface `{0}' is less accessible than interface `{1}'",
844 fne_resolved
.GetSignatureForError (), GetSignatureForError ());
847 Report
.SymbolRelatedToPreviousError (fne_resolved
.Type
);
848 if (Kind
!= Kind
.Class
) {
849 Report
.Error (527, fne
.Location
, "Type `{0}' in interface list is not an interface", fne_resolved
.GetSignatureForError ());
850 } else if (base_class
!= null)
851 Report
.Error (1721, fne
.Location
, "`{0}': Classes cannot have multiple base classes (`{1}' and `{2}')",
852 GetSignatureForError (), base_class
.GetSignatureForError (), fne_resolved
.GetSignatureForError ());
854 Report
.Error (1722, fne
.Location
, "`{0}': Base class `{1}' must be specified as first",
855 GetSignatureForError (), fne_resolved
.GetSignatureForError ());
859 ifaces
[j
++] = fne_resolved
;
865 TypeExpr
[] GetNormalPartialBases (ref TypeExpr base_class
)
867 ArrayList ifaces
= new ArrayList (0);
868 if (iface_exprs
!= null)
869 ifaces
.AddRange (iface_exprs
);
871 foreach (TypeContainer part
in partial_parts
) {
872 TypeExpr new_base_class
;
873 TypeExpr
[] new_ifaces
= part
.ResolveBaseTypes (out new_base_class
);
874 if (new_base_class
!= TypeManager
.system_object_expr
) {
875 if (base_class
== TypeManager
.system_object_expr
)
876 base_class
= new_base_class
;
878 if (new_base_class
!= null && !new_base_class
.Equals (base_class
)) {
879 Report
.SymbolRelatedToPreviousError (base_class
.Location
, "");
880 Report
.Error (263, part
.Location
,
881 "Partial declarations of `{0}' must not specify different base classes",
882 part
.GetSignatureForError ());
889 if (new_ifaces
== null)
892 foreach (TypeExpr iface
in new_ifaces
) {
893 if (ifaces
.Contains (iface
))
900 if (ifaces
.Count
== 0)
903 return (TypeExpr
[])ifaces
.ToArray (typeof (TypeExpr
));
906 bool CheckGenericInterfaces (Type
[] ifaces
)
909 ArrayList already_checked
= new ArrayList ();
911 for (int i
= 0; i
< ifaces
.Length
; i
++) {
912 Type iface
= ifaces
[i
];
913 foreach (Type t
in already_checked
) {
917 Type
[] inferred
= new Type
[CountTypeParameters
];
918 if (!TypeManager
.MayBecomeEqualGenericInstances (iface
, t
, inferred
, null))
921 Report
.Error (695, Location
,
922 "`{0}' cannot implement both `{1}' and `{2}' " +
923 "because they may unify for some type parameter substitutions",
924 TypeManager
.CSharpName (TypeBuilder
), TypeManager
.CSharpName (iface
),
925 TypeManager
.CSharpName (t
));
929 already_checked
.Add (iface
);
938 bool CreateTypeBuilder ()
941 Type default_parent
= null;
942 if (Kind
== Kind
.Struct
)
943 default_parent
= TypeManager
.value_type
;
944 else if (Kind
== Kind
.Enum
)
945 default_parent
= TypeManager
.enum_type
;
948 // Sets .size to 1 for structs with no instance fields
950 int type_size
= Kind
== Kind
.Struct
&& first_nonstatic_field
== null ? 1 : 0;
953 if (TypeManager
.NamespaceClash (Name
, Location
)) {
957 ModuleBuilder builder
= Module
.Builder
;
958 TypeBuilder
= builder
.DefineType (
959 Name
, TypeAttr
, default_parent
, type_size
);
961 TypeBuilder builder
= Parent
.TypeBuilder
;
963 TypeBuilder
= builder
.DefineNestedType (
964 Basename
, TypeAttr
, default_parent
, type_size
);
966 } catch (ArgumentException
) {
967 Report
.RuntimeMissingSupport (Location
, "static classes");
971 TypeManager
.AddUserType (this);
974 string[] param_names
= new string [TypeParameters
.Length
];
975 for (int i
= 0; i
< TypeParameters
.Length
; i
++)
976 param_names
[i
] = TypeParameters
[i
].Name
;
979 GenericTypeParameterBuilder
[] gen_params
= TypeBuilder
.DefineGenericParameters (param_names
);
981 int offset
= CountTypeParameters
- CurrentTypeParameters
.Length
;
983 nested_gen_params
= new GenericTypeParameterBuilder
[offset
];
984 Array
.Copy (gen_params
, nested_gen_params
, offset
);
987 for (int i
= offset
; i
< gen_params
.Length
; i
++)
988 CurrentTypeParameters
[i
- offset
].Define (gen_params
[i
]);
990 nested_gen_params
= null;
991 throw new NotSupportedException ();
998 bool DefineBaseTypes ()
1000 iface_exprs
= ResolveBaseTypes (out base_type
);
1001 if (partial_parts
!= null) {
1002 iface_exprs
= GetNormalPartialBases (ref base_type
);
1006 // GetClassBases calls ResolveBaseTypeExpr() on the various type expressions involved,
1007 // which in turn should have called DefineType()s on base types if necessary.
1009 // None of the code below should trigger DefineType()s on classes that we depend on.
1010 // Thus, we are eligible to be on the topological sort `type_container_resolve_order'.
1012 // Let's do it as soon as possible, since code below can call DefineType() on classes
1013 // that depend on us to be populated before they are.
1015 if (!(this is CompilerGeneratedClass
))
1016 RootContext
.RegisterOrder (this);
1018 if (!CheckRecursiveDefinition (this))
1021 if (base_type
!= null && base_type
.Type
!= null) {
1022 TypeBuilder
.SetParent (base_type
.Type
);
1025 // add interfaces that were not added at type creation
1026 if (iface_exprs
!= null) {
1027 ifaces
= TypeManager
.ExpandInterfaces (iface_exprs
);
1031 foreach (Type itype
in ifaces
)
1032 TypeBuilder
.AddInterfaceImplementation (itype
);
1034 if (!CheckGenericInterfaces (ifaces
))
1037 TypeManager
.RegisterBuilder (TypeBuilder
, ifaces
);
1044 // Defines the type in the appropriate ModuleBuilder or TypeBuilder.
1046 public TypeBuilder
CreateType ()
1048 if (TypeBuilder
!= null)
1054 if (!CreateTypeBuilder ()) {
1059 if (partial_parts
!= null) {
1060 foreach (TypeContainer part
in partial_parts
)
1061 part
.TypeBuilder
= TypeBuilder
;
1064 if (Types
!= null) {
1065 foreach (TypeContainer tc
in Types
) {
1066 if (tc
.CreateType () == null) {
1078 public override TypeBuilder
DefineType ()
1085 type_defined
= true;
1087 if (CreateType () == null) {
1092 if (!DefineBaseTypes ()) {
1097 if (!DefineNestedTypes ()) {
1105 public override void SetParameterInfo (ArrayList constraints_list
)
1107 base.SetParameterInfo (constraints_list
);
1109 if (!is_generic
|| PartialContainer
== this)
1112 TypeParameter
[] tc_names
= PartialContainer
.TypeParameters
;
1113 for (int i
= 0; i
< tc_names
.Length
; ++i
) {
1114 if (tc_names
[i
].Name
!= type_params
[i
].Name
) {
1115 Report
.SymbolRelatedToPreviousError (PartialContainer
.Location
, "");
1116 Report
.Error (264, Location
, "Partial declarations of `{0}' must have the same type parameter names in the same order",
1117 GetSignatureForError ());
1123 void UpdateTypeParameterConstraints (TypeContainer part
)
1125 TypeParameter
[] current_params
= CurrentTypeParameters
;
1126 for (int i
= 0; i
< current_params
.Length
; i
++) {
1127 Constraints c
= part
.CurrentTypeParameters
[i
].Constraints
;
1131 if (current_params
[i
].UpdateConstraints (part
, c
))
1134 Report
.SymbolRelatedToPreviousError (Location
, "");
1135 Report
.Error (265, part
.Location
,
1136 "Partial declarations of `{0}' have inconsistent constraints for type parameter `{1}'",
1137 GetSignatureForError (), current_params
[i
].GetSignatureForError ());
1141 public bool ResolveType ()
1143 if (!DoResolveType ())
1146 if (compiler_generated
!= null) {
1147 foreach (CompilerGeneratedClass c
in compiler_generated
)
1148 if (!c
.ResolveType ())
1155 protected virtual bool DoResolveType ()
1160 if (PartialContainer
!= this)
1161 throw new InternalErrorException ();
1163 TypeExpr current_type
= null;
1165 foreach (TypeParameter type_param
in CurrentTypeParameters
) {
1166 if (!type_param
.Resolve (this)) {
1172 if (partial_parts
!= null && is_generic
) {
1173 foreach (TypeContainer part
in partial_parts
)
1174 UpdateTypeParameterConstraints (part
);
1177 for (int i
= 0; i
< TypeParameters
.Length
; ++i
) {
1179 // FIXME: Same should be done for delegates
1180 // TODO: Quite ugly way how to propagate constraints to
1183 if (nested_gen_params
!= null && i
< nested_gen_params
.Length
) {
1184 TypeParameters
[i
].SetConstraints (nested_gen_params
[i
]);
1186 if (!TypeParameters
[i
].DefineType (this)) {
1193 // TODO: Very strange, why not simple make generic type from
1194 // current type parameters
1195 current_type
= new GenericTypeExpr (this, Location
);
1196 current_type
= current_type
.ResolveAsTypeTerminal (this, false);
1197 if (current_type
== null) {
1202 CurrentType
= current_type
.Type
;
1206 protected virtual bool DefineNestedTypes ()
1208 if (Types
!= null) {
1209 foreach (TypeContainer tc
in Types
)
1210 if (tc
.DefineType () == null)
1214 if (Delegates
!= null) {
1215 foreach (Delegate d
in Delegates
)
1216 if (d
.DefineType () == null)
1223 TypeContainer InTransit
;
1225 protected bool CheckRecursiveDefinition (TypeContainer tc
)
1227 if (InTransit
!= null) {
1228 Report
.SymbolRelatedToPreviousError (this);
1229 if (this is Interface
)
1231 529, tc
.Location
, "Inherited interface `{0}' causes a " +
1232 "cycle in the interface hierarchy of `{1}'",
1233 GetSignatureForError (), tc
.GetSignatureForError ());
1236 146, tc
.Location
, "Circular base class dependency " +
1237 "involving `{0}' and `{1}'",
1238 tc
.GetSignatureForError (), GetSignatureForError ());
1244 if (base_type
!= null && base_type
.Type
!= null) {
1245 Type t
= TypeManager
.DropGenericTypeArguments (base_type
.Type
);
1246 TypeContainer ptc
= TypeManager
.LookupTypeContainer (t
);
1247 if ((ptc
!= null) && !ptc
.CheckRecursiveDefinition (this))
1251 if (iface_exprs
!= null) {
1252 foreach (TypeExpr iface
in iface_exprs
) {
1253 Type itype
= TypeManager
.DropGenericTypeArguments (iface
.Type
);
1254 TypeContainer ptc
= TypeManager
.LookupTypeContainer (itype
);
1255 if ((ptc
!= null) && !ptc
.CheckRecursiveDefinition (this))
1260 if (!IsTopLevel
&& !Parent
.PartialContainer
.CheckRecursiveDefinition (this))
1268 /// Populates our TypeBuilder with fields and methods
1270 public override bool Define ()
1272 if (members_defined
)
1273 return members_defined_ok
;
1275 members_defined_ok
= DoDefineMembers ();
1276 members_defined
= true;
1278 return members_defined_ok
;
1281 protected virtual bool DoDefineMembers ()
1283 if (iface_exprs
!= null) {
1284 foreach (TypeExpr iface
in iface_exprs
) {
1285 ObsoleteAttribute oa
= AttributeTester
.GetObsoleteAttribute (iface
.Type
);
1286 if ((oa
!= null) && !IsInObsoleteScope
)
1287 AttributeTester
.Report_ObsoleteMessage (
1288 oa
, iface
.GetSignatureForError (), Location
);
1290 GenericTypeExpr ct
= iface
as GenericTypeExpr
;
1292 // TODO: passing `this' is wrong, should be base type iface instead
1293 TypeManager
.CheckTypeVariance (ct
.Type
, Variance
.Covariant
, this);
1295 if (!ct
.CheckConstraints (this))
1301 if (base_type
!= null) {
1302 ObsoleteAttribute obsolete_attr
= AttributeTester
.GetObsoleteAttribute (base_type
.Type
);
1303 if (obsolete_attr
!= null && !IsInObsoleteScope
)
1304 AttributeTester
.Report_ObsoleteMessage (obsolete_attr
, base_type
.GetSignatureForError (), Location
);
1306 GenericTypeExpr ct
= base_type
as GenericTypeExpr
;
1307 if ((ct
!= null) && !ct
.CheckConstraints (this))
1310 TypeContainer baseContainer
= TypeManager
.LookupTypeContainer(base_type
.Type
);
1311 if (baseContainer
!= null)
1312 baseContainer
.Define();
1314 member_cache
= new MemberCache (base_type
.Type
, this);
1315 } else if (Kind
== Kind
.Interface
) {
1316 member_cache
= new MemberCache (null, this);
1317 Type
[] ifaces
= TypeManager
.GetInterfaces (TypeBuilder
);
1318 for (int i
= 0; i
< ifaces
.Length
; ++i
)
1319 member_cache
.AddInterface (TypeManager
.LookupMemberCache (ifaces
[i
]));
1321 member_cache
= new MemberCache (null, this);
1325 foreach (TypeContainer tc
in types
)
1326 member_cache
.AddNestedType (tc
);
1328 if (delegates
!= null)
1329 foreach (Delegate d
in delegates
)
1330 member_cache
.AddNestedType (d
);
1332 if (partial_parts
!= null) {
1333 foreach (TypeContainer part
in partial_parts
)
1334 part
.member_cache
= member_cache
;
1338 MemberInfo conflict_symbol
= Parent
.PartialContainer
.FindBaseMemberWithSameName (Basename
, false);
1339 if (conflict_symbol
== null) {
1340 if ((ModFlags
& Modifiers
.NEW
) != 0)
1341 Report
.Warning (109, 4, Location
, "The member `{0}' does not hide an inherited member. The new keyword is not required", GetSignatureForError ());
1343 if ((ModFlags
& Modifiers
.NEW
) == 0) {
1344 Report
.SymbolRelatedToPreviousError (conflict_symbol
);
1345 Report
.Warning (108, 2, Location
, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
1346 GetSignatureForError (), TypeManager
.GetFullNameSignature (conflict_symbol
));
1351 DefineContainerMembers (constants
);
1352 DefineContainerMembers (fields
);
1354 if (Kind
== Kind
.Struct
|| Kind
== Kind
.Class
) {
1355 pending
= PendingImplementation
.GetPendingImplementations (this);
1357 if (requires_delayed_unmanagedtype_check
) {
1358 requires_delayed_unmanagedtype_check
= false;
1359 foreach (FieldBase f
in fields
) {
1360 if (f
.MemberType
!= null && f
.MemberType
.IsPointer
)
1361 TypeManager
.VerifyUnManaged (f
.MemberType
, f
.Location
);
1367 // Constructors are not in the defined_names array
1369 DefineContainerMembers (instance_constructors
);
1371 DefineContainerMembers (events
);
1372 DefineContainerMembers (ordered_explicit_member_list
);
1373 DefineContainerMembers (ordered_member_list
);
1375 DefineContainerMembers (operators
);
1376 DefineContainerMembers (delegates
);
1378 ComputeIndexerName();
1379 CheckEqualsAndGetHashCode();
1381 if (CurrentType
!= null) {
1382 GenericType
= CurrentType
;
1386 // FIXME: This hack is needed because member cache does not work
1387 // with generic types, we rely on runtime to inflate dynamic types.
1388 // TODO: This hack requires member cache refactoring to be removed
1390 if (TypeManager
.IsGenericType (TypeBuilder
))
1391 member_cache
= new MemberCache (this);
1396 protected virtual void DefineContainerMembers (MemberCoreArrayList mcal
)
1399 mcal
.DefineContainerMembers ();
1402 protected virtual void ComputeIndexerName ()
1404 if (indexers
== null)
1407 string class_indexer_name
= null;
1410 // If there's both an explicit and an implicit interface implementation, the
1411 // explicit one actually implements the interface while the other one is just
1412 // a normal indexer. See bug #37714.
1415 // Invariant maintained by AddIndexer(): All explicit interface indexers precede normal indexers
1416 foreach (Indexer i
in indexers
) {
1417 if (i
.InterfaceType
!= null) {
1418 if (seen_normal_indexers
)
1419 throw new Exception ("Internal Error: 'Indexers' array not sorted properly.");
1423 seen_normal_indexers
= true;
1425 if (class_indexer_name
== null) {
1426 class_indexer_name
= i
.ShortName
;
1430 if (i
.ShortName
!= class_indexer_name
)
1431 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");
1434 if (class_indexer_name
!= null)
1435 indexer_name
= class_indexer_name
;
1438 protected virtual void EmitIndexerName ()
1440 if (!seen_normal_indexers
)
1443 PredefinedAttribute pa
= PredefinedAttributes
.Get
.DefaultMember
;
1444 if (pa
.Constructor
== null &&
1445 !pa
.ResolveConstructor (Location
, TypeManager
.string_type
))
1448 CustomAttributeBuilder cb
= new CustomAttributeBuilder (pa
.Constructor
, new string [] { IndexerName }
);
1449 TypeBuilder
.SetCustomAttribute (cb
);
1452 protected virtual void CheckEqualsAndGetHashCode ()
1454 if (methods
== null)
1457 if (HasEquals
&& !HasGetHashCode
) {
1458 Report
.Warning (659, 3, this.Location
, "`{0}' overrides Object.Equals(object) but does not override Object.GetHashCode()", this.GetSignatureForError ());
1462 public MemberInfo
FindBaseMemberWithSameName (string name
, bool ignore_methods
)
1464 return BaseCache
== null ? null : BaseCache
.FindMemberWithSameName (name
, ignore_methods
, null);
1468 /// This function is based by a delegate to the FindMembers routine
1470 static bool AlwaysAccept (MemberInfo m
, object filterCriteria
)
1476 /// This filter is used by FindMembers, and we just keep
1477 /// a global for the filter to `AlwaysAccept'
1479 static MemberFilter accepting_filter
;
1482 static TypeContainer ()
1484 accepting_filter
= new MemberFilter (AlwaysAccept
);
1487 public MethodInfo
[] GetMethods ()
1489 ArrayList members
= new ArrayList ();
1493 if (methods
!= null) {
1494 int len
= methods
.Count
;
1495 for (int i
= 0; i
< len
; i
++) {
1496 Method m
= (Method
) methods
[i
];
1498 members
.Add (m
.MethodBuilder
);
1502 if (operators
!= null) {
1503 int len
= operators
.Count
;
1504 for (int i
= 0; i
< len
; i
++) {
1505 Operator o
= (Operator
) operators
[i
];
1507 members
.Add (o
.MethodBuilder
);
1511 if (properties
!= null) {
1512 int len
= properties
.Count
;
1513 for (int i
= 0; i
< len
; i
++) {
1514 Property p
= (Property
) properties
[i
];
1516 if (p
.GetBuilder
!= null)
1517 members
.Add (p
.GetBuilder
);
1518 if (p
.SetBuilder
!= null)
1519 members
.Add (p
.SetBuilder
);
1523 if (indexers
!= null) {
1524 int len
= indexers
.Count
;
1525 for (int i
= 0; i
< len
; i
++) {
1526 Indexer ix
= (Indexer
) indexers
[i
];
1528 if (ix
.GetBuilder
!= null)
1529 members
.Add (ix
.GetBuilder
);
1530 if (ix
.SetBuilder
!= null)
1531 members
.Add (ix
.SetBuilder
);
1535 if (events
!= null) {
1536 int len
= events
.Count
;
1537 for (int i
= 0; i
< len
; i
++) {
1538 Event e
= (Event
) events
[i
];
1540 if (e
.AddBuilder
!= null)
1541 members
.Add (e
.AddBuilder
);
1542 if (e
.RemoveBuilder
!= null)
1543 members
.Add (e
.RemoveBuilder
);
1547 MethodInfo
[] retMethods
= new MethodInfo
[members
.Count
];
1548 members
.CopyTo (retMethods
, 0);
1552 // Indicated whether container has StructLayout attribute set Explicit
1553 public bool HasExplicitLayout
{
1554 get { return (caching_flags & Flags.HasExplicitLayout) != 0; }
1555 set { caching_flags |= Flags.HasExplicitLayout; }
1558 public bool HasStructLayout
{
1559 get { return (caching_flags & Flags.HasStructLayout) != 0; }
1560 set { caching_flags |= Flags.HasStructLayout; }
1564 // Return the nested type with name @name. Ensures that the nested type
1565 // is defined if necessary. Do _not_ use this when you have a MemberCache handy.
1567 public Type
FindNestedType (string name
)
1569 if (PartialContainer
!= this)
1570 throw new InternalErrorException ("should not happen");
1572 ArrayList
[] lists
= { types, delegates }
;
1574 for (int j
= 0; j
< lists
.Length
; ++j
) {
1575 ArrayList list
= lists
[j
];
1579 int len
= list
.Count
;
1580 for (int i
= 0; i
< len
; ++i
) {
1581 DeclSpace ds
= (DeclSpace
) list
[i
];
1582 if (ds
.Basename
== name
) {
1583 return ds
.DefineType ();
1591 private void FindMembers_NestedTypes (int modflags
,
1592 BindingFlags bf
, MemberFilter filter
, object criteria
,
1593 ref ArrayList members
)
1595 ArrayList
[] lists
= { types, delegates }
;
1597 for (int j
= 0; j
< lists
.Length
; ++j
) {
1598 ArrayList list
= lists
[j
];
1602 int len
= list
.Count
;
1603 for (int i
= 0; i
< len
; i
++) {
1604 DeclSpace ds
= (DeclSpace
) list
[i
];
1606 if ((ds
.ModFlags
& modflags
) == 0)
1609 TypeBuilder tb
= ds
.TypeBuilder
;
1611 if (!(criteria
is string) || ds
.Basename
.Equals (criteria
))
1612 tb
= ds
.DefineType ();
1615 if (tb
!= null && (filter (tb
, criteria
) == true)) {
1616 if (members
== null)
1617 members
= new ArrayList ();
1626 /// This method returns the members of this type just like Type.FindMembers would
1627 /// Only, we need to use this for types which are _being_ defined because MS'
1628 /// implementation can't take care of that.
1631 // FIXME: return an empty static array instead of null, that cleans up
1632 // some code and is consistent with some coding conventions I just found
1636 // Notice that in various cases we check if our field is non-null,
1637 // something that would normally mean that there was a bug elsewhere.
1639 // The problem happens while we are defining p-invoke methods, as those
1640 // will trigger a FindMembers, but this happens before things are defined
1642 // Since the whole process is a no-op, it is fine to check for null here.
1644 // TODO: This approach will be one day completely removed, it's already
1645 // used at few places only
1648 public override MemberList
FindMembers (MemberTypes mt
, BindingFlags bf
,
1649 MemberFilter filter
, object criteria
)
1651 ArrayList members
= null;
1654 if ((bf
& BindingFlags
.Public
) != 0)
1655 modflags
|= Modifiers
.PUBLIC
| Modifiers
.PROTECTED
|
1657 if ((bf
& BindingFlags
.NonPublic
) != 0)
1658 modflags
|= Modifiers
.PRIVATE
;
1660 int static_mask
= 0, static_flags
= 0;
1661 switch (bf
& (BindingFlags
.Static
| BindingFlags
.Instance
)) {
1662 case BindingFlags
.Static
:
1663 static_mask
= static_flags
= Modifiers
.STATIC
;
1666 case BindingFlags
.Instance
:
1667 static_mask
= Modifiers
.STATIC
;
1672 static_mask
= static_flags
= 0;
1676 Timer
.StartTimer (TimerType
.TcFindMembers
);
1679 filter
= accepting_filter
;
1681 if ((mt
& MemberTypes
.Field
) != 0) {
1682 if (fields
!= null) {
1683 int len
= fields
.Count
;
1684 for (int i
= 0; i
< len
; i
++) {
1685 FieldBase f
= (FieldBase
) fields
[i
];
1687 if ((f
.ModFlags
& modflags
) == 0)
1689 if ((f
.ModFlags
& static_mask
) != static_flags
)
1692 FieldBuilder fb
= f
.FieldBuilder
;
1693 if (fb
!= null && filter (fb
, criteria
) == true) {
1694 if (members
== null)
1695 members
= new ArrayList ();
1702 if (constants
!= null) {
1703 int len
= constants
.Count
;
1704 for (int i
= 0; i
< len
; i
++) {
1705 Const con
= (Const
) constants
[i
];
1707 if ((con
.ModFlags
& modflags
) == 0)
1709 if ((con
.ModFlags
& static_mask
) != static_flags
)
1712 FieldBuilder fb
= con
.FieldBuilder
;
1715 fb
= con
.FieldBuilder
;
1717 if (fb
!= null && filter (fb
, criteria
) == true) {
1718 if (members
== null)
1719 members
= new ArrayList ();
1727 if ((mt
& MemberTypes
.Method
) != 0) {
1728 if (methods
!= null) {
1729 int len
= methods
.Count
;
1730 for (int i
= 0; i
< len
; i
++) {
1731 MethodOrOperator m
= (MethodOrOperator
) methods
[i
];
1733 if ((m
.ModFlags
& modflags
) == 0)
1735 if ((m
.ModFlags
& static_mask
) != static_flags
)
1738 MethodBuilder mb
= m
.MethodBuilder
;
1740 if (mb
!= null && filter (mb
, criteria
) == true) {
1741 if (members
== null)
1742 members
= new ArrayList ();
1749 if (operators
!= null) {
1750 int len
= operators
.Count
;
1751 for (int i
= 0; i
< len
; i
++) {
1752 Operator o
= (Operator
) operators
[i
];
1754 if ((o
.ModFlags
& modflags
) == 0)
1756 if ((o
.ModFlags
& static_mask
) != static_flags
)
1759 MethodBuilder ob
= o
.MethodBuilder
;
1760 if (ob
!= null && filter (ob
, criteria
) == true) {
1761 if (members
== null)
1762 members
= new ArrayList ();
1769 if (events
!= null) {
1770 foreach (Event e
in events
) {
1771 if ((e
.ModFlags
& modflags
) == 0)
1773 if ((e
.ModFlags
& static_mask
) != static_flags
)
1776 MethodBuilder b
= e
.AddBuilder
;
1777 if (b
!= null && filter (b
, criteria
)) {
1778 if (members
== null)
1779 members
= new ArrayList (4);
1784 b
= e
.RemoveBuilder
;
1785 if (b
!= null && filter (b
, criteria
)) {
1786 if (members
== null)
1787 members
= new ArrayList (4);
1794 if (properties
!= null) {
1795 int len
= properties
.Count
;
1796 for (int i
= 0; i
< len
; i
++) {
1797 Property p
= (Property
) properties
[i
];
1799 if ((p
.ModFlags
& modflags
) == 0)
1801 if ((p
.ModFlags
& static_mask
) != static_flags
)
1807 if (b
!= null && filter (b
, criteria
) == true) {
1808 if (members
== null)
1809 members
= new ArrayList ();
1815 if (b
!= null && filter (b
, criteria
) == true) {
1816 if (members
== null)
1817 members
= new ArrayList ();
1824 if (indexers
!= null) {
1825 int len
= indexers
.Count
;
1826 for (int i
= 0; i
< len
; i
++) {
1827 Indexer ix
= (Indexer
) indexers
[i
];
1829 if ((ix
.ModFlags
& modflags
) == 0)
1831 if ((ix
.ModFlags
& static_mask
) != static_flags
)
1837 if (b
!= null && filter (b
, criteria
) == true) {
1838 if (members
== null)
1839 members
= new ArrayList ();
1845 if (b
!= null && filter (b
, criteria
) == true) {
1846 if (members
== null)
1847 members
= new ArrayList ();
1855 if ((mt
& MemberTypes
.Event
) != 0) {
1856 if (events
!= null) {
1857 int len
= events
.Count
;
1858 for (int i
= 0; i
< len
; i
++) {
1859 Event e
= (Event
) events
[i
];
1861 if ((e
.ModFlags
& modflags
) == 0)
1863 if ((e
.ModFlags
& static_mask
) != static_flags
)
1866 MemberInfo eb
= e
.EventBuilder
;
1867 if (eb
!= null && filter (eb
, criteria
) == true) {
1868 if (members
== null)
1869 members
= new ArrayList ();
1871 members
.Add (e
.EventBuilder
);
1877 if ((mt
& MemberTypes
.Property
) != 0){
1878 if (properties
!= null) {
1879 int len
= properties
.Count
;
1880 for (int i
= 0; i
< len
; i
++) {
1881 Property p
= (Property
) properties
[i
];
1883 if ((p
.ModFlags
& modflags
) == 0)
1885 if ((p
.ModFlags
& static_mask
) != static_flags
)
1888 MemberInfo pb
= p
.PropertyBuilder
;
1889 if (pb
!= null && filter (pb
, criteria
) == true) {
1890 if (members
== null)
1891 members
= new ArrayList ();
1893 members
.Add (p
.PropertyBuilder
);
1898 if (indexers
!= null) {
1899 int len
= indexers
.Count
;
1900 for (int i
= 0; i
< len
; i
++) {
1901 Indexer ix
= (Indexer
) indexers
[i
];
1903 if ((ix
.ModFlags
& modflags
) == 0)
1905 if ((ix
.ModFlags
& static_mask
) != static_flags
)
1908 MemberInfo ib
= ix
.PropertyBuilder
;
1909 if (ib
!= null && filter (ib
, criteria
) == true) {
1910 if (members
== null)
1911 members
= new ArrayList ();
1913 members
.Add (ix
.PropertyBuilder
);
1919 if ((mt
& MemberTypes
.NestedType
) != 0)
1920 FindMembers_NestedTypes (modflags
, bf
, filter
, criteria
, ref members
);
1922 if ((mt
& MemberTypes
.Constructor
) != 0){
1923 if (((bf
& BindingFlags
.Instance
) != 0) && (instance_constructors
!= null)){
1924 int len
= instance_constructors
.Count
;
1925 for (int i
= 0; i
< len
; i
++) {
1926 Constructor c
= (Constructor
) instance_constructors
[i
];
1928 ConstructorBuilder cb
= c
.ConstructorBuilder
;
1929 if (cb
!= null && filter (cb
, criteria
) == true) {
1930 if (members
== null)
1931 members
= new ArrayList ();
1938 if (((bf
& BindingFlags
.Static
) != 0) && (default_static_constructor
!= null)){
1939 ConstructorBuilder cb
=
1940 default_static_constructor
.ConstructorBuilder
;
1942 if (cb
!= null && filter (cb
, criteria
) == true) {
1943 if (members
== null)
1944 members
= new ArrayList ();
1952 // Lookup members in base if requested.
1954 if ((bf
& BindingFlags
.DeclaredOnly
) == 0) {
1955 if (TypeBuilder
.BaseType
!= null) {
1956 MemberList list
= FindMembers (TypeBuilder
.BaseType
, mt
, bf
, filter
, criteria
);
1957 if (list
.Count
> 0) {
1958 if (members
== null)
1959 members
= new ArrayList ();
1961 members
.AddRange (list
);
1966 Timer
.StopTimer (TimerType
.TcFindMembers
);
1968 if (members
== null)
1969 return MemberList
.Empty
;
1971 return new MemberList (members
);
1974 public override MemberCache MemberCache
{
1976 return member_cache
;
1980 public static MemberList
FindMembers (Type t
, MemberTypes mt
, BindingFlags bf
,
1981 MemberFilter filter
, object criteria
)
1983 DeclSpace ds
= TypeManager
.LookupDeclSpace (t
);
1986 return ds
.FindMembers (mt
, bf
, filter
, criteria
);
1988 return new MemberList (t
.FindMembers (mt
, bf
, filter
, criteria
));
1992 /// Emits the values for the constants
1994 public void EmitConstants ()
1996 if (constants
!= null)
1997 foreach (Const con
in constants
)
2002 static void CheckMemberUsage (MemberCoreArrayList al
, string member_type
)
2007 foreach (MemberCore mc
in al
) {
2008 if ((mc
.ModFlags
& Modifiers
.Accessibility
) != Modifiers
.PRIVATE
)
2011 if (!mc
.IsUsed
&& (mc
.caching_flags
& Flags
.Excluded
) == 0) {
2012 Report
.Warning (169, 3, mc
.Location
, "The private {0} `{1}' is never used", member_type
, mc
.GetSignatureForError ());
2017 public virtual void VerifyMembers ()
2020 // Check for internal or private fields that were never assigned
2022 if (Report
.WarningLevel
>= 3) {
2023 CheckMemberUsage (properties
, "property");
2024 CheckMemberUsage (methods
, "method");
2025 CheckMemberUsage (constants
, "constant");
2027 if (fields
!= null){
2028 bool is_type_exposed
= Kind
== Kind
.Struct
|| IsExposedFromAssembly ();
2029 foreach (FieldBase f
in fields
) {
2030 if ((f
.ModFlags
& Modifiers
.Accessibility
) != Modifiers
.PRIVATE
) {
2031 if (is_type_exposed
)
2034 f
.SetMemberIsUsed ();
2038 if ((f
.caching_flags
& Flags
.IsAssigned
) == 0)
2039 Report
.Warning (169, 3, f
.Location
, "The private field `{0}' is never used", f
.GetSignatureForError ());
2042 const int error_code
= 414;
2044 const int error_code
= 169;
2046 Report
.Warning (error_code
, 3, f
.Location
, "The private field `{0}' is assigned but its value is never used",
2047 f
.GetSignatureForError ());
2053 // Only report 649 on level 4
2055 if (Report
.WarningLevel
< 4)
2058 if ((f
.caching_flags
& Flags
.IsAssigned
) != 0)
2062 // Don't be pendatic over serializable attributes
2064 if (f
.OptAttributes
!= null || PartialContainer
.HasStructLayout
)
2067 Constant c
= New
.Constantify (f
.MemberType
);
2068 Report
.Warning (649, 4, f
.Location
, "Field `{0}' is never assigned to, and will always have its default value `{1}'",
2069 f
.GetSignatureForError (), c
== null ? "null" : c
.AsString ());
2075 // TODO: move to ClassOrStruct
2076 void EmitConstructors ()
2078 if (instance_constructors
== null)
2081 if (TypeBuilder
.IsSubclassOf (TypeManager
.attribute_type
) && RootContext
.VerifyClsCompliance
&& IsClsComplianceRequired ()) {
2082 bool has_compliant_args
= false;
2084 foreach (Constructor c
in instance_constructors
) {
2088 catch (Exception e
) {
2089 throw new InternalErrorException (c
, e
);
2092 if (has_compliant_args
)
2095 has_compliant_args
= c
.HasCompliantArgs
;
2097 if (!has_compliant_args
)
2098 Report
.Warning (3015, 1, Location
, "`{0}' has no accessible constructors which use only CLS-compliant types", GetSignatureForError ());
2100 foreach (Constructor c
in instance_constructors
) {
2104 catch (Exception e
) {
2105 throw new InternalErrorException (c
, e
);
2112 /// Emits the code, this step is performed after all
2113 /// the types, enumerations, constructors
2115 public virtual void EmitType ()
2117 if (OptAttributes
!= null)
2118 OptAttributes
.Emit ();
2122 EmitConstructors ();
2124 // Can not continue if constants are broken
2126 if (Report
.Errors
> 0)
2129 if (default_static_constructor
!= null)
2130 default_static_constructor
.Emit ();
2132 if (operators
!= null)
2133 foreach (Operator o
in operators
)
2136 if (properties
!= null)
2137 foreach (Property p
in properties
)
2140 if (indexers
!= null) {
2141 foreach (Indexer indx
in indexers
)
2146 if (events
!= null){
2147 foreach (Event e
in Events
)
2151 if (methods
!= null) {
2152 for (int i
= 0; i
< methods
.Count
; ++i
)
2153 ((MethodOrOperator
) methods
[i
]).Emit ();
2157 foreach (FieldBase f
in fields
)
2160 if (delegates
!= null) {
2161 foreach (Delegate d
in Delegates
) {
2166 if (pending
!= null)
2167 pending
.VerifyPendingMethods ();
2169 if (Report
.Errors
> 0)
2172 if (compiler_generated
!= null) {
2173 for (int i
= 0; i
< compiler_generated
.Count
; ++i
)
2174 ((CompilerGeneratedClass
) compiler_generated
[i
]).EmitType ();
2178 public override void CloseType ()
2180 if ((caching_flags
& Flags
.CloseTypeCreated
) != 0)
2184 caching_flags
|= Flags
.CloseTypeCreated
;
2185 TypeBuilder
.CreateType ();
2186 } catch (TypeLoadException
){
2188 // This is fine, the code still created the type
2190 // Report.Warning (-20, "Exception while creating class: " + TypeBuilder.Name);
2191 // Console.WriteLine (e.Message);
2192 } catch (Exception e
) {
2193 throw new InternalErrorException (this, e
);
2197 foreach (TypeContainer tc
in Types
)
2198 if (tc
.Kind
== Kind
.Struct
)
2201 foreach (TypeContainer tc
in Types
)
2202 if (tc
.Kind
!= Kind
.Struct
)
2206 if (Delegates
!= null)
2207 foreach (Delegate d
in Delegates
)
2210 if (compiler_generated
!= null)
2211 foreach (CompilerGeneratedClass c
in compiler_generated
)
2214 PartialContainer
= null;
2219 initialized_fields
= null;
2220 initialized_static_fields
= null;
2222 ordered_explicit_member_list
= null;
2223 ordered_member_list
= null;
2228 compiler_generated
= null;
2229 default_constructor
= null;
2230 default_static_constructor
= null;
2232 OptAttributes
= null;
2235 member_cache
= null;
2239 // Performs the validation on a Method's modifiers (properties have
2240 // the same properties).
2242 public bool MethodModifiersValid (MemberCore mc
)
2244 const int vao
= (Modifiers
.VIRTUAL
| Modifiers
.ABSTRACT
| Modifiers
.OVERRIDE
);
2245 const int va
= (Modifiers
.VIRTUAL
| Modifiers
.ABSTRACT
);
2246 const int nv
= (Modifiers
.NEW
| Modifiers
.VIRTUAL
);
2248 int flags
= mc
.ModFlags
;
2251 // At most one of static, virtual or override
2253 if ((flags
& Modifiers
.STATIC
) != 0){
2254 if ((flags
& vao
) != 0){
2255 Report
.Error (112, mc
.Location
, "A static member `{0}' cannot be marked as override, virtual or abstract",
2256 mc
.GetSignatureForError ());
2261 if (Kind
== Kind
.Struct
){
2262 if ((flags
& va
) != 0){
2263 Modifiers
.Error_InvalidModifier (mc
.Location
, "virtual or abstract");
2268 if ((flags
& Modifiers
.OVERRIDE
) != 0 && (flags
& nv
) != 0){
2269 Report
.Error (113, mc
.Location
, "A member `{0}' marked as override cannot be marked as new or virtual",
2270 mc
.GetSignatureForError ());
2275 // If the declaration includes the abstract modifier, then the
2276 // declaration does not include static, virtual or extern
2278 if ((flags
& Modifiers
.ABSTRACT
) != 0){
2279 if ((flags
& Modifiers
.EXTERN
) != 0){
2281 180, mc
.Location
, "`{0}' cannot be both extern and abstract", mc
.GetSignatureForError ());
2285 if ((flags
& Modifiers
.SEALED
) != 0) {
2286 Report
.Error (502, mc
.Location
, "`{0}' cannot be both abstract and sealed", mc
.GetSignatureForError ());
2290 if ((flags
& Modifiers
.VIRTUAL
) != 0){
2291 Report
.Error (503, mc
.Location
, "The abstract method `{0}' cannot be marked virtual", mc
.GetSignatureForError ());
2295 if ((ModFlags
& Modifiers
.ABSTRACT
) == 0){
2296 Report
.SymbolRelatedToPreviousError (this);
2297 Report
.Error (513, mc
.Location
, "`{0}' is abstract but it is declared in the non-abstract class `{1}'",
2298 mc
.GetSignatureForError (), GetSignatureForError ());
2303 if ((flags
& Modifiers
.PRIVATE
) != 0){
2304 if ((flags
& vao
) != 0){
2305 Report
.Error (621, mc
.Location
, "`{0}': virtual or abstract members cannot be private", mc
.GetSignatureForError ());
2310 if ((flags
& Modifiers
.SEALED
) != 0){
2311 if ((flags
& Modifiers
.OVERRIDE
) == 0){
2312 Report
.Error (238, mc
.Location
, "`{0}' cannot be sealed because it is not an override", mc
.GetSignatureForError ());
2320 public Constructor DefaultStaticConstructor
{
2321 get { return default_static_constructor; }
2324 protected override bool VerifyClsCompliance ()
2326 if (!base.VerifyClsCompliance ())
2331 Type base_type
= TypeBuilder
.BaseType
;
2332 if (base_type
!= null && !AttributeTester
.IsClsCompliant (base_type
)) {
2333 Report
.Warning (3009, 1, Location
, "`{0}': base type `{1}' is not CLS-compliant", GetSignatureForError (), TypeManager
.CSharpName (base_type
));
2340 /// Checks whether container name is CLS Compliant
2342 void VerifyClsName ()
2344 Hashtable base_members
= base_cache
== null ?
2346 base_cache
.GetPublicMembers ();
2347 Hashtable this_members
= new Hashtable ();
2349 foreach (DictionaryEntry entry
in defined_names
) {
2350 MemberCore mc
= (MemberCore
)entry
.Value
;
2351 if (!mc
.IsClsComplianceRequired ())
2354 string name
= (string) entry
.Key
;
2355 string basename
= name
.Substring (name
.LastIndexOf ('.') + 1);
2357 string lcase
= basename
.ToLower (System
.Globalization
.CultureInfo
.InvariantCulture
);
2358 object found
= base_members
[lcase
];
2359 if (found
== null) {
2360 found
= this_members
[lcase
];
2361 if (found
== null) {
2362 this_members
.Add (lcase
, mc
);
2367 if ((mc
.ModFlags
& Modifiers
.OVERRIDE
) != 0)
2370 if (found
is MemberInfo
) {
2371 if (basename
== ((MemberInfo
) found
).Name
)
2373 Report
.SymbolRelatedToPreviousError ((MemberInfo
) found
);
2375 Report
.SymbolRelatedToPreviousError ((MemberCore
) found
);
2378 Report
.Warning (3005, 1, mc
.Location
, "Identifier `{0}' differing only in case is not CLS-compliant", mc
.GetSignatureForError ());
2384 /// Performs checks for an explicit interface implementation. First it
2385 /// checks whether the `interface_type' is a base inteface implementation.
2386 /// Then it checks whether `name' exists in the interface type.
2388 public bool VerifyImplements (InterfaceMemberBase mb
)
2390 if (ifaces
!= null) {
2391 foreach (Type t
in ifaces
){
2392 if (TypeManager
.IsEqual (t
, mb
.InterfaceType
))
2397 Report
.SymbolRelatedToPreviousError (mb
.InterfaceType
);
2398 Report
.Error (540, mb
.Location
, "`{0}': containing type does not implement interface `{1}'",
2399 mb
.GetSignatureForError (), TypeManager
.CSharpName (mb
.InterfaceType
));
2403 public override Type
LookupAnyGeneric (string typeName
)
2405 if (types
!= null) {
2406 foreach (TypeContainer tc
in types
) {
2410 int pos
= tc
.Basename
.LastIndexOf ('`');
2411 if (pos
== typeName
.Length
&& String
.Compare (typeName
, 0, tc
.Basename
, 0, pos
) == 0)
2412 return tc
.TypeBuilder
;
2416 return base.LookupAnyGeneric (typeName
);
2419 public void Mark_HasEquals ()
2421 cached_method
|= CachedMethods
.Equals
;
2424 public void Mark_HasGetHashCode ()
2426 cached_method
|= CachedMethods
.GetHashCode
;
2430 /// Method container contains Equals method
2432 public bool HasEquals
{
2434 return (cached_method
& CachedMethods
.Equals
) != 0;
2439 /// Method container contains GetHashCode method
2441 public bool HasGetHashCode
{
2443 return (cached_method
& CachedMethods
.GetHashCode
) != 0;
2447 public bool HasStaticFieldInitializer
{
2449 return (cached_method
& CachedMethods
.HasStaticFieldInitializer
) != 0;
2453 cached_method
|= CachedMethods
.HasStaticFieldInitializer
;
2455 cached_method
&= ~CachedMethods
.HasStaticFieldInitializer
;
2463 string IMemberContainer
.Name
{
2469 Type IMemberContainer
.Type
{
2475 bool IMemberContainer
.IsInterface
{
2477 return Kind
== Kind
.Interface
;
2481 MemberList IMemberContainer
.GetMembers (MemberTypes mt
, BindingFlags bf
)
2483 BindingFlags new_bf
= bf
| BindingFlags
.DeclaredOnly
;
2485 if (GenericType
!= null)
2486 return TypeManager
.FindMembers (GenericType
, mt
, new_bf
,
2489 return FindMembers (mt
, new_bf
, null, null);
2493 // Generates xml doc comments (if any), and if required,
2494 // handle warning report.
2496 internal override void GenerateDocComment (DeclSpace ds
)
2498 DocUtil
.GenerateTypeDocComment (this, ds
);
2501 public override string DocCommentHeader
{
2502 get { return "T:"; }
2505 public MemberCache BaseCache
{
2507 if (base_cache
!= null)
2509 if (TypeBuilder
.BaseType
!= null)
2510 base_cache
= TypeManager
.LookupMemberCache (TypeBuilder
.BaseType
);
2511 if (TypeBuilder
.IsInterface
)
2512 base_cache
= TypeManager
.LookupBaseInterfacesCache (TypeBuilder
);
2518 public abstract class ClassOrStruct
: TypeContainer
{
2519 ListDictionary declarative_security
;
2521 public ClassOrStruct (NamespaceEntry ns
, DeclSpace parent
,
2522 MemberName name
, Attributes attrs
, Kind kind
)
2523 : base (ns
, parent
, name
, attrs
, kind
)
2527 protected override bool AddToContainer (MemberCore symbol
, string name
)
2529 if (name
== MemberName
.Name
) {
2530 if (symbol
is TypeParameter
) {
2531 Report
.Error (694, symbol
.Location
,
2532 "Type parameter `{0}' has same name as containing type, or method",
2533 symbol
.GetSignatureForError ());
2537 InterfaceMemberBase imb
= symbol
as InterfaceMemberBase
;
2538 if (imb
== null || !imb
.IsExplicitImpl
) {
2539 Report
.SymbolRelatedToPreviousError (this);
2540 Report
.Error (542, symbol
.Location
, "`{0}': member names cannot be the same as their enclosing type",
2541 symbol
.GetSignatureForError ());
2546 return base.AddToContainer (symbol
, name
);
2549 public override void VerifyMembers ()
2551 base.VerifyMembers ();
2553 if ((events
!= null) && Report
.WarningLevel
>= 3) {
2554 foreach (Event e
in events
){
2555 // Note: The event can be assigned from same class only, so we can report
2556 // this warning for all accessibility modes
2557 if ((e
.caching_flags
& Flags
.IsUsed
) == 0)
2558 Report
.Warning (67, 3, e
.Location
, "The event `{0}' is never used", e
.GetSignatureForError ());
2563 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
2565 if (a
.IsValidSecurityAttribute ()) {
2566 if (declarative_security
== null)
2567 declarative_security
= new ListDictionary ();
2569 a
.ExtractSecurityPermissionSet (declarative_security
);
2573 if (a
.Type
== pa
.StructLayout
) {
2574 PartialContainer
.HasStructLayout
= true;
2576 if (a
.GetLayoutKindValue () == LayoutKind
.Explicit
)
2577 PartialContainer
.HasExplicitLayout
= true;
2580 base.ApplyAttributeBuilder (a
, cb
, pa
);
2584 /// Defines the default constructors
2586 protected void DefineDefaultConstructor (bool is_static
)
2588 // The default instance constructor is public
2589 // If the class is abstract, the default constructor is protected
2590 // The default static constructor is private
2594 mods
= Modifiers
.STATIC
| Modifiers
.PRIVATE
;
2596 mods
= ((ModFlags
& Modifiers
.ABSTRACT
) != 0) ? Modifiers
.PROTECTED
: Modifiers
.PUBLIC
;
2599 Constructor c
= new Constructor (this, MemberName
.Name
, mods
,
2600 null, ParametersCompiled
.EmptyReadOnlyParameters
,
2601 new GeneratedBaseInitializer (Location
),
2605 c
.Block
= new ToplevelBlock (ParametersCompiled
.EmptyReadOnlyParameters
, Location
);
2608 public override bool Define ()
2610 CheckProtectedModifier ();
2614 if (default_static_constructor
!= null)
2615 default_static_constructor
.Define ();
2620 public override void Emit ()
2622 if (default_static_constructor
== null && PartialContainer
.HasStaticFieldInitializer
) {
2623 DefineDefaultConstructor (true);
2624 default_static_constructor
.Define ();
2629 if (declarative_security
!= null) {
2630 foreach (DictionaryEntry de
in declarative_security
) {
2631 TypeBuilder
.AddDeclarativeSecurity ((SecurityAction
)de
.Key
, (PermissionSet
)de
.Value
);
2636 public override ExtensionMethodGroupExpr
LookupExtensionMethod (Type extensionType
, string name
, Location loc
)
2638 return NamespaceEntry
.LookupExtensionMethod (extensionType
, this, name
, loc
);
2641 protected override TypeAttributes TypeAttr
{
2643 if (default_static_constructor
== null)
2644 return base.TypeAttr
| TypeAttributes
.BeforeFieldInit
;
2646 return base.TypeAttr
;
2652 // TODO: should be sealed
2653 public class Class
: ClassOrStruct
{
2654 const int AllowedModifiers
=
2657 Modifiers
.PROTECTED
|
2658 Modifiers
.INTERNAL
|
2660 Modifiers
.ABSTRACT
|
2665 public const TypeAttributes StaticClassAttribute
= TypeAttributes
.Abstract
| TypeAttributes
.Sealed
;
2667 public Class (NamespaceEntry ns
, DeclSpace parent
, MemberName name
, int mod
,
2669 : base (ns
, parent
, name
, attrs
, Kind
.Class
)
2671 int accmods
= Parent
.Parent
== null ? Modifiers
.INTERNAL
: Modifiers
.PRIVATE
;
2672 this.ModFlags
= Modifiers
.Check (AllowedModifiers
, mod
, accmods
, Location
);
2674 if (IsStatic
&& RootContext
.Version
== LanguageVersion
.ISO_1
) {
2675 Report
.FeatureIsNotAvailable (Location
, "static classes");
2679 public override void AddBasesForPart (DeclSpace part
, ArrayList bases
)
2681 if (part
.Name
== "System.Object")
2682 Report
.Error (537, part
.Location
,
2683 "The class System.Object cannot have a base class or implement an interface.");
2684 base.AddBasesForPart (part
, bases
);
2687 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
2689 if (a
.Type
== pa
.AttributeUsage
) {
2690 if (!TypeManager
.IsAttributeType (BaseType
) &&
2691 TypeBuilder
.FullName
!= "System.Attribute") {
2692 Report
.Error (641, a
.Location
, "Attribute `{0}' is only valid on classes derived from System.Attribute", a
.GetSignatureForError ());
2696 if (a
.Type
== pa
.Conditional
&& !TypeManager
.IsAttributeType (BaseType
)) {
2697 Report
.Error (1689, a
.Location
, "Attribute `System.Diagnostics.ConditionalAttribute' is only valid on methods or attribute classes");
2701 if (a
.Type
== pa
.ComImport
&& !attributes
.Contains (pa
.Guid
)) {
2702 a
.Error_MissingGuidAttribute ();
2706 if (a
.Type
== pa
.Extension
) {
2707 a
.Error_MisusedExtensionAttribute ();
2711 if (AttributeTester
.IsAttributeExcluded (a
.Type
, Location
))
2714 base.ApplyAttributeBuilder (a
, cb
, pa
);
2717 public override AttributeTargets AttributeTargets
{
2719 return AttributeTargets
.Class
;
2723 protected override void DefineContainerMembers (MemberCoreArrayList list
)
2729 base.DefineContainerMembers (list
);
2733 foreach (MemberCore m
in list
) {
2734 if (m
is Operator
) {
2735 Report
.Error (715, m
.Location
, "`{0}': Static classes cannot contain user-defined operators", m
.GetSignatureForError ());
2739 if (m
is Destructor
) {
2740 Report
.Error (711, m
.Location
, "`{0}': Static classes cannot contain destructor", GetSignatureForError ());
2745 Report
.Error (720, m
.Location
, "`{0}': cannot declare indexers in a static class", m
.GetSignatureForError ());
2749 if ((m
.ModFlags
& Modifiers
.STATIC
) != 0 || m
is Enum
|| m
is Delegate
)
2752 if (m
is Constructor
) {
2753 Report
.Error (710, m
.Location
, "`{0}': Static classes cannot have instance constructors", GetSignatureForError ());
2757 Method method
= m
as Method
;
2758 if (method
!= null && method
.Parameters
.HasExtensionMethodType
) {
2759 Report
.Error (1105, m
.Location
, "`{0}': Extension methods must be declared static", m
.GetSignatureForError ());
2763 Report
.Error (708, m
.Location
, "`{0}': cannot declare instance members in a static class", m
.GetSignatureForError ());
2766 base.DefineContainerMembers (list
);
2769 public override bool Define ()
2771 if ((ModFlags
& Modifiers
.ABSTRACT
) == Modifiers
.ABSTRACT
&& (ModFlags
& (Modifiers
.SEALED
| Modifiers
.STATIC
)) != 0) {
2772 Report
.Error (418, Location
, "`{0}': an abstract class cannot be sealed or static", GetSignatureForError ());
2775 if ((ModFlags
& (Modifiers
.SEALED
| Modifiers
.STATIC
)) == (Modifiers
.SEALED
| Modifiers
.STATIC
)) {
2776 Report
.Error (441, Location
, "`{0}': a class cannot be both static and sealed", GetSignatureForError ());
2779 return base.Define ();
2782 protected override bool DoDefineMembers ()
2784 if (InstanceConstructors
== null && !IsStatic
)
2785 DefineDefaultConstructor (false);
2787 return base.DoDefineMembers ();
2790 public override void Emit ()
2794 if ((ModFlags
& Modifiers
.METHOD_EXTENSION
) != 0)
2795 PredefinedAttributes
.Get
.Extension
.EmitAttribute (TypeBuilder
);
2798 protected override TypeExpr
[] ResolveBaseTypes (out TypeExpr base_class
)
2800 TypeExpr
[] ifaces
= base.ResolveBaseTypes (out base_class
);
2802 if (base_class
== null) {
2803 if (RootContext
.StdLib
)
2804 base_class
= TypeManager
.system_object_expr
;
2805 else if (Name
!= "System.Object")
2806 base_class
= TypeManager
.system_object_expr
;
2808 if (Kind
== Kind
.Class
&& base_class
is TypeParameterExpr
){
2810 689, base_class
.Location
,
2811 "Cannot derive from `{0}' because it is a type parameter",
2812 base_class
.GetSignatureForError ());
2816 if (IsGeneric
&& TypeManager
.IsAttributeType (base_class
.Type
)) {
2817 Report
.Error (698, base_class
.Location
,
2818 "A generic type cannot derive from `{0}' because it is an attribute class",
2819 base_class
.GetSignatureForError ());
2822 if (base_class
.IsSealed
){
2823 Report
.SymbolRelatedToPreviousError (base_class
.Type
);
2824 if (base_class
.Type
.IsAbstract
) {
2825 Report
.Error (709, Location
, "`{0}': Cannot derive from static class `{1}'",
2826 GetSignatureForError (), TypeManager
.CSharpName (base_class
.Type
));
2828 Report
.Error (509, Location
, "`{0}': cannot derive from sealed type `{1}'",
2829 GetSignatureForError (), TypeManager
.CSharpName (base_class
.Type
));
2834 if (!base_class
.CanInheritFrom ()){
2835 Report
.Error (644, Location
, "`{0}' cannot derive from special class `{1}'",
2836 GetSignatureForError (), base_class
.GetSignatureForError ());
2840 if (!IsAccessibleAs (base_class
.Type
)) {
2841 Report
.SymbolRelatedToPreviousError (base_class
.Type
);
2842 Report
.Error (60, Location
, "Inconsistent accessibility: base class `{0}' is less accessible than class `{1}'",
2843 TypeManager
.CSharpName (base_class
.Type
), GetSignatureForError ());
2847 if (PartialContainer
.IsStaticClass
) {
2848 if (base_class
.Type
!= TypeManager
.object_type
) {
2849 Report
.Error (713, Location
, "Static class `{0}' cannot derive from type `{1}'. Static classes must derive from object",
2850 GetSignatureForError (), base_class
.GetSignatureForError ());
2854 if (ifaces
!= null) {
2855 foreach (TypeExpr t
in ifaces
)
2856 Report
.SymbolRelatedToPreviousError (t
.Type
);
2857 Report
.Error (714, Location
, "Static class `{0}' cannot implement interfaces", GetSignatureForError ());
2864 /// Search for at least one defined condition in ConditionalAttribute of attribute class
2865 /// Valid only for attribute classes.
2866 public bool IsExcluded ()
2868 if ((caching_flags
& Flags
.Excluded_Undetected
) == 0)
2869 return (caching_flags
& Flags
.Excluded
) != 0;
2871 caching_flags
&= ~Flags
.Excluded_Undetected
;
2873 if (OptAttributes
== null)
2876 Attribute
[] attrs
= OptAttributes
.SearchMulti (PredefinedAttributes
.Get
.Conditional
);
2880 foreach (Attribute a
in attrs
) {
2881 string condition
= a
.GetConditionalAttributeValue ();
2882 if (Location
.CompilationUnit
.IsConditionalDefined (condition
))
2886 caching_flags
|= Flags
.Excluded
;
2892 return (ModFlags
& Modifiers
.STATIC
) != 0;
2897 // FIXME: How do we deal with the user specifying a different
2900 protected override TypeAttributes TypeAttr
{
2902 TypeAttributes ta
= base.TypeAttr
| TypeAttributes
.AutoLayout
| TypeAttributes
.Class
;
2904 ta
|= StaticClassAttribute
;
2910 public sealed class Struct
: ClassOrStruct
{
2912 bool is_unmanaged
, has_unmanaged_check_done
;
2915 // Modifiers allowed in a struct declaration
2917 const int AllowedModifiers
=
2920 Modifiers
.PROTECTED
|
2921 Modifiers
.INTERNAL
|
2925 public Struct (NamespaceEntry ns
, DeclSpace parent
, MemberName name
,
2926 int mod
, Attributes attrs
)
2927 : base (ns
, parent
, name
, attrs
, Kind
.Struct
)
2931 if (parent
.Parent
== null)
2932 accmods
= Modifiers
.INTERNAL
;
2934 accmods
= Modifiers
.PRIVATE
;
2936 this.ModFlags
= Modifiers
.Check (AllowedModifiers
, mod
, accmods
, Location
);
2938 this.ModFlags
|= Modifiers
.SEALED
;
2941 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
2943 base.ApplyAttributeBuilder (a
, cb
, pa
);
2946 // When struct constains fixed fixed and struct layout has explicitly
2947 // set CharSet, its value has to be propagated to compiler generated
2948 // fixed field types
2950 if (a
.Type
== pa
.StructLayout
&& Fields
!= null && a
.HasField ("CharSet")) {
2951 for (int i
= 0; i
< Fields
.Count
; ++i
) {
2952 FixedField ff
= Fields
[i
] as FixedField
;
2954 ff
.SetCharSet (TypeBuilder
.Attributes
);
2959 public override AttributeTargets AttributeTargets
{
2961 return AttributeTargets
.Struct
;
2965 public override bool IsUnmanagedType ()
2970 if (requires_delayed_unmanagedtype_check
)
2973 if (has_unmanaged_check_done
)
2974 return is_unmanaged
;
2976 has_unmanaged_check_done
= true;
2978 foreach (FieldBase f
in fields
) {
2979 if ((f
.ModFlags
& Modifiers
.STATIC
) != 0)
2982 // It can happen when recursive unmanaged types are defined
2983 // struct S { S* s; }
2984 Type mt
= f
.MemberType
;
2986 has_unmanaged_check_done
= false;
2987 requires_delayed_unmanagedtype_check
= true;
2991 // TODO: Remove when pointer types are under mcs control
2992 while (mt
.IsPointer
)
2993 mt
= TypeManager
.GetElementType (mt
);
2994 if (TypeManager
.IsEqual (mt
, TypeBuilder
))
2997 if (TypeManager
.IsUnmanagedType (mt
))
3003 is_unmanaged
= true;
3007 protected override TypeExpr
[] ResolveBaseTypes (out TypeExpr base_class
)
3009 TypeExpr
[] ifaces
= base.ResolveBaseTypes (out base_class
);
3011 // If we are compiling our runtime,
3012 // and we are defining ValueType, then our
3013 // base is `System.Object'.
3015 if (base_class
== null) {
3016 if (!RootContext
.StdLib
&& Name
== "System.ValueType")
3017 base_class
= TypeManager
.system_object_expr
;
3019 base_class
= TypeManager
.system_valuetype_expr
;
3026 // FIXME: Allow the user to specify a different set of attributes
3027 // in some cases (Sealed for example is mandatory for a class,
3028 // but what SequentialLayout can be changed
3030 protected override TypeAttributes TypeAttr
{
3032 const TypeAttributes DefaultTypeAttributes
=
3033 TypeAttributes
.SequentialLayout
|
3034 TypeAttributes
.Sealed
;
3036 return base.TypeAttr
| DefaultTypeAttributes
;
3040 public override void RegisterFieldForInitialization (MemberCore field
, FieldInitializer expression
)
3042 if ((field
.ModFlags
& Modifiers
.STATIC
) == 0) {
3043 Report
.Error (573, field
.Location
, "`{0}': Structs cannot have instance field initializers",
3044 field
.GetSignatureForError ());
3047 base.RegisterFieldForInitialization (field
, expression
);
3055 public sealed class Interface
: TypeContainer
, IMemberContainer
{
3058 /// Modifiers allowed in a class declaration
3060 public const int AllowedModifiers
=
3063 Modifiers
.PROTECTED
|
3064 Modifiers
.INTERNAL
|
3068 public Interface (NamespaceEntry ns
, DeclSpace parent
, MemberName name
, int mod
,
3070 : base (ns
, parent
, name
, attrs
, Kind
.Interface
)
3074 if (parent
.Parent
== null)
3075 accmods
= Modifiers
.INTERNAL
;
3077 accmods
= Modifiers
.PRIVATE
;
3079 this.ModFlags
= Modifiers
.Check (AllowedModifiers
, mod
, accmods
, name
.Location
);
3082 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
3084 if (a
.Type
== pa
.ComImport
&& !attributes
.Contains (pa
.Guid
)) {
3085 a
.Error_MissingGuidAttribute ();
3089 base.ApplyAttributeBuilder (a
, cb
, pa
);
3093 public override AttributeTargets AttributeTargets
{
3095 return AttributeTargets
.Interface
;
3099 protected override TypeAttributes TypeAttr
{
3101 const TypeAttributes DefaultTypeAttributes
=
3102 TypeAttributes
.AutoLayout
|
3103 TypeAttributes
.Abstract
|
3104 TypeAttributes
.Interface
;
3106 return base.TypeAttr
| DefaultTypeAttributes
;
3110 protected override bool VerifyClsCompliance ()
3112 if (!base.VerifyClsCompliance ())
3115 if (ifaces
!= null) {
3116 foreach (Type t
in ifaces
) {
3117 if (AttributeTester
.IsClsCompliant (t
))
3120 Report
.SymbolRelatedToPreviousError (t
);
3121 Report
.Warning (3027, 1, Location
, "`{0}' is not CLS-compliant because base interface `{1}' is not CLS-compliant",
3122 GetSignatureForError (), TypeManager
.CSharpName (t
));
3130 // It is used as a base class for all property based members
3131 // This includes properties, indexers, and events
3132 public abstract class PropertyBasedMember
: InterfaceMemberBase
3134 public PropertyBasedMember (DeclSpace parent
, GenericMethod generic
,
3135 FullNamedExpression type
, int mod
, int allowed_mod
,
3136 MemberName name
, Attributes attrs
)
3137 : base (parent
, generic
, type
, mod
, allowed_mod
, name
, attrs
)
3141 protected override bool VerifyClsCompliance ()
3143 if (!base.VerifyClsCompliance ())
3146 if (!AttributeTester
.IsClsCompliant (MemberType
)) {
3147 Report
.Warning (3003, 1, Location
, "Type of `{0}' is not CLS-compliant",
3148 GetSignatureForError ());
3156 public abstract class MethodCore
: InterfaceMemberBase
3158 public readonly ParametersCompiled Parameters
;
3159 protected ToplevelBlock block
;
3161 public MethodCore (DeclSpace parent
, GenericMethod generic
,
3162 FullNamedExpression type
, int mod
, int allowed_mod
,
3163 MemberName name
, Attributes attrs
, ParametersCompiled parameters
)
3164 : base (parent
, generic
, type
, mod
, allowed_mod
, name
, attrs
)
3166 Parameters
= parameters
;
3170 // Returns the System.Type array for the parameters of this method
3172 public Type
[] ParameterTypes
{
3174 return Parameters
.Types
;
3178 public ParametersCompiled ParameterInfo
{
3184 public ToplevelBlock Block
{
3194 public CallingConventions CallingConventions
{
3196 CallingConventions cc
= Parameters
.CallingConvention
;
3198 if ((ModFlags
& Modifiers
.STATIC
) == 0)
3199 cc
|= CallingConventions
.HasThis
;
3201 // FIXME: How is `ExplicitThis' used in C#?
3207 protected override bool CheckBase ()
3209 // Check whether arguments were correct.
3210 if (!DefineParameters (Parameters
))
3213 return base.CheckBase ();
3217 // Returns a string that represents the signature for this
3218 // member which should be used in XML documentation.
3220 public override string GetDocCommentName (DeclSpace ds
)
3222 return DocUtil
.GetMethodDocCommentName (this, Parameters
, ds
);
3226 // Raised (and passed an XmlElement that contains the comment)
3227 // when GenerateDocComment is writing documentation expectedly.
3229 // FIXME: with a few effort, it could be done with XmlReader,
3230 // that means removal of DOM use.
3232 internal override void OnGenerateDocComment (XmlElement el
)
3234 DocUtil
.OnMethodGenerateDocComment (this, el
);
3238 // Represents header string for documentation comment.
3240 public override string DocCommentHeader
3242 get { return "M:"; }
3245 public override bool EnableOverloadChecks (MemberCore overload
)
3247 if (overload
is MethodCore
|| overload
is AbstractPropertyEventMethod
) {
3248 caching_flags
|= Flags
.MethodOverloadsExist
;
3252 return base.EnableOverloadChecks (overload
);
3255 protected override bool VerifyClsCompliance ()
3257 if (!base.VerifyClsCompliance ())
3260 if (Parameters
.HasArglist
) {
3261 Report
.Warning (3000, 1, Location
, "Methods with variable arguments are not CLS-compliant");
3264 if (!AttributeTester
.IsClsCompliant (MemberType
)) {
3265 Report
.Warning (3002, 1, Location
, "Return type of `{0}' is not CLS-compliant",
3266 GetSignatureForError ());
3269 Parameters
.VerifyClsCompliance ();
3275 public abstract class InterfaceMemberBase
: MemberBase
{
3277 // Whether this is an interface member.
3279 public bool IsInterface
;
3282 // If true, this is an explicit interface implementation
3284 public bool IsExplicitImpl
;
3286 protected bool is_external_implementation
;
3289 // The interface type we are explicitly implementing
3291 public Type InterfaceType
;
3294 // The method we're overriding if this is an override method.
3296 protected MethodInfo base_method
;
3298 readonly int explicit_mod_flags
;
3299 public MethodAttributes flags
;
3301 public InterfaceMemberBase (DeclSpace parent
, GenericMethod generic
,
3302 FullNamedExpression type
, int mod
, int allowed_mod
,
3303 MemberName name
, Attributes attrs
)
3304 : base (parent
, generic
, type
, mod
, allowed_mod
, Modifiers
.PRIVATE
,
3307 IsInterface
= parent
.PartialContainer
.Kind
== Kind
.Interface
;
3308 IsExplicitImpl
= (MemberName
.Left
!= null);
3309 explicit_mod_flags
= mod
;
3312 protected override bool CheckBase ()
3314 if (!base.CheckBase ())
3317 if ((caching_flags
& Flags
.MethodOverloadsExist
) != 0)
3318 CheckForDuplications ();
3323 // Is null for System.Object while compiling corlib and base interfaces
3324 if (Parent
.PartialContainer
.BaseCache
== null) {
3325 if ((ModFlags
& Modifiers
.NEW
) != 0) {
3326 Report
.Warning (109, 4, Location
, "The member `{0}' does not hide an inherited member. The new keyword is not required", GetSignatureForError ());
3331 Type base_ret_type
= null;
3332 base_method
= FindOutBaseMethod (ref base_ret_type
);
3334 // method is override
3335 if (base_method
!= null) {
3336 if (!CheckMethodAgainstBase (base_ret_type
))
3339 if ((ModFlags
& Modifiers
.OVERRIDE
) != 0) {
3340 ObsoleteAttribute oa
= AttributeTester
.GetMethodObsoleteAttribute (base_method
);
3342 if (OptAttributes
== null || !OptAttributes
.Contains (PredefinedAttributes
.Get
.Obsolete
)) {
3343 Report
.SymbolRelatedToPreviousError (base_method
);
3344 Report
.Warning (672, 1, Location
, "Member `{0}' overrides obsolete member `{1}'. Add the Obsolete attribute to `{0}'",
3345 GetSignatureForError (), TypeManager
.CSharpSignature (base_method
));
3348 if (OptAttributes
!= null && OptAttributes
.Contains (PredefinedAttributes
.Get
.Obsolete
)) {
3349 Report
.SymbolRelatedToPreviousError (base_method
);
3350 Report
.Warning (809, 1, Location
, "Obsolete member `{0}' overrides non-obsolete member `{1}'",
3351 GetSignatureForError (), TypeManager
.CSharpSignature (base_method
));
3358 MemberInfo conflict_symbol
= Parent
.PartialContainer
.FindBaseMemberWithSameName (Name
, !((this is Event
) || (this is Property
)));
3359 if ((ModFlags
& Modifiers
.OVERRIDE
) != 0) {
3360 if (conflict_symbol
!= null) {
3361 Report
.SymbolRelatedToPreviousError (conflict_symbol
);
3363 Report
.Error (72, Location
, "`{0}': cannot override because `{1}' is not an event", GetSignatureForError (), TypeManager
.GetFullNameSignature (conflict_symbol
));
3364 else if (this is PropertyBase
)
3365 Report
.Error (544, Location
, "`{0}': cannot override because `{1}' is not a property", GetSignatureForError (), TypeManager
.GetFullNameSignature (conflict_symbol
));
3367 Report
.Error (505, Location
, "`{0}': cannot override because `{1}' is not a method", GetSignatureForError (), TypeManager
.GetFullNameSignature (conflict_symbol
));
3369 Report
.Error (115, Location
, "`{0}' is marked as an override but no suitable {1} found to override",
3370 GetSignatureForError (), SimpleName
.GetMemberType (this));
3375 if (conflict_symbol
== null) {
3376 if ((ModFlags
& Modifiers
.NEW
) != 0) {
3377 Report
.Warning (109, 4, Location
, "The member `{0}' does not hide an inherited member. The new keyword is not required", GetSignatureForError ());
3382 if ((ModFlags
& Modifiers
.NEW
) == 0) {
3383 if (this is MethodOrOperator
&& conflict_symbol
.MemberType
== MemberTypes
.Method
)
3386 Report
.SymbolRelatedToPreviousError (conflict_symbol
);
3387 Report
.Warning (108, 2, Location
, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
3388 GetSignatureForError (), TypeManager
.GetFullNameSignature (conflict_symbol
));
3394 protected virtual bool CheckForDuplications ()
3396 return Parent
.MemberCache
.CheckExistingMembersOverloads (
3397 this, GetFullName (MemberName
), ParametersCompiled
.EmptyReadOnlyParameters
);
3401 // Performs various checks on the MethodInfo `mb' regarding the modifier flags
3402 // that have been defined.
3404 // `name' is the user visible name for reporting errors (this is used to
3405 // provide the right name regarding method names and properties)
3407 bool CheckMethodAgainstBase (Type base_method_type
)
3411 if ((ModFlags
& Modifiers
.OVERRIDE
) != 0){
3412 if (!(base_method
.IsAbstract
|| base_method
.IsVirtual
)){
3413 Report
.SymbolRelatedToPreviousError (base_method
);
3414 Report
.Error (506, Location
,
3415 "`{0}': cannot override inherited member `{1}' because it is not marked virtual, abstract or override",
3416 GetSignatureForError (), TypeManager
.CSharpSignature (base_method
));
3420 // Now we check that the overriden method is not final
3422 if (base_method
.IsFinal
) {
3423 Report
.SymbolRelatedToPreviousError (base_method
);
3424 Report
.Error (239, Location
, "`{0}': cannot override inherited member `{1}' because it is sealed",
3425 GetSignatureForError (), TypeManager
.CSharpSignature (base_method
));
3429 // Check that the permissions are not being changed
3431 MethodAttributes thisp
= flags
& MethodAttributes
.MemberAccessMask
;
3432 MethodAttributes base_classp
= base_method
.Attributes
& MethodAttributes
.MemberAccessMask
;
3434 if (!CheckAccessModifiers (thisp
, base_classp
, base_method
)) {
3435 Error_CannotChangeAccessModifiers (Location
, base_method
, base_classp
, null);
3439 if (!TypeManager
.IsEqual (MemberType
, TypeManager
.TypeToCoreType (base_method_type
))) {
3440 Report
.SymbolRelatedToPreviousError (base_method
);
3441 if (this is PropertyBasedMember
) {
3442 Report
.Error (1715, Location
, "`{0}': type must be `{1}' to match overridden member `{2}'",
3443 GetSignatureForError (), TypeManager
.CSharpName (base_method_type
), TypeManager
.CSharpSignature (base_method
));
3446 Report
.Error (508, Location
, "`{0}': return type must be `{1}' to match overridden member `{2}'",
3447 GetSignatureForError (), TypeManager
.CSharpName (base_method_type
), TypeManager
.CSharpSignature (base_method
));
3453 if ((ModFlags
& Modifiers
.NEW
) == 0) {
3454 if ((ModFlags
& Modifiers
.OVERRIDE
) == 0) {
3455 ModFlags
|= Modifiers
.NEW
;
3456 Report
.SymbolRelatedToPreviousError (base_method
);
3457 if (!IsInterface
&& (base_method
.IsVirtual
|| base_method
.IsAbstract
)) {
3458 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",
3459 GetSignatureForError (), TypeManager
.CSharpSignature (base_method
));
3461 Report
.Warning (108, 2, Location
, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
3462 GetSignatureForError (), TypeManager
.CSharpSignature (base_method
));
3466 if (base_method
.IsAbstract
&& !IsInterface
) {
3467 Report
.SymbolRelatedToPreviousError (base_method
);
3468 Report
.Error (533, Location
, "`{0}' hides inherited abstract member `{1}'",
3469 GetSignatureForError (), TypeManager
.CSharpSignature (base_method
));
3477 protected bool CheckAccessModifiers (MethodAttributes thisp
, MethodAttributes base_classp
, MethodInfo base_method
)
3479 if ((base_classp
& MethodAttributes
.FamORAssem
) == MethodAttributes
.FamORAssem
){
3481 // when overriding protected internal, the method can be declared
3482 // protected internal only within the same assembly or assembly
3483 // which has InternalsVisibleTo
3485 if ((thisp
& MethodAttributes
.FamORAssem
) == MethodAttributes
.FamORAssem
){
3486 return TypeManager
.IsThisOrFriendAssembly (base_method
.DeclaringType
.Assembly
);
3487 } else if ((thisp
& MethodAttributes
.Family
) != MethodAttributes
.Family
) {
3489 // if it's not "protected internal", it must be "protected"
3493 } else if (Parent
.TypeBuilder
.Assembly
== base_method
.DeclaringType
.Assembly
) {
3495 // protected within the same assembly - an error
3498 } else if ((thisp
& ~
(MethodAttributes
.Family
| MethodAttributes
.FamORAssem
)) !=
3499 (base_classp
& ~
(MethodAttributes
.Family
| MethodAttributes
.FamORAssem
))) {
3501 // protected ok, but other attributes differ - report an error
3507 return (thisp
== base_classp
);
3511 public override bool Define ()
3514 ModFlags
= Modifiers
.PUBLIC
| Modifiers
.ABSTRACT
|
3515 Modifiers
.VIRTUAL
| (ModFlags
& (Modifiers
.UNSAFE
| Modifiers
.NEW
));
3517 flags
= MethodAttributes
.Public
|
3518 MethodAttributes
.Abstract
|
3519 MethodAttributes
.HideBySig
|
3520 MethodAttributes
.NewSlot
|
3521 MethodAttributes
.Virtual
;
3523 Parent
.PartialContainer
.MethodModifiersValid (this);
3525 flags
= Modifiers
.MethodAttr (ModFlags
);
3528 if (IsExplicitImpl
) {
3529 TypeExpr iface_texpr
= MemberName
.Left
.GetTypeExpression ().ResolveAsTypeTerminal (this, false);
3530 if (iface_texpr
== null)
3533 if ((ModFlags
& Modifiers
.PARTIAL
) != 0) {
3534 Report
.Error (754, Location
, "A partial method `{0}' cannot explicitly implement an interface",
3535 GetSignatureForError ());
3538 InterfaceType
= iface_texpr
.Type
;
3540 if (!InterfaceType
.IsInterface
) {
3541 Report
.SymbolRelatedToPreviousError (InterfaceType
);
3542 Report
.Error (538, Location
, "The type `{0}' in explicit interface declaration is not an interface",
3543 TypeManager
.CSharpName (InterfaceType
));
3545 Parent
.PartialContainer
.VerifyImplements (this);
3548 Modifiers
.Check (Modifiers
.AllowedExplicitImplFlags
, explicit_mod_flags
, 0, Location
);
3551 return base.Define ();
3554 protected bool DefineParameters (ParametersCompiled parameters
)
3556 IResolveContext rc
= GenericMethod
== null ? this : (IResolveContext
)ds
;
3558 if (!parameters
.Resolve (rc
))
3562 for (int i
= 0; i
< parameters
.Count
; ++i
) {
3563 Parameter p
= parameters
[i
];
3565 if (p
.HasDefaultValue
&& (IsExplicitImpl
|| this is Operator
|| (this is Indexer
&& parameters
.Count
== 1)))
3566 p
.Warning_UselessOptionalParameter ();
3568 if (p
.CheckAccessibility (this))
3571 Type t
= parameters
.Types
[i
];
3572 Report
.SymbolRelatedToPreviousError (t
);
3573 if (this is Indexer
)
3574 Report
.Error (55, Location
,
3575 "Inconsistent accessibility: parameter type `{0}' is less accessible than indexer `{1}'",
3576 TypeManager
.CSharpName (t
), GetSignatureForError ());
3577 else if (this is Operator
)
3578 Report
.Error (57, Location
,
3579 "Inconsistent accessibility: parameter type `{0}' is less accessible than operator `{1}'",
3580 TypeManager
.CSharpName (t
), GetSignatureForError ());
3582 Report
.Error (51, Location
,
3583 "Inconsistent accessibility: parameter type `{0}' is less accessible than method `{1}'",
3584 TypeManager
.CSharpName (t
), GetSignatureForError ());
3590 public override void Emit()
3592 // for extern static method must be specified either DllImport attribute or MethodImplAttribute.
3593 // We are more strict than csc and report this as an error because SRE does not allow emit that
3594 if ((ModFlags
& Modifiers
.EXTERN
) != 0 && !is_external_implementation
) {
3595 if (this is Constructor
) {
3596 Report
.Error (824, Location
,
3597 "Constructor `{0}' is marked `external' but has no external implementation specified", GetSignatureForError ());
3599 Report
.Error (626, Location
,
3600 "`{0}' is marked as an external but has no DllImport attribute. Consider adding a DllImport attribute to specify the external implementation",
3601 GetSignatureForError ());
3608 public override bool EnableOverloadChecks (MemberCore overload
)
3611 // Two members can differ in their explicit interface
3612 // type parameter only
3614 InterfaceMemberBase imb
= overload
as InterfaceMemberBase
;
3615 if (imb
!= null && imb
.IsExplicitImpl
) {
3616 if (IsExplicitImpl
) {
3617 caching_flags
|= Flags
.MethodOverloadsExist
;
3622 return IsExplicitImpl
;
3625 protected void Error_CannotChangeAccessModifiers (Location loc
, MemberInfo base_method
, MethodAttributes ma
, string suffix
)
3627 Report
.SymbolRelatedToPreviousError (base_method
);
3628 string base_name
= TypeManager
.GetFullNameSignature (base_method
);
3629 string this_name
= GetSignatureForError ();
3630 if (suffix
!= null) {
3631 base_name
+= suffix
;
3632 this_name
+= suffix
;
3635 Report
.Error (507, loc
, "`{0}': cannot change access modifiers when overriding `{1}' inherited member `{2}'",
3636 this_name
, Modifiers
.GetDescription (ma
), base_name
);
3639 protected static string Error722
{
3641 return "`{0}': static types cannot be used as return types";
3646 /// Gets base method and its return type
3648 protected abstract MethodInfo
FindOutBaseMethod (ref Type base_ret_type
);
3651 // The "short" name of this property / indexer / event. This is the
3652 // name without the explicit interface.
3654 public string ShortName
3656 get { return MemberName.Name; }
3657 set { SetMemberName (new MemberName (MemberName.Left, value, Location)); }
3661 // Returns full metadata method name
3663 public string GetFullName (MemberName name
)
3665 if (!IsExplicitImpl
)
3669 // When dealing with explicit members a full interface type
3670 // name is added to member name to avoid possible name conflicts
3672 // We use CSharpName which gets us full name with benefit of
3673 // replacing predefined names which saves some space and name
3676 return TypeManager
.CSharpName (InterfaceType
) + "." + name
.Name
;
3679 protected override bool VerifyClsCompliance ()
3681 if (!base.VerifyClsCompliance ()) {
3682 if (IsInterface
&& HasClsCompliantAttribute
&& Parent
.IsClsComplianceRequired ()) {
3683 Report
.Warning (3010, 1, Location
, "`{0}': CLS-compliant interfaces must have only CLS-compliant members", GetSignatureForError ());
3686 if ((ModFlags
& Modifiers
.ABSTRACT
) != 0 && Parent
.TypeBuilder
.IsClass
&& IsExposedFromAssembly () && Parent
.IsClsComplianceRequired ()) {
3687 Report
.Warning (3011, 1, Location
, "`{0}': only CLS-compliant members can be abstract", GetSignatureForError ());
3692 if (GenericMethod
!= null)
3693 GenericMethod
.VerifyClsCompliance ();
3698 public override bool IsUsed
3700 get { return IsExplicitImpl || base.IsUsed; }
3705 public abstract class MethodOrOperator
: MethodCore
, IMethodData
3707 public MethodBuilder MethodBuilder
;
3708 ReturnParameter return_attributes
;
3709 ListDictionary declarative_security
;
3710 protected MethodData MethodData
;
3712 static string[] attribute_targets
= new string [] { "method", "return" }
;
3714 protected MethodOrOperator (DeclSpace parent
, GenericMethod generic
, FullNamedExpression type
, int mod
,
3715 int allowed_mod
, MemberName name
,
3716 Attributes attrs
, ParametersCompiled parameters
)
3717 : base (parent
, generic
, type
, mod
, allowed_mod
, name
,
3722 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
3724 if (a
.Target
== AttributeTargets
.ReturnValue
) {
3725 if (return_attributes
== null)
3726 return_attributes
= new ReturnParameter (MethodBuilder
, Location
);
3728 return_attributes
.ApplyAttributeBuilder (a
, cb
, pa
);
3732 if (a
.IsInternalMethodImplAttribute
) {
3733 is_external_implementation
= true;
3736 if (a
.Type
== pa
.DllImport
) {
3737 const int extern_static
= Modifiers
.EXTERN
| Modifiers
.STATIC
;
3738 if ((ModFlags
& extern_static
) != extern_static
) {
3739 Report
.Error (601, a
.Location
, "The DllImport attribute must be specified on a method marked `static' and `extern'");
3741 is_external_implementation
= true;
3744 if (a
.IsValidSecurityAttribute ()) {
3745 if (declarative_security
== null)
3746 declarative_security
= new ListDictionary ();
3747 a
.ExtractSecurityPermissionSet (declarative_security
);
3751 if (MethodBuilder
!= null)
3752 MethodBuilder
.SetCustomAttribute (cb
);
3755 public override AttributeTargets AttributeTargets
{
3757 return AttributeTargets
.Method
;
3761 protected override bool CheckForDuplications ()
3763 string name
= GetFullName (MemberName
);
3764 if (MemberName
.IsGeneric
)
3765 name
= MemberName
.MakeName (name
, MemberName
.TypeArguments
);
3767 return Parent
.MemberCache
.CheckExistingMembersOverloads (this, name
, Parameters
);
3770 public virtual EmitContext
CreateEmitContext (DeclSpace tc
, ILGenerator ig
)
3772 return new EmitContext (
3773 this, tc
, this.ds
, Location
, ig
, MemberType
, ModFlags
, false);
3776 protected override bool ResolveMemberType ()
3779 if (GenericMethod
!= null) {
3780 MethodBuilder
= Parent
.TypeBuilder
.DefineMethod (GetFullName (MemberName
), flags
);
3781 if (!GenericMethod
.Define (this))
3786 return base.ResolveMemberType ();
3789 public override bool Define ()
3791 if (!base.Define ())
3797 if (block
!= null && block
.IsIterator
&& !(Parent
is IteratorStorey
)) {
3799 // Current method is turned into automatically generated
3800 // wrapper which creates an instance of iterator
3802 Iterator
.CreateIterator (this, Parent
.PartialContainer
, ModFlags
);
3803 ModFlags
|= Modifiers
.DEBUGGER_HIDDEN
;
3806 if (IsPartialDefinition
) {
3807 caching_flags
&= ~Flags
.Excluded_Undetected
;
3808 caching_flags
|= Flags
.Excluded
;
3809 // Add to member cache only when a partial method implementation is not there
3810 if ((caching_flags
& Flags
.MethodOverloadsExist
) == 0) {
3811 MethodBase mb
= new PartialMethodDefinitionInfo (this);
3812 Parent
.MemberCache
.AddMember (mb
, this);
3813 TypeManager
.AddMethod (mb
, this);
3819 MethodData
= new MethodData (
3820 this, ModFlags
, flags
, this, MethodBuilder
, GenericMethod
, base_method
);
3822 if (!MethodData
.Define (Parent
.PartialContainer
, GetFullName (MemberName
)))
3825 MethodBuilder
= MethodData
.MethodBuilder
;
3827 if (TypeManager
.IsGenericMethod (MethodBuilder
))
3828 Parent
.MemberCache
.AddGenericMember (MethodBuilder
, this);
3830 Parent
.MemberCache
.AddMember (MethodBuilder
, this);
3835 protected override void DoMemberTypeIndependentChecks ()
3837 base.DoMemberTypeIndependentChecks ();
3839 CheckAbstractAndExtern (block
!= null);
3841 if ((ModFlags
& Modifiers
.PARTIAL
) != 0) {
3842 for (int i
= 0; i
< Parameters
.Count
; ++i
) {
3843 IParameterData p
= Parameters
.FixedParameters
[i
];
3844 if (p
.ModFlags
== Parameter
.Modifier
.OUT
) {
3845 Report
.Error (752, Location
, "`{0}': A partial method parameters cannot use `out' modifier",
3846 GetSignatureForError ());
3849 if (p
.HasDefaultValue
&& IsPartialImplementation
)
3850 ((Parameter
) p
).Warning_UselessOptionalParameter ();
3855 protected override void DoMemberTypeDependentChecks ()
3857 base.DoMemberTypeDependentChecks ();
3859 if (!TypeManager
.IsGenericParameter (MemberType
)) {
3860 if (MemberType
.IsAbstract
&& MemberType
.IsSealed
) {
3861 Report
.Error (722, Location
, Error722
, TypeManager
.CSharpName (MemberType
));
3866 public override void Emit ()
3868 if ((ModFlags
& Modifiers
.COMPILER_GENERATED
) != 0 && !Parent
.IsCompilerGenerated
)
3869 PredefinedAttributes
.Get
.CompilerGenerated
.EmitAttribute (MethodBuilder
);
3870 if ((ModFlags
& Modifiers
.DEBUGGER_HIDDEN
) != 0)
3871 PredefinedAttributes
.Get
.DebuggerHidden
.EmitAttribute (MethodBuilder
);
3873 if (OptAttributes
!= null)
3874 OptAttributes
.Emit ();
3876 if (declarative_security
!= null) {
3877 foreach (DictionaryEntry de
in declarative_security
) {
3878 MethodBuilder
.AddDeclarativeSecurity ((SecurityAction
)de
.Key
, (PermissionSet
)de
.Value
);
3882 if (MethodData
!= null)
3883 MethodData
.Emit (Parent
);
3891 protected void Error_ConditionalAttributeIsNotValid ()
3893 Report
.Error (577, Location
,
3894 "Conditional not valid on `{0}' because it is a constructor, destructor, operator or explicit interface implementation",
3895 GetSignatureForError ());
3898 public bool IsPartialDefinition
{
3900 return (ModFlags
& Modifiers
.PARTIAL
) != 0 && Block
== null;
3904 public bool IsPartialImplementation
{
3906 return (ModFlags
& Modifiers
.PARTIAL
) != 0 && Block
!= null;
3910 public override string[] ValidAttributeTargets
{
3912 return attribute_targets
;
3916 #region IMethodData Members
3918 public Type ReturnType
{
3924 public MemberName MethodName
{
3931 /// Returns true if method has conditional attribute and the conditions is not defined (method is excluded).
3933 public bool IsExcluded () {
3934 if ((caching_flags
& Flags
.Excluded_Undetected
) == 0)
3935 return (caching_flags
& Flags
.Excluded
) != 0;
3937 caching_flags
&= ~Flags
.Excluded_Undetected
;
3939 if (base_method
== null) {
3940 if (OptAttributes
== null)
3943 Attribute
[] attrs
= OptAttributes
.SearchMulti (PredefinedAttributes
.Get
.Conditional
);
3948 foreach (Attribute a
in attrs
) {
3949 string condition
= a
.GetConditionalAttributeValue ();
3950 if (condition
== null)
3953 if (Location
.CompilationUnit
.IsConditionalDefined (condition
))
3957 caching_flags
|= Flags
.Excluded
;
3961 IMethodData md
= TypeManager
.GetMethod (TypeManager
.DropGenericMethodArguments (base_method
));
3963 if (AttributeTester
.IsConditionalMethodExcluded (base_method
, Location
)) {
3964 caching_flags
|= Flags
.Excluded
;
3970 if (md
.IsExcluded ()) {
3971 caching_flags
|= Flags
.Excluded
;
3977 GenericMethod IMethodData
.GenericMethod
{
3979 return GenericMethod
;
3983 public virtual void EmitExtraSymbolInfo (SourceMethod source
)
3990 public class SourceMethod
: IMethodDef
3993 SourceMethodBuilder builder
;
3995 protected SourceMethod (DeclSpace parent
, MethodBase method
, ICompileUnit file
)
3997 this.method
= method
;
3999 builder
= SymbolWriter
.OpenMethod (file
, parent
.NamespaceEntry
.SymbolFileID
, this);
4002 public string Name
{
4003 get { return method.Name; }
4008 if (method
is MethodBuilder
)
4009 return ((MethodBuilder
) method
).GetToken ().Token
;
4010 else if (method
is ConstructorBuilder
)
4011 return ((ConstructorBuilder
) method
).GetToken ().Token
;
4013 throw new NotSupportedException ();
4017 public void CloseMethod ()
4019 SymbolWriter
.CloseMethod ();
4022 public void SetRealMethodName (string name
)
4024 if (builder
!= null)
4025 builder
.SetRealMethodName (name
);
4028 public static SourceMethod
Create (DeclSpace parent
, MethodBase method
, Block block
)
4030 if (!SymbolWriter
.HasSymbolWriter
)
4035 Location start_loc
= block
.StartLocation
;
4036 if (start_loc
.IsNull
)
4039 ICompileUnit compile_unit
= start_loc
.CompilationUnit
;
4040 if (compile_unit
== null)
4043 return new SourceMethod (parent
, method
, compile_unit
);
4047 public class Method
: MethodOrOperator
{
4050 /// Modifiers allowed in a class declaration
4052 const int AllowedModifiers
=
4055 Modifiers
.PROTECTED
|
4056 Modifiers
.INTERNAL
|
4061 Modifiers
.OVERRIDE
|
4062 Modifiers
.ABSTRACT
|
4066 const int AllowedInterfaceModifiers
=
4067 Modifiers
.NEW
| Modifiers
.UNSAFE
;
4069 public Method (DeclSpace parent
, GenericMethod generic
,
4070 FullNamedExpression return_type
, int mod
,
4071 MemberName name
, ParametersCompiled parameters
, Attributes attrs
)
4072 : base (parent
, generic
, return_type
, mod
,
4073 parent
.PartialContainer
.Kind
== Kind
.Interface
? AllowedInterfaceModifiers
: AllowedModifiers
,
4074 name
, attrs
, parameters
)
4078 protected Method (DeclSpace parent
, FullNamedExpression return_type
, int mod
, int amod
,
4079 MemberName name
, ParametersCompiled parameters
, Attributes attrs
)
4080 : base (parent
, null, return_type
, mod
, amod
, name
, attrs
, parameters
)
4084 public override string GetSignatureForError()
4086 return base.GetSignatureForError () + Parameters
.GetSignatureForError ();
4089 static void Error_DuplicateEntryPoint (Method b
)
4091 Report
.Error (17, b
.Location
,
4092 "Program `{0}' has more than one entry point defined: `{1}'",
4093 CodeGen
.FileName
, b
.GetSignatureForError ());
4096 bool IsEntryPoint ()
4098 if (ReturnType
!= TypeManager
.void_type
&&
4099 ReturnType
!= TypeManager
.int32_type
)
4102 if (Parameters
.Count
== 0)
4105 if (Parameters
.Count
> 1)
4108 Type t
= Parameters
.Types
[0];
4109 return t
.IsArray
&& t
.GetArrayRank () == 1 &&
4110 TypeManager
.GetElementType (t
) == TypeManager
.string_type
&&
4111 (Parameters
[0].ModFlags
& ~Parameter
.Modifier
.PARAMS
) == Parameter
.Modifier
.NONE
;
4114 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
4116 if (a
.Type
== pa
.Conditional
) {
4117 if (IsExplicitImpl
) {
4118 Error_ConditionalAttributeIsNotValid ();
4122 if (ReturnType
!= TypeManager
.void_type
) {
4123 Report
.Error (578, Location
, "Conditional not valid on `{0}' because its return type is not void", GetSignatureForError ());
4127 if ((ModFlags
& Modifiers
.OVERRIDE
) != 0) {
4128 Report
.Error (243, Location
, "Conditional not valid on `{0}' because it is an override method", GetSignatureForError ());
4133 Report
.Error (582, Location
, "Conditional not valid on interface members");
4137 if (MethodData
.implementing
!= null) {
4138 Report
.SymbolRelatedToPreviousError (MethodData
.implementing
.DeclaringType
);
4139 Report
.Error (629, Location
, "Conditional member `{0}' cannot implement interface member `{1}'",
4140 GetSignatureForError (), TypeManager
.CSharpSignature (MethodData
.implementing
));
4144 for (int i
= 0; i
< Parameters
.Count
; ++i
) {
4145 if (Parameters
.FixedParameters
[i
].ModFlags
== Parameter
.Modifier
.OUT
) {
4146 Report
.Error (685, Location
, "Conditional method `{0}' cannot have an out parameter", GetSignatureForError ());
4152 if (a
.Type
== pa
.Extension
) {
4153 a
.Error_MisusedExtensionAttribute ();
4157 base.ApplyAttributeBuilder (a
, cb
, pa
);
4160 protected override bool CheckForDuplications ()
4162 if (!base.CheckForDuplications ())
4165 ArrayList ar
= Parent
.PartialContainer
.Properties
;
4167 for (int i
= 0; i
< ar
.Count
; ++i
) {
4168 PropertyBase pb
= (PropertyBase
) ar
[i
];
4169 if (pb
.AreAccessorsDuplicateImplementation (this))
4174 ar
= Parent
.PartialContainer
.Indexers
;
4176 for (int i
= 0; i
< ar
.Count
; ++i
) {
4177 PropertyBase pb
= (PropertyBase
) ar
[i
];
4178 if (pb
.AreAccessorsDuplicateImplementation (this))
4186 protected override bool CheckBase ()
4188 if (!base.CheckBase ())
4191 if (base_method
!= null && (ModFlags
& Modifiers
.OVERRIDE
) != 0 && Name
== Destructor
.MetadataName
) {
4192 Report
.Error (249, Location
, "Do not override `{0}'. Use destructor syntax instead",
4193 TypeManager
.CSharpSignature (base_method
));
4202 public override bool Define ()
4204 if (type_name
== TypeManager
.system_void_expr
&& Parameters
.IsEmpty
&& Name
== Destructor
.MetadataName
) {
4205 Report
.Warning (465, 1, Location
, "Introducing `Finalize' method can interfere with destructor invocation. Did you intend to declare a destructor?");
4208 if (!base.Define ())
4211 if (RootContext
.StdLib
&& TypeManager
.IsSpecialType (ReturnType
)) {
4212 Error1599 (Location
, ReturnType
);
4216 if (base_method
!= null && (ModFlags
& Modifiers
.NEW
) == 0) {
4217 if (Parameters
.Count
== 1 && ParameterTypes
[0] == TypeManager
.object_type
&& Name
== "Equals")
4218 Parent
.PartialContainer
.Mark_HasEquals ();
4219 else if (Parameters
.IsEmpty
&& Name
== "GetHashCode")
4220 Parent
.PartialContainer
.Mark_HasGetHashCode ();
4223 if ((ModFlags
& Modifiers
.STATIC
) == 0)
4226 if (Parameters
.HasExtensionMethodType
) {
4227 if (Parent
.PartialContainer
.IsStaticClass
&& !Parent
.IsGeneric
) {
4228 if (!Parent
.IsTopLevel
)
4229 Report
.Error (1109, Location
, "`{0}': Extension methods cannot be defined in a nested class",
4230 GetSignatureForError ());
4232 PredefinedAttribute pa
= PredefinedAttributes
.Get
.Extension
;
4233 if (!pa
.IsDefined
) {
4234 Report
.Error (1110, Location
,
4235 "`{0}': Extension methods cannot be declared without a reference to System.Core.dll assembly. Add the assembly reference or remove `this' modifer from the first parameter",
4236 GetSignatureForError ());
4239 ModFlags
|= Modifiers
.METHOD_EXTENSION
;
4240 Parent
.PartialContainer
.ModFlags
|= Modifiers
.METHOD_EXTENSION
;
4241 CodeGen
.Assembly
.HasExtensionMethods
= true;
4243 Report
.Error (1106, Location
, "`{0}': Extension methods must be defined in a non-generic static class",
4244 GetSignatureForError ());
4249 // This is used to track the Entry Point,
4251 if (RootContext
.NeedsEntryPoint
&&
4253 (RootContext
.MainClass
== null ||
4254 RootContext
.MainClass
== Parent
.TypeBuilder
.FullName
)){
4255 if (IsEntryPoint ()) {
4257 if (RootContext
.EntryPoint
== null) {
4258 if (Parent
.IsGeneric
|| MemberName
.IsGeneric
) {
4259 Report
.Warning (402, 4, Location
, "`{0}': an entry point cannot be generic or in a generic type",
4260 GetSignatureForError ());
4263 RootContext
.EntryPoint
= this;
4266 Error_DuplicateEntryPoint (RootContext
.EntryPoint
);
4267 Error_DuplicateEntryPoint (this);
4270 Report
.Warning (28, 4, Location
, "`{0}' has the wrong signature to be an entry point",
4271 GetSignatureForError ());
4281 public override void Emit ()
4284 Report
.Debug (64, "METHOD EMIT", this, MethodBuilder
, Location
, Block
, MethodData
);
4285 if (IsPartialDefinition
) {
4287 // Do attribute checks only when partial implementation does not exist
4289 if (MethodBuilder
== null)
4295 if ((ModFlags
& Modifiers
.PARTIAL
) != 0 && (caching_flags
& Flags
.PartialDefinitionExists
) == 0)
4296 Report
.Error (759, Location
, "A partial method `{0}' implementation is missing a partial method declaration",
4297 GetSignatureForError ());
4301 if ((ModFlags
& Modifiers
.METHOD_EXTENSION
) != 0)
4302 PredefinedAttributes
.Get
.Extension
.EmitAttribute (MethodBuilder
);
4304 Console
.WriteLine ("Internal compiler error at {0}: exception caught while emitting {1}",
4305 Location
, MethodBuilder
);
4310 public override bool EnableOverloadChecks (MemberCore overload
)
4312 // TODO: It can be deleted when members will be defined in correct order
4313 if (overload
is Operator
)
4314 return overload
.EnableOverloadChecks (this);
4316 if (overload
is Indexer
)
4319 return base.EnableOverloadChecks (overload
);
4322 public static void Error1599 (Location loc
, Type t
)
4324 Report
.Error (1599, loc
, "Method or delegate cannot return type `{0}'", TypeManager
.CSharpName (t
));
4327 protected override MethodInfo
FindOutBaseMethod (ref Type base_ret_type
)
4329 MethodInfo mi
= (MethodInfo
) Parent
.PartialContainer
.BaseCache
.FindMemberToOverride (
4330 Parent
.TypeBuilder
, Name
, Parameters
, GenericMethod
, false);
4335 if (mi
.IsSpecialName
)
4338 base_ret_type
= TypeManager
.TypeToCoreType (mi
.ReturnType
);
4342 public void SetPartialDefinition (Method methodDefinition
)
4344 caching_flags
|= Flags
.PartialDefinitionExists
;
4345 methodDefinition
.MethodBuilder
= MethodBuilder
;
4347 for (int i
= 0; i
< methodDefinition
.Parameters
.Count
; ++i
) {
4348 Parameters
[i
].DefaultValue
= methodDefinition
.Parameters
[i
].DefaultValue
;
4351 if (methodDefinition
.attributes
== null)
4354 if (attributes
== null) {
4355 attributes
= methodDefinition
.attributes
;
4357 attributes
.Attrs
.AddRange (methodDefinition
.attributes
.Attrs
);
4361 protected override bool VerifyClsCompliance ()
4363 if (!base.VerifyClsCompliance ())
4366 if (!Parameters
.IsEmpty
) {
4367 ArrayList al
= (ArrayList
)Parent
.PartialContainer
.MemberCache
.Members
[Name
];
4369 MemberCache
.VerifyClsParameterConflict (al
, this, MethodBuilder
);
4376 public abstract class ConstructorInitializer
: ExpressionStatement
4378 Arguments argument_list
;
4379 MethodGroupExpr base_constructor_group
;
4381 public ConstructorInitializer (Arguments argument_list
, Location loc
)
4383 this.argument_list
= argument_list
;
4387 public Arguments Arguments
{
4389 return argument_list
;
4393 public override Expression
CreateExpressionTree (EmitContext ec
)
4395 throw new NotSupportedException ("ET");
4398 public bool Resolve (ConstructorBuilder caller_builder
, EmitContext ec
)
4400 if (argument_list
!= null){
4401 argument_list
.Resolve (ec
);
4404 if (this is ConstructorBaseInitializer
) {
4405 if (ec
.ContainerType
.BaseType
== null)
4408 type
= ec
.ContainerType
.BaseType
;
4409 if (TypeManager
.IsStruct (ec
.ContainerType
)) {
4410 Report
.Error (522, loc
,
4411 "`{0}': Struct constructors cannot call base constructors", TypeManager
.CSharpSignature (caller_builder
));
4416 // It is legal to have "this" initializers that take no arguments
4417 // in structs, they are just no-ops.
4419 // struct D { public D (int a) : this () {}
4421 if (TypeManager
.IsStruct (ec
.ContainerType
) && argument_list
== null)
4424 type
= ec
.ContainerType
;
4427 base_constructor_group
= MemberLookupFinal (
4428 ec
, null, type
, ConstructorBuilder
.ConstructorName
, MemberTypes
.Constructor
,
4429 BindingFlags
.Public
| BindingFlags
.Instance
| BindingFlags
.DeclaredOnly
,
4430 loc
) as MethodGroupExpr
;
4432 if (base_constructor_group
== null)
4435 base_constructor_group
= base_constructor_group
.OverloadResolve (
4436 ec
, ref argument_list
, false, loc
);
4438 if (base_constructor_group
== null)
4441 ConstructorInfo base_ctor
= (ConstructorInfo
)base_constructor_group
;
4443 if (base_ctor
== caller_builder
){
4444 Report
.Error (516, loc
, "Constructor `{0}' cannot call itself", TypeManager
.CSharpSignature (caller_builder
));
4450 public override Expression
DoResolve (EmitContext ec
)
4452 throw new NotSupportedException ();
4455 public override void Emit (EmitContext ec
)
4457 // It can be null for static initializers
4458 if (base_constructor_group
== null)
4463 base_constructor_group
.InstanceExpression
= ec
.GetThis (loc
);
4465 base_constructor_group
.EmitCall (ec
, argument_list
);
4468 public override void EmitStatement (EmitContext ec
)
4474 public class ConstructorBaseInitializer
: ConstructorInitializer
{
4475 public ConstructorBaseInitializer (Arguments argument_list
, Location l
) :
4476 base (argument_list
, l
)
4481 class GeneratedBaseInitializer
: ConstructorBaseInitializer
{
4482 public GeneratedBaseInitializer (Location loc
):
4488 public class ConstructorThisInitializer
: ConstructorInitializer
{
4489 public ConstructorThisInitializer (Arguments argument_list
, Location l
) :
4490 base (argument_list
, l
)
4495 public class Constructor
: MethodCore
, IMethodData
{
4496 public ConstructorBuilder ConstructorBuilder
;
4497 public ConstructorInitializer Initializer
;
4498 ListDictionary declarative_security
;
4499 bool has_compliant_args
;
4502 // Modifiers allowed for a constructor.
4504 public const int AllowedModifiers
=
4506 Modifiers
.PROTECTED
|
4507 Modifiers
.INTERNAL
|
4513 static readonly string[] attribute_targets
= new string [] { "method" }
;
4516 // The spec claims that static is not permitted, but
4517 // my very own code has static constructors.
4519 public Constructor (DeclSpace parent
, string name
, int mod
, Attributes attrs
, ParametersCompiled args
,
4520 ConstructorInitializer init
, Location loc
)
4521 : base (parent
, null, null, mod
, AllowedModifiers
,
4522 new MemberName (name
, loc
), attrs
, args
)
4527 public bool HasCompliantArgs
{
4528 get { return has_compliant_args; }
4531 public override AttributeTargets AttributeTargets
{
4532 get { return AttributeTargets.Constructor; }
4536 // Returns true if this is a default constructor
4538 public bool IsDefault ()
4540 if ((ModFlags
& Modifiers
.STATIC
) != 0)
4541 return Parameters
.IsEmpty
;
4543 return Parameters
.IsEmpty
&&
4544 (Initializer
is ConstructorBaseInitializer
) &&
4545 (Initializer
.Arguments
== null);
4548 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
4550 if (a
.IsValidSecurityAttribute ()) {
4551 if (declarative_security
== null) {
4552 declarative_security
= new ListDictionary ();
4554 a
.ExtractSecurityPermissionSet (declarative_security
);
4558 if (a
.IsInternalMethodImplAttribute
) {
4559 is_external_implementation
= true;
4562 ConstructorBuilder
.SetCustomAttribute (cb
);
4565 protected override bool CheckBase ()
4567 if ((ModFlags
& Modifiers
.STATIC
) != 0) {
4568 if (!Parameters
.IsEmpty
) {
4569 Report
.Error (132, Location
, "`{0}': The static constructor must be parameterless",
4570 GetSignatureForError ());
4574 // the rest can be ignored
4578 // Check whether arguments were correct.
4579 if (!DefineParameters (Parameters
))
4582 if ((caching_flags
& Flags
.MethodOverloadsExist
) != 0)
4583 Parent
.MemberCache
.CheckExistingMembersOverloads (this, ConstructorInfo
.ConstructorName
,
4586 if (Parent
.PartialContainer
.Kind
== Kind
.Struct
) {
4587 if (Parameters
.Count
== 0) {
4588 Report
.Error (568, Location
,
4589 "Structs cannot contain explicit parameterless constructors");
4594 CheckProtectedModifier ();
4600 // Creates the ConstructorBuilder
4602 public override bool Define ()
4604 if (ConstructorBuilder
!= null)
4607 MethodAttributes ca
= (MethodAttributes
.RTSpecialName
|
4608 MethodAttributes
.SpecialName
);
4610 if ((ModFlags
& Modifiers
.STATIC
) != 0) {
4611 ca
|= MethodAttributes
.Static
| MethodAttributes
.Private
;
4613 ca
|= MethodAttributes
.HideBySig
;
4615 if ((ModFlags
& Modifiers
.PUBLIC
) != 0)
4616 ca
|= MethodAttributes
.Public
;
4617 else if ((ModFlags
& Modifiers
.PROTECTED
) != 0){
4618 if ((ModFlags
& Modifiers
.INTERNAL
) != 0)
4619 ca
|= MethodAttributes
.FamORAssem
;
4621 ca
|= MethodAttributes
.Family
;
4622 } else if ((ModFlags
& Modifiers
.INTERNAL
) != 0)
4623 ca
|= MethodAttributes
.Assembly
;
4625 ca
|= MethodAttributes
.Private
;
4628 if (!CheckAbstractAndExtern (block
!= null))
4631 // Check if arguments were correct.
4635 ConstructorBuilder
= Parent
.TypeBuilder
.DefineConstructor (
4636 ca
, CallingConventions
,
4637 Parameters
.GetEmitTypes ());
4639 if (Parent
.PartialContainer
.IsComImport
) {
4640 if (!IsDefault ()) {
4641 Report
.Error (669, Location
, "`{0}': A class with the ComImport attribute cannot have a user-defined constructor",
4642 Parent
.GetSignatureForError ());
4644 ConstructorBuilder
.SetImplementationFlags (MethodImplAttributes
.InternalCall
);
4647 Parent
.MemberCache
.AddMember (ConstructorBuilder
, this);
4648 TypeManager
.AddMethod (ConstructorBuilder
, this);
4650 // It's here only to report an error
4651 if (block
!= null && block
.IsIterator
) {
4652 member_type
= TypeManager
.void_type
;
4653 Iterator
.CreateIterator (this, Parent
.PartialContainer
, ModFlags
);
4662 public override void Emit ()
4664 if ((ModFlags
& Modifiers
.DEBUGGER_HIDDEN
) != 0)
4665 PredefinedAttributes
.Get
.DebuggerHidden
.EmitAttribute (ConstructorBuilder
);
4667 if (OptAttributes
!= null)
4668 OptAttributes
.Emit ();
4672 EmitContext ec
= CreateEmitContext (null, null);
4675 // If we use a "this (...)" constructor initializer, then
4676 // do not emit field initializers, they are initialized in the other constructor
4678 bool emit_field_initializers
= ((ModFlags
& Modifiers
.STATIC
) != 0) ||
4679 !(Initializer
is ConstructorThisInitializer
);
4681 if (emit_field_initializers
)
4682 Parent
.PartialContainer
.ResolveFieldInitializers (ec
);
4684 if (block
!= null) {
4685 // If this is a non-static `struct' constructor and doesn't have any
4686 // initializer, it must initialize all of the struct's fields.
4687 if ((Parent
.PartialContainer
.Kind
== Kind
.Struct
) &&
4688 ((ModFlags
& Modifiers
.STATIC
) == 0) && (Initializer
== null))
4689 block
.AddThisVariable (Parent
, Location
);
4691 if (!block
.ResolveMeta (ec
, Parameters
))
4694 if (block
!= null && (ModFlags
& Modifiers
.STATIC
) == 0){
4695 if (Parent
.PartialContainer
.Kind
== Kind
.Class
&& Initializer
== null)
4696 Initializer
= new GeneratedBaseInitializer (Location
);
4699 // Spec mandates that Initializers will not have `this' access
4701 if (Initializer
!= null) {
4703 Initializer
.Resolve (ConstructorBuilder
, ec
);
4704 ec
.IsStatic
= false;
4705 block
.AddScopeStatement (new StatementExpression (Initializer
));
4710 Parameters
.ApplyAttributes (ConstructorBuilder
);
4712 SourceMethod source
= null;
4714 ec
.OmitDebuggingInfo
= true;
4716 source
= SourceMethod
.Create (Parent
, ConstructorBuilder
, block
);
4718 bool unreachable
= false;
4719 if (block
!= null) {
4720 if (!ec
.ResolveTopBlock (null, block
, Parameters
, this, out unreachable
))
4723 ec
.EmitMeta (block
);
4725 if (Report
.Errors
> 0)
4728 ec
.EmitResolvedTopBlock (block
, unreachable
);
4732 source
.CloseMethod ();
4734 if (declarative_security
!= null) {
4735 foreach (DictionaryEntry de
in declarative_security
) {
4736 ConstructorBuilder
.AddDeclarativeSecurity ((SecurityAction
)de
.Key
, (PermissionSet
)de
.Value
);
4743 // Is never override
4744 protected override MethodInfo
FindOutBaseMethod (ref Type base_ret_type
)
4749 public override string GetSignatureForError()
4751 return base.GetSignatureForError () + Parameters
.GetSignatureForError ();
4754 public override string[] ValidAttributeTargets
{
4756 return attribute_targets
;
4760 protected override bool VerifyClsCompliance ()
4762 if (!base.VerifyClsCompliance () || !IsExposedFromAssembly ()) {
4766 if (!Parameters
.IsEmpty
) {
4767 ArrayList al
= (ArrayList
)Parent
.MemberCache
.Members
[ConstructorInfo
.ConstructorName
];
4769 MemberCache
.VerifyClsParameterConflict (al
, this, ConstructorBuilder
);
4771 if (TypeManager
.IsSubclassOf (Parent
.TypeBuilder
, TypeManager
.attribute_type
)) {
4772 foreach (Type param
in Parameters
.Types
) {
4773 if (param
.IsArray
) {
4779 has_compliant_args
= true;
4783 #region IMethodData Members
4785 public MemberName MethodName
{
4791 public Type ReturnType
{
4797 public EmitContext
CreateEmitContext (DeclSpace ds
, ILGenerator ig
)
4799 ILGenerator ig_
= ConstructorBuilder
.GetILGenerator ();
4800 EmitContext ec
= new EmitContext (this, Parent
, Location
, ig_
, TypeManager
.void_type
, ModFlags
, true);
4801 ec
.CurrentBlock
= block
;
4805 public bool IsExcluded()
4810 GenericMethod IMethodData
.GenericMethod
{
4816 void IMethodData
.EmitExtraSymbolInfo (SourceMethod source
)
4823 /// Interface for MethodData class. Holds links to parent members to avoid member duplication.
4825 public interface IMethodData
4827 CallingConventions CallingConventions { get; }
4828 Location Location { get; }
4829 MemberName MethodName { get; }
4830 Type ReturnType { get; }
4831 GenericMethod GenericMethod { get; }
4832 ParametersCompiled ParameterInfo { get; }
4834 Attributes OptAttributes { get; }
4835 ToplevelBlock Block { get; set; }
4837 EmitContext
CreateEmitContext (DeclSpace ds
, ILGenerator ig
);
4838 ObsoleteAttribute
GetObsoleteAttribute ();
4839 string GetSignatureForError ();
4841 bool IsClsComplianceRequired ();
4842 void SetMemberIsUsed ();
4843 void EmitExtraSymbolInfo (SourceMethod source
);
4847 // Encapsulates most of the Method's state
4849 public class MethodData
{
4850 static FieldInfo methodbuilder_attrs_field
;
4851 public readonly IMethodData method
;
4853 public readonly GenericMethod GenericMethod
;
4856 // Are we implementing an interface ?
4858 public MethodInfo implementing
;
4863 protected InterfaceMemberBase member
;
4864 protected int modifiers
;
4865 protected MethodAttributes flags
;
4866 protected Type declaring_type
;
4867 protected MethodInfo parent_method
;
4869 MethodBuilder builder
= null;
4870 public MethodBuilder MethodBuilder
{
4876 public Type DeclaringType
{
4878 return declaring_type
;
4882 public MethodData (InterfaceMemberBase member
,
4883 int modifiers
, MethodAttributes flags
, IMethodData method
)
4885 this.member
= member
;
4886 this.modifiers
= modifiers
;
4889 this.method
= method
;
4892 public MethodData (InterfaceMemberBase member
,
4893 int modifiers
, MethodAttributes flags
,
4894 IMethodData method
, MethodBuilder builder
,
4895 GenericMethod generic
, MethodInfo parent_method
)
4896 : this (member
, modifiers
, flags
, method
)
4898 this.builder
= builder
;
4899 this.GenericMethod
= generic
;
4900 this.parent_method
= parent_method
;
4903 public bool Define (DeclSpace parent
, string method_full_name
)
4905 string name
= method
.MethodName
.Basename
;
4907 TypeContainer container
= parent
.PartialContainer
;
4909 PendingImplementation pending
= container
.PendingImplementations
;
4910 if (pending
!= null){
4911 implementing
= pending
.IsInterfaceMethod (name
, member
.InterfaceType
, this);
4913 if (member
.InterfaceType
!= null){
4914 if (implementing
== null){
4915 if (member
is PropertyBase
) {
4916 Report
.Error (550, method
.Location
, "`{0}' is an accessor not found in interface member `{1}{2}'",
4917 method
.GetSignatureForError (), TypeManager
.CSharpName (member
.InterfaceType
),
4918 member
.GetSignatureForError ().Substring (member
.GetSignatureForError ().LastIndexOf ('.')));
4921 Report
.Error (539, method
.Location
,
4922 "`{0}.{1}' in explicit interface declaration is not a member of interface",
4923 TypeManager
.CSharpName (member
.InterfaceType
), member
.ShortName
);
4927 if (implementing
.IsSpecialName
&& !(method
is AbstractPropertyEventMethod
)) {
4928 Report
.SymbolRelatedToPreviousError (implementing
);
4929 Report
.Error (683, method
.Location
, "`{0}' explicit method implementation cannot implement `{1}' because it is an accessor",
4930 member
.GetSignatureForError (), TypeManager
.CSharpSignature (implementing
));
4934 if (implementing
!= null) {
4935 AbstractPropertyEventMethod prop_method
= method
as AbstractPropertyEventMethod
;
4936 if (prop_method
== null) {
4937 if (TypeManager
.IsSpecialMethod (implementing
)) {
4938 Report
.SymbolRelatedToPreviousError (implementing
);
4939 Report
.Error (470, method
.Location
, "Method `{0}' cannot implement interface accessor `{1}.{2}'",
4940 method
.GetSignatureForError (), TypeManager
.CSharpSignature (implementing
),
4941 implementing
.Name
.StartsWith ("get_") ? "get" : "set");
4943 } else if (implementing
.DeclaringType
.IsInterface
) {
4944 if (!implementing
.IsSpecialName
) {
4945 Report
.SymbolRelatedToPreviousError (implementing
);
4946 Report
.Error (686, method
.Location
, "Accessor `{0}' cannot implement interface member `{1}' for type `{2}'. Use an explicit interface implementation",
4947 method
.GetSignatureForError (), TypeManager
.CSharpSignature (implementing
), container
.GetSignatureForError ());
4950 PropertyBase
.PropertyMethod pm
= prop_method
as PropertyBase
.PropertyMethod
;
4951 if (pm
!= null && pm
.HasCustomAccessModifier
&& (pm
.ModFlags
& Modifiers
.PUBLIC
) == 0) {
4952 Report
.SymbolRelatedToPreviousError (implementing
);
4953 Report
.Error (277, method
.Location
, "Accessor `{0}' must be declared public to implement interface member `{1}'",
4954 method
.GetSignatureForError (), TypeManager
.CSharpSignature (implementing
, true));
4963 // For implicit implementations, make sure we are public, for
4964 // explicit implementations, make sure we are private.
4966 if (implementing
!= null){
4968 // Setting null inside this block will trigger a more
4969 // verbose error reporting for missing interface implementations
4971 // The "candidate" function has been flagged already
4972 // but it wont get cleared
4974 if (member
.IsExplicitImpl
){
4975 if (method
.ParameterInfo
.HasParams
&& !TypeManager
.GetParameterData (implementing
).HasParams
) {
4976 Report
.SymbolRelatedToPreviousError (implementing
);
4977 Report
.Error (466, method
.Location
, "`{0}': the explicit interface implementation cannot introduce the params modifier",
4978 method
.GetSignatureForError ());
4982 if (implementing
.DeclaringType
.IsInterface
) {
4984 // If this is an interface method implementation,
4985 // check for public accessibility
4987 if ((flags
& MethodAttributes
.MemberAccessMask
) != MethodAttributes
.Public
)
4989 implementing
= null;
4991 } else if ((flags
& MethodAttributes
.MemberAccessMask
) == MethodAttributes
.Private
){
4992 // We may never be private.
4993 implementing
= null;
4995 } else if ((modifiers
& Modifiers
.OVERRIDE
) == 0){
4997 // We may be protected if we're overriding something.
4999 implementing
= null;
5004 // Static is not allowed
5006 if ((modifiers
& Modifiers
.STATIC
) != 0){
5007 implementing
= null;
5012 // If implementing is still valid, set flags
5014 if (implementing
!= null){
5016 // When implementing interface methods, set NewSlot
5017 // unless, we are overwriting a method.
5019 if (implementing
.DeclaringType
.IsInterface
){
5020 if ((modifiers
& Modifiers
.OVERRIDE
) == 0)
5021 flags
|= MethodAttributes
.NewSlot
;
5024 MethodAttributes
.Virtual
|
5025 MethodAttributes
.HideBySig
;
5027 // Set Final unless we're virtual, abstract or already overriding a method.
5028 if ((modifiers
& (Modifiers
.VIRTUAL
| Modifiers
.ABSTRACT
| Modifiers
.OVERRIDE
)) == 0)
5029 flags
|= MethodAttributes
.Final
;
5032 DefineMethodBuilder (container
, method_full_name
, method
.ParameterInfo
);
5034 if (builder
== null)
5037 if (container
.CurrentType
!= null)
5038 declaring_type
= container
.CurrentType
;
5040 declaring_type
= container
.TypeBuilder
;
5042 if (implementing
!= null && member
.IsExplicitImpl
) {
5043 container
.TypeBuilder
.DefineMethodOverride (builder
, implementing
);
5046 TypeManager
.AddMethod (builder
, method
);
5048 if (GenericMethod
!= null) {
5049 bool is_override
= member
.IsExplicitImpl
|
5050 ((modifiers
& Modifiers
.OVERRIDE
) != 0);
5052 if (implementing
!= null)
5053 parent_method
= implementing
;
5055 EmitContext ec
= method
.CreateEmitContext (container
, null);
5056 if (!GenericMethod
.DefineType (ec
, builder
, parent_method
, is_override
))
5065 /// Create the MethodBuilder for the method
5067 void DefineMethodBuilder (TypeContainer container
, string method_name
, ParametersCompiled param
)
5069 if (builder
== null) {
5070 builder
= container
.TypeBuilder
.DefineMethod (
5071 method_name
, flags
, method
.CallingConventions
,
5072 TypeManager
.TypeToReflectionType (method
.ReturnType
),
5073 param
.GetEmitTypes ());
5079 // Generic method has been already defined to resolve method parameters
5080 // correctly when they use type parameters
5082 builder
.SetParameters (param
.GetEmitTypes ());
5083 builder
.SetReturnType (method
.ReturnType
);
5085 if (builder
.Attributes
!= flags
) {
5087 if (methodbuilder_attrs_field
== null)
5088 methodbuilder_attrs_field
= typeof (MethodBuilder
).GetField ("attrs", BindingFlags
.NonPublic
| BindingFlags
.Instance
);
5089 methodbuilder_attrs_field
.SetValue (builder
, flags
);
5091 Report
.RuntimeMissingSupport (method
.Location
, "Generic method MethodAttributes");
5099 public void Emit (DeclSpace parent
)
5101 ToplevelBlock block
= method
.Block
;
5105 ec
= method
.CreateEmitContext (parent
, builder
.GetILGenerator ());
5107 ec
= method
.CreateEmitContext (parent
, null);
5109 method
.ParameterInfo
.ApplyAttributes (MethodBuilder
);
5111 if (GenericMethod
!= null)
5112 GenericMethod
.EmitAttributes ();
5115 // clear the pending implementation flag
5117 if (implementing
!= null)
5118 parent
.PartialContainer
.PendingImplementations
.ImplementMethod (method
.MethodName
.Basename
,
5119 member
.InterfaceType
, this, member
.IsExplicitImpl
);
5121 SourceMethod source
= SourceMethod
.Create (parent
, MethodBuilder
, method
.Block
);
5123 ec
.EmitTopBlock (method
, block
);
5125 if (source
!= null) {
5126 method
.EmitExtraSymbolInfo (source
);
5127 source
.CloseMethod ();
5132 public class Destructor
: MethodOrOperator
5134 const int AllowedModifiers
=
5138 static readonly string[] attribute_targets
= new string [] { "method" }
;
5140 public static readonly string MetadataName
= "Finalize";
5142 public Destructor (DeclSpace parent
, int mod
, ParametersCompiled parameters
, Attributes attrs
, Location l
)
5143 : base (parent
, null, TypeManager
.system_void_expr
, mod
, AllowedModifiers
,
5144 new MemberName (MetadataName
, l
), attrs
, parameters
)
5146 ModFlags
&= ~Modifiers
.PRIVATE
;
5147 ModFlags
|= Modifiers
.PROTECTED
;
5150 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
5152 if (a
.Type
== pa
.Conditional
) {
5153 Error_ConditionalAttributeIsNotValid ();
5157 base.ApplyAttributeBuilder (a
, cb
, pa
);
5160 protected override bool CheckBase ()
5162 flags
|= MethodAttributes
.Virtual
;
5164 if (!base.CheckBase ())
5167 if (Parent
.PartialContainer
.BaseCache
== null)
5170 Type base_type
= Parent
.PartialContainer
.BaseCache
.Container
.Type
;
5171 if (base_type
!= null && Block
!= null) {
5172 MethodGroupExpr method_expr
= Expression
.MethodLookup (Parent
.TypeBuilder
, base_type
, MetadataName
, Location
);
5173 if (method_expr
== null)
5174 throw new NotImplementedException ();
5176 method_expr
.IsBase
= true;
5177 method_expr
.InstanceExpression
= new CompilerGeneratedThis (Parent
.TypeBuilder
, Location
);
5179 ToplevelBlock new_block
= new ToplevelBlock (Block
.StartLocation
);
5180 new_block
.EndLocation
= Block
.EndLocation
;
5182 Block finaly_block
= new ExplicitBlock (new_block
, Location
, Location
);
5183 Block try_block
= new Block (new_block
, block
);
5186 // 0-size arguments to avoid CS0250 error
5187 // TODO: Should use AddScopeStatement or something else which emits correct
5190 finaly_block
.AddStatement (new StatementExpression (new Invocation (method_expr
, new Arguments (0))));
5191 new_block
.AddStatement (new TryFinally (try_block
, finaly_block
, Location
));
5199 public override string GetSignatureForError ()
5201 return Parent
.GetSignatureForError () + ".~" + Parent
.MemberName
.Name
+ "()";
5204 protected override MethodInfo
FindOutBaseMethod (ref Type base_ret_type
)
5209 public override string[] ValidAttributeTargets
{
5211 return attribute_targets
;
5216 public abstract class MemberBase
: MemberCore
5218 protected FullNamedExpression type_name
;
5219 protected Type member_type
;
5221 public readonly DeclSpace ds
;
5222 public readonly GenericMethod GenericMethod
;
5224 protected MemberBase (DeclSpace parent
, GenericMethod generic
,
5225 FullNamedExpression type
, int mod
, int allowed_mod
, int def_mod
,
5226 MemberName name
, Attributes attrs
)
5227 : base (parent
, name
, attrs
)
5229 this.ds
= generic
!= null ? generic
: (DeclSpace
) parent
;
5230 this.type_name
= type
;
5231 ModFlags
= Modifiers
.Check (allowed_mod
, mod
, def_mod
, Location
);
5232 GenericMethod
= generic
;
5233 if (GenericMethod
!= null)
5234 GenericMethod
.ModFlags
= ModFlags
;
5238 // Main member define entry
5240 public override bool Define ()
5242 DoMemberTypeIndependentChecks ();
5245 // Returns false only when type resolution failed
5247 if (!ResolveMemberType ())
5250 DoMemberTypeDependentChecks ();
5255 // Any type_name independent checks
5257 protected virtual void DoMemberTypeIndependentChecks ()
5259 if ((Parent
.ModFlags
& Modifiers
.SEALED
) != 0 &&
5260 (ModFlags
& (Modifiers
.VIRTUAL
| Modifiers
.ABSTRACT
)) != 0) {
5261 Report
.Error (549, Location
, "New virtual member `{0}' is declared in a sealed class `{1}'",
5262 GetSignatureForError (), Parent
.GetSignatureForError ());
5267 // Any type_name dependent checks
5269 protected virtual void DoMemberTypeDependentChecks ()
5271 // verify accessibility
5272 if (!IsAccessibleAs (MemberType
)) {
5273 Report
.SymbolRelatedToPreviousError (MemberType
);
5274 if (this is Property
)
5275 Report
.Error (53, Location
,
5276 "Inconsistent accessibility: property type `" +
5277 TypeManager
.CSharpName (MemberType
) + "' is less " +
5278 "accessible than property `" + GetSignatureForError () + "'");
5279 else if (this is Indexer
)
5280 Report
.Error (54, Location
,
5281 "Inconsistent accessibility: indexer return type `" +
5282 TypeManager
.CSharpName (MemberType
) + "' is less " +
5283 "accessible than indexer `" + GetSignatureForError () + "'");
5284 else if (this is MethodCore
) {
5285 if (this is Operator
)
5286 Report
.Error (56, Location
,
5287 "Inconsistent accessibility: return type `" +
5288 TypeManager
.CSharpName (MemberType
) + "' is less " +
5289 "accessible than operator `" + GetSignatureForError () + "'");
5291 Report
.Error (50, Location
,
5292 "Inconsistent accessibility: return type `" +
5293 TypeManager
.CSharpName (MemberType
) + "' is less " +
5294 "accessible than method `" + GetSignatureForError () + "'");
5296 Report
.Error (52, Location
,
5297 "Inconsistent accessibility: field type `" +
5298 TypeManager
.CSharpName (MemberType
) + "' is less " +
5299 "accessible than field `" + GetSignatureForError () + "'");
5303 Variance variance
= this is Event
? Variance
.Contravariant
: Variance
.Covariant
;
5304 TypeManager
.CheckTypeVariance (MemberType
, variance
, this);
5307 protected bool IsTypePermitted ()
5309 if (TypeManager
.IsSpecialType (MemberType
)) {
5310 Report
.Error (610, Location
, "Field or property cannot be of type `{0}'", TypeManager
.CSharpName (MemberType
));
5316 protected virtual bool CheckBase ()
5318 CheckProtectedModifier ();
5323 public Type MemberType
{
5324 get { return member_type; }
5327 protected virtual bool ResolveMemberType ()
5329 if (member_type
!= null)
5330 throw new InternalErrorException ("Multi-resolve");
5332 IResolveContext rc
= GenericMethod
== null ? this : (IResolveContext
) ds
;
5333 TypeExpr te
= type_name
.ResolveAsTypeTerminal (rc
, false);
5338 // Replace original type name, error reporting can use fully resolved name
5342 member_type
= te
.Type
;
5348 // Abstract class for all fields
5350 abstract public class FieldBase
: MemberBase
{
5351 public FieldBuilder FieldBuilder
;
5352 public Status status
;
5353 protected Expression initializer
;
5356 public enum Status
: byte {
5357 HAS_OFFSET
= 4 // Used by FieldMember.
5360 static readonly string[] attribute_targets
= new string [] { "field" }
;
5362 protected FieldBase (DeclSpace parent
, FullNamedExpression type
, int mod
,
5363 int allowed_mod
, MemberName name
, Attributes attrs
)
5364 : base (parent
, null, type
, mod
, allowed_mod
| Modifiers
.ABSTRACT
, Modifiers
.PRIVATE
,
5367 if ((mod
& Modifiers
.ABSTRACT
) != 0)
5368 Report
.Error (681, Location
, "The modifier 'abstract' is not valid on fields. Try using a property instead");
5371 public override AttributeTargets AttributeTargets
{
5373 return AttributeTargets
.Field
;
5377 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
5379 if (a
.Type
== pa
.FieldOffset
) {
5380 status
|= Status
.HAS_OFFSET
;
5382 if (!Parent
.PartialContainer
.HasExplicitLayout
) {
5383 Report
.Error (636, Location
, "The FieldOffset attribute can only be placed on members of types marked with the StructLayout(LayoutKind.Explicit)");
5387 if ((ModFlags
& Modifiers
.STATIC
) != 0 || this is Const
) {
5388 Report
.Error (637, Location
, "The FieldOffset attribute is not allowed on static or const fields");
5394 if (a
.Type
== pa
.FixedBuffer
) {
5395 Report
.Error (1716, Location
, "Do not use 'System.Runtime.CompilerServices.FixedBuffer' attribute. Use the 'fixed' field modifier instead");
5401 if (a
.Type
== pa
.MarshalAs
) {
5402 UnmanagedMarshal marshal
= a
.GetMarshal (this);
5403 if (marshal
!= null) {
5404 FieldBuilder
.SetMarshal (marshal
);
5409 if ((a
.HasSecurityAttribute
)) {
5410 a
.Error_InvalidSecurityParent ();
5414 FieldBuilder
.SetCustomAttribute (cb
);
5417 protected override bool CheckBase ()
5419 if (!base.CheckBase ())
5422 MemberInfo conflict_symbol
= Parent
.PartialContainer
.FindBaseMemberWithSameName (Name
, false);
5423 if (conflict_symbol
== null) {
5424 if ((ModFlags
& Modifiers
.NEW
) != 0) {
5425 Report
.Warning (109, 4, Location
, "The member `{0}' does not hide an inherited member. The new keyword is not required", GetSignatureForError ());
5430 if ((ModFlags
& (Modifiers
.NEW
| Modifiers
.OVERRIDE
| Modifiers
.BACKING_FIELD
)) == 0) {
5431 Report
.SymbolRelatedToPreviousError (conflict_symbol
);
5432 Report
.Warning (108, 2, Location
, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
5433 GetSignatureForError (), TypeManager
.GetFullNameSignature (conflict_symbol
));
5439 protected override void DoMemberTypeDependentChecks ()
5441 base.DoMemberTypeDependentChecks ();
5443 if (TypeManager
.IsGenericParameter (MemberType
))
5446 if (MemberType
.IsSealed
&& MemberType
.IsAbstract
) {
5447 Error_VariableOfStaticClass (Location
, GetSignatureForError (), MemberType
);
5455 // Represents header string for documentation comment.
5457 public override string DocCommentHeader
{
5458 get { return "F:"; }
5461 public override void Emit ()
5463 if ((ModFlags
& Modifiers
.COMPILER_GENERATED
) != 0 && !Parent
.IsCompilerGenerated
)
5464 PredefinedAttributes
.Get
.CompilerGenerated
.EmitAttribute (FieldBuilder
);
5466 if (OptAttributes
!= null) {
5467 OptAttributes
.Emit ();
5470 if (((status
& Status
.HAS_OFFSET
) == 0) && (ModFlags
& (Modifiers
.STATIC
| Modifiers
.BACKING_FIELD
)) == 0 && Parent
.PartialContainer
.HasExplicitLayout
) {
5471 Report
.Error (625, Location
, "`{0}': Instance field types marked with StructLayout(LayoutKind.Explicit) must have a FieldOffset attribute", GetSignatureForError ());
5477 public static void Error_VariableOfStaticClass (Location loc
, string variable_name
, Type static_class
)
5479 Report
.SymbolRelatedToPreviousError (static_class
);
5480 Report
.Error (723, loc
, "`{0}': cannot declare variables of static types",
5484 public Expression Initializer
{
5486 if (value != null) {
5487 this.initializer
= value;
5492 protected virtual bool IsFieldClsCompliant
{
5494 if (FieldBuilder
== null)
5497 return AttributeTester
.IsClsCompliant (FieldBuilder
.FieldType
);
5501 public override string[] ValidAttributeTargets
5504 return attribute_targets
;
5508 protected override bool VerifyClsCompliance ()
5510 if (!base.VerifyClsCompliance ())
5513 if (!IsFieldClsCompliant
) {
5514 Report
.Warning (3003, 1, Location
, "Type of `{0}' is not CLS-compliant",
5515 GetSignatureForError ());
5520 public void SetAssigned ()
5522 caching_flags
|= Flags
.IsAssigned
;
5526 interface IFixedBuffer
5528 FieldInfo Element { get; }
5529 Type ElementType { get; }
5532 public class FixedFieldExternal
: IFixedBuffer
5534 FieldInfo element_field
;
5536 public FixedFieldExternal (FieldInfo fi
)
5538 element_field
= fi
.FieldType
.GetField (FixedField
.FixedElementName
);
5541 #region IFixedField Members
5543 public FieldInfo Element
{
5545 return element_field
;
5549 public Type ElementType
{
5551 return element_field
.FieldType
;
5559 /// Fixed buffer implementation
5561 public class FixedField
: FieldBase
, IFixedBuffer
5563 public const string FixedElementName
= "FixedElementField";
5564 static int GlobalCounter
= 0;
5565 static object[] ctor_args
= new object[] { (short)LayoutKind.Sequential }
;
5566 static FieldInfo
[] fi
;
5568 TypeBuilder fixed_buffer_type
;
5569 FieldBuilder element
;
5570 Expression size_expr
;
5572 const int AllowedModifiers
=
5575 Modifiers
.PROTECTED
|
5576 Modifiers
.INTERNAL
|
5579 public FixedField (DeclSpace parent
, FullNamedExpression type
, int mod
, string name
,
5580 Expression size_expr
, Attributes attrs
, Location loc
):
5581 base (parent
, type
, mod
, AllowedModifiers
, new MemberName (name
, loc
), attrs
)
5583 if (RootContext
.Version
< LanguageVersion
.ISO_2
)
5584 Report
.FeatureIsNotAvailable (loc
, "fixed size buffers");
5586 this.size_expr
= size_expr
;
5589 public override bool Define()
5591 if (!base.Define ())
5594 if (!TypeManager
.IsPrimitiveType (MemberType
)) {
5595 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",
5596 GetSignatureForError ());
5599 // Create nested fixed buffer container
5600 string name
= String
.Format ("<{0}>__FixedBuffer{1}", Name
, GlobalCounter
++);
5601 fixed_buffer_type
= Parent
.TypeBuilder
.DefineNestedType (name
, Parent
.Module
.DefaultCharSetType
|
5602 TypeAttributes
.NestedPublic
| TypeAttributes
.Sealed
| TypeAttributes
.BeforeFieldInit
, TypeManager
.value_type
);
5604 element
= fixed_buffer_type
.DefineField (FixedElementName
, MemberType
, FieldAttributes
.Public
);
5605 RootContext
.RegisterCompilerGeneratedType (fixed_buffer_type
);
5607 FieldBuilder
= Parent
.TypeBuilder
.DefineField (Name
, fixed_buffer_type
, Modifiers
.FieldAttr (ModFlags
));
5608 Parent
.MemberCache
.AddMember (FieldBuilder
, this);
5609 TypeManager
.RegisterFieldBase (FieldBuilder
, this);
5614 protected override void DoMemberTypeIndependentChecks ()
5616 base.DoMemberTypeIndependentChecks ();
5618 if (!Parent
.IsInUnsafeScope
)
5619 Expression
.UnsafeError (Location
);
5621 if (Parent
.PartialContainer
.Kind
!= Kind
.Struct
) {
5622 Report
.Error (1642, Location
, "`{0}': Fixed size buffer fields may only be members of structs",
5623 GetSignatureForError ());
5627 public override void Emit()
5629 EmitContext ec
= new EmitContext (this, Parent
, Location
, null, TypeManager
.void_type
, ModFlags
);
5630 Constant c
= size_expr
.ResolveAsConstant (ec
, this);
5634 IntConstant buffer_size_const
= c
.ImplicitConversionRequired (ec
, TypeManager
.int32_type
, Location
) as IntConstant
;
5635 if (buffer_size_const
== null)
5638 int buffer_size
= buffer_size_const
.Value
;
5640 if (buffer_size
<= 0) {
5641 Report
.Error (1665, Location
, "`{0}': Fixed size buffers must have a length greater than zero", GetSignatureForError ());
5645 int type_size
= Expression
.GetTypeSize (MemberType
);
5647 if (buffer_size
> int.MaxValue
/ type_size
) {
5648 Report
.Error (1664, Location
, "Fixed size buffer `{0}' of length `{1}' and type `{2}' exceeded 2^31 limit",
5649 GetSignatureForError (), buffer_size
.ToString (), TypeManager
.CSharpName (MemberType
));
5653 buffer_size
*= type_size
;
5654 EmitFieldSize (buffer_size
);
5656 PredefinedAttributes
.Get
.UnsafeValueType
.EmitAttribute (fixed_buffer_type
);
5661 void EmitFieldSize (int buffer_size
)
5663 CustomAttributeBuilder cab
;
5664 PredefinedAttribute pa
;
5666 pa
= PredefinedAttributes
.Get
.StructLayout
;
5667 if (pa
.Constructor
== null &&
5668 !pa
.ResolveConstructor (Location
, TypeManager
.short_type
))
5671 // TODO: It's not cleared
5673 fi
= new FieldInfo
[] { pa.Type.GetField ("Size") }
;
5675 object[] fi_val
= new object[] { buffer_size }
;
5676 cab
= new CustomAttributeBuilder (pa
.Constructor
,
5677 ctor_args
, fi
, fi_val
);
5678 fixed_buffer_type
.SetCustomAttribute (cab
);
5681 // Don't emit FixedBufferAttribute attribute for private types
5683 if ((ModFlags
& Modifiers
.PRIVATE
) != 0)
5686 pa
= PredefinedAttributes
.Get
.FixedBuffer
;
5687 if (pa
.Constructor
== null &&
5688 !pa
.ResolveConstructor (Location
, TypeManager
.type_type
, TypeManager
.int32_type
))
5691 cab
= new CustomAttributeBuilder (pa
.Constructor
, new object[] { MemberType, buffer_size }
);
5692 FieldBuilder
.SetCustomAttribute (cab
);
5695 protected override bool IsFieldClsCompliant
{
5701 public void SetCharSet (TypeAttributes ta
)
5703 TypeAttributes cta
= fixed_buffer_type
.Attributes
;
5704 if ((cta
& TypeAttributes
.UnicodeClass
) != (ta
& TypeAttributes
.UnicodeClass
))
5705 SetTypeBuilderCharSet ((cta
& ~TypeAttributes
.AutoClass
) | TypeAttributes
.UnicodeClass
);
5706 else if ((cta
& TypeAttributes
.AutoClass
) != (ta
& TypeAttributes
.AutoClass
))
5707 SetTypeBuilderCharSet ((cta
& ~TypeAttributes
.UnicodeClass
) | TypeAttributes
.AutoClass
);
5708 else if (cta
== 0 && ta
!= 0)
5709 SetTypeBuilderCharSet (cta
& ~
(TypeAttributes
.UnicodeClass
| TypeAttributes
.AutoClass
));
5712 void SetTypeBuilderCharSet (TypeAttributes ta
)
5714 MethodInfo mi
= typeof (TypeBuilder
).GetMethod ("SetCharSet", BindingFlags
.Instance
| BindingFlags
.NonPublic
);
5716 Report
.RuntimeMissingSupport (Location
, "TypeBuilder::SetCharSet");
5718 mi
.Invoke (fixed_buffer_type
, new object [] { ta }
);
5722 #region IFixedField Members
5724 public FieldInfo Element
{
5730 public Type ElementType
{
5740 // The Field class is used to represents class/struct fields during parsing.
5742 public class Field
: FieldBase
{
5744 // Modifiers allowed in a class declaration
5746 const int AllowedModifiers
=
5749 Modifiers
.PROTECTED
|
5750 Modifiers
.INTERNAL
|
5753 Modifiers
.VOLATILE
|
5757 public Field (DeclSpace parent
, FullNamedExpression type
, int mod
, MemberName name
,
5759 : base (parent
, type
, mod
, AllowedModifiers
, name
, attrs
)
5763 bool CanBeVolatile ()
5765 if (TypeManager
.IsReferenceType (MemberType
))
5768 if (MemberType
== TypeManager
.bool_type
|| MemberType
== TypeManager
.char_type
||
5769 MemberType
== TypeManager
.sbyte_type
|| MemberType
== TypeManager
.byte_type
||
5770 MemberType
== TypeManager
.short_type
|| MemberType
== TypeManager
.ushort_type
||
5771 MemberType
== TypeManager
.int32_type
|| MemberType
== TypeManager
.uint32_type
||
5772 MemberType
== TypeManager
.float_type
||
5773 MemberType
== TypeManager
.intptr_type
|| MemberType
== TypeManager
.uintptr_type
)
5776 if (TypeManager
.IsEnumType (MemberType
))
5782 bool CheckStructLayout (Type type
, bool isStatic
)
5784 if (TypeManager
.IsBuiltinType (type
))
5788 if (!TypeManager
.IsValueType (type
) || TypeManager
.IsEqual (type
, Parent
.TypeBuilder
))
5792 if (!TypeManager
.IsEqual (TypeManager
.DropGenericTypeArguments (type
), Parent
.TypeBuilder
)) {
5793 if (!TypeManager
.IsGenericType (type
))
5796 foreach (Type t
in TypeManager
.GetTypeArguments (type
)) {
5797 if (!CheckStructLayout (t
, false))
5803 Report
.Error (523, Location
,
5804 "Struct member `{0}' of type `{1}' causes a cycle in the struct layout",
5805 GetSignatureForError (), TypeManager
.CSharpName (MemberType
));
5809 public override bool Define ()
5811 if (!base.Define ())
5816 Type
[] required_modifier
= null;
5817 if ((ModFlags
& Modifiers
.VOLATILE
) != 0) {
5818 if (TypeManager
.isvolatile_type
== null)
5819 TypeManager
.isvolatile_type
= TypeManager
.CoreLookupType (
5820 "System.Runtime.CompilerServices", "IsVolatile", Kind
.Class
, true);
5822 if (TypeManager
.isvolatile_type
!= null)
5823 required_modifier
= new Type
[] { TypeManager.isvolatile_type }
;
5826 FieldBuilder
= Parent
.TypeBuilder
.DefineField (
5827 Name
, MemberType
, required_modifier
, null, Modifiers
.FieldAttr (ModFlags
));
5829 FieldBuilder
= Parent
.TypeBuilder
.DefineField (
5830 Name
, MemberType
, Modifiers
.FieldAttr (ModFlags
));
5832 // Don't cache inaccessible fields
5833 if ((ModFlags
& Modifiers
.BACKING_FIELD
) == 0) {
5834 Parent
.MemberCache
.AddMember (FieldBuilder
, this);
5837 TypeManager
.RegisterFieldBase (FieldBuilder
, this);
5839 catch (ArgumentException
) {
5840 Report
.RuntimeMissingSupport (Location
, "`void' or `void*' field type");
5844 if (initializer
!= null) {
5845 ((TypeContainer
) Parent
).RegisterFieldForInitialization (this,
5846 new FieldInitializer (FieldBuilder
, initializer
, this));
5848 if (Parent
.PartialContainer
.Kind
== Kind
.Struct
)
5849 CheckStructLayout (member_type
, (ModFlags
& Modifiers
.STATIC
) != 0);
5855 protected override void DoMemberTypeDependentChecks ()
5857 base.DoMemberTypeDependentChecks ();
5859 if ((ModFlags
& Modifiers
.VOLATILE
) != 0) {
5860 if (!CanBeVolatile ()) {
5861 Report
.Error (677, Location
, "`{0}': A volatile field cannot be of the type `{1}'",
5862 GetSignatureForError (), TypeManager
.CSharpName (MemberType
));
5865 if ((ModFlags
& Modifiers
.READONLY
) != 0) {
5866 Report
.Error (678, Location
, "`{0}': A field cannot be both volatile and readonly",
5867 GetSignatureForError ());
5872 protected override bool VerifyClsCompliance ()
5874 if (!base.VerifyClsCompliance ())
5877 if ((ModFlags
& Modifiers
.VOLATILE
) != 0) {
5878 Report
.Warning (3026, 1, Location
, "CLS-compliant field `{0}' cannot be volatile", GetSignatureForError ());
5886 // `set' and `get' accessors are represented with an Accessor.
5888 public class Accessor
{
5890 // Null if the accessor is empty, or a Block if not
5892 public const int AllowedModifiers
=
5894 Modifiers
.PROTECTED
|
5895 Modifiers
.INTERNAL
|
5898 public ToplevelBlock Block
;
5899 public Attributes Attributes
;
5900 public Location Location
;
5901 public int ModFlags
;
5902 public ParametersCompiled Parameters
;
5904 public Accessor (ToplevelBlock b
, int mod
, Attributes attrs
, ParametersCompiled p
, Location loc
)
5910 ModFlags
= Modifiers
.Check (AllowedModifiers
, mod
, 0, loc
);
5914 // Ooouh Martin, templates are missing here.
5915 // When it will be possible move here a lot of child code and template method type.
5916 public abstract class AbstractPropertyEventMethod
: MemberCore
, IMethodData
{
5917 protected MethodData method_data
;
5918 protected ToplevelBlock block
;
5919 protected ListDictionary declarative_security
;
5921 // The accessor are created even if they are not wanted.
5922 // But we need them because their names are reserved.
5923 // Field says whether accessor will be emited or not
5924 public readonly bool IsDummy
;
5926 protected readonly string prefix
;
5928 ReturnParameter return_attributes
;
5930 public AbstractPropertyEventMethod (PropertyBasedMember member
, string prefix
)
5931 : base (member
.Parent
, SetupName (prefix
, member
, member
.Location
), null)
5933 this.prefix
= prefix
;
5937 public AbstractPropertyEventMethod (InterfaceMemberBase member
, Accessor accessor
,
5939 : base (member
.Parent
, SetupName (prefix
, member
, accessor
.Location
),
5940 accessor
.Attributes
)
5942 this.prefix
= prefix
;
5943 this.block
= accessor
.Block
;
5946 static MemberName
SetupName (string prefix
, InterfaceMemberBase member
, Location loc
)
5948 return new MemberName (member
.MemberName
.Left
, prefix
+ member
.ShortName
, loc
);
5951 public void UpdateName (InterfaceMemberBase member
)
5953 SetMemberName (SetupName (prefix
, member
, Location
));
5956 #region IMethodData Members
5958 public ToplevelBlock Block
{
5968 public CallingConventions CallingConventions
{
5970 return CallingConventions
.Standard
;
5974 public bool IsExcluded ()
5979 GenericMethod IMethodData
.GenericMethod
{
5985 public MemberName MethodName
{
5991 public Type
[] ParameterTypes
{
5993 return ParameterInfo
.Types
;
5997 public abstract ParametersCompiled ParameterInfo { get ; }
5998 public abstract Type ReturnType { get; }
5999 public abstract EmitContext
CreateEmitContext (DeclSpace ds
, ILGenerator ig
);
6003 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
6005 if (a
.Type
== pa
.CLSCompliant
|| a
.Type
== pa
.Obsolete
|| a
.Type
== pa
.Conditional
) {
6006 Report
.Error (1667, a
.Location
,
6007 "Attribute `{0}' is not valid on property or event accessors. It is valid on `{1}' declarations only",
6008 TypeManager
.CSharpName (a
.Type
), a
.GetValidTargets ());
6012 if (a
.IsValidSecurityAttribute ()) {
6013 if (declarative_security
== null)
6014 declarative_security
= new ListDictionary ();
6015 a
.ExtractSecurityPermissionSet (declarative_security
);
6019 if (a
.Target
== AttributeTargets
.Method
) {
6020 method_data
.MethodBuilder
.SetCustomAttribute (cb
);
6024 if (a
.Target
== AttributeTargets
.ReturnValue
) {
6025 if (return_attributes
== null)
6026 return_attributes
= new ReturnParameter (method_data
.MethodBuilder
, Location
);
6028 return_attributes
.ApplyAttributeBuilder (a
, cb
, pa
);
6032 ApplyToExtraTarget (a
, cb
, pa
);
6035 protected virtual void ApplyToExtraTarget (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
6037 throw new NotSupportedException ("You forgot to define special attribute target handling");
6040 // It is not supported for the accessors
6041 public sealed override bool Define()
6043 throw new NotSupportedException ();
6046 public virtual void Emit (DeclSpace parent
)
6048 method_data
.Emit (parent
);
6050 if ((ModFlags
& Modifiers
.COMPILER_GENERATED
) != 0 && !Parent
.IsCompilerGenerated
)
6051 PredefinedAttributes
.Get
.CompilerGenerated
.EmitAttribute (method_data
.MethodBuilder
);
6052 if (((ModFlags
& Modifiers
.DEBUGGER_HIDDEN
) != 0))
6053 PredefinedAttributes
.Get
.DebuggerHidden
.EmitAttribute (method_data
.MethodBuilder
);
6055 if (OptAttributes
!= null)
6056 OptAttributes
.Emit ();
6058 if (declarative_security
!= null) {
6059 foreach (DictionaryEntry de
in declarative_security
) {
6060 method_data
.MethodBuilder
.AddDeclarativeSecurity ((SecurityAction
)de
.Key
, (PermissionSet
)de
.Value
);
6067 public override bool EnableOverloadChecks (MemberCore overload
)
6069 // This can only happen with indexers and it will
6070 // be catched as indexer difference
6071 if (overload
is AbstractPropertyEventMethod
)
6074 if (overload
is MethodCore
) {
6075 caching_flags
|= Flags
.MethodOverloadsExist
;
6081 public override bool IsClsComplianceRequired()
6086 public bool IsDuplicateImplementation (MethodCore method
)
6088 if (!MemberName
.Equals (method
.MemberName
))
6091 Type
[] param_types
= method
.ParameterTypes
;
6093 if (param_types
== null || param_types
.Length
!= ParameterTypes
.Length
)
6096 for (int i
= 0; i
< param_types
.Length
; i
++)
6097 if (param_types
[i
] != ParameterTypes
[i
])
6100 Report
.SymbolRelatedToPreviousError (method
);
6101 Report
.Error (82, Location
, "A member `{0}' is already reserved",
6102 method
.GetSignatureForError ());
6106 public override bool IsUsed
6117 // Represents header string for documentation comment.
6119 public override string DocCommentHeader
{
6120 get { throw new InvalidOperationException ("Unexpected attempt to get doc comment from " + this.GetType () + "."); }
6123 void IMethodData
.EmitExtraSymbolInfo (SourceMethod source
)
6128 // Properties and Indexers both generate PropertyBuilders, we use this to share
6129 // their common bits.
6131 abstract public class PropertyBase
: PropertyBasedMember
{
6133 public class GetMethod
: PropertyMethod
6135 static string[] attribute_targets
= new string [] { "method", "return" }
;
6137 public GetMethod (PropertyBase method
):
6138 base (method
, "get_")
6142 public GetMethod (PropertyBase method
, Accessor accessor
):
6143 base (method
, accessor
, "get_")
6147 public override MethodBuilder
Define (DeclSpace parent
)
6149 base.Define (parent
);
6154 method_data
= new MethodData (method
, ModFlags
, flags
, this);
6156 if (!method_data
.Define (parent
, method
.GetFullName (MemberName
)))
6159 return method_data
.MethodBuilder
;
6162 public override Type ReturnType
{
6164 return method
.MemberType
;
6168 public override ParametersCompiled ParameterInfo
{
6170 return ParametersCompiled
.EmptyReadOnlyParameters
;
6174 public override string[] ValidAttributeTargets
{
6176 return attribute_targets
;
6181 public class SetMethod
: PropertyMethod
{
6183 static string[] attribute_targets
= new string [] { "method", "param", "return" }
;
6184 ImplicitParameter param_attr
;
6185 protected ParametersCompiled parameters
;
6187 public SetMethod (PropertyBase method
) :
6188 base (method
, "set_")
6190 parameters
= new ParametersCompiled (
6191 new Parameter (method
.type_name
, "value", Parameter
.Modifier
.NONE
, null, Location
));
6194 public SetMethod (PropertyBase method
, Accessor accessor
):
6195 base (method
, accessor
, "set_")
6197 this.parameters
= accessor
.Parameters
;
6200 protected override void ApplyToExtraTarget (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
6202 if (a
.Target
== AttributeTargets
.Parameter
) {
6203 if (param_attr
== null)
6204 param_attr
= new ImplicitParameter (method_data
.MethodBuilder
);
6206 param_attr
.ApplyAttributeBuilder (a
, cb
, pa
);
6210 base.ApplyAttributeBuilder (a
, cb
, pa
);
6213 public override ParametersCompiled ParameterInfo
{
6219 public override MethodBuilder
Define (DeclSpace parent
)
6221 parameters
.Resolve (ResolveContext
);
6223 base.Define (parent
);
6228 method_data
= new MethodData (method
, ModFlags
, flags
, this);
6230 if (!method_data
.Define (parent
, method
.GetFullName (MemberName
)))
6233 return method_data
.MethodBuilder
;
6236 public override Type ReturnType
{
6238 return TypeManager
.void_type
;
6242 public override string[] ValidAttributeTargets
{
6244 return attribute_targets
;
6249 static string[] attribute_targets
= new string [] { "property" }
;
6251 public abstract class PropertyMethod
: AbstractPropertyEventMethod
6253 protected readonly PropertyBase method
;
6254 protected MethodAttributes flags
;
6256 public PropertyMethod (PropertyBase method
, string prefix
)
6257 : base (method
, prefix
)
6259 this.method
= method
;
6260 this.ModFlags
= method
.ModFlags
& (Modifiers
.STATIC
| Modifiers
.UNSAFE
);
6263 public PropertyMethod (PropertyBase method
, Accessor accessor
,
6265 : base (method
, accessor
, prefix
)
6267 this.method
= method
;
6268 this.ModFlags
= accessor
.ModFlags
| (method
.ModFlags
& (Modifiers
.STATIC
| Modifiers
.UNSAFE
));
6270 if (accessor
.ModFlags
!= 0 && RootContext
.Version
== LanguageVersion
.ISO_1
) {
6271 Report
.FeatureIsNotAvailable (Location
, "access modifiers on properties");
6275 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
6277 if (a
.IsInternalMethodImplAttribute
) {
6278 method
.is_external_implementation
= true;
6281 base.ApplyAttributeBuilder (a
, cb
, pa
);
6284 public override AttributeTargets AttributeTargets
{
6286 return AttributeTargets
.Method
;
6290 public override bool IsClsComplianceRequired ()
6292 return method
.IsClsComplianceRequired ();
6295 public virtual MethodBuilder
Define (DeclSpace parent
)
6297 CheckForDuplications ();
6300 if (method
.InterfaceType
!= null && parent
.PartialContainer
.PendingImplementations
!= null) {
6301 MethodInfo mi
= parent
.PartialContainer
.PendingImplementations
.IsInterfaceMethod (
6302 MethodName
.Name
, method
.InterfaceType
, new MethodData (method
, ModFlags
, flags
, this));
6304 Report
.SymbolRelatedToPreviousError (mi
);
6305 Report
.Error (551, Location
, "Explicit interface implementation `{0}' is missing accessor `{1}'",
6306 method
.GetSignatureForError (), TypeManager
.CSharpSignature (mi
, true));
6312 TypeContainer container
= parent
.PartialContainer
;
6315 // Check for custom access modifier
6317 if ((ModFlags
& Modifiers
.Accessibility
) == 0) {
6318 ModFlags
|= method
.ModFlags
;
6319 flags
= method
.flags
;
6321 if (container
.Kind
== Kind
.Interface
)
6322 Report
.Error (275, Location
, "`{0}': accessibility modifiers may not be used on accessors in an interface",
6323 GetSignatureForError ());
6325 if ((method
.ModFlags
& Modifiers
.ABSTRACT
) != 0 && (ModFlags
& Modifiers
.PRIVATE
) != 0) {
6326 Report
.Error (442, Location
, "`{0}': abstract properties cannot have private accessors", GetSignatureForError ());
6329 CheckModifiers (ModFlags
);
6330 ModFlags
|= (method
.ModFlags
& (~Modifiers
.Accessibility
));
6331 ModFlags
|= Modifiers
.PROPERTY_CUSTOM
;
6332 flags
= Modifiers
.MethodAttr (ModFlags
);
6333 flags
|= (method
.flags
& (~MethodAttributes
.MemberAccessMask
));
6336 CheckAbstractAndExtern (block
!= null);
6338 if (block
!= null && block
.IsIterator
)
6339 Iterator
.CreateIterator (this, Parent
.PartialContainer
, ModFlags
);
6344 public bool HasCustomAccessModifier
{
6346 return (ModFlags
& Modifiers
.PROPERTY_CUSTOM
) != 0;
6350 public PropertyBase Property
{
6356 public override EmitContext
CreateEmitContext (DeclSpace ds
, ILGenerator ig
)
6358 return new EmitContext (this,
6359 ds
, method
.ds
, method
.Location
, ig
, ReturnType
,
6360 method
.ModFlags
, false);
6363 public override ObsoleteAttribute
GetObsoleteAttribute ()
6365 return method
.GetObsoleteAttribute ();
6368 public override string GetSignatureForError()
6370 return method
.GetSignatureForError () + '.' + prefix
.Substring (0, 3);
6373 void CheckModifiers (int modflags
)
6375 modflags
&= Modifiers
.Accessibility
;
6377 int mflags
= method
.ModFlags
& Modifiers
.Accessibility
;
6379 if ((mflags
& Modifiers
.PUBLIC
) != 0) {
6380 flags
|= Modifiers
.PROTECTED
| Modifiers
.INTERNAL
| Modifiers
.PRIVATE
;
6382 else if ((mflags
& Modifiers
.PROTECTED
) != 0) {
6383 if ((mflags
& Modifiers
.INTERNAL
) != 0)
6384 flags
|= Modifiers
.PROTECTED
| Modifiers
.INTERNAL
;
6386 flags
|= Modifiers
.PRIVATE
;
6388 else if ((mflags
& Modifiers
.INTERNAL
) != 0)
6389 flags
|= Modifiers
.PRIVATE
;
6391 if ((mflags
== modflags
) || (modflags
& (~flags
)) != 0) {
6392 Report
.Error (273, Location
,
6393 "The accessibility modifier of the `{0}' accessor must be more restrictive than the modifier of the property or indexer `{1}'",
6394 GetSignatureForError (), method
.GetSignatureForError ());
6398 protected bool CheckForDuplications ()
6400 if ((caching_flags
& Flags
.MethodOverloadsExist
) == 0)
6403 return Parent
.MemberCache
.CheckExistingMembersOverloads (this, Name
, ParameterInfo
);
6407 public PropertyMethod Get
, Set
;
6408 public PropertyBuilder PropertyBuilder
;
6409 public MethodBuilder GetBuilder
, SetBuilder
;
6411 protected bool define_set_first
= false;
6413 public PropertyBase (DeclSpace parent
, FullNamedExpression type
, int mod_flags
,
6414 int allowed_mod
, MemberName name
,
6415 Attributes attrs
, bool define_set_first
)
6416 : base (parent
, null, type
, mod_flags
, allowed_mod
, name
, attrs
)
6418 this.define_set_first
= define_set_first
;
6421 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
6423 if (a
.HasSecurityAttribute
) {
6424 a
.Error_InvalidSecurityParent ();
6428 PropertyBuilder
.SetCustomAttribute (cb
);
6431 public override AttributeTargets AttributeTargets
{
6433 return AttributeTargets
.Property
;
6437 protected override void DoMemberTypeDependentChecks ()
6439 base.DoMemberTypeDependentChecks ();
6443 if (MemberType
.IsGenericParameter
)
6447 if ((MemberType
.Attributes
& Class
.StaticClassAttribute
) == Class
.StaticClassAttribute
) {
6448 Report
.Error (722, Location
, Error722
, TypeManager
.CSharpName (MemberType
));
6452 protected override void DoMemberTypeIndependentChecks ()
6454 base.DoMemberTypeIndependentChecks ();
6457 // Accessors modifiers check
6459 if ((Get
.ModFlags
& Modifiers
.Accessibility
) != 0 &&
6460 (Set
.ModFlags
& Modifiers
.Accessibility
) != 0) {
6461 Report
.Error (274, Location
, "`{0}': Cannot specify accessibility modifiers for both accessors of the property or indexer",
6462 GetSignatureForError ());
6465 if ((ModFlags
& Modifiers
.OVERRIDE
) == 0 &&
6466 (Get
.IsDummy
&& (Set
.ModFlags
& Modifiers
.Accessibility
) != 0) ||
6467 (Set
.IsDummy
&& (Get
.ModFlags
& Modifiers
.Accessibility
) != 0)) {
6468 Report
.Error (276, Location
,
6469 "`{0}': accessibility modifiers on accessors may only be used if the property or indexer has both a get and a set accessor",
6470 GetSignatureForError ());
6476 GetBuilder
= Get
.Define (Parent
);
6477 return (Get
.IsDummy
) ? true : GetBuilder
!= null;
6480 bool DefineSet (bool define
)
6485 SetBuilder
= Set
.Define (Parent
);
6486 return (Set
.IsDummy
) ? true : SetBuilder
!= null;
6489 protected bool DefineAccessors ()
6491 return DefineSet (define_set_first
) &&
6493 DefineSet (!define_set_first
);
6496 protected abstract PropertyInfo
ResolveBaseProperty ();
6498 // TODO: rename to Resolve......
6499 protected override MethodInfo
FindOutBaseMethod (ref Type base_ret_type
)
6501 PropertyInfo base_property
= ResolveBaseProperty ();
6502 if (base_property
== null)
6505 base_ret_type
= base_property
.PropertyType
;
6506 MethodInfo get_accessor
= base_property
.GetGetMethod (true);
6507 MethodInfo set_accessor
= base_property
.GetSetMethod (true);
6508 MethodAttributes get_accessor_access
= 0, set_accessor_access
= 0;
6511 // Check base property accessors conflict
6513 if ((ModFlags
& (Modifiers
.OVERRIDE
| Modifiers
.NEW
)) == Modifiers
.OVERRIDE
) {
6514 if (get_accessor
== null) {
6515 if (Get
!= null && !Get
.IsDummy
) {
6516 Report
.SymbolRelatedToPreviousError (base_property
);
6517 Report
.Error (545, Location
,
6518 "`{0}.get': cannot override because `{1}' does not have an overridable get accessor",
6519 GetSignatureForError (), TypeManager
.GetFullNameSignature (base_property
));
6522 get_accessor_access
= get_accessor
.Attributes
& MethodAttributes
.MemberAccessMask
;
6524 if (!Get
.IsDummy
&& !CheckAccessModifiers (
6525 Modifiers
.MethodAttr (Get
.ModFlags
) & MethodAttributes
.MemberAccessMask
, get_accessor_access
, get_accessor
))
6526 Error_CannotChangeAccessModifiers (Get
.Location
, get_accessor
, get_accessor_access
, ".get");
6529 if (set_accessor
== null) {
6530 if (Set
!= null && !Set
.IsDummy
) {
6531 Report
.SymbolRelatedToPreviousError (base_property
);
6532 Report
.Error (546, Location
,
6533 "`{0}.set': cannot override because `{1}' does not have an overridable set accessor",
6534 GetSignatureForError (), TypeManager
.GetFullNameSignature (base_property
));
6537 set_accessor_access
= set_accessor
.Attributes
& MethodAttributes
.MemberAccessMask
;
6539 if (!Set
.IsDummy
&& !CheckAccessModifiers (
6540 Modifiers
.MethodAttr (Set
.ModFlags
) & MethodAttributes
.MemberAccessMask
, set_accessor_access
, set_accessor
))
6541 Error_CannotChangeAccessModifiers (Set
.Location
, set_accessor
, set_accessor_access
, ".set");
6545 // When one accessor does not exist and property hides base one
6546 // we need to propagate this upwards
6547 if (set_accessor
== null)
6548 set_accessor
= get_accessor
;
6551 // Get the less restrictive access
6553 return get_accessor_access
> set_accessor_access
? get_accessor
: set_accessor
;
6556 public override void Emit ()
6559 // The PropertyBuilder can be null for explicit implementations, in that
6560 // case, we do not actually emit the ".property", so there is nowhere to
6561 // put the attribute
6563 if (PropertyBuilder
!= null && OptAttributes
!= null)
6564 OptAttributes
.Emit ();
6576 /// Tests whether accessors are not in collision with some method (CS0111)
6578 public bool AreAccessorsDuplicateImplementation (MethodCore mc
)
6580 return Get
.IsDuplicateImplementation (mc
) || Set
.IsDuplicateImplementation (mc
);
6583 public override bool IsUsed
6589 return Get
.IsUsed
| Set
.IsUsed
;
6593 protected override void SetMemberName (MemberName new_name
)
6595 base.SetMemberName (new_name
);
6597 Get
.UpdateName (this);
6598 Set
.UpdateName (this);
6601 public override string[] ValidAttributeTargets
{
6603 return attribute_targets
;
6608 // Represents header string for documentation comment.
6610 public override string DocCommentHeader
{
6611 get { return "P:"; }
6615 public class Property
: PropertyBase
6617 public sealed class BackingField
: Field
6619 readonly Property property
;
6621 public BackingField (Property p
)
6622 : base (p
.Parent
, p
.type_name
,
6623 Modifiers
.BACKING_FIELD
| Modifiers
.COMPILER_GENERATED
| Modifiers
.PRIVATE
| (p
.ModFlags
& (Modifiers
.STATIC
| Modifiers
.UNSAFE
)),
6624 new MemberName ("<" + p
.GetFullName (p
.MemberName
) + ">k__BackingField", p
.Location
), null)
6629 public override string GetSignatureForError ()
6631 return property
.GetSignatureForError ();
6635 const int AllowedModifiers
=
6638 Modifiers
.PROTECTED
|
6639 Modifiers
.INTERNAL
|
6643 Modifiers
.OVERRIDE
|
6644 Modifiers
.ABSTRACT
|
6649 const int AllowedInterfaceModifiers
=
6652 public Property (DeclSpace parent
, FullNamedExpression type
, int mod
,
6653 MemberName name
, Attributes attrs
, Accessor get_block
,
6654 Accessor set_block
, bool define_set_first
)
6655 : this (parent
, type
, mod
, name
, attrs
, get_block
, set_block
,
6656 define_set_first
, null)
6660 public Property (DeclSpace parent
, FullNamedExpression type
, int mod
,
6661 MemberName name
, Attributes attrs
, Accessor get_block
,
6662 Accessor set_block
, bool define_set_first
, Block current_block
)
6663 : base (parent
, type
, mod
,
6664 parent
.PartialContainer
.Kind
== Kind
.Interface
? AllowedInterfaceModifiers
: AllowedModifiers
,
6665 name
, attrs
, define_set_first
)
6667 if (get_block
== null)
6668 Get
= new GetMethod (this);
6670 Get
= new GetMethod (this, get_block
);
6672 if (set_block
== null)
6673 Set
= new SetMethod (this);
6675 Set
= new SetMethod (this, set_block
);
6677 if (!IsInterface
&& (mod
& (Modifiers
.ABSTRACT
| Modifiers
.EXTERN
)) == 0 &&
6678 get_block
!= null && get_block
.Block
== null &&
6679 set_block
!= null && set_block
.Block
== null) {
6680 if (RootContext
.Version
<= LanguageVersion
.ISO_2
)
6681 Report
.FeatureIsNotAvailable (Location
, "automatically implemented properties");
6683 Get
.ModFlags
|= Modifiers
.COMPILER_GENERATED
;
6684 Set
.ModFlags
|= Modifiers
.COMPILER_GENERATED
;
6688 void CreateAutomaticProperty ()
6690 // Create backing field
6691 Field field
= new BackingField (this);
6692 if (!field
.Define ())
6695 Parent
.PartialContainer
.AddField (field
);
6697 FieldExpr fe
= new FieldExpr (field
.FieldBuilder
, Location
);
6698 if ((field
.ModFlags
& Modifiers
.STATIC
) == 0)
6699 fe
.InstanceExpression
= new CompilerGeneratedThis (fe
.Type
, Location
);
6702 Get
.Block
= new ToplevelBlock (ParametersCompiled
.EmptyReadOnlyParameters
, Location
);
6703 Return r
= new Return (fe
, Location
);
6704 Get
.Block
.AddStatement (r
);
6707 Set
.Block
= new ToplevelBlock (Set
.ParameterInfo
, Location
);
6708 Assign a
= new SimpleAssign (fe
, new SimpleName ("value", Location
));
6709 Set
.Block
.AddStatement (new StatementExpression (a
));
6712 public override bool Define ()
6714 if (!base.Define ())
6717 flags
|= MethodAttributes
.HideBySig
| MethodAttributes
.SpecialName
;
6719 if ((Get
.ModFlags
& Modifiers
.COMPILER_GENERATED
) != 0)
6720 CreateAutomaticProperty ();
6722 if (!DefineAccessors ())
6728 // FIXME - PropertyAttributes.HasDefault ?
6730 PropertyBuilder
= Parent
.TypeBuilder
.DefineProperty (
6731 GetFullName (MemberName
), PropertyAttributes
.None
, MemberType
, null);
6734 PropertyBuilder
.SetGetMethod (GetBuilder
);
6735 Parent
.MemberCache
.AddMember (GetBuilder
, Get
);
6739 PropertyBuilder
.SetSetMethod (SetBuilder
);
6740 Parent
.MemberCache
.AddMember (SetBuilder
, Set
);
6743 TypeManager
.RegisterProperty (PropertyBuilder
, this);
6744 Parent
.MemberCache
.AddMember (PropertyBuilder
, this);
6748 public override void Emit ()
6750 if (((Set
.ModFlags
| Get
.ModFlags
) & (Modifiers
.STATIC
| Modifiers
.COMPILER_GENERATED
)) == Modifiers
.COMPILER_GENERATED
&& Parent
.PartialContainer
.HasExplicitLayout
) {
6751 Report
.Error (842, Location
,
6752 "Automatically implemented property `{0}' cannot be used inside a type with an explicit StructLayout attribute",
6753 GetSignatureForError ());
6759 protected override PropertyInfo
ResolveBaseProperty ()
6761 return Parent
.PartialContainer
.BaseCache
.FindMemberToOverride (
6762 Parent
.TypeBuilder
, Name
, ParametersCompiled
.EmptyReadOnlyParameters
, null, true) as PropertyInfo
;
6767 /// Gigantic workaround for lameness in SRE follows :
6768 /// This class derives from EventInfo and attempts to basically
6769 /// wrap around the EventBuilder so that FindMembers can quickly
6770 /// return this in it search for members
6772 public class MyEventBuilder
: EventInfo
{
6775 // We use this to "point" to our Builder which is
6776 // not really a MemberInfo
6778 EventBuilder MyBuilder
;
6781 // We "catch" and wrap these methods
6783 MethodInfo raise
, remove, add;
6785 EventAttributes attributes
;
6786 Type declaring_type
, reflected_type
, event_type
;
6791 public MyEventBuilder (Event ev
, TypeBuilder type_builder
, string name
, EventAttributes event_attr
, Type event_type
)
6793 MyBuilder
= type_builder
.DefineEvent (name
, event_attr
, event_type
);
6795 // And now store the values in our own fields.
6797 declaring_type
= type_builder
;
6799 reflected_type
= type_builder
;
6801 attributes
= event_attr
;
6804 this.event_type
= event_type
;
6808 // Methods that you have to override. Note that you only need
6809 // to "implement" the variants that take the argument (those are
6810 // the "abstract" methods, the others (GetAddMethod()) are
6813 public override MethodInfo
GetAddMethod (bool nonPublic
)
6818 public override MethodInfo
GetRemoveMethod (bool nonPublic
)
6823 public override MethodInfo
GetRaiseMethod (bool nonPublic
)
6829 // These methods make "MyEventInfo" look like a Builder
6831 public void SetRaiseMethod (MethodBuilder raiseMethod
)
6833 raise
= raiseMethod
;
6834 MyBuilder
.SetRaiseMethod (raiseMethod
);
6837 public void SetRemoveOnMethod (MethodBuilder removeMethod
)
6839 remove = removeMethod
;
6840 MyBuilder
.SetRemoveOnMethod (removeMethod
);
6843 public void SetAddOnMethod (MethodBuilder addMethod
)
6846 MyBuilder
.SetAddOnMethod (addMethod
);
6849 public void SetCustomAttribute (CustomAttributeBuilder cb
)
6851 MyBuilder
.SetCustomAttribute (cb
);
6854 public override object [] GetCustomAttributes (bool inherit
)
6856 // FIXME : There's nothing which can be seemingly done here because
6857 // we have no way of getting at the custom attribute objects of the
6862 public override object [] GetCustomAttributes (Type t
, bool inherit
)
6864 // FIXME : Same here !
6868 public override bool IsDefined (Type t
, bool b
)
6873 public override EventAttributes Attributes
{
6879 public override string Name
{
6885 public override Type DeclaringType
{
6887 return declaring_type
;
6891 public override Type ReflectedType
{
6893 return reflected_type
;
6897 public Type EventType
{
6903 public void SetUsed ()
6905 if (my_event
!= null) {
6906 // my_event.SetAssigned ();
6907 my_event
.SetMemberIsUsed ();
6913 /// For case when event is declared like property (with add and remove accessors).
6915 public class EventProperty
: Event
{
6916 abstract class AEventPropertyAccessor
: AEventAccessor
6918 protected AEventPropertyAccessor (Event method
, Accessor accessor
, string prefix
):
6919 base (method
, accessor
, prefix
)
6923 public override MethodBuilder
Define (DeclSpace ds
)
6925 CheckAbstractAndExtern (block
!= null);
6926 return base.Define (ds
);
6929 public override string GetSignatureForError ()
6931 return method
.GetSignatureForError () + "." + prefix
.Substring (0, prefix
.Length
- 1);
6935 sealed class AddDelegateMethod
: AEventPropertyAccessor
6937 public AddDelegateMethod (Event method
, Accessor accessor
):
6938 base (method
, accessor
, AddPrefix
)
6943 sealed class RemoveDelegateMethod
: AEventPropertyAccessor
6945 public RemoveDelegateMethod (Event method
, Accessor accessor
):
6946 base (method
, accessor
, RemovePrefix
)
6952 static readonly string[] attribute_targets
= new string [] { "event" }
; // "property" target was disabled for 2.0 version
6954 public EventProperty (DeclSpace parent
, FullNamedExpression type
, int mod_flags
,
6956 Attributes attrs
, Accessor
add, Accessor
remove)
6957 : base (parent
, type
, mod_flags
, name
, attrs
)
6959 Add
= new AddDelegateMethod (this, add);
6960 Remove
= new RemoveDelegateMethod (this, remove);
6963 public override bool Define()
6965 if (!base.Define ())
6972 public override string[] ValidAttributeTargets
{
6974 return attribute_targets
;
6980 /// Event is declared like field.
6982 public class EventField
: Event
{
6983 abstract class EventFieldAccessor
: AEventAccessor
6985 protected EventFieldAccessor (Event method
, string prefix
)
6986 : base (method
, prefix
)
6990 public override void Emit (DeclSpace parent
)
6992 if ((method
.ModFlags
& (Modifiers
.ABSTRACT
| Modifiers
.EXTERN
)) == 0) {
6993 if (parent
is Class
) {
6994 MethodBuilder mb
= method_data
.MethodBuilder
;
6995 mb
.SetImplementationFlags (mb
.GetMethodImplementationFlags () | MethodImplAttributes
.Synchronized
);
6998 // TODO: because we cannot use generics yet
6999 FieldInfo field_info
= ((EventField
) method
).BackingField
.FieldBuilder
;
7000 FieldExpr f_expr
= new FieldExpr (field_info
, Location
);
7001 if ((method
.ModFlags
& Modifiers
.STATIC
) == 0)
7002 f_expr
.InstanceExpression
= new CompilerGeneratedThis (field_info
.FieldType
, Location
);
7004 block
= new ToplevelBlock (ParameterInfo
, Location
);
7005 block
.AddStatement (new StatementExpression (
7006 new CompoundAssign (Operation
,
7008 block
.GetParameterReference (ParameterInfo
[0].Name
, Location
))));
7014 protected abstract Binary
.Operator Operation { get; }
7017 sealed class AddDelegateMethod
: EventFieldAccessor
7019 public AddDelegateMethod (Event method
):
7020 base (method
, AddPrefix
)
7024 protected override Binary
.Operator Operation
{
7025 get { return Binary.Operator.Addition; }
7029 sealed class RemoveDelegateMethod
: EventFieldAccessor
7031 public RemoveDelegateMethod (Event method
):
7032 base (method
, RemovePrefix
)
7036 protected override Binary
.Operator Operation
{
7037 get { return Binary.Operator.Subtraction; }
7042 static readonly string[] attribute_targets
= new string [] { "event", "field", "method" }
;
7043 static readonly string[] attribute_targets_interface
= new string[] { "event", "method" }
;
7045 public Field BackingField
;
7046 public Expression Initializer
;
7048 public EventField (DeclSpace parent
, FullNamedExpression type
, int mod_flags
, MemberName name
, Attributes attrs
)
7049 : base (parent
, type
, mod_flags
, name
, attrs
)
7051 Add
= new AddDelegateMethod (this);
7052 Remove
= new RemoveDelegateMethod (this);
7055 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
7057 if (a
.Target
== AttributeTargets
.Field
) {
7058 BackingField
.ApplyAttributeBuilder (a
, cb
, pa
);
7062 if (a
.Target
== AttributeTargets
.Method
) {
7063 int errors
= Report
.Errors
;
7064 Add
.ApplyAttributeBuilder (a
, cb
, pa
);
7065 if (errors
== Report
.Errors
)
7066 Remove
.ApplyAttributeBuilder (a
, cb
, pa
);
7070 base.ApplyAttributeBuilder (a
, cb
, pa
);
7073 public override bool Define()
7075 if (!base.Define ())
7078 if (Initializer
!= null && (ModFlags
& Modifiers
.ABSTRACT
) != 0) {
7079 Report
.Error (74, Location
, "`{0}': abstract event cannot have an initializer",
7080 GetSignatureForError ());
7083 if (!HasBackingField
) {
7088 // FIXME: We are unable to detect whether generic event is used because
7089 // we are using FieldExpr instead of EventExpr for event access in that
7090 // case. When this issue will be fixed this hack can be removed.
7091 if (TypeManager
.IsGenericType (MemberType
))
7094 if (Add
.IsInterfaceImplementation
)
7097 TypeManager
.RegisterEventField (EventBuilder
, this);
7099 BackingField
= new Field (Parent
,
7100 new TypeExpression (MemberType
, Location
),
7101 Modifiers
.BACKING_FIELD
| Modifiers
.COMPILER_GENERATED
| Modifiers
.PRIVATE
| (ModFlags
& (Modifiers
.STATIC
| Modifiers
.UNSAFE
)),
7104 Parent
.PartialContainer
.AddField (BackingField
);
7105 BackingField
.Initializer
= Initializer
;
7106 BackingField
.ModFlags
&= ~Modifiers
.COMPILER_GENERATED
;
7108 // Call define because we passed fields definition
7109 return BackingField
.Define ();
7112 bool HasBackingField
{
7114 return !IsInterface
&& (ModFlags
& Modifiers
.ABSTRACT
) == 0;
7118 public override string[] ValidAttributeTargets
7121 return HasBackingField
? attribute_targets
: attribute_targets_interface
;
7126 public abstract class Event
: PropertyBasedMember
{
7127 public abstract class AEventAccessor
: AbstractPropertyEventMethod
7129 protected readonly Event method
;
7130 ImplicitParameter param_attr
;
7132 static readonly string[] attribute_targets
= new string [] { "method", "param", "return" }
;
7134 public const string AddPrefix
= "add_";
7135 public const string RemovePrefix
= "remove_";
7137 protected AEventAccessor (Event method
, string prefix
)
7138 : base (method
, prefix
)
7140 this.method
= method
;
7141 this.ModFlags
= method
.ModFlags
;
7144 protected AEventAccessor (Event method
, Accessor accessor
, string prefix
)
7145 : base (method
, accessor
, prefix
)
7147 this.method
= method
;
7148 this.ModFlags
= method
.ModFlags
;
7151 public bool IsInterfaceImplementation
{
7152 get { return method_data.implementing != null; }
7155 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
7157 if (a
.IsInternalMethodImplAttribute
) {
7158 method
.is_external_implementation
= true;
7161 base.ApplyAttributeBuilder (a
, cb
, pa
);
7164 protected override void ApplyToExtraTarget (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
7166 if (a
.Target
== AttributeTargets
.Parameter
) {
7167 if (param_attr
== null)
7168 param_attr
= new ImplicitParameter (method_data
.MethodBuilder
);
7170 param_attr
.ApplyAttributeBuilder (a
, cb
, pa
);
7174 base.ApplyAttributeBuilder (a
, cb
, pa
);
7177 public override AttributeTargets AttributeTargets
{
7179 return AttributeTargets
.Method
;
7183 public override bool IsClsComplianceRequired ()
7185 return method
.IsClsComplianceRequired ();
7188 public virtual MethodBuilder
Define (DeclSpace parent
)
7190 method_data
= new MethodData (method
, method
.ModFlags
,
7191 method
.flags
| MethodAttributes
.HideBySig
| MethodAttributes
.SpecialName
, this);
7193 if (!method_data
.Define (parent
, method
.GetFullName (MemberName
)))
7196 MethodBuilder mb
= method_data
.MethodBuilder
;
7197 ParameterInfo
.ApplyAttributes (mb
);
7201 public override Type ReturnType
{
7203 return TypeManager
.void_type
;
7207 public override EmitContext
CreateEmitContext (DeclSpace ds
, ILGenerator ig
)
7209 return new EmitContext (
7210 this, method
.Parent
, Location
, ig
, ReturnType
,
7211 method
.ModFlags
, false);
7214 public override ObsoleteAttribute
GetObsoleteAttribute ()
7216 return method
.GetObsoleteAttribute ();
7219 public override string[] ValidAttributeTargets
{
7221 return attribute_targets
;
7225 public override ParametersCompiled ParameterInfo
{
7227 return method
.parameters
;
7233 const int AllowedModifiers
=
7236 Modifiers
.PROTECTED
|
7237 Modifiers
.INTERNAL
|
7242 Modifiers
.OVERRIDE
|
7244 Modifiers
.ABSTRACT
|
7247 const int AllowedInterfaceModifiers
=
7250 public AEventAccessor Add
, Remove
;
7251 public MyEventBuilder EventBuilder
;
7252 public MethodBuilder AddBuilder
, RemoveBuilder
;
7254 ParametersCompiled parameters
;
7256 protected Event (DeclSpace parent
, FullNamedExpression type
, int mod_flags
, MemberName name
, Attributes attrs
)
7257 : base (parent
, null, type
, mod_flags
,
7258 parent
.PartialContainer
.Kind
== Kind
.Interface
? AllowedInterfaceModifiers
: AllowedModifiers
,
7263 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
7265 if ((a
.HasSecurityAttribute
)) {
7266 a
.Error_InvalidSecurityParent ();
7270 EventBuilder
.SetCustomAttribute (cb
);
7273 public bool AreAccessorsDuplicateImplementation (MethodCore mc
)
7275 return Add
.IsDuplicateImplementation (mc
) || Remove
.IsDuplicateImplementation (mc
);
7278 public override AttributeTargets AttributeTargets
{
7280 return AttributeTargets
.Event
;
7284 public override bool Define ()
7286 if (!base.Define ())
7289 if (!TypeManager
.IsDelegateType (MemberType
)) {
7290 Report
.Error (66, Location
, "`{0}': event must be of a delegate type", GetSignatureForError ());
7293 parameters
= ParametersCompiled
.CreateFullyResolved (
7294 new Parameter (null, "value", Parameter
.Modifier
.NONE
, null, Location
), MemberType
);
7299 if (TypeManager
.delegate_combine_delegate_delegate
== null) {
7300 TypeManager
.delegate_combine_delegate_delegate
= TypeManager
.GetPredefinedMethod (
7301 TypeManager
.delegate_type
, "Combine", Location
,
7302 TypeManager
.delegate_type
, TypeManager
.delegate_type
);
7304 if (TypeManager
.delegate_remove_delegate_delegate
== null) {
7305 TypeManager
.delegate_remove_delegate_delegate
= TypeManager
.GetPredefinedMethod (
7306 TypeManager
.delegate_type
, "Remove", Location
,
7307 TypeManager
.delegate_type
, TypeManager
.delegate_type
);
7311 // Now define the accessors
7314 AddBuilder
= Add
.Define (Parent
);
7315 if (AddBuilder
== null)
7318 RemoveBuilder
= Remove
.Define (Parent
);
7319 if (RemoveBuilder
== null)
7322 EventBuilder
= new MyEventBuilder (this, Parent
.TypeBuilder
, Name
, EventAttributes
.None
, MemberType
);
7323 EventBuilder
.SetAddOnMethod (AddBuilder
);
7324 EventBuilder
.SetRemoveOnMethod (RemoveBuilder
);
7326 Parent
.MemberCache
.AddMember (EventBuilder
, this);
7327 Parent
.MemberCache
.AddMember (AddBuilder
, Add
);
7328 Parent
.MemberCache
.AddMember (RemoveBuilder
, Remove
);
7333 public override void Emit ()
7335 if (OptAttributes
!= null) {
7336 OptAttributes
.Emit ();
7340 Remove
.Emit (Parent
);
7345 protected override MethodInfo
FindOutBaseMethod (ref Type base_ret_type
)
7347 MethodInfo mi
= (MethodInfo
) Parent
.PartialContainer
.BaseCache
.FindBaseEvent (
7348 Parent
.TypeBuilder
, Name
);
7353 AParametersCollection pd
= TypeManager
.GetParameterData (mi
);
7354 base_ret_type
= pd
.Types
[0];
7359 // Represents header string for documentation comment.
7361 public override string DocCommentHeader
{
7362 get { return "E:"; }
7367 public class Indexer
: PropertyBase
7369 public class GetIndexerMethod
: GetMethod
7371 ParametersCompiled parameters
;
7373 public GetIndexerMethod (Indexer method
):
7376 this.parameters
= method
.parameters
;
7379 public GetIndexerMethod (PropertyBase method
, Accessor accessor
):
7380 base (method
, accessor
)
7382 parameters
= accessor
.Parameters
;
7385 public override MethodBuilder
Define (DeclSpace parent
)
7387 parameters
.Resolve (ResolveContext
);
7388 return base.Define (parent
);
7391 public override bool EnableOverloadChecks (MemberCore overload
)
7393 if (base.EnableOverloadChecks (overload
)) {
7394 overload
.caching_flags
|= Flags
.MethodOverloadsExist
;
7401 public override ParametersCompiled ParameterInfo
{
7408 public class SetIndexerMethod
: SetMethod
7410 public SetIndexerMethod (Indexer method
):
7413 parameters
= ParametersCompiled
.MergeGenerated (method
.parameters
, false, parameters
[0], null);
7416 public SetIndexerMethod (PropertyBase method
, Accessor accessor
):
7417 base (method
, accessor
)
7419 parameters
= method
.Get
.IsDummy
? accessor
.Parameters
: accessor
.Parameters
.Clone ();
7422 public override bool EnableOverloadChecks (MemberCore overload
)
7424 if (base.EnableOverloadChecks (overload
)) {
7425 overload
.caching_flags
|= Flags
.MethodOverloadsExist
;
7433 const int AllowedModifiers
=
7436 Modifiers
.PROTECTED
|
7437 Modifiers
.INTERNAL
|
7441 Modifiers
.OVERRIDE
|
7446 const int AllowedInterfaceModifiers
=
7449 public readonly ParametersCompiled parameters
;
7451 public Indexer (DeclSpace parent
, FullNamedExpression type
, MemberName name
, int mod
,
7452 ParametersCompiled parameters
, Attributes attrs
,
7453 Accessor get_block
, Accessor set_block
, bool define_set_first
)
7454 : base (parent
, type
, mod
,
7455 parent
.PartialContainer
.Kind
== Kind
.Interface
? AllowedInterfaceModifiers
: AllowedModifiers
,
7456 name
, attrs
, define_set_first
)
7458 this.parameters
= parameters
;
7460 if (get_block
== null)
7461 Get
= new GetIndexerMethod (this);
7463 Get
= new GetIndexerMethod (this, get_block
);
7465 if (set_block
== null)
7466 Set
= new SetIndexerMethod (this);
7468 Set
= new SetIndexerMethod (this, set_block
);
7471 protected override bool CheckForDuplications ()
7473 return Parent
.MemberCache
.CheckExistingMembersOverloads (this, GetFullName (MemberName
), parameters
);
7476 public override bool Define ()
7478 if (!base.Define ())
7481 if (!DefineParameters (parameters
))
7484 if (OptAttributes
!= null) {
7485 Attribute indexer_attr
= OptAttributes
.Search (PredefinedAttributes
.Get
.IndexerName
);
7486 if (indexer_attr
!= null) {
7487 // Remove the attribute from the list because it is not emitted
7488 OptAttributes
.Attrs
.Remove (indexer_attr
);
7490 string name
= indexer_attr
.GetIndexerAttributeValue ();
7496 if (IsExplicitImpl
) {
7497 Report
.Error (415, indexer_attr
.Location
,
7498 "The `IndexerName' attribute is valid only on an " +
7499 "indexer that is not an explicit interface member declaration");
7503 if ((ModFlags
& Modifiers
.OVERRIDE
) != 0) {
7504 Report
.Error (609, indexer_attr
.Location
,
7505 "Cannot set the `IndexerName' attribute on an indexer marked override");
7511 if (InterfaceType
!= null) {
7512 string base_IndexerName
= TypeManager
.IndexerPropertyName (InterfaceType
);
7513 if (base_IndexerName
!= Name
)
7514 ShortName
= base_IndexerName
;
7517 if (!Parent
.PartialContainer
.AddMember (this) ||
7518 !Parent
.PartialContainer
.AddMember (Get
) || !Parent
.PartialContainer
.AddMember (Set
))
7521 flags
|= MethodAttributes
.HideBySig
| MethodAttributes
.SpecialName
;
7523 if (!DefineAccessors ())
7530 // Now name the parameters
7532 PropertyBuilder
= Parent
.TypeBuilder
.DefineProperty (
7533 GetFullName (MemberName
), PropertyAttributes
.None
, MemberType
, parameters
.GetEmitTypes ());
7536 PropertyBuilder
.SetGetMethod (GetBuilder
);
7537 Parent
.MemberCache
.AddMember (GetBuilder
, Get
);
7541 PropertyBuilder
.SetSetMethod (SetBuilder
);
7542 Parent
.MemberCache
.AddMember (SetBuilder
, Set
);
7545 TypeManager
.RegisterIndexer (PropertyBuilder
, parameters
);
7546 Parent
.MemberCache
.AddMember (PropertyBuilder
, this);
7550 public override bool EnableOverloadChecks (MemberCore overload
)
7552 if (overload
is Indexer
) {
7553 caching_flags
|= Flags
.MethodOverloadsExist
;
7557 return base.EnableOverloadChecks (overload
);
7560 public override string GetDocCommentName (DeclSpace ds
)
7562 return DocUtil
.GetMethodDocCommentName (this, parameters
, ds
);
7565 public override string GetSignatureForError ()
7567 StringBuilder sb
= new StringBuilder (Parent
.GetSignatureForError ());
7568 if (MemberName
.Left
!= null) {
7570 sb
.Append (MemberName
.Left
.GetSignatureForError ());
7573 sb
.Append (".this");
7574 sb
.Append (parameters
.GetSignatureForError ().Replace ('(', '[').Replace (')', ']'));
7575 return sb
.ToString ();
7578 protected override PropertyInfo
ResolveBaseProperty ()
7580 return Parent
.PartialContainer
.BaseCache
.FindMemberToOverride (
7581 Parent
.TypeBuilder
, Name
, parameters
, null, true) as PropertyInfo
;
7584 protected override bool VerifyClsCompliance ()
7586 if (!base.VerifyClsCompliance ())
7589 parameters
.VerifyClsCompliance ();
7594 public class Operator
: MethodOrOperator
{
7596 const int AllowedModifiers
=
7602 public enum OpType
: byte {
7612 // Unary and Binary operators
7635 // Implicit and Explicit
7639 // Just because of enum
7643 public readonly OpType OperatorType
;
7645 static readonly string [] [] names
;
7649 names
= new string[(int)OpType
.TOP
][];
7650 names
[(int) OpType
.LogicalNot
] = new string [] { "!", "op_LogicalNot" }
;
7651 names
[(int) OpType
.OnesComplement
] = new string [] { "~", "op_OnesComplement" }
;
7652 names
[(int) OpType
.Increment
] = new string [] { "++", "op_Increment" }
;
7653 names
[(int) OpType
.Decrement
] = new string [] { "--", "op_Decrement" }
;
7654 names
[(int) OpType
.True
] = new string [] { "true", "op_True" }
;
7655 names
[(int) OpType
.False
] = new string [] { "false", "op_False" }
;
7656 names
[(int) OpType
.Addition
] = new string [] { "+", "op_Addition" }
;
7657 names
[(int) OpType
.Subtraction
] = new string [] { "-", "op_Subtraction" }
;
7658 names
[(int) OpType
.UnaryPlus
] = new string [] { "+", "op_UnaryPlus" }
;
7659 names
[(int) OpType
.UnaryNegation
] = new string [] { "-", "op_UnaryNegation" }
;
7660 names
[(int) OpType
.Multiply
] = new string [] { "*", "op_Multiply" }
;
7661 names
[(int) OpType
.Division
] = new string [] { "/", "op_Division" }
;
7662 names
[(int) OpType
.Modulus
] = new string [] { "%", "op_Modulus" }
;
7663 names
[(int) OpType
.BitwiseAnd
] = new string [] { "&", "op_BitwiseAnd" }
;
7664 names
[(int) OpType
.BitwiseOr
] = new string [] { "|", "op_BitwiseOr" }
;
7665 names
[(int) OpType
.ExclusiveOr
] = new string [] { "^", "op_ExclusiveOr" }
;
7666 names
[(int) OpType
.LeftShift
] = new string [] { "<<", "op_LeftShift" }
;
7667 names
[(int) OpType
.RightShift
] = new string [] { ">>", "op_RightShift" }
;
7668 names
[(int) OpType
.Equality
] = new string [] { "==", "op_Equality" }
;
7669 names
[(int) OpType
.Inequality
] = new string [] { "!=", "op_Inequality" }
;
7670 names
[(int) OpType
.GreaterThan
] = new string [] { ">", "op_GreaterThan" }
;
7671 names
[(int) OpType
.LessThan
] = new string [] { "<", "op_LessThan" }
;
7672 names
[(int) OpType
.GreaterThanOrEqual
] = new string [] { ">=", "op_GreaterThanOrEqual" }
;
7673 names
[(int) OpType
.LessThanOrEqual
] = new string [] { "<=", "op_LessThanOrEqual" }
;
7674 names
[(int) OpType
.Implicit
] = new string [] { "implicit", "op_Implicit" }
;
7675 names
[(int) OpType
.Explicit
] = new string [] { "explicit", "op_Explicit" }
;
7678 public Operator (DeclSpace parent
, OpType type
, FullNamedExpression ret_type
,
7679 int mod_flags
, ParametersCompiled parameters
,
7680 ToplevelBlock block
, Attributes attrs
, Location loc
)
7681 : base (parent
, null, ret_type
, mod_flags
, AllowedModifiers
,
7682 new MemberName (GetMetadataName (type
), loc
), attrs
, parameters
)
7684 OperatorType
= type
;
7688 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
, PredefinedAttributes pa
)
7690 if (a
.Type
== pa
.Conditional
) {
7691 Error_ConditionalAttributeIsNotValid ();
7695 base.ApplyAttributeBuilder (a
, cb
, pa
);
7698 public override bool Define ()
7700 const int RequiredModifiers
= Modifiers
.PUBLIC
| Modifiers
.STATIC
;
7701 if ((ModFlags
& RequiredModifiers
) != RequiredModifiers
){
7702 Report
.Error (558, Location
, "User-defined operator `{0}' must be declared static and public", GetSignatureForError ());
7705 if (!base.Define ())
7708 // imlicit and explicit operator of same types are not allowed
7709 if (OperatorType
== OpType
.Explicit
)
7710 Parent
.MemberCache
.CheckExistingMembersOverloads (this, GetMetadataName (OpType
.Implicit
), Parameters
);
7711 else if (OperatorType
== OpType
.Implicit
)
7712 Parent
.MemberCache
.CheckExistingMembersOverloads (this, GetMetadataName (OpType
.Explicit
), Parameters
);
7714 Type declaring_type
= MethodData
.DeclaringType
;
7715 Type return_type
= MemberType
;
7716 Type first_arg_type
= ParameterTypes
[0];
7718 Type first_arg_type_unwrap
= first_arg_type
;
7719 if (TypeManager
.IsNullableType (first_arg_type
))
7720 first_arg_type_unwrap
= TypeManager
.GetTypeArguments (first_arg_type
) [0];
7722 Type return_type_unwrap
= return_type
;
7723 if (TypeManager
.IsNullableType (return_type
))
7724 return_type_unwrap
= TypeManager
.GetTypeArguments (return_type
) [0];
7727 // Rules for conversion operators
7729 if (OperatorType
== OpType
.Implicit
|| OperatorType
== OpType
.Explicit
) {
7730 if (first_arg_type_unwrap
== return_type_unwrap
&& first_arg_type_unwrap
== declaring_type
){
7731 Report
.Error (555, Location
,
7732 "User-defined operator cannot take an object of the enclosing type and convert to an object of the enclosing type");
7737 if (TypeManager
.IsEqual (declaring_type
, return_type
) || declaring_type
== return_type_unwrap
) {
7738 conv_type
= first_arg_type
;
7739 } else if (TypeManager
.IsEqual (declaring_type
, first_arg_type
) || declaring_type
== first_arg_type_unwrap
) {
7740 conv_type
= return_type
;
7742 Report
.Error (556, Location
,
7743 "User-defined conversion must convert to or from the enclosing type");
7748 // Because IsInterface and IsClass are not supported
7750 if (!TypeManager
.IsGenericParameter (conv_type
)) {
7751 if (conv_type
.IsInterface
) {
7752 Report
.Error (552, Location
, "User-defined conversion `{0}' cannot convert to or from an interface type",
7753 GetSignatureForError ());
7757 if (conv_type
.IsClass
) {
7758 if (TypeManager
.IsSubclassOf (declaring_type
, conv_type
)) {
7759 Report
.Error (553, Location
, "User-defined conversion `{0}' cannot convert to or from a base class",
7760 GetSignatureForError ());
7764 if (TypeManager
.IsSubclassOf (conv_type
, declaring_type
)) {
7765 Report
.Error (554, Location
, "User-defined conversion `{0}' cannot convert to or from a derived class",
7766 GetSignatureForError ());
7771 } else if (OperatorType
== OpType
.LeftShift
|| OperatorType
== OpType
.RightShift
) {
7772 if (first_arg_type
!= declaring_type
|| Parameters
.Types
[1] != TypeManager
.int32_type
) {
7773 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");
7776 } else if (Parameters
.Count
== 1) {
7777 // Checks for Unary operators
7779 if (OperatorType
== OpType
.Increment
|| OperatorType
== OpType
.Decrement
) {
7780 if (return_type
!= declaring_type
&& !TypeManager
.IsSubclassOf (return_type
, declaring_type
)) {
7781 Report
.Error (448, Location
,
7782 "The return type for ++ or -- operator must be the containing type or derived from the containing type");
7785 if (first_arg_type
!= declaring_type
) {
7787 559, Location
, "The parameter type for ++ or -- operator must be the containing type");
7792 if (!TypeManager
.IsEqual (first_arg_type_unwrap
, declaring_type
)){
7793 Report
.Error (562, Location
,
7794 "The parameter type of a unary operator must be the containing type");
7798 if (OperatorType
== OpType
.True
|| OperatorType
== OpType
.False
) {
7799 if (return_type
!= TypeManager
.bool_type
){
7802 "The return type of operator True or False " +
7809 // Checks for Binary operators
7811 if (first_arg_type
!= declaring_type
&&
7812 Parameters
.Types
[1] != declaring_type
){
7815 "One of the parameters of a binary operator must " +
7816 "be the containing type");
7824 protected override bool ResolveMemberType ()
7826 if (!base.ResolveMemberType ())
7829 flags
|= MethodAttributes
.SpecialName
| MethodAttributes
.HideBySig
;
7833 // Operator cannot be override
7834 protected override MethodInfo
FindOutBaseMethod (ref Type base_ret_type
)
7839 public static string GetName (OpType ot
)
7841 return names
[(int) ot
] [0];
7844 public static string GetName (string metadata_name
)
7846 for (int i
= 0; i
< names
.Length
; ++i
) {
7847 if (names
[i
] [1] == metadata_name
)
7848 return names
[i
] [0];
7853 public static string GetMetadataName (OpType ot
)
7855 return names
[(int) ot
] [1];
7858 public static string GetMetadataName (string name
)
7860 for (int i
= 0; i
< names
.Length
; ++i
) {
7861 if (names
[i
] [0] == name
)
7862 return names
[i
] [1];
7867 public OpType
GetMatchingOperator ()
7869 switch (OperatorType
) {
7870 case OpType
.Equality
:
7871 return OpType
.Inequality
;
7872 case OpType
.Inequality
:
7873 return OpType
.Equality
;
7875 return OpType
.False
;
7878 case OpType
.GreaterThan
:
7879 return OpType
.LessThan
;
7880 case OpType
.LessThan
:
7881 return OpType
.GreaterThan
;
7882 case OpType
.GreaterThanOrEqual
:
7883 return OpType
.LessThanOrEqual
;
7884 case OpType
.LessThanOrEqual
:
7885 return OpType
.GreaterThanOrEqual
;
7891 public override string GetSignatureForError ()
7893 StringBuilder sb
= new StringBuilder ();
7894 if (OperatorType
== OpType
.Implicit
|| OperatorType
== OpType
.Explicit
) {
7895 sb
.AppendFormat ("{0}.{1} operator {2}",
7896 Parent
.GetSignatureForError (), GetName (OperatorType
), type_name
.GetSignatureForError ());
7899 sb
.AppendFormat ("{0}.operator {1}", Parent
.GetSignatureForError (), GetName (OperatorType
));
7902 sb
.Append (Parameters
.GetSignatureForError ());
7903 return sb
.ToString ();
7908 // This is used to compare method signatures
7910 struct MethodSignature
{
7912 public Type RetType
;
7913 public Type
[] Parameters
;
7916 /// This delegate is used to extract methods which have the
7917 /// same signature as the argument
7919 public static MemberFilter method_signature_filter
= new MemberFilter (MemberSignatureCompare
);
7921 public MethodSignature (string name
, Type ret_type
, Type
[] parameters
)
7926 if (parameters
== null)
7927 Parameters
= Type
.EmptyTypes
;
7929 Parameters
= parameters
;
7932 public override string ToString ()
7935 if (Parameters
.Length
!= 0){
7936 System
.Text
.StringBuilder sb
= new System
.Text
.StringBuilder ();
7937 for (int i
= 0; i
< Parameters
.Length
; i
++){
7938 sb
.Append (Parameters
[i
]);
7939 if (i
+1 < Parameters
.Length
)
7942 pars
= sb
.ToString ();
7945 return String
.Format ("{0} {1} ({2})", RetType
, Name
, pars
);
7948 public override int GetHashCode ()
7950 return Name
.GetHashCode ();
7953 public override bool Equals (Object o
)
7955 MethodSignature other
= (MethodSignature
) o
;
7957 if (other
.Name
!= Name
)
7960 if (other
.RetType
!= RetType
)
7963 if (Parameters
== null){
7964 if (other
.Parameters
== null)
7969 if (other
.Parameters
== null)
7972 int c
= Parameters
.Length
;
7973 if (other
.Parameters
.Length
!= c
)
7976 for (int i
= 0; i
< c
; i
++)
7977 if (other
.Parameters
[i
] != Parameters
[i
])
7983 static bool MemberSignatureCompare (MemberInfo m
, object filter_criteria
)
7985 MethodSignature sig
= (MethodSignature
) filter_criteria
;
7987 if (m
.Name
!= sig
.Name
)
7991 MethodInfo mi
= m
as MethodInfo
;
7992 PropertyInfo pi
= m
as PropertyInfo
;
7995 ReturnType
= mi
.ReturnType
;
7996 else if (pi
!= null)
7997 ReturnType
= pi
.PropertyType
;
8002 // we use sig.RetType == null to mean `do not check the
8003 // method return value.
8005 if (sig
.RetType
!= null) {
8006 if (!TypeManager
.IsEqual (ReturnType
, sig
.RetType
))
8012 args
= TypeManager
.GetParameterData (mi
).Types
;
8014 args
= TypeManager
.GetParameterData (pi
).Types
;
8015 Type
[] sigp
= sig
.Parameters
;
8017 if (args
.Length
!= sigp
.Length
)
8020 for (int i
= args
.Length
- 1; i
>= 0; i
--)
8021 if (!TypeManager
.IsEqual (args
[i
], sigp
[i
]))