2 // typemanager.cs: C# type manager
4 // Author: Miguel de Icaza (miguel@gnu.org)
5 // Ravi Pratap (ravi@ximian.com)
7 // Licensed under the terms of the GNU GPL
9 // (C) 2001 Ximian, Inc (http://www.ximian.com)
14 // We will eventually remove the SIMPLE_SPEEDUP, and should never change
15 // the behavior of the compilation. This can be removed if we rework
16 // the code to get a list of namespaces available.
18 #define SIMPLE_SPEEDUP
22 using System.Globalization;
23 using System.Collections;
24 using System.Reflection;
25 using System.Reflection.Emit;
27 using System.Text.RegularExpressions;
28 using System.Runtime.CompilerServices;
29 using System.Diagnostics;
31 namespace Mono.CSharp {
33 public class TypeManager {
35 // A list of core types that the compiler requires or uses
37 static public Type object_type;
38 static public Type value_type;
39 static public Type string_type;
40 static public Type int32_type;
41 static public Type uint32_type;
42 static public Type int64_type;
43 static public Type uint64_type;
44 static public Type float_type;
45 static public Type double_type;
46 static public Type char_type;
47 static public Type char_ptr_type;
48 static public Type short_type;
49 static public Type decimal_type;
50 static public Type bool_type;
51 static public Type sbyte_type;
52 static public Type byte_type;
53 static public Type ushort_type;
54 static public Type enum_type;
55 static public Type delegate_type;
56 static public Type multicast_delegate_type;
57 static public Type void_type;
58 static public Type enumeration_type;
59 static public Type array_type;
60 static public Type runtime_handle_type;
61 static public Type icloneable_type;
62 static public Type type_type;
63 static public Type ienumerator_type;
64 static public Type ienumerable_type;
65 static public Type idisposable_type;
66 static public Type default_member_type;
67 static public Type iasyncresult_type;
68 static public Type asynccallback_type;
69 static public Type intptr_type;
70 static public Type monitor_type;
71 static public Type runtime_field_handle_type;
72 static public Type attribute_type;
73 static public Type attribute_usage_type;
74 static public Type dllimport_type;
75 static public Type unverifiable_code_type;
76 static public Type methodimpl_attr_type;
77 static public Type marshal_as_attr_type;
78 static public Type param_array_type;
79 static public Type guid_attr_type;
80 static public Type void_ptr_type;
81 static public Type indexer_name_type;
82 static public Type exception_type;
83 static public Type invalid_operation_exception_type;
84 static public object obsolete_attribute_type;
85 static public object conditional_attribute_type;
86 static public Type in_attribute_type;
89 // An empty array of types
91 static public Type [] NoTypes;
92 static public TypeExpr [] NoTypeExprs;
96 // Expressions representing the internal types. Used during declaration
99 static public TypeExpr system_object_expr, system_string_expr;
100 static public TypeExpr system_boolean_expr, system_decimal_expr;
101 static public TypeExpr system_single_expr, system_double_expr;
102 static public TypeExpr system_sbyte_expr, system_byte_expr;
103 static public TypeExpr system_int16_expr, system_uint16_expr;
104 static public TypeExpr system_int32_expr, system_uint32_expr;
105 static public TypeExpr system_int64_expr, system_uint64_expr;
106 static public TypeExpr system_char_expr, system_void_expr;
107 static public TypeExpr system_asynccallback_expr;
108 static public TypeExpr system_iasyncresult_expr;
109 static public TypeExpr system_valuetype_expr;
112 // This is only used when compiling corlib
114 static public Type system_int32_type;
115 static public Type system_array_type;
116 static public Type system_type_type;
117 static public Type system_assemblybuilder_type;
118 static public MethodInfo system_int_array_get_length;
119 static public MethodInfo system_int_array_get_rank;
120 static public MethodInfo system_object_array_clone;
121 static public MethodInfo system_int_array_get_length_int;
122 static public MethodInfo system_int_array_get_lower_bound_int;
123 static public MethodInfo system_int_array_get_upper_bound_int;
124 static public MethodInfo system_void_array_copyto_array_int;
128 // Internal, not really used outside
130 static Type runtime_helpers_type;
133 // These methods are called by code generated by the compiler
135 static public MethodInfo string_concat_string_string;
136 static public MethodInfo string_concat_string_string_string;
137 static public MethodInfo string_concat_string_string_string_string;
138 static public MethodInfo string_concat_object_object;
139 static public MethodInfo string_isinterneted_string;
140 static public MethodInfo system_type_get_type_from_handle;
141 static public MethodInfo object_getcurrent_void;
142 static public MethodInfo bool_movenext_void;
143 static public MethodInfo ienumerable_getenumerator_void;
144 static public MethodInfo void_reset_void;
145 static public MethodInfo void_dispose_void;
146 static public MethodInfo void_monitor_enter_object;
147 static public MethodInfo void_monitor_exit_object;
148 static public MethodInfo void_initializearray_array_fieldhandle;
149 static public MethodInfo int_getlength_int;
150 static public MethodInfo delegate_combine_delegate_delegate;
151 static public MethodInfo delegate_remove_delegate_delegate;
152 static public MethodInfo int_get_offset_to_string_data;
153 static public MethodInfo int_array_get_length;
154 static public MethodInfo int_array_get_rank;
155 static public MethodInfo object_array_clone;
156 static public MethodInfo int_array_get_length_int;
157 static public MethodInfo int_array_get_lower_bound_int;
158 static public MethodInfo int_array_get_upper_bound_int;
159 static public MethodInfo void_array_copyto_array_int;
162 // The attribute constructors.
164 static public ConstructorInfo object_ctor;
165 static public ConstructorInfo cons_param_array_attribute;
166 static public ConstructorInfo void_decimal_ctor_five_args;
167 static public ConstructorInfo unverifiable_code_ctor;
168 static public ConstructorInfo invalid_operation_ctor;
171 // Holds the Array of Assemblies that have been loaded
172 // (either because it is the default or the user used the
173 // -r command line option)
175 static Assembly [] assemblies;
178 // Keeps a list of module builders. We used this to do lookups
179 // on the modulebuilder using GetType -- needed for arrays
181 static ModuleBuilder [] modules;
184 // This is the type_cache from the assemblies to avoid
185 // hitting System.Reflection on every lookup.
187 static Hashtable types;
190 // This is used to hotld the corresponding TypeContainer objects
191 // since we need this in FindMembers
193 static Hashtable typecontainers;
196 // Keeps track of those types that are defined by the
199 static ArrayList user_types;
201 static PtrHashtable builder_to_declspace;
204 // Tracks the interfaces implemented by typebuilders. We only
205 // enter those who do implement or or more interfaces
207 static PtrHashtable builder_to_ifaces;
210 // Maps MethodBase.RuntimeTypeHandle to a Type array that contains
211 // the arguments to the method
213 static Hashtable method_arguments;
216 // Maps PropertyBuilder to a Type array that contains
217 // the arguments to the indexer
219 static Hashtable indexer_arguments;
222 // Maybe `method_arguments' should be replaced and only
223 // method_internal_params should be kept?
225 static Hashtable method_internal_params;
228 // Keeps track of attribute types
231 static Hashtable builder_to_attr;
234 // Keeps track of methods
237 static Hashtable builder_to_method;
245 /// A filter for Findmembers that uses the Signature object to
248 static bool SignatureFilter (MemberInfo mi, object criteria)
250 Signature sig = (Signature) criteria;
252 if (!(mi is MethodBase))
255 if (mi.Name != sig.name)
258 int count = sig.args.Length;
260 if (mi is MethodBuilder || mi is ConstructorBuilder){
261 Type [] candidate_args = GetArgumentTypes ((MethodBase) mi);
263 if (candidate_args.Length != count)
266 for (int i = 0; i < count; i++)
267 if (candidate_args [i] != sig.args [i])
272 ParameterInfo [] pars = ((MethodBase) mi).GetParameters ();
274 if (pars.Length != count)
277 for (int i = 0; i < count; i++)
278 if (pars [i].ParameterType != sig.args [i])
284 // A delegate that points to the filter above.
285 static MemberFilter signature_filter;
288 // These are expressions that represent some of the internal data types, used
291 static void InitExpressionTypes ()
293 system_object_expr = new TypeLookupExpression ("System.Object");
294 system_string_expr = new TypeLookupExpression ("System.String");
295 system_boolean_expr = new TypeLookupExpression ("System.Boolean");
296 system_decimal_expr = new TypeLookupExpression ("System.Decimal");
297 system_single_expr = new TypeLookupExpression ("System.Single");
298 system_double_expr = new TypeLookupExpression ("System.Double");
299 system_sbyte_expr = new TypeLookupExpression ("System.SByte");
300 system_byte_expr = new TypeLookupExpression ("System.Byte");
301 system_int16_expr = new TypeLookupExpression ("System.Int16");
302 system_uint16_expr = new TypeLookupExpression ("System.UInt16");
303 system_int32_expr = new TypeLookupExpression ("System.Int32");
304 system_uint32_expr = new TypeLookupExpression ("System.UInt32");
305 system_int64_expr = new TypeLookupExpression ("System.Int64");
306 system_uint64_expr = new TypeLookupExpression ("System.UInt64");
307 system_char_expr = new TypeLookupExpression ("System.Char");
308 system_void_expr = new TypeLookupExpression ("System.Void");
309 system_asynccallback_expr = new TypeLookupExpression ("System.AsyncCallback");
310 system_iasyncresult_expr = new TypeLookupExpression ("System.IAsyncResult");
311 system_valuetype_expr = new TypeLookupExpression ("System.ValueType");
314 static TypeManager ()
316 assemblies = new Assembly [0];
318 user_types = new ArrayList ();
320 types = new Hashtable ();
321 typecontainers = new Hashtable ();
323 builder_to_declspace = new PtrHashtable ();
324 builder_to_attr = new PtrHashtable ();
325 builder_to_method = new PtrHashtable ();
326 method_arguments = new PtrHashtable ();
327 method_internal_params = new PtrHashtable ();
328 indexer_arguments = new PtrHashtable ();
329 builder_to_ifaces = new PtrHashtable ();
331 NoTypes = new Type [0];
332 NoTypeExprs = new TypeExpr [0];
334 signature_filter = new MemberFilter (SignatureFilter);
335 InitExpressionTypes ();
338 public static void HandleDuplicate (string name, Type t)
340 Type prev = (Type) types [name];
341 TypeContainer tc = builder_to_declspace [prev] as TypeContainer;
345 // This probably never happens, as we catch this before
347 Report.Error (-17, "The type `" + name + "' has already been defined.");
352 tc = builder_to_declspace [t] as TypeContainer;
355 1595, "The type `" + name + "' is defined in an existing assembly;"+
356 " Using the new definition from: " + tc.Location);
359 1595, "The type `" + name + "' is defined in an existing assembly;");
362 Report.Warning (1595, "Previously defined in: " + prev.Assembly.FullName);
368 public static void AddUserType (string name, TypeBuilder t, TypeExpr[] ifaces)
373 HandleDuplicate (name, t);
378 builder_to_ifaces [t] = ifaces;
382 // This entry point is used by types that we define under the covers
384 public static void RegisterBuilder (TypeBuilder tb, TypeExpr [] ifaces)
387 builder_to_ifaces [tb] = ifaces;
390 public static void AddUserType (string name, TypeBuilder t, TypeContainer tc, TypeExpr [] ifaces)
392 builder_to_declspace.Add (t, tc);
393 typecontainers.Add (name, tc);
394 AddUserType (name, t, ifaces);
397 public static void AddDelegateType (string name, TypeBuilder t, Delegate del)
402 HandleDuplicate (name, t);
405 builder_to_declspace.Add (t, del);
408 public static void AddEnumType (string name, TypeBuilder t, Enum en)
413 HandleDuplicate (name, t);
415 builder_to_declspace.Add (t, en);
418 public static void AddUserInterface (string name, TypeBuilder t, Interface i, TypeExpr [] ifaces)
420 AddUserType (name, t, ifaces);
421 builder_to_declspace.Add (t, i);
424 public static void AddMethod (MethodBuilder builder, MethodData method)
426 builder_to_method.Add (builder, method);
429 public static void RegisterAttrType (Type t, TypeContainer tc)
431 builder_to_attr.Add (t, tc);
435 /// Returns the DeclSpace whose Type is `t' or null if there is no
436 /// DeclSpace for `t' (ie, the Type comes from a library)
438 public static DeclSpace LookupDeclSpace (Type t)
440 return builder_to_declspace [t] as DeclSpace;
444 /// Returns the TypeContainer whose Type is `t' or null if there is no
445 /// TypeContainer for `t' (ie, the Type comes from a library)
447 public static TypeContainer LookupTypeContainer (Type t)
449 return builder_to_declspace [t] as TypeContainer;
452 public static IMemberContainer LookupMemberContainer (Type t)
454 if (t is TypeBuilder) {
455 IMemberContainer container = builder_to_declspace [t] as IMemberContainer;
456 if (container != null)
460 return TypeHandle.GetTypeHandle (t);
463 public static Interface LookupInterface (Type t)
465 return builder_to_declspace [t] as Interface;
468 public static Delegate LookupDelegate (Type t)
470 return builder_to_declspace [t] as Delegate;
473 public static Enum LookupEnum (Type t)
475 return builder_to_declspace [t] as Enum;
478 public static TypeContainer LookupAttr (Type t)
480 return (TypeContainer) builder_to_attr [t];
484 /// Registers an assembly to load types from.
486 public static void AddAssembly (Assembly a)
488 int top = assemblies.Length;
489 Assembly [] n = new Assembly [top + 1];
491 assemblies.CopyTo (n, 0);
498 /// Registers a module builder to lookup types from
500 public static void AddModule (ModuleBuilder mb)
502 int top = modules != null ? modules.Length : 0;
503 ModuleBuilder [] n = new ModuleBuilder [top + 1];
506 modules.CopyTo (n, 0);
511 static Hashtable references = new Hashtable ();
514 // Gets the reference to T version of the Type (T&)
516 public static Type GetReferenceType (Type t)
518 string tname = t.FullName + "&";
520 Type ret = t.Assembly.GetType (tname);
523 // If the type comes from the assembly we are building
524 // We need the Hashtable, because .NET 1.1 will return different instance types
525 // every time we call ModuleBuilder.GetType.
528 if (references [t] == null)
529 references [t] = CodeGen.ModuleBuilder.GetType (tname);
530 ret = (Type) references [t];
536 static Hashtable pointers = new Hashtable ();
539 // Gets the pointer to T version of the Type (T*)
541 public static Type GetPointerType (Type t)
543 string tname = t.FullName + "*";
545 Type ret = t.Assembly.GetType (tname);
548 // If the type comes from the assembly we are building
549 // We need the Hashtable, because .NET 1.1 will return different instance types
550 // every time we call ModuleBuilder.GetType.
553 if (pointers [t] == null)
554 pointers [t] = CodeGen.ModuleBuilder.GetType (tname);
556 ret = (Type) pointers [t];
563 // Low-level lookup, cache-less
565 static Type LookupTypeReflection (string name)
569 foreach (Assembly a in assemblies){
570 t = a.GetType (name);
575 TypeAttributes ta = t.Attributes & TypeAttributes.VisibilityMask;
576 if (ta == TypeAttributes.NotPublic ||
577 ta == TypeAttributes.NestedPrivate ||
578 ta == TypeAttributes.NestedAssembly ||
579 ta == TypeAttributes.NestedFamANDAssem){
582 // In .NET pointers turn out to be private, even if their
583 // element type is not
586 t = t.GetElementType ();
596 foreach (ModuleBuilder mb in modules) {
597 t = mb.GetType (name);
605 static Hashtable negative_hits = new Hashtable ();
608 // This function is used when you want to avoid the lookups, and want to go
609 // directly to the source. This will use the cache.
611 // Notice that bypassing the cache is bad, because on Microsoft.NET runtime
612 // GetType ("DynamicType[]") != GetType ("DynamicType[]"), and there is no
613 // way to test things other than doing a fullname compare
615 public static Type LookupTypeDirect (string name)
617 Type t = (Type) types [name];
621 t = LookupTypeReflection (name);
630 /// Returns the Type associated with @name, takes care of the fact that
631 /// reflection expects nested types to be separated from the main type
632 /// with a "+" instead of a "."
634 public static Type LookupType (string name)
639 // First lookup in user defined and cached values
642 t = (Type) types [name];
646 // Two thirds of the failures are caught here.
647 if (negative_hits.Contains (name))
650 string [] elements = name.Split ('.');
651 int count = elements.Length;
653 for (int n = 1; n <= count; n++){
654 string top_level_type = String.Join (".", elements, 0, n);
656 // One third of the failures are caught here.
657 if (negative_hits.Contains (top_level_type))
660 t = (Type) types [top_level_type];
662 t = LookupTypeReflection (top_level_type);
664 negative_hits [top_level_type] = true;
675 // We know that System.Object does not have children, and since its the parent of
676 // all the objects, it always gets probbed for inner classes.
678 if (top_level_type == "System.Object")
681 string newt = top_level_type + "+" + String.Join ("+", elements, n, count - n);
682 //Console.WriteLine ("Looking up: " + newt + " " + name);
683 t = LookupTypeReflection (newt);
685 negative_hits [name] = true;
690 negative_hits [name] = true;
695 /// Computes the namespaces that we import from the assemblies we reference.
697 public static void ComputeNamespaces ()
699 MethodInfo assembly_get_namespaces = typeof (Assembly).GetMethod ("GetNamespaces");
702 // First add the assembly namespaces
704 if (assembly_get_namespaces != null){
705 int count = assemblies.Length;
708 for (int i = 0; i < count; i++){
709 Assembly a = assemblies [i];
710 string [] namespaces = (string []) assembly_get_namespaces.Invoke (a, null);
711 foreach (string ns in namespaces){
714 Namespace.LookupNamespace (ns, true);
718 foreach (Assembly a in assemblies){
719 foreach (Type t in a.GetTypes ()){
720 string ns = t.Namespace;
722 // t.Namespace returns null for <PrivateImplDetails>
723 if (ns == ""|| ns == null)
725 Namespace.LookupNamespace (ns, true);
731 public static bool NamespaceClash (string name, Location loc)
733 if (Namespace.LookupNamespace (name, false) == null)
736 Report.Error (519, loc, String.Format ("`{0}' clashes with a predefined namespace", name));
741 /// Returns the C# name of a type if possible, or the full type name otherwise
743 static public string CSharpName (Type t)
745 return Regex.Replace (t.FullName,
747 @"(Int32|UInt32|Int16|UInt16|Int64|UInt64|" +
748 @"Single|Double|Char|Decimal|Byte|SByte|Object|" +
749 @"Boolean|String|Void)" +
751 new MatchEvaluator (CSharpNameMatch));
754 static String CSharpNameMatch (Match match)
756 string s = match.Groups [1].Captures [0].Value;
758 Replace ("int32", "int").
759 Replace ("uint32", "uint").
760 Replace ("int16", "short").
761 Replace ("uint16", "ushort").
762 Replace ("int64", "long").
763 Replace ("uint64", "ulong").
764 Replace ("single", "float").
765 Replace ("boolean", "bool")
766 + match.Groups [2].Captures [0].Value;
770 /// Returns the signature of the method
772 static public string CSharpSignature (MethodBase mb)
777 // FIXME: We should really have a single function to do
778 // everything instead of the following 5 line pattern
780 ParameterData iparams = LookupParametersByBuilder (mb);
782 if (iparams == null){
783 ParameterInfo [] pi = mb.GetParameters ();
784 iparams = new ReflectionParameters (pi);
787 for (int i = 0; i < iparams.Count; i++) {
791 sig += iparams.ParameterDesc(i);
795 return mb.DeclaringType.Name + "." + mb.Name + sig;
799 /// Looks up a type, and aborts if it is not found. This is used
800 /// by types required by the compiler
802 static Type CoreLookupType (string name)
804 Type t = LookupTypeDirect (name);
807 Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
808 Environment.Exit (0);
815 /// Returns the MethodInfo for a method named `name' defined
816 /// in type `t' which takes arguments of types `args'
818 static MethodInfo GetMethod (Type t, string name, Type [] args, bool report_errors)
826 list = FindMembers (t, MemberTypes.Method, instance_and_static | BindingFlags.Public,
827 signature_filter, sig);
828 if (list.Count == 0) {
830 Report.Error (-19, "Can not find the core function `" + name + "'");
834 MethodInfo mi = list [0] as MethodInfo;
837 Report.Error (-19, "Can not find the core function `" + name + "'");
844 static MethodInfo GetMethod (Type t, string name, Type [] args)
846 return GetMethod (t, name, args, true);
851 /// Returns the ConstructorInfo for "args"
853 static ConstructorInfo GetConstructor (Type t, Type [] args)
861 list = FindMembers (t, MemberTypes.Constructor,
862 instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly,
863 signature_filter, sig);
864 if (list.Count == 0){
865 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
869 ConstructorInfo ci = list [0] as ConstructorInfo;
871 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
878 public static void InitEnumUnderlyingTypes ()
881 int32_type = CoreLookupType ("System.Int32");
882 int64_type = CoreLookupType ("System.Int64");
883 uint32_type = CoreLookupType ("System.UInt32");
884 uint64_type = CoreLookupType ("System.UInt64");
885 byte_type = CoreLookupType ("System.Byte");
886 sbyte_type = CoreLookupType ("System.SByte");
887 short_type = CoreLookupType ("System.Int16");
888 ushort_type = CoreLookupType ("System.UInt16");
892 /// The types have to be initialized after the initial
893 /// population of the type has happened (for example, to
894 /// bootstrap the corlib.dll
896 public static void InitCoreTypes ()
898 object_type = CoreLookupType ("System.Object");
899 value_type = CoreLookupType ("System.ValueType");
901 InitEnumUnderlyingTypes ();
903 char_type = CoreLookupType ("System.Char");
904 string_type = CoreLookupType ("System.String");
905 float_type = CoreLookupType ("System.Single");
906 double_type = CoreLookupType ("System.Double");
907 char_ptr_type = CoreLookupType ("System.Char*");
908 decimal_type = CoreLookupType ("System.Decimal");
909 bool_type = CoreLookupType ("System.Boolean");
910 enum_type = CoreLookupType ("System.Enum");
912 multicast_delegate_type = CoreLookupType ("System.MulticastDelegate");
913 delegate_type = CoreLookupType ("System.Delegate");
915 array_type = CoreLookupType ("System.Array");
916 void_type = CoreLookupType ("System.Void");
917 type_type = CoreLookupType ("System.Type");
919 runtime_field_handle_type = CoreLookupType ("System.RuntimeFieldHandle");
920 runtime_helpers_type = CoreLookupType ("System.Runtime.CompilerServices.RuntimeHelpers");
921 default_member_type = CoreLookupType ("System.Reflection.DefaultMemberAttribute");
922 runtime_handle_type = CoreLookupType ("System.RuntimeTypeHandle");
923 asynccallback_type = CoreLookupType ("System.AsyncCallback");
924 iasyncresult_type = CoreLookupType ("System.IAsyncResult");
925 ienumerator_type = CoreLookupType ("System.Collections.IEnumerator");
926 ienumerable_type = CoreLookupType ("System.Collections.IEnumerable");
927 idisposable_type = CoreLookupType ("System.IDisposable");
928 icloneable_type = CoreLookupType ("System.ICloneable");
929 monitor_type = CoreLookupType ("System.Threading.Monitor");
930 intptr_type = CoreLookupType ("System.IntPtr");
932 attribute_type = CoreLookupType ("System.Attribute");
933 attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
934 dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
935 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
936 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
937 param_array_type = CoreLookupType ("System.ParamArrayAttribute");
938 in_attribute_type = CoreLookupType ("System.Runtime.InteropServices.InAttribute");
941 // Sigh. Remove this before the release. Wonder what versions of Mono
942 // people are running.
944 guid_attr_type = LookupType ("System.Runtime.InteropServices.GuidAttribute");
946 unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
948 void_ptr_type = CoreLookupType ("System.Void*");
950 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
952 exception_type = CoreLookupType ("System.Exception");
953 invalid_operation_exception_type = CoreLookupType ("System.InvalidOperationException");
958 obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
959 conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
962 // When compiling corlib, store the "real" types here.
964 if (!RootContext.StdLib) {
965 system_int32_type = typeof (System.Int32);
966 system_array_type = typeof (System.Array);
967 system_type_type = typeof (System.Type);
968 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
970 Type [] void_arg = { };
971 system_int_array_get_length = GetMethod (
972 system_array_type, "get_Length", void_arg);
973 system_int_array_get_rank = GetMethod (
974 system_array_type, "get_Rank", void_arg);
975 system_object_array_clone = GetMethod (
976 system_array_type, "Clone", void_arg);
978 Type [] system_int_arg = { system_int32_type };
979 system_int_array_get_length_int = GetMethod (
980 system_array_type, "GetLength", system_int_arg);
981 system_int_array_get_upper_bound_int = GetMethod (
982 system_array_type, "GetUpperBound", system_int_arg);
983 system_int_array_get_lower_bound_int = GetMethod (
984 system_array_type, "GetLowerBound", system_int_arg);
986 Type [] system_array_int_arg = { system_array_type, system_int32_type };
987 system_void_array_copyto_array_int = GetMethod (
988 system_array_type, "CopyTo", system_array_int_arg);
990 Type [] system_3_type_arg = {
991 system_type_type, system_type_type, system_type_type };
992 Type [] system_4_type_arg = {
993 system_type_type, system_type_type, system_type_type, system_type_type };
995 MethodInfo set_corlib_type_builders = GetMethod (
996 system_assemblybuilder_type, "SetCorlibTypeBuilders",
997 system_4_type_arg, false);
999 if (set_corlib_type_builders != null) {
1000 object[] args = new object [4];
1001 args [0] = object_type;
1002 args [1] = value_type;
1003 args [2] = enum_type;
1004 args [3] = void_type;
1006 set_corlib_type_builders.Invoke (CodeGen.AssemblyBuilder, args);
1008 // Compatibility for an older version of the class libs.
1009 set_corlib_type_builders = GetMethod (
1010 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1011 system_3_type_arg, true);
1013 if (set_corlib_type_builders == null) {
1014 Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
1018 object[] args = new object [3];
1019 args [0] = object_type;
1020 args [1] = value_type;
1021 args [2] = enum_type;
1023 set_corlib_type_builders.Invoke (CodeGen.AssemblyBuilder, args);
1027 system_object_expr.Type = object_type;
1028 system_string_expr.Type = string_type;
1029 system_boolean_expr.Type = bool_type;
1030 system_decimal_expr.Type = decimal_type;
1031 system_single_expr.Type = float_type;
1032 system_double_expr.Type = double_type;
1033 system_sbyte_expr.Type = sbyte_type;
1034 system_byte_expr.Type = byte_type;
1035 system_int16_expr.Type = short_type;
1036 system_uint16_expr.Type = ushort_type;
1037 system_int32_expr.Type = int32_type;
1038 system_uint32_expr.Type = uint32_type;
1039 system_int64_expr.Type = int64_type;
1040 system_uint64_expr.Type = uint64_type;
1041 system_char_expr.Type = char_type;
1042 system_void_expr.Type = void_type;
1043 system_asynccallback_expr.Type = asynccallback_type;
1044 system_iasyncresult_expr.Type = iasyncresult_type;
1045 system_valuetype_expr.Type = value_type;
1049 // The helper methods that are used by the compiler
1051 public static void InitCodeHelpers ()
1054 // Now load the default methods that we use.
1056 Type [] string_string = { string_type, string_type };
1057 string_concat_string_string = GetMethod (
1058 string_type, "Concat", string_string);
1059 Type [] string_string_string = { string_type, string_type, string_type };
1060 string_concat_string_string_string = GetMethod (
1061 string_type, "Concat", string_string_string);
1062 Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
1063 string_concat_string_string_string_string = GetMethod (
1064 string_type, "Concat", string_string_string_string);
1066 Type [] object_object = { object_type, object_type };
1067 string_concat_object_object = GetMethod (
1068 string_type, "Concat", object_object);
1070 Type [] string_ = { string_type };
1071 string_isinterneted_string = GetMethod (
1072 string_type, "IsInterned", string_);
1074 Type [] runtime_type_handle = { runtime_handle_type };
1075 system_type_get_type_from_handle = GetMethod (
1076 type_type, "GetTypeFromHandle", runtime_type_handle);
1078 Type [] delegate_delegate = { delegate_type, delegate_type };
1079 delegate_combine_delegate_delegate = GetMethod (
1080 delegate_type, "Combine", delegate_delegate);
1082 delegate_remove_delegate_delegate = GetMethod (
1083 delegate_type, "Remove", delegate_delegate);
1088 Type [] void_arg = { };
1089 object_getcurrent_void = GetMethod (
1090 ienumerator_type, "get_Current", void_arg);
1091 bool_movenext_void = GetMethod (
1092 ienumerator_type, "MoveNext", void_arg);
1093 void_reset_void = GetMethod (
1094 ienumerator_type, "Reset", void_arg);
1095 void_dispose_void = GetMethod (
1096 idisposable_type, "Dispose", void_arg);
1097 int_get_offset_to_string_data = GetMethod (
1098 runtime_helpers_type, "get_OffsetToStringData", void_arg);
1099 int_array_get_length = GetMethod (
1100 array_type, "get_Length", void_arg);
1101 int_array_get_rank = GetMethod (
1102 array_type, "get_Rank", void_arg);
1103 ienumerable_getenumerator_void = GetMethod (
1104 ienumerable_type, "GetEnumerator", void_arg);
1109 Type [] int_arg = { int32_type };
1110 int_array_get_length_int = GetMethod (
1111 array_type, "GetLength", int_arg);
1112 int_array_get_upper_bound_int = GetMethod (
1113 array_type, "GetUpperBound", int_arg);
1114 int_array_get_lower_bound_int = GetMethod (
1115 array_type, "GetLowerBound", int_arg);
1118 // System.Array methods
1120 object_array_clone = GetMethod (
1121 array_type, "Clone", void_arg);
1122 Type [] array_int_arg = { array_type, int32_type };
1123 void_array_copyto_array_int = GetMethod (
1124 array_type, "CopyTo", array_int_arg);
1129 Type [] object_arg = { object_type };
1130 void_monitor_enter_object = GetMethod (
1131 monitor_type, "Enter", object_arg);
1132 void_monitor_exit_object = GetMethod (
1133 monitor_type, "Exit", object_arg);
1135 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1137 void_initializearray_array_fieldhandle = GetMethod (
1138 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1143 int_getlength_int = GetMethod (
1144 array_type, "GetLength", int_arg);
1147 // Decimal constructors
1149 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1150 void_decimal_ctor_five_args = GetConstructor (
1151 decimal_type, dec_arg);
1156 cons_param_array_attribute = GetConstructor (
1157 param_array_type, void_arg);
1159 unverifiable_code_ctor = GetConstructor (
1160 unverifiable_code_type, void_arg);
1163 // InvalidOperationException
1165 invalid_operation_ctor = GetConstructor (
1166 invalid_operation_exception_type, void_arg);
1170 object_ctor = GetConstructor (object_type, void_arg);
1174 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1176 static Hashtable type_hash = new Hashtable ();
1179 /// This is the "old", non-cache based FindMembers() function. We cannot use
1180 /// the cache here because there is no member name argument.
1182 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1183 MemberFilter filter, object criteria)
1185 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1188 // `builder_to_declspace' contains all dynamic types.
1192 Timer.StartTimer (TimerType.FindMembers);
1193 list = decl.FindMembers (mt, bf, filter, criteria);
1194 Timer.StopTimer (TimerType.FindMembers);
1199 // We have to take care of arrays specially, because GetType on
1200 // a TypeBuilder array will return a Type, not a TypeBuilder,
1201 // and we can not call FindMembers on this type.
1203 if (t.IsSubclassOf (TypeManager.array_type))
1204 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1207 // Since FindMembers will not lookup both static and instance
1208 // members, we emulate this behaviour here.
1210 if ((bf & instance_and_static) == instance_and_static){
1211 MemberInfo [] i_members = t.FindMembers (
1212 mt, bf & ~BindingFlags.Static, filter, criteria);
1214 int i_len = i_members.Length;
1216 MemberInfo one = i_members [0];
1219 // If any of these are present, we are done!
1221 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1222 return new MemberList (i_members);
1225 MemberInfo [] s_members = t.FindMembers (
1226 mt, bf & ~BindingFlags.Instance, filter, criteria);
1228 int s_len = s_members.Length;
1229 if (i_len > 0 || s_len > 0)
1230 return new MemberList (i_members, s_members);
1233 return new MemberList (i_members);
1235 return new MemberList (s_members);
1239 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1244 /// This method is only called from within MemberLookup. It tries to use the member
1245 /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
1246 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1247 /// our return value will already contain all inherited members and the caller don't need
1248 /// to check base classes and interfaces anymore.
1250 private static MemberList MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1251 string name, out bool used_cache)
1253 bool not_loaded_corlib = (t.Assembly == CodeGen.AssemblyBuilder);
1256 // We have to take care of arrays specially, because GetType on
1257 // a TypeBuilder array will return a Type, not a TypeBuilder,
1258 // and we can not call FindMembers on this type.
1260 if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
1262 return TypeHandle.ArrayType.MemberCache.FindMembers (
1263 mt, bf, name, FilterWithClosure_delegate, null);
1267 // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
1268 // and we can ask the DeclSpace for the MemberCache.
1270 if (t is TypeBuilder) {
1271 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1272 MemberCache cache = decl.MemberCache;
1275 // If this DeclSpace has a MemberCache, use it.
1278 if (cache != null) {
1280 return cache.FindMembers (
1281 mt, bf, name, FilterWithClosure_delegate, null);
1284 // If there is no MemberCache, we need to use the "normal" FindMembers.
1287 Timer.StartTimer (TimerType.FindMembers);
1288 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
1289 FilterWithClosure_delegate, name);
1290 Timer.StopTimer (TimerType.FindMembers);
1296 // This call will always succeed. There is exactly one TypeHandle instance per
1297 // type, TypeHandle.GetTypeHandle() will either return it or create a new one
1298 // if it didn't already exist.
1300 TypeHandle handle = TypeHandle.GetTypeHandle (t);
1303 return handle.MemberCache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1306 public static bool IsBuiltinType (Type t)
1308 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1309 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1310 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1311 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
1318 // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
1319 // the pieces in the code where we use IsBuiltinType and special case decimal_type.
1321 public static bool IsCLRType (Type t)
1323 if (t == object_type || t == int32_type || t == uint32_type ||
1324 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1325 t == char_type || t == short_type || t == bool_type ||
1326 t == sbyte_type || t == byte_type || t == ushort_type)
1332 public static bool IsDelegateType (Type t)
1334 if (t.IsSubclassOf (TypeManager.delegate_type))
1340 public static bool IsEnumType (Type t)
1342 if (t == TypeManager.enum_type || t.IsSubclassOf (TypeManager.enum_type))
1347 public static bool IsBuiltinOrEnum (Type t)
1349 if (IsBuiltinType (t))
1359 // Only a quick hack to get things moving, while real runtime support appears
1361 public static bool IsGeneric (Type t)
1363 DeclSpace ds = (DeclSpace) builder_to_declspace [t];
1365 return ds.IsGeneric;
1369 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1371 public static bool IsUnmanagedType (Type t)
1373 if (IsBuiltinType (t) && t != TypeManager.string_type)
1382 if (IsValueType (t)){
1383 if (t is TypeBuilder){
1384 TypeContainer tc = LookupTypeContainer (t);
1386 foreach (Field f in tc.Fields){
1387 if (f.FieldBuilder.IsStatic)
1389 if (!IsUnmanagedType (f.FieldBuilder.FieldType))
1393 FieldInfo [] fields = t.GetFields ();
1395 foreach (FieldInfo f in fields){
1398 if (!IsUnmanagedType (f.FieldType))
1408 public static bool IsValueType (Type t)
1410 return t.IsGenericParameter || t.IsValueType;
1413 public static bool IsInterfaceType (Type t)
1415 Interface iface = builder_to_declspace [t] as Interface;
1424 // Checks whether `type' is a subclass or nested child of `parent'.
1426 public static bool IsSubclassOrNestedChildOf (Type type, Type parent)
1429 if ((type == parent) || type.IsSubclassOf (parent))
1432 // Handle nested types.
1433 type = type.DeclaringType;
1434 } while (type != null);
1440 // Checks whether `type' is a nested child of `parent'.
1442 public static bool IsNestedChildOf (Type type, Type parent)
1447 type = type.DeclaringType;
1448 while (type != null) {
1452 type = type.DeclaringType;
1459 // Do the right thing when returning the element type of an
1460 // array type based on whether we are compiling corlib or not
1462 public static Type GetElementType (Type t)
1464 if (RootContext.StdLib)
1465 return t.GetElementType ();
1467 return TypeToCoreType (t.GetElementType ());
1471 /// Returns the User Defined Types
1473 public static ArrayList UserTypes {
1479 public static Hashtable TypeContainers {
1481 return typecontainers;
1485 static Hashtable attr_to_allowmult;
1487 public static void RegisterAttributeAllowMultiple (Type attr_type, bool allow)
1489 if (attr_to_allowmult == null)
1490 attr_to_allowmult = new PtrHashtable ();
1492 if (attr_to_allowmult.Contains (attr_type))
1495 attr_to_allowmult.Add (attr_type, allow);
1499 public static bool AreMultipleAllowed (Type attr_type)
1501 if (!(attr_type is TypeBuilder)) {
1502 System.Attribute [] attrs = System.Attribute.GetCustomAttributes (attr_type);
1504 foreach (System.Attribute tmp in attrs)
1505 if (tmp is AttributeUsageAttribute) {
1506 return ((AttributeUsageAttribute) tmp).AllowMultiple;
1512 if (attr_to_allowmult == null)
1515 return (bool) attr_to_allowmult [attr_type];
1518 static Hashtable builder_to_constant;
1520 public static void RegisterConstant (FieldBuilder fb, Const c)
1522 if (builder_to_constant == null)
1523 builder_to_constant = new PtrHashtable ();
1525 if (builder_to_constant.Contains (fb))
1528 builder_to_constant.Add (fb, c);
1531 public static Const LookupConstant (FieldBuilder fb)
1533 if (builder_to_constant == null)
1536 return (Const) builder_to_constant [fb];
1540 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1544 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1545 /// for anything which is dynamic, and we need this in a number of places,
1546 /// we register this information here, and use it afterwards.
1548 static public bool RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1553 method_arguments.Add (mb, args);
1554 method_internal_params.Add (mb, ip);
1559 static public InternalParameters LookupParametersByBuilder (MethodBase mb)
1561 if (! (mb is ConstructorBuilder || mb is MethodBuilder))
1564 if (method_internal_params.Contains (mb))
1565 return (InternalParameters) method_internal_params [mb];
1567 throw new Exception ("Argument for Method not registered" + mb);
1571 /// Returns the argument types for a method based on its methodbase
1573 /// For dynamic methods, we use the compiler provided types, for
1574 /// methods from existing assemblies we load them from GetParameters,
1575 /// and insert them into the cache
1577 static public Type [] GetArgumentTypes (MethodBase mb)
1579 if (method_arguments.Contains (mb))
1580 return (Type []) method_arguments [mb];
1582 ParameterInfo [] pi = mb.GetParameters ();
1584 Type [] types = new Type [c];
1586 for (int i = 0; i < c; i++)
1587 types [i] = pi [i].ParameterType;
1589 method_arguments.Add (mb, types);
1595 /// Returns the argument types for an indexer based on its PropertyInfo
1597 /// For dynamic indexers, we use the compiler provided types, for
1598 /// indexers from existing assemblies we load them from GetParameters,
1599 /// and insert them into the cache
1601 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1603 if (indexer_arguments.Contains (indexer))
1604 return (Type []) indexer_arguments [indexer];
1605 else if (indexer is PropertyBuilder)
1606 // If we're a PropertyBuilder and not in the
1607 // `indexer_arguments' hash, then we're a property and
1611 ParameterInfo [] pi = indexer.GetIndexParameters ();
1612 // Property, not an indexer.
1616 Type [] types = new Type [c];
1618 for (int i = 0; i < c; i++)
1619 types [i] = pi [i].ParameterType;
1621 indexer_arguments.Add (indexer, types);
1627 // This is a workaround the fact that GetValue is not
1628 // supported for dynamic types
1630 static Hashtable fields = new Hashtable ();
1631 static public bool RegisterFieldValue (FieldBuilder fb, object value)
1633 if (fields.Contains (fb))
1636 fields.Add (fb, value);
1641 static public object GetValue (FieldBuilder fb)
1646 static Hashtable fieldbuilders_to_fields = new Hashtable ();
1647 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1649 if (fieldbuilders_to_fields.Contains (fb))
1652 fieldbuilders_to_fields.Add (fb, f);
1657 // The return value can be null; This will be the case for
1658 // auxiliary FieldBuilders created by the compiler that have no
1659 // real field being declared on the source code
1661 static public FieldBase GetField (FieldInfo fb)
1663 return (FieldBase) fieldbuilders_to_fields [fb];
1666 static Hashtable events;
1668 static public bool RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1671 events = new Hashtable ();
1673 if (events.Contains (eb))
1676 events.Add (eb, new Pair (add, remove));
1681 static public MethodInfo GetAddMethod (EventInfo ei)
1683 if (ei is MyEventBuilder) {
1684 Pair pair = (Pair) events [ei];
1686 return (MethodInfo) pair.First;
1688 return ei.GetAddMethod ();
1691 static public MethodInfo GetRemoveMethod (EventInfo ei)
1693 if (ei is MyEventBuilder) {
1694 Pair pair = (Pair) events [ei];
1696 return (MethodInfo) pair.Second;
1698 return ei.GetRemoveMethod ();
1701 static Hashtable priv_fields_events;
1703 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1705 if (priv_fields_events == null)
1706 priv_fields_events = new Hashtable ();
1708 if (priv_fields_events.Contains (einfo))
1711 priv_fields_events.Add (einfo, builder);
1716 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1718 if (priv_fields_events == null)
1721 return (MemberInfo) priv_fields_events [ei];
1724 static Hashtable properties;
1726 static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase set)
1728 if (properties == null)
1729 properties = new Hashtable ();
1731 if (properties.Contains (pb))
1734 properties.Add (pb, new Pair (get, set));
1739 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get,
1740 MethodBase set, Type[] args)
1742 if (!RegisterProperty (pb, get,set))
1745 indexer_arguments.Add (pb, args);
1751 /// Given an array of interface types, expand and eliminate repeated ocurrences
1752 /// of an interface.
1756 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
1759 public static TypeExpr[] ExpandInterfaces (TypeExpr [] base_interfaces)
1761 ArrayList new_ifaces = new ArrayList ();
1763 foreach (TypeExpr iface in base_interfaces){
1764 if (!new_ifaces.Contains (iface))
1765 new_ifaces.Add (iface);
1767 TypeExpr [] implementing = iface.GetInterfaces ();
1769 foreach (TypeExpr imp in implementing){
1770 if (!new_ifaces.Contains (imp))
1771 new_ifaces.Add (imp);
1774 TypeExpr [] ret = new TypeExpr [new_ifaces.Count];
1775 new_ifaces.CopyTo (ret, 0);
1780 /// This function returns the interfaces in the type `t'. Works with
1781 /// both types and TypeBuilders.
1783 public static TypeExpr [] GetInterfaces (Type t)
1786 // The reason for catching the Array case is that Reflection.Emit
1787 // will not return a TypeBuilder for Array types of TypeBuilder types,
1788 // but will still throw an exception if we try to call GetInterfaces
1791 // Since the array interfaces are always constant, we return those for
1796 t = TypeManager.array_type;
1798 if (t is TypeBuilder){
1799 TypeExpr [] parent_ifaces;
1801 if (t.BaseType == null)
1802 parent_ifaces = NoTypeExprs;
1804 parent_ifaces = GetInterfaces (t.BaseType);
1805 TypeExpr [] type_ifaces = (TypeExpr []) builder_to_ifaces [t];
1806 if (type_ifaces == null)
1807 type_ifaces = NoTypeExprs;
1809 int parent_count = parent_ifaces.Length;
1810 TypeExpr [] result = new TypeExpr [parent_count + type_ifaces.Length];
1811 parent_ifaces.CopyTo (result, 0);
1812 type_ifaces.CopyTo (result, parent_count);
1816 Type [] ifaces = t.GetInterfaces ();
1818 TypeExpr [] result = new TypeExpr [ifaces.Length];
1819 for (int i = 0; i < ifaces.Length; i++)
1820 result [i] = new TypeExpression (ifaces [i], Location.Null);
1826 /// The following is used to check if a given type implements an interface.
1827 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
1829 public static bool ImplementsInterface (Type t, Type iface)
1831 TypeExpr [] interfaces;
1834 // FIXME OPTIMIZATION:
1835 // as soon as we hit a non-TypeBuiler in the interface
1836 // chain, we could return, as the `Type.GetInterfaces'
1837 // will return all the interfaces implement by the type
1841 interfaces = GetInterfaces (t);
1843 if (interfaces != null){
1844 foreach (TypeExpr i in interfaces){
1845 if (i.Type == iface)
1851 } while (t != null);
1856 static NumberFormatInfo nf_provider = CultureInfo.CurrentCulture.NumberFormat;
1858 // This is a custom version of Convert.ChangeType() which works
1859 // with the TypeBuilder defined types when compiling corlib.
1860 public static object ChangeType (object value, Type conversionType, out bool error)
1862 IConvertible convert_value = value as IConvertible;
1864 if (convert_value == null){
1870 // We must use Type.Equals() here since `conversionType' is
1871 // the TypeBuilder created version of a system type and not
1872 // the system type itself. You cannot use Type.GetTypeCode()
1873 // on such a type - it'd always return TypeCode.Object.
1877 if (conversionType.Equals (typeof (Boolean)))
1878 return (object)(convert_value.ToBoolean (nf_provider));
1879 else if (conversionType.Equals (typeof (Byte)))
1880 return (object)(convert_value.ToByte (nf_provider));
1881 else if (conversionType.Equals (typeof (Char)))
1882 return (object)(convert_value.ToChar (nf_provider));
1883 else if (conversionType.Equals (typeof (DateTime)))
1884 return (object)(convert_value.ToDateTime (nf_provider));
1885 else if (conversionType.Equals (typeof (Decimal)))
1886 return (object)(convert_value.ToDecimal (nf_provider));
1887 else if (conversionType.Equals (typeof (Double)))
1888 return (object)(convert_value.ToDouble (nf_provider));
1889 else if (conversionType.Equals (typeof (Int16)))
1890 return (object)(convert_value.ToInt16 (nf_provider));
1891 else if (conversionType.Equals (typeof (Int32)))
1892 return (object)(convert_value.ToInt32 (nf_provider));
1893 else if (conversionType.Equals (typeof (Int64)))
1894 return (object)(convert_value.ToInt64 (nf_provider));
1895 else if (conversionType.Equals (typeof (SByte)))
1896 return (object)(convert_value.ToSByte (nf_provider));
1897 else if (conversionType.Equals (typeof (Single)))
1898 return (object)(convert_value.ToSingle (nf_provider));
1899 else if (conversionType.Equals (typeof (String)))
1900 return (object)(convert_value.ToString (nf_provider));
1901 else if (conversionType.Equals (typeof (UInt16)))
1902 return (object)(convert_value.ToUInt16 (nf_provider));
1903 else if (conversionType.Equals (typeof (UInt32)))
1904 return (object)(convert_value.ToUInt32 (nf_provider));
1905 else if (conversionType.Equals (typeof (UInt64)))
1906 return (object)(convert_value.ToUInt64 (nf_provider));
1907 else if (conversionType.Equals (typeof (Object)))
1908 return (object)(value);
1918 // This is needed, because enumerations from assemblies
1919 // do not report their underlyingtype, but they report
1922 public static Type EnumToUnderlying (Type t)
1924 if (t == TypeManager.enum_type)
1927 t = t.UnderlyingSystemType;
1928 if (!TypeManager.IsEnumType (t))
1931 if (t is TypeBuilder) {
1932 // slow path needed to compile corlib
1933 if (t == TypeManager.bool_type ||
1934 t == TypeManager.byte_type ||
1935 t == TypeManager.sbyte_type ||
1936 t == TypeManager.char_type ||
1937 t == TypeManager.short_type ||
1938 t == TypeManager.ushort_type ||
1939 t == TypeManager.int32_type ||
1940 t == TypeManager.uint32_type ||
1941 t == TypeManager.int64_type ||
1942 t == TypeManager.uint64_type)
1944 throw new Exception ("Unhandled typecode in enum " + " from " + t.AssemblyQualifiedName);
1946 TypeCode tc = Type.GetTypeCode (t);
1949 case TypeCode.Boolean:
1950 return TypeManager.bool_type;
1952 return TypeManager.byte_type;
1953 case TypeCode.SByte:
1954 return TypeManager.sbyte_type;
1956 return TypeManager.char_type;
1957 case TypeCode.Int16:
1958 return TypeManager.short_type;
1959 case TypeCode.UInt16:
1960 return TypeManager.ushort_type;
1961 case TypeCode.Int32:
1962 return TypeManager.int32_type;
1963 case TypeCode.UInt32:
1964 return TypeManager.uint32_type;
1965 case TypeCode.Int64:
1966 return TypeManager.int64_type;
1967 case TypeCode.UInt64:
1968 return TypeManager.uint64_type;
1970 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
1974 // When compiling corlib and called with one of the core types, return
1975 // the corresponding typebuilder for that type.
1977 public static Type TypeToCoreType (Type t)
1979 if (RootContext.StdLib || (t is TypeBuilder))
1982 TypeCode tc = Type.GetTypeCode (t);
1985 case TypeCode.Boolean:
1986 return TypeManager.bool_type;
1988 return TypeManager.byte_type;
1989 case TypeCode.SByte:
1990 return TypeManager.sbyte_type;
1992 return TypeManager.char_type;
1993 case TypeCode.Int16:
1994 return TypeManager.short_type;
1995 case TypeCode.UInt16:
1996 return TypeManager.ushort_type;
1997 case TypeCode.Int32:
1998 return TypeManager.int32_type;
1999 case TypeCode.UInt32:
2000 return TypeManager.uint32_type;
2001 case TypeCode.Int64:
2002 return TypeManager.int64_type;
2003 case TypeCode.UInt64:
2004 return TypeManager.uint64_type;
2005 case TypeCode.Single:
2006 return TypeManager.float_type;
2007 case TypeCode.Double:
2008 return TypeManager.double_type;
2009 case TypeCode.String:
2010 return TypeManager.string_type;
2012 if (t == typeof (void))
2013 return TypeManager.void_type;
2014 if (t == typeof (object))
2015 return TypeManager.object_type;
2016 if (t == typeof (System.Type))
2017 return TypeManager.type_type;
2023 /// Utility function that can be used to probe whether a type
2024 /// is managed or not.
2026 public static bool VerifyUnManaged (Type t, Location loc)
2028 if (t.IsValueType || t.IsPointer){
2030 // FIXME: this is more complex, we actually need to
2031 // make sure that the type does not contain any
2037 if (!RootContext.StdLib && (t == TypeManager.decimal_type))
2038 // We need this explicit check here to make it work when
2039 // compiling corlib.
2044 "Cannot take the address or size of a variable of a managed type ('" +
2045 CSharpName (t) + "')");
2050 /// Returns the name of the indexer in a given type.
2053 /// The default is not always `Item'. The user can change this behaviour by
2054 /// using the DefaultMemberAttribute in the class.
2056 /// For example, the String class indexer is named `Chars' not `Item'
2058 public static string IndexerPropertyName (Type t)
2060 if (t is TypeBuilder) {
2061 if (t.IsInterface) {
2062 Interface i = LookupInterface (t);
2064 if ((i == null) || (i.IndexerName == null))
2067 return i.IndexerName;
2069 TypeContainer tc = LookupTypeContainer (t);
2071 if ((tc == null) || (tc.IndexerName == null))
2074 return tc.IndexerName;
2078 System.Attribute attr = System.Attribute.GetCustomAttribute (
2079 t, TypeManager.default_member_type);
2081 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
2082 return dma.MemberName;
2088 public static void MakePinned (LocalBuilder builder)
2091 // FIXME: Flag the "LocalBuilder" type as being
2092 // pinned. Figure out API.
2098 // Returns whether the array of memberinfos contains the given method
2100 public static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
2102 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
2104 foreach (MethodBase method in array) {
2105 if (method.Name != new_method.Name)
2108 if (method is MethodInfo && new_method is MethodInfo)
2109 if (((MethodInfo) method).ReturnType != ((MethodInfo) new_method).ReturnType)
2113 Type [] old_args = TypeManager.GetArgumentTypes (method);
2114 int old_count = old_args.Length;
2117 if (new_args.Length != old_count)
2120 for (i = 0; i < old_count; i++){
2121 if (old_args [i] != new_args [i])
2134 // We copy methods from `new_members' into `target_list' if the signature
2135 // for the method from in the new list does not exist in the target_list
2137 // The name is assumed to be the same.
2139 public static ArrayList CopyNewMethods (ArrayList target_list, MemberList new_members)
2141 if (target_list == null){
2142 target_list = new ArrayList ();
2144 foreach (MemberInfo mi in new_members){
2145 if (mi is MethodBase)
2146 target_list.Add (mi);
2151 MemberInfo [] target_array = new MemberInfo [target_list.Count];
2152 target_list.CopyTo (target_array, 0);
2154 foreach (MemberInfo mi in new_members){
2155 MethodBase new_method = (MethodBase) mi;
2157 if (!ArrayContainsMethod (target_array, new_method))
2158 target_list.Add (new_method);
2164 public enum MethodFlags {
2166 IsObsoleteError = 1 << 1,
2167 ShouldIgnore = 1 << 2
2171 // Returns the TypeManager.MethodFlags for this method.
2172 // This emits an error 619 / warning 618 if the method is obsolete.
2173 // In the former case, TypeManager.MethodFlags.IsObsoleteError is returned.
2175 static public MethodFlags GetMethodFlags (MethodBase mb, Location loc)
2177 MethodFlags flags = 0;
2179 if (mb.DeclaringType is TypeBuilder){
2180 MethodData method = (MethodData) builder_to_method [mb];
2181 if (method == null) {
2182 // FIXME: implement Obsolete attribute on Property,
2183 // Indexer and Event.
2187 return method.GetMethodFlags (loc);
2191 if (mb.IsInflatedGeneric) {
2192 MethodBase generic = mb.GetGenericMethodDefinition ();
2194 return GetMethodFlags (generic, loc);
2198 object [] attrs = mb.GetCustomAttributes (true);
2199 foreach (object ta in attrs){
2200 if (!(ta is System.Attribute)){
2201 Console.WriteLine ("Unknown type in GetMethodFlags: " + ta);
2204 System.Attribute a = (System.Attribute) ta;
2205 if (a.TypeId == TypeManager.obsolete_attribute_type){
2206 ObsoleteAttribute oa = (ObsoleteAttribute) a;
2208 string method_desc = TypeManager.CSharpSignature (mb);
2211 Report.Error (619, loc, "Method `" + method_desc +
2212 "' is obsolete: `" + oa.Message + "'");
2213 return MethodFlags.IsObsoleteError;
2215 Report.Warning (618, loc, "Method `" + method_desc +
2216 "' is obsolete: `" + oa.Message + "'");
2218 flags |= MethodFlags.IsObsolete;
2224 // Skip over conditional code.
2226 if (a.TypeId == TypeManager.conditional_attribute_type){
2227 ConditionalAttribute ca = (ConditionalAttribute) a;
2229 if (RootContext.AllDefines [ca.ConditionString] == null)
2230 flags |= MethodFlags.ShouldIgnore;
2237 #region MemberLookup implementation
2240 // Name of the member
2242 static string closure_name;
2245 // Whether we allow private members in the result (since FindMembers
2246 // uses NonPublic for both protected and private), we need to distinguish.
2248 static bool closure_private_ok;
2251 // Who is invoking us and which type is being queried currently.
2253 static Type closure_invocation_type;
2254 static Type closure_queried_type;
2255 static Type closure_qualifier_type;
2258 // The assembly that defines the type is that is calling us
2260 static Assembly closure_invocation_assembly;
2262 static internal bool FilterNone (MemberInfo m, object filter_criteria)
2268 // This filter filters by name + whether it is ok to include private
2269 // members in the search
2271 static internal bool FilterWithClosure (MemberInfo m, object filter_criteria)
2274 // Hack: we know that the filter criteria will always be in the `closure'
2278 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2281 if (((closure_qualifier_type == null) || (closure_qualifier_type == closure_invocation_type)) &&
2282 (m.DeclaringType == closure_invocation_type))
2286 // Ugly: we need to find out the type of `m', and depending
2287 // on this, tell whether we accept or not
2289 if (m is MethodBase){
2290 MethodBase mb = (MethodBase) m;
2291 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2293 if (ma == MethodAttributes.Private)
2294 return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
2295 IsNestedChildOf (closure_invocation_type, m.DeclaringType);
2298 // FamAndAssem requires that we not only derivate, but we are on the
2301 if (ma == MethodAttributes.FamANDAssem){
2302 if (closure_invocation_assembly != mb.DeclaringType.Assembly)
2306 // Assembly and FamORAssem succeed if we're in the same assembly.
2307 if ((ma == MethodAttributes.Assembly) || (ma == MethodAttributes.FamORAssem)){
2308 if (closure_invocation_assembly == mb.DeclaringType.Assembly)
2312 // We already know that we aren't in the same assembly.
2313 if (ma == MethodAttributes.Assembly)
2316 // Family and FamANDAssem require that we derive.
2317 if ((ma == MethodAttributes.Family) || (ma == MethodAttributes.FamANDAssem)){
2318 if (closure_invocation_type == null)
2321 if (!IsSubclassOrNestedChildOf (closure_invocation_type, mb.DeclaringType))
2324 // Although a derived class can access protected members of its base class
2325 // it cannot do so through an instance of the base class (CS1540).
2326 if (!mb.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
2327 (closure_qualifier_type != null) &&
2328 closure_invocation_type.IsSubclassOf (closure_qualifier_type))
2338 if (m is FieldInfo){
2339 FieldInfo fi = (FieldInfo) m;
2340 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2342 if (fa == FieldAttributes.Private)
2343 return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
2344 IsNestedChildOf (closure_invocation_type, m.DeclaringType);
2347 // FamAndAssem requires that we not only derivate, but we are on the
2350 if (fa == FieldAttributes.FamANDAssem){
2351 if (closure_invocation_assembly != fi.DeclaringType.Assembly)
2355 // Assembly and FamORAssem succeed if we're in the same assembly.
2356 if ((fa == FieldAttributes.Assembly) || (fa == FieldAttributes.FamORAssem)){
2357 if (closure_invocation_assembly == fi.DeclaringType.Assembly)
2361 // We already know that we aren't in the same assembly.
2362 if (fa == FieldAttributes.Assembly)
2365 // Family and FamANDAssem require that we derive.
2366 if ((fa == FieldAttributes.Family) || (fa == FieldAttributes.FamANDAssem)){
2367 if (closure_invocation_type == null)
2370 if (!IsSubclassOrNestedChildOf (closure_invocation_type, fi.DeclaringType))
2373 // Although a derived class can access protected members of its base class
2374 // it cannot do so through an instance of the base class (CS1540).
2375 if (!fi.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
2376 (closure_qualifier_type != null) &&
2377 closure_invocation_type.IsSubclassOf (closure_qualifier_type))
2388 // EventInfos and PropertyInfos, return true because they lack permission
2389 // informaiton, so we need to check later on the methods.
2394 static MemberFilter FilterWithClosure_delegate = new MemberFilter (FilterWithClosure);
2395 static MemberFilter FilterNone_delegate = new MemberFilter (FilterNone);
2398 // Looks up a member called `name' in the `queried_type'. This lookup
2399 // is done by code that is contained in the definition for `invocation_type'
2400 // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
2402 // `invocation_type' is used to check whether we're allowed to access the requested
2403 // member wrt its protection level.
2405 // When called from MemberAccess, `qualifier_type' is the type which is used to access
2406 // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
2407 // is B and qualifier_type is A). This is used to do the CS1540 check.
2409 // When resolving a SimpleName, `qualifier_type' is null.
2411 // The `qualifier_type' is used for the CS1540 check; it's normally either null or
2412 // the same than `queried_type' - except when we're being called from BaseAccess;
2413 // in this case, `invocation_type' is the current type and `queried_type' the base
2414 // type, so this'd normally trigger a CS1540.
2416 // The binding flags are `bf' and the kind of members being looked up are `mt'
2418 // The return value always includes private members which code in `invocation_type'
2419 // is allowed to access (using the specified `qualifier_type' if given); only use
2420 // BindingFlags.NonPublic to bypass the permission check.
2422 // Returns an array of a single element for everything but Methods/Constructors
2423 // that might return multiple matches.
2425 public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_type,
2426 Type queried_type, MemberTypes mt,
2427 BindingFlags original_bf, string name)
2429 Timer.StartTimer (TimerType.MemberLookup);
2431 MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_type,
2432 queried_type, mt, original_bf, name);
2434 Timer.StopTimer (TimerType.MemberLookup);
2439 static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_type,
2440 Type queried_type, MemberTypes mt,
2441 BindingFlags original_bf, string name)
2443 BindingFlags bf = original_bf;
2445 ArrayList method_list = null;
2446 Type current_type = queried_type;
2447 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2448 bool skip_iface_check = true, used_cache = false;
2449 bool always_ok_flag = false;
2451 closure_name = name;
2452 closure_invocation_type = invocation_type;
2453 closure_invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2454 closure_qualifier_type = qualifier_type;
2457 // If we are a nested class, we always have access to our container
2460 if (invocation_type != null){
2461 string invocation_name = invocation_type.FullName;
2462 if (invocation_name.IndexOf ('+') != -1){
2463 string container = queried_type.FullName + "+";
2464 int container_length = container.Length;
2466 if (invocation_name.Length > container_length){
2467 string shared = invocation_name.Substring (0, container_length);
2469 if (shared == container)
2470 always_ok_flag = true;
2479 // `NonPublic' is lame, because it includes both protected and
2480 // private methods, so we need to control this behavior by
2481 // explicitly tracking if a private method is ok or not.
2483 // The possible cases are:
2484 // public, private and protected (internal does not come into the
2487 if ((invocation_type != null) &&
2488 ((invocation_type == current_type) ||
2489 IsNestedChildOf (invocation_type, current_type)) ||
2491 bf = original_bf | BindingFlags.NonPublic;
2495 closure_private_ok = (original_bf & BindingFlags.NonPublic) != 0;
2496 closure_queried_type = current_type;
2498 Timer.StopTimer (TimerType.MemberLookup);
2500 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2502 Timer.StartTimer (TimerType.MemberLookup);
2505 // When queried for an interface type, the cache will automatically check all
2506 // inherited members, so we don't need to do this here. However, this only
2507 // works if we already used the cache in the first iteration of this loop.
2509 // If we used the cache in any further iteration, we can still terminate the
2510 // loop since the cache always looks in all parent classes.
2516 skip_iface_check = false;
2518 if (current_type == TypeManager.object_type)
2521 current_type = current_type.BaseType;
2524 // This happens with interfaces, they have a null
2525 // basetype. Look members up in the Object class.
2527 if (current_type == null)
2528 current_type = TypeManager.object_type;
2531 if (list.Count == 0)
2535 // Events and types are returned by both `static' and `instance'
2536 // searches, which means that our above FindMembers will
2537 // return two copies of the same.
2539 if (list.Count == 1 && !(list [0] is MethodBase)){
2540 return (MemberInfo []) list;
2544 // Multiple properties: we query those just to find out the indexer
2547 if (list [0] is PropertyInfo)
2548 return (MemberInfo []) list;
2551 // We found an event: the cache lookup returns both the event and
2552 // its private field.
2554 if (list [0] is EventInfo) {
2555 if ((list.Count == 2) && (list [1] is FieldInfo))
2556 return new MemberInfo [] { list [0] };
2563 // We found methods, turn the search into "method scan"
2567 method_list = CopyNewMethods (method_list, list);
2568 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2569 } while (searching);
2571 if (method_list != null && method_list.Count > 0) {
2572 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2575 // This happens if we already used the cache in the first iteration, in this case
2576 // the cache already looked in all interfaces.
2578 if (skip_iface_check)
2582 // Interfaces do not list members they inherit, so we have to
2585 if (!queried_type.IsInterface)
2588 if (queried_type.IsArray)
2589 queried_type = TypeManager.array_type;
2591 TypeExpr [] ifaces = GetInterfaces (queried_type);
2595 foreach (TypeExpr itype in ifaces){
2598 x = MemberLookup (null, null, itype.Type, mt, bf, name);
2607 // This is used to extract properties and event declarations from a type
2609 static MemberInfo [] SpecialContainerLookup (Type t, bool is_static)
2611 BindingFlags bf = BindingFlags.DeclaredOnly | (is_static ? BindingFlags.Static : BindingFlags.Instance);
2613 bf |= BindingFlags.Public | BindingFlags.NonPublic;
2615 if (t is TypeBuilder) {
2616 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
2618 return (MemberInfo []) decl.FindMembers (
2619 MemberTypes.Property | MemberTypes.Event,
2620 bf, FilterNone_delegate, null);
2622 return t.FindMembers (MemberTypes.Property | MemberTypes.Event,
2623 bf, FilterNone_delegate, null);
2628 public static bool IsSpecialMethod (MethodBase mb)
2630 Type t = mb.DeclaringType;
2632 MemberInfo [] matches = TypeManager.SpecialContainerLookup (t, mb.IsStatic);
2633 if (matches == null)
2636 foreach (MemberInfo mi in matches){
2637 if (mi is PropertyBuilder){
2638 Pair p = (Pair) properties [mi];
2640 if (p.First == mb || p.Second == mb)
2642 } else if (mi is PropertyInfo){
2643 MethodInfo [] methods = ((PropertyInfo) mi).GetAccessors (true);
2645 foreach (MethodInfo m in methods){
2649 } else if (mi is MyEventBuilder){
2650 Pair p = (Pair) events [mi];
2652 if (p.First == mb || p.Second == mb)
2654 } else if (mi is EventInfo){
2655 EventInfo ei = ((EventInfo) mi);
2657 if (ei.GetAddMethod (true) == mb)
2660 if (ei.GetRemoveMethod (true) == mb)
2663 if (ei.GetRaiseMethod (true) == mb)
2669 // Now check if it is an operator method
2673 if (s.StartsWith ("op_")){
2674 foreach (string name in Unary.oper_names){
2679 foreach (string name in Binary.oper_names){
2693 /// There is exactly one instance of this class per type.
2695 public sealed class TypeHandle : IMemberContainer {
2696 public readonly TypeHandle BaseType;
2698 readonly int id = ++next_id;
2699 static int next_id = 0;
2702 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2703 /// a TypeHandle yet, a new instance of it is created. This static method
2704 /// ensures that we'll only have one TypeHandle instance per type.
2706 public static TypeHandle GetTypeHandle (Type t)
2708 TypeHandle handle = (TypeHandle) type_hash [t];
2712 handle = new TypeHandle (t);
2713 type_hash.Add (t, handle);
2718 /// Returns the TypeHandle for TypeManager.object_type.
2720 public static IMemberContainer ObjectType {
2722 if (object_type != null)
2725 object_type = GetTypeHandle (TypeManager.object_type);
2732 /// Returns the TypeHandle for TypeManager.array_type.
2734 public static IMemberContainer ArrayType {
2736 if (array_type != null)
2739 array_type = GetTypeHandle (TypeManager.array_type);
2745 private static PtrHashtable type_hash = new PtrHashtable ();
2747 private static TypeHandle object_type = null;
2748 private static TypeHandle array_type = null;
2751 private bool is_interface;
2752 private MemberCache member_cache;
2754 private TypeHandle (Type type)
2757 if (type.BaseType != null)
2758 BaseType = GetTypeHandle (type.BaseType);
2759 this.is_interface = type.IsInterface;
2760 this.member_cache = new MemberCache (this);
2763 // IMemberContainer methods
2765 public string Name {
2767 return type.FullName;
2777 public IMemberContainer Parent {
2783 public bool IsInterface {
2785 return is_interface;
2789 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
2791 MemberInfo [] members;
2792 if (mt == MemberTypes.Event)
2793 members = type.GetEvents (bf | BindingFlags.DeclaredOnly);
2795 members = type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
2797 Array.Reverse (members);
2799 return new MemberList (members);
2802 // IMemberFinder methods
2804 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
2805 MemberFilter filter, object criteria)
2807 return member_cache.FindMembers (mt, bf, name, filter, criteria);
2810 public MemberCache MemberCache {
2812 return member_cache;
2816 public override string ToString ()
2818 if (BaseType != null)
2819 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
2821 return "TypeHandle (" + id + "," + Name + ")";