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 dllimport_type;
78 static public Type unverifiable_code_type;
79 static public Type methodimpl_attr_type;
80 static public Type marshal_as_attr_type;
81 static public Type param_array_type;
82 static public Type guid_attr_type;
83 static public Type void_ptr_type;
84 static public Type indexer_name_type;
85 static public Type exception_type;
86 static public Type invalid_operation_exception_type;
87 static public Type not_supported_exception_type;
88 static public Type obsolete_attribute_type;
89 static public Type conditional_attribute_type;
90 static public Type in_attribute_type;
91 static public Type anonymous_method_type;
92 static public Type cls_compliant_attribute_type;
93 static public Type typed_reference_type;
94 static public Type arg_iterator_type;
95 static public Type mbr_type;
96 static public Type struct_layout_attribute_type;
97 static public Type field_offset_attribute_type;
98 static public Type security_attr_type;
101 // An empty array of types
103 static public Type [] NoTypes;
104 static public TypeExpr [] NoTypeExprs;
108 // Expressions representing the internal types. Used during declaration
111 static public TypeExpr system_object_expr, system_string_expr;
112 static public TypeExpr system_boolean_expr, system_decimal_expr;
113 static public TypeExpr system_single_expr, system_double_expr;
114 static public TypeExpr system_sbyte_expr, system_byte_expr;
115 static public TypeExpr system_int16_expr, system_uint16_expr;
116 static public TypeExpr system_int32_expr, system_uint32_expr;
117 static public TypeExpr system_int64_expr, system_uint64_expr;
118 static public TypeExpr system_char_expr, system_void_expr;
119 static public TypeExpr system_asynccallback_expr;
120 static public TypeExpr system_iasyncresult_expr;
121 static public TypeExpr system_valuetype_expr;
122 static public TypeExpr system_intptr_expr;
125 // This is only used when compiling corlib
127 static public Type system_int32_type;
128 static public Type system_array_type;
129 static public Type system_type_type;
130 static public Type system_assemblybuilder_type;
131 static public MethodInfo system_int_array_get_length;
132 static public MethodInfo system_int_array_get_rank;
133 static public MethodInfo system_object_array_clone;
134 static public MethodInfo system_int_array_get_length_int;
135 static public MethodInfo system_int_array_get_lower_bound_int;
136 static public MethodInfo system_int_array_get_upper_bound_int;
137 static public MethodInfo system_void_array_copyto_array_int;
141 // Internal, not really used outside
143 static Type runtime_helpers_type;
146 // These methods are called by code generated by the compiler
148 static public MethodInfo string_concat_string_string;
149 static public MethodInfo string_concat_string_string_string;
150 static public MethodInfo string_concat_string_string_string_string;
151 static public MethodInfo string_concat_string_dot_dot_dot;
152 static public MethodInfo string_concat_object_object;
153 static public MethodInfo string_concat_object_object_object;
154 static public MethodInfo string_concat_object_dot_dot_dot;
155 static public MethodInfo string_isinterneted_string;
156 static public MethodInfo system_type_get_type_from_handle;
157 static public MethodInfo object_getcurrent_void;
158 static public MethodInfo bool_movenext_void;
159 static public MethodInfo ienumerable_getenumerator_void;
160 static public MethodInfo void_reset_void;
161 static public MethodInfo void_dispose_void;
162 static public MethodInfo void_monitor_enter_object;
163 static public MethodInfo void_monitor_exit_object;
164 static public MethodInfo void_initializearray_array_fieldhandle;
165 static public MethodInfo int_getlength_int;
166 static public MethodInfo delegate_combine_delegate_delegate;
167 static public MethodInfo delegate_remove_delegate_delegate;
168 static public MethodInfo int_get_offset_to_string_data;
169 static public MethodInfo int_array_get_length;
170 static public MethodInfo int_array_get_rank;
171 static public MethodInfo object_array_clone;
172 static public MethodInfo int_array_get_length_int;
173 static public MethodInfo int_array_get_lower_bound_int;
174 static public MethodInfo int_array_get_upper_bound_int;
175 static public MethodInfo void_array_copyto_array_int;
178 // The attribute constructors.
180 static public ConstructorInfo object_ctor;
181 static public ConstructorInfo cons_param_array_attribute;
182 static public ConstructorInfo void_decimal_ctor_five_args;
183 static public ConstructorInfo unverifiable_code_ctor;
184 static public ConstructorInfo invalid_operation_ctor;
185 static public ConstructorInfo default_member_ctor;
188 // Holds the Array of Assemblies that have been loaded
189 // (either because it is the default or the user used the
190 // -r command line option)
192 static Assembly [] assemblies;
195 // Keeps a list of modules. We used this to do lookups
196 // on the module using GetType -- needed for arrays
198 static Module [] modules;
201 // This is the type_cache from the assemblies to avoid
202 // hitting System.Reflection on every lookup.
204 static Hashtable types;
207 // This is used to hotld the corresponding TypeContainer objects
208 // since we need this in FindMembers
210 static Hashtable typecontainers;
213 // Keeps track of those types that are defined by the
216 static ArrayList user_types;
218 static PtrHashtable builder_to_declspace;
220 static PtrHashtable builder_to_member_cache;
223 // Tracks the interfaces implemented by typebuilders. We only
224 // enter those who do implement or or more interfaces
226 static PtrHashtable builder_to_ifaces;
229 // Maps MethodBase.RuntimeTypeHandle to a Type array that contains
230 // the arguments to the method
232 static Hashtable method_arguments;
235 // Maps PropertyBuilder to a Type array that contains
236 // the arguments to the indexer
238 static Hashtable indexer_arguments;
241 // Maybe `method_arguments' should be replaced and only
242 // method_internal_params should be kept?
244 static Hashtable method_internal_params;
247 // Keeps track of methods
250 static Hashtable builder_to_method;
253 // Contains all public types from referenced assemblies.
254 // This member is used only if CLS Compliance verification is required.
256 public static Hashtable all_imported_types;
263 public static void CleanUp ()
265 // Lets get everything clean so that we can collect before generating code
269 typecontainers = null;
271 builder_to_declspace = null;
272 builder_to_member_cache = null;
273 builder_to_ifaces = null;
274 method_arguments = null;
275 indexer_arguments = null;
276 method_internal_params = null;
277 builder_to_method = null;
281 negative_hits = null;
282 builder_to_constant = null;
283 fieldbuilders_to_fields = null;
285 priv_fields_events = null;
288 TypeHandle.CleanUp ();
292 /// A filter for Findmembers that uses the Signature object to
295 static bool SignatureFilter (MemberInfo mi, object criteria)
297 Signature sig = (Signature) criteria;
299 if (!(mi is MethodBase))
302 if (mi.Name != sig.name)
305 int count = sig.args.Length;
307 if (mi is MethodBuilder || mi is ConstructorBuilder){
308 Type [] candidate_args = GetArgumentTypes ((MethodBase) mi);
310 if (candidate_args.Length != count)
313 for (int i = 0; i < count; i++)
314 if (candidate_args [i] != sig.args [i])
319 ParameterInfo [] pars = ((MethodBase) mi).GetParameters ();
321 if (pars.Length != count)
324 for (int i = 0; i < count; i++)
325 if (pars [i].ParameterType != sig.args [i])
331 // A delegate that points to the filter above.
332 static MemberFilter signature_filter;
335 // These are expressions that represent some of the internal data types, used
338 static void InitExpressionTypes ()
340 system_object_expr = new TypeLookupExpression ("System.Object");
341 system_string_expr = new TypeLookupExpression ("System.String");
342 system_boolean_expr = new TypeLookupExpression ("System.Boolean");
343 system_decimal_expr = new TypeLookupExpression ("System.Decimal");
344 system_single_expr = new TypeLookupExpression ("System.Single");
345 system_double_expr = new TypeLookupExpression ("System.Double");
346 system_sbyte_expr = new TypeLookupExpression ("System.SByte");
347 system_byte_expr = new TypeLookupExpression ("System.Byte");
348 system_int16_expr = new TypeLookupExpression ("System.Int16");
349 system_uint16_expr = new TypeLookupExpression ("System.UInt16");
350 system_int32_expr = new TypeLookupExpression ("System.Int32");
351 system_uint32_expr = new TypeLookupExpression ("System.UInt32");
352 system_int64_expr = new TypeLookupExpression ("System.Int64");
353 system_uint64_expr = new TypeLookupExpression ("System.UInt64");
354 system_char_expr = new TypeLookupExpression ("System.Char");
355 system_void_expr = new TypeLookupExpression ("System.Void");
356 system_asynccallback_expr = new TypeLookupExpression ("System.AsyncCallback");
357 system_iasyncresult_expr = new TypeLookupExpression ("System.IAsyncResult");
358 system_valuetype_expr = new TypeLookupExpression ("System.ValueType");
359 system_intptr_expr = new TypeLookupExpression ("System.IntPtr");
362 static TypeManager ()
364 assemblies = new Assembly [0];
366 user_types = new ArrayList ();
368 types = new Hashtable ();
369 typecontainers = new Hashtable ();
371 builder_to_declspace = new PtrHashtable ();
372 builder_to_member_cache = new PtrHashtable ();
373 builder_to_method = new PtrHashtable ();
374 method_arguments = new PtrHashtable ();
375 method_internal_params = new PtrHashtable ();
376 indexer_arguments = new PtrHashtable ();
377 builder_to_ifaces = new PtrHashtable ();
379 NoTypes = new Type [0];
380 NoTypeExprs = new TypeExpr [0];
382 signature_filter = new MemberFilter (SignatureFilter);
383 InitExpressionTypes ();
386 public static void HandleDuplicate (string name, Type t)
388 Type prev = (Type) types [name];
389 TypeContainer tc = builder_to_declspace [prev] as TypeContainer;
393 // This probably never happens, as we catch this before
395 Report.Error (-17, "The type `" + name + "' has already been defined.");
399 tc = builder_to_declspace [t] as TypeContainer;
402 1595, "The type `" + name + "' is defined in an existing assembly;"+
403 " Using the new definition from: " + tc.Location);
406 1595, "The type `" + name + "' is defined in an existing assembly;");
409 Report.Warning (1595, "Previously defined in: " + prev.Assembly.FullName);
415 public static void AddUserType (string name, TypeBuilder t)
420 HandleDuplicate (name, t);
426 // This entry point is used by types that we define under the covers
428 public static void RegisterBuilder (Type tb, Type [] ifaces)
431 builder_to_ifaces [tb] = ifaces;
434 public static void AddUserType (string name, TypeBuilder t, TypeContainer tc)
436 builder_to_declspace.Add (t, tc);
437 typecontainers.Add (name, tc);
438 AddUserType (name, t);
441 public static void AddDelegateType (string name, TypeBuilder t, Delegate del)
446 HandleDuplicate (name, t);
449 builder_to_declspace.Add (t, del);
452 public static void AddEnumType (string name, TypeBuilder t, Enum en)
457 HandleDuplicate (name, t);
459 builder_to_declspace.Add (t, en);
462 public static void AddMethod (MethodBase builder, IMethodData method)
464 builder_to_method.Add (builder, method);
467 public static IMethodData GetMethod (MethodBase builder)
469 return (IMethodData) builder_to_method [builder];
473 /// Returns the DeclSpace whose Type is `t' or null if there is no
474 /// DeclSpace for `t' (ie, the Type comes from a library)
476 public static DeclSpace LookupDeclSpace (Type t)
478 return builder_to_declspace [t] as DeclSpace;
482 /// Returns the TypeContainer whose Type is `t' or null if there is no
483 /// TypeContainer for `t' (ie, the Type comes from a library)
485 public static TypeContainer LookupTypeContainer (Type t)
487 return builder_to_declspace [t] as TypeContainer;
490 public static MemberCache LookupMemberCache (Type t)
492 if (t is TypeBuilder) {
493 IMemberContainer container = builder_to_declspace [t] as IMemberContainer;
494 if (container != null)
495 return container.MemberCache;
498 return TypeHandle.GetMemberCache (t);
501 public static MemberCache LookupParentInterfacesCache (Type t)
503 Type [] ifaces = t.GetInterfaces ();
505 if (ifaces != null && ifaces.Length == 1)
506 return LookupMemberCache (ifaces [0]);
508 // TODO: the builder_to_member_cache should be indexed by 'ifaces', not 't'
509 MemberCache cache = builder_to_member_cache [t] as MemberCache;
513 cache = new MemberCache (ifaces);
514 builder_to_member_cache.Add (t, cache);
518 public static TypeContainer LookupInterface (Type t)
520 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
521 if ((tc == null) || (tc.Kind != Kind.Interface))
527 public static Delegate LookupDelegate (Type t)
529 return builder_to_declspace [t] as Delegate;
532 public static Enum LookupEnum (Type t)
534 return builder_to_declspace [t] as Enum;
537 public static Class LookupClass (Type t)
539 return (Class) builder_to_declspace [t];
543 /// Registers an assembly to load types from.
545 public static void AddAssembly (Assembly a)
547 foreach (Assembly assembly in assemblies) {
552 int top = assemblies.Length;
553 Assembly [] n = new Assembly [top + 1];
555 assemblies.CopyTo (n, 0);
561 public static Assembly [] GetAssemblies ()
567 /// Registers a module builder to lookup types from
569 public static void AddModule (Module mb)
571 int top = modules != null ? modules.Length : 0;
572 Module [] n = new Module [top + 1];
575 modules.CopyTo (n, 0);
580 public static Module[] Modules {
586 static Hashtable references = new Hashtable ();
589 // Gets the reference to T version of the Type (T&)
591 public static Type GetReferenceType (Type t)
593 string tname = t.FullName + "&";
595 Type ret = t.Assembly.GetType (tname);
598 // If the type comes from the assembly we are building
599 // We need the Hashtable, because .NET 1.1 will return different instance types
600 // every time we call ModuleBuilder.GetType.
603 if (references [t] == null)
604 references [t] = CodeGen.Module.Builder.GetType (tname);
605 ret = (Type) references [t];
611 static Hashtable pointers = new Hashtable ();
614 // Gets the pointer to T version of the Type (T*)
616 public static Type GetPointerType (Type t)
618 string tname = t.FullName + "*";
620 Type ret = t.Assembly.GetType (tname);
623 // If the type comes from the assembly we are building
624 // We need the Hashtable, because .NET 1.1 will return different instance types
625 // every time we call ModuleBuilder.GetType.
628 if (pointers [t] == null)
629 pointers [t] = CodeGen.Module.Builder.GetType (tname);
631 ret = (Type) pointers [t];
638 // Low-level lookup, cache-less
640 static Type LookupTypeReflection (string name)
644 foreach (Assembly a in assemblies){
645 t = a.GetType (name);
650 TypeAttributes ta = t.Attributes & TypeAttributes.VisibilityMask;
651 if (ta == TypeAttributes.NotPublic ||
652 ta == TypeAttributes.NestedPrivate ||
653 ta == TypeAttributes.NestedAssembly ||
654 ta == TypeAttributes.NestedFamANDAssem){
657 // In .NET pointers turn out to be private, even if their
658 // element type is not
661 t = t.GetElementType ();
671 foreach (Module mb in modules) {
672 t = mb.GetType (name);
680 static Hashtable negative_hits = new Hashtable ();
683 // This function is used when you want to avoid the lookups, and want to go
684 // directly to the source. This will use the cache.
686 // Notice that bypassing the cache is bad, because on Microsoft.NET runtime
687 // GetType ("DynamicType[]") != GetType ("DynamicType[]"), and there is no
688 // way to test things other than doing a fullname compare
690 public static Type LookupTypeDirect (string name)
692 Type t = (Type) types [name];
696 if (negative_hits.Contains (name))
699 t = LookupTypeReflection (name);
702 negative_hits [name] = null;
709 static readonly char [] dot_array = { '.' };
712 /// Returns the Type associated with @name, takes care of the fact that
713 /// reflection expects nested types to be separated from the main type
714 /// with a "+" instead of a "."
716 public static Type LookupType (string name)
721 // First lookup in user defined and cached values
724 t = (Type) types [name];
728 // Two thirds of the failures are caught here.
729 if (negative_hits.Contains (name))
732 // Sadly, split takes a param array, so this ends up allocating *EVERY TIME*
733 string [] elements = name.Split (dot_array);
734 int count = elements.Length;
736 for (int n = 1; n <= count; n++){
737 string top_level_type = String.Join (".", elements, 0, n);
739 // One third of the failures are caught here.
740 if (negative_hits.Contains (top_level_type))
743 t = (Type) types [top_level_type];
745 t = LookupTypeReflection (top_level_type);
747 negative_hits [top_level_type] = null;
758 // We know that System.Object does not have children, and since its the parent of
759 // all the objects, it always gets probbed for inner classes.
761 if (top_level_type == "System.Object")
764 string newt = top_level_type + "+" + String.Join ("+", elements, n, count - n);
765 //Console.WriteLine ("Looking up: " + newt + " " + name);
766 t = LookupTypeReflection (newt);
768 negative_hits [name] = null;
773 negative_hits [name] = null;
778 /// Computes the namespaces that we import from the assemblies we reference.
780 public static void ComputeNamespaces ()
782 MethodInfo assembly_get_namespaces = typeof (Assembly).GetMethod ("GetNamespaces", BindingFlags.Instance|BindingFlags.NonPublic);
785 // First add the assembly namespaces
787 if (assembly_get_namespaces != null){
788 int count = assemblies.Length;
790 for (int i = 0; i < count; i++){
791 Assembly a = assemblies [i];
792 string [] namespaces = (string []) assembly_get_namespaces.Invoke (a, null);
793 foreach (string ns in namespaces){
796 Namespace.LookupNamespace (ns, true);
800 Hashtable cache = new Hashtable ();
801 cache.Add ("", null);
802 foreach (Assembly a in assemblies) {
803 foreach (Type t in a.GetExportedTypes ()) {
804 string ns = t.Namespace;
805 if (ns == null || cache.Contains (ns))
808 Namespace.LookupNamespace (ns, true);
809 cache.Add (ns, null);
816 /// Fills static table with exported types from all referenced assemblies.
817 /// This information is required for CLS Compliance tests.
819 public static void LoadAllImportedTypes ()
821 all_imported_types = new Hashtable ();
822 foreach (Assembly a in assemblies) {
823 foreach (Type t in a.GetExportedTypes ()) {
824 all_imported_types [t.FullName] = t;
829 public static bool NamespaceClash (string name, Location loc)
831 if (Namespace.LookupNamespace (name, false) == null)
834 Report.Error (519, loc, String.Format ("`{0}' clashes with a predefined namespace", name));
839 /// Returns the C# name of a type if possible, or the full type name otherwise
841 static public string CSharpName (Type t)
843 return Regex.Replace (t.FullName,
845 @"(Int32|UInt32|Int16|UInt16|Int64|UInt64|" +
846 @"Single|Double|Char|Decimal|Byte|SByte|Object|" +
847 @"Boolean|String|Void|Null)" +
849 new MatchEvaluator (CSharpNameMatch));
852 static String CSharpNameMatch (Match match)
854 string s = match.Groups [1].Captures [0].Value;
856 Replace ("int32", "int").
857 Replace ("uint32", "uint").
858 Replace ("int16", "short").
859 Replace ("uint16", "ushort").
860 Replace ("int64", "long").
861 Replace ("uint64", "ulong").
862 Replace ("single", "float").
863 Replace ("boolean", "bool")
864 + match.Groups [2].Captures [0].Value;
868 /// Returns the signature of the method with full namespace classification
870 static public string GetFullNameSignature (MemberInfo mi)
872 return mi.DeclaringType.FullName.Replace ('+', '.') + '.' + mi.Name;
875 static public string GetFullNameSignature (MethodBase mb)
877 string name = mb.Name;
879 name = mb.DeclaringType.Name;
881 if (mb.IsSpecialName) {
882 if (name.StartsWith ("get_") || name.StartsWith ("set_")) {
883 name = name.Remove (0, 4);
890 return mb.DeclaringType.FullName.Replace ('+', '.') + '.' + name;
894 /// Returns the signature of the property and indexer
896 static public string CSharpSignature (PropertyBuilder pb, bool is_indexer)
899 return GetFullNameSignature (pb);
902 MethodBase mb = pb.GetSetMethod (true) != null ? pb.GetSetMethod (true) : pb.GetGetMethod (true);
903 string signature = GetFullNameSignature (mb);
904 string arg = TypeManager.LookupParametersByBuilder (mb).ParameterDesc (0);
905 return String.Format ("{0}.this[{1}]", signature.Substring (0, signature.LastIndexOf ('.')), arg);
909 /// Returns the signature of the method
911 static public string CSharpSignature (MethodBase mb)
913 StringBuilder sig = new StringBuilder ("(");
916 // FIXME: We should really have a single function to do
917 // everything instead of the following 5 line pattern
919 ParameterData iparams = LookupParametersByBuilder (mb);
922 iparams = new ReflectionParameters (mb);
925 if (mb.IsSpecialName && iparams.Count == 0 && !mb.IsConstructor)
926 return GetFullNameSignature (mb);
928 for (int i = 0; i < iparams.Count; i++) {
932 sig.Append (iparams.ParameterDesc (i));
937 if (mb.IsSpecialName && iparams.Count == 1 && !mb.IsConstructor) {
938 sig.Replace ('(', '[');
939 sig.Replace (')', ']');
942 return GetFullNameSignature (mb) + sig.ToString ();
946 /// Looks up a type, and aborts if it is not found. This is used
947 /// by types required by the compiler
949 static Type CoreLookupType (string name)
951 Type t = LookupTypeDirect (name);
954 Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
955 Environment.Exit (1);
962 /// Returns the MethodInfo for a method named `name' defined
963 /// in type `t' which takes arguments of types `args'
965 static MethodInfo GetMethod (Type t, string name, Type [] args, bool is_private, bool report_errors)
969 BindingFlags flags = instance_and_static | BindingFlags.Public;
975 flags |= BindingFlags.NonPublic;
977 list = FindMembers (t, MemberTypes.Method, flags, signature_filter, sig);
978 if (list.Count == 0) {
980 Report.Error (-19, "Can not find the core function `" + name + "'");
984 MethodInfo mi = list [0] as MethodInfo;
987 Report.Error (-19, "Can not find the core function `" + name + "'");
994 static MethodInfo GetMethod (Type t, string name, Type [] args, bool report_errors)
996 return GetMethod (t, name, args, false, report_errors);
999 static MethodInfo GetMethod (Type t, string name, Type [] args)
1001 return GetMethod (t, name, args, true);
1006 /// Returns the ConstructorInfo for "args"
1008 static ConstructorInfo GetConstructor (Type t, Type [] args)
1016 list = FindMembers (t, MemberTypes.Constructor,
1017 instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly,
1018 signature_filter, sig);
1019 if (list.Count == 0){
1020 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
1024 ConstructorInfo ci = list [0] as ConstructorInfo;
1026 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
1033 public static void InitEnumUnderlyingTypes ()
1036 int32_type = CoreLookupType ("System.Int32");
1037 int64_type = CoreLookupType ("System.Int64");
1038 uint32_type = CoreLookupType ("System.UInt32");
1039 uint64_type = CoreLookupType ("System.UInt64");
1040 byte_type = CoreLookupType ("System.Byte");
1041 sbyte_type = CoreLookupType ("System.SByte");
1042 short_type = CoreLookupType ("System.Int16");
1043 ushort_type = CoreLookupType ("System.UInt16");
1047 /// The types have to be initialized after the initial
1048 /// population of the type has happened (for example, to
1049 /// bootstrap the corlib.dll
1051 public static void InitCoreTypes ()
1053 object_type = CoreLookupType ("System.Object");
1054 value_type = CoreLookupType ("System.ValueType");
1056 InitEnumUnderlyingTypes ();
1058 char_type = CoreLookupType ("System.Char");
1059 string_type = CoreLookupType ("System.String");
1060 float_type = CoreLookupType ("System.Single");
1061 double_type = CoreLookupType ("System.Double");
1062 char_ptr_type = CoreLookupType ("System.Char*");
1063 decimal_type = CoreLookupType ("System.Decimal");
1064 bool_type = CoreLookupType ("System.Boolean");
1065 enum_type = CoreLookupType ("System.Enum");
1067 multicast_delegate_type = CoreLookupType ("System.MulticastDelegate");
1068 delegate_type = CoreLookupType ("System.Delegate");
1070 array_type = CoreLookupType ("System.Array");
1071 void_type = CoreLookupType ("System.Void");
1072 type_type = CoreLookupType ("System.Type");
1074 runtime_field_handle_type = CoreLookupType ("System.RuntimeFieldHandle");
1075 runtime_argument_handle_type = CoreLookupType ("System.RuntimeArgumentHandle");
1076 runtime_helpers_type = CoreLookupType ("System.Runtime.CompilerServices.RuntimeHelpers");
1077 default_member_type = CoreLookupType ("System.Reflection.DefaultMemberAttribute");
1078 runtime_handle_type = CoreLookupType ("System.RuntimeTypeHandle");
1079 asynccallback_type = CoreLookupType ("System.AsyncCallback");
1080 iasyncresult_type = CoreLookupType ("System.IAsyncResult");
1081 ienumerator_type = CoreLookupType ("System.Collections.IEnumerator");
1082 ienumerable_type = CoreLookupType ("System.Collections.IEnumerable");
1083 idisposable_type = CoreLookupType ("System.IDisposable");
1084 icloneable_type = CoreLookupType ("System.ICloneable");
1085 iconvertible_type = CoreLookupType ("System.IConvertible");
1086 monitor_type = CoreLookupType ("System.Threading.Monitor");
1087 intptr_type = CoreLookupType ("System.IntPtr");
1089 attribute_type = CoreLookupType ("System.Attribute");
1090 attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
1091 dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
1092 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
1093 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
1094 param_array_type = CoreLookupType ("System.ParamArrayAttribute");
1095 in_attribute_type = CoreLookupType ("System.Runtime.InteropServices.InAttribute");
1096 typed_reference_type = CoreLookupType ("System.TypedReference");
1097 arg_iterator_type = CoreLookupType ("System.ArgIterator");
1098 mbr_type = CoreLookupType ("System.MarshalByRefObject");
1101 // Sigh. Remove this before the release. Wonder what versions of Mono
1102 // people are running.
1104 guid_attr_type = LookupType ("System.Runtime.InteropServices.GuidAttribute");
1106 unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
1108 void_ptr_type = CoreLookupType ("System.Void*");
1110 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
1112 exception_type = CoreLookupType ("System.Exception");
1113 invalid_operation_exception_type = CoreLookupType ("System.InvalidOperationException");
1114 not_supported_exception_type = CoreLookupType ("System.NotSupportedException");
1119 obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
1120 conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
1121 cls_compliant_attribute_type = CoreLookupType ("System.CLSCompliantAttribute");
1122 struct_layout_attribute_type = CoreLookupType ("System.Runtime.InteropServices.StructLayoutAttribute");
1123 field_offset_attribute_type = CoreLookupType ("System.Runtime.InteropServices.FieldOffsetAttribute");
1124 security_attr_type = CoreLookupType ("System.Security.Permissions.SecurityAttribute");
1127 // When compiling corlib, store the "real" types here.
1129 if (!RootContext.StdLib) {
1130 system_int32_type = typeof (System.Int32);
1131 system_array_type = typeof (System.Array);
1132 system_type_type = typeof (System.Type);
1133 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
1135 Type [] void_arg = { };
1136 system_int_array_get_length = GetMethod (
1137 system_array_type, "get_Length", void_arg);
1138 system_int_array_get_rank = GetMethod (
1139 system_array_type, "get_Rank", void_arg);
1140 system_object_array_clone = GetMethod (
1141 system_array_type, "Clone", void_arg);
1143 Type [] system_int_arg = { system_int32_type };
1144 system_int_array_get_length_int = GetMethod (
1145 system_array_type, "GetLength", system_int_arg);
1146 system_int_array_get_upper_bound_int = GetMethod (
1147 system_array_type, "GetUpperBound", system_int_arg);
1148 system_int_array_get_lower_bound_int = GetMethod (
1149 system_array_type, "GetLowerBound", system_int_arg);
1151 Type [] system_array_int_arg = { system_array_type, system_int32_type };
1152 system_void_array_copyto_array_int = GetMethod (
1153 system_array_type, "CopyTo", system_array_int_arg);
1155 Type [] system_3_type_arg = {
1156 system_type_type, system_type_type, system_type_type };
1157 Type [] system_4_type_arg = {
1158 system_type_type, system_type_type, system_type_type, system_type_type };
1160 MethodInfo set_corlib_type_builders = GetMethod (
1161 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1162 system_4_type_arg, true, false);
1164 if (set_corlib_type_builders != null) {
1165 object[] args = new object [4];
1166 args [0] = object_type;
1167 args [1] = value_type;
1168 args [2] = enum_type;
1169 args [3] = void_type;
1171 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1173 // Compatibility for an older version of the class libs.
1174 set_corlib_type_builders = GetMethod (
1175 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1176 system_3_type_arg, true, true);
1178 if (set_corlib_type_builders == null) {
1179 Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
1183 object[] args = new object [3];
1184 args [0] = object_type;
1185 args [1] = value_type;
1186 args [2] = enum_type;
1188 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1192 system_object_expr.Type = object_type;
1193 system_string_expr.Type = string_type;
1194 system_boolean_expr.Type = bool_type;
1195 system_decimal_expr.Type = decimal_type;
1196 system_single_expr.Type = float_type;
1197 system_double_expr.Type = double_type;
1198 system_sbyte_expr.Type = sbyte_type;
1199 system_byte_expr.Type = byte_type;
1200 system_int16_expr.Type = short_type;
1201 system_uint16_expr.Type = ushort_type;
1202 system_int32_expr.Type = int32_type;
1203 system_uint32_expr.Type = uint32_type;
1204 system_int64_expr.Type = int64_type;
1205 system_uint64_expr.Type = uint64_type;
1206 system_char_expr.Type = char_type;
1207 system_void_expr.Type = void_type;
1208 system_asynccallback_expr.Type = asynccallback_type;
1209 system_iasyncresult_expr.Type = iasyncresult_type;
1210 system_valuetype_expr.Type = value_type;
1213 // These are only used for compare purposes
1215 anonymous_method_type = typeof (AnonymousMethod);
1216 null_type = typeof (NullType);
1220 // The helper methods that are used by the compiler
1222 public static void InitCodeHelpers ()
1225 // Now load the default methods that we use.
1227 Type [] string_string = { string_type, string_type };
1228 string_concat_string_string = GetMethod (
1229 string_type, "Concat", string_string);
1230 Type [] string_string_string = { string_type, string_type, string_type };
1231 string_concat_string_string_string = GetMethod (
1232 string_type, "Concat", string_string_string);
1233 Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
1234 string_concat_string_string_string_string = GetMethod (
1235 string_type, "Concat", string_string_string_string);
1236 Type[] params_string = { TypeManager.LookupType ("System.String[]") };
1237 string_concat_string_dot_dot_dot = GetMethod (
1238 string_type, "Concat", params_string);
1240 Type [] object_object = { object_type, object_type };
1241 string_concat_object_object = GetMethod (
1242 string_type, "Concat", object_object);
1243 Type [] object_object_object = { object_type, object_type, object_type };
1244 string_concat_object_object_object = GetMethod (
1245 string_type, "Concat", object_object_object);
1246 Type[] params_object = { TypeManager.LookupType ("System.Object[]") };
1247 string_concat_object_dot_dot_dot = GetMethod (
1248 string_type, "Concat", params_object);
1250 Type [] string_ = { string_type };
1251 string_isinterneted_string = GetMethod (
1252 string_type, "IsInterned", string_);
1254 Type [] runtime_type_handle = { runtime_handle_type };
1255 system_type_get_type_from_handle = GetMethod (
1256 type_type, "GetTypeFromHandle", runtime_type_handle);
1258 Type [] delegate_delegate = { delegate_type, delegate_type };
1259 delegate_combine_delegate_delegate = GetMethod (
1260 delegate_type, "Combine", delegate_delegate);
1262 delegate_remove_delegate_delegate = GetMethod (
1263 delegate_type, "Remove", delegate_delegate);
1268 Type [] void_arg = { };
1269 object_getcurrent_void = GetMethod (
1270 ienumerator_type, "get_Current", void_arg);
1271 bool_movenext_void = GetMethod (
1272 ienumerator_type, "MoveNext", void_arg);
1273 void_reset_void = GetMethod (
1274 ienumerator_type, "Reset", void_arg);
1275 void_dispose_void = GetMethod (
1276 idisposable_type, "Dispose", void_arg);
1277 int_get_offset_to_string_data = GetMethod (
1278 runtime_helpers_type, "get_OffsetToStringData", void_arg);
1279 int_array_get_length = GetMethod (
1280 array_type, "get_Length", void_arg);
1281 int_array_get_rank = GetMethod (
1282 array_type, "get_Rank", void_arg);
1283 ienumerable_getenumerator_void = GetMethod (
1284 ienumerable_type, "GetEnumerator", void_arg);
1289 Type [] int_arg = { int32_type };
1290 int_array_get_length_int = GetMethod (
1291 array_type, "GetLength", int_arg);
1292 int_array_get_upper_bound_int = GetMethod (
1293 array_type, "GetUpperBound", int_arg);
1294 int_array_get_lower_bound_int = GetMethod (
1295 array_type, "GetLowerBound", int_arg);
1298 // System.Array methods
1300 object_array_clone = GetMethod (
1301 array_type, "Clone", void_arg);
1302 Type [] array_int_arg = { array_type, int32_type };
1303 void_array_copyto_array_int = GetMethod (
1304 array_type, "CopyTo", array_int_arg);
1309 Type [] object_arg = { object_type };
1310 void_monitor_enter_object = GetMethod (
1311 monitor_type, "Enter", object_arg);
1312 void_monitor_exit_object = GetMethod (
1313 monitor_type, "Exit", object_arg);
1315 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1317 void_initializearray_array_fieldhandle = GetMethod (
1318 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1323 int_getlength_int = GetMethod (
1324 array_type, "GetLength", int_arg);
1327 // Decimal constructors
1329 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1330 void_decimal_ctor_five_args = GetConstructor (
1331 decimal_type, dec_arg);
1336 cons_param_array_attribute = GetConstructor (
1337 param_array_type, void_arg);
1339 unverifiable_code_ctor = GetConstructor (
1340 unverifiable_code_type, void_arg);
1342 default_member_ctor = GetConstructor (default_member_type, string_);
1345 // InvalidOperationException
1347 invalid_operation_ctor = GetConstructor (
1348 invalid_operation_exception_type, void_arg);
1352 object_ctor = GetConstructor (object_type, void_arg);
1356 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1359 /// This is the "old", non-cache based FindMembers() function. We cannot use
1360 /// the cache here because there is no member name argument.
1362 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1363 MemberFilter filter, object criteria)
1365 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1368 // `builder_to_declspace' contains all dynamic types.
1372 Timer.StartTimer (TimerType.FindMembers);
1373 list = decl.FindMembers (mt, bf, filter, criteria);
1374 Timer.StopTimer (TimerType.FindMembers);
1379 // We have to take care of arrays specially, because GetType on
1380 // a TypeBuilder array will return a Type, not a TypeBuilder,
1381 // and we can not call FindMembers on this type.
1383 if (t.IsSubclassOf (TypeManager.array_type))
1384 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1387 // Since FindMembers will not lookup both static and instance
1388 // members, we emulate this behaviour here.
1390 if ((bf & instance_and_static) == instance_and_static){
1391 MemberInfo [] i_members = t.FindMembers (
1392 mt, bf & ~BindingFlags.Static, filter, criteria);
1394 int i_len = i_members.Length;
1396 MemberInfo one = i_members [0];
1399 // If any of these are present, we are done!
1401 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1402 return new MemberList (i_members);
1405 MemberInfo [] s_members = t.FindMembers (
1406 mt, bf & ~BindingFlags.Instance, filter, criteria);
1408 int s_len = s_members.Length;
1409 if (i_len > 0 || s_len > 0)
1410 return new MemberList (i_members, s_members);
1413 return new MemberList (i_members);
1415 return new MemberList (s_members);
1419 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1424 /// This method is only called from within MemberLookup. It tries to use the member
1425 /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
1426 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1427 /// our return value will already contain all inherited members and the caller don't need
1428 /// to check base classes and interfaces anymore.
1430 private static MemberInfo [] MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1431 string name, out bool used_cache)
1436 // We have to take care of arrays specially, because GetType on
1437 // a TypeBuilder array will return a Type, not a TypeBuilder,
1438 // and we can not call FindMembers on this type.
1440 if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
1442 return TypeHandle.ArrayType.MemberCache.FindMembers (
1443 mt, bf, name, FilterWithClosure_delegate, null);
1447 // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
1448 // and we can ask the DeclSpace for the MemberCache.
1450 if (t is TypeBuilder) {
1451 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1452 cache = decl.MemberCache;
1455 // If this DeclSpace has a MemberCache, use it.
1458 if (cache != null) {
1460 return cache.FindMembers (
1461 mt, bf, name, FilterWithClosure_delegate, null);
1464 // If there is no MemberCache, we need to use the "normal" FindMembers.
1465 // Note, this is a VERY uncommon route!
1468 Timer.StartTimer (TimerType.FindMembers);
1469 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
1470 FilterWithClosure_delegate, name);
1471 Timer.StopTimer (TimerType.FindMembers);
1474 return (MemberInfo []) list;
1478 // This call will always succeed. There is exactly one TypeHandle instance per
1479 // type, TypeHandle.GetMemberCache() will, if necessary, create a new one, and return
1480 // the corresponding MemberCache.
1482 cache = TypeHandle.GetMemberCache (t);
1485 return cache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1488 public static bool IsBuiltinType (Type t)
1490 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1491 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1492 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1493 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
1499 public static bool IsBuiltinType (TypeContainer tc)
1501 return IsBuiltinType (tc.TypeBuilder);
1505 // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
1506 // the pieces in the code where we use IsBuiltinType and special case decimal_type.
1508 public static bool IsCLRType (Type t)
1510 if (t == object_type || t == int32_type || t == uint32_type ||
1511 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1512 t == char_type || t == short_type || t == bool_type ||
1513 t == sbyte_type || t == byte_type || t == ushort_type)
1519 public static bool IsDelegateType (Type t)
1521 if (t.IsSubclassOf (TypeManager.delegate_type))
1527 public static bool IsEnumType (Type t)
1529 if (t.IsSubclassOf (TypeManager.enum_type))
1534 public static bool IsBuiltinOrEnum (Type t)
1536 if (IsBuiltinType (t))
1546 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1548 public static bool IsUnmanagedType (Type t)
1550 if (IsBuiltinType (t) && t != TypeManager.string_type)
1559 if (IsValueType (t)){
1560 if (t is TypeBuilder){
1561 TypeContainer tc = LookupTypeContainer (t);
1563 if (tc.Fields != null){
1564 foreach (Field f in tc.Fields){
1565 if (f.FieldBuilder.IsStatic)
1567 if (!IsUnmanagedType (f.FieldBuilder.FieldType))
1573 FieldInfo [] fields = t.GetFields ();
1575 foreach (FieldInfo f in fields){
1578 if (!IsUnmanagedType (f.FieldType))
1588 public static bool IsValueType (Type t)
1590 if (t.IsSubclassOf (TypeManager.value_type) && (t != TypeManager.enum_type))
1596 public static bool IsInterfaceType (Type t)
1598 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
1602 return tc.Kind == Kind.Interface;
1606 // Checks whether `type' is a subclass or nested child of `parent'.
1608 public static bool IsSubclassOrNestedChildOf (Type type, Type parent)
1611 if ((type == parent) || type.IsSubclassOf (parent))
1614 // Handle nested types.
1615 type = type.DeclaringType;
1616 } while (type != null);
1622 // Checks whether `type' is a nested child of `parent'.
1624 public static bool IsNestedChildOf (Type type, Type parent)
1629 type = type.DeclaringType;
1630 while (type != null) {
1634 type = type.DeclaringType;
1641 // Do the right thing when returning the element type of an
1642 // array type based on whether we are compiling corlib or not
1644 public static Type GetElementType (Type t)
1646 if (RootContext.StdLib)
1647 return t.GetElementType ();
1649 return TypeToCoreType (t.GetElementType ());
1653 /// Returns the User Defined Types
1655 public static ArrayList UserTypes {
1661 public static Hashtable TypeContainers {
1663 return typecontainers;
1667 static Hashtable builder_to_constant;
1669 public static void RegisterConstant (FieldBuilder fb, Const c)
1671 if (builder_to_constant == null)
1672 builder_to_constant = new PtrHashtable ();
1674 if (builder_to_constant.Contains (fb))
1677 builder_to_constant.Add (fb, c);
1680 public static Const LookupConstant (FieldBuilder fb)
1682 if (builder_to_constant == null)
1685 return (Const) builder_to_constant [fb];
1689 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1693 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1694 /// for anything which is dynamic, and we need this in a number of places,
1695 /// we register this information here, and use it afterwards.
1697 static public void RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1702 method_arguments.Add (mb, args);
1703 method_internal_params.Add (mb, ip);
1706 static public InternalParameters LookupParametersByBuilder (MethodBase mb)
1708 if (! (mb is ConstructorBuilder || mb is MethodBuilder))
1711 if (method_internal_params.Contains (mb))
1712 return (InternalParameters) method_internal_params [mb];
1714 throw new Exception ("Argument for Method not registered" + mb);
1718 /// Returns the argument types for a method based on its methodbase
1720 /// For dynamic methods, we use the compiler provided types, for
1721 /// methods from existing assemblies we load them from GetParameters,
1722 /// and insert them into the cache
1724 static public Type [] GetArgumentTypes (MethodBase mb)
1726 object t = method_arguments [mb];
1730 ParameterInfo [] pi = mb.GetParameters ();
1737 types = new Type [c];
1738 for (int i = 0; i < c; i++)
1739 types [i] = pi [i].ParameterType;
1741 method_arguments.Add (mb, types);
1746 /// Returns the argument types for an indexer based on its PropertyInfo
1748 /// For dynamic indexers, we use the compiler provided types, for
1749 /// indexers from existing assemblies we load them from GetParameters,
1750 /// and insert them into the cache
1752 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1754 if (indexer_arguments.Contains (indexer))
1755 return (Type []) indexer_arguments [indexer];
1756 else if (indexer is PropertyBuilder)
1757 // If we're a PropertyBuilder and not in the
1758 // `indexer_arguments' hash, then we're a property and
1762 ParameterInfo [] pi = indexer.GetIndexParameters ();
1763 // Property, not an indexer.
1767 Type [] types = new Type [c];
1769 for (int i = 0; i < c; i++)
1770 types [i] = pi [i].ParameterType;
1772 indexer_arguments.Add (indexer, types);
1778 // This is a workaround the fact that GetValue is not
1779 // supported for dynamic types
1781 static Hashtable fields = new Hashtable ();
1782 static public bool RegisterFieldValue (FieldBuilder fb, object value)
1784 if (fields.Contains (fb))
1787 fields.Add (fb, value);
1792 static public object GetValue (FieldBuilder fb)
1797 static Hashtable fieldbuilders_to_fields = new Hashtable ();
1798 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1800 if (fieldbuilders_to_fields.Contains (fb))
1803 fieldbuilders_to_fields.Add (fb, f);
1808 // The return value can be null; This will be the case for
1809 // auxiliary FieldBuilders created by the compiler that have no
1810 // real field being declared on the source code
1812 static public FieldBase GetField (FieldInfo fb)
1814 return (FieldBase) fieldbuilders_to_fields [fb];
1817 static Hashtable events;
1819 static public void RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1822 events = new Hashtable ();
1824 if (!events.Contains (eb)) {
1825 events.Add (eb, new Pair (add, remove));
1829 static public MethodInfo GetAddMethod (EventInfo ei)
1831 if (ei is MyEventBuilder) {
1832 Pair pair = (Pair) events [ei];
1834 return (MethodInfo) pair.First;
1836 return ei.GetAddMethod (true);
1839 static public MethodInfo GetRemoveMethod (EventInfo ei)
1841 if (ei is MyEventBuilder) {
1842 Pair pair = (Pair) events [ei];
1844 return (MethodInfo) pair.Second;
1846 return ei.GetRemoveMethod (true);
1849 static Hashtable priv_fields_events;
1851 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1853 if (priv_fields_events == null)
1854 priv_fields_events = new Hashtable ();
1856 if (priv_fields_events.Contains (einfo))
1859 priv_fields_events.Add (einfo, builder);
1864 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1866 if (priv_fields_events == null)
1869 return (MemberInfo) priv_fields_events [ei];
1872 static Hashtable properties;
1874 static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase set)
1876 if (properties == null)
1877 properties = new Hashtable ();
1879 if (properties.Contains (pb))
1882 properties.Add (pb, new Pair (get, set));
1887 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get,
1888 MethodBase set, Type[] args)
1890 if (!RegisterProperty (pb, get,set))
1893 indexer_arguments.Add (pb, args);
1898 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen)
1900 Hashtable hash = new Hashtable ();
1901 return CheckStructCycles (tc, seen, hash);
1904 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen,
1907 if ((tc.Kind != Kind.Struct) || IsBuiltinType (tc))
1911 // `seen' contains all types we've already visited.
1913 if (seen.Contains (tc))
1915 seen.Add (tc, null);
1917 if (tc.Fields == null)
1920 foreach (Field field in tc.Fields) {
1921 if (field.FieldBuilder.IsStatic)
1924 Type ftype = field.FieldBuilder.FieldType;
1925 TypeContainer ftc = LookupTypeContainer (ftype);
1929 if (hash.Contains (ftc)) {
1930 Report.Error (523, tc.Location,
1931 "Struct member `{0}.{1}' of type `{2}' " +
1932 "causes a cycle in the struct layout",
1933 tc.Name, field.Name, ftc.Name);
1938 // `hash' contains all types in the current path.
1940 hash.Add (tc, null);
1942 bool ok = CheckStructCycles (ftc, seen, hash);
1949 if (!seen.Contains (ftc))
1950 seen.Add (ftc, null);
1957 /// Given an array of interface types, expand and eliminate repeated ocurrences
1958 /// of an interface.
1962 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
1965 public static Type[] ExpandInterfaces (EmitContext ec, TypeExpr [] base_interfaces)
1967 ArrayList new_ifaces = new ArrayList ();
1969 foreach (TypeExpr iface in base_interfaces){
1970 Type itype = iface.ResolveType (ec);
1974 if (!new_ifaces.Contains (itype))
1975 new_ifaces.Add (itype);
1977 Type [] implementing = itype.GetInterfaces ();
1979 foreach (Type imp in implementing){
1980 if (!new_ifaces.Contains (imp))
1981 new_ifaces.Add (imp);
1984 Type [] ret = new Type [new_ifaces.Count];
1985 new_ifaces.CopyTo (ret, 0);
1989 static PtrHashtable iface_cache = new PtrHashtable ();
1992 /// This function returns the interfaces in the type `t'. Works with
1993 /// both types and TypeBuilders.
1995 public static Type [] GetInterfaces (Type t)
1998 Type [] cached = iface_cache [t] as Type [];
2003 // The reason for catching the Array case is that Reflection.Emit
2004 // will not return a TypeBuilder for Array types of TypeBuilder types,
2005 // but will still throw an exception if we try to call GetInterfaces
2008 // Since the array interfaces are always constant, we return those for
2013 t = TypeManager.array_type;
2015 if (t is TypeBuilder){
2016 Type [] parent_ifaces;
2018 if (t.BaseType == null)
2019 parent_ifaces = NoTypes;
2021 parent_ifaces = GetInterfaces (t.BaseType);
2022 Type [] type_ifaces = (Type []) builder_to_ifaces [t];
2023 if (type_ifaces == null)
2024 type_ifaces = NoTypes;
2026 int parent_count = parent_ifaces.Length;
2027 Type [] result = new Type [parent_count + type_ifaces.Length];
2028 parent_ifaces.CopyTo (result, 0);
2029 type_ifaces.CopyTo (result, parent_count);
2031 iface_cache [t] = result;
2034 Type[] ifaces = t.GetInterfaces ();
2035 iface_cache [t] = ifaces;
2041 // gets the interfaces that are declared explicitly on t
2043 public static Type [] GetExplicitInterfaces (TypeBuilder t)
2045 return (Type []) builder_to_ifaces [t];
2049 /// The following is used to check if a given type implements an interface.
2050 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
2052 public static bool ImplementsInterface (Type t, Type iface)
2057 // FIXME OPTIMIZATION:
2058 // as soon as we hit a non-TypeBuiler in the interface
2059 // chain, we could return, as the `Type.GetInterfaces'
2060 // will return all the interfaces implement by the type
2064 interfaces = GetInterfaces (t);
2066 if (interfaces != null){
2067 foreach (Type i in interfaces){
2074 } while (t != null);
2079 static NumberFormatInfo nf_provider = CultureInfo.CurrentCulture.NumberFormat;
2081 // This is a custom version of Convert.ChangeType() which works
2082 // with the TypeBuilder defined types when compiling corlib.
2083 public static object ChangeType (object value, Type conversionType, out bool error)
2085 IConvertible convert_value = value as IConvertible;
2087 if (convert_value == null){
2093 // We must use Type.Equals() here since `conversionType' is
2094 // the TypeBuilder created version of a system type and not
2095 // the system type itself. You cannot use Type.GetTypeCode()
2096 // on such a type - it'd always return TypeCode.Object.
2100 if (conversionType.Equals (typeof (Boolean)))
2101 return (object)(convert_value.ToBoolean (nf_provider));
2102 else if (conversionType.Equals (typeof (Byte)))
2103 return (object)(convert_value.ToByte (nf_provider));
2104 else if (conversionType.Equals (typeof (Char)))
2105 return (object)(convert_value.ToChar (nf_provider));
2106 else if (conversionType.Equals (typeof (DateTime)))
2107 return (object)(convert_value.ToDateTime (nf_provider));
2108 else if (conversionType.Equals (typeof (Decimal)))
2109 return (object)(convert_value.ToDecimal (nf_provider));
2110 else if (conversionType.Equals (typeof (Double)))
2111 return (object)(convert_value.ToDouble (nf_provider));
2112 else if (conversionType.Equals (typeof (Int16)))
2113 return (object)(convert_value.ToInt16 (nf_provider));
2114 else if (conversionType.Equals (typeof (Int32)))
2115 return (object)(convert_value.ToInt32 (nf_provider));
2116 else if (conversionType.Equals (typeof (Int64)))
2117 return (object)(convert_value.ToInt64 (nf_provider));
2118 else if (conversionType.Equals (typeof (SByte)))
2119 return (object)(convert_value.ToSByte (nf_provider));
2120 else if (conversionType.Equals (typeof (Single)))
2121 return (object)(convert_value.ToSingle (nf_provider));
2122 else if (conversionType.Equals (typeof (String)))
2123 return (object)(convert_value.ToString (nf_provider));
2124 else if (conversionType.Equals (typeof (UInt16)))
2125 return (object)(convert_value.ToUInt16 (nf_provider));
2126 else if (conversionType.Equals (typeof (UInt32)))
2127 return (object)(convert_value.ToUInt32 (nf_provider));
2128 else if (conversionType.Equals (typeof (UInt64)))
2129 return (object)(convert_value.ToUInt64 (nf_provider));
2130 else if (conversionType.Equals (typeof (Object)))
2131 return (object)(value);
2141 // This is needed, because enumerations from assemblies
2142 // do not report their underlyingtype, but they report
2145 public static Type EnumToUnderlying (Type t)
2147 if (t == TypeManager.enum_type)
2150 t = t.UnderlyingSystemType;
2151 if (!TypeManager.IsEnumType (t))
2154 if (t is TypeBuilder) {
2155 // slow path needed to compile corlib
2156 if (t == TypeManager.bool_type ||
2157 t == TypeManager.byte_type ||
2158 t == TypeManager.sbyte_type ||
2159 t == TypeManager.char_type ||
2160 t == TypeManager.short_type ||
2161 t == TypeManager.ushort_type ||
2162 t == TypeManager.int32_type ||
2163 t == TypeManager.uint32_type ||
2164 t == TypeManager.int64_type ||
2165 t == TypeManager.uint64_type)
2167 throw new Exception ("Unhandled typecode in enum " + " from " + t.AssemblyQualifiedName);
2169 TypeCode tc = Type.GetTypeCode (t);
2172 case TypeCode.Boolean:
2173 return TypeManager.bool_type;
2175 return TypeManager.byte_type;
2176 case TypeCode.SByte:
2177 return TypeManager.sbyte_type;
2179 return TypeManager.char_type;
2180 case TypeCode.Int16:
2181 return TypeManager.short_type;
2182 case TypeCode.UInt16:
2183 return TypeManager.ushort_type;
2184 case TypeCode.Int32:
2185 return TypeManager.int32_type;
2186 case TypeCode.UInt32:
2187 return TypeManager.uint32_type;
2188 case TypeCode.Int64:
2189 return TypeManager.int64_type;
2190 case TypeCode.UInt64:
2191 return TypeManager.uint64_type;
2193 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
2197 // When compiling corlib and called with one of the core types, return
2198 // the corresponding typebuilder for that type.
2200 public static Type TypeToCoreType (Type t)
2202 if (RootContext.StdLib || (t is TypeBuilder))
2205 TypeCode tc = Type.GetTypeCode (t);
2208 case TypeCode.Boolean:
2209 return TypeManager.bool_type;
2211 return TypeManager.byte_type;
2212 case TypeCode.SByte:
2213 return TypeManager.sbyte_type;
2215 return TypeManager.char_type;
2216 case TypeCode.Int16:
2217 return TypeManager.short_type;
2218 case TypeCode.UInt16:
2219 return TypeManager.ushort_type;
2220 case TypeCode.Int32:
2221 return TypeManager.int32_type;
2222 case TypeCode.UInt32:
2223 return TypeManager.uint32_type;
2224 case TypeCode.Int64:
2225 return TypeManager.int64_type;
2226 case TypeCode.UInt64:
2227 return TypeManager.uint64_type;
2228 case TypeCode.Single:
2229 return TypeManager.float_type;
2230 case TypeCode.Double:
2231 return TypeManager.double_type;
2232 case TypeCode.String:
2233 return TypeManager.string_type;
2235 if (t == typeof (void))
2236 return TypeManager.void_type;
2237 if (t == typeof (object))
2238 return TypeManager.object_type;
2239 if (t == typeof (System.Type))
2240 return TypeManager.type_type;
2241 if (t == typeof (System.IntPtr))
2242 return TypeManager.intptr_type;
2248 /// Utility function that can be used to probe whether a type
2249 /// is managed or not.
2251 public static bool VerifyUnManaged (Type t, Location loc)
2253 if (t.IsValueType || t.IsPointer){
2255 // FIXME: this is more complex, we actually need to
2256 // make sure that the type does not contain any
2262 if (!RootContext.StdLib && (t == TypeManager.decimal_type))
2263 // We need this explicit check here to make it work when
2264 // compiling corlib.
2269 "Cannot take the address or size of a variable of a managed type ('" +
2270 CSharpName (t) + "')");
2275 /// Returns the name of the indexer in a given type.
2278 /// The default is not always `Item'. The user can change this behaviour by
2279 /// using the IndexerNameAttribute in the container.
2280 /// For example, the String class indexer is named `Chars' not `Item'
2282 public static string IndexerPropertyName (Type t)
2284 if (t is TypeBuilder) {
2285 TypeContainer tc = t.IsInterface ? LookupInterface (t) : LookupTypeContainer (t);
2286 return tc == null ? TypeContainer.DefaultIndexerName : tc.IndexerName;
2289 System.Attribute attr = System.Attribute.GetCustomAttribute (
2290 t, TypeManager.default_member_type);
2292 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
2293 return dma.MemberName;
2296 return TypeContainer.DefaultIndexerName;
2299 static MethodInfo declare_local_method = null;
2301 public static LocalBuilder DeclareLocalPinned (ILGenerator ig, Type t)
2303 if (declare_local_method == null){
2304 declare_local_method = typeof (ILGenerator).GetMethod (
2306 BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
2308 new Type [] { typeof (Type), typeof (bool)},
2310 if (declare_local_method == null){
2311 Report.Warning (-24, new Location (-1),
2312 "This version of the runtime does not support making pinned local variables. " +
2313 "This code may cause errors on a runtime with a moving GC");
2314 return ig.DeclareLocal (t);
2317 return (LocalBuilder) declare_local_method.Invoke (ig, new object [] { t, true });
2321 // Returns whether the array of memberinfos contains the given method
2323 public static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
2325 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
2327 foreach (MethodBase method in array) {
2328 if (method.Name != new_method.Name)
2331 if (method is MethodInfo && new_method is MethodInfo)
2332 if (((MethodInfo) method).ReturnType != ((MethodInfo) new_method).ReturnType)
2336 Type [] old_args = TypeManager.GetArgumentTypes (method);
2337 int old_count = old_args.Length;
2340 if (new_args.Length != old_count)
2343 for (i = 0; i < old_count; i++){
2344 if (old_args [i] != new_args [i])
2357 // We copy methods from `new_members' into `target_list' if the signature
2358 // for the method from in the new list does not exist in the target_list
2360 // The name is assumed to be the same.
2362 public static ArrayList CopyNewMethods (ArrayList target_list, IList new_members)
2364 if (target_list == null){
2365 target_list = new ArrayList ();
2367 foreach (MemberInfo mi in new_members){
2368 if (mi is MethodBase)
2369 target_list.Add (mi);
2374 MemberInfo [] target_array = new MemberInfo [target_list.Count];
2375 target_list.CopyTo (target_array, 0);
2377 foreach (MemberInfo mi in new_members){
2378 MethodBase new_method = (MethodBase) mi;
2380 if (!ArrayContainsMethod (target_array, new_method))
2381 target_list.Add (new_method);
2387 #region MemberLookup implementation
2390 // Whether we allow private members in the result (since FindMembers
2391 // uses NonPublic for both protected and private), we need to distinguish.
2394 static internal bool FilterNone (MemberInfo m, object filter_criteria)
2399 internal class Closure {
2400 internal bool private_ok;
2402 // Who is invoking us and which type is being queried currently.
2403 internal Type invocation_type;
2404 internal Type qualifier_type;
2406 // The assembly that defines the type is that is calling us
2407 internal Assembly invocation_assembly;
2408 internal IList almost_match;
2410 private bool CheckValidFamilyAccess (bool is_static, MemberInfo m)
2412 if (invocation_type == null)
2415 Debug.Assert (IsSubclassOrNestedChildOf (invocation_type, m.DeclaringType));
2420 // A nested class has access to all the protected members visible to its parent.
2421 if (qualifier_type != null
2422 && TypeManager.IsNestedChildOf (invocation_type, qualifier_type))
2425 if (invocation_type == m.DeclaringType
2426 || invocation_type.IsSubclassOf (m.DeclaringType)) {
2427 // Although a derived class can access protected members of its base class
2428 // it cannot do so through an instance of the base class (CS1540).
2429 // => Ancestry should be: declaring_type ->* invocation_type ->* qualified_type
2430 if (qualifier_type == null
2431 || qualifier_type == invocation_type
2432 || qualifier_type.IsSubclassOf (invocation_type))
2436 if (almost_match != null)
2437 almost_match.Add (m);
2442 // This filter filters by name + whether it is ok to include private
2443 // members in the search
2445 internal bool Filter (MemberInfo m, object filter_criteria)
2448 // Hack: we know that the filter criteria will always be in the `closure'
2452 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2455 if (((qualifier_type == null) || (qualifier_type == invocation_type)) &&
2456 (m.DeclaringType == invocation_type))
2460 // Ugly: we need to find out the type of `m', and depending
2461 // on this, tell whether we accept or not
2463 if (m is MethodBase){
2464 MethodBase mb = (MethodBase) m;
2465 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2467 if (ma == MethodAttributes.Private)
2468 return private_ok || (invocation_type == m.DeclaringType) ||
2469 IsNestedChildOf (invocation_type, m.DeclaringType);
2471 // Assembly succeeds if we're in the same assembly.
2472 if (ma == MethodAttributes.Assembly)
2473 return (invocation_assembly == mb.DeclaringType.Assembly);
2475 // FamAndAssem requires that we not only derive, but we are on the same assembly.
2476 if (ma == MethodAttributes.FamANDAssem){
2477 if (invocation_assembly != mb.DeclaringType.Assembly)
2481 // Family and FamANDAssem require that we derive.
2482 if ((ma == MethodAttributes.Family) || (ma == MethodAttributes.FamANDAssem))
2483 return CheckValidFamilyAccess (mb.IsStatic, m);
2489 if (m is FieldInfo){
2490 FieldInfo fi = (FieldInfo) m;
2491 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2493 if (fa == FieldAttributes.Private)
2494 return private_ok || (invocation_type == m.DeclaringType) ||
2495 IsNestedChildOf (invocation_type, m.DeclaringType);
2497 // Assembly succeeds if we're in the same assembly.
2498 if (fa == FieldAttributes.Assembly)
2499 return (invocation_assembly == fi.DeclaringType.Assembly);
2501 // FamAndAssem requires that we not only derive, but we are on the same assembly.
2502 if (fa == FieldAttributes.FamANDAssem){
2503 if (invocation_assembly != fi.DeclaringType.Assembly)
2507 // Family and FamANDAssem require that we derive.
2508 if ((fa == FieldAttributes.Family) || (fa == FieldAttributes.FamANDAssem))
2509 return CheckValidFamilyAccess (fi.IsStatic, m);
2516 // EventInfos and PropertyInfos, return true because they lack permission
2517 // information, so we need to check later on the methods.
2523 static Closure closure = new Closure ();
2524 static MemberFilter FilterWithClosure_delegate = new MemberFilter (closure.Filter);
2527 // Looks up a member called `name' in the `queried_type'. This lookup
2528 // is done by code that is contained in the definition for `invocation_type'
2529 // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
2531 // `invocation_type' is used to check whether we're allowed to access the requested
2532 // member wrt its protection level.
2534 // When called from MemberAccess, `qualifier_type' is the type which is used to access
2535 // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
2536 // is B and qualifier_type is A). This is used to do the CS1540 check.
2538 // When resolving a SimpleName, `qualifier_type' is null.
2540 // The `qualifier_type' is used for the CS1540 check; it's normally either null or
2541 // the same than `queried_type' - except when we're being called from BaseAccess;
2542 // in this case, `invocation_type' is the current type and `queried_type' the base
2543 // type, so this'd normally trigger a CS1540.
2545 // The binding flags are `bf' and the kind of members being looked up are `mt'
2547 // The return value always includes private members which code in `invocation_type'
2548 // is allowed to access (using the specified `qualifier_type' if given); only use
2549 // BindingFlags.NonPublic to bypass the permission check.
2551 // The 'almost_match' argument is used for reporting error CS1540.
2553 // Returns an array of a single element for everything but Methods/Constructors
2554 // that might return multiple matches.
2556 public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_type,
2557 Type queried_type, MemberTypes mt,
2558 BindingFlags original_bf, string name, IList almost_match)
2560 Timer.StartTimer (TimerType.MemberLookup);
2562 MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_type,
2563 queried_type, mt, original_bf, name, almost_match);
2565 Timer.StopTimer (TimerType.MemberLookup);
2570 static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_type,
2571 Type queried_type, MemberTypes mt,
2572 BindingFlags original_bf, string name, IList almost_match)
2574 BindingFlags bf = original_bf;
2576 ArrayList method_list = null;
2577 Type current_type = queried_type;
2578 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2579 bool skip_iface_check = true, used_cache = false;
2580 bool always_ok_flag = false;
2582 closure.invocation_type = invocation_type;
2583 closure.invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2584 closure.qualifier_type = qualifier_type;
2585 closure.almost_match = almost_match;
2588 // If we are a nested class, we always have access to our container
2591 if (invocation_type != null){
2592 string invocation_name = invocation_type.FullName;
2593 if (invocation_name.IndexOf ('+') != -1){
2594 string container = queried_type.FullName + "+";
2595 int container_length = container.Length;
2597 if (invocation_name.Length > container_length){
2598 string shared = invocation_name.Substring (0, container_length);
2600 if (shared == container)
2601 always_ok_flag = true;
2606 // This is from the first time we find a method
2607 // in most cases, we do not actually find a method in the base class
2608 // so we can just ignore it, and save the arraylist allocation
2609 MemberInfo [] first_members_list = null;
2610 bool use_first_members_list = false;
2616 // `NonPublic' is lame, because it includes both protected and
2617 // private methods, so we need to control this behavior by
2618 // explicitly tracking if a private method is ok or not.
2620 // The possible cases are:
2621 // public, private and protected (internal does not come into the
2624 if ((invocation_type != null) &&
2625 ((invocation_type == current_type) ||
2626 IsNestedChildOf (invocation_type, current_type)) ||
2628 bf = original_bf | BindingFlags.NonPublic;
2632 closure.private_ok = (original_bf & BindingFlags.NonPublic) != 0;
2634 Timer.StopTimer (TimerType.MemberLookup);
2636 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2638 Timer.StartTimer (TimerType.MemberLookup);
2641 // When queried for an interface type, the cache will automatically check all
2642 // inherited members, so we don't need to do this here. However, this only
2643 // works if we already used the cache in the first iteration of this loop.
2645 // If we used the cache in any further iteration, we can still terminate the
2646 // loop since the cache always looks in all parent classes.
2652 skip_iface_check = false;
2654 if (current_type == TypeManager.object_type)
2657 current_type = current_type.BaseType;
2660 // This happens with interfaces, they have a null
2661 // basetype. Look members up in the Object class.
2663 if (current_type == null) {
2664 current_type = TypeManager.object_type;
2669 if (list.Length == 0)
2673 // Events and types are returned by both `static' and `instance'
2674 // searches, which means that our above FindMembers will
2675 // return two copies of the same.
2677 if (list.Length == 1 && !(list [0] is MethodBase)){
2682 // Multiple properties: we query those just to find out the indexer
2685 if (list [0] is PropertyInfo)
2689 // We found an event: the cache lookup returns both the event and
2690 // its private field.
2692 if (list [0] is EventInfo) {
2693 if ((list.Length == 2) && (list [1] is FieldInfo))
2694 return new MemberInfo [] { list [0] };
2701 // We found methods, turn the search into "method scan"
2705 if (first_members_list != null) {
2706 if (use_first_members_list) {
2707 method_list = CopyNewMethods (method_list, first_members_list);
2708 use_first_members_list = false;
2711 method_list = CopyNewMethods (method_list, list);
2713 first_members_list = list;
2714 use_first_members_list = true;
2715 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2717 } while (searching);
2719 if (use_first_members_list) {
2720 foreach (MemberInfo mi in first_members_list) {
2721 if (! (mi is MethodBase)) {
2722 method_list = CopyNewMethods (method_list, first_members_list);
2723 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2726 return (MemberInfo []) first_members_list;
2729 if (method_list != null && method_list.Count > 0)
2730 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2733 // This happens if we already used the cache in the first iteration, in this case
2734 // the cache already looked in all interfaces.
2736 if (skip_iface_check)
2740 // Interfaces do not list members they inherit, so we have to
2743 if (!queried_type.IsInterface)
2746 if (queried_type.IsArray)
2747 queried_type = TypeManager.array_type;
2749 Type [] ifaces = GetInterfaces (queried_type);
2753 foreach (Type itype in ifaces){
2756 x = MemberLookup (null, null, itype, mt, bf, name, null);
2764 // Tests whether external method is really special
2765 public static bool IsSpecialMethod (MethodBase mb)
2767 string name = mb.Name;
2768 if (name.StartsWith ("get_") || name.StartsWith ("set_"))
2769 return mb.DeclaringType.GetProperty (name.Substring (4)) != null;
2771 if (name.StartsWith ("add_"))
2772 return mb.DeclaringType.GetEvent (name.Substring (4)) != null;
2774 if (name.StartsWith ("remove_"))
2775 return mb.DeclaringType.GetEvent (name.Substring (7)) != null;
2777 if (name.StartsWith ("op_")){
2778 foreach (string oname in Unary.oper_names) {
2783 foreach (string oname in Binary.oper_names) {
2796 /// There is exactly one instance of this class per type.
2798 public sealed class TypeHandle : IMemberContainer {
2799 public readonly TypeHandle BaseType;
2801 readonly int id = ++next_id;
2802 static int next_id = 0;
2805 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2806 /// a TypeHandle yet, a new instance of it is created. This static method
2807 /// ensures that we'll only have one TypeHandle instance per type.
2809 private static TypeHandle GetTypeHandle (Type t)
2811 TypeHandle handle = (TypeHandle) type_hash [t];
2815 handle = new TypeHandle (t);
2816 type_hash.Add (t, handle);
2820 public static MemberCache GetMemberCache (Type t)
2822 return GetTypeHandle (t).MemberCache;
2825 public static void CleanUp ()
2831 /// Returns the TypeHandle for TypeManager.object_type.
2833 public static IMemberContainer ObjectType {
2835 if (object_type != null)
2838 object_type = GetTypeHandle (TypeManager.object_type);
2845 /// Returns the TypeHandle for TypeManager.array_type.
2847 public static IMemberContainer ArrayType {
2849 if (array_type != null)
2852 array_type = GetTypeHandle (TypeManager.array_type);
2858 private static PtrHashtable type_hash = new PtrHashtable ();
2860 private static TypeHandle object_type = null;
2861 private static TypeHandle array_type = null;
2864 private bool is_interface;
2865 private MemberCache member_cache;
2866 private MemberCache parent_cache;
2868 private TypeHandle (Type type)
2871 if (type.BaseType != null) {
2872 BaseType = GetTypeHandle (type.BaseType);
2873 parent_cache = BaseType.MemberCache;
2874 } else if (type.IsInterface)
2875 parent_cache = TypeManager.LookupParentInterfacesCache (type);
2876 this.is_interface = type.IsInterface;
2877 this.member_cache = new MemberCache (this);
2880 // IMemberContainer methods
2882 public string Name {
2884 return type.FullName;
2894 public MemberCache ParentCache {
2896 return parent_cache;
2900 public bool IsInterface {
2902 return is_interface;
2906 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
2908 MemberInfo [] members;
2909 if (mt == MemberTypes.Event)
2910 members = type.GetEvents (bf | BindingFlags.DeclaredOnly);
2912 members = type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
2914 Array.Reverse (members);
2916 return new MemberList (members);
2919 // IMemberFinder methods
2921 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
2922 MemberFilter filter, object criteria)
2924 return new MemberList (member_cache.FindMembers (mt, bf, name, filter, criteria));
2927 public MemberCache MemberCache {
2929 return member_cache;
2933 public override string ToString ()
2935 if (BaseType != null)
2936 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
2938 return "TypeHandle (" + id + "," + Name + ")";