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 null_type;
59 static public Type enumeration_type;
60 static public Type array_type;
61 static public Type runtime_handle_type;
62 static public Type icloneable_type;
63 static public Type type_type;
64 static public Type ienumerator_type;
65 static public Type ienumerable_type;
66 static public Type idisposable_type;
67 static public Type iconvertible_type;
68 static public Type default_member_type;
69 static public Type iasyncresult_type;
70 static public Type asynccallback_type;
71 static public Type intptr_type;
72 static public Type monitor_type;
73 static public Type runtime_field_handle_type;
74 static public Type runtime_argument_handle_type;
75 static public Type attribute_type;
76 static public Type attribute_usage_type;
77 static public Type decimal_constant_attribute_type;
78 static public Type dllimport_type;
79 static public Type unverifiable_code_type;
80 static public Type methodimpl_attr_type;
81 static public Type marshal_as_attr_type;
82 static public Type param_array_type;
83 static public Type guid_attr_type;
84 static public Type void_ptr_type;
85 static public Type indexer_name_type;
86 static public Type exception_type;
87 static public Type invalid_operation_exception_type;
88 static public Type not_supported_exception_type;
89 static public Type obsolete_attribute_type;
90 static public Type conditional_attribute_type;
91 static public Type in_attribute_type;
92 static public Type out_attribute_type;
93 static public Type anonymous_method_type;
94 static public Type cls_compliant_attribute_type;
95 static public Type typed_reference_type;
96 static public Type arg_iterator_type;
97 static public Type mbr_type;
98 static public Type struct_layout_attribute_type;
99 static public Type field_offset_attribute_type;
100 static public Type security_attr_type;
106 static internal Type compiler_generated_attr_type;
107 static internal Type fixed_buffer_attr_type;
111 // An empty array of types
113 static public Type [] NoTypes;
114 static public TypeExpr [] NoTypeExprs;
118 // Expressions representing the internal types. Used during declaration
121 static public TypeExpr system_object_expr, system_string_expr;
122 static public TypeExpr system_boolean_expr, system_decimal_expr;
123 static public TypeExpr system_single_expr, system_double_expr;
124 static public TypeExpr system_sbyte_expr, system_byte_expr;
125 static public TypeExpr system_int16_expr, system_uint16_expr;
126 static public TypeExpr system_int32_expr, system_uint32_expr;
127 static public TypeExpr system_int64_expr, system_uint64_expr;
128 static public TypeExpr system_char_expr, system_void_expr;
129 static public TypeExpr system_asynccallback_expr;
130 static public TypeExpr system_iasyncresult_expr;
131 static public TypeExpr system_valuetype_expr;
132 static public TypeExpr system_intptr_expr;
135 // This is only used when compiling corlib
137 static public Type system_int32_type;
138 static public Type system_array_type;
139 static public Type system_type_type;
140 static public Type system_assemblybuilder_type;
141 static public MethodInfo system_int_array_get_length;
142 static public MethodInfo system_int_array_get_rank;
143 static public MethodInfo system_object_array_clone;
144 static public MethodInfo system_int_array_get_length_int;
145 static public MethodInfo system_int_array_get_lower_bound_int;
146 static public MethodInfo system_int_array_get_upper_bound_int;
147 static public MethodInfo system_void_array_copyto_array_int;
151 // Internal, not really used outside
153 static Type runtime_helpers_type;
156 // These methods are called by code generated by the compiler
158 static public MethodInfo string_concat_string_string;
159 static public MethodInfo string_concat_string_string_string;
160 static public MethodInfo string_concat_string_string_string_string;
161 static public MethodInfo string_concat_string_dot_dot_dot;
162 static public MethodInfo string_concat_object_object;
163 static public MethodInfo string_concat_object_object_object;
164 static public MethodInfo string_concat_object_dot_dot_dot;
165 static public MethodInfo string_isinterneted_string;
166 static public MethodInfo system_type_get_type_from_handle;
167 static public MethodInfo object_getcurrent_void;
168 static public MethodInfo bool_movenext_void;
169 static public MethodInfo ienumerable_getenumerator_void;
170 static public MethodInfo void_reset_void;
171 static public MethodInfo void_dispose_void;
172 static public MethodInfo void_monitor_enter_object;
173 static public MethodInfo void_monitor_exit_object;
174 static public MethodInfo void_initializearray_array_fieldhandle;
175 static public MethodInfo int_getlength_int;
176 static public MethodInfo delegate_combine_delegate_delegate;
177 static public MethodInfo delegate_remove_delegate_delegate;
178 static public MethodInfo int_get_offset_to_string_data;
179 static public MethodInfo int_array_get_length;
180 static public MethodInfo int_array_get_rank;
181 static public MethodInfo object_array_clone;
182 static public MethodInfo int_array_get_length_int;
183 static public MethodInfo int_array_get_lower_bound_int;
184 static public MethodInfo int_array_get_upper_bound_int;
185 static public MethodInfo void_array_copyto_array_int;
188 // The attribute constructors.
190 static public ConstructorInfo object_ctor;
191 static public ConstructorInfo cons_param_array_attribute;
192 static public ConstructorInfo void_decimal_ctor_five_args;
193 static public ConstructorInfo void_decimal_ctor_int_arg;
194 static public ConstructorInfo unverifiable_code_ctor;
195 static public ConstructorInfo default_member_ctor;
196 static public ConstructorInfo decimal_constant_attribute_ctor;
197 static internal ConstructorInfo struct_layout_attribute_ctor;
203 static internal CustomAttributeBuilder compiler_generated_attr;
204 static internal ConstructorInfo fixed_buffer_attr_ctor;
208 // Holds the Array of Assemblies that have been loaded
209 // (either because it is the default or the user used the
210 // -r command line option)
212 static Assembly [] assemblies;
215 // Keeps a list of modules. We used this to do lookups
216 // on the module using GetType -- needed for arrays
218 static Module [] modules;
221 // This is the type_cache from the assemblies to avoid
222 // hitting System.Reflection on every lookup.
224 static Hashtable types;
227 // This is used to hotld the corresponding TypeContainer objects
228 // since we need this in FindMembers
230 static Hashtable typecontainers;
233 // Keeps track of those types that are defined by the
236 static ArrayList user_types;
238 static PtrHashtable builder_to_declspace;
240 static PtrHashtable builder_to_member_cache;
243 // Tracks the interfaces implemented by typebuilders. We only
244 // enter those who do implement or or more interfaces
246 static PtrHashtable builder_to_ifaces;
249 // Maps MethodBase.RuntimeTypeHandle to a Type array that contains
250 // the arguments to the method
252 static Hashtable method_arguments;
255 // Maps PropertyBuilder to a Type array that contains
256 // the arguments to the indexer
258 static Hashtable indexer_arguments;
261 // Maps a MethodBase to its ParameterData (either InternalParameters or ReflectionParameters)
263 static Hashtable method_params;
266 // Keeps track of methods
269 static Hashtable builder_to_method;
272 // Contains all public types from referenced assemblies.
273 // This member is used only if CLS Compliance verification is required.
275 public static Hashtable all_imported_types;
282 public static void CleanUp ()
284 // Lets get everything clean so that we can collect before generating code
288 typecontainers = null;
290 builder_to_declspace = null;
291 builder_to_member_cache = null;
292 builder_to_ifaces = null;
293 method_arguments = null;
294 indexer_arguments = null;
295 method_params = null;
296 builder_to_method = null;
300 negative_hits = null;
301 builder_to_constant = null;
302 fieldbuilders_to_fields = null;
304 priv_fields_events = null;
307 TypeHandle.CleanUp ();
311 /// A filter for Findmembers that uses the Signature object to
314 static bool SignatureFilter (MemberInfo mi, object criteria)
316 Signature sig = (Signature) criteria;
318 if (!(mi is MethodBase))
321 if (mi.Name != sig.name)
324 int count = sig.args.Length;
326 if (mi is MethodBuilder || mi is ConstructorBuilder){
327 Type [] candidate_args = GetArgumentTypes ((MethodBase) mi);
329 if (candidate_args.Length != count)
332 for (int i = 0; i < count; i++)
333 if (candidate_args [i] != sig.args [i])
338 ParameterInfo [] pars = ((MethodBase) mi).GetParameters ();
340 if (pars.Length != count)
343 for (int i = 0; i < count; i++)
344 if (pars [i].ParameterType != sig.args [i])
350 // A delegate that points to the filter above.
351 static MemberFilter signature_filter;
354 // These are expressions that represent some of the internal data types, used
357 static void InitExpressionTypes ()
359 system_object_expr = new TypeLookupExpression ("System.Object");
360 system_string_expr = new TypeLookupExpression ("System.String");
361 system_boolean_expr = new TypeLookupExpression ("System.Boolean");
362 system_decimal_expr = new TypeLookupExpression ("System.Decimal");
363 system_single_expr = new TypeLookupExpression ("System.Single");
364 system_double_expr = new TypeLookupExpression ("System.Double");
365 system_sbyte_expr = new TypeLookupExpression ("System.SByte");
366 system_byte_expr = new TypeLookupExpression ("System.Byte");
367 system_int16_expr = new TypeLookupExpression ("System.Int16");
368 system_uint16_expr = new TypeLookupExpression ("System.UInt16");
369 system_int32_expr = new TypeLookupExpression ("System.Int32");
370 system_uint32_expr = new TypeLookupExpression ("System.UInt32");
371 system_int64_expr = new TypeLookupExpression ("System.Int64");
372 system_uint64_expr = new TypeLookupExpression ("System.UInt64");
373 system_char_expr = new TypeLookupExpression ("System.Char");
374 system_void_expr = new TypeLookupExpression ("System.Void");
375 system_asynccallback_expr = new TypeLookupExpression ("System.AsyncCallback");
376 system_iasyncresult_expr = new TypeLookupExpression ("System.IAsyncResult");
377 system_valuetype_expr = new TypeLookupExpression ("System.ValueType");
378 system_intptr_expr = new TypeLookupExpression ("System.IntPtr");
381 static TypeManager ()
383 assemblies = new Assembly [0];
385 user_types = new ArrayList ();
387 types = new Hashtable ();
388 typecontainers = new Hashtable ();
390 builder_to_declspace = new PtrHashtable ();
391 builder_to_member_cache = new PtrHashtable ();
392 builder_to_method = new PtrHashtable ();
393 method_arguments = new PtrHashtable ();
394 method_params = new PtrHashtable ();
395 indexer_arguments = new PtrHashtable ();
396 builder_to_ifaces = new PtrHashtable ();
398 NoTypes = new Type [0];
399 NoTypeExprs = new TypeExpr [0];
401 signature_filter = new MemberFilter (SignatureFilter);
402 InitExpressionTypes ();
405 public static void HandleDuplicate (string name, Type t)
407 Type prev = (Type) types [name];
408 TypeContainer tc = builder_to_declspace [prev] as TypeContainer;
412 // This probably never happens, as we catch this before
414 Report.Error (-17, "The type `" + name + "' has already been defined.");
418 tc = builder_to_declspace [t] as TypeContainer;
421 1595, "The type `" + name + "' is defined in an existing assembly;"+
422 " Using the new definition from: " + tc.Location);
425 1595, "The type `" + name + "' is defined in an existing assembly;");
428 Report.Warning (1595, "Previously defined in: " + prev.Assembly.FullName);
434 public static void AddUserType (string name, TypeBuilder t)
439 HandleDuplicate (name, t);
442 negative_hits.Remove (t);
448 // This entry point is used by types that we define under the covers
450 public static void RegisterBuilder (Type tb, Type [] ifaces)
453 builder_to_ifaces [tb] = ifaces;
456 public static void AddUserType (string name, TypeBuilder t, TypeContainer tc)
458 builder_to_declspace.Add (t, tc);
459 typecontainers.Add (name, tc);
460 AddUserType (name, t);
463 public static void AddDelegateType (string name, TypeBuilder t, Delegate del)
468 HandleDuplicate (name, t);
471 builder_to_declspace.Add (t, del);
474 public static void AddEnumType (string name, TypeBuilder t, Enum en)
479 HandleDuplicate (name, t);
481 builder_to_declspace.Add (t, en);
484 public static void AddMethod (MethodBase builder, IMethodData method)
486 builder_to_method.Add (builder, method);
489 public static IMethodData GetMethod (MethodBase builder)
491 return (IMethodData) builder_to_method [builder];
495 /// Returns the DeclSpace whose Type is `t' or null if there is no
496 /// DeclSpace for `t' (ie, the Type comes from a library)
498 public static DeclSpace LookupDeclSpace (Type t)
500 return builder_to_declspace [t] as DeclSpace;
504 /// Returns the TypeContainer whose Type is `t' or null if there is no
505 /// TypeContainer for `t' (ie, the Type comes from a library)
507 public static TypeContainer LookupTypeContainer (Type t)
509 return builder_to_declspace [t] as TypeContainer;
512 public static MemberCache LookupMemberCache (Type t)
514 if (t is TypeBuilder) {
515 IMemberContainer container = builder_to_declspace [t] as IMemberContainer;
516 if (container != null)
517 return container.MemberCache;
520 return TypeHandle.GetMemberCache (t);
523 public static MemberCache LookupBaseInterfacesCache (Type t)
525 Type [] ifaces = t.GetInterfaces ();
527 if (ifaces != null && ifaces.Length == 1)
528 return LookupMemberCache (ifaces [0]);
530 // TODO: the builder_to_member_cache should be indexed by 'ifaces', not 't'
531 MemberCache cache = builder_to_member_cache [t] as MemberCache;
535 cache = new MemberCache (ifaces);
536 builder_to_member_cache.Add (t, cache);
540 public static TypeContainer LookupInterface (Type t)
542 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
543 if ((tc == null) || (tc.Kind != Kind.Interface))
549 public static Delegate LookupDelegate (Type t)
551 return builder_to_declspace [t] as Delegate;
554 public static Enum LookupEnum (Type t)
556 return builder_to_declspace [t] as Enum;
559 public static Class LookupClass (Type t)
561 return (Class) builder_to_declspace [t];
565 /// Registers an assembly to load types from.
567 public static void AddAssembly (Assembly a)
569 foreach (Assembly assembly in assemblies) {
574 int top = assemblies.Length;
575 Assembly [] n = new Assembly [top + 1];
577 assemblies.CopyTo (n, 0);
583 public static Assembly [] GetAssemblies ()
589 /// Registers a module builder to lookup types from
591 public static void AddModule (Module mb)
593 int top = modules != null ? modules.Length : 0;
594 Module [] n = new Module [top + 1];
597 modules.CopyTo (n, 0);
602 public static Module[] Modules {
608 static Hashtable references = new Hashtable ();
611 // Gets the reference to T version of the Type (T&)
613 public static Type GetReferenceType (Type t)
615 string tname = t.FullName + "&";
617 Type ret = t.Assembly.GetType (tname);
620 // If the type comes from the assembly we are building
621 // We need the Hashtable, because .NET 1.1 will return different instance types
622 // every time we call ModuleBuilder.GetType.
625 if (references [t] == null)
626 references [t] = CodeGen.Module.Builder.GetType (tname);
627 ret = (Type) references [t];
633 static Hashtable pointers = new Hashtable ();
636 // Gets the pointer to T version of the Type (T*)
638 public static Type GetPointerType (Type t)
640 string tname = t.FullName + "*";
642 Type ret = t.Assembly.GetType (tname);
645 // If the type comes from the assembly we are building
646 // We need the Hashtable, because .NET 1.1 will return different instance types
647 // every time we call ModuleBuilder.GetType.
650 if (pointers [t] == null)
651 pointers [t] = CodeGen.Module.Builder.GetType (tname);
653 ret = (Type) pointers [t];
660 // Low-level lookup, cache-less
662 static Type LookupTypeReflection (string name)
666 foreach (Assembly a in assemblies){
667 t = a.GetType (name);
672 TypeAttributes ta = t.Attributes & TypeAttributes.VisibilityMask;
673 if (ta == TypeAttributes.NotPublic ||
674 ta == TypeAttributes.NestedPrivate ||
675 ta == TypeAttributes.NestedAssembly ||
676 ta == TypeAttributes.NestedFamANDAssem){
679 // In .NET pointers turn out to be private, even if their
680 // element type is not
683 t = t.GetElementType ();
693 foreach (Module mb in modules) {
694 t = mb.GetType (name);
702 static Hashtable negative_hits = new Hashtable ();
705 // This function is used when you want to avoid the lookups, and want to go
706 // directly to the source. This will use the cache.
708 // Notice that bypassing the cache is bad, because on Microsoft.NET runtime
709 // GetType ("DynamicType[]") != GetType ("DynamicType[]"), and there is no
710 // way to test things other than doing a fullname compare
712 public static Type LookupTypeDirect (string name)
714 Type t = (Type) types [name];
718 if (negative_hits.Contains (name))
721 t = LookupTypeReflection (name);
724 negative_hits [name] = null;
731 static readonly char [] dot_array = { '.' };
734 /// Returns the Type associated with @name, takes care of the fact that
735 /// reflection expects nested types to be separated from the main type
736 /// with a "+" instead of a "."
738 public static Type LookupType (string name)
743 // First lookup in user defined and cached values
746 t = LookupTypeDirect (name);
750 string [] elements = name.Split (dot_array);
751 int count = elements.Length;
756 string top_level_type = elements [0];
759 t = LookupTypeDirect (top_level_type);
767 top_level_type = top_level_type + "." + elements [n++];
771 // We know that System.Object does not have children, and since its the base of
772 // all the objects, it always gets probed for inner classes.
774 if (top_level_type == "System.Object")
777 string nested_type = top_level_type + "+" + String.Join ("+", elements, n, count - n);
778 //Console.WriteLine ("Looking up: " + newt + " " + name);
780 t = LookupTypeDirect (nested_type);
782 // Cache the dotted version of the name too.
784 negative_hits [name] = null;
791 /// Computes the namespaces that we import from the assemblies we reference.
793 public static void ComputeNamespaces ()
795 MethodInfo assembly_get_namespaces = typeof (Assembly).GetMethod ("GetNamespaces", BindingFlags.Instance|BindingFlags.NonPublic);
798 // First add the assembly namespaces
800 if (assembly_get_namespaces != null){
801 int count = assemblies.Length;
803 for (int i = 0; i < count; i++){
804 Assembly a = assemblies [i];
805 string [] namespaces = (string []) assembly_get_namespaces.Invoke (a, null);
806 foreach (string ns in namespaces){
809 Namespace.LookupNamespace (ns, true);
813 Hashtable cache = new Hashtable ();
814 cache.Add ("", null);
815 foreach (Assembly a in assemblies) {
816 foreach (Type t in a.GetExportedTypes ()) {
817 string ns = t.Namespace;
818 if (ns == null || cache.Contains (ns))
821 Namespace.LookupNamespace (ns, true);
822 cache.Add (ns, null);
829 /// Fills static table with exported types from all referenced assemblies.
830 /// This information is required for CLS Compliance tests.
832 public static void LoadAllImportedTypes ()
834 all_imported_types = new Hashtable ();
835 foreach (Assembly a in assemblies) {
836 foreach (Type t in a.GetExportedTypes ()) {
837 all_imported_types [t.FullName] = t;
842 public static bool NamespaceClash (string name, Location loc)
844 if (Namespace.LookupNamespace (name, false) == null)
847 Report.Error (519, loc, String.Format ("`{0}' clashes with a predefined namespace", name));
852 /// Returns the C# name of a type if possible, or the full type name otherwise
854 static public string CSharpName (Type t)
856 return Regex.Replace (t.FullName,
858 @"(Int32|UInt32|Int16|UInt16|Int64|UInt64|" +
859 @"Single|Double|Char|Decimal|Byte|SByte|Object|" +
860 @"Boolean|String|Void|Null)" +
862 new MatchEvaluator (CSharpNameMatch)).Replace ('+', '.');
865 static public string CSharpName (Type[] types)
867 StringBuilder sb = new StringBuilder ();
868 foreach (Type t in types) {
869 sb.Append (CSharpName (t));
872 sb.Remove (sb.Length - 1, 1);
873 return sb.ToString ();
876 static String CSharpNameMatch (Match match)
878 string s = match.Groups [1].Captures [0].Value;
880 Replace ("int32", "int").
881 Replace ("uint32", "uint").
882 Replace ("int16", "short").
883 Replace ("uint16", "ushort").
884 Replace ("int64", "long").
885 Replace ("uint64", "ulong").
886 Replace ("single", "float").
887 Replace ("boolean", "bool")
888 + match.Groups [2].Captures [0].Value;
892 /// Returns the signature of the method with full namespace classification
894 static public string GetFullNameSignature (MemberInfo mi)
896 // Unfortunately, there's no dynamic dispatch on the arguments of a function.
897 return (mi is MethodBase)
898 ? GetFullNameSignature (mi as MethodBase)
899 : mi.DeclaringType.FullName.Replace ('+', '.') + '.' + mi.Name;
902 static public string GetFullNameSignature (MethodBase mb)
904 string name = mb.Name;
906 name = mb.DeclaringType.Name;
908 if (mb.IsSpecialName) {
909 if (name.StartsWith ("get_") || name.StartsWith ("set_")) {
910 name = name.Remove (0, 4);
917 return mb.DeclaringType.FullName.Replace ('+', '.') + '.' + name;
921 /// Returns the signature of the property and indexer
923 static public string CSharpSignature (PropertyBuilder pb, bool is_indexer)
926 return GetFullNameSignature (pb);
929 MethodBase mb = pb.GetSetMethod (true) != null ? pb.GetSetMethod (true) : pb.GetGetMethod (true);
930 string signature = GetFullNameSignature (mb);
931 string arg = GetParameterData (mb).ParameterDesc (0);
932 return String.Format ("{0}.this[{1}]", signature.Substring (0, signature.LastIndexOf ('.')), arg);
936 /// Returns the signature of the method
938 static public string CSharpSignature (MethodBase mb)
940 StringBuilder sig = new StringBuilder ("(");
942 ParameterData iparams = GetParameterData (mb);
945 if (mb.IsSpecialName && iparams.Count == 0 && !mb.IsConstructor)
946 return GetFullNameSignature (mb);
948 for (int i = 0; i < iparams.Count; i++) {
952 sig.Append (iparams.ParameterDesc (i));
957 if (mb.IsSpecialName && iparams.Count == 1 && !mb.IsConstructor) {
958 sig.Replace ('(', '[');
959 sig.Replace (')', ']');
962 return GetFullNameSignature (mb) + sig.ToString ();
966 /// Looks up a type, and aborts if it is not found. This is used
967 /// by types required by the compiler
969 static Type CoreLookupType (string name)
971 Type t = LookupTypeDirect (name);
974 Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
975 Environment.Exit (1);
982 /// Returns the MethodInfo for a method named `name' defined
983 /// in type `t' which takes arguments of types `args'
985 static MethodInfo GetMethod (Type t, string name, Type [] args, bool is_private, bool report_errors)
989 BindingFlags flags = instance_and_static | BindingFlags.Public;
995 flags |= BindingFlags.NonPublic;
997 list = FindMembers (t, MemberTypes.Method, flags, signature_filter, sig);
998 if (list.Count == 0) {
1000 Report.Error (-19, "Can not find the core function `" + name + "'");
1004 MethodInfo mi = list [0] as MethodInfo;
1007 Report.Error (-19, "Can not find the core function `" + name + "'");
1014 static MethodInfo GetMethod (Type t, string name, Type [] args, bool report_errors)
1016 return GetMethod (t, name, args, false, report_errors);
1019 static MethodInfo GetMethod (Type t, string name, Type [] args)
1021 return GetMethod (t, name, args, true);
1026 /// Returns the ConstructorInfo for "args"
1028 static ConstructorInfo GetConstructor (Type t, Type [] args)
1036 list = FindMembers (t, MemberTypes.Constructor,
1037 instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly,
1038 signature_filter, sig);
1039 if (list.Count == 0){
1040 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
1044 ConstructorInfo ci = list [0] as ConstructorInfo;
1046 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
1053 public static void InitEnumUnderlyingTypes ()
1056 int32_type = CoreLookupType ("System.Int32");
1057 int64_type = CoreLookupType ("System.Int64");
1058 uint32_type = CoreLookupType ("System.UInt32");
1059 uint64_type = CoreLookupType ("System.UInt64");
1060 byte_type = CoreLookupType ("System.Byte");
1061 sbyte_type = CoreLookupType ("System.SByte");
1062 short_type = CoreLookupType ("System.Int16");
1063 ushort_type = CoreLookupType ("System.UInt16");
1067 /// The types have to be initialized after the initial
1068 /// population of the type has happened (for example, to
1069 /// bootstrap the corlib.dll
1071 public static void InitCoreTypes ()
1073 object_type = CoreLookupType ("System.Object");
1074 value_type = CoreLookupType ("System.ValueType");
1076 InitEnumUnderlyingTypes ();
1078 char_type = CoreLookupType ("System.Char");
1079 string_type = CoreLookupType ("System.String");
1080 float_type = CoreLookupType ("System.Single");
1081 double_type = CoreLookupType ("System.Double");
1082 char_ptr_type = CoreLookupType ("System.Char*");
1083 decimal_type = CoreLookupType ("System.Decimal");
1084 bool_type = CoreLookupType ("System.Boolean");
1085 enum_type = CoreLookupType ("System.Enum");
1087 multicast_delegate_type = CoreLookupType ("System.MulticastDelegate");
1088 delegate_type = CoreLookupType ("System.Delegate");
1090 array_type = CoreLookupType ("System.Array");
1091 void_type = CoreLookupType ("System.Void");
1092 type_type = CoreLookupType ("System.Type");
1094 runtime_field_handle_type = CoreLookupType ("System.RuntimeFieldHandle");
1095 runtime_argument_handle_type = CoreLookupType ("System.RuntimeArgumentHandle");
1096 runtime_helpers_type = CoreLookupType ("System.Runtime.CompilerServices.RuntimeHelpers");
1097 default_member_type = CoreLookupType ("System.Reflection.DefaultMemberAttribute");
1098 runtime_handle_type = CoreLookupType ("System.RuntimeTypeHandle");
1099 asynccallback_type = CoreLookupType ("System.AsyncCallback");
1100 iasyncresult_type = CoreLookupType ("System.IAsyncResult");
1101 ienumerator_type = CoreLookupType ("System.Collections.IEnumerator");
1102 ienumerable_type = CoreLookupType ("System.Collections.IEnumerable");
1103 idisposable_type = CoreLookupType ("System.IDisposable");
1104 icloneable_type = CoreLookupType ("System.ICloneable");
1105 iconvertible_type = CoreLookupType ("System.IConvertible");
1106 monitor_type = CoreLookupType ("System.Threading.Monitor");
1107 intptr_type = CoreLookupType ("System.IntPtr");
1109 attribute_type = CoreLookupType ("System.Attribute");
1110 attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
1111 dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
1112 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
1113 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
1114 param_array_type = CoreLookupType ("System.ParamArrayAttribute");
1115 in_attribute_type = CoreLookupType ("System.Runtime.InteropServices.InAttribute");
1116 out_attribute_type = CoreLookupType ("System.Runtime.InteropServices.OutAttribute");
1117 typed_reference_type = CoreLookupType ("System.TypedReference");
1118 arg_iterator_type = CoreLookupType ("System.ArgIterator");
1119 mbr_type = CoreLookupType ("System.MarshalByRefObject");
1120 decimal_constant_attribute_type = CoreLookupType ("System.Runtime.CompilerServices.DecimalConstantAttribute");
1123 // Sigh. Remove this before the release. Wonder what versions of Mono
1124 // people are running.
1126 guid_attr_type = LookupType ("System.Runtime.InteropServices.GuidAttribute");
1128 unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
1130 void_ptr_type = CoreLookupType ("System.Void*");
1132 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
1134 exception_type = CoreLookupType ("System.Exception");
1135 invalid_operation_exception_type = CoreLookupType ("System.InvalidOperationException");
1136 not_supported_exception_type = CoreLookupType ("System.NotSupportedException");
1141 obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
1142 conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
1143 cls_compliant_attribute_type = CoreLookupType ("System.CLSCompliantAttribute");
1144 struct_layout_attribute_type = CoreLookupType ("System.Runtime.InteropServices.StructLayoutAttribute");
1145 field_offset_attribute_type = CoreLookupType ("System.Runtime.InteropServices.FieldOffsetAttribute");
1146 security_attr_type = CoreLookupType ("System.Security.Permissions.SecurityAttribute");
1152 compiler_generated_attr_type = CoreLookupType ("System.Runtime.CompilerServices.CompilerGeneratedAttribute");
1153 fixed_buffer_attr_type = CoreLookupType ("System.Runtime.CompilerServices.FixedBufferAttribute");
1156 // When compiling corlib, store the "real" types here.
1158 if (!RootContext.StdLib) {
1159 system_int32_type = typeof (System.Int32);
1160 system_array_type = typeof (System.Array);
1161 system_type_type = typeof (System.Type);
1162 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
1164 Type [] void_arg = { };
1165 system_int_array_get_length = GetMethod (
1166 system_array_type, "get_Length", void_arg);
1167 system_int_array_get_rank = GetMethod (
1168 system_array_type, "get_Rank", void_arg);
1169 system_object_array_clone = GetMethod (
1170 system_array_type, "Clone", void_arg);
1172 Type [] system_int_arg = { system_int32_type };
1173 system_int_array_get_length_int = GetMethod (
1174 system_array_type, "GetLength", system_int_arg);
1175 system_int_array_get_upper_bound_int = GetMethod (
1176 system_array_type, "GetUpperBound", system_int_arg);
1177 system_int_array_get_lower_bound_int = GetMethod (
1178 system_array_type, "GetLowerBound", system_int_arg);
1180 Type [] system_array_int_arg = { system_array_type, system_int32_type };
1181 system_void_array_copyto_array_int = GetMethod (
1182 system_array_type, "CopyTo", system_array_int_arg);
1184 Type [] system_3_type_arg = {
1185 system_type_type, system_type_type, system_type_type };
1186 Type [] system_4_type_arg = {
1187 system_type_type, system_type_type, system_type_type, system_type_type };
1189 MethodInfo set_corlib_type_builders = GetMethod (
1190 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1191 system_4_type_arg, true, false);
1193 if (set_corlib_type_builders != null) {
1194 object[] args = new object [4];
1195 args [0] = object_type;
1196 args [1] = value_type;
1197 args [2] = enum_type;
1198 args [3] = void_type;
1200 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1202 // Compatibility for an older version of the class libs.
1203 set_corlib_type_builders = GetMethod (
1204 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1205 system_3_type_arg, true, true);
1207 if (set_corlib_type_builders == null) {
1208 Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
1212 object[] args = new object [3];
1213 args [0] = object_type;
1214 args [1] = value_type;
1215 args [2] = enum_type;
1217 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1221 system_object_expr.Type = object_type;
1222 system_string_expr.Type = string_type;
1223 system_boolean_expr.Type = bool_type;
1224 system_decimal_expr.Type = decimal_type;
1225 system_single_expr.Type = float_type;
1226 system_double_expr.Type = double_type;
1227 system_sbyte_expr.Type = sbyte_type;
1228 system_byte_expr.Type = byte_type;
1229 system_int16_expr.Type = short_type;
1230 system_uint16_expr.Type = ushort_type;
1231 system_int32_expr.Type = int32_type;
1232 system_uint32_expr.Type = uint32_type;
1233 system_int64_expr.Type = int64_type;
1234 system_uint64_expr.Type = uint64_type;
1235 system_char_expr.Type = char_type;
1236 system_void_expr.Type = void_type;
1237 system_asynccallback_expr.Type = asynccallback_type;
1238 system_iasyncresult_expr.Type = iasyncresult_type;
1239 system_valuetype_expr.Type = value_type;
1242 // These are only used for compare purposes
1244 anonymous_method_type = typeof (AnonymousMethod);
1245 null_type = typeof (NullType);
1249 // The helper methods that are used by the compiler
1251 public static void InitCodeHelpers ()
1254 // Now load the default methods that we use.
1256 Type [] string_string = { string_type, string_type };
1257 string_concat_string_string = GetMethod (
1258 string_type, "Concat", string_string);
1259 Type [] string_string_string = { string_type, string_type, string_type };
1260 string_concat_string_string_string = GetMethod (
1261 string_type, "Concat", string_string_string);
1262 Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
1263 string_concat_string_string_string_string = GetMethod (
1264 string_type, "Concat", string_string_string_string);
1265 Type[] params_string = { TypeManager.LookupTypeDirect ("System.String[]") };
1266 string_concat_string_dot_dot_dot = GetMethod (
1267 string_type, "Concat", params_string);
1269 Type [] object_object = { object_type, object_type };
1270 string_concat_object_object = GetMethod (
1271 string_type, "Concat", object_object);
1272 Type [] object_object_object = { object_type, object_type, object_type };
1273 string_concat_object_object_object = GetMethod (
1274 string_type, "Concat", object_object_object);
1275 Type[] params_object = { TypeManager.LookupTypeDirect ("System.Object[]") };
1276 string_concat_object_dot_dot_dot = GetMethod (
1277 string_type, "Concat", params_object);
1279 Type [] string_ = { string_type };
1280 string_isinterneted_string = GetMethod (
1281 string_type, "IsInterned", string_);
1283 Type [] runtime_type_handle = { runtime_handle_type };
1284 system_type_get_type_from_handle = GetMethod (
1285 type_type, "GetTypeFromHandle", runtime_type_handle);
1287 Type [] delegate_delegate = { delegate_type, delegate_type };
1288 delegate_combine_delegate_delegate = GetMethod (
1289 delegate_type, "Combine", delegate_delegate);
1291 delegate_remove_delegate_delegate = GetMethod (
1292 delegate_type, "Remove", delegate_delegate);
1297 Type [] void_arg = { };
1298 object_getcurrent_void = GetMethod (
1299 ienumerator_type, "get_Current", void_arg);
1300 bool_movenext_void = GetMethod (
1301 ienumerator_type, "MoveNext", void_arg);
1302 void_reset_void = GetMethod (
1303 ienumerator_type, "Reset", void_arg);
1304 void_dispose_void = GetMethod (
1305 idisposable_type, "Dispose", void_arg);
1306 int_get_offset_to_string_data = GetMethod (
1307 runtime_helpers_type, "get_OffsetToStringData", void_arg);
1308 int_array_get_length = GetMethod (
1309 array_type, "get_Length", void_arg);
1310 int_array_get_rank = GetMethod (
1311 array_type, "get_Rank", void_arg);
1312 ienumerable_getenumerator_void = GetMethod (
1313 ienumerable_type, "GetEnumerator", void_arg);
1318 Type [] int_arg = { int32_type };
1319 int_array_get_length_int = GetMethod (
1320 array_type, "GetLength", int_arg);
1321 int_array_get_upper_bound_int = GetMethod (
1322 array_type, "GetUpperBound", int_arg);
1323 int_array_get_lower_bound_int = GetMethod (
1324 array_type, "GetLowerBound", int_arg);
1327 // System.Array methods
1329 object_array_clone = GetMethod (
1330 array_type, "Clone", void_arg);
1331 Type [] array_int_arg = { array_type, int32_type };
1332 void_array_copyto_array_int = GetMethod (
1333 array_type, "CopyTo", array_int_arg);
1338 Type [] object_arg = { object_type };
1339 void_monitor_enter_object = GetMethod (
1340 monitor_type, "Enter", object_arg);
1341 void_monitor_exit_object = GetMethod (
1342 monitor_type, "Exit", object_arg);
1344 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1346 void_initializearray_array_fieldhandle = GetMethod (
1347 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1352 int_getlength_int = GetMethod (
1353 array_type, "GetLength", int_arg);
1356 // Decimal constructors
1358 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1359 void_decimal_ctor_five_args = GetConstructor (
1360 decimal_type, dec_arg);
1362 void_decimal_ctor_int_arg = GetConstructor (decimal_type, int_arg);
1367 cons_param_array_attribute = GetConstructor (param_array_type, void_arg);
1368 unverifiable_code_ctor = GetConstructor (unverifiable_code_type, void_arg);
1369 default_member_ctor = GetConstructor (default_member_type, string_);
1371 Type[] short_arg = { short_type };
1372 struct_layout_attribute_ctor = GetConstructor (struct_layout_attribute_type, short_arg);
1374 decimal_constant_attribute_ctor = GetConstructor (decimal_constant_attribute_type, new Type []
1375 { byte_type, byte_type, uint32_type, uint32_type, uint32_type } );
1382 compiler_generated_attr = new CustomAttributeBuilder (
1383 GetConstructor (compiler_generated_attr_type, void_arg), new object[0]);
1385 Type[] type_int_arg = { type_type, int32_type };
1386 fixed_buffer_attr_ctor = GetConstructor (fixed_buffer_attr_type, type_int_arg);
1390 object_ctor = GetConstructor (object_type, void_arg);
1394 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1397 /// This is the "old", non-cache based FindMembers() function. We cannot use
1398 /// the cache here because there is no member name argument.
1400 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1401 MemberFilter filter, object criteria)
1403 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1406 // `builder_to_declspace' contains all dynamic types.
1410 Timer.StartTimer (TimerType.FindMembers);
1411 list = decl.FindMembers (mt, bf, filter, criteria);
1412 Timer.StopTimer (TimerType.FindMembers);
1417 // We have to take care of arrays specially, because GetType on
1418 // a TypeBuilder array will return a Type, not a TypeBuilder,
1419 // and we can not call FindMembers on this type.
1421 if (t.IsSubclassOf (TypeManager.array_type))
1422 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1425 // Since FindMembers will not lookup both static and instance
1426 // members, we emulate this behaviour here.
1428 if ((bf & instance_and_static) == instance_and_static){
1429 MemberInfo [] i_members = t.FindMembers (
1430 mt, bf & ~BindingFlags.Static, filter, criteria);
1432 int i_len = i_members.Length;
1434 MemberInfo one = i_members [0];
1437 // If any of these are present, we are done!
1439 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1440 return new MemberList (i_members);
1443 MemberInfo [] s_members = t.FindMembers (
1444 mt, bf & ~BindingFlags.Instance, filter, criteria);
1446 int s_len = s_members.Length;
1447 if (i_len > 0 || s_len > 0)
1448 return new MemberList (i_members, s_members);
1451 return new MemberList (i_members);
1453 return new MemberList (s_members);
1457 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1462 /// This method is only called from within MemberLookup. It tries to use the member
1463 /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
1464 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1465 /// our return value will already contain all inherited members and the caller don't need
1466 /// to check base classes and interfaces anymore.
1468 private static MemberInfo [] MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1469 string name, out bool used_cache)
1474 // We have to take care of arrays specially, because GetType on
1475 // a TypeBuilder array will return a Type, not a TypeBuilder,
1476 // and we can not call FindMembers on this type.
1478 if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
1480 return TypeHandle.ArrayType.MemberCache.FindMembers (
1481 mt, bf, name, FilterWithClosure_delegate, null);
1485 // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
1486 // and we can ask the DeclSpace for the MemberCache.
1488 if (t is TypeBuilder) {
1489 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1490 cache = decl.MemberCache;
1493 // If this DeclSpace has a MemberCache, use it.
1496 if (cache != null) {
1498 return cache.FindMembers (
1499 mt, bf, name, FilterWithClosure_delegate, null);
1502 // If there is no MemberCache, we need to use the "normal" FindMembers.
1503 // Note, this is a VERY uncommon route!
1506 Timer.StartTimer (TimerType.FindMembers);
1507 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
1508 FilterWithClosure_delegate, name);
1509 Timer.StopTimer (TimerType.FindMembers);
1512 return (MemberInfo []) list;
1516 // This call will always succeed. There is exactly one TypeHandle instance per
1517 // type, TypeHandle.GetMemberCache() will, if necessary, create a new one, and return
1518 // the corresponding MemberCache.
1520 cache = TypeHandle.GetMemberCache (t);
1523 return cache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1526 public static bool IsBuiltinType (Type t)
1528 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1529 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1530 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1531 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
1537 public static bool IsBuiltinType (TypeContainer tc)
1539 return IsBuiltinType (tc.TypeBuilder);
1543 // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
1544 // the pieces in the code where we use IsBuiltinType and special case decimal_type.
1546 public static bool IsCLRType (Type t)
1548 if (t == object_type || t == int32_type || t == uint32_type ||
1549 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1550 t == char_type || t == short_type || t == bool_type ||
1551 t == sbyte_type || t == byte_type || t == ushort_type)
1557 public static bool IsDelegateType (Type t)
1559 if (t.IsSubclassOf (TypeManager.delegate_type))
1565 public static bool IsEnumType (Type t)
1567 if (t.IsSubclassOf (TypeManager.enum_type))
1572 public static bool IsBuiltinOrEnum (Type t)
1574 if (IsBuiltinType (t))
1584 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1586 public static bool IsUnmanagedType (Type t)
1588 if (IsBuiltinType (t) && t != TypeManager.string_type)
1597 if (IsValueType (t)){
1598 if (t is TypeBuilder){
1599 TypeContainer tc = LookupTypeContainer (t);
1601 if (tc.Fields != null){
1602 foreach (Field f in tc.Fields){
1603 if (f.FieldBuilder.IsStatic)
1605 if (!IsUnmanagedType (f.FieldBuilder.FieldType))
1611 FieldInfo [] fields = t.GetFields ();
1613 foreach (FieldInfo f in fields){
1616 if (!IsUnmanagedType (f.FieldType))
1626 public static bool IsValueType (Type t)
1628 if (t.IsSubclassOf (TypeManager.value_type) && (t != TypeManager.enum_type))
1634 public static bool IsInterfaceType (Type t)
1636 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
1640 return tc.Kind == Kind.Interface;
1643 public static bool IsSubclassOf (Type type, Type base_type)
1646 if (type.Equals (base_type))
1649 type = type.BaseType;
1650 } while (type != null);
1655 public static bool IsFamilyAccessible (Type type, Type base_type)
1657 return IsSubclassOf (type, base_type);
1661 // Checks whether `type' is a subclass or nested child of `base_type'.
1663 public static bool IsNestedFamilyAccessible (Type type, Type base_type)
1666 if ((type == base_type) || type.IsSubclassOf (base_type))
1669 // Handle nested types.
1670 type = type.DeclaringType;
1671 } while (type != null);
1677 // Checks whether `type' is a nested child of `parent'.
1679 public static bool IsNestedChildOf (Type type, Type parent)
1684 type = type.DeclaringType;
1685 while (type != null) {
1689 type = type.DeclaringType;
1696 // Do the right thing when returning the element type of an
1697 // array type based on whether we are compiling corlib or not
1699 public static Type GetElementType (Type t)
1701 if (RootContext.StdLib)
1702 return t.GetElementType ();
1704 return TypeToCoreType (t.GetElementType ());
1708 /// This method is not implemented by MS runtime for dynamic types
1710 public static bool HasElementType (Type t)
1712 return t.IsArray || t.IsPointer || t.IsByRef;
1716 /// Returns the User Defined Types
1718 public static ArrayList UserTypes {
1724 public static Hashtable TypeContainers {
1726 return typecontainers;
1730 static Hashtable builder_to_constant;
1732 public static void RegisterConstant (FieldBuilder fb, Const c)
1734 if (builder_to_constant == null)
1735 builder_to_constant = new PtrHashtable ();
1737 if (builder_to_constant.Contains (fb))
1740 builder_to_constant.Add (fb, c);
1743 public static Const LookupConstant (FieldBuilder fb)
1745 if (builder_to_constant == null)
1748 return (Const) builder_to_constant [fb];
1752 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1756 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1757 /// for anything which is dynamic, and we need this in a number of places,
1758 /// we register this information here, and use it afterwards.
1760 static public void RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1765 method_arguments.Add (mb, args);
1766 method_params.Add (mb, ip);
1769 static public ParameterData GetParameterData (MethodBase mb)
1771 object pd = method_params [mb];
1773 if (mb is MethodBuilder || mb is ConstructorBuilder)
1774 throw new InternalErrorException ("Argument for Method not registered" + mb);
1776 method_params [mb] = pd = new ReflectionParameters (mb);
1779 return (ParameterData) pd;
1783 /// Returns the argument types for a method based on its methodbase
1785 /// For dynamic methods, we use the compiler provided types, for
1786 /// methods from existing assemblies we load them from GetParameters,
1787 /// and insert them into the cache
1789 static public Type [] GetArgumentTypes (MethodBase mb)
1791 object t = method_arguments [mb];
1795 ParameterInfo [] pi = mb.GetParameters ();
1802 types = new Type [c];
1803 for (int i = 0; i < c; i++)
1804 types [i] = pi [i].ParameterType;
1806 method_arguments.Add (mb, types);
1811 /// Returns the argument types for an indexer based on its PropertyInfo
1813 /// For dynamic indexers, we use the compiler provided types, for
1814 /// indexers from existing assemblies we load them from GetParameters,
1815 /// and insert them into the cache
1817 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1819 if (indexer_arguments.Contains (indexer))
1820 return (Type []) indexer_arguments [indexer];
1821 else if (indexer is PropertyBuilder)
1822 // If we're a PropertyBuilder and not in the
1823 // `indexer_arguments' hash, then we're a property and
1827 ParameterInfo [] pi = indexer.GetIndexParameters ();
1828 // Property, not an indexer.
1832 Type [] types = new Type [c];
1834 for (int i = 0; i < c; i++)
1835 types [i] = pi [i].ParameterType;
1837 indexer_arguments.Add (indexer, types);
1843 // This is a workaround the fact that GetValue is not
1844 // supported for dynamic types
1846 static Hashtable fields = new Hashtable ();
1847 static public bool RegisterFieldValue (FieldBuilder fb, object value)
1849 if (fields.Contains (fb))
1852 fields.Add (fb, value);
1857 static public object GetValue (FieldBuilder fb)
1862 static Hashtable fieldbuilders_to_fields = new Hashtable ();
1863 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1865 if (fieldbuilders_to_fields.Contains (fb))
1868 fieldbuilders_to_fields.Add (fb, f);
1873 // The return value can be null; This will be the case for
1874 // auxiliary FieldBuilders created by the compiler that have no
1875 // real field being declared on the source code
1877 static public FieldBase GetField (FieldInfo fb)
1879 return (FieldBase) fieldbuilders_to_fields [fb];
1882 static Hashtable events;
1884 static public void RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1887 events = new Hashtable ();
1889 if (!events.Contains (eb)) {
1890 events.Add (eb, new Pair (add, remove));
1894 static public MethodInfo GetAddMethod (EventInfo ei)
1896 if (ei is MyEventBuilder) {
1897 Pair pair = (Pair) events [ei];
1899 return (MethodInfo) pair.First;
1901 return ei.GetAddMethod (true);
1904 static public MethodInfo GetRemoveMethod (EventInfo ei)
1906 if (ei is MyEventBuilder) {
1907 Pair pair = (Pair) events [ei];
1909 return (MethodInfo) pair.Second;
1911 return ei.GetRemoveMethod (true);
1914 static Hashtable priv_fields_events;
1916 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1918 if (priv_fields_events == null)
1919 priv_fields_events = new Hashtable ();
1921 if (priv_fields_events.Contains (einfo))
1924 priv_fields_events.Add (einfo, builder);
1929 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1931 if (priv_fields_events == null)
1934 return (MemberInfo) priv_fields_events [ei];
1937 static Hashtable properties;
1939 static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase set)
1941 if (properties == null)
1942 properties = new Hashtable ();
1944 if (properties.Contains (pb))
1947 properties.Add (pb, new Pair (get, set));
1952 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get,
1953 MethodBase set, Type[] args)
1955 if (!RegisterProperty (pb, get,set))
1958 indexer_arguments.Add (pb, args);
1963 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen)
1965 Hashtable hash = new Hashtable ();
1966 return CheckStructCycles (tc, seen, hash);
1969 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen,
1972 if ((tc.Kind != Kind.Struct) || IsBuiltinType (tc))
1976 // `seen' contains all types we've already visited.
1978 if (seen.Contains (tc))
1980 seen.Add (tc, null);
1982 if (tc.Fields == null)
1985 foreach (FieldMember field in tc.Fields) {
1986 if (field.FieldBuilder == null || field.FieldBuilder.IsStatic)
1989 Type ftype = field.FieldBuilder.FieldType;
1990 TypeContainer ftc = LookupTypeContainer (ftype);
1994 if (hash.Contains (ftc)) {
1995 Report.Error (523, tc.Location,
1996 "Struct member `{0}.{1}' of type `{2}' " +
1997 "causes a cycle in the struct layout",
1998 tc.Name, field.Name, ftc.Name);
2003 // `hash' contains all types in the current path.
2005 hash.Add (tc, null);
2007 bool ok = CheckStructCycles (ftc, seen, hash);
2014 if (!seen.Contains (ftc))
2015 seen.Add (ftc, null);
2022 /// Given an array of interface types, expand and eliminate repeated ocurrences
2023 /// of an interface.
2027 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
2030 public static Type[] ExpandInterfaces (EmitContext ec, TypeExpr [] base_interfaces)
2032 ArrayList new_ifaces = new ArrayList ();
2034 foreach (TypeExpr iface in base_interfaces){
2035 Type itype = iface.ResolveType (ec);
2039 if (!new_ifaces.Contains (itype))
2040 new_ifaces.Add (itype);
2042 Type [] implementing = itype.GetInterfaces ();
2044 foreach (Type imp in implementing){
2045 if (!new_ifaces.Contains (imp))
2046 new_ifaces.Add (imp);
2049 Type [] ret = new Type [new_ifaces.Count];
2050 new_ifaces.CopyTo (ret, 0);
2054 static PtrHashtable iface_cache = new PtrHashtable ();
2057 /// This function returns the interfaces in the type `t'. Works with
2058 /// both types and TypeBuilders.
2060 public static Type [] GetInterfaces (Type t)
2063 Type [] cached = iface_cache [t] as Type [];
2068 // The reason for catching the Array case is that Reflection.Emit
2069 // will not return a TypeBuilder for Array types of TypeBuilder types,
2070 // but will still throw an exception if we try to call GetInterfaces
2073 // Since the array interfaces are always constant, we return those for
2078 t = TypeManager.array_type;
2080 if (t is TypeBuilder){
2081 Type [] base_ifaces;
2083 if (t.BaseType == null)
2084 base_ifaces = NoTypes;
2086 base_ifaces = GetInterfaces (t.BaseType);
2087 Type [] type_ifaces = (Type []) builder_to_ifaces [t];
2088 if (type_ifaces == null)
2089 type_ifaces = NoTypes;
2091 int base_count = base_ifaces.Length;
2092 Type [] result = new Type [base_count + type_ifaces.Length];
2093 base_ifaces.CopyTo (result, 0);
2094 type_ifaces.CopyTo (result, base_count);
2096 iface_cache [t] = result;
2099 Type[] ifaces = t.GetInterfaces ();
2100 iface_cache [t] = ifaces;
2106 // gets the interfaces that are declared explicitly on t
2108 public static Type [] GetExplicitInterfaces (TypeBuilder t)
2110 return (Type []) builder_to_ifaces [t];
2114 /// The following is used to check if a given type implements an interface.
2115 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
2117 public static bool ImplementsInterface (Type t, Type iface)
2122 // FIXME OPTIMIZATION:
2123 // as soon as we hit a non-TypeBuiler in the interface
2124 // chain, we could return, as the `Type.GetInterfaces'
2125 // will return all the interfaces implement by the type
2129 interfaces = GetInterfaces (t);
2131 if (interfaces != null){
2132 foreach (Type i in interfaces){
2139 } while (t != null);
2144 static NumberFormatInfo nf_provider = CultureInfo.CurrentCulture.NumberFormat;
2146 // This is a custom version of Convert.ChangeType() which works
2147 // with the TypeBuilder defined types when compiling corlib.
2148 public static object ChangeType (object value, Type conversionType, out bool error)
2150 IConvertible convert_value = value as IConvertible;
2152 if (convert_value == null){
2158 // We must use Type.Equals() here since `conversionType' is
2159 // the TypeBuilder created version of a system type and not
2160 // the system type itself. You cannot use Type.GetTypeCode()
2161 // on such a type - it'd always return TypeCode.Object.
2165 if (conversionType.Equals (typeof (Boolean)))
2166 return (object)(convert_value.ToBoolean (nf_provider));
2167 else if (conversionType.Equals (typeof (Byte)))
2168 return (object)(convert_value.ToByte (nf_provider));
2169 else if (conversionType.Equals (typeof (Char)))
2170 return (object)(convert_value.ToChar (nf_provider));
2171 else if (conversionType.Equals (typeof (DateTime)))
2172 return (object)(convert_value.ToDateTime (nf_provider));
2173 else if (conversionType.Equals (TypeManager.decimal_type)) // typeof (Decimal)))
2174 return (object)(convert_value.ToDecimal (nf_provider));
2175 else if (conversionType.Equals (typeof (Double)))
2176 return (object)(convert_value.ToDouble (nf_provider));
2177 else if (conversionType.Equals (typeof (Int16)))
2178 return (object)(convert_value.ToInt16 (nf_provider));
2179 else if (conversionType.Equals (typeof (Int32)))
2180 return (object)(convert_value.ToInt32 (nf_provider));
2181 else if (conversionType.Equals (typeof (Int64)))
2182 return (object)(convert_value.ToInt64 (nf_provider));
2183 else if (conversionType.Equals (typeof (SByte)))
2184 return (object)(convert_value.ToSByte (nf_provider));
2185 else if (conversionType.Equals (typeof (Single)))
2186 return (object)(convert_value.ToSingle (nf_provider));
2187 else if (conversionType.Equals (typeof (String)))
2188 return (object)(convert_value.ToString (nf_provider));
2189 else if (conversionType.Equals (typeof (UInt16)))
2190 return (object)(convert_value.ToUInt16 (nf_provider));
2191 else if (conversionType.Equals (typeof (UInt32)))
2192 return (object)(convert_value.ToUInt32 (nf_provider));
2193 else if (conversionType.Equals (typeof (UInt64)))
2194 return (object)(convert_value.ToUInt64 (nf_provider));
2195 else if (conversionType.Equals (typeof (Object)))
2196 return (object)(value);
2206 // This is needed, because enumerations from assemblies
2207 // do not report their underlyingtype, but they report
2210 public static Type EnumToUnderlying (Type t)
2212 if (t == TypeManager.enum_type)
2215 t = t.UnderlyingSystemType;
2216 if (!TypeManager.IsEnumType (t))
2219 if (t is TypeBuilder) {
2220 // slow path needed to compile corlib
2221 if (t == TypeManager.bool_type ||
2222 t == TypeManager.byte_type ||
2223 t == TypeManager.sbyte_type ||
2224 t == TypeManager.char_type ||
2225 t == TypeManager.short_type ||
2226 t == TypeManager.ushort_type ||
2227 t == TypeManager.int32_type ||
2228 t == TypeManager.uint32_type ||
2229 t == TypeManager.int64_type ||
2230 t == TypeManager.uint64_type)
2232 throw new Exception ("Unhandled typecode in enum " + " from " + t.AssemblyQualifiedName);
2234 TypeCode tc = Type.GetTypeCode (t);
2237 case TypeCode.Boolean:
2238 return TypeManager.bool_type;
2240 return TypeManager.byte_type;
2241 case TypeCode.SByte:
2242 return TypeManager.sbyte_type;
2244 return TypeManager.char_type;
2245 case TypeCode.Int16:
2246 return TypeManager.short_type;
2247 case TypeCode.UInt16:
2248 return TypeManager.ushort_type;
2249 case TypeCode.Int32:
2250 return TypeManager.int32_type;
2251 case TypeCode.UInt32:
2252 return TypeManager.uint32_type;
2253 case TypeCode.Int64:
2254 return TypeManager.int64_type;
2255 case TypeCode.UInt64:
2256 return TypeManager.uint64_type;
2258 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
2262 // When compiling corlib and called with one of the core types, return
2263 // the corresponding typebuilder for that type.
2265 public static Type TypeToCoreType (Type t)
2267 if (RootContext.StdLib || (t is TypeBuilder))
2270 TypeCode tc = Type.GetTypeCode (t);
2273 case TypeCode.Boolean:
2274 return TypeManager.bool_type;
2276 return TypeManager.byte_type;
2277 case TypeCode.SByte:
2278 return TypeManager.sbyte_type;
2280 return TypeManager.char_type;
2281 case TypeCode.Int16:
2282 return TypeManager.short_type;
2283 case TypeCode.UInt16:
2284 return TypeManager.ushort_type;
2285 case TypeCode.Int32:
2286 return TypeManager.int32_type;
2287 case TypeCode.UInt32:
2288 return TypeManager.uint32_type;
2289 case TypeCode.Int64:
2290 return TypeManager.int64_type;
2291 case TypeCode.UInt64:
2292 return TypeManager.uint64_type;
2293 case TypeCode.Single:
2294 return TypeManager.float_type;
2295 case TypeCode.Double:
2296 return TypeManager.double_type;
2297 case TypeCode.String:
2298 return TypeManager.string_type;
2299 case TypeCode.Decimal:
2300 return TypeManager.decimal_type;
2302 if (t == typeof (void))
2303 return TypeManager.void_type;
2304 if (t == typeof (object))
2305 return TypeManager.object_type;
2306 if (t == typeof (System.Type))
2307 return TypeManager.type_type;
2308 if (t == typeof (System.IntPtr))
2309 return TypeManager.intptr_type;
2315 /// Utility function that can be used to probe whether a type
2316 /// is managed or not.
2318 public static bool VerifyUnManaged (Type t, Location loc)
2320 if (t.IsValueType || t.IsPointer){
2322 // FIXME: this is more complex, we actually need to
2323 // make sure that the type does not contain any
2329 if (!RootContext.StdLib && (t == TypeManager.decimal_type))
2330 // We need this explicit check here to make it work when
2331 // compiling corlib.
2336 "Cannot take the address or size of a variable of a managed type ('" +
2337 CSharpName (t) + "')");
2342 /// Returns the name of the indexer in a given type.
2345 /// The default is not always `Item'. The user can change this behaviour by
2346 /// using the IndexerNameAttribute in the container.
2347 /// For example, the String class indexer is named `Chars' not `Item'
2349 public static string IndexerPropertyName (Type t)
2351 if (t is TypeBuilder) {
2352 TypeContainer tc = t.IsInterface ? LookupInterface (t) : LookupTypeContainer (t);
2353 return tc == null ? TypeContainer.DefaultIndexerName : tc.IndexerName;
2356 System.Attribute attr = System.Attribute.GetCustomAttribute (
2357 t, TypeManager.default_member_type);
2359 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
2360 return dma.MemberName;
2363 return TypeContainer.DefaultIndexerName;
2366 static MethodInfo declare_local_method = null;
2368 public static LocalBuilder DeclareLocalPinned (ILGenerator ig, Type t)
2370 if (declare_local_method == null){
2371 declare_local_method = typeof (ILGenerator).GetMethod (
2373 BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
2375 new Type [] { typeof (Type), typeof (bool)},
2377 if (declare_local_method == null){
2378 Report.Warning (-24, new Location (-1),
2379 "This version of the runtime does not support making pinned local variables. " +
2380 "This code may cause errors on a runtime with a moving GC");
2381 return ig.DeclareLocal (t);
2384 return (LocalBuilder) declare_local_method.Invoke (ig, new object [] { t, true });
2388 // Returns whether the array of memberinfos contains the given method
2390 public static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
2392 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
2394 foreach (MethodBase method in array) {
2395 if (method.Name != new_method.Name)
2398 if (method is MethodInfo && new_method is MethodInfo)
2399 if (((MethodInfo) method).ReturnType != ((MethodInfo) new_method).ReturnType)
2403 Type [] old_args = TypeManager.GetArgumentTypes (method);
2404 int old_count = old_args.Length;
2407 if (new_args.Length != old_count)
2410 for (i = 0; i < old_count; i++){
2411 if (old_args [i] != new_args [i])
2424 // We copy methods from `new_members' into `target_list' if the signature
2425 // for the method from in the new list does not exist in the target_list
2427 // The name is assumed to be the same.
2429 public static ArrayList CopyNewMethods (ArrayList target_list, IList new_members)
2431 if (target_list == null){
2432 target_list = new ArrayList ();
2434 foreach (MemberInfo mi in new_members){
2435 if (mi is MethodBase)
2436 target_list.Add (mi);
2441 MemberInfo [] target_array = new MemberInfo [target_list.Count];
2442 target_list.CopyTo (target_array, 0);
2444 foreach (MemberInfo mi in new_members){
2445 MethodBase new_method = (MethodBase) mi;
2447 if (!ArrayContainsMethod (target_array, new_method))
2448 target_list.Add (new_method);
2454 #region MemberLookup implementation
2457 // Whether we allow private members in the result (since FindMembers
2458 // uses NonPublic for both protected and private), we need to distinguish.
2461 static internal bool FilterNone (MemberInfo m, object filter_criteria)
2466 internal class Closure {
2467 internal bool private_ok;
2469 // Who is invoking us and which type is being queried currently.
2470 internal Type invocation_type;
2471 internal Type qualifier_type;
2473 // The assembly that defines the type is that is calling us
2474 internal Assembly invocation_assembly;
2475 internal IList almost_match;
2477 private bool CheckValidFamilyAccess (bool is_static, MemberInfo m)
2479 if (invocation_type == null)
2482 Debug.Assert (IsNestedFamilyAccessible (invocation_type, m.DeclaringType));
2487 // A nested class has access to all the protected members visible to its parent.
2488 if (qualifier_type != null
2489 && TypeManager.IsNestedChildOf (invocation_type, qualifier_type))
2492 if (invocation_type == m.DeclaringType
2493 || invocation_type.IsSubclassOf (m.DeclaringType)) {
2494 // Although a derived class can access protected members of its base class
2495 // it cannot do so through an instance of the base class (CS1540).
2496 // => Ancestry should be: declaring_type ->* invocation_type ->* qualified_type
2497 if (qualifier_type == null
2498 || qualifier_type == invocation_type
2499 || qualifier_type.IsSubclassOf (invocation_type))
2503 if (almost_match != null)
2504 almost_match.Add (m);
2509 // This filter filters by name + whether it is ok to include private
2510 // members in the search
2512 internal bool Filter (MemberInfo m, object filter_criteria)
2515 // Hack: we know that the filter criteria will always be in the `closure'
2519 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2522 if (((qualifier_type == null) || (qualifier_type == invocation_type)) &&
2523 (m.DeclaringType == invocation_type))
2527 // Ugly: we need to find out the type of `m', and depending
2528 // on this, tell whether we accept or not
2530 if (m is MethodBase){
2531 MethodBase mb = (MethodBase) m;
2532 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2534 if (ma == MethodAttributes.Private)
2535 return private_ok || (invocation_type == m.DeclaringType) ||
2536 IsNestedChildOf (invocation_type, m.DeclaringType);
2538 // Assembly succeeds if we're in the same assembly.
2539 if (ma == MethodAttributes.Assembly)
2540 return (invocation_assembly == mb.DeclaringType.Assembly);
2542 // FamAndAssem requires that we not only derive, but we are on the same assembly.
2543 if (ma == MethodAttributes.FamANDAssem){
2544 if (invocation_assembly != mb.DeclaringType.Assembly)
2548 // Family and FamANDAssem require that we derive.
2549 if ((ma == MethodAttributes.Family) || (ma == MethodAttributes.FamANDAssem))
2550 return CheckValidFamilyAccess (mb.IsStatic, m);
2556 if (m is FieldInfo){
2557 FieldInfo fi = (FieldInfo) m;
2558 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2560 if (fa == FieldAttributes.Private)
2561 return private_ok || (invocation_type == m.DeclaringType) ||
2562 IsNestedChildOf (invocation_type, m.DeclaringType);
2564 // Assembly succeeds if we're in the same assembly.
2565 if (fa == FieldAttributes.Assembly)
2566 return (invocation_assembly == fi.DeclaringType.Assembly);
2568 // FamAndAssem requires that we not only derive, but we are on the same assembly.
2569 if (fa == FieldAttributes.FamANDAssem){
2570 if (invocation_assembly != fi.DeclaringType.Assembly)
2574 // Family and FamANDAssem require that we derive.
2575 if ((fa == FieldAttributes.Family) || (fa == FieldAttributes.FamANDAssem))
2576 return CheckValidFamilyAccess (fi.IsStatic, m);
2583 // EventInfos and PropertyInfos, return true because they lack permission
2584 // information, so we need to check later on the methods.
2590 static Closure closure = new Closure ();
2591 static MemberFilter FilterWithClosure_delegate = new MemberFilter (closure.Filter);
2594 // Looks up a member called `name' in the `queried_type'. This lookup
2595 // is done by code that is contained in the definition for `invocation_type'
2596 // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
2598 // `invocation_type' is used to check whether we're allowed to access the requested
2599 // member wrt its protection level.
2601 // When called from MemberAccess, `qualifier_type' is the type which is used to access
2602 // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
2603 // is B and qualifier_type is A). This is used to do the CS1540 check.
2605 // When resolving a SimpleName, `qualifier_type' is null.
2607 // The `qualifier_type' is used for the CS1540 check; it's normally either null or
2608 // the same than `queried_type' - except when we're being called from BaseAccess;
2609 // in this case, `invocation_type' is the current type and `queried_type' the base
2610 // type, so this'd normally trigger a CS1540.
2612 // The binding flags are `bf' and the kind of members being looked up are `mt'
2614 // The return value always includes private members which code in `invocation_type'
2615 // is allowed to access (using the specified `qualifier_type' if given); only use
2616 // BindingFlags.NonPublic to bypass the permission check.
2618 // The 'almost_match' argument is used for reporting error CS1540.
2620 // Returns an array of a single element for everything but Methods/Constructors
2621 // that might return multiple matches.
2623 public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_type,
2624 Type queried_type, MemberTypes mt,
2625 BindingFlags original_bf, string name, IList almost_match)
2627 Timer.StartTimer (TimerType.MemberLookup);
2629 MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_type,
2630 queried_type, mt, original_bf, name, almost_match);
2632 Timer.StopTimer (TimerType.MemberLookup);
2637 static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_type,
2638 Type queried_type, MemberTypes mt,
2639 BindingFlags original_bf, string name, IList almost_match)
2641 BindingFlags bf = original_bf;
2643 ArrayList method_list = null;
2644 Type current_type = queried_type;
2645 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2646 bool skip_iface_check = true, used_cache = false;
2647 bool always_ok_flag = false;
2649 closure.invocation_type = invocation_type;
2650 closure.invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2651 closure.qualifier_type = qualifier_type;
2652 closure.almost_match = almost_match;
2655 // If we are a nested class, we always have access to our container
2658 if (invocation_type != null){
2659 string invocation_name = invocation_type.FullName;
2660 if (invocation_name.IndexOf ('+') != -1){
2661 string container = queried_type.FullName + "+";
2662 int container_length = container.Length;
2664 if (invocation_name.Length > container_length){
2665 string shared = invocation_name.Substring (0, container_length);
2667 if (shared == container)
2668 always_ok_flag = true;
2673 // This is from the first time we find a method
2674 // in most cases, we do not actually find a method in the base class
2675 // so we can just ignore it, and save the arraylist allocation
2676 MemberInfo [] first_members_list = null;
2677 bool use_first_members_list = false;
2683 // `NonPublic' is lame, because it includes both protected and
2684 // private methods, so we need to control this behavior by
2685 // explicitly tracking if a private method is ok or not.
2687 // The possible cases are:
2688 // public, private and protected (internal does not come into the
2691 if ((invocation_type != null) &&
2692 ((invocation_type == current_type) ||
2693 IsNestedChildOf (invocation_type, current_type)) ||
2695 bf = original_bf | BindingFlags.NonPublic;
2699 closure.private_ok = (original_bf & BindingFlags.NonPublic) != 0;
2701 Timer.StopTimer (TimerType.MemberLookup);
2703 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2705 Timer.StartTimer (TimerType.MemberLookup);
2708 // When queried for an interface type, the cache will automatically check all
2709 // inherited members, so we don't need to do this here. However, this only
2710 // works if we already used the cache in the first iteration of this loop.
2712 // If we used the cache in any further iteration, we can still terminate the
2713 // loop since the cache always looks in all base classes.
2719 skip_iface_check = false;
2721 if (current_type == TypeManager.object_type)
2724 current_type = current_type.BaseType;
2727 // This happens with interfaces, they have a null
2728 // basetype. Look members up in the Object class.
2730 if (current_type == null) {
2731 current_type = TypeManager.object_type;
2736 if (list.Length == 0)
2740 // Events and types are returned by both `static' and `instance'
2741 // searches, which means that our above FindMembers will
2742 // return two copies of the same.
2744 if (list.Length == 1 && !(list [0] is MethodBase)){
2749 // Multiple properties: we query those just to find out the indexer
2752 if (list [0] is PropertyInfo)
2756 // We found an event: the cache lookup returns both the event and
2757 // its private field.
2759 if (list [0] is EventInfo) {
2760 if ((list.Length == 2) && (list [1] is FieldInfo))
2761 return new MemberInfo [] { list [0] };
2768 // We found methods, turn the search into "method scan"
2772 if (first_members_list != null) {
2773 if (use_first_members_list) {
2774 method_list = CopyNewMethods (method_list, first_members_list);
2775 use_first_members_list = false;
2778 method_list = CopyNewMethods (method_list, list);
2780 first_members_list = list;
2781 use_first_members_list = true;
2782 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2784 } while (searching);
2786 if (use_first_members_list) {
2787 foreach (MemberInfo mi in first_members_list) {
2788 if (! (mi is MethodBase)) {
2789 method_list = CopyNewMethods (method_list, first_members_list);
2790 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2793 return (MemberInfo []) first_members_list;
2796 if (method_list != null && method_list.Count > 0)
2797 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2800 // This happens if we already used the cache in the first iteration, in this case
2801 // the cache already looked in all interfaces.
2803 if (skip_iface_check)
2807 // Interfaces do not list members they inherit, so we have to
2810 if (!queried_type.IsInterface)
2813 if (queried_type.IsArray)
2814 queried_type = TypeManager.array_type;
2816 Type [] ifaces = GetInterfaces (queried_type);
2820 foreach (Type itype in ifaces){
2823 x = MemberLookup (null, null, itype, mt, bf, name, null);
2831 // Tests whether external method is really special
2832 public static bool IsSpecialMethod (MethodBase mb)
2834 string name = mb.Name;
2835 if (name.StartsWith ("get_") || name.StartsWith ("set_"))
2836 return mb.DeclaringType.GetProperty (name.Substring (4)) != null;
2838 if (name.StartsWith ("add_"))
2839 return mb.DeclaringType.GetEvent (name.Substring (4)) != null;
2841 if (name.StartsWith ("remove_"))
2842 return mb.DeclaringType.GetEvent (name.Substring (7)) != null;
2844 if (name.StartsWith ("op_")){
2845 foreach (string oname in Unary.oper_names) {
2850 foreach (string oname in Binary.oper_names) {
2863 /// There is exactly one instance of this class per type.
2865 public sealed class TypeHandle : IMemberContainer {
2866 public readonly TypeHandle BaseType;
2868 readonly int id = ++next_id;
2869 static int next_id = 0;
2872 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2873 /// a TypeHandle yet, a new instance of it is created. This static method
2874 /// ensures that we'll only have one TypeHandle instance per type.
2876 private static TypeHandle GetTypeHandle (Type t)
2878 TypeHandle handle = (TypeHandle) type_hash [t];
2882 handle = new TypeHandle (t);
2883 type_hash.Add (t, handle);
2887 public static MemberCache GetMemberCache (Type t)
2889 return GetTypeHandle (t).MemberCache;
2892 public static void CleanUp ()
2898 /// Returns the TypeHandle for TypeManager.object_type.
2900 public static IMemberContainer ObjectType {
2902 if (object_type != null)
2905 object_type = GetTypeHandle (TypeManager.object_type);
2912 /// Returns the TypeHandle for TypeManager.array_type.
2914 public static IMemberContainer ArrayType {
2916 if (array_type != null)
2919 array_type = GetTypeHandle (TypeManager.array_type);
2925 private static PtrHashtable type_hash = new PtrHashtable ();
2927 private static TypeHandle object_type = null;
2928 private static TypeHandle array_type = null;
2931 private bool is_interface;
2932 private MemberCache member_cache;
2933 private MemberCache base_cache;
2935 private TypeHandle (Type type)
2938 if (type.BaseType != null) {
2939 BaseType = GetTypeHandle (type.BaseType);
2940 base_cache = BaseType.MemberCache;
2941 } else if (type.IsInterface)
2942 base_cache = TypeManager.LookupBaseInterfacesCache (type);
2943 this.is_interface = type.IsInterface;
2944 this.member_cache = new MemberCache (this);
2947 // IMemberContainer methods
2949 public string Name {
2951 return type.FullName;
2961 public MemberCache BaseCache {
2967 public bool IsInterface {
2969 return is_interface;
2973 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
2975 MemberInfo [] members;
2976 if (mt == MemberTypes.Event)
2977 members = type.GetEvents (bf | BindingFlags.DeclaredOnly);
2979 members = type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
2981 Array.Reverse (members);
2983 return new MemberList (members);
2986 // IMemberFinder methods
2988 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
2989 MemberFilter filter, object criteria)
2991 return new MemberList (member_cache.FindMembers (mt, bf, name, filter, criteria));
2994 public MemberCache MemberCache {
2996 return member_cache;
3000 public override string ToString ()
3002 if (BaseType != null)
3003 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
3005 return "TypeHandle (" + id + "," + Name + ")";