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 iconvertible_type;
67 static public Type default_member_type;
68 static public Type iasyncresult_type;
69 static public Type asynccallback_type;
70 static public Type intptr_type;
71 static public Type monitor_type;
72 static public Type runtime_field_handle_type;
73 static public Type runtime_argument_handle_type;
74 static public Type attribute_type;
75 static public Type attribute_usage_type;
76 static public Type dllimport_type;
77 static public Type unverifiable_code_type;
78 static public Type methodimpl_attr_type;
79 static public Type marshal_as_attr_type;
80 static public Type param_array_type;
81 static public Type guid_attr_type;
82 static public Type void_ptr_type;
83 static public Type indexer_name_type;
84 static public Type exception_type;
85 static public Type invalid_operation_exception_type;
86 static public Type not_supported_exception_type;
87 static public Type obsolete_attribute_type;
88 static public Type conditional_attribute_type;
89 static public Type in_attribute_type;
90 static public Type anonymous_method_type;
91 static public Type cls_compliant_attribute_type;
92 static public Type typed_reference_type;
93 static public Type arg_iterator_type;
94 static public Type mbr_type;
95 static public Type struct_layout_attribute_type;
96 static public Type field_offset_attribute_type;
97 static public Type security_attr_type;
100 // An empty array of types
102 static public Type [] NoTypes;
103 static public TypeExpr [] NoTypeExprs;
107 // Expressions representing the internal types. Used during declaration
110 static public TypeExpr system_object_expr, system_string_expr;
111 static public TypeExpr system_boolean_expr, system_decimal_expr;
112 static public TypeExpr system_single_expr, system_double_expr;
113 static public TypeExpr system_sbyte_expr, system_byte_expr;
114 static public TypeExpr system_int16_expr, system_uint16_expr;
115 static public TypeExpr system_int32_expr, system_uint32_expr;
116 static public TypeExpr system_int64_expr, system_uint64_expr;
117 static public TypeExpr system_char_expr, system_void_expr;
118 static public TypeExpr system_asynccallback_expr;
119 static public TypeExpr system_iasyncresult_expr;
120 static public TypeExpr system_valuetype_expr;
121 static public TypeExpr system_intptr_expr;
124 // This is only used when compiling corlib
126 static public Type system_int32_type;
127 static public Type system_array_type;
128 static public Type system_type_type;
129 static public Type system_assemblybuilder_type;
130 static public MethodInfo system_int_array_get_length;
131 static public MethodInfo system_int_array_get_rank;
132 static public MethodInfo system_object_array_clone;
133 static public MethodInfo system_int_array_get_length_int;
134 static public MethodInfo system_int_array_get_lower_bound_int;
135 static public MethodInfo system_int_array_get_upper_bound_int;
136 static public MethodInfo system_void_array_copyto_array_int;
140 // Internal, not really used outside
142 static Type runtime_helpers_type;
145 // These methods are called by code generated by the compiler
147 static public MethodInfo string_concat_string_string;
148 static public MethodInfo string_concat_string_string_string;
149 static public MethodInfo string_concat_string_string_string_string;
150 static public MethodInfo string_concat_string_dot_dot_dot;
151 static public MethodInfo string_concat_object_object;
152 static public MethodInfo string_concat_object_object_object;
153 static public MethodInfo string_concat_object_dot_dot_dot;
154 static public MethodInfo string_isinterneted_string;
155 static public MethodInfo system_type_get_type_from_handle;
156 static public MethodInfo object_getcurrent_void;
157 static public MethodInfo bool_movenext_void;
158 static public MethodInfo ienumerable_getenumerator_void;
159 static public MethodInfo void_reset_void;
160 static public MethodInfo void_dispose_void;
161 static public MethodInfo void_monitor_enter_object;
162 static public MethodInfo void_monitor_exit_object;
163 static public MethodInfo void_initializearray_array_fieldhandle;
164 static public MethodInfo int_getlength_int;
165 static public MethodInfo delegate_combine_delegate_delegate;
166 static public MethodInfo delegate_remove_delegate_delegate;
167 static public MethodInfo int_get_offset_to_string_data;
168 static public MethodInfo int_array_get_length;
169 static public MethodInfo int_array_get_rank;
170 static public MethodInfo object_array_clone;
171 static public MethodInfo int_array_get_length_int;
172 static public MethodInfo int_array_get_lower_bound_int;
173 static public MethodInfo int_array_get_upper_bound_int;
174 static public MethodInfo void_array_copyto_array_int;
177 // The attribute constructors.
179 static public ConstructorInfo object_ctor;
180 static public ConstructorInfo cons_param_array_attribute;
181 static public ConstructorInfo void_decimal_ctor_five_args;
182 static public ConstructorInfo unverifiable_code_ctor;
183 static public ConstructorInfo invalid_operation_ctor;
184 static public ConstructorInfo default_member_ctor;
187 // Holds the Array of Assemblies that have been loaded
188 // (either because it is the default or the user used the
189 // -r command line option)
191 static Assembly [] assemblies;
194 // Keeps a list of modules. We used this to do lookups
195 // on the module using GetType -- needed for arrays
197 static Module [] modules;
200 // This is the type_cache from the assemblies to avoid
201 // hitting System.Reflection on every lookup.
203 static Hashtable types;
206 // This is used to hotld the corresponding TypeContainer objects
207 // since we need this in FindMembers
209 static Hashtable typecontainers;
212 // Keeps track of those types that are defined by the
215 static ArrayList user_types;
217 static PtrHashtable builder_to_declspace;
219 static PtrHashtable builder_to_member_cache;
222 // Tracks the interfaces implemented by typebuilders. We only
223 // enter those who do implement or or more interfaces
225 static PtrHashtable builder_to_ifaces;
228 // Maps MethodBase.RuntimeTypeHandle to a Type array that contains
229 // the arguments to the method
231 static Hashtable method_arguments;
234 // Maps PropertyBuilder to a Type array that contains
235 // the arguments to the indexer
237 static Hashtable indexer_arguments;
240 // Maybe `method_arguments' should be replaced and only
241 // method_internal_params should be kept?
243 static Hashtable method_internal_params;
246 // Keeps track of methods
249 static Hashtable builder_to_method;
252 // Contains all public types from referenced assemblies.
253 // This member is used only if CLS Compliance verification is required.
255 public static Hashtable all_imported_types;
262 public static void CleanUp ()
264 // Lets get everything clean so that we can collect before generating code
268 typecontainers = null;
270 builder_to_declspace = null;
271 builder_to_member_cache = null;
272 builder_to_ifaces = null;
273 method_arguments = null;
274 indexer_arguments = null;
275 method_internal_params = null;
276 builder_to_method = null;
280 negative_hits = null;
281 builder_to_constant = null;
282 fieldbuilders_to_fields = null;
284 priv_fields_events = null;
287 TypeHandle.CleanUp ();
291 /// A filter for Findmembers that uses the Signature object to
294 static bool SignatureFilter (MemberInfo mi, object criteria)
296 Signature sig = (Signature) criteria;
298 if (!(mi is MethodBase))
301 if (mi.Name != sig.name)
304 int count = sig.args.Length;
306 if (mi is MethodBuilder || mi is ConstructorBuilder){
307 Type [] candidate_args = GetArgumentTypes ((MethodBase) mi);
309 if (candidate_args.Length != count)
312 for (int i = 0; i < count; i++)
313 if (candidate_args [i] != sig.args [i])
318 ParameterInfo [] pars = ((MethodBase) mi).GetParameters ();
320 if (pars.Length != count)
323 for (int i = 0; i < count; i++)
324 if (pars [i].ParameterType != sig.args [i])
330 // A delegate that points to the filter above.
331 static MemberFilter signature_filter;
334 // These are expressions that represent some of the internal data types, used
337 static void InitExpressionTypes ()
339 system_object_expr = new TypeLookupExpression ("System.Object");
340 system_string_expr = new TypeLookupExpression ("System.String");
341 system_boolean_expr = new TypeLookupExpression ("System.Boolean");
342 system_decimal_expr = new TypeLookupExpression ("System.Decimal");
343 system_single_expr = new TypeLookupExpression ("System.Single");
344 system_double_expr = new TypeLookupExpression ("System.Double");
345 system_sbyte_expr = new TypeLookupExpression ("System.SByte");
346 system_byte_expr = new TypeLookupExpression ("System.Byte");
347 system_int16_expr = new TypeLookupExpression ("System.Int16");
348 system_uint16_expr = new TypeLookupExpression ("System.UInt16");
349 system_int32_expr = new TypeLookupExpression ("System.Int32");
350 system_uint32_expr = new TypeLookupExpression ("System.UInt32");
351 system_int64_expr = new TypeLookupExpression ("System.Int64");
352 system_uint64_expr = new TypeLookupExpression ("System.UInt64");
353 system_char_expr = new TypeLookupExpression ("System.Char");
354 system_void_expr = new TypeLookupExpression ("System.Void");
355 system_asynccallback_expr = new TypeLookupExpression ("System.AsyncCallback");
356 system_iasyncresult_expr = new TypeLookupExpression ("System.IAsyncResult");
357 system_valuetype_expr = new TypeLookupExpression ("System.ValueType");
358 system_intptr_expr = new TypeLookupExpression ("System.IntPtr");
361 static TypeManager ()
363 assemblies = new Assembly [0];
365 user_types = new ArrayList ();
367 types = new Hashtable ();
368 typecontainers = new Hashtable ();
370 builder_to_declspace = new PtrHashtable ();
371 builder_to_member_cache = new PtrHashtable ();
372 builder_to_method = new PtrHashtable ();
373 method_arguments = new PtrHashtable ();
374 method_internal_params = new PtrHashtable ();
375 indexer_arguments = new PtrHashtable ();
376 builder_to_ifaces = new PtrHashtable ();
378 NoTypes = new Type [0];
379 NoTypeExprs = new TypeExpr [0];
381 signature_filter = new MemberFilter (SignatureFilter);
382 InitExpressionTypes ();
385 public static void HandleDuplicate (string name, Type t)
387 Type prev = (Type) types [name];
388 TypeContainer tc = builder_to_declspace [prev] as TypeContainer;
392 // This probably never happens, as we catch this before
394 Report.Error (-17, "The type `" + name + "' has already been defined.");
398 tc = builder_to_declspace [t] as TypeContainer;
401 1595, "The type `" + name + "' is defined in an existing assembly;"+
402 " Using the new definition from: " + tc.Location);
405 1595, "The type `" + name + "' is defined in an existing assembly;");
408 Report.Warning (1595, "Previously defined in: " + prev.Assembly.FullName);
414 public static void AddUserType (string name, TypeBuilder t)
419 HandleDuplicate (name, t);
425 // This entry point is used by types that we define under the covers
427 public static void RegisterBuilder (Type tb, Type [] ifaces)
430 builder_to_ifaces [tb] = ifaces;
433 public static void AddUserType (string name, TypeBuilder t, TypeContainer tc)
435 builder_to_declspace.Add (t, tc);
436 typecontainers.Add (name, tc);
437 AddUserType (name, t);
440 public static void AddDelegateType (string name, TypeBuilder t, Delegate del)
445 HandleDuplicate (name, t);
448 builder_to_declspace.Add (t, del);
451 public static void AddEnumType (string name, TypeBuilder t, Enum en)
456 HandleDuplicate (name, t);
458 builder_to_declspace.Add (t, en);
461 public static void AddMethod (MethodBase builder, IMethodData method)
463 builder_to_method.Add (builder, method);
466 public static IMethodData GetMethod (MethodBase builder)
468 return (IMethodData) builder_to_method [builder];
472 /// Returns the DeclSpace whose Type is `t' or null if there is no
473 /// DeclSpace for `t' (ie, the Type comes from a library)
475 public static DeclSpace LookupDeclSpace (Type t)
477 return builder_to_declspace [t] as DeclSpace;
481 /// Returns the TypeContainer whose Type is `t' or null if there is no
482 /// TypeContainer for `t' (ie, the Type comes from a library)
484 public static TypeContainer LookupTypeContainer (Type t)
486 return builder_to_declspace [t] as TypeContainer;
489 public static IMemberContainer LookupMemberContainer (Type t)
491 if (t is TypeBuilder) {
492 IMemberContainer container = builder_to_declspace [t] as IMemberContainer;
493 if (container != null)
497 return TypeHandle.GetTypeHandle (t);
500 public static MemberCache LookupInterfaceCache (IMemberContainer container, Type t)
502 MemberCache cache = builder_to_member_cache [t] as MemberCache;
506 cache = new MemberCache (container, GetInterfaces (t));
507 builder_to_member_cache.Add (t, cache);
511 public static TypeContainer LookupInterface (Type t)
513 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
514 if ((tc == null) || (tc.Kind != Kind.Interface))
520 public static Delegate LookupDelegate (Type t)
522 return builder_to_declspace [t] as Delegate;
525 public static Enum LookupEnum (Type t)
527 return builder_to_declspace [t] as Enum;
530 public static Class LookupClass (Type t)
532 return (Class) builder_to_declspace [t];
536 /// Registers an assembly to load types from.
538 public static void AddAssembly (Assembly a)
540 foreach (Assembly assembly in assemblies) {
545 int top = assemblies.Length;
546 Assembly [] n = new Assembly [top + 1];
548 assemblies.CopyTo (n, 0);
554 public static Assembly [] GetAssemblies ()
560 /// Registers a module builder to lookup types from
562 public static void AddModule (Module mb)
564 int top = modules != null ? modules.Length : 0;
565 Module [] n = new Module [top + 1];
568 modules.CopyTo (n, 0);
573 public static Module[] Modules {
579 static Hashtable references = new Hashtable ();
582 // Gets the reference to T version of the Type (T&)
584 public static Type GetReferenceType (Type t)
586 string tname = t.FullName + "&";
588 Type ret = t.Assembly.GetType (tname);
591 // If the type comes from the assembly we are building
592 // We need the Hashtable, because .NET 1.1 will return different instance types
593 // every time we call ModuleBuilder.GetType.
596 if (references [t] == null)
597 references [t] = CodeGen.Module.Builder.GetType (tname);
598 ret = (Type) references [t];
604 static Hashtable pointers = new Hashtable ();
607 // Gets the pointer to T version of the Type (T*)
609 public static Type GetPointerType (Type t)
611 string tname = t.FullName + "*";
613 Type ret = t.Assembly.GetType (tname);
616 // If the type comes from the assembly we are building
617 // We need the Hashtable, because .NET 1.1 will return different instance types
618 // every time we call ModuleBuilder.GetType.
621 if (pointers [t] == null)
622 pointers [t] = CodeGen.Module.Builder.GetType (tname);
624 ret = (Type) pointers [t];
631 // Low-level lookup, cache-less
633 static Type LookupTypeReflection (string name)
637 foreach (Assembly a in assemblies){
638 t = a.GetType (name);
643 TypeAttributes ta = t.Attributes & TypeAttributes.VisibilityMask;
644 if (ta == TypeAttributes.NotPublic ||
645 ta == TypeAttributes.NestedPrivate ||
646 ta == TypeAttributes.NestedAssembly ||
647 ta == TypeAttributes.NestedFamANDAssem){
650 // In .NET pointers turn out to be private, even if their
651 // element type is not
654 t = t.GetElementType ();
664 foreach (Module mb in modules) {
665 t = mb.GetType (name);
673 static Hashtable negative_hits = new Hashtable ();
676 // This function is used when you want to avoid the lookups, and want to go
677 // directly to the source. This will use the cache.
679 // Notice that bypassing the cache is bad, because on Microsoft.NET runtime
680 // GetType ("DynamicType[]") != GetType ("DynamicType[]"), and there is no
681 // way to test things other than doing a fullname compare
683 public static Type LookupTypeDirect (string name)
685 Type t = (Type) types [name];
689 if (negative_hits.Contains (name))
692 t = LookupTypeReflection (name);
695 negative_hits [name] = null;
702 static readonly char [] dot_array = { '.' };
705 /// Returns the Type associated with @name, takes care of the fact that
706 /// reflection expects nested types to be separated from the main type
707 /// with a "+" instead of a "."
709 public static Type LookupType (string name)
714 // First lookup in user defined and cached values
717 t = (Type) types [name];
721 // Two thirds of the failures are caught here.
722 if (negative_hits.Contains (name))
725 // Sadly, split takes a param array, so this ends up allocating *EVERY TIME*
726 string [] elements = name.Split (dot_array);
727 int count = elements.Length;
729 for (int n = 1; n <= count; n++){
730 string top_level_type = String.Join (".", elements, 0, n);
732 // One third of the failures are caught here.
733 if (negative_hits.Contains (top_level_type))
736 t = (Type) types [top_level_type];
738 t = LookupTypeReflection (top_level_type);
740 negative_hits [top_level_type] = null;
751 // We know that System.Object does not have children, and since its the parent of
752 // all the objects, it always gets probbed for inner classes.
754 if (top_level_type == "System.Object")
757 string newt = top_level_type + "+" + String.Join ("+", elements, n, count - n);
758 //Console.WriteLine ("Looking up: " + newt + " " + name);
759 t = LookupTypeReflection (newt);
761 negative_hits [name] = null;
766 negative_hits [name] = null;
771 /// Computes the namespaces that we import from the assemblies we reference.
773 public static void ComputeNamespaces ()
775 MethodInfo assembly_get_namespaces = typeof (Assembly).GetMethod ("GetNamespaces", BindingFlags.Instance|BindingFlags.NonPublic);
778 // First add the assembly namespaces
780 if (assembly_get_namespaces != null){
781 int count = assemblies.Length;
783 for (int i = 0; i < count; i++){
784 Assembly a = assemblies [i];
785 string [] namespaces = (string []) assembly_get_namespaces.Invoke (a, null);
786 foreach (string ns in namespaces){
789 Namespace.LookupNamespace (ns, true);
793 Hashtable cache = new Hashtable ();
794 cache.Add ("", null);
795 foreach (Assembly a in assemblies) {
796 foreach (Type t in a.GetExportedTypes ()) {
797 string ns = t.Namespace;
798 if (ns == null || cache.Contains (ns))
801 Namespace.LookupNamespace (ns, true);
802 cache.Add (ns, null);
809 /// Fills static table with exported types from all referenced assemblies.
810 /// This information is required for CLS Compliance tests.
812 public static void LoadAllImportedTypes ()
814 all_imported_types = new Hashtable ();
815 foreach (Assembly a in assemblies) {
816 foreach (Type t in a.GetExportedTypes ()) {
817 all_imported_types [t.FullName] = t;
822 public static bool NamespaceClash (string name, Location loc)
824 if (Namespace.LookupNamespace (name, false) == null)
827 Report.Error (519, loc, String.Format ("`{0}' clashes with a predefined namespace", name));
832 /// Returns the C# name of a type if possible, or the full type name otherwise
834 static public string CSharpName (Type t)
836 return Regex.Replace (t.FullName,
838 @"(Int32|UInt32|Int16|UInt16|Int64|UInt64|" +
839 @"Single|Double|Char|Decimal|Byte|SByte|Object|" +
840 @"Boolean|String|Void|Null)" +
842 new MatchEvaluator (CSharpNameMatch));
845 static String CSharpNameMatch (Match match)
847 string s = match.Groups [1].Captures [0].Value;
849 Replace ("int32", "int").
850 Replace ("uint32", "uint").
851 Replace ("int16", "short").
852 Replace ("uint16", "ushort").
853 Replace ("int64", "long").
854 Replace ("uint64", "ulong").
855 Replace ("single", "float").
856 Replace ("boolean", "bool")
857 + match.Groups [2].Captures [0].Value;
861 /// Returns the signature of the method with full namespace classification
863 static public string GetFullNameSignature (MemberInfo mi)
865 return mi.DeclaringType.FullName.Replace ('+', '.') + '.' + mi.Name;
868 static public string GetFullNameSignature (MethodBase mb)
870 string name = mb.Name;
872 name = mb.DeclaringType.Name;
874 if (mb.IsSpecialName) {
875 if (name.StartsWith ("get_") || name.StartsWith ("set_")) {
876 name = name.Remove (0, 4);
883 return mb.DeclaringType.FullName.Replace ('+', '.') + '.' + name;
887 /// Returns the signature of the property and indexer
889 static public string CSharpSignature (PropertyBuilder pb, bool is_indexer)
892 return GetFullNameSignature (pb);
895 MethodBase mb = pb.GetSetMethod (true) != null ? pb.GetSetMethod (true) : pb.GetGetMethod (true);
896 string signature = GetFullNameSignature (mb);
897 string arg = TypeManager.LookupParametersByBuilder (mb).ParameterDesc (0);
898 return String.Format ("{0}.this[{1}]", signature.Substring (0, signature.LastIndexOf ('.')), arg);
902 /// Returns the signature of the method
904 static public string CSharpSignature (MethodBase mb)
906 StringBuilder sig = new StringBuilder ("(");
909 // FIXME: We should really have a single function to do
910 // everything instead of the following 5 line pattern
912 ParameterData iparams = LookupParametersByBuilder (mb);
915 iparams = new ReflectionParameters (mb);
918 if (mb.IsSpecialName && iparams.Count == 0 && !mb.IsConstructor)
919 return GetFullNameSignature (mb);
921 for (int i = 0; i < iparams.Count; i++) {
925 sig.Append (iparams.ParameterDesc (i));
930 if (mb.IsSpecialName && iparams.Count == 1 && !mb.IsConstructor) {
931 sig.Replace ('(', '[');
932 sig.Replace (')', ']');
935 return GetFullNameSignature (mb) + sig.ToString ();
939 /// Looks up a type, and aborts if it is not found. This is used
940 /// by types required by the compiler
942 static Type CoreLookupType (string name)
944 Type t = LookupTypeDirect (name);
947 Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
948 Environment.Exit (1);
955 /// Returns the MethodInfo for a method named `name' defined
956 /// in type `t' which takes arguments of types `args'
958 static MethodInfo GetMethod (Type t, string name, Type [] args, bool is_private, bool report_errors)
962 BindingFlags flags = instance_and_static | BindingFlags.Public;
968 flags |= BindingFlags.NonPublic;
970 list = FindMembers (t, MemberTypes.Method, flags, signature_filter, sig);
971 if (list.Count == 0) {
973 Report.Error (-19, "Can not find the core function `" + name + "'");
977 MethodInfo mi = list [0] as MethodInfo;
980 Report.Error (-19, "Can not find the core function `" + name + "'");
987 static MethodInfo GetMethod (Type t, string name, Type [] args, bool report_errors)
989 return GetMethod (t, name, args, false, report_errors);
992 static MethodInfo GetMethod (Type t, string name, Type [] args)
994 return GetMethod (t, name, args, true);
999 /// Returns the ConstructorInfo for "args"
1001 static ConstructorInfo GetConstructor (Type t, Type [] args)
1009 list = FindMembers (t, MemberTypes.Constructor,
1010 instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly,
1011 signature_filter, sig);
1012 if (list.Count == 0){
1013 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
1017 ConstructorInfo ci = list [0] as ConstructorInfo;
1019 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
1026 public static void InitEnumUnderlyingTypes ()
1029 int32_type = CoreLookupType ("System.Int32");
1030 int64_type = CoreLookupType ("System.Int64");
1031 uint32_type = CoreLookupType ("System.UInt32");
1032 uint64_type = CoreLookupType ("System.UInt64");
1033 byte_type = CoreLookupType ("System.Byte");
1034 sbyte_type = CoreLookupType ("System.SByte");
1035 short_type = CoreLookupType ("System.Int16");
1036 ushort_type = CoreLookupType ("System.UInt16");
1040 /// The types have to be initialized after the initial
1041 /// population of the type has happened (for example, to
1042 /// bootstrap the corlib.dll
1044 public static void InitCoreTypes ()
1046 object_type = CoreLookupType ("System.Object");
1047 value_type = CoreLookupType ("System.ValueType");
1049 InitEnumUnderlyingTypes ();
1051 char_type = CoreLookupType ("System.Char");
1052 string_type = CoreLookupType ("System.String");
1053 float_type = CoreLookupType ("System.Single");
1054 double_type = CoreLookupType ("System.Double");
1055 char_ptr_type = CoreLookupType ("System.Char*");
1056 decimal_type = CoreLookupType ("System.Decimal");
1057 bool_type = CoreLookupType ("System.Boolean");
1058 enum_type = CoreLookupType ("System.Enum");
1060 multicast_delegate_type = CoreLookupType ("System.MulticastDelegate");
1061 delegate_type = CoreLookupType ("System.Delegate");
1063 array_type = CoreLookupType ("System.Array");
1064 void_type = CoreLookupType ("System.Void");
1065 type_type = CoreLookupType ("System.Type");
1067 runtime_field_handle_type = CoreLookupType ("System.RuntimeFieldHandle");
1068 runtime_argument_handle_type = CoreLookupType ("System.RuntimeArgumentHandle");
1069 runtime_helpers_type = CoreLookupType ("System.Runtime.CompilerServices.RuntimeHelpers");
1070 default_member_type = CoreLookupType ("System.Reflection.DefaultMemberAttribute");
1071 runtime_handle_type = CoreLookupType ("System.RuntimeTypeHandle");
1072 asynccallback_type = CoreLookupType ("System.AsyncCallback");
1073 iasyncresult_type = CoreLookupType ("System.IAsyncResult");
1074 ienumerator_type = CoreLookupType ("System.Collections.IEnumerator");
1075 ienumerable_type = CoreLookupType ("System.Collections.IEnumerable");
1076 idisposable_type = CoreLookupType ("System.IDisposable");
1077 icloneable_type = CoreLookupType ("System.ICloneable");
1078 iconvertible_type = CoreLookupType ("System.IConvertible");
1079 monitor_type = CoreLookupType ("System.Threading.Monitor");
1080 intptr_type = CoreLookupType ("System.IntPtr");
1082 attribute_type = CoreLookupType ("System.Attribute");
1083 attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
1084 dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
1085 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
1086 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
1087 param_array_type = CoreLookupType ("System.ParamArrayAttribute");
1088 in_attribute_type = CoreLookupType ("System.Runtime.InteropServices.InAttribute");
1089 typed_reference_type = CoreLookupType ("System.TypedReference");
1090 arg_iterator_type = CoreLookupType ("System.ArgIterator");
1091 mbr_type = CoreLookupType ("System.MarshalByRefObject");
1094 // Sigh. Remove this before the release. Wonder what versions of Mono
1095 // people are running.
1097 guid_attr_type = LookupType ("System.Runtime.InteropServices.GuidAttribute");
1099 unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
1101 void_ptr_type = CoreLookupType ("System.Void*");
1103 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
1105 exception_type = CoreLookupType ("System.Exception");
1106 invalid_operation_exception_type = CoreLookupType ("System.InvalidOperationException");
1107 not_supported_exception_type = CoreLookupType ("System.NotSupportedException");
1112 obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
1113 conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
1114 cls_compliant_attribute_type = CoreLookupType ("System.CLSCompliantAttribute");
1115 struct_layout_attribute_type = CoreLookupType ("System.Runtime.InteropServices.StructLayoutAttribute");
1116 field_offset_attribute_type = CoreLookupType ("System.Runtime.InteropServices.FieldOffsetAttribute");
1117 security_attr_type = CoreLookupType ("System.Security.Permissions.SecurityAttribute");
1120 // When compiling corlib, store the "real" types here.
1122 if (!RootContext.StdLib) {
1123 system_int32_type = typeof (System.Int32);
1124 system_array_type = typeof (System.Array);
1125 system_type_type = typeof (System.Type);
1126 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
1128 Type [] void_arg = { };
1129 system_int_array_get_length = GetMethod (
1130 system_array_type, "get_Length", void_arg);
1131 system_int_array_get_rank = GetMethod (
1132 system_array_type, "get_Rank", void_arg);
1133 system_object_array_clone = GetMethod (
1134 system_array_type, "Clone", void_arg);
1136 Type [] system_int_arg = { system_int32_type };
1137 system_int_array_get_length_int = GetMethod (
1138 system_array_type, "GetLength", system_int_arg);
1139 system_int_array_get_upper_bound_int = GetMethod (
1140 system_array_type, "GetUpperBound", system_int_arg);
1141 system_int_array_get_lower_bound_int = GetMethod (
1142 system_array_type, "GetLowerBound", system_int_arg);
1144 Type [] system_array_int_arg = { system_array_type, system_int32_type };
1145 system_void_array_copyto_array_int = GetMethod (
1146 system_array_type, "CopyTo", system_array_int_arg);
1148 Type [] system_3_type_arg = {
1149 system_type_type, system_type_type, system_type_type };
1150 Type [] system_4_type_arg = {
1151 system_type_type, system_type_type, system_type_type, system_type_type };
1153 MethodInfo set_corlib_type_builders = GetMethod (
1154 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1155 system_4_type_arg, true, false);
1157 if (set_corlib_type_builders != null) {
1158 object[] args = new object [4];
1159 args [0] = object_type;
1160 args [1] = value_type;
1161 args [2] = enum_type;
1162 args [3] = void_type;
1164 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1166 // Compatibility for an older version of the class libs.
1167 set_corlib_type_builders = GetMethod (
1168 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1169 system_3_type_arg, true, true);
1171 if (set_corlib_type_builders == null) {
1172 Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
1176 object[] args = new object [3];
1177 args [0] = object_type;
1178 args [1] = value_type;
1179 args [2] = enum_type;
1181 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1185 system_object_expr.Type = object_type;
1186 system_string_expr.Type = string_type;
1187 system_boolean_expr.Type = bool_type;
1188 system_decimal_expr.Type = decimal_type;
1189 system_single_expr.Type = float_type;
1190 system_double_expr.Type = double_type;
1191 system_sbyte_expr.Type = sbyte_type;
1192 system_byte_expr.Type = byte_type;
1193 system_int16_expr.Type = short_type;
1194 system_uint16_expr.Type = ushort_type;
1195 system_int32_expr.Type = int32_type;
1196 system_uint32_expr.Type = uint32_type;
1197 system_int64_expr.Type = int64_type;
1198 system_uint64_expr.Type = uint64_type;
1199 system_char_expr.Type = char_type;
1200 system_void_expr.Type = void_type;
1201 system_asynccallback_expr.Type = asynccallback_type;
1202 system_iasyncresult_expr.Type = iasyncresult_type;
1203 system_valuetype_expr.Type = value_type;
1206 // These are only used for compare purposes
1208 anonymous_method_type = typeof (AnonymousMethod);
1212 // The helper methods that are used by the compiler
1214 public static void InitCodeHelpers ()
1217 // Now load the default methods that we use.
1219 Type [] string_string = { string_type, string_type };
1220 string_concat_string_string = GetMethod (
1221 string_type, "Concat", string_string);
1222 Type [] string_string_string = { string_type, string_type, string_type };
1223 string_concat_string_string_string = GetMethod (
1224 string_type, "Concat", string_string_string);
1225 Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
1226 string_concat_string_string_string_string = GetMethod (
1227 string_type, "Concat", string_string_string_string);
1228 Type[] params_string = { TypeManager.LookupType ("System.String[]") };
1229 string_concat_string_dot_dot_dot = GetMethod (
1230 string_type, "Concat", params_string);
1232 Type [] object_object = { object_type, object_type };
1233 string_concat_object_object = GetMethod (
1234 string_type, "Concat", object_object);
1235 Type [] object_object_object = { object_type, object_type, object_type };
1236 string_concat_object_object_object = GetMethod (
1237 string_type, "Concat", object_object_object);
1238 Type[] params_object = { TypeManager.LookupType ("System.Object[]") };
1239 string_concat_object_dot_dot_dot = GetMethod (
1240 string_type, "Concat", params_object);
1242 Type [] string_ = { string_type };
1243 string_isinterneted_string = GetMethod (
1244 string_type, "IsInterned", string_);
1246 Type [] runtime_type_handle = { runtime_handle_type };
1247 system_type_get_type_from_handle = GetMethod (
1248 type_type, "GetTypeFromHandle", runtime_type_handle);
1250 Type [] delegate_delegate = { delegate_type, delegate_type };
1251 delegate_combine_delegate_delegate = GetMethod (
1252 delegate_type, "Combine", delegate_delegate);
1254 delegate_remove_delegate_delegate = GetMethod (
1255 delegate_type, "Remove", delegate_delegate);
1260 Type [] void_arg = { };
1261 object_getcurrent_void = GetMethod (
1262 ienumerator_type, "get_Current", void_arg);
1263 bool_movenext_void = GetMethod (
1264 ienumerator_type, "MoveNext", void_arg);
1265 void_reset_void = GetMethod (
1266 ienumerator_type, "Reset", void_arg);
1267 void_dispose_void = GetMethod (
1268 idisposable_type, "Dispose", void_arg);
1269 int_get_offset_to_string_data = GetMethod (
1270 runtime_helpers_type, "get_OffsetToStringData", void_arg);
1271 int_array_get_length = GetMethod (
1272 array_type, "get_Length", void_arg);
1273 int_array_get_rank = GetMethod (
1274 array_type, "get_Rank", void_arg);
1275 ienumerable_getenumerator_void = GetMethod (
1276 ienumerable_type, "GetEnumerator", void_arg);
1281 Type [] int_arg = { int32_type };
1282 int_array_get_length_int = GetMethod (
1283 array_type, "GetLength", int_arg);
1284 int_array_get_upper_bound_int = GetMethod (
1285 array_type, "GetUpperBound", int_arg);
1286 int_array_get_lower_bound_int = GetMethod (
1287 array_type, "GetLowerBound", int_arg);
1290 // System.Array methods
1292 object_array_clone = GetMethod (
1293 array_type, "Clone", void_arg);
1294 Type [] array_int_arg = { array_type, int32_type };
1295 void_array_copyto_array_int = GetMethod (
1296 array_type, "CopyTo", array_int_arg);
1301 Type [] object_arg = { object_type };
1302 void_monitor_enter_object = GetMethod (
1303 monitor_type, "Enter", object_arg);
1304 void_monitor_exit_object = GetMethod (
1305 monitor_type, "Exit", object_arg);
1307 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1309 void_initializearray_array_fieldhandle = GetMethod (
1310 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1315 int_getlength_int = GetMethod (
1316 array_type, "GetLength", int_arg);
1319 // Decimal constructors
1321 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1322 void_decimal_ctor_five_args = GetConstructor (
1323 decimal_type, dec_arg);
1328 cons_param_array_attribute = GetConstructor (
1329 param_array_type, void_arg);
1331 unverifiable_code_ctor = GetConstructor (
1332 unverifiable_code_type, void_arg);
1334 default_member_ctor = GetConstructor (default_member_type, string_);
1337 // InvalidOperationException
1339 invalid_operation_ctor = GetConstructor (
1340 invalid_operation_exception_type, void_arg);
1344 object_ctor = GetConstructor (object_type, void_arg);
1348 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1351 /// This is the "old", non-cache based FindMembers() function. We cannot use
1352 /// the cache here because there is no member name argument.
1354 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1355 MemberFilter filter, object criteria)
1357 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1360 // `builder_to_declspace' contains all dynamic types.
1364 Timer.StartTimer (TimerType.FindMembers);
1365 list = decl.FindMembers (mt, bf, filter, criteria);
1366 Timer.StopTimer (TimerType.FindMembers);
1371 // We have to take care of arrays specially, because GetType on
1372 // a TypeBuilder array will return a Type, not a TypeBuilder,
1373 // and we can not call FindMembers on this type.
1375 if (t.IsSubclassOf (TypeManager.array_type))
1376 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1379 // Since FindMembers will not lookup both static and instance
1380 // members, we emulate this behaviour here.
1382 if ((bf & instance_and_static) == instance_and_static){
1383 MemberInfo [] i_members = t.FindMembers (
1384 mt, bf & ~BindingFlags.Static, filter, criteria);
1386 int i_len = i_members.Length;
1388 MemberInfo one = i_members [0];
1391 // If any of these are present, we are done!
1393 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1394 return new MemberList (i_members);
1397 MemberInfo [] s_members = t.FindMembers (
1398 mt, bf & ~BindingFlags.Instance, filter, criteria);
1400 int s_len = s_members.Length;
1401 if (i_len > 0 || s_len > 0)
1402 return new MemberList (i_members, s_members);
1405 return new MemberList (i_members);
1407 return new MemberList (s_members);
1411 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1416 /// This method is only called from within MemberLookup. It tries to use the member
1417 /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
1418 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1419 /// our return value will already contain all inherited members and the caller don't need
1420 /// to check base classes and interfaces anymore.
1422 private static MemberInfo [] MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1423 string name, out bool used_cache)
1426 // We have to take care of arrays specially, because GetType on
1427 // a TypeBuilder array will return a Type, not a TypeBuilder,
1428 // and we can not call FindMembers on this type.
1430 if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
1432 return TypeHandle.ArrayType.MemberCache.FindMembers (
1433 mt, bf, name, FilterWithClosure_delegate, null);
1437 // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
1438 // and we can ask the DeclSpace for the MemberCache.
1440 if (t is TypeBuilder) {
1441 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1442 MemberCache cache = decl.MemberCache;
1445 // If this DeclSpace has a MemberCache, use it.
1448 if (cache != null) {
1450 return cache.FindMembers (
1451 mt, bf, name, FilterWithClosure_delegate, null);
1454 // If there is no MemberCache, we need to use the "normal" FindMembers.
1455 // Note, this is a VERY uncommon route!
1458 Timer.StartTimer (TimerType.FindMembers);
1459 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
1460 FilterWithClosure_delegate, name);
1461 Timer.StopTimer (TimerType.FindMembers);
1464 return (MemberInfo []) list;
1468 // This call will always succeed. There is exactly one TypeHandle instance per
1469 // type, TypeHandle.GetTypeHandle() will either return it or create a new one
1470 // if it didn't already exist.
1472 TypeHandle handle = TypeHandle.GetTypeHandle (t);
1475 return handle.MemberCache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1478 public static bool IsBuiltinType (Type t)
1480 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1481 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1482 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1483 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
1489 public static bool IsBuiltinType (TypeContainer tc)
1491 return IsBuiltinType (tc.TypeBuilder);
1495 // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
1496 // the pieces in the code where we use IsBuiltinType and special case decimal_type.
1498 public static bool IsCLRType (Type t)
1500 if (t == object_type || t == int32_type || t == uint32_type ||
1501 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1502 t == char_type || t == short_type || t == bool_type ||
1503 t == sbyte_type || t == byte_type || t == ushort_type)
1509 public static bool IsDelegateType (Type t)
1511 if (t.IsSubclassOf (TypeManager.delegate_type))
1517 public static bool IsEnumType (Type t)
1519 if (t.IsSubclassOf (TypeManager.enum_type))
1524 public static bool IsBuiltinOrEnum (Type t)
1526 if (IsBuiltinType (t))
1536 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1538 public static bool IsUnmanagedType (Type t)
1540 if (IsBuiltinType (t) && t != TypeManager.string_type)
1549 if (IsValueType (t)){
1550 if (t is TypeBuilder){
1551 TypeContainer tc = LookupTypeContainer (t);
1553 if (tc.Fields != null){
1554 foreach (Field f in tc.Fields){
1555 if (f.FieldBuilder.IsStatic)
1557 if (!IsUnmanagedType (f.FieldBuilder.FieldType))
1563 FieldInfo [] fields = t.GetFields ();
1565 foreach (FieldInfo f in fields){
1568 if (!IsUnmanagedType (f.FieldType))
1578 public static bool IsValueType (Type t)
1580 if (t.IsSubclassOf (TypeManager.value_type) && (t != TypeManager.enum_type))
1586 public static bool IsInterfaceType (Type t)
1588 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
1592 return tc.Kind == Kind.Interface;
1596 // Checks whether `type' is a subclass or nested child of `parent'.
1598 public static bool IsSubclassOrNestedChildOf (Type type, Type parent)
1601 if ((type == parent) || type.IsSubclassOf (parent))
1604 // Handle nested types.
1605 type = type.DeclaringType;
1606 } while (type != null);
1612 // Checks whether `type' is a nested child of `parent'.
1614 public static bool IsNestedChildOf (Type type, Type parent)
1619 type = type.DeclaringType;
1620 while (type != null) {
1624 type = type.DeclaringType;
1631 // Do the right thing when returning the element type of an
1632 // array type based on whether we are compiling corlib or not
1634 public static Type GetElementType (Type t)
1636 if (RootContext.StdLib)
1637 return t.GetElementType ();
1639 return TypeToCoreType (t.GetElementType ());
1643 /// Returns the User Defined Types
1645 public static ArrayList UserTypes {
1651 public static Hashtable TypeContainers {
1653 return typecontainers;
1657 static Hashtable builder_to_constant;
1659 public static void RegisterConstant (FieldBuilder fb, Const c)
1661 if (builder_to_constant == null)
1662 builder_to_constant = new PtrHashtable ();
1664 if (builder_to_constant.Contains (fb))
1667 builder_to_constant.Add (fb, c);
1670 public static Const LookupConstant (FieldBuilder fb)
1672 if (builder_to_constant == null)
1675 return (Const) builder_to_constant [fb];
1679 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1683 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1684 /// for anything which is dynamic, and we need this in a number of places,
1685 /// we register this information here, and use it afterwards.
1687 static public void RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1692 method_arguments.Add (mb, args);
1693 method_internal_params.Add (mb, ip);
1696 static public InternalParameters LookupParametersByBuilder (MethodBase mb)
1698 if (! (mb is ConstructorBuilder || mb is MethodBuilder))
1701 if (method_internal_params.Contains (mb))
1702 return (InternalParameters) method_internal_params [mb];
1704 throw new Exception ("Argument for Method not registered" + mb);
1708 /// Returns the argument types for a method based on its methodbase
1710 /// For dynamic methods, we use the compiler provided types, for
1711 /// methods from existing assemblies we load them from GetParameters,
1712 /// and insert them into the cache
1714 static public Type [] GetArgumentTypes (MethodBase mb)
1716 object t = method_arguments [mb];
1720 ParameterInfo [] pi = mb.GetParameters ();
1727 types = new Type [c];
1728 for (int i = 0; i < c; i++)
1729 types [i] = pi [i].ParameterType;
1731 method_arguments.Add (mb, types);
1736 /// Returns the argument types for an indexer based on its PropertyInfo
1738 /// For dynamic indexers, we use the compiler provided types, for
1739 /// indexers from existing assemblies we load them from GetParameters,
1740 /// and insert them into the cache
1742 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1744 if (indexer_arguments.Contains (indexer))
1745 return (Type []) indexer_arguments [indexer];
1746 else if (indexer is PropertyBuilder)
1747 // If we're a PropertyBuilder and not in the
1748 // `indexer_arguments' hash, then we're a property and
1752 ParameterInfo [] pi = indexer.GetIndexParameters ();
1753 // Property, not an indexer.
1757 Type [] types = new Type [c];
1759 for (int i = 0; i < c; i++)
1760 types [i] = pi [i].ParameterType;
1762 indexer_arguments.Add (indexer, types);
1768 // This is a workaround the fact that GetValue is not
1769 // supported for dynamic types
1771 static Hashtable fields = new Hashtable ();
1772 static public bool RegisterFieldValue (FieldBuilder fb, object value)
1774 if (fields.Contains (fb))
1777 fields.Add (fb, value);
1782 static public object GetValue (FieldBuilder fb)
1787 static Hashtable fieldbuilders_to_fields = new Hashtable ();
1788 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1790 if (fieldbuilders_to_fields.Contains (fb))
1793 fieldbuilders_to_fields.Add (fb, f);
1798 // The return value can be null; This will be the case for
1799 // auxiliary FieldBuilders created by the compiler that have no
1800 // real field being declared on the source code
1802 static public FieldBase GetField (FieldInfo fb)
1804 return (FieldBase) fieldbuilders_to_fields [fb];
1807 static Hashtable events;
1809 static public void RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1812 events = new Hashtable ();
1814 if (!events.Contains (eb)) {
1815 events.Add (eb, new Pair (add, remove));
1819 static public MethodInfo GetAddMethod (EventInfo ei)
1821 if (ei is MyEventBuilder) {
1822 Pair pair = (Pair) events [ei];
1824 return (MethodInfo) pair.First;
1826 return ei.GetAddMethod (true);
1829 static public MethodInfo GetRemoveMethod (EventInfo ei)
1831 if (ei is MyEventBuilder) {
1832 Pair pair = (Pair) events [ei];
1834 return (MethodInfo) pair.Second;
1836 return ei.GetRemoveMethod (true);
1839 static Hashtable priv_fields_events;
1841 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1843 if (priv_fields_events == null)
1844 priv_fields_events = new Hashtable ();
1846 if (priv_fields_events.Contains (einfo))
1849 priv_fields_events.Add (einfo, builder);
1854 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1856 if (priv_fields_events == null)
1859 return (MemberInfo) priv_fields_events [ei];
1862 static Hashtable properties;
1864 static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase set)
1866 if (properties == null)
1867 properties = new Hashtable ();
1869 if (properties.Contains (pb))
1872 properties.Add (pb, new Pair (get, set));
1877 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get,
1878 MethodBase set, Type[] args)
1880 if (!RegisterProperty (pb, get,set))
1883 indexer_arguments.Add (pb, args);
1888 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen)
1890 Hashtable hash = new Hashtable ();
1891 return CheckStructCycles (tc, seen, hash);
1894 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen,
1897 if ((tc.Kind != Kind.Struct) || IsBuiltinType (tc))
1901 // `seen' contains all types we've already visited.
1903 if (seen.Contains (tc))
1905 seen.Add (tc, null);
1907 if (tc.Fields == null)
1910 foreach (Field field in tc.Fields) {
1911 if (field.FieldBuilder.IsStatic)
1914 Type ftype = field.FieldBuilder.FieldType;
1915 TypeContainer ftc = LookupTypeContainer (ftype);
1919 if (hash.Contains (ftc)) {
1920 Report.Error (523, tc.Location,
1921 "Struct member `{0}.{1}' of type `{2}' " +
1922 "causes a cycle in the struct layout",
1923 tc.Name, field.Name, ftc.Name);
1928 // `hash' contains all types in the current path.
1930 hash.Add (tc, null);
1932 bool ok = CheckStructCycles (ftc, seen, hash);
1939 if (!seen.Contains (ftc))
1940 seen.Add (ftc, null);
1947 /// Given an array of interface types, expand and eliminate repeated ocurrences
1948 /// of an interface.
1952 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
1955 public static Type[] ExpandInterfaces (EmitContext ec, TypeExpr [] base_interfaces)
1957 ArrayList new_ifaces = new ArrayList ();
1959 foreach (TypeExpr iface in base_interfaces){
1960 Type itype = iface.ResolveType (ec);
1964 if (!new_ifaces.Contains (itype))
1965 new_ifaces.Add (itype);
1967 Type [] implementing = itype.GetInterfaces ();
1969 foreach (Type imp in implementing){
1970 if (!new_ifaces.Contains (imp))
1971 new_ifaces.Add (imp);
1974 Type [] ret = new Type [new_ifaces.Count];
1975 new_ifaces.CopyTo (ret, 0);
1979 static PtrHashtable iface_cache = new PtrHashtable ();
1982 /// This function returns the interfaces in the type `t'. Works with
1983 /// both types and TypeBuilders.
1985 public static Type [] GetInterfaces (Type t)
1988 Type [] cached = iface_cache [t] as Type [];
1993 // The reason for catching the Array case is that Reflection.Emit
1994 // will not return a TypeBuilder for Array types of TypeBuilder types,
1995 // but will still throw an exception if we try to call GetInterfaces
1998 // Since the array interfaces are always constant, we return those for
2003 t = TypeManager.array_type;
2005 if (t is TypeBuilder){
2006 Type [] parent_ifaces;
2008 if (t.BaseType == null)
2009 parent_ifaces = NoTypes;
2011 parent_ifaces = GetInterfaces (t.BaseType);
2012 Type [] type_ifaces = (Type []) builder_to_ifaces [t];
2013 if (type_ifaces == null)
2014 type_ifaces = NoTypes;
2016 int parent_count = parent_ifaces.Length;
2017 Type [] result = new Type [parent_count + type_ifaces.Length];
2018 parent_ifaces.CopyTo (result, 0);
2019 type_ifaces.CopyTo (result, parent_count);
2021 iface_cache [t] = result;
2024 Type[] ifaces = t.GetInterfaces ();
2025 iface_cache [t] = ifaces;
2031 // gets the interfaces that are declared explicitly on t
2033 public static Type [] GetExplicitInterfaces (TypeBuilder t)
2035 return (Type []) builder_to_ifaces [t];
2039 /// The following is used to check if a given type implements an interface.
2040 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
2042 public static bool ImplementsInterface (Type t, Type iface)
2047 // FIXME OPTIMIZATION:
2048 // as soon as we hit a non-TypeBuiler in the interface
2049 // chain, we could return, as the `Type.GetInterfaces'
2050 // will return all the interfaces implement by the type
2054 interfaces = GetInterfaces (t);
2056 if (interfaces != null){
2057 foreach (Type i in interfaces){
2064 } while (t != null);
2069 static NumberFormatInfo nf_provider = CultureInfo.CurrentCulture.NumberFormat;
2071 // This is a custom version of Convert.ChangeType() which works
2072 // with the TypeBuilder defined types when compiling corlib.
2073 public static object ChangeType (object value, Type conversionType, out bool error)
2075 IConvertible convert_value = value as IConvertible;
2077 if (convert_value == null){
2083 // We must use Type.Equals() here since `conversionType' is
2084 // the TypeBuilder created version of a system type and not
2085 // the system type itself. You cannot use Type.GetTypeCode()
2086 // on such a type - it'd always return TypeCode.Object.
2090 if (conversionType.Equals (typeof (Boolean)))
2091 return (object)(convert_value.ToBoolean (nf_provider));
2092 else if (conversionType.Equals (typeof (Byte)))
2093 return (object)(convert_value.ToByte (nf_provider));
2094 else if (conversionType.Equals (typeof (Char)))
2095 return (object)(convert_value.ToChar (nf_provider));
2096 else if (conversionType.Equals (typeof (DateTime)))
2097 return (object)(convert_value.ToDateTime (nf_provider));
2098 else if (conversionType.Equals (typeof (Decimal)))
2099 return (object)(convert_value.ToDecimal (nf_provider));
2100 else if (conversionType.Equals (typeof (Double)))
2101 return (object)(convert_value.ToDouble (nf_provider));
2102 else if (conversionType.Equals (typeof (Int16)))
2103 return (object)(convert_value.ToInt16 (nf_provider));
2104 else if (conversionType.Equals (typeof (Int32)))
2105 return (object)(convert_value.ToInt32 (nf_provider));
2106 else if (conversionType.Equals (typeof (Int64)))
2107 return (object)(convert_value.ToInt64 (nf_provider));
2108 else if (conversionType.Equals (typeof (SByte)))
2109 return (object)(convert_value.ToSByte (nf_provider));
2110 else if (conversionType.Equals (typeof (Single)))
2111 return (object)(convert_value.ToSingle (nf_provider));
2112 else if (conversionType.Equals (typeof (String)))
2113 return (object)(convert_value.ToString (nf_provider));
2114 else if (conversionType.Equals (typeof (UInt16)))
2115 return (object)(convert_value.ToUInt16 (nf_provider));
2116 else if (conversionType.Equals (typeof (UInt32)))
2117 return (object)(convert_value.ToUInt32 (nf_provider));
2118 else if (conversionType.Equals (typeof (UInt64)))
2119 return (object)(convert_value.ToUInt64 (nf_provider));
2120 else if (conversionType.Equals (typeof (Object)))
2121 return (object)(value);
2131 // This is needed, because enumerations from assemblies
2132 // do not report their underlyingtype, but they report
2135 public static Type EnumToUnderlying (Type t)
2137 if (t == TypeManager.enum_type)
2140 t = t.UnderlyingSystemType;
2141 if (!TypeManager.IsEnumType (t))
2144 if (t is TypeBuilder) {
2145 // slow path needed to compile corlib
2146 if (t == TypeManager.bool_type ||
2147 t == TypeManager.byte_type ||
2148 t == TypeManager.sbyte_type ||
2149 t == TypeManager.char_type ||
2150 t == TypeManager.short_type ||
2151 t == TypeManager.ushort_type ||
2152 t == TypeManager.int32_type ||
2153 t == TypeManager.uint32_type ||
2154 t == TypeManager.int64_type ||
2155 t == TypeManager.uint64_type)
2157 throw new Exception ("Unhandled typecode in enum " + " from " + t.AssemblyQualifiedName);
2159 TypeCode tc = Type.GetTypeCode (t);
2162 case TypeCode.Boolean:
2163 return TypeManager.bool_type;
2165 return TypeManager.byte_type;
2166 case TypeCode.SByte:
2167 return TypeManager.sbyte_type;
2169 return TypeManager.char_type;
2170 case TypeCode.Int16:
2171 return TypeManager.short_type;
2172 case TypeCode.UInt16:
2173 return TypeManager.ushort_type;
2174 case TypeCode.Int32:
2175 return TypeManager.int32_type;
2176 case TypeCode.UInt32:
2177 return TypeManager.uint32_type;
2178 case TypeCode.Int64:
2179 return TypeManager.int64_type;
2180 case TypeCode.UInt64:
2181 return TypeManager.uint64_type;
2183 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
2187 // When compiling corlib and called with one of the core types, return
2188 // the corresponding typebuilder for that type.
2190 public static Type TypeToCoreType (Type t)
2192 if (RootContext.StdLib || (t is TypeBuilder))
2195 TypeCode tc = Type.GetTypeCode (t);
2198 case TypeCode.Boolean:
2199 return TypeManager.bool_type;
2201 return TypeManager.byte_type;
2202 case TypeCode.SByte:
2203 return TypeManager.sbyte_type;
2205 return TypeManager.char_type;
2206 case TypeCode.Int16:
2207 return TypeManager.short_type;
2208 case TypeCode.UInt16:
2209 return TypeManager.ushort_type;
2210 case TypeCode.Int32:
2211 return TypeManager.int32_type;
2212 case TypeCode.UInt32:
2213 return TypeManager.uint32_type;
2214 case TypeCode.Int64:
2215 return TypeManager.int64_type;
2216 case TypeCode.UInt64:
2217 return TypeManager.uint64_type;
2218 case TypeCode.Single:
2219 return TypeManager.float_type;
2220 case TypeCode.Double:
2221 return TypeManager.double_type;
2222 case TypeCode.String:
2223 return TypeManager.string_type;
2225 if (t == typeof (void))
2226 return TypeManager.void_type;
2227 if (t == typeof (object))
2228 return TypeManager.object_type;
2229 if (t == typeof (System.Type))
2230 return TypeManager.type_type;
2231 if (t == typeof (System.IntPtr))
2232 return TypeManager.intptr_type;
2238 /// Utility function that can be used to probe whether a type
2239 /// is managed or not.
2241 public static bool VerifyUnManaged (Type t, Location loc)
2243 if (t.IsValueType || t.IsPointer){
2245 // FIXME: this is more complex, we actually need to
2246 // make sure that the type does not contain any
2252 if (!RootContext.StdLib && (t == TypeManager.decimal_type))
2253 // We need this explicit check here to make it work when
2254 // compiling corlib.
2259 "Cannot take the address or size of a variable of a managed type ('" +
2260 CSharpName (t) + "')");
2265 /// Returns the name of the indexer in a given type.
2268 /// The default is not always `Item'. The user can change this behaviour by
2269 /// using the IndexerNameAttribute in the container.
2270 /// For example, the String class indexer is named `Chars' not `Item'
2272 public static string IndexerPropertyName (Type t)
2274 if (t is TypeBuilder) {
2275 TypeContainer tc = t.IsInterface ? LookupInterface (t) : LookupTypeContainer (t);
2276 return tc == null ? TypeContainer.DefaultIndexerName : tc.IndexerName;
2279 System.Attribute attr = System.Attribute.GetCustomAttribute (
2280 t, TypeManager.default_member_type);
2282 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
2283 return dma.MemberName;
2286 return TypeContainer.DefaultIndexerName;
2289 static MethodInfo declare_local_method = null;
2291 public static LocalBuilder DeclareLocalPinned (ILGenerator ig, Type t)
2293 if (declare_local_method == null){
2294 declare_local_method = typeof (ILGenerator).GetMethod (
2296 BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
2298 new Type [] { typeof (Type), typeof (bool)},
2300 if (declare_local_method == null){
2301 Report.Warning (-24, new Location (-1),
2302 "This version of the runtime does not support making pinned local variables. " +
2303 "This code may cause errors on a runtime with a moving GC");
2304 return ig.DeclareLocal (t);
2307 return (LocalBuilder) declare_local_method.Invoke (ig, new object [] { t, true });
2311 // Returns whether the array of memberinfos contains the given method
2313 public static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
2315 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
2317 foreach (MethodBase method in array) {
2318 if (method.Name != new_method.Name)
2321 if (method is MethodInfo && new_method is MethodInfo)
2322 if (((MethodInfo) method).ReturnType != ((MethodInfo) new_method).ReturnType)
2326 Type [] old_args = TypeManager.GetArgumentTypes (method);
2327 int old_count = old_args.Length;
2330 if (new_args.Length != old_count)
2333 for (i = 0; i < old_count; i++){
2334 if (old_args [i] != new_args [i])
2347 // We copy methods from `new_members' into `target_list' if the signature
2348 // for the method from in the new list does not exist in the target_list
2350 // The name is assumed to be the same.
2352 public static ArrayList CopyNewMethods (ArrayList target_list, IList new_members)
2354 if (target_list == null){
2355 target_list = new ArrayList ();
2357 foreach (MemberInfo mi in new_members){
2358 if (mi is MethodBase)
2359 target_list.Add (mi);
2364 MemberInfo [] target_array = new MemberInfo [target_list.Count];
2365 target_list.CopyTo (target_array, 0);
2367 foreach (MemberInfo mi in new_members){
2368 MethodBase new_method = (MethodBase) mi;
2370 if (!ArrayContainsMethod (target_array, new_method))
2371 target_list.Add (new_method);
2377 #region MemberLookup implementation
2380 // Whether we allow private members in the result (since FindMembers
2381 // uses NonPublic for both protected and private), we need to distinguish.
2384 static internal bool FilterNone (MemberInfo m, object filter_criteria)
2389 internal class Closure {
2390 internal bool private_ok;
2392 // Who is invoking us and which type is being queried currently.
2393 internal Type invocation_type;
2394 internal Type qualifier_type;
2396 // The assembly that defines the type is that is calling us
2397 internal Assembly invocation_assembly;
2398 internal IList almost_match;
2400 private bool CheckValidFamilyAccess (bool is_static, MemberInfo m)
2402 if (invocation_type == null)
2405 Debug.Assert (IsSubclassOrNestedChildOf (invocation_type, m.DeclaringType));
2410 // A nested class has access to all the protected members visible to its parent.
2411 if (qualifier_type != null
2412 && TypeManager.IsNestedChildOf (invocation_type, qualifier_type))
2415 if (invocation_type == m.DeclaringType
2416 || invocation_type.IsSubclassOf (m.DeclaringType)) {
2417 // Although a derived class can access protected members of its base class
2418 // it cannot do so through an instance of the base class (CS1540).
2419 // => Ancestry should be: declaring_type ->* invocation_type ->* qualified_type
2420 if (qualifier_type == null
2421 || qualifier_type == invocation_type
2422 || qualifier_type.IsSubclassOf (invocation_type))
2426 if (almost_match != null)
2427 almost_match.Add (m);
2432 // This filter filters by name + whether it is ok to include private
2433 // members in the search
2435 internal bool Filter (MemberInfo m, object filter_criteria)
2438 // Hack: we know that the filter criteria will always be in the `closure'
2442 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2445 if (((qualifier_type == null) || (qualifier_type == invocation_type)) &&
2446 (m.DeclaringType == invocation_type))
2450 // Ugly: we need to find out the type of `m', and depending
2451 // on this, tell whether we accept or not
2453 if (m is MethodBase){
2454 MethodBase mb = (MethodBase) m;
2455 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2457 if (ma == MethodAttributes.Private)
2458 return private_ok || (invocation_type == m.DeclaringType) ||
2459 IsNestedChildOf (invocation_type, m.DeclaringType);
2461 // Assembly succeeds if we're in the same assembly.
2462 if (ma == MethodAttributes.Assembly)
2463 return (invocation_assembly == mb.DeclaringType.Assembly);
2465 // FamAndAssem requires that we not only derive, but we are on the same assembly.
2466 if (ma == MethodAttributes.FamANDAssem){
2467 if (invocation_assembly != mb.DeclaringType.Assembly)
2471 // Family and FamANDAssem require that we derive.
2472 if ((ma == MethodAttributes.Family) || (ma == MethodAttributes.FamANDAssem))
2473 return CheckValidFamilyAccess (mb.IsStatic, m);
2479 if (m is FieldInfo){
2480 FieldInfo fi = (FieldInfo) m;
2481 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2483 if (fa == FieldAttributes.Private)
2484 return private_ok || (invocation_type == m.DeclaringType) ||
2485 IsNestedChildOf (invocation_type, m.DeclaringType);
2487 // Assembly succeeds if we're in the same assembly.
2488 if (fa == FieldAttributes.Assembly)
2489 return (invocation_assembly == fi.DeclaringType.Assembly);
2491 // FamAndAssem requires that we not only derive, but we are on the same assembly.
2492 if (fa == FieldAttributes.FamANDAssem){
2493 if (invocation_assembly != fi.DeclaringType.Assembly)
2497 // Family and FamANDAssem require that we derive.
2498 if ((fa == FieldAttributes.Family) || (fa == FieldAttributes.FamANDAssem))
2499 return CheckValidFamilyAccess (fi.IsStatic, m);
2506 // EventInfos and PropertyInfos, return true because they lack permission
2507 // information, so we need to check later on the methods.
2513 static Closure closure = new Closure ();
2514 static MemberFilter FilterWithClosure_delegate = new MemberFilter (closure.Filter);
2517 // Looks up a member called `name' in the `queried_type'. This lookup
2518 // is done by code that is contained in the definition for `invocation_type'
2519 // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
2521 // `invocation_type' is used to check whether we're allowed to access the requested
2522 // member wrt its protection level.
2524 // When called from MemberAccess, `qualifier_type' is the type which is used to access
2525 // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
2526 // is B and qualifier_type is A). This is used to do the CS1540 check.
2528 // When resolving a SimpleName, `qualifier_type' is null.
2530 // The `qualifier_type' is used for the CS1540 check; it's normally either null or
2531 // the same than `queried_type' - except when we're being called from BaseAccess;
2532 // in this case, `invocation_type' is the current type and `queried_type' the base
2533 // type, so this'd normally trigger a CS1540.
2535 // The binding flags are `bf' and the kind of members being looked up are `mt'
2537 // The return value always includes private members which code in `invocation_type'
2538 // is allowed to access (using the specified `qualifier_type' if given); only use
2539 // BindingFlags.NonPublic to bypass the permission check.
2541 // The 'almost_match' argument is used for reporting error CS1540.
2543 // Returns an array of a single element for everything but Methods/Constructors
2544 // that might return multiple matches.
2546 public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_type,
2547 Type queried_type, MemberTypes mt,
2548 BindingFlags original_bf, string name, IList almost_match)
2550 Timer.StartTimer (TimerType.MemberLookup);
2552 MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_type,
2553 queried_type, mt, original_bf, name, almost_match);
2555 Timer.StopTimer (TimerType.MemberLookup);
2560 static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_type,
2561 Type queried_type, MemberTypes mt,
2562 BindingFlags original_bf, string name, IList almost_match)
2564 BindingFlags bf = original_bf;
2566 ArrayList method_list = null;
2567 Type current_type = queried_type;
2568 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2569 bool skip_iface_check = true, used_cache = false;
2570 bool always_ok_flag = false;
2572 closure.invocation_type = invocation_type;
2573 closure.invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2574 closure.qualifier_type = qualifier_type;
2575 closure.almost_match = almost_match;
2578 // If we are a nested class, we always have access to our container
2581 if (invocation_type != null){
2582 string invocation_name = invocation_type.FullName;
2583 if (invocation_name.IndexOf ('+') != -1){
2584 string container = queried_type.FullName + "+";
2585 int container_length = container.Length;
2587 if (invocation_name.Length > container_length){
2588 string shared = invocation_name.Substring (0, container_length);
2590 if (shared == container)
2591 always_ok_flag = true;
2596 // This is from the first time we find a method
2597 // in most cases, we do not actually find a method in the base class
2598 // so we can just ignore it, and save the arraylist allocation
2599 MemberInfo [] first_members_list = null;
2600 bool use_first_members_list = false;
2606 // `NonPublic' is lame, because it includes both protected and
2607 // private methods, so we need to control this behavior by
2608 // explicitly tracking if a private method is ok or not.
2610 // The possible cases are:
2611 // public, private and protected (internal does not come into the
2614 if ((invocation_type != null) &&
2615 ((invocation_type == current_type) ||
2616 IsNestedChildOf (invocation_type, current_type)) ||
2618 bf = original_bf | BindingFlags.NonPublic;
2622 closure.private_ok = (original_bf & BindingFlags.NonPublic) != 0;
2624 Timer.StopTimer (TimerType.MemberLookup);
2626 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2628 Timer.StartTimer (TimerType.MemberLookup);
2631 // When queried for an interface type, the cache will automatically check all
2632 // inherited members, so we don't need to do this here. However, this only
2633 // works if we already used the cache in the first iteration of this loop.
2635 // If we used the cache in any further iteration, we can still terminate the
2636 // loop since the cache always looks in all parent classes.
2642 skip_iface_check = false;
2644 if (current_type == TypeManager.object_type)
2647 current_type = current_type.BaseType;
2650 // This happens with interfaces, they have a null
2651 // basetype. Look members up in the Object class.
2653 if (current_type == null) {
2654 current_type = TypeManager.object_type;
2659 if (list.Length == 0)
2663 // Events and types are returned by both `static' and `instance'
2664 // searches, which means that our above FindMembers will
2665 // return two copies of the same.
2667 if (list.Length == 1 && !(list [0] is MethodBase)){
2672 // Multiple properties: we query those just to find out the indexer
2675 if (list [0] is PropertyInfo)
2679 // We found an event: the cache lookup returns both the event and
2680 // its private field.
2682 if (list [0] is EventInfo) {
2683 if ((list.Length == 2) && (list [1] is FieldInfo))
2684 return new MemberInfo [] { list [0] };
2691 // We found methods, turn the search into "method scan"
2695 if (first_members_list != null) {
2696 if (use_first_members_list) {
2697 method_list = CopyNewMethods (method_list, first_members_list);
2698 use_first_members_list = false;
2701 method_list = CopyNewMethods (method_list, list);
2703 first_members_list = list;
2704 use_first_members_list = true;
2705 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2707 } while (searching);
2709 if (use_first_members_list) {
2710 foreach (MemberInfo mi in first_members_list) {
2711 if (! (mi is MethodBase)) {
2712 method_list = CopyNewMethods (method_list, first_members_list);
2713 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2716 return (MemberInfo []) first_members_list;
2719 if (method_list != null && method_list.Count > 0)
2720 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2723 // This happens if we already used the cache in the first iteration, in this case
2724 // the cache already looked in all interfaces.
2726 if (skip_iface_check)
2730 // Interfaces do not list members they inherit, so we have to
2733 if (!queried_type.IsInterface)
2736 if (queried_type.IsArray)
2737 queried_type = TypeManager.array_type;
2739 Type [] ifaces = GetInterfaces (queried_type);
2743 foreach (Type itype in ifaces){
2746 x = MemberLookup (null, null, itype, mt, bf, name, null);
2754 // Tests whether external method is really special
2755 public static bool IsSpecialMethod (MethodBase mb)
2757 string name = mb.Name;
2758 if (name.StartsWith ("get_") || name.StartsWith ("set_"))
2759 return mb.DeclaringType.GetProperty (name.Substring (4)) != null;
2761 if (name.StartsWith ("add_"))
2762 return mb.DeclaringType.GetEvent (name.Substring (4)) != null;
2764 if (name.StartsWith ("remove_"))
2765 return mb.DeclaringType.GetEvent (name.Substring (7)) != null;
2767 if (name.StartsWith ("op_")){
2768 foreach (string oname in Unary.oper_names) {
2773 foreach (string oname in Binary.oper_names) {
2786 /// There is exactly one instance of this class per type.
2788 public sealed class TypeHandle : IMemberContainer {
2789 public readonly TypeHandle BaseType;
2791 readonly int id = ++next_id;
2792 static int next_id = 0;
2795 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2796 /// a TypeHandle yet, a new instance of it is created. This static method
2797 /// ensures that we'll only have one TypeHandle instance per type.
2799 public static TypeHandle GetTypeHandle (Type t)
2801 TypeHandle handle = (TypeHandle) type_hash [t];
2805 handle = new TypeHandle (t);
2806 type_hash.Add (t, handle);
2810 public static void CleanUp ()
2816 /// Returns the TypeHandle for TypeManager.object_type.
2818 public static IMemberContainer ObjectType {
2820 if (object_type != null)
2823 object_type = GetTypeHandle (TypeManager.object_type);
2830 /// Returns the TypeHandle for TypeManager.array_type.
2832 public static IMemberContainer ArrayType {
2834 if (array_type != null)
2837 array_type = GetTypeHandle (TypeManager.array_type);
2843 private static PtrHashtable type_hash = new PtrHashtable ();
2845 private static TypeHandle object_type = null;
2846 private static TypeHandle array_type = null;
2849 private bool is_interface;
2850 private MemberCache member_cache;
2851 private MemberCache parent_cache;
2853 private TypeHandle (Type type)
2856 if (type.BaseType != null) {
2857 BaseType = GetTypeHandle (type.BaseType);
2858 parent_cache = BaseType.MemberCache;
2859 } else if (type.IsInterface)
2860 parent_cache = TypeManager.LookupInterfaceCache (this, type);
2861 this.is_interface = type.IsInterface;
2862 this.member_cache = new MemberCache (this);
2865 // IMemberContainer methods
2867 public string Name {
2869 return type.FullName;
2879 public MemberCache ParentCache {
2881 return parent_cache;
2885 public bool IsInterface {
2887 return is_interface;
2891 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
2893 MemberInfo [] members;
2894 if (mt == MemberTypes.Event)
2895 members = type.GetEvents (bf | BindingFlags.DeclaredOnly);
2897 members = type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
2899 Array.Reverse (members);
2901 return new MemberList (members);
2904 // IMemberFinder methods
2906 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
2907 MemberFilter filter, object criteria)
2909 return new MemberList (member_cache.FindMembers (mt, bf, name, filter, criteria));
2912 public MemberCache MemberCache {
2914 return member_cache;
2918 public override string ToString ()
2920 if (BaseType != null)
2921 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
2923 return "TypeHandle (" + id + "," + Name + ")";