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 return t.MakeByRefType ();
521 static Hashtable pointers = new Hashtable ();
524 // Gets the pointer to T version of the Type (T*)
526 public static Type GetPointerType (Type t)
528 string tname = t.FullName + "*";
530 Type ret = t.Assembly.GetType (tname);
533 // If the type comes from the assembly we are building
534 // We need the Hashtable, because .NET 1.1 will return different instance types
535 // every time we call ModuleBuilder.GetType.
538 if (pointers [t] == null)
539 pointers [t] = CodeGen.ModuleBuilder.GetType (tname);
541 ret = (Type) pointers [t];
548 // Low-level lookup, cache-less
550 static Type LookupTypeReflection (string name)
554 foreach (Assembly a in assemblies){
555 t = a.GetType (name);
560 TypeAttributes ta = t.Attributes & TypeAttributes.VisibilityMask;
561 if (ta == TypeAttributes.NotPublic ||
562 ta == TypeAttributes.NestedPrivate ||
563 ta == TypeAttributes.NestedAssembly ||
564 ta == TypeAttributes.NestedFamANDAssem){
567 // In .NET pointers turn out to be private, even if their
568 // element type is not
571 t = t.GetElementType ();
581 foreach (ModuleBuilder mb in modules) {
582 t = mb.GetType (name);
590 static Hashtable negative_hits = new Hashtable ();
593 // This function is used when you want to avoid the lookups, and want to go
594 // directly to the source. This will use the cache.
596 // Notice that bypassing the cache is bad, because on Microsoft.NET runtime
597 // GetType ("DynamicType[]") != GetType ("DynamicType[]"), and there is no
598 // way to test things other than doing a fullname compare
600 public static Type LookupTypeDirect (string name)
602 Type t = (Type) types [name];
606 t = LookupTypeReflection (name);
615 /// Returns the Type associated with @name, takes care of the fact that
616 /// reflection expects nested types to be separated from the main type
617 /// with a "+" instead of a "."
619 public static Type LookupType (string name)
624 // First lookup in user defined and cached values
627 t = (Type) types [name];
631 // Two thirds of the failures are caught here.
632 if (negative_hits.Contains (name))
635 string [] elements = name.Split ('.');
636 int count = elements.Length;
638 for (int n = 1; n <= count; n++){
639 string top_level_type = String.Join (".", elements, 0, n);
641 // One third of the failures are caught here.
642 if (negative_hits.Contains (top_level_type))
645 t = (Type) types [top_level_type];
647 t = LookupTypeReflection (top_level_type);
649 negative_hits [top_level_type] = true;
660 // We know that System.Object does not have children, and since its the parent of
661 // all the objects, it always gets probbed for inner classes.
663 if (top_level_type == "System.Object")
666 string newt = top_level_type + "+" + String.Join ("+", elements, n, count - n);
667 //Console.WriteLine ("Looking up: " + newt + " " + name);
668 t = LookupTypeReflection (newt);
670 negative_hits [name] = true;
675 negative_hits [name] = true;
680 /// Computes the namespaces that we import from the assemblies we reference.
682 public static void ComputeNamespaces ()
684 MethodInfo assembly_get_namespaces = typeof (Assembly).GetMethod ("GetNamespaces", BindingFlags.Instance|BindingFlags.NonPublic);
687 // First add the assembly namespaces
689 if (assembly_get_namespaces != null){
690 int count = assemblies.Length;
693 for (int i = 0; i < count; i++){
694 Assembly a = assemblies [i];
695 string [] namespaces = (string []) assembly_get_namespaces.Invoke (a, null);
696 foreach (string ns in namespaces){
699 Namespace.LookupNamespace (ns, true);
703 foreach (Assembly a in assemblies){
704 foreach (Type t in a.GetTypes ()){
705 string ns = t.Namespace;
707 // t.Namespace returns null for <PrivateImplDetails>
708 if (ns == ""|| ns == null)
710 Namespace.LookupNamespace (ns, true);
716 public static bool NamespaceClash (string name, Location loc)
718 if (Namespace.LookupNamespace (name, false) == null)
721 Report.Error (519, loc, String.Format ("`{0}' clashes with a predefined namespace", name));
726 /// Returns the C# name of a type if possible, or the full type name otherwise
728 static public string CSharpName (Type t)
730 return Regex.Replace (t.FullName,
732 @"(Int32|UInt32|Int16|UInt16|Int64|UInt64|" +
733 @"Single|Double|Char|Decimal|Byte|SByte|Object|" +
734 @"Boolean|String|Void)" +
736 new MatchEvaluator (CSharpNameMatch));
739 static String CSharpNameMatch (Match match)
741 string s = match.Groups [1].Captures [0].Value;
743 Replace ("int32", "int").
744 Replace ("uint32", "uint").
745 Replace ("int16", "short").
746 Replace ("uint16", "ushort").
747 Replace ("int64", "long").
748 Replace ("uint64", "ulong").
749 Replace ("single", "float").
750 Replace ("boolean", "bool")
751 + match.Groups [2].Captures [0].Value;
755 /// Returns the signature of the method
757 static public string CSharpSignature (MethodBase mb)
762 // FIXME: We should really have a single function to do
763 // everything instead of the following 5 line pattern
765 ParameterData iparams = LookupParametersByBuilder (mb);
767 if (iparams == null){
768 ParameterInfo [] pi = mb.GetParameters ();
769 iparams = new ReflectionParameters (pi);
772 for (int i = 0; i < iparams.Count; i++) {
776 sig += iparams.ParameterDesc(i);
780 return mb.DeclaringType.Name + "." + mb.Name + sig;
784 /// Looks up a type, and aborts if it is not found. This is used
785 /// by types required by the compiler
787 static Type CoreLookupType (string name)
789 Type t = LookupTypeDirect (name);
792 Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
793 Environment.Exit (0);
800 /// Returns the MethodInfo for a method named `name' defined
801 /// in type `t' which takes arguments of types `args'
803 static MethodInfo GetMethod (Type t, string name, Type [] args, bool report_errors)
811 list = FindMembers (t, MemberTypes.Method, instance_and_static | BindingFlags.Public,
812 signature_filter, sig);
813 if (list.Count == 0) {
815 Report.Error (-19, "Can not find the core function `" + name + "'");
819 MethodInfo mi = list [0] as MethodInfo;
822 Report.Error (-19, "Can not find the core function `" + name + "'");
829 static MethodInfo GetMethod (Type t, string name, Type [] args)
831 return GetMethod (t, name, args, true);
836 /// Returns the ConstructorInfo for "args"
838 static ConstructorInfo GetConstructor (Type t, Type [] args)
846 list = FindMembers (t, MemberTypes.Constructor,
847 instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly,
848 signature_filter, sig);
849 if (list.Count == 0){
850 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
854 ConstructorInfo ci = list [0] as ConstructorInfo;
856 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
863 public static void InitEnumUnderlyingTypes ()
866 int32_type = CoreLookupType ("System.Int32");
867 int64_type = CoreLookupType ("System.Int64");
868 uint32_type = CoreLookupType ("System.UInt32");
869 uint64_type = CoreLookupType ("System.UInt64");
870 byte_type = CoreLookupType ("System.Byte");
871 sbyte_type = CoreLookupType ("System.SByte");
872 short_type = CoreLookupType ("System.Int16");
873 ushort_type = CoreLookupType ("System.UInt16");
877 /// The types have to be initialized after the initial
878 /// population of the type has happened (for example, to
879 /// bootstrap the corlib.dll
881 public static void InitCoreTypes ()
883 object_type = CoreLookupType ("System.Object");
884 value_type = CoreLookupType ("System.ValueType");
886 InitEnumUnderlyingTypes ();
888 char_type = CoreLookupType ("System.Char");
889 string_type = CoreLookupType ("System.String");
890 float_type = CoreLookupType ("System.Single");
891 double_type = CoreLookupType ("System.Double");
892 char_ptr_type = CoreLookupType ("System.Char*");
893 decimal_type = CoreLookupType ("System.Decimal");
894 bool_type = CoreLookupType ("System.Boolean");
895 enum_type = CoreLookupType ("System.Enum");
897 multicast_delegate_type = CoreLookupType ("System.MulticastDelegate");
898 delegate_type = CoreLookupType ("System.Delegate");
900 array_type = CoreLookupType ("System.Array");
901 void_type = CoreLookupType ("System.Void");
902 type_type = CoreLookupType ("System.Type");
904 runtime_field_handle_type = CoreLookupType ("System.RuntimeFieldHandle");
905 runtime_helpers_type = CoreLookupType ("System.Runtime.CompilerServices.RuntimeHelpers");
906 default_member_type = CoreLookupType ("System.Reflection.DefaultMemberAttribute");
907 runtime_handle_type = CoreLookupType ("System.RuntimeTypeHandle");
908 asynccallback_type = CoreLookupType ("System.AsyncCallback");
909 iasyncresult_type = CoreLookupType ("System.IAsyncResult");
910 ienumerator_type = CoreLookupType ("System.Collections.IEnumerator");
911 ienumerable_type = CoreLookupType ("System.Collections.IEnumerable");
912 idisposable_type = CoreLookupType ("System.IDisposable");
913 icloneable_type = CoreLookupType ("System.ICloneable");
914 monitor_type = CoreLookupType ("System.Threading.Monitor");
915 intptr_type = CoreLookupType ("System.IntPtr");
917 attribute_type = CoreLookupType ("System.Attribute");
918 attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
919 dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
920 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
921 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
922 param_array_type = CoreLookupType ("System.ParamArrayAttribute");
923 in_attribute_type = CoreLookupType ("System.Runtime.InteropServices.InAttribute");
926 // Sigh. Remove this before the release. Wonder what versions of Mono
927 // people are running.
929 guid_attr_type = LookupType ("System.Runtime.InteropServices.GuidAttribute");
931 unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
933 void_ptr_type = CoreLookupType ("System.Void*");
935 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
937 exception_type = CoreLookupType ("System.Exception");
938 invalid_operation_exception_type = CoreLookupType ("System.InvalidOperationException");
943 obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
944 conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
947 // When compiling corlib, store the "real" types here.
949 if (!RootContext.StdLib) {
950 system_int32_type = typeof (System.Int32);
951 system_array_type = typeof (System.Array);
952 system_type_type = typeof (System.Type);
953 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
955 Type [] void_arg = { };
956 system_int_array_get_length = GetMethod (
957 system_array_type, "get_Length", void_arg);
958 system_int_array_get_rank = GetMethod (
959 system_array_type, "get_Rank", void_arg);
960 system_object_array_clone = GetMethod (
961 system_array_type, "Clone", void_arg);
963 Type [] system_int_arg = { system_int32_type };
964 system_int_array_get_length_int = GetMethod (
965 system_array_type, "GetLength", system_int_arg);
966 system_int_array_get_upper_bound_int = GetMethod (
967 system_array_type, "GetUpperBound", system_int_arg);
968 system_int_array_get_lower_bound_int = GetMethod (
969 system_array_type, "GetLowerBound", system_int_arg);
971 Type [] system_array_int_arg = { system_array_type, system_int32_type };
972 system_void_array_copyto_array_int = GetMethod (
973 system_array_type, "CopyTo", system_array_int_arg);
975 Type [] system_3_type_arg = {
976 system_type_type, system_type_type, system_type_type };
977 Type [] system_4_type_arg = {
978 system_type_type, system_type_type, system_type_type, system_type_type };
980 MethodInfo set_corlib_type_builders = GetMethod (
981 system_assemblybuilder_type, "SetCorlibTypeBuilders",
982 system_4_type_arg, false);
984 if (set_corlib_type_builders != null) {
985 object[] args = new object [4];
986 args [0] = object_type;
987 args [1] = value_type;
988 args [2] = enum_type;
989 args [3] = void_type;
991 set_corlib_type_builders.Invoke (CodeGen.AssemblyBuilder, args);
993 // Compatibility for an older version of the class libs.
994 set_corlib_type_builders = GetMethod (
995 system_assemblybuilder_type, "SetCorlibTypeBuilders",
996 system_3_type_arg, true);
998 if (set_corlib_type_builders == null) {
999 Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
1003 object[] args = new object [3];
1004 args [0] = object_type;
1005 args [1] = value_type;
1006 args [2] = enum_type;
1008 set_corlib_type_builders.Invoke (CodeGen.AssemblyBuilder, args);
1012 system_object_expr.Type = object_type;
1013 system_string_expr.Type = string_type;
1014 system_boolean_expr.Type = bool_type;
1015 system_decimal_expr.Type = decimal_type;
1016 system_single_expr.Type = float_type;
1017 system_double_expr.Type = double_type;
1018 system_sbyte_expr.Type = sbyte_type;
1019 system_byte_expr.Type = byte_type;
1020 system_int16_expr.Type = short_type;
1021 system_uint16_expr.Type = ushort_type;
1022 system_int32_expr.Type = int32_type;
1023 system_uint32_expr.Type = uint32_type;
1024 system_int64_expr.Type = int64_type;
1025 system_uint64_expr.Type = uint64_type;
1026 system_char_expr.Type = char_type;
1027 system_void_expr.Type = void_type;
1028 system_asynccallback_expr.Type = asynccallback_type;
1029 system_iasyncresult_expr.Type = iasyncresult_type;
1030 system_valuetype_expr.Type = value_type;
1034 // The helper methods that are used by the compiler
1036 public static void InitCodeHelpers ()
1039 // Now load the default methods that we use.
1041 Type [] string_string = { string_type, string_type };
1042 string_concat_string_string = GetMethod (
1043 string_type, "Concat", string_string);
1044 Type [] string_string_string = { string_type, string_type, string_type };
1045 string_concat_string_string_string = GetMethod (
1046 string_type, "Concat", string_string_string);
1047 Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
1048 string_concat_string_string_string_string = GetMethod (
1049 string_type, "Concat", string_string_string_string);
1051 Type [] object_object = { object_type, object_type };
1052 string_concat_object_object = GetMethod (
1053 string_type, "Concat", object_object);
1055 Type [] string_ = { string_type };
1056 string_isinterneted_string = GetMethod (
1057 string_type, "IsInterned", string_);
1059 Type [] runtime_type_handle = { runtime_handle_type };
1060 system_type_get_type_from_handle = GetMethod (
1061 type_type, "GetTypeFromHandle", runtime_type_handle);
1063 Type [] delegate_delegate = { delegate_type, delegate_type };
1064 delegate_combine_delegate_delegate = GetMethod (
1065 delegate_type, "Combine", delegate_delegate);
1067 delegate_remove_delegate_delegate = GetMethod (
1068 delegate_type, "Remove", delegate_delegate);
1073 Type [] void_arg = { };
1074 object_getcurrent_void = GetMethod (
1075 ienumerator_type, "get_Current", void_arg);
1076 bool_movenext_void = GetMethod (
1077 ienumerator_type, "MoveNext", void_arg);
1078 void_reset_void = GetMethod (
1079 ienumerator_type, "Reset", void_arg);
1080 void_dispose_void = GetMethod (
1081 idisposable_type, "Dispose", void_arg);
1082 int_get_offset_to_string_data = GetMethod (
1083 runtime_helpers_type, "get_OffsetToStringData", void_arg);
1084 int_array_get_length = GetMethod (
1085 array_type, "get_Length", void_arg);
1086 int_array_get_rank = GetMethod (
1087 array_type, "get_Rank", void_arg);
1088 ienumerable_getenumerator_void = GetMethod (
1089 ienumerable_type, "GetEnumerator", void_arg);
1094 Type [] int_arg = { int32_type };
1095 int_array_get_length_int = GetMethod (
1096 array_type, "GetLength", int_arg);
1097 int_array_get_upper_bound_int = GetMethod (
1098 array_type, "GetUpperBound", int_arg);
1099 int_array_get_lower_bound_int = GetMethod (
1100 array_type, "GetLowerBound", int_arg);
1103 // System.Array methods
1105 object_array_clone = GetMethod (
1106 array_type, "Clone", void_arg);
1107 Type [] array_int_arg = { array_type, int32_type };
1108 void_array_copyto_array_int = GetMethod (
1109 array_type, "CopyTo", array_int_arg);
1114 Type [] object_arg = { object_type };
1115 void_monitor_enter_object = GetMethod (
1116 monitor_type, "Enter", object_arg);
1117 void_monitor_exit_object = GetMethod (
1118 monitor_type, "Exit", object_arg);
1120 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1122 void_initializearray_array_fieldhandle = GetMethod (
1123 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1128 int_getlength_int = GetMethod (
1129 array_type, "GetLength", int_arg);
1132 // Decimal constructors
1134 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1135 void_decimal_ctor_five_args = GetConstructor (
1136 decimal_type, dec_arg);
1141 cons_param_array_attribute = GetConstructor (
1142 param_array_type, void_arg);
1144 unverifiable_code_ctor = GetConstructor (
1145 unverifiable_code_type, void_arg);
1148 // InvalidOperationException
1150 invalid_operation_ctor = GetConstructor (
1151 invalid_operation_exception_type, void_arg);
1155 object_ctor = GetConstructor (object_type, void_arg);
1159 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1161 static Hashtable type_hash = new Hashtable ();
1164 /// This is the "old", non-cache based FindMembers() function. We cannot use
1165 /// the cache here because there is no member name argument.
1167 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1168 MemberFilter filter, object criteria)
1170 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1173 // `builder_to_declspace' contains all dynamic types.
1177 Timer.StartTimer (TimerType.FindMembers);
1178 list = decl.FindMembers (mt, bf, filter, criteria);
1179 Timer.StopTimer (TimerType.FindMembers);
1184 // We have to take care of arrays specially, because GetType on
1185 // a TypeBuilder array will return a Type, not a TypeBuilder,
1186 // and we can not call FindMembers on this type.
1188 if (t.IsSubclassOf (TypeManager.array_type))
1189 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1192 // Since FindMembers will not lookup both static and instance
1193 // members, we emulate this behaviour here.
1195 if ((bf & instance_and_static) == instance_and_static){
1196 MemberInfo [] i_members = t.FindMembers (
1197 mt, bf & ~BindingFlags.Static, filter, criteria);
1199 int i_len = i_members.Length;
1201 MemberInfo one = i_members [0];
1204 // If any of these are present, we are done!
1206 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1207 return new MemberList (i_members);
1210 MemberInfo [] s_members = t.FindMembers (
1211 mt, bf & ~BindingFlags.Instance, filter, criteria);
1213 int s_len = s_members.Length;
1214 if (i_len > 0 || s_len > 0)
1215 return new MemberList (i_members, s_members);
1218 return new MemberList (i_members);
1220 return new MemberList (s_members);
1224 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1229 /// This method is only called from within MemberLookup. It tries to use the member
1230 /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
1231 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1232 /// our return value will already contain all inherited members and the caller don't need
1233 /// to check base classes and interfaces anymore.
1235 private static MemberList MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1236 string name, out bool used_cache)
1238 bool not_loaded_corlib = (t.Assembly == CodeGen.AssemblyBuilder);
1241 // We have to take care of arrays specially, because GetType on
1242 // a TypeBuilder array will return a Type, not a TypeBuilder,
1243 // and we can not call FindMembers on this type.
1245 if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
1247 return TypeHandle.ArrayType.MemberCache.FindMembers (
1248 mt, bf, name, FilterWithClosure_delegate, null);
1252 // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
1253 // and we can ask the DeclSpace for the MemberCache.
1255 if (t is TypeBuilder) {
1256 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1257 MemberCache cache = decl.MemberCache;
1260 // If this DeclSpace has a MemberCache, use it.
1263 if (cache != null) {
1265 return cache.FindMembers (
1266 mt, bf, name, FilterWithClosure_delegate, null);
1269 // If there is no MemberCache, we need to use the "normal" FindMembers.
1272 Timer.StartTimer (TimerType.FindMembers);
1273 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
1274 FilterWithClosure_delegate, name);
1275 Timer.StopTimer (TimerType.FindMembers);
1281 // This call will always succeed. There is exactly one TypeHandle instance per
1282 // type, TypeHandle.GetTypeHandle() will either return it or create a new one
1283 // if it didn't already exist.
1285 TypeHandle handle = TypeHandle.GetTypeHandle (t);
1288 return handle.MemberCache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1291 public static bool IsBuiltinType (Type t)
1293 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1294 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1295 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1296 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
1303 // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
1304 // the pieces in the code where we use IsBuiltinType and special case decimal_type.
1306 public static bool IsCLRType (Type t)
1308 if (t == object_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 == bool_type ||
1311 t == sbyte_type || t == byte_type || t == ushort_type)
1317 public static bool IsDelegateType (Type t)
1319 if (t.IsSubclassOf (TypeManager.delegate_type))
1325 public static bool IsEnumType (Type t)
1327 if (t == TypeManager.enum_type || t.IsSubclassOf (TypeManager.enum_type))
1332 public static bool IsBuiltinOrEnum (Type t)
1334 if (IsBuiltinType (t))
1344 // Only a quick hack to get things moving, while real runtime support appears
1346 public static bool IsGeneric (Type t)
1348 DeclSpace ds = (DeclSpace) builder_to_declspace [t];
1350 return ds.IsGeneric;
1354 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1356 public static bool IsUnmanagedType (Type t)
1358 if (IsBuiltinType (t) && t != TypeManager.string_type)
1367 if (IsValueType (t)){
1368 if (t is TypeBuilder){
1369 TypeContainer tc = LookupTypeContainer (t);
1371 foreach (Field f in tc.Fields){
1372 if (f.FieldBuilder.IsStatic)
1374 if (!IsUnmanagedType (f.FieldBuilder.FieldType))
1378 FieldInfo [] fields = t.GetFields ();
1380 foreach (FieldInfo f in fields){
1383 if (!IsUnmanagedType (f.FieldType))
1393 public static bool IsValueType (Type t)
1395 return t.IsGenericParameter || t.IsValueType;
1398 public static bool IsInterfaceType (Type t)
1400 Interface iface = builder_to_declspace [t] as Interface;
1408 public static bool IsEqualGenericType (Type a, Type b)
1410 if ((a is TypeBuilder) && a.IsGenericTypeDefinition && b.IsGenericInstance) {
1412 // `a' is a generic type definition's TypeBuilder and `b' is a
1413 // generic instance of the same type.
1419 // void Test (Stack<T> stack) { }
1422 // The first argument of `Test' will be the generic instance
1423 // "Stack<!0>" - which is the same type than the "Stack" TypeBuilder.
1425 if (a != b.GetGenericTypeDefinition ())
1428 Type[] aparams = a.GetGenericArguments ();
1429 Type[] bparams = b.GetGenericArguments ();
1431 if (aparams.Length != bparams.Length)
1434 for (int i = 0; i < aparams.Length; i++)
1435 if (aparams [i] != bparams [i])
1445 // Checks whether `type' is a subclass or nested child of `parent'.
1447 public static bool IsSubclassOrNestedChildOf (Type type, Type parent)
1450 if ((type == parent) || type.IsSubclassOf (parent) ||
1451 IsEqualGenericType (type, parent))
1454 // Handle nested types.
1455 type = type.DeclaringType;
1456 } while (type != null);
1462 // Checks whether `type' is a nested child of `parent'.
1464 public static bool IsNestedChildOf (Type type, Type parent)
1469 type = type.DeclaringType;
1470 while (type != null) {
1474 type = type.DeclaringType;
1481 // Do the right thing when returning the element type of an
1482 // array type based on whether we are compiling corlib or not
1484 public static Type GetElementType (Type t)
1486 if (RootContext.StdLib)
1487 return t.GetElementType ();
1489 return TypeToCoreType (t.GetElementType ());
1493 /// Returns the User Defined Types
1495 public static ArrayList UserTypes {
1501 public static Hashtable TypeContainers {
1503 return typecontainers;
1507 static Hashtable attr_to_allowmult;
1509 public static void RegisterAttributeAllowMultiple (Type attr_type, bool allow)
1511 if (attr_to_allowmult == null)
1512 attr_to_allowmult = new PtrHashtable ();
1514 if (attr_to_allowmult.Contains (attr_type))
1517 attr_to_allowmult.Add (attr_type, allow);
1521 public static bool AreMultipleAllowed (Type attr_type)
1523 if (!(attr_type is TypeBuilder)) {
1524 System.Attribute [] attrs = System.Attribute.GetCustomAttributes (attr_type);
1526 foreach (System.Attribute tmp in attrs)
1527 if (tmp is AttributeUsageAttribute) {
1528 return ((AttributeUsageAttribute) tmp).AllowMultiple;
1534 if (attr_to_allowmult == null)
1537 return (bool) attr_to_allowmult [attr_type];
1540 static Hashtable builder_to_constant;
1542 public static void RegisterConstant (FieldBuilder fb, Const c)
1544 if (builder_to_constant == null)
1545 builder_to_constant = new PtrHashtable ();
1547 if (builder_to_constant.Contains (fb))
1550 builder_to_constant.Add (fb, c);
1553 public static Const LookupConstant (FieldBuilder fb)
1555 if (builder_to_constant == null)
1558 return (Const) builder_to_constant [fb];
1562 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1566 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1567 /// for anything which is dynamic, and we need this in a number of places,
1568 /// we register this information here, and use it afterwards.
1570 static public bool RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1575 method_arguments.Add (mb, args);
1576 method_internal_params.Add (mb, ip);
1581 static public InternalParameters LookupParametersByBuilder (MethodBase mb)
1583 if (! (mb is ConstructorBuilder || mb is MethodBuilder))
1586 if (method_internal_params.Contains (mb))
1587 return (InternalParameters) method_internal_params [mb];
1589 throw new Exception ("Argument for Method not registered" + mb);
1593 /// Returns the argument types for a method based on its methodbase
1595 /// For dynamic methods, we use the compiler provided types, for
1596 /// methods from existing assemblies we load them from GetParameters,
1597 /// and insert them into the cache
1599 static public Type [] GetArgumentTypes (MethodBase mb)
1601 if (method_arguments.Contains (mb))
1602 return (Type []) method_arguments [mb];
1604 ParameterInfo [] pi = mb.GetParameters ();
1606 Type [] types = new Type [c];
1608 for (int i = 0; i < c; i++)
1609 types [i] = pi [i].ParameterType;
1611 method_arguments.Add (mb, types);
1617 /// Returns the argument types for an indexer based on its PropertyInfo
1619 /// For dynamic indexers, we use the compiler provided types, for
1620 /// indexers from existing assemblies we load them from GetParameters,
1621 /// and insert them into the cache
1623 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1625 if (indexer_arguments.Contains (indexer))
1626 return (Type []) indexer_arguments [indexer];
1627 else if (indexer is PropertyBuilder)
1628 // If we're a PropertyBuilder and not in the
1629 // `indexer_arguments' hash, then we're a property and
1633 ParameterInfo [] pi = indexer.GetIndexParameters ();
1634 // Property, not an indexer.
1638 Type [] types = new Type [c];
1640 for (int i = 0; i < c; i++)
1641 types [i] = pi [i].ParameterType;
1643 indexer_arguments.Add (indexer, types);
1649 // This is a workaround the fact that GetValue is not
1650 // supported for dynamic types
1652 static Hashtable fields = new Hashtable ();
1653 static public bool RegisterFieldValue (FieldBuilder fb, object value)
1655 if (fields.Contains (fb))
1658 fields.Add (fb, value);
1663 static public object GetValue (FieldBuilder fb)
1668 static Hashtable fieldbuilders_to_fields = new Hashtable ();
1669 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1671 if (fieldbuilders_to_fields.Contains (fb))
1674 fieldbuilders_to_fields.Add (fb, f);
1679 // The return value can be null; This will be the case for
1680 // auxiliary FieldBuilders created by the compiler that have no
1681 // real field being declared on the source code
1683 static public FieldBase GetField (FieldInfo fb)
1685 return (FieldBase) fieldbuilders_to_fields [fb];
1688 static Hashtable events;
1690 static public bool RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1693 events = new Hashtable ();
1695 if (events.Contains (eb))
1698 events.Add (eb, new Pair (add, remove));
1703 static public MethodInfo GetAddMethod (EventInfo ei)
1705 if (ei is MyEventBuilder) {
1706 Pair pair = (Pair) events [ei];
1708 return (MethodInfo) pair.First;
1710 return ei.GetAddMethod ();
1713 static public MethodInfo GetRemoveMethod (EventInfo ei)
1715 if (ei is MyEventBuilder) {
1716 Pair pair = (Pair) events [ei];
1718 return (MethodInfo) pair.Second;
1720 return ei.GetRemoveMethod ();
1723 static Hashtable priv_fields_events;
1725 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1727 if (priv_fields_events == null)
1728 priv_fields_events = new Hashtable ();
1730 if (priv_fields_events.Contains (einfo))
1733 priv_fields_events.Add (einfo, builder);
1738 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1740 if (priv_fields_events == null)
1743 return (MemberInfo) priv_fields_events [ei];
1746 static Hashtable properties;
1748 static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase set)
1750 if (properties == null)
1751 properties = new Hashtable ();
1753 if (properties.Contains (pb))
1756 properties.Add (pb, new Pair (get, set));
1761 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get,
1762 MethodBase set, Type[] args)
1764 if (!RegisterProperty (pb, get,set))
1767 indexer_arguments.Add (pb, args);
1773 /// Given an array of interface types, expand and eliminate repeated ocurrences
1774 /// of an interface.
1778 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
1781 public static TypeExpr[] ExpandInterfaces (TypeExpr [] base_interfaces)
1783 ArrayList new_ifaces = new ArrayList ();
1785 foreach (TypeExpr iface in base_interfaces){
1786 if (!new_ifaces.Contains (iface))
1787 new_ifaces.Add (iface);
1789 TypeExpr [] implementing = iface.GetInterfaces ();
1791 foreach (TypeExpr imp in implementing){
1792 if (!new_ifaces.Contains (imp))
1793 new_ifaces.Add (imp);
1796 TypeExpr [] ret = new TypeExpr [new_ifaces.Count];
1797 new_ifaces.CopyTo (ret, 0);
1802 /// This function returns the interfaces in the type `t'. Works with
1803 /// both types and TypeBuilders.
1805 public static TypeExpr [] GetInterfaces (Type t)
1808 // The reason for catching the Array case is that Reflection.Emit
1809 // will not return a TypeBuilder for Array types of TypeBuilder types,
1810 // but will still throw an exception if we try to call GetInterfaces
1813 // Since the array interfaces are always constant, we return those for
1818 t = TypeManager.array_type;
1820 if (t is TypeBuilder){
1821 TypeExpr [] parent_ifaces;
1823 if (t.BaseType == null)
1824 parent_ifaces = NoTypeExprs;
1826 parent_ifaces = GetInterfaces (t.BaseType);
1827 TypeExpr [] type_ifaces = (TypeExpr []) builder_to_ifaces [t];
1828 if (type_ifaces == null)
1829 type_ifaces = NoTypeExprs;
1831 int parent_count = parent_ifaces.Length;
1832 TypeExpr [] result = new TypeExpr [parent_count + type_ifaces.Length];
1833 parent_ifaces.CopyTo (result, 0);
1834 type_ifaces.CopyTo (result, parent_count);
1838 Type [] ifaces = t.GetInterfaces ();
1840 TypeExpr [] result = new TypeExpr [ifaces.Length];
1841 for (int i = 0; i < ifaces.Length; i++)
1842 result [i] = new TypeExpression (ifaces [i], Location.Null);
1848 /// The following is used to check if a given type implements an interface.
1849 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
1851 public static bool ImplementsInterface (Type t, Type iface)
1853 TypeExpr [] interfaces;
1856 // FIXME OPTIMIZATION:
1857 // as soon as we hit a non-TypeBuiler in the interface
1858 // chain, we could return, as the `Type.GetInterfaces'
1859 // will return all the interfaces implement by the type
1863 interfaces = GetInterfaces (t);
1865 if (interfaces != null){
1866 foreach (TypeExpr i in interfaces){
1867 if (i.Type == iface)
1873 } while (t != null);
1878 static NumberFormatInfo nf_provider = CultureInfo.CurrentCulture.NumberFormat;
1880 // This is a custom version of Convert.ChangeType() which works
1881 // with the TypeBuilder defined types when compiling corlib.
1882 public static object ChangeType (object value, Type conversionType, out bool error)
1884 IConvertible convert_value = value as IConvertible;
1886 if (convert_value == null){
1892 // We must use Type.Equals() here since `conversionType' is
1893 // the TypeBuilder created version of a system type and not
1894 // the system type itself. You cannot use Type.GetTypeCode()
1895 // on such a type - it'd always return TypeCode.Object.
1899 if (conversionType.Equals (typeof (Boolean)))
1900 return (object)(convert_value.ToBoolean (nf_provider));
1901 else if (conversionType.Equals (typeof (Byte)))
1902 return (object)(convert_value.ToByte (nf_provider));
1903 else if (conversionType.Equals (typeof (Char)))
1904 return (object)(convert_value.ToChar (nf_provider));
1905 else if (conversionType.Equals (typeof (DateTime)))
1906 return (object)(convert_value.ToDateTime (nf_provider));
1907 else if (conversionType.Equals (typeof (Decimal)))
1908 return (object)(convert_value.ToDecimal (nf_provider));
1909 else if (conversionType.Equals (typeof (Double)))
1910 return (object)(convert_value.ToDouble (nf_provider));
1911 else if (conversionType.Equals (typeof (Int16)))
1912 return (object)(convert_value.ToInt16 (nf_provider));
1913 else if (conversionType.Equals (typeof (Int32)))
1914 return (object)(convert_value.ToInt32 (nf_provider));
1915 else if (conversionType.Equals (typeof (Int64)))
1916 return (object)(convert_value.ToInt64 (nf_provider));
1917 else if (conversionType.Equals (typeof (SByte)))
1918 return (object)(convert_value.ToSByte (nf_provider));
1919 else if (conversionType.Equals (typeof (Single)))
1920 return (object)(convert_value.ToSingle (nf_provider));
1921 else if (conversionType.Equals (typeof (String)))
1922 return (object)(convert_value.ToString (nf_provider));
1923 else if (conversionType.Equals (typeof (UInt16)))
1924 return (object)(convert_value.ToUInt16 (nf_provider));
1925 else if (conversionType.Equals (typeof (UInt32)))
1926 return (object)(convert_value.ToUInt32 (nf_provider));
1927 else if (conversionType.Equals (typeof (UInt64)))
1928 return (object)(convert_value.ToUInt64 (nf_provider));
1929 else if (conversionType.Equals (typeof (Object)))
1930 return (object)(value);
1940 // This is needed, because enumerations from assemblies
1941 // do not report their underlyingtype, but they report
1944 public static Type EnumToUnderlying (Type t)
1946 if (t == TypeManager.enum_type)
1949 t = t.UnderlyingSystemType;
1950 if (!TypeManager.IsEnumType (t))
1953 if (t is TypeBuilder) {
1954 // slow path needed to compile corlib
1955 if (t == TypeManager.bool_type ||
1956 t == TypeManager.byte_type ||
1957 t == TypeManager.sbyte_type ||
1958 t == TypeManager.char_type ||
1959 t == TypeManager.short_type ||
1960 t == TypeManager.ushort_type ||
1961 t == TypeManager.int32_type ||
1962 t == TypeManager.uint32_type ||
1963 t == TypeManager.int64_type ||
1964 t == TypeManager.uint64_type)
1966 throw new Exception ("Unhandled typecode in enum " + " from " + t.AssemblyQualifiedName);
1968 TypeCode tc = Type.GetTypeCode (t);
1971 case TypeCode.Boolean:
1972 return TypeManager.bool_type;
1974 return TypeManager.byte_type;
1975 case TypeCode.SByte:
1976 return TypeManager.sbyte_type;
1978 return TypeManager.char_type;
1979 case TypeCode.Int16:
1980 return TypeManager.short_type;
1981 case TypeCode.UInt16:
1982 return TypeManager.ushort_type;
1983 case TypeCode.Int32:
1984 return TypeManager.int32_type;
1985 case TypeCode.UInt32:
1986 return TypeManager.uint32_type;
1987 case TypeCode.Int64:
1988 return TypeManager.int64_type;
1989 case TypeCode.UInt64:
1990 return TypeManager.uint64_type;
1992 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
1996 // When compiling corlib and called with one of the core types, return
1997 // the corresponding typebuilder for that type.
1999 public static Type TypeToCoreType (Type t)
2001 if (RootContext.StdLib || (t is TypeBuilder))
2004 TypeCode tc = Type.GetTypeCode (t);
2007 case TypeCode.Boolean:
2008 return TypeManager.bool_type;
2010 return TypeManager.byte_type;
2011 case TypeCode.SByte:
2012 return TypeManager.sbyte_type;
2014 return TypeManager.char_type;
2015 case TypeCode.Int16:
2016 return TypeManager.short_type;
2017 case TypeCode.UInt16:
2018 return TypeManager.ushort_type;
2019 case TypeCode.Int32:
2020 return TypeManager.int32_type;
2021 case TypeCode.UInt32:
2022 return TypeManager.uint32_type;
2023 case TypeCode.Int64:
2024 return TypeManager.int64_type;
2025 case TypeCode.UInt64:
2026 return TypeManager.uint64_type;
2027 case TypeCode.Single:
2028 return TypeManager.float_type;
2029 case TypeCode.Double:
2030 return TypeManager.double_type;
2031 case TypeCode.String:
2032 return TypeManager.string_type;
2034 if (t == typeof (void))
2035 return TypeManager.void_type;
2036 if (t == typeof (object))
2037 return TypeManager.object_type;
2038 if (t == typeof (System.Type))
2039 return TypeManager.type_type;
2045 /// Utility function that can be used to probe whether a type
2046 /// is managed or not.
2048 public static bool VerifyUnManaged (Type t, Location loc)
2050 if (t.IsValueType || t.IsPointer){
2052 // FIXME: this is more complex, we actually need to
2053 // make sure that the type does not contain any
2059 if (!RootContext.StdLib && (t == TypeManager.decimal_type))
2060 // We need this explicit check here to make it work when
2061 // compiling corlib.
2066 "Cannot take the address or size of a variable of a managed type ('" +
2067 CSharpName (t) + "')");
2072 /// Returns the name of the indexer in a given type.
2075 /// The default is not always `Item'. The user can change this behaviour by
2076 /// using the DefaultMemberAttribute in the class.
2078 /// For example, the String class indexer is named `Chars' not `Item'
2080 public static string IndexerPropertyName (Type t)
2082 if (t is TypeBuilder) {
2083 if (t.IsInterface) {
2084 Interface i = LookupInterface (t);
2086 if ((i == null) || (i.IndexerName == null))
2089 return i.IndexerName;
2091 TypeContainer tc = LookupTypeContainer (t);
2093 if ((tc == null) || (tc.IndexerName == null))
2096 return tc.IndexerName;
2100 System.Attribute attr = System.Attribute.GetCustomAttribute (
2101 t, TypeManager.default_member_type);
2103 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
2104 return dma.MemberName;
2110 public static void MakePinned (LocalBuilder builder)
2113 // FIXME: Flag the "LocalBuilder" type as being
2114 // pinned. Figure out API.
2120 // Returns whether the array of memberinfos contains the given method
2122 public static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
2124 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
2126 foreach (MethodBase method in array) {
2127 if (method.Name != new_method.Name)
2130 if (method is MethodInfo && new_method is MethodInfo)
2131 if (((MethodInfo) method).ReturnType != ((MethodInfo) new_method).ReturnType)
2135 Type [] old_args = TypeManager.GetArgumentTypes (method);
2136 int old_count = old_args.Length;
2139 if (new_args.Length != old_count)
2142 for (i = 0; i < old_count; i++){
2143 if (old_args [i] != new_args [i])
2156 // We copy methods from `new_members' into `target_list' if the signature
2157 // for the method from in the new list does not exist in the target_list
2159 // The name is assumed to be the same.
2161 public static ArrayList CopyNewMethods (ArrayList target_list, MemberList new_members)
2163 if (target_list == null){
2164 target_list = new ArrayList ();
2166 foreach (MemberInfo mi in new_members){
2167 if (mi is MethodBase)
2168 target_list.Add (mi);
2173 MemberInfo [] target_array = new MemberInfo [target_list.Count];
2174 target_list.CopyTo (target_array, 0);
2176 foreach (MemberInfo mi in new_members){
2177 MethodBase new_method = (MethodBase) mi;
2179 if (!ArrayContainsMethod (target_array, new_method))
2180 target_list.Add (new_method);
2186 public enum MethodFlags {
2188 IsObsoleteError = 1 << 1,
2189 ShouldIgnore = 1 << 2
2193 // Returns the TypeManager.MethodFlags for this method.
2194 // This emits an error 619 / warning 618 if the method is obsolete.
2195 // In the former case, TypeManager.MethodFlags.IsObsoleteError is returned.
2197 static public MethodFlags GetMethodFlags (MethodBase mb, Location loc)
2199 MethodFlags flags = 0;
2201 if (mb.DeclaringType is TypeBuilder){
2202 MethodData method = (MethodData) builder_to_method [mb];
2203 if (method == null) {
2204 // FIXME: implement Obsolete attribute on Property,
2205 // Indexer and Event.
2209 return method.GetMethodFlags (loc);
2213 if (mb.IsInflatedGeneric) {
2214 MethodBase generic = mb.GetGenericMethodDefinition ();
2216 return GetMethodFlags (generic, loc);
2220 object [] attrs = mb.GetCustomAttributes (true);
2221 foreach (object ta in attrs){
2222 if (!(ta is System.Attribute)){
2223 Console.WriteLine ("Unknown type in GetMethodFlags: " + ta);
2226 System.Attribute a = (System.Attribute) ta;
2227 if (a.TypeId == TypeManager.obsolete_attribute_type){
2228 ObsoleteAttribute oa = (ObsoleteAttribute) a;
2230 string method_desc = TypeManager.CSharpSignature (mb);
2233 Report.Error (619, loc, "Method `" + method_desc +
2234 "' is obsolete: `" + oa.Message + "'");
2235 return MethodFlags.IsObsoleteError;
2237 Report.Warning (618, loc, "Method `" + method_desc +
2238 "' is obsolete: `" + oa.Message + "'");
2240 flags |= MethodFlags.IsObsolete;
2246 // Skip over conditional code.
2248 if (a.TypeId == TypeManager.conditional_attribute_type){
2249 ConditionalAttribute ca = (ConditionalAttribute) a;
2251 if (RootContext.AllDefines [ca.ConditionString] == null)
2252 flags |= MethodFlags.ShouldIgnore;
2259 #region MemberLookup implementation
2262 // Name of the member
2264 static string closure_name;
2267 // Whether we allow private members in the result (since FindMembers
2268 // uses NonPublic for both protected and private), we need to distinguish.
2270 static bool closure_private_ok;
2273 // Who is invoking us and which type is being queried currently.
2275 static Type closure_invocation_type;
2276 static Type closure_queried_type;
2277 static Type closure_qualifier_type;
2280 // The assembly that defines the type is that is calling us
2282 static Assembly closure_invocation_assembly;
2284 static internal bool FilterNone (MemberInfo m, object filter_criteria)
2290 // This filter filters by name + whether it is ok to include private
2291 // members in the search
2293 static internal bool FilterWithClosure (MemberInfo m, object filter_criteria)
2296 // Hack: we know that the filter criteria will always be in the `closure'
2300 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2303 if (((closure_qualifier_type == null) || (closure_qualifier_type == closure_invocation_type)) &&
2304 (m.DeclaringType == closure_invocation_type))
2308 // Ugly: we need to find out the type of `m', and depending
2309 // on this, tell whether we accept or not
2311 if (m is MethodBase){
2312 MethodBase mb = (MethodBase) m;
2313 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2315 if (ma == MethodAttributes.Private)
2316 return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
2317 IsNestedChildOf (closure_invocation_type, m.DeclaringType);
2320 // FamAndAssem requires that we not only derivate, but we are on the
2323 if (ma == MethodAttributes.FamANDAssem){
2324 if (closure_invocation_assembly != mb.DeclaringType.Assembly)
2328 // Assembly and FamORAssem succeed if we're in the same assembly.
2329 if ((ma == MethodAttributes.Assembly) || (ma == MethodAttributes.FamORAssem)){
2330 if (closure_invocation_assembly == mb.DeclaringType.Assembly)
2334 // We already know that we aren't in the same assembly.
2335 if (ma == MethodAttributes.Assembly)
2338 // Family and FamANDAssem require that we derive.
2339 if ((ma == MethodAttributes.Family) || (ma == MethodAttributes.FamANDAssem)){
2340 if (closure_invocation_type == null)
2343 if (!IsSubclassOrNestedChildOf (closure_invocation_type, mb.DeclaringType))
2346 // Although a derived class can access protected members of its base class
2347 // it cannot do so through an instance of the base class (CS1540).
2348 if (!mb.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
2349 (closure_qualifier_type != null) &&
2350 closure_invocation_type.IsSubclassOf (closure_qualifier_type))
2360 if (m is FieldInfo){
2361 FieldInfo fi = (FieldInfo) m;
2362 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2364 if (fa == FieldAttributes.Private)
2365 return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
2366 IsNestedChildOf (closure_invocation_type, m.DeclaringType);
2369 // FamAndAssem requires that we not only derivate, but we are on the
2372 if (fa == FieldAttributes.FamANDAssem){
2373 if (closure_invocation_assembly != fi.DeclaringType.Assembly)
2377 // Assembly and FamORAssem succeed if we're in the same assembly.
2378 if ((fa == FieldAttributes.Assembly) || (fa == FieldAttributes.FamORAssem)){
2379 if (closure_invocation_assembly == fi.DeclaringType.Assembly)
2383 // We already know that we aren't in the same assembly.
2384 if (fa == FieldAttributes.Assembly)
2387 // Family and FamANDAssem require that we derive.
2388 if ((fa == FieldAttributes.Family) || (fa == FieldAttributes.FamANDAssem)){
2389 if (closure_invocation_type == null)
2392 if (!IsSubclassOrNestedChildOf (closure_invocation_type, fi.DeclaringType))
2395 // Although a derived class can access protected members of its base class
2396 // it cannot do so through an instance of the base class (CS1540).
2397 if (!fi.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
2398 (closure_qualifier_type != null) &&
2399 closure_invocation_type.IsSubclassOf (closure_qualifier_type))
2410 // EventInfos and PropertyInfos, return true because they lack permission
2411 // informaiton, so we need to check later on the methods.
2416 static MemberFilter FilterWithClosure_delegate = new MemberFilter (FilterWithClosure);
2417 static MemberFilter FilterNone_delegate = new MemberFilter (FilterNone);
2420 // Looks up a member called `name' in the `queried_type'. This lookup
2421 // is done by code that is contained in the definition for `invocation_type'
2422 // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
2424 // `invocation_type' is used to check whether we're allowed to access the requested
2425 // member wrt its protection level.
2427 // When called from MemberAccess, `qualifier_type' is the type which is used to access
2428 // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
2429 // is B and qualifier_type is A). This is used to do the CS1540 check.
2431 // When resolving a SimpleName, `qualifier_type' is null.
2433 // The `qualifier_type' is used for the CS1540 check; it's normally either null or
2434 // the same than `queried_type' - except when we're being called from BaseAccess;
2435 // in this case, `invocation_type' is the current type and `queried_type' the base
2436 // type, so this'd normally trigger a CS1540.
2438 // The binding flags are `bf' and the kind of members being looked up are `mt'
2440 // The return value always includes private members which code in `invocation_type'
2441 // is allowed to access (using the specified `qualifier_type' if given); only use
2442 // BindingFlags.NonPublic to bypass the permission check.
2444 // Returns an array of a single element for everything but Methods/Constructors
2445 // that might return multiple matches.
2447 public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_type,
2448 Type queried_type, MemberTypes mt,
2449 BindingFlags original_bf, string name)
2451 Timer.StartTimer (TimerType.MemberLookup);
2453 MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_type,
2454 queried_type, mt, original_bf, name);
2456 Timer.StopTimer (TimerType.MemberLookup);
2461 static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_type,
2462 Type queried_type, MemberTypes mt,
2463 BindingFlags original_bf, string name)
2465 BindingFlags bf = original_bf;
2467 ArrayList method_list = null;
2468 Type current_type = queried_type;
2469 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2470 bool skip_iface_check = true, used_cache = false;
2471 bool always_ok_flag = false;
2473 closure_name = name;
2474 closure_invocation_type = invocation_type;
2475 closure_invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2476 closure_qualifier_type = qualifier_type;
2479 // If we are a nested class, we always have access to our container
2482 if (invocation_type != null){
2483 string invocation_name = invocation_type.FullName;
2484 if (invocation_name.IndexOf ('+') != -1){
2485 string container = queried_type.FullName + "+";
2486 int container_length = container.Length;
2488 if (invocation_name.Length > container_length){
2489 string shared = invocation_name.Substring (0, container_length);
2491 if (shared == container)
2492 always_ok_flag = true;
2501 // `NonPublic' is lame, because it includes both protected and
2502 // private methods, so we need to control this behavior by
2503 // explicitly tracking if a private method is ok or not.
2505 // The possible cases are:
2506 // public, private and protected (internal does not come into the
2509 if ((invocation_type != null) &&
2510 ((invocation_type == current_type) ||
2511 IsNestedChildOf (invocation_type, current_type)) ||
2513 bf = original_bf | BindingFlags.NonPublic;
2517 closure_private_ok = (original_bf & BindingFlags.NonPublic) != 0;
2518 closure_queried_type = current_type;
2520 Timer.StopTimer (TimerType.MemberLookup);
2522 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2524 Timer.StartTimer (TimerType.MemberLookup);
2527 // When queried for an interface type, the cache will automatically check all
2528 // inherited members, so we don't need to do this here. However, this only
2529 // works if we already used the cache in the first iteration of this loop.
2531 // If we used the cache in any further iteration, we can still terminate the
2532 // loop since the cache always looks in all parent classes.
2538 skip_iface_check = false;
2540 if (current_type == TypeManager.object_type)
2543 current_type = current_type.BaseType;
2546 // This happens with interfaces, they have a null
2547 // basetype. Look members up in the Object class.
2549 if (current_type == null)
2550 current_type = TypeManager.object_type;
2553 if (list.Count == 0)
2557 // Events and types are returned by both `static' and `instance'
2558 // searches, which means that our above FindMembers will
2559 // return two copies of the same.
2561 if (list.Count == 1 && !(list [0] is MethodBase)){
2562 return (MemberInfo []) list;
2566 // Multiple properties: we query those just to find out the indexer
2569 if (list [0] is PropertyInfo)
2570 return (MemberInfo []) list;
2573 // We found an event: the cache lookup returns both the event and
2574 // its private field.
2576 if (list [0] is EventInfo) {
2577 if ((list.Count == 2) && (list [1] is FieldInfo))
2578 return new MemberInfo [] { list [0] };
2585 // We found methods, turn the search into "method scan"
2589 method_list = CopyNewMethods (method_list, list);
2590 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2591 } while (searching);
2593 if (method_list != null && method_list.Count > 0) {
2594 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2597 // This happens if we already used the cache in the first iteration, in this case
2598 // the cache already looked in all interfaces.
2600 if (skip_iface_check)
2604 // Interfaces do not list members they inherit, so we have to
2607 if (!queried_type.IsInterface)
2610 if (queried_type.IsArray)
2611 queried_type = TypeManager.array_type;
2613 TypeExpr [] ifaces = GetInterfaces (queried_type);
2617 foreach (TypeExpr itype in ifaces){
2620 x = MemberLookup (null, null, itype.Type, mt, bf, name);
2629 // This is used to extract properties and event declarations from a type
2631 static MemberInfo [] SpecialContainerLookup (Type t, bool is_static)
2633 BindingFlags bf = BindingFlags.DeclaredOnly | (is_static ? BindingFlags.Static : BindingFlags.Instance);
2635 bf |= BindingFlags.Public | BindingFlags.NonPublic;
2637 if (t is TypeBuilder) {
2638 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
2640 return (MemberInfo []) decl.FindMembers (
2641 MemberTypes.Property | MemberTypes.Event,
2642 bf, FilterNone_delegate, null);
2644 return t.FindMembers (MemberTypes.Property | MemberTypes.Event,
2645 bf, FilterNone_delegate, null);
2650 public static bool IsSpecialMethod (MethodBase mb)
2652 Type t = mb.DeclaringType;
2654 MemberInfo [] matches = TypeManager.SpecialContainerLookup (t, mb.IsStatic);
2655 if (matches == null)
2658 foreach (MemberInfo mi in matches){
2659 if (mi is PropertyBuilder){
2660 Pair p = (Pair) properties [mi];
2662 if (p.First == mb || p.Second == mb)
2664 } else if (mi is PropertyInfo){
2665 MethodInfo [] methods = ((PropertyInfo) mi).GetAccessors (true);
2667 foreach (MethodInfo m in methods){
2671 } else if (mi is MyEventBuilder){
2672 Pair p = (Pair) events [mi];
2674 if (p.First == mb || p.Second == mb)
2676 } else if (mi is EventInfo){
2677 EventInfo ei = ((EventInfo) mi);
2679 if (ei.GetAddMethod (true) == mb)
2682 if (ei.GetRemoveMethod (true) == mb)
2685 if (ei.GetRaiseMethod (true) == mb)
2691 // Now check if it is an operator method
2695 if (s.StartsWith ("op_")){
2696 foreach (string name in Unary.oper_names){
2701 foreach (string name in Binary.oper_names){
2715 /// There is exactly one instance of this class per type.
2717 public sealed class TypeHandle : IMemberContainer {
2718 public readonly TypeHandle BaseType;
2720 readonly int id = ++next_id;
2721 static int next_id = 0;
2724 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2725 /// a TypeHandle yet, a new instance of it is created. This static method
2726 /// ensures that we'll only have one TypeHandle instance per type.
2728 public static TypeHandle GetTypeHandle (Type t)
2730 TypeHandle handle = (TypeHandle) type_hash [t];
2734 handle = new TypeHandle (t);
2735 type_hash.Add (t, handle);
2740 /// Returns the TypeHandle for TypeManager.object_type.
2742 public static IMemberContainer ObjectType {
2744 if (object_type != null)
2747 object_type = GetTypeHandle (TypeManager.object_type);
2754 /// Returns the TypeHandle for TypeManager.array_type.
2756 public static IMemberContainer ArrayType {
2758 if (array_type != null)
2761 array_type = GetTypeHandle (TypeManager.array_type);
2767 private static PtrHashtable type_hash = new PtrHashtable ();
2769 private static TypeHandle object_type = null;
2770 private static TypeHandle array_type = null;
2773 private bool is_interface;
2774 private MemberCache member_cache;
2776 private TypeHandle (Type type)
2779 if (type.BaseType != null)
2780 BaseType = GetTypeHandle (type.BaseType);
2781 this.is_interface = type.IsInterface;
2782 this.member_cache = new MemberCache (this);
2785 // IMemberContainer methods
2787 public string Name {
2789 return type.FullName;
2799 public IMemberContainer Parent {
2805 public bool IsInterface {
2807 return is_interface;
2811 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
2813 MemberInfo [] members;
2814 if (mt == MemberTypes.Event)
2815 members = type.GetEvents (bf | BindingFlags.DeclaredOnly);
2817 members = type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
2819 Array.Reverse (members);
2821 return new MemberList (members);
2824 // IMemberFinder methods
2826 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
2827 MemberFilter filter, object criteria)
2829 return member_cache.FindMembers (mt, bf, name, filter, criteria);
2832 public MemberCache MemberCache {
2834 return member_cache;
2838 public override string ToString ()
2840 if (BaseType != null)
2841 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
2843 return "TypeHandle (" + id + "," + Name + ")";