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", BindingFlags.Instance|BindingFlags.NonPublic);
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 is_private, bool report_errors)
822 BindingFlags flags = instance_and_static | BindingFlags.Public;
828 flags |= BindingFlags.NonPublic;
830 list = FindMembers (t, MemberTypes.Method, flags, signature_filter, sig);
831 if (list.Count == 0) {
833 Report.Error (-19, "Can not find the core function `" + name + "'");
837 MethodInfo mi = list [0] as MethodInfo;
840 Report.Error (-19, "Can not find the core function `" + name + "'");
847 static MethodInfo GetMethod (Type t, string name, Type [] args, bool report_errors)
849 return GetMethod (t, name, args, false, report_errors);
852 static MethodInfo GetMethod (Type t, string name, Type [] args)
854 return GetMethod (t, name, args, true);
859 /// Returns the ConstructorInfo for "args"
861 static ConstructorInfo GetConstructor (Type t, Type [] args)
869 list = FindMembers (t, MemberTypes.Constructor,
870 instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly,
871 signature_filter, sig);
872 if (list.Count == 0){
873 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
877 ConstructorInfo ci = list [0] as ConstructorInfo;
879 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
886 public static void InitEnumUnderlyingTypes ()
889 int32_type = CoreLookupType ("System.Int32");
890 int64_type = CoreLookupType ("System.Int64");
891 uint32_type = CoreLookupType ("System.UInt32");
892 uint64_type = CoreLookupType ("System.UInt64");
893 byte_type = CoreLookupType ("System.Byte");
894 sbyte_type = CoreLookupType ("System.SByte");
895 short_type = CoreLookupType ("System.Int16");
896 ushort_type = CoreLookupType ("System.UInt16");
900 /// The types have to be initialized after the initial
901 /// population of the type has happened (for example, to
902 /// bootstrap the corlib.dll
904 public static void InitCoreTypes ()
906 object_type = CoreLookupType ("System.Object");
907 value_type = CoreLookupType ("System.ValueType");
909 InitEnumUnderlyingTypes ();
911 char_type = CoreLookupType ("System.Char");
912 string_type = CoreLookupType ("System.String");
913 float_type = CoreLookupType ("System.Single");
914 double_type = CoreLookupType ("System.Double");
915 char_ptr_type = CoreLookupType ("System.Char*");
916 decimal_type = CoreLookupType ("System.Decimal");
917 bool_type = CoreLookupType ("System.Boolean");
918 enum_type = CoreLookupType ("System.Enum");
920 multicast_delegate_type = CoreLookupType ("System.MulticastDelegate");
921 delegate_type = CoreLookupType ("System.Delegate");
923 array_type = CoreLookupType ("System.Array");
924 void_type = CoreLookupType ("System.Void");
925 type_type = CoreLookupType ("System.Type");
927 runtime_field_handle_type = CoreLookupType ("System.RuntimeFieldHandle");
928 runtime_helpers_type = CoreLookupType ("System.Runtime.CompilerServices.RuntimeHelpers");
929 default_member_type = CoreLookupType ("System.Reflection.DefaultMemberAttribute");
930 runtime_handle_type = CoreLookupType ("System.RuntimeTypeHandle");
931 asynccallback_type = CoreLookupType ("System.AsyncCallback");
932 iasyncresult_type = CoreLookupType ("System.IAsyncResult");
933 ienumerator_type = CoreLookupType ("System.Collections.IEnumerator");
934 ienumerable_type = CoreLookupType ("System.Collections.IEnumerable");
935 idisposable_type = CoreLookupType ("System.IDisposable");
936 icloneable_type = CoreLookupType ("System.ICloneable");
937 monitor_type = CoreLookupType ("System.Threading.Monitor");
938 intptr_type = CoreLookupType ("System.IntPtr");
940 attribute_type = CoreLookupType ("System.Attribute");
941 attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
942 dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
943 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
944 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
945 param_array_type = CoreLookupType ("System.ParamArrayAttribute");
946 in_attribute_type = CoreLookupType ("System.Runtime.InteropServices.InAttribute");
949 // Sigh. Remove this before the release. Wonder what versions of Mono
950 // people are running.
952 guid_attr_type = LookupType ("System.Runtime.InteropServices.GuidAttribute");
954 unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
956 void_ptr_type = CoreLookupType ("System.Void*");
958 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
960 exception_type = CoreLookupType ("System.Exception");
961 invalid_operation_exception_type = CoreLookupType ("System.InvalidOperationException");
966 obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
967 conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
970 // When compiling corlib, store the "real" types here.
972 if (!RootContext.StdLib) {
973 system_int32_type = typeof (System.Int32);
974 system_array_type = typeof (System.Array);
975 system_type_type = typeof (System.Type);
976 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
978 Type [] void_arg = { };
979 system_int_array_get_length = GetMethod (
980 system_array_type, "get_Length", void_arg);
981 system_int_array_get_rank = GetMethod (
982 system_array_type, "get_Rank", void_arg);
983 system_object_array_clone = GetMethod (
984 system_array_type, "Clone", void_arg);
986 Type [] system_int_arg = { system_int32_type };
987 system_int_array_get_length_int = GetMethod (
988 system_array_type, "GetLength", system_int_arg);
989 system_int_array_get_upper_bound_int = GetMethod (
990 system_array_type, "GetUpperBound", system_int_arg);
991 system_int_array_get_lower_bound_int = GetMethod (
992 system_array_type, "GetLowerBound", system_int_arg);
994 Type [] system_array_int_arg = { system_array_type, system_int32_type };
995 system_void_array_copyto_array_int = GetMethod (
996 system_array_type, "CopyTo", system_array_int_arg);
998 Type [] system_3_type_arg = {
999 system_type_type, system_type_type, system_type_type };
1000 Type [] system_4_type_arg = {
1001 system_type_type, system_type_type, system_type_type, system_type_type };
1003 MethodInfo set_corlib_type_builders = GetMethod (
1004 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1005 system_4_type_arg, true, false);
1007 if (set_corlib_type_builders != null) {
1008 object[] args = new object [4];
1009 args [0] = object_type;
1010 args [1] = value_type;
1011 args [2] = enum_type;
1012 args [3] = void_type;
1014 set_corlib_type_builders.Invoke (CodeGen.AssemblyBuilder, args);
1016 // Compatibility for an older version of the class libs.
1017 set_corlib_type_builders = GetMethod (
1018 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1019 system_3_type_arg, true, true);
1021 if (set_corlib_type_builders == null) {
1022 Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
1026 object[] args = new object [3];
1027 args [0] = object_type;
1028 args [1] = value_type;
1029 args [2] = enum_type;
1031 set_corlib_type_builders.Invoke (CodeGen.AssemblyBuilder, args);
1035 system_object_expr.Type = object_type;
1036 system_string_expr.Type = string_type;
1037 system_boolean_expr.Type = bool_type;
1038 system_decimal_expr.Type = decimal_type;
1039 system_single_expr.Type = float_type;
1040 system_double_expr.Type = double_type;
1041 system_sbyte_expr.Type = sbyte_type;
1042 system_byte_expr.Type = byte_type;
1043 system_int16_expr.Type = short_type;
1044 system_uint16_expr.Type = ushort_type;
1045 system_int32_expr.Type = int32_type;
1046 system_uint32_expr.Type = uint32_type;
1047 system_int64_expr.Type = int64_type;
1048 system_uint64_expr.Type = uint64_type;
1049 system_char_expr.Type = char_type;
1050 system_void_expr.Type = void_type;
1051 system_asynccallback_expr.Type = asynccallback_type;
1052 system_iasyncresult_expr.Type = iasyncresult_type;
1053 system_valuetype_expr.Type = value_type;
1057 // The helper methods that are used by the compiler
1059 public static void InitCodeHelpers ()
1062 // Now load the default methods that we use.
1064 Type [] string_string = { string_type, string_type };
1065 string_concat_string_string = GetMethod (
1066 string_type, "Concat", string_string);
1067 Type [] string_string_string = { string_type, string_type, string_type };
1068 string_concat_string_string_string = GetMethod (
1069 string_type, "Concat", string_string_string);
1070 Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
1071 string_concat_string_string_string_string = GetMethod (
1072 string_type, "Concat", string_string_string_string);
1074 Type [] object_object = { object_type, object_type };
1075 string_concat_object_object = GetMethod (
1076 string_type, "Concat", object_object);
1078 Type [] string_ = { string_type };
1079 string_isinterneted_string = GetMethod (
1080 string_type, "IsInterned", string_);
1082 Type [] runtime_type_handle = { runtime_handle_type };
1083 system_type_get_type_from_handle = GetMethod (
1084 type_type, "GetTypeFromHandle", runtime_type_handle);
1086 Type [] delegate_delegate = { delegate_type, delegate_type };
1087 delegate_combine_delegate_delegate = GetMethod (
1088 delegate_type, "Combine", delegate_delegate);
1090 delegate_remove_delegate_delegate = GetMethod (
1091 delegate_type, "Remove", delegate_delegate);
1096 Type [] void_arg = { };
1097 object_getcurrent_void = GetMethod (
1098 ienumerator_type, "get_Current", void_arg);
1099 bool_movenext_void = GetMethod (
1100 ienumerator_type, "MoveNext", void_arg);
1101 void_reset_void = GetMethod (
1102 ienumerator_type, "Reset", void_arg);
1103 void_dispose_void = GetMethod (
1104 idisposable_type, "Dispose", void_arg);
1105 int_get_offset_to_string_data = GetMethod (
1106 runtime_helpers_type, "get_OffsetToStringData", void_arg);
1107 int_array_get_length = GetMethod (
1108 array_type, "get_Length", void_arg);
1109 int_array_get_rank = GetMethod (
1110 array_type, "get_Rank", void_arg);
1111 ienumerable_getenumerator_void = GetMethod (
1112 ienumerable_type, "GetEnumerator", void_arg);
1117 Type [] int_arg = { int32_type };
1118 int_array_get_length_int = GetMethod (
1119 array_type, "GetLength", int_arg);
1120 int_array_get_upper_bound_int = GetMethod (
1121 array_type, "GetUpperBound", int_arg);
1122 int_array_get_lower_bound_int = GetMethod (
1123 array_type, "GetLowerBound", int_arg);
1126 // System.Array methods
1128 object_array_clone = GetMethod (
1129 array_type, "Clone", void_arg);
1130 Type [] array_int_arg = { array_type, int32_type };
1131 void_array_copyto_array_int = GetMethod (
1132 array_type, "CopyTo", array_int_arg);
1137 Type [] object_arg = { object_type };
1138 void_monitor_enter_object = GetMethod (
1139 monitor_type, "Enter", object_arg);
1140 void_monitor_exit_object = GetMethod (
1141 monitor_type, "Exit", object_arg);
1143 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1145 void_initializearray_array_fieldhandle = GetMethod (
1146 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1151 int_getlength_int = GetMethod (
1152 array_type, "GetLength", int_arg);
1155 // Decimal constructors
1157 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1158 void_decimal_ctor_five_args = GetConstructor (
1159 decimal_type, dec_arg);
1164 cons_param_array_attribute = GetConstructor (
1165 param_array_type, void_arg);
1167 unverifiable_code_ctor = GetConstructor (
1168 unverifiable_code_type, void_arg);
1171 // InvalidOperationException
1173 invalid_operation_ctor = GetConstructor (
1174 invalid_operation_exception_type, void_arg);
1178 object_ctor = GetConstructor (object_type, void_arg);
1182 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1184 static Hashtable type_hash = new Hashtable ();
1187 /// This is the "old", non-cache based FindMembers() function. We cannot use
1188 /// the cache here because there is no member name argument.
1190 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1191 MemberFilter filter, object criteria)
1193 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1196 // `builder_to_declspace' contains all dynamic types.
1200 Timer.StartTimer (TimerType.FindMembers);
1201 list = decl.FindMembers (mt, bf, filter, criteria);
1202 Timer.StopTimer (TimerType.FindMembers);
1207 // We have to take care of arrays specially, because GetType on
1208 // a TypeBuilder array will return a Type, not a TypeBuilder,
1209 // and we can not call FindMembers on this type.
1211 if (t.IsSubclassOf (TypeManager.array_type))
1212 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1215 // Since FindMembers will not lookup both static and instance
1216 // members, we emulate this behaviour here.
1218 if ((bf & instance_and_static) == instance_and_static){
1219 MemberInfo [] i_members = t.FindMembers (
1220 mt, bf & ~BindingFlags.Static, filter, criteria);
1222 int i_len = i_members.Length;
1224 MemberInfo one = i_members [0];
1227 // If any of these are present, we are done!
1229 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1230 return new MemberList (i_members);
1233 MemberInfo [] s_members = t.FindMembers (
1234 mt, bf & ~BindingFlags.Instance, filter, criteria);
1236 int s_len = s_members.Length;
1237 if (i_len > 0 || s_len > 0)
1238 return new MemberList (i_members, s_members);
1241 return new MemberList (i_members);
1243 return new MemberList (s_members);
1247 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1252 /// This method is only called from within MemberLookup. It tries to use the member
1253 /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
1254 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1255 /// our return value will already contain all inherited members and the caller don't need
1256 /// to check base classes and interfaces anymore.
1258 private static MemberList MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1259 string name, out bool used_cache)
1261 bool not_loaded_corlib = (t.Assembly == CodeGen.AssemblyBuilder);
1264 // We have to take care of arrays specially, because GetType on
1265 // a TypeBuilder array will return a Type, not a TypeBuilder,
1266 // and we can not call FindMembers on this type.
1268 if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
1270 return TypeHandle.ArrayType.MemberCache.FindMembers (
1271 mt, bf, name, FilterWithClosure_delegate, null);
1275 // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
1276 // and we can ask the DeclSpace for the MemberCache.
1278 if (t is TypeBuilder) {
1279 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1280 MemberCache cache = decl.MemberCache;
1283 // If this DeclSpace has a MemberCache, use it.
1286 if (cache != null) {
1288 return cache.FindMembers (
1289 mt, bf, name, FilterWithClosure_delegate, null);
1292 // If there is no MemberCache, we need to use the "normal" FindMembers.
1295 Timer.StartTimer (TimerType.FindMembers);
1296 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
1297 FilterWithClosure_delegate, name);
1298 Timer.StopTimer (TimerType.FindMembers);
1305 // This call will always succeed. There is exactly one TypeHandle instance per
1306 // type, TypeHandle.GetTypeHandle() will either return it or create a new one
1307 // if it didn't already exist.
1309 TypeHandle handle = TypeHandle.GetTypeHandle (t);
1312 return handle.MemberCache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1315 public static bool IsBuiltinType (Type t)
1317 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1318 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1319 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1320 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
1327 // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
1328 // the pieces in the code where we use IsBuiltinType and special case decimal_type.
1330 public static bool IsCLRType (Type t)
1332 if (t == object_type || t == int32_type || t == uint32_type ||
1333 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1334 t == char_type || t == short_type || t == bool_type ||
1335 t == sbyte_type || t == byte_type || t == ushort_type)
1341 public static bool IsDelegateType (Type t)
1343 if (t.IsSubclassOf (TypeManager.delegate_type))
1349 public static bool IsEnumType (Type t)
1351 if (t == TypeManager.enum_type || t.IsSubclassOf (TypeManager.enum_type))
1356 public static bool IsBuiltinOrEnum (Type t)
1358 if (IsBuiltinType (t))
1368 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1370 public static bool IsUnmanagedType (Type t)
1372 if (IsBuiltinType (t) && t != TypeManager.string_type)
1381 if (IsValueType (t)){
1382 if (t is TypeBuilder){
1383 TypeContainer tc = LookupTypeContainer (t);
1385 foreach (Field f in tc.Fields){
1386 if (f.FieldBuilder.IsStatic)
1388 if (!IsUnmanagedType (f.FieldBuilder.FieldType))
1392 FieldInfo [] fields = t.GetFields ();
1394 foreach (FieldInfo f in fields){
1397 if (!IsUnmanagedType (f.FieldType))
1407 public static bool IsValueType (Type t)
1409 if (t.IsSubclassOf (TypeManager.value_type) && (t != TypeManager.enum_type))
1415 public static bool IsInterfaceType (Type t)
1417 Interface iface = builder_to_declspace [t] as Interface;
1426 // Checks whether `type' is a subclass or nested child of `parent'.
1428 public static bool IsSubclassOrNestedChildOf (Type type, Type parent)
1431 if ((type == parent) || type.IsSubclassOf (parent))
1434 // Handle nested types.
1435 type = type.DeclaringType;
1436 } while (type != null);
1442 // Checks whether `type' is a nested child of `parent'.
1444 public static bool IsNestedChildOf (Type type, Type parent)
1449 type = type.DeclaringType;
1450 while (type != null) {
1454 type = type.DeclaringType;
1461 // Do the right thing when returning the element type of an
1462 // array type based on whether we are compiling corlib or not
1464 public static Type GetElementType (Type t)
1466 if (RootContext.StdLib)
1467 return t.GetElementType ();
1469 return TypeToCoreType (t.GetElementType ());
1473 /// Returns the User Defined Types
1475 public static ArrayList UserTypes {
1481 public static Hashtable TypeContainers {
1483 return typecontainers;
1487 static Hashtable attr_to_allowmult;
1489 public static void RegisterAttributeAllowMultiple (Type attr_type, bool allow)
1491 if (attr_to_allowmult == null)
1492 attr_to_allowmult = new PtrHashtable ();
1494 if (attr_to_allowmult.Contains (attr_type))
1497 attr_to_allowmult.Add (attr_type, allow);
1501 public static bool AreMultipleAllowed (Type attr_type)
1503 if (!(attr_type is TypeBuilder)) {
1504 System.Attribute [] attrs = System.Attribute.GetCustomAttributes (attr_type);
1506 foreach (System.Attribute tmp in attrs)
1507 if (tmp is AttributeUsageAttribute) {
1508 return ((AttributeUsageAttribute) tmp).AllowMultiple;
1514 if (attr_to_allowmult == null)
1517 return (bool) attr_to_allowmult [attr_type];
1520 static Hashtable builder_to_constant;
1522 public static void RegisterConstant (FieldBuilder fb, Const c)
1524 if (builder_to_constant == null)
1525 builder_to_constant = new PtrHashtable ();
1527 if (builder_to_constant.Contains (fb))
1530 builder_to_constant.Add (fb, c);
1533 public static Const LookupConstant (FieldBuilder fb)
1535 if (builder_to_constant == null)
1538 return (Const) builder_to_constant [fb];
1542 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1546 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1547 /// for anything which is dynamic, and we need this in a number of places,
1548 /// we register this information here, and use it afterwards.
1550 static public bool RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1555 method_arguments.Add (mb, args);
1556 method_internal_params.Add (mb, ip);
1561 static public InternalParameters LookupParametersByBuilder (MethodBase mb)
1563 if (! (mb is ConstructorBuilder || mb is MethodBuilder))
1566 if (method_internal_params.Contains (mb))
1567 return (InternalParameters) method_internal_params [mb];
1569 throw new Exception ("Argument for Method not registered" + mb);
1573 /// Returns the argument types for a method based on its methodbase
1575 /// For dynamic methods, we use the compiler provided types, for
1576 /// methods from existing assemblies we load them from GetParameters,
1577 /// and insert them into the cache
1579 static public Type [] GetArgumentTypes (MethodBase mb)
1581 if (method_arguments.Contains (mb))
1582 return (Type []) method_arguments [mb];
1584 ParameterInfo [] pi = mb.GetParameters ();
1586 Type [] types = new Type [c];
1588 for (int i = 0; i < c; i++)
1589 types [i] = pi [i].ParameterType;
1591 method_arguments.Add (mb, types);
1597 /// Returns the argument types for an indexer based on its PropertyInfo
1599 /// For dynamic indexers, we use the compiler provided types, for
1600 /// indexers from existing assemblies we load them from GetParameters,
1601 /// and insert them into the cache
1603 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1605 if (indexer_arguments.Contains (indexer))
1606 return (Type []) indexer_arguments [indexer];
1607 else if (indexer is PropertyBuilder)
1608 // If we're a PropertyBuilder and not in the
1609 // `indexer_arguments' hash, then we're a property and
1613 ParameterInfo [] pi = indexer.GetIndexParameters ();
1614 // Property, not an indexer.
1618 Type [] types = new Type [c];
1620 for (int i = 0; i < c; i++)
1621 types [i] = pi [i].ParameterType;
1623 indexer_arguments.Add (indexer, types);
1629 // This is a workaround the fact that GetValue is not
1630 // supported for dynamic types
1632 static Hashtable fields = new Hashtable ();
1633 static public bool RegisterFieldValue (FieldBuilder fb, object value)
1635 if (fields.Contains (fb))
1638 fields.Add (fb, value);
1643 static public object GetValue (FieldBuilder fb)
1648 static Hashtable fieldbuilders_to_fields = new Hashtable ();
1649 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1651 if (fieldbuilders_to_fields.Contains (fb))
1654 fieldbuilders_to_fields.Add (fb, f);
1659 // The return value can be null; This will be the case for
1660 // auxiliary FieldBuilders created by the compiler that have no
1661 // real field being declared on the source code
1663 static public FieldBase GetField (FieldInfo fb)
1665 return (FieldBase) fieldbuilders_to_fields [fb];
1668 static Hashtable events;
1670 static public bool RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1673 events = new Hashtable ();
1675 if (events.Contains (eb))
1678 events.Add (eb, new Pair (add, remove));
1683 static public MethodInfo GetAddMethod (EventInfo ei)
1685 if (ei is MyEventBuilder) {
1686 Pair pair = (Pair) events [ei];
1688 return (MethodInfo) pair.First;
1690 return ei.GetAddMethod ();
1693 static public MethodInfo GetRemoveMethod (EventInfo ei)
1695 if (ei is MyEventBuilder) {
1696 Pair pair = (Pair) events [ei];
1698 return (MethodInfo) pair.Second;
1700 return ei.GetRemoveMethod ();
1703 static Hashtable priv_fields_events;
1705 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1707 if (priv_fields_events == null)
1708 priv_fields_events = new Hashtable ();
1710 if (priv_fields_events.Contains (einfo))
1713 priv_fields_events.Add (einfo, builder);
1718 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1720 if (priv_fields_events == null)
1723 return (MemberInfo) priv_fields_events [ei];
1726 static Hashtable properties;
1728 static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase set)
1730 if (properties == null)
1731 properties = new Hashtable ();
1733 if (properties.Contains (pb))
1736 properties.Add (pb, new Pair (get, set));
1741 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get,
1742 MethodBase set, Type[] args)
1744 if (!RegisterProperty (pb, get,set))
1747 indexer_arguments.Add (pb, args);
1753 /// Given an array of interface types, expand and eliminate repeated ocurrences
1754 /// of an interface.
1758 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
1761 public static TypeExpr[] ExpandInterfaces (TypeExpr [] base_interfaces)
1763 ArrayList new_ifaces = new ArrayList ();
1765 foreach (TypeExpr iface in base_interfaces){
1766 if (!new_ifaces.Contains (iface))
1767 new_ifaces.Add (iface);
1769 TypeExpr [] implementing = iface.GetInterfaces ();
1771 foreach (TypeExpr imp in implementing){
1772 if (!new_ifaces.Contains (imp))
1773 new_ifaces.Add (imp);
1776 TypeExpr [] ret = new TypeExpr [new_ifaces.Count];
1777 new_ifaces.CopyTo (ret, 0);
1782 /// This function returns the interfaces in the type `t'. Works with
1783 /// both types and TypeBuilders.
1785 public static TypeExpr [] GetInterfaces (Type t)
1788 // The reason for catching the Array case is that Reflection.Emit
1789 // will not return a TypeBuilder for Array types of TypeBuilder types,
1790 // but will still throw an exception if we try to call GetInterfaces
1793 // Since the array interfaces are always constant, we return those for
1798 t = TypeManager.array_type;
1800 if (t is TypeBuilder){
1801 TypeExpr [] parent_ifaces;
1803 if (t.BaseType == null)
1804 parent_ifaces = NoTypeExprs;
1806 parent_ifaces = GetInterfaces (t.BaseType);
1807 TypeExpr [] type_ifaces = (TypeExpr []) builder_to_ifaces [t];
1808 if (type_ifaces == null)
1809 type_ifaces = NoTypeExprs;
1811 int parent_count = parent_ifaces.Length;
1812 TypeExpr [] result = new TypeExpr [parent_count + type_ifaces.Length];
1813 parent_ifaces.CopyTo (result, 0);
1814 type_ifaces.CopyTo (result, parent_count);
1818 Type [] ifaces = t.GetInterfaces ();
1820 TypeExpr [] result = new TypeExpr [ifaces.Length];
1821 for (int i = 0; i < ifaces.Length; i++)
1822 result [i] = new TypeExpression (ifaces [i], Location.Null);
1828 /// The following is used to check if a given type implements an interface.
1829 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
1831 public static bool ImplementsInterface (Type t, Type iface)
1833 TypeExpr [] interfaces;
1836 // FIXME OPTIMIZATION:
1837 // as soon as we hit a non-TypeBuiler in the interface
1838 // chain, we could return, as the `Type.GetInterfaces'
1839 // will return all the interfaces implement by the type
1843 interfaces = GetInterfaces (t);
1845 if (interfaces != null){
1846 foreach (TypeExpr i in interfaces){
1847 if (i.Type == iface)
1853 } while (t != null);
1858 static NumberFormatInfo nf_provider = CultureInfo.CurrentCulture.NumberFormat;
1860 // This is a custom version of Convert.ChangeType() which works
1861 // with the TypeBuilder defined types when compiling corlib.
1862 public static object ChangeType (object value, Type conversionType, out bool error)
1864 IConvertible convert_value = value as IConvertible;
1866 if (convert_value == null){
1872 // We must use Type.Equals() here since `conversionType' is
1873 // the TypeBuilder created version of a system type and not
1874 // the system type itself. You cannot use Type.GetTypeCode()
1875 // on such a type - it'd always return TypeCode.Object.
1879 if (conversionType.Equals (typeof (Boolean)))
1880 return (object)(convert_value.ToBoolean (nf_provider));
1881 else if (conversionType.Equals (typeof (Byte)))
1882 return (object)(convert_value.ToByte (nf_provider));
1883 else if (conversionType.Equals (typeof (Char)))
1884 return (object)(convert_value.ToChar (nf_provider));
1885 else if (conversionType.Equals (typeof (DateTime)))
1886 return (object)(convert_value.ToDateTime (nf_provider));
1887 else if (conversionType.Equals (typeof (Decimal)))
1888 return (object)(convert_value.ToDecimal (nf_provider));
1889 else if (conversionType.Equals (typeof (Double)))
1890 return (object)(convert_value.ToDouble (nf_provider));
1891 else if (conversionType.Equals (typeof (Int16)))
1892 return (object)(convert_value.ToInt16 (nf_provider));
1893 else if (conversionType.Equals (typeof (Int32)))
1894 return (object)(convert_value.ToInt32 (nf_provider));
1895 else if (conversionType.Equals (typeof (Int64)))
1896 return (object)(convert_value.ToInt64 (nf_provider));
1897 else if (conversionType.Equals (typeof (SByte)))
1898 return (object)(convert_value.ToSByte (nf_provider));
1899 else if (conversionType.Equals (typeof (Single)))
1900 return (object)(convert_value.ToSingle (nf_provider));
1901 else if (conversionType.Equals (typeof (String)))
1902 return (object)(convert_value.ToString (nf_provider));
1903 else if (conversionType.Equals (typeof (UInt16)))
1904 return (object)(convert_value.ToUInt16 (nf_provider));
1905 else if (conversionType.Equals (typeof (UInt32)))
1906 return (object)(convert_value.ToUInt32 (nf_provider));
1907 else if (conversionType.Equals (typeof (UInt64)))
1908 return (object)(convert_value.ToUInt64 (nf_provider));
1909 else if (conversionType.Equals (typeof (Object)))
1910 return (object)(value);
1920 // This is needed, because enumerations from assemblies
1921 // do not report their underlyingtype, but they report
1924 public static Type EnumToUnderlying (Type t)
1926 if (t == TypeManager.enum_type)
1929 t = t.UnderlyingSystemType;
1930 if (!TypeManager.IsEnumType (t))
1933 if (t is TypeBuilder) {
1934 // slow path needed to compile corlib
1935 if (t == TypeManager.bool_type ||
1936 t == TypeManager.byte_type ||
1937 t == TypeManager.sbyte_type ||
1938 t == TypeManager.char_type ||
1939 t == TypeManager.short_type ||
1940 t == TypeManager.ushort_type ||
1941 t == TypeManager.int32_type ||
1942 t == TypeManager.uint32_type ||
1943 t == TypeManager.int64_type ||
1944 t == TypeManager.uint64_type)
1946 throw new Exception ("Unhandled typecode in enum " + " from " + t.AssemblyQualifiedName);
1948 TypeCode tc = Type.GetTypeCode (t);
1951 case TypeCode.Boolean:
1952 return TypeManager.bool_type;
1954 return TypeManager.byte_type;
1955 case TypeCode.SByte:
1956 return TypeManager.sbyte_type;
1958 return TypeManager.char_type;
1959 case TypeCode.Int16:
1960 return TypeManager.short_type;
1961 case TypeCode.UInt16:
1962 return TypeManager.ushort_type;
1963 case TypeCode.Int32:
1964 return TypeManager.int32_type;
1965 case TypeCode.UInt32:
1966 return TypeManager.uint32_type;
1967 case TypeCode.Int64:
1968 return TypeManager.int64_type;
1969 case TypeCode.UInt64:
1970 return TypeManager.uint64_type;
1972 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
1976 // When compiling corlib and called with one of the core types, return
1977 // the corresponding typebuilder for that type.
1979 public static Type TypeToCoreType (Type t)
1981 if (RootContext.StdLib || (t is TypeBuilder))
1984 TypeCode tc = Type.GetTypeCode (t);
1987 case TypeCode.Boolean:
1988 return TypeManager.bool_type;
1990 return TypeManager.byte_type;
1991 case TypeCode.SByte:
1992 return TypeManager.sbyte_type;
1994 return TypeManager.char_type;
1995 case TypeCode.Int16:
1996 return TypeManager.short_type;
1997 case TypeCode.UInt16:
1998 return TypeManager.ushort_type;
1999 case TypeCode.Int32:
2000 return TypeManager.int32_type;
2001 case TypeCode.UInt32:
2002 return TypeManager.uint32_type;
2003 case TypeCode.Int64:
2004 return TypeManager.int64_type;
2005 case TypeCode.UInt64:
2006 return TypeManager.uint64_type;
2007 case TypeCode.Single:
2008 return TypeManager.float_type;
2009 case TypeCode.Double:
2010 return TypeManager.double_type;
2011 case TypeCode.String:
2012 return TypeManager.string_type;
2014 if (t == typeof (void))
2015 return TypeManager.void_type;
2016 if (t == typeof (object))
2017 return TypeManager.object_type;
2018 if (t == typeof (System.Type))
2019 return TypeManager.type_type;
2025 /// Utility function that can be used to probe whether a type
2026 /// is managed or not.
2028 public static bool VerifyUnManaged (Type t, Location loc)
2030 if (t.IsValueType || t.IsPointer){
2032 // FIXME: this is more complex, we actually need to
2033 // make sure that the type does not contain any
2039 if (!RootContext.StdLib && (t == TypeManager.decimal_type))
2040 // We need this explicit check here to make it work when
2041 // compiling corlib.
2046 "Cannot take the address or size of a variable of a managed type ('" +
2047 CSharpName (t) + "')");
2052 /// Returns the name of the indexer in a given type.
2055 /// The default is not always `Item'. The user can change this behaviour by
2056 /// using the DefaultMemberAttribute in the class.
2058 /// For example, the String class indexer is named `Chars' not `Item'
2060 public static string IndexerPropertyName (Type t)
2062 if (t is TypeBuilder) {
2063 if (t.IsInterface) {
2064 Interface i = LookupInterface (t);
2066 if ((i == null) || (i.IndexerName == null))
2069 return i.IndexerName;
2071 TypeContainer tc = LookupTypeContainer (t);
2073 if ((tc == null) || (tc.IndexerName == null))
2076 return tc.IndexerName;
2080 System.Attribute attr = System.Attribute.GetCustomAttribute (
2081 t, TypeManager.default_member_type);
2083 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
2084 return dma.MemberName;
2090 public static void MakePinned (LocalBuilder builder)
2093 // FIXME: Flag the "LocalBuilder" type as being
2094 // pinned. Figure out API.
2100 // Returns whether the array of memberinfos contains the given method
2102 public static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
2104 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
2106 foreach (MethodBase method in array) {
2107 if (method.Name != new_method.Name)
2110 if (method is MethodInfo && new_method is MethodInfo)
2111 if (((MethodInfo) method).ReturnType != ((MethodInfo) new_method).ReturnType)
2115 Type [] old_args = TypeManager.GetArgumentTypes (method);
2116 int old_count = old_args.Length;
2119 if (new_args.Length != old_count)
2122 for (i = 0; i < old_count; i++){
2123 if (old_args [i] != new_args [i])
2136 // We copy methods from `new_members' into `target_list' if the signature
2137 // for the method from in the new list does not exist in the target_list
2139 // The name is assumed to be the same.
2141 public static ArrayList CopyNewMethods (ArrayList target_list, MemberList new_members)
2143 if (target_list == null){
2144 target_list = new ArrayList ();
2146 foreach (MemberInfo mi in new_members){
2147 if (mi is MethodBase)
2148 target_list.Add (mi);
2153 MemberInfo [] target_array = new MemberInfo [target_list.Count];
2154 target_list.CopyTo (target_array, 0);
2156 foreach (MemberInfo mi in new_members){
2157 MethodBase new_method = (MethodBase) mi;
2159 if (!ArrayContainsMethod (target_array, new_method))
2160 target_list.Add (new_method);
2166 public enum MethodFlags {
2168 IsObsoleteError = 1 << 1,
2169 ShouldIgnore = 1 << 2
2173 // Returns the TypeManager.MethodFlags for this method.
2174 // This emits an error 619 / warning 618 if the method is obsolete.
2175 // In the former case, TypeManager.MethodFlags.IsObsoleteError is returned.
2177 static public MethodFlags GetMethodFlags (MethodBase mb, Location loc)
2179 MethodFlags flags = 0;
2181 if (mb.DeclaringType is TypeBuilder){
2182 MethodData method = (MethodData) builder_to_method [mb];
2183 if (method == null) {
2184 // FIXME: implement Obsolete attribute on Property,
2185 // Indexer and Event.
2189 return method.GetMethodFlags (loc);
2192 object [] attrs = mb.GetCustomAttributes (true);
2193 foreach (object ta in attrs){
2194 if (!(ta is System.Attribute)){
2195 Console.WriteLine ("Unknown type in GetMethodFlags: " + ta);
2198 System.Attribute a = (System.Attribute) ta;
2199 if (a.TypeId == TypeManager.obsolete_attribute_type){
2200 ObsoleteAttribute oa = (ObsoleteAttribute) a;
2202 string method_desc = TypeManager.CSharpSignature (mb);
2205 Report.Error (619, loc, "Method `" + method_desc +
2206 "' is obsolete: `" + oa.Message + "'");
2207 return MethodFlags.IsObsoleteError;
2209 Report.Warning (618, loc, "Method `" + method_desc +
2210 "' is obsolete: `" + oa.Message + "'");
2212 flags |= MethodFlags.IsObsolete;
2218 // Skip over conditional code.
2220 if (a.TypeId == TypeManager.conditional_attribute_type){
2221 ConditionalAttribute ca = (ConditionalAttribute) a;
2223 if (RootContext.AllDefines [ca.ConditionString] == null)
2224 flags |= MethodFlags.ShouldIgnore;
2231 #region MemberLookup implementation
2234 // Name of the member
2236 static string closure_name;
2239 // Whether we allow private members in the result (since FindMembers
2240 // uses NonPublic for both protected and private), we need to distinguish.
2242 static bool closure_private_ok;
2245 // Who is invoking us and which type is being queried currently.
2247 static Type closure_invocation_type;
2248 static Type closure_queried_type;
2249 static Type closure_qualifier_type;
2252 // The assembly that defines the type is that is calling us
2254 static Assembly closure_invocation_assembly;
2256 static internal bool FilterNone (MemberInfo m, object filter_criteria)
2262 // This filter filters by name + whether it is ok to include private
2263 // members in the search
2265 static internal bool FilterWithClosure (MemberInfo m, object filter_criteria)
2268 // Hack: we know that the filter criteria will always be in the `closure'
2272 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2275 if (((closure_qualifier_type == null) || (closure_qualifier_type == closure_invocation_type)) &&
2276 (m.DeclaringType == closure_invocation_type))
2280 // Ugly: we need to find out the type of `m', and depending
2281 // on this, tell whether we accept or not
2283 if (m is MethodBase){
2284 MethodBase mb = (MethodBase) m;
2285 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2287 if (ma == MethodAttributes.Private)
2288 return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
2289 IsNestedChildOf (closure_invocation_type, m.DeclaringType);
2292 // FamAndAssem requires that we not only derivate, but we are on the
2295 if (ma == MethodAttributes.FamANDAssem){
2296 if (closure_invocation_assembly != mb.DeclaringType.Assembly)
2300 // Assembly and FamORAssem succeed if we're in the same assembly.
2301 if ((ma == MethodAttributes.Assembly) || (ma == MethodAttributes.FamORAssem)){
2302 if (closure_invocation_assembly == mb.DeclaringType.Assembly)
2306 // We already know that we aren't in the same assembly.
2307 if (ma == MethodAttributes.Assembly)
2310 // Family and FamANDAssem require that we derive.
2311 if ((ma == MethodAttributes.Family) || (ma == MethodAttributes.FamANDAssem)){
2312 if (closure_invocation_type == null)
2315 if (!IsSubclassOrNestedChildOf (closure_invocation_type, mb.DeclaringType))
2318 // Although a derived class can access protected members of its base class
2319 // it cannot do so through an instance of the base class (CS1540).
2320 if (!mb.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
2321 (closure_qualifier_type != null) &&
2322 closure_invocation_type.IsSubclassOf (closure_qualifier_type))
2332 if (m is FieldInfo){
2333 FieldInfo fi = (FieldInfo) m;
2334 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2336 if (fa == FieldAttributes.Private)
2337 return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
2338 IsNestedChildOf (closure_invocation_type, m.DeclaringType);
2341 // FamAndAssem requires that we not only derivate, but we are on the
2344 if (fa == FieldAttributes.FamANDAssem){
2345 if (closure_invocation_assembly != fi.DeclaringType.Assembly)
2349 // Assembly and FamORAssem succeed if we're in the same assembly.
2350 if ((fa == FieldAttributes.Assembly) || (fa == FieldAttributes.FamORAssem)){
2351 if (closure_invocation_assembly == fi.DeclaringType.Assembly)
2355 // We already know that we aren't in the same assembly.
2356 if (fa == FieldAttributes.Assembly)
2359 // Family and FamANDAssem require that we derive.
2360 if ((fa == FieldAttributes.Family) || (fa == FieldAttributes.FamANDAssem)){
2361 if (closure_invocation_type == null)
2364 if (!IsSubclassOrNestedChildOf (closure_invocation_type, fi.DeclaringType))
2367 // Although a derived class can access protected members of its base class
2368 // it cannot do so through an instance of the base class (CS1540).
2369 if (!fi.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
2370 (closure_qualifier_type != null) &&
2371 closure_invocation_type.IsSubclassOf (closure_qualifier_type))
2382 // EventInfos and PropertyInfos, return true because they lack permission
2383 // informaiton, so we need to check later on the methods.
2388 static MemberFilter FilterWithClosure_delegate = new MemberFilter (FilterWithClosure);
2389 static MemberFilter FilterNone_delegate = new MemberFilter (FilterNone);
2392 // Looks up a member called `name' in the `queried_type'. This lookup
2393 // is done by code that is contained in the definition for `invocation_type'
2394 // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
2396 // `invocation_type' is used to check whether we're allowed to access the requested
2397 // member wrt its protection level.
2399 // When called from MemberAccess, `qualifier_type' is the type which is used to access
2400 // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
2401 // is B and qualifier_type is A). This is used to do the CS1540 check.
2403 // When resolving a SimpleName, `qualifier_type' is null.
2405 // The `qualifier_type' is used for the CS1540 check; it's normally either null or
2406 // the same than `queried_type' - except when we're being called from BaseAccess;
2407 // in this case, `invocation_type' is the current type and `queried_type' the base
2408 // type, so this'd normally trigger a CS1540.
2410 // The binding flags are `bf' and the kind of members being looked up are `mt'
2412 // The return value always includes private members which code in `invocation_type'
2413 // is allowed to access (using the specified `qualifier_type' if given); only use
2414 // BindingFlags.NonPublic to bypass the permission check.
2416 // Returns an array of a single element for everything but Methods/Constructors
2417 // that might return multiple matches.
2419 public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_type,
2420 Type queried_type, MemberTypes mt,
2421 BindingFlags original_bf, string name)
2423 Timer.StartTimer (TimerType.MemberLookup);
2425 MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_type,
2426 queried_type, mt, original_bf, name);
2428 Timer.StopTimer (TimerType.MemberLookup);
2433 static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_type,
2434 Type queried_type, MemberTypes mt,
2435 BindingFlags original_bf, string name)
2437 BindingFlags bf = original_bf;
2439 ArrayList method_list = null;
2440 Type current_type = queried_type;
2441 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2442 bool skip_iface_check = true, used_cache = false;
2443 bool always_ok_flag = false;
2445 closure_name = name;
2446 closure_invocation_type = invocation_type;
2447 closure_invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2448 closure_qualifier_type = qualifier_type;
2451 // If we are a nested class, we always have access to our container
2454 if (invocation_type != null){
2455 string invocation_name = invocation_type.FullName;
2456 if (invocation_name.IndexOf ('+') != -1){
2457 string container = queried_type.FullName + "+";
2458 int container_length = container.Length;
2460 if (invocation_name.Length > container_length){
2461 string shared = invocation_name.Substring (0, container_length);
2463 if (shared == container)
2464 always_ok_flag = true;
2473 // `NonPublic' is lame, because it includes both protected and
2474 // private methods, so we need to control this behavior by
2475 // explicitly tracking if a private method is ok or not.
2477 // The possible cases are:
2478 // public, private and protected (internal does not come into the
2481 if ((invocation_type != null) &&
2482 ((invocation_type == current_type) ||
2483 IsNestedChildOf (invocation_type, current_type)) ||
2485 bf = original_bf | BindingFlags.NonPublic;
2489 closure_private_ok = (original_bf & BindingFlags.NonPublic) != 0;
2490 closure_queried_type = current_type;
2492 Timer.StopTimer (TimerType.MemberLookup);
2494 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2496 Timer.StartTimer (TimerType.MemberLookup);
2499 // When queried for an interface type, the cache will automatically check all
2500 // inherited members, so we don't need to do this here. However, this only
2501 // works if we already used the cache in the first iteration of this loop.
2503 // If we used the cache in any further iteration, we can still terminate the
2504 // loop since the cache always looks in all parent classes.
2510 skip_iface_check = false;
2512 if (current_type == TypeManager.object_type)
2515 current_type = current_type.BaseType;
2518 // This happens with interfaces, they have a null
2519 // basetype. Look members up in the Object class.
2521 if (current_type == null)
2522 current_type = TypeManager.object_type;
2525 if (list.Count == 0)
2529 // Events and types are returned by both `static' and `instance'
2530 // searches, which means that our above FindMembers will
2531 // return two copies of the same.
2533 if (list.Count == 1 && !(list [0] is MethodBase)){
2534 return (MemberInfo []) list;
2538 // Multiple properties: we query those just to find out the indexer
2541 if (list [0] is PropertyInfo)
2542 return (MemberInfo []) list;
2545 // We found an event: the cache lookup returns both the event and
2546 // its private field.
2548 if (list [0] is EventInfo) {
2549 if ((list.Count == 2) && (list [1] is FieldInfo))
2550 return new MemberInfo [] { list [0] };
2557 // We found methods, turn the search into "method scan"
2561 method_list = CopyNewMethods (method_list, list);
2562 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2563 } while (searching);
2565 if (method_list != null && method_list.Count > 0)
2566 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2569 // This happens if we already used the cache in the first iteration, in this case
2570 // the cache already looked in all interfaces.
2572 if (skip_iface_check)
2576 // Interfaces do not list members they inherit, so we have to
2579 if (!queried_type.IsInterface)
2582 if (queried_type.IsArray)
2583 queried_type = TypeManager.array_type;
2585 TypeExpr [] ifaces = GetInterfaces (queried_type);
2589 foreach (TypeExpr itype in ifaces){
2592 x = MemberLookup (null, null, itype.Type, mt, bf, name);
2601 // This is used to extract properties and event declarations from a type
2603 static MemberInfo [] SpecialContainerLookup (Type t, bool is_static)
2605 BindingFlags bf = BindingFlags.DeclaredOnly | (is_static ? BindingFlags.Static : BindingFlags.Instance);
2607 bf |= BindingFlags.Public | BindingFlags.NonPublic;
2609 if (t is TypeBuilder) {
2610 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
2612 return (MemberInfo []) decl.FindMembers (
2613 MemberTypes.Property | MemberTypes.Event,
2614 bf, FilterNone_delegate, null);
2616 return t.FindMembers (MemberTypes.Property | MemberTypes.Event,
2617 bf, FilterNone_delegate, null);
2622 public static bool IsSpecialMethod (MethodBase mb)
2624 Type t = mb.DeclaringType;
2626 MemberInfo [] matches = TypeManager.SpecialContainerLookup (t, mb.IsStatic);
2627 if (matches == null)
2630 foreach (MemberInfo mi in matches){
2631 if (mi is PropertyBuilder){
2632 Pair p = (Pair) properties [mi];
2634 if (p.First == mb || p.Second == mb)
2636 } else if (mi is PropertyInfo){
2637 MethodInfo [] methods = ((PropertyInfo) mi).GetAccessors (true);
2639 foreach (MethodInfo m in methods){
2643 } else if (mi is MyEventBuilder){
2644 Pair p = (Pair) events [mi];
2646 if (p.First == mb || p.Second == mb)
2648 } else if (mi is EventInfo){
2649 EventInfo ei = ((EventInfo) mi);
2651 if (ei.GetAddMethod (true) == mb)
2654 if (ei.GetRemoveMethod (true) == mb)
2657 if (ei.GetRaiseMethod (true) == mb)
2663 // Now check if it is an operator method
2667 if (s.StartsWith ("op_")){
2668 foreach (string name in Unary.oper_names){
2673 foreach (string name in Binary.oper_names){
2687 /// There is exactly one instance of this class per type.
2689 public sealed class TypeHandle : IMemberContainer {
2690 public readonly TypeHandle BaseType;
2692 readonly int id = ++next_id;
2693 static int next_id = 0;
2696 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2697 /// a TypeHandle yet, a new instance of it is created. This static method
2698 /// ensures that we'll only have one TypeHandle instance per type.
2700 public static TypeHandle GetTypeHandle (Type t)
2702 TypeHandle handle = (TypeHandle) type_hash [t];
2706 handle = new TypeHandle (t);
2707 type_hash.Add (t, handle);
2712 /// Returns the TypeHandle for TypeManager.object_type.
2714 public static IMemberContainer ObjectType {
2716 if (object_type != null)
2719 object_type = GetTypeHandle (TypeManager.object_type);
2726 /// Returns the TypeHandle for TypeManager.array_type.
2728 public static IMemberContainer ArrayType {
2730 if (array_type != null)
2733 array_type = GetTypeHandle (TypeManager.array_type);
2739 private static PtrHashtable type_hash = new PtrHashtable ();
2741 private static TypeHandle object_type = null;
2742 private static TypeHandle array_type = null;
2745 private bool is_interface;
2746 private MemberCache member_cache;
2748 private TypeHandle (Type type)
2751 if (type.BaseType != null)
2752 BaseType = GetTypeHandle (type.BaseType);
2753 this.is_interface = type.IsInterface;
2754 this.member_cache = new MemberCache (this);
2757 // IMemberContainer methods
2759 public string Name {
2761 return type.FullName;
2771 public IMemberContainer Parent {
2777 public bool IsInterface {
2779 return is_interface;
2783 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
2785 MemberInfo [] members;
2786 if (mt == MemberTypes.Event)
2787 members = type.GetEvents (bf | BindingFlags.DeclaredOnly);
2789 members = type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
2791 Array.Reverse (members);
2793 return new MemberList (members);
2796 // IMemberFinder methods
2798 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
2799 MemberFilter filter, object criteria)
2801 return member_cache.FindMembers (mt, bf, name, filter, criteria);
2804 public MemberCache MemberCache {
2806 return member_cache;
2810 public override string ToString ()
2812 if (BaseType != null)
2813 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
2815 return "TypeHandle (" + id + "," + Name + ")";