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 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 out_attribute_type;
92 static public Type anonymous_method_type;
93 static public Type cls_compliant_attribute_type;
94 static public Type typed_reference_type;
95 static public Type arg_iterator_type;
96 static public Type mbr_type;
97 static public Type struct_layout_attribute_type;
98 static public Type field_offset_attribute_type;
99 static public Type security_attr_type;
100 static public Type required_attr_type;
101 static public Type guid_attr_type;
102 static public Type assembly_culture_attribute_type;
108 static internal Type compiler_generated_attr_type;
109 static internal Type fixed_buffer_attr_type;
110 static internal Type default_charset_type;
114 // An empty array of types
116 static public Type [] NoTypes;
117 static public TypeExpr [] NoTypeExprs;
121 // Expressions representing the internal types. Used during declaration
124 static public TypeExpr system_object_expr, system_string_expr;
125 static public TypeExpr system_boolean_expr, system_decimal_expr;
126 static public TypeExpr system_single_expr, system_double_expr;
127 static public TypeExpr system_sbyte_expr, system_byte_expr;
128 static public TypeExpr system_int16_expr, system_uint16_expr;
129 static public TypeExpr system_int32_expr, system_uint32_expr;
130 static public TypeExpr system_int64_expr, system_uint64_expr;
131 static public TypeExpr system_char_expr, system_void_expr;
132 static public TypeExpr system_asynccallback_expr;
133 static public TypeExpr system_iasyncresult_expr;
134 static public TypeExpr system_valuetype_expr;
135 static public TypeExpr system_intptr_expr;
138 // This is only used when compiling corlib
140 static public Type system_int32_type;
141 static public Type system_array_type;
142 static public Type system_type_type;
143 static public Type system_assemblybuilder_type;
144 static public MethodInfo system_int_array_get_length;
145 static public MethodInfo system_int_array_get_rank;
146 static public MethodInfo system_object_array_clone;
147 static public MethodInfo system_int_array_get_length_int;
148 static public MethodInfo system_int_array_get_lower_bound_int;
149 static public MethodInfo system_int_array_get_upper_bound_int;
150 static public MethodInfo system_void_array_copyto_array_int;
154 // Internal, not really used outside
156 static Type runtime_helpers_type;
159 // These methods are called by code generated by the compiler
161 static public MethodInfo string_concat_string_string;
162 static public MethodInfo string_concat_string_string_string;
163 static public MethodInfo string_concat_string_string_string_string;
164 static public MethodInfo string_concat_string_dot_dot_dot;
165 static public MethodInfo string_concat_object_object;
166 static public MethodInfo string_concat_object_object_object;
167 static public MethodInfo string_concat_object_dot_dot_dot;
168 static public MethodInfo string_isinterneted_string;
169 static public MethodInfo system_type_get_type_from_handle;
170 static public MethodInfo bool_movenext_void;
171 static public MethodInfo ienumerable_getenumerator_void;
172 static public MethodInfo void_reset_void;
173 static public MethodInfo void_dispose_void;
174 static public MethodInfo void_monitor_enter_object;
175 static public MethodInfo void_monitor_exit_object;
176 static public MethodInfo void_initializearray_array_fieldhandle;
177 static public MethodInfo int_getlength_int;
178 static public MethodInfo delegate_combine_delegate_delegate;
179 static public MethodInfo delegate_remove_delegate_delegate;
180 static public MethodInfo int_get_offset_to_string_data;
181 static public MethodInfo int_array_get_length;
182 static public MethodInfo int_array_get_rank;
183 static public MethodInfo object_array_clone;
184 static public MethodInfo int_array_get_length_int;
185 static public MethodInfo int_array_get_lower_bound_int;
186 static public MethodInfo int_array_get_upper_bound_int;
187 static public MethodInfo void_array_copyto_array_int;
188 static public PropertyInfo ienumerator_getcurrent;
191 // The attribute constructors.
193 static public ConstructorInfo object_ctor;
194 static public ConstructorInfo cons_param_array_attribute;
195 static public ConstructorInfo void_decimal_ctor_five_args;
196 static public ConstructorInfo void_decimal_ctor_int_arg;
197 static public ConstructorInfo unverifiable_code_ctor;
198 static public ConstructorInfo default_member_ctor;
199 static public ConstructorInfo decimal_constant_attribute_ctor;
200 static internal ConstructorInfo struct_layout_attribute_ctor;
201 static public ConstructorInfo field_offset_attribute_ctor;
207 static internal CustomAttributeBuilder compiler_generated_attr;
208 static internal ConstructorInfo fixed_buffer_attr_ctor;
212 // Holds the Array of Assemblies that have been loaded
213 // (either because it is the default or the user used the
214 // -r command line option)
216 static Assembly [] assemblies;
219 // Keeps a list of modules. We used this to do lookups
220 // on the module using GetType -- needed for arrays
222 static Module [] modules;
225 // This is the type_cache from the assemblies to avoid
226 // hitting System.Reflection on every lookup.
228 static Hashtable types;
231 // This is used to hotld the corresponding TypeContainer objects
232 // since we need this in FindMembers
234 static Hashtable typecontainers;
237 // Keeps track of those types that are defined by the
240 static ArrayList user_types;
242 static PtrHashtable builder_to_declspace;
244 static PtrHashtable builder_to_member_cache;
247 // Tracks the interfaces implemented by typebuilders. We only
248 // enter those who do implement or or more interfaces
250 static PtrHashtable builder_to_ifaces;
253 // Maps MethodBase.RuntimeTypeHandle to a Type array that contains
254 // the arguments to the method
256 static Hashtable method_arguments;
259 // Maps PropertyBuilder to a Type array that contains
260 // the arguments to the indexer
262 static Hashtable indexer_arguments;
265 // Maps a MethodBase to its ParameterData (either InternalParameters or ReflectionParameters)
267 static Hashtable method_params;
270 // A hash table from override methods to their base virtual method.
272 static Hashtable method_overrides;
275 // Keeps track of methods
278 static Hashtable builder_to_method;
281 // Contains all public types from referenced assemblies.
282 // This member is used only if CLS Compliance verification is required.
284 public static Hashtable all_imported_types;
286 static Hashtable fieldbuilders_to_fields;
287 static Hashtable fields;
294 public static void CleanUp ()
296 // Lets get everything clean so that we can collect before generating code
300 typecontainers = null;
302 builder_to_declspace = null;
303 builder_to_member_cache = null;
304 builder_to_ifaces = null;
305 method_arguments = null;
306 indexer_arguments = null;
307 method_params = null;
308 builder_to_method = null;
311 builder_to_constant = null;
312 fieldbuilders_to_fields = null;
314 priv_fields_events = null;
318 TypeHandle.CleanUp ();
322 /// A filter for Findmembers that uses the Signature object to
325 static bool SignatureFilter (MemberInfo mi, object criteria)
327 Signature sig = (Signature) criteria;
329 if (!(mi is MethodBase))
332 if (mi.Name != sig.name)
335 int count = sig.args.Length;
337 if (mi is MethodBuilder || mi is ConstructorBuilder){
338 Type [] candidate_args = GetArgumentTypes ((MethodBase) mi);
340 if (candidate_args.Length != count)
343 for (int i = 0; i < count; i++)
344 if (candidate_args [i] != sig.args [i])
349 ParameterInfo [] pars = ((MethodBase) mi).GetParameters ();
351 if (pars.Length != count)
354 for (int i = 0; i < count; i++)
355 if (pars [i].ParameterType != sig.args [i])
361 // A delegate that points to the filter above.
362 static MemberFilter signature_filter;
365 // These are expressions that represent some of the internal data types, used
368 static void InitExpressionTypes ()
370 system_object_expr = new TypeLookupExpression ("System.Object");
371 system_string_expr = new TypeLookupExpression ("System.String");
372 system_boolean_expr = new TypeLookupExpression ("System.Boolean");
373 system_decimal_expr = new TypeLookupExpression ("System.Decimal");
374 system_single_expr = new TypeLookupExpression ("System.Single");
375 system_double_expr = new TypeLookupExpression ("System.Double");
376 system_sbyte_expr = new TypeLookupExpression ("System.SByte");
377 system_byte_expr = new TypeLookupExpression ("System.Byte");
378 system_int16_expr = new TypeLookupExpression ("System.Int16");
379 system_uint16_expr = new TypeLookupExpression ("System.UInt16");
380 system_int32_expr = new TypeLookupExpression ("System.Int32");
381 system_uint32_expr = new TypeLookupExpression ("System.UInt32");
382 system_int64_expr = new TypeLookupExpression ("System.Int64");
383 system_uint64_expr = new TypeLookupExpression ("System.UInt64");
384 system_char_expr = new TypeLookupExpression ("System.Char");
385 system_void_expr = new TypeLookupExpression ("System.Void");
386 system_asynccallback_expr = new TypeLookupExpression ("System.AsyncCallback");
387 system_iasyncresult_expr = new TypeLookupExpression ("System.IAsyncResult");
388 system_valuetype_expr = new TypeLookupExpression ("System.ValueType");
389 system_intptr_expr = new TypeLookupExpression ("System.IntPtr");
392 static TypeManager ()
396 signature_filter = new MemberFilter (SignatureFilter);
397 InitExpressionTypes ();
400 static public void Reset ()
402 assemblies = new Assembly [0];
404 user_types = new ArrayList ();
406 types = new Hashtable ();
407 typecontainers = new Hashtable ();
409 builder_to_declspace = new PtrHashtable ();
410 builder_to_member_cache = new PtrHashtable ();
411 builder_to_method = new PtrHashtable ();
412 method_arguments = new PtrHashtable ();
413 method_params = new PtrHashtable ();
414 method_overrides = new PtrHashtable ();
415 indexer_arguments = new PtrHashtable ();
416 builder_to_ifaces = new PtrHashtable ();
418 NoTypes = new Type [0];
419 NoTypeExprs = new TypeExpr [0];
421 fieldbuilders_to_fields = new Hashtable ();
422 fields = new Hashtable ();
423 type_hash = new DoubleHash ();
426 public static void HandleDuplicate (string name, Type t)
428 Type prev = (Type) types [name];
429 TypeContainer tc = builder_to_declspace [prev] as TypeContainer;
433 // This probably never happens, as we catch this before
435 Report.Error (-17, "The type `" + name + "' has already been defined.");
439 tc = builder_to_declspace [t] as TypeContainer;
442 1595, "The type `" + name + "' is defined in an existing assembly;"+
443 " Using the new definition from: " + tc.Location);
446 1595, "The type `" + name + "' is defined in an existing assembly;");
449 Report.Warning (1595, "Previously defined in: " + prev.Assembly.FullName);
455 public static void AddUserType (string name, TypeBuilder t)
460 HandleDuplicate (name, t);
467 // This entry point is used by types that we define under the covers
469 public static void RegisterBuilder (Type tb, Type [] ifaces)
472 builder_to_ifaces [tb] = ifaces;
475 public static void AddUserType (string name, TypeBuilder t, TypeContainer tc)
477 builder_to_declspace.Add (t, tc);
478 typecontainers.Add (name, tc);
479 AddUserType (name, t);
482 public static void AddDelegateType (string name, TypeBuilder t, Delegate del)
487 HandleDuplicate (name, t);
490 builder_to_declspace.Add (t, del);
493 public static void AddEnumType (string name, TypeBuilder t, Enum en)
498 HandleDuplicate (name, t);
500 builder_to_declspace.Add (t, en);
503 public static void AddMethod (MethodBase builder, IMethodData method)
505 builder_to_method.Add (builder, method);
508 public static IMethodData GetMethod (MethodBase builder)
510 return (IMethodData) builder_to_method [builder];
514 /// Returns the DeclSpace whose Type is `t' or null if there is no
515 /// DeclSpace for `t' (ie, the Type comes from a library)
517 public static DeclSpace LookupDeclSpace (Type t)
519 return builder_to_declspace [t] as DeclSpace;
523 /// Returns the TypeContainer whose Type is `t' or null if there is no
524 /// TypeContainer for `t' (ie, the Type comes from a library)
526 public static TypeContainer LookupTypeContainer (Type t)
528 return builder_to_declspace [t] as TypeContainer;
531 public static MemberCache LookupMemberCache (Type t)
533 if (t is TypeBuilder) {
534 IMemberContainer container = builder_to_declspace [t] as IMemberContainer;
535 if (container != null)
536 return container.MemberCache;
539 return TypeHandle.GetMemberCache (t);
542 public static MemberCache LookupBaseInterfacesCache (Type t)
544 Type [] ifaces = t.GetInterfaces ();
546 if (ifaces != null && ifaces.Length == 1)
547 return LookupMemberCache (ifaces [0]);
549 // TODO: the builder_to_member_cache should be indexed by 'ifaces', not 't'
550 MemberCache cache = builder_to_member_cache [t] as MemberCache;
554 cache = new MemberCache (ifaces);
555 builder_to_member_cache.Add (t, cache);
559 public static TypeContainer LookupInterface (Type t)
561 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
562 if ((tc == null) || (tc.Kind != Kind.Interface))
568 public static Delegate LookupDelegate (Type t)
570 return builder_to_declspace [t] as Delegate;
573 public static Enum LookupEnum (Type t)
575 return builder_to_declspace [t] as Enum;
578 public static Class LookupClass (Type t)
580 return (Class) builder_to_declspace [t];
584 /// Registers an assembly to load types from.
586 public static void AddAssembly (Assembly a)
588 foreach (Assembly assembly in assemblies) {
593 int top = assemblies.Length;
594 Assembly [] n = new Assembly [top + 1];
596 assemblies.CopyTo (n, 0);
602 public static Assembly [] GetAssemblies ()
608 /// Registers a module builder to lookup types from
610 public static void AddModule (Module mb)
612 int top = modules != null ? modules.Length : 0;
613 Module [] n = new Module [top + 1];
616 modules.CopyTo (n, 0);
621 public static Module[] Modules {
628 // We use this hash for multiple kinds of constructed types:
630 // (T, "&") Given T, get T &
631 // (T, "*") Given T, get T *
632 // (T, "[]") Given T and a array dimension, get T []
633 // (T, X) Given a type T and a simple name X, get the type T+X
635 // Accessibility tests, if necessary, should be done by the user
637 static DoubleHash type_hash = new DoubleHash ();
640 // Gets the reference to T version of the Type (T&)
642 public static Type GetReferenceType (Type t)
644 return GetConstructedType (t, "&");
648 // Gets the pointer to T version of the Type (T*)
650 public static Type GetPointerType (Type t)
652 return GetConstructedType (t, "*");
655 public static Type GetConstructedType (Type t, string dim)
658 if (!type_hash.Lookup (t, dim, out ret)) {
659 ret = t.Module.GetType (t.ToString () + dim);
660 type_hash.Insert (t, dim, ret);
665 public static Type GetNestedType (Type t, string name)
668 if (!type_hash.Lookup (t, name, out ret)) {
669 string lookup = t.ToString () + "+" + name;
670 ret = t.Module.GetType (lookup);
671 type_hash.Insert (t, name, ret);
676 public static Type LookupTypeReflection (string name)
680 foreach (Assembly a in assemblies) {
681 t = a.GetType (name);
684 throw new InternalErrorException ("Use GetPointerType() to get a pointer");
685 TypeAttributes ta = t.Attributes & TypeAttributes.VisibilityMask;
686 if (ta != TypeAttributes.NotPublic &&
687 ta != TypeAttributes.NestedPrivate &&
688 ta != TypeAttributes.NestedAssembly &&
689 ta != TypeAttributes.NestedFamANDAssem)
694 foreach (Module mb in modules) {
695 t = mb.GetType (name);
704 /// Computes the namespaces that we import from the assemblies we reference.
706 public static void ComputeNamespaces ()
708 MethodInfo assembly_get_namespaces = typeof (Assembly).GetMethod ("GetNamespaces", BindingFlags.Instance|BindingFlags.NonPublic);
710 Hashtable cache = null;
713 // First add the assembly namespaces
715 if (assembly_get_namespaces != null){
716 int count = assemblies.Length;
718 for (int i = 0; i < count; i++){
719 Assembly a = assemblies [i];
720 string [] namespaces = (string []) assembly_get_namespaces.Invoke (a, null);
721 foreach (string ns in namespaces){
724 Namespace.LookupNamespace (ns, true);
728 cache = new Hashtable ();
729 cache.Add ("", null);
730 foreach (Assembly a in assemblies) {
731 foreach (Type t in a.GetExportedTypes ()) {
732 string ns = t.Namespace;
733 if (ns == null || cache.Contains (ns))
736 Namespace.LookupNamespace (ns, true);
737 cache.Add (ns, null);
743 // Then add module namespaces
745 foreach (Module m in modules) {
746 if (m == CodeGen.Module.Builder)
749 cache = new Hashtable ();
750 cache.Add ("", null);
752 foreach (Type t in m.GetTypes ()) {
753 string ns = t.Namespace;
754 if (ns == null || cache.Contains (ns))
756 Namespace.LookupNamespace (ns, true);
757 cache.Add (ns, null);
763 /// Fills static table with exported types from all referenced assemblies.
764 /// This information is required for CLS Compliance tests.
766 public static void LoadAllImportedTypes ()
768 all_imported_types = new Hashtable ();
769 foreach (Assembly a in assemblies) {
770 foreach (Type t in a.GetExportedTypes ()) {
771 all_imported_types [t.FullName] = t;
776 public static bool NamespaceClash (string name, Location loc)
778 if (Namespace.LookupNamespace (name, false) == null)
781 Report.Error (519, loc, String.Format ("`{0}' clashes with a predefined namespace", name));
786 /// Returns the C# name of a type if possible, or the full type name otherwise
788 static public string CSharpName (Type t)
790 return Regex.Replace (t.FullName,
792 @"(Int32|UInt32|Int16|UInt16|Int64|UInt64|" +
793 @"Single|Double|Char|Decimal|Byte|SByte|Object|" +
794 @"Boolean|String|Void|Null)" +
796 new MatchEvaluator (CSharpNameMatch)).Replace ('+', '.');
799 static public string CSharpName (Type[] types)
801 StringBuilder sb = new StringBuilder ();
802 foreach (Type t in types) {
803 sb.Append (CSharpName (t));
806 sb.Remove (sb.Length - 1, 1);
807 return sb.ToString ();
810 static String CSharpNameMatch (Match match)
812 string s = match.Groups [1].Captures [0].Value;
814 Replace ("int32", "int").
815 Replace ("uint32", "uint").
816 Replace ("int16", "short").
817 Replace ("uint16", "ushort").
818 Replace ("int64", "long").
819 Replace ("uint64", "ulong").
820 Replace ("single", "float").
821 Replace ("boolean", "bool")
822 + match.Groups [2].Captures [0].Value;
826 /// Returns the signature of the method with full namespace classification
828 static public string GetFullNameSignature (MemberInfo mi)
830 return (mi is MethodBase)
831 ? CSharpSignature (mi as MethodBase)
832 : CSharpName (mi.DeclaringType) + '.' + mi.Name;
836 /// When we need to report accessors as well
838 static public string CSharpSignature (MethodBase mb)
840 return CSharpSignature (mb, false);
844 /// Returns the signature of the method
846 static public string CSharpSignature (MethodBase mb, bool show_accessor)
848 StringBuilder sig = new StringBuilder (CSharpName (mb.DeclaringType));
851 ParameterData iparams = GetParameterData (mb);
852 string parameters = iparams.GetSignatureForError ();
853 string accessor = "";
856 if (mb.IsSpecialName) {
857 Operator.OpType ot = Operator.GetOperatorType (mb.Name);
858 if (ot != Operator.OpType.TOP) {
859 sig.Append ("operator ");
860 sig.Append (Operator.GetName (ot));
861 sig.Append (parameters);
862 return sig.ToString ();
865 if (mb.Name.StartsWith ("get_") || mb.Name.StartsWith ("set_")) {
866 accessor = mb.Name.Substring (0, 3);
871 if (mb.IsSpecialName && !mb.IsConstructor) {
872 if (iparams.Count > 1) {
873 sig.Append ("this[");
874 int before_ret_val = parameters.LastIndexOf (',');
875 sig.Append (parameters.Substring (1, before_ret_val - 1));
878 sig.Append (mb.Name.Substring (4));
881 if (mb.Name == ".ctor")
882 sig.Append (mb.DeclaringType.Name);
884 sig.Append (mb.Name);
886 sig.Append (parameters);
889 if (show_accessor && accessor.Length > 0) {
891 sig.Append (accessor);
894 return sig.ToString ();
897 static public string CSharpSignature (EventInfo ei)
899 return CSharpName (ei.DeclaringType) + '.' + ei.Name;
903 /// Looks up a type, and aborts if it is not found. This is used
904 /// by types required by the compiler
906 static Type CoreLookupType (string name)
909 if (types.Contains (name))
910 t = (Type) types [name];
912 t = LookupTypeReflection (name);
915 Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
922 /// Returns the MethodInfo for a method named `name' defined
923 /// in type `t' which takes arguments of types `args'
925 static MethodInfo GetMethod (Type t, string name, Type [] args, bool is_private, bool report_errors)
929 BindingFlags flags = instance_and_static | BindingFlags.Public;
935 flags |= BindingFlags.NonPublic;
937 list = FindMembers (t, MemberTypes.Method, flags, signature_filter, sig);
938 if (list.Count == 0) {
940 Report.Error (-19, "Can not find the core function `" + name + "'");
944 MethodInfo mi = list [0] as MethodInfo;
947 Report.Error (-19, "Can not find the core function `" + name + "'");
954 static MethodInfo GetMethod (Type t, string name, Type [] args, bool report_errors)
956 return GetMethod (t, name, args, false, report_errors);
959 static MethodInfo GetMethod (Type t, string name, Type [] args)
961 return GetMethod (t, name, args, true);
965 /// Returns the PropertyInfo for a property named `name' defined
968 static PropertyInfo GetProperty (Type t, string name)
970 MemberList list = FindMembers (t, MemberTypes.Property, BindingFlags.Public |
971 BindingFlags.Instance, Type.FilterName, name);
972 if (list.Count == 0) {
973 Report.Error (-19, "Can not find the core property `" + name + "'");
977 PropertyInfo pi = list [0] as PropertyInfo;
979 Report.Error (-19, "Can not find the core function `" + name + "'");
987 /// Returns the ConstructorInfo for "args"
989 public static ConstructorInfo GetConstructor (Type t, Type [] args)
997 list = FindMembers (t, MemberTypes.Constructor,
998 instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly,
999 signature_filter, sig);
1000 if (list.Count == 0){
1001 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
1005 ConstructorInfo ci = list [0] as ConstructorInfo;
1007 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
1014 public static void InitEnumUnderlyingTypes ()
1017 int32_type = CoreLookupType ("System.Int32");
1018 int64_type = CoreLookupType ("System.Int64");
1019 uint32_type = CoreLookupType ("System.UInt32");
1020 uint64_type = CoreLookupType ("System.UInt64");
1021 byte_type = CoreLookupType ("System.Byte");
1022 sbyte_type = CoreLookupType ("System.SByte");
1023 short_type = CoreLookupType ("System.Int16");
1024 ushort_type = CoreLookupType ("System.UInt16");
1028 /// The types have to be initialized after the initial
1029 /// population of the type has happened (for example, to
1030 /// bootstrap the corlib.dll
1032 public static void InitCoreTypes ()
1034 object_type = CoreLookupType ("System.Object");
1035 value_type = CoreLookupType ("System.ValueType");
1037 InitEnumUnderlyingTypes ();
1039 char_type = CoreLookupType ("System.Char");
1040 string_type = CoreLookupType ("System.String");
1041 float_type = CoreLookupType ("System.Single");
1042 double_type = CoreLookupType ("System.Double");
1043 char_ptr_type = GetPointerType (char_type);
1044 decimal_type = CoreLookupType ("System.Decimal");
1045 bool_type = CoreLookupType ("System.Boolean");
1046 enum_type = CoreLookupType ("System.Enum");
1048 multicast_delegate_type = CoreLookupType ("System.MulticastDelegate");
1049 delegate_type = CoreLookupType ("System.Delegate");
1051 array_type = CoreLookupType ("System.Array");
1052 void_type = CoreLookupType ("System.Void");
1053 type_type = CoreLookupType ("System.Type");
1055 runtime_field_handle_type = CoreLookupType ("System.RuntimeFieldHandle");
1056 runtime_argument_handle_type = CoreLookupType ("System.RuntimeArgumentHandle");
1057 runtime_helpers_type = CoreLookupType ("System.Runtime.CompilerServices.RuntimeHelpers");
1058 default_member_type = CoreLookupType ("System.Reflection.DefaultMemberAttribute");
1059 runtime_handle_type = CoreLookupType ("System.RuntimeTypeHandle");
1060 asynccallback_type = CoreLookupType ("System.AsyncCallback");
1061 iasyncresult_type = CoreLookupType ("System.IAsyncResult");
1062 ienumerator_type = CoreLookupType ("System.Collections.IEnumerator");
1063 ienumerable_type = CoreLookupType ("System.Collections.IEnumerable");
1064 idisposable_type = CoreLookupType ("System.IDisposable");
1065 icloneable_type = CoreLookupType ("System.ICloneable");
1066 iconvertible_type = CoreLookupType ("System.IConvertible");
1067 monitor_type = CoreLookupType ("System.Threading.Monitor");
1068 intptr_type = CoreLookupType ("System.IntPtr");
1070 attribute_type = CoreLookupType ("System.Attribute");
1071 attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
1072 dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
1073 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
1074 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
1075 param_array_type = CoreLookupType ("System.ParamArrayAttribute");
1076 in_attribute_type = CoreLookupType ("System.Runtime.InteropServices.InAttribute");
1077 out_attribute_type = CoreLookupType ("System.Runtime.InteropServices.OutAttribute");
1078 typed_reference_type = CoreLookupType ("System.TypedReference");
1079 arg_iterator_type = CoreLookupType ("System.ArgIterator");
1080 mbr_type = CoreLookupType ("System.MarshalByRefObject");
1081 decimal_constant_attribute_type = CoreLookupType ("System.Runtime.CompilerServices.DecimalConstantAttribute");
1083 unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
1085 void_ptr_type = GetPointerType (void_type);
1087 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
1089 exception_type = CoreLookupType ("System.Exception");
1090 invalid_operation_exception_type = CoreLookupType ("System.InvalidOperationException");
1091 not_supported_exception_type = CoreLookupType ("System.NotSupportedException");
1096 obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
1097 conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
1098 cls_compliant_attribute_type = CoreLookupType ("System.CLSCompliantAttribute");
1099 struct_layout_attribute_type = CoreLookupType ("System.Runtime.InteropServices.StructLayoutAttribute");
1100 field_offset_attribute_type = CoreLookupType ("System.Runtime.InteropServices.FieldOffsetAttribute");
1101 security_attr_type = CoreLookupType ("System.Security.Permissions.SecurityAttribute");
1102 required_attr_type = CoreLookupType ("System.Runtime.CompilerServices.RequiredAttributeAttribute");
1103 guid_attr_type = CoreLookupType ("System.Runtime.InteropServices.GuidAttribute");
1104 assembly_culture_attribute_type = CoreLookupType ("System.Reflection.AssemblyCultureAttribute");
1110 compiler_generated_attr_type = CoreLookupType ("System.Runtime.CompilerServices.CompilerGeneratedAttribute");
1111 fixed_buffer_attr_type = CoreLookupType ("System.Runtime.CompilerServices.FixedBufferAttribute");
1112 default_charset_type = CoreLookupType ("System.Runtime.InteropServices.DefaultCharSetAttribute");
1115 // When compiling corlib, store the "real" types here.
1117 if (!RootContext.StdLib) {
1118 system_int32_type = typeof (System.Int32);
1119 system_array_type = typeof (System.Array);
1120 system_type_type = typeof (System.Type);
1121 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
1123 Type [] void_arg = { };
1124 system_int_array_get_length = GetMethod (
1125 system_array_type, "get_Length", void_arg);
1126 system_int_array_get_rank = GetMethod (
1127 system_array_type, "get_Rank", void_arg);
1128 system_object_array_clone = GetMethod (
1129 system_array_type, "Clone", void_arg);
1131 Type [] system_int_arg = { system_int32_type };
1132 system_int_array_get_length_int = GetMethod (
1133 system_array_type, "GetLength", system_int_arg);
1134 system_int_array_get_upper_bound_int = GetMethod (
1135 system_array_type, "GetUpperBound", system_int_arg);
1136 system_int_array_get_lower_bound_int = GetMethod (
1137 system_array_type, "GetLowerBound", system_int_arg);
1139 Type [] system_array_int_arg = { system_array_type, system_int32_type };
1140 system_void_array_copyto_array_int = GetMethod (
1141 system_array_type, "CopyTo", system_array_int_arg);
1143 Type [] system_3_type_arg = {
1144 system_type_type, system_type_type, system_type_type };
1145 Type [] system_4_type_arg = {
1146 system_type_type, system_type_type, system_type_type, system_type_type };
1148 MethodInfo set_corlib_type_builders = GetMethod (
1149 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1150 system_4_type_arg, true, false);
1152 if (set_corlib_type_builders != null) {
1153 object[] args = new object [4];
1154 args [0] = object_type;
1155 args [1] = value_type;
1156 args [2] = enum_type;
1157 args [3] = void_type;
1159 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1161 // Compatibility for an older version of the class libs.
1162 set_corlib_type_builders = GetMethod (
1163 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1164 system_3_type_arg, true, true);
1166 if (set_corlib_type_builders == null) {
1167 Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
1171 object[] args = new object [3];
1172 args [0] = object_type;
1173 args [1] = value_type;
1174 args [2] = enum_type;
1176 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1180 system_object_expr.Type = object_type;
1181 system_string_expr.Type = string_type;
1182 system_boolean_expr.Type = bool_type;
1183 system_decimal_expr.Type = decimal_type;
1184 system_single_expr.Type = float_type;
1185 system_double_expr.Type = double_type;
1186 system_sbyte_expr.Type = sbyte_type;
1187 system_byte_expr.Type = byte_type;
1188 system_int16_expr.Type = short_type;
1189 system_uint16_expr.Type = ushort_type;
1190 system_int32_expr.Type = int32_type;
1191 system_uint32_expr.Type = uint32_type;
1192 system_int64_expr.Type = int64_type;
1193 system_uint64_expr.Type = uint64_type;
1194 system_char_expr.Type = char_type;
1195 system_void_expr.Type = void_type;
1196 system_asynccallback_expr.Type = asynccallback_type;
1197 system_iasyncresult_expr.Type = iasyncresult_type;
1198 system_valuetype_expr.Type = value_type;
1201 // These are only used for compare purposes
1203 anonymous_method_type = typeof (AnonymousMethod);
1204 null_type = typeof (NullType);
1208 // The helper methods that are used by the compiler
1210 public static void InitCodeHelpers ()
1213 // Now load the default methods that we use.
1215 Type [] string_string = { string_type, string_type };
1216 string_concat_string_string = GetMethod (
1217 string_type, "Concat", string_string);
1218 Type [] string_string_string = { string_type, string_type, string_type };
1219 string_concat_string_string_string = GetMethod (
1220 string_type, "Concat", string_string_string);
1221 Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
1222 string_concat_string_string_string_string = GetMethod (
1223 string_type, "Concat", string_string_string_string);
1224 Type[] params_string = { GetConstructedType (string_type, "[]") };
1225 string_concat_string_dot_dot_dot = GetMethod (
1226 string_type, "Concat", params_string);
1228 Type [] object_object = { object_type, object_type };
1229 string_concat_object_object = GetMethod (
1230 string_type, "Concat", object_object);
1231 Type [] object_object_object = { object_type, object_type, object_type };
1232 string_concat_object_object_object = GetMethod (
1233 string_type, "Concat", object_object_object);
1234 Type[] params_object = { GetConstructedType (object_type, "[]") };
1235 string_concat_object_dot_dot_dot = GetMethod (
1236 string_type, "Concat", params_object);
1238 Type [] string_ = { string_type };
1239 string_isinterneted_string = GetMethod (
1240 string_type, "IsInterned", string_);
1242 Type [] runtime_type_handle = { runtime_handle_type };
1243 system_type_get_type_from_handle = GetMethod (
1244 type_type, "GetTypeFromHandle", runtime_type_handle);
1246 Type [] delegate_delegate = { delegate_type, delegate_type };
1247 delegate_combine_delegate_delegate = GetMethod (
1248 delegate_type, "Combine", delegate_delegate);
1250 delegate_remove_delegate_delegate = GetMethod (
1251 delegate_type, "Remove", delegate_delegate);
1256 Type [] void_arg = { };
1257 ienumerator_getcurrent = GetProperty (
1258 ienumerator_type, "Current");
1259 bool_movenext_void = GetMethod (
1260 ienumerator_type, "MoveNext", void_arg);
1261 void_reset_void = GetMethod (
1262 ienumerator_type, "Reset", void_arg);
1263 void_dispose_void = GetMethod (
1264 idisposable_type, "Dispose", void_arg);
1265 int_get_offset_to_string_data = GetMethod (
1266 runtime_helpers_type, "get_OffsetToStringData", void_arg);
1267 int_array_get_length = GetMethod (
1268 array_type, "get_Length", void_arg);
1269 int_array_get_rank = GetMethod (
1270 array_type, "get_Rank", void_arg);
1271 ienumerable_getenumerator_void = GetMethod (
1272 ienumerable_type, "GetEnumerator", void_arg);
1277 Type [] int_arg = { int32_type };
1278 int_array_get_length_int = GetMethod (
1279 array_type, "GetLength", int_arg);
1280 int_array_get_upper_bound_int = GetMethod (
1281 array_type, "GetUpperBound", int_arg);
1282 int_array_get_lower_bound_int = GetMethod (
1283 array_type, "GetLowerBound", int_arg);
1286 // System.Array methods
1288 object_array_clone = GetMethod (
1289 array_type, "Clone", void_arg);
1290 Type [] array_int_arg = { array_type, int32_type };
1291 void_array_copyto_array_int = GetMethod (
1292 array_type, "CopyTo", array_int_arg);
1297 Type [] object_arg = { object_type };
1298 void_monitor_enter_object = GetMethod (
1299 monitor_type, "Enter", object_arg);
1300 void_monitor_exit_object = GetMethod (
1301 monitor_type, "Exit", object_arg);
1303 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1305 void_initializearray_array_fieldhandle = GetMethod (
1306 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1311 int_getlength_int = GetMethod (
1312 array_type, "GetLength", int_arg);
1315 // Decimal constructors
1317 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1318 void_decimal_ctor_five_args = GetConstructor (
1319 decimal_type, dec_arg);
1321 void_decimal_ctor_int_arg = GetConstructor (decimal_type, int_arg);
1326 cons_param_array_attribute = GetConstructor (param_array_type, void_arg);
1327 unverifiable_code_ctor = GetConstructor (unverifiable_code_type, void_arg);
1328 default_member_ctor = GetConstructor (default_member_type, string_);
1330 Type[] short_arg = { short_type };
1331 struct_layout_attribute_ctor = GetConstructor (struct_layout_attribute_type, short_arg);
1333 decimal_constant_attribute_ctor = GetConstructor (decimal_constant_attribute_type, new Type []
1334 { byte_type, byte_type, uint32_type, uint32_type, uint32_type } );
1336 field_offset_attribute_ctor = GetConstructor (field_offset_attribute_type, new Type []
1343 compiler_generated_attr = new CustomAttributeBuilder (
1344 GetConstructor (compiler_generated_attr_type, void_arg), new object[0]);
1346 Type[] type_int_arg = { type_type, int32_type };
1347 fixed_buffer_attr_ctor = GetConstructor (fixed_buffer_attr_type, type_int_arg);
1351 object_ctor = GetConstructor (object_type, void_arg);
1355 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1358 /// This is the "old", non-cache based FindMembers() function. We cannot use
1359 /// the cache here because there is no member name argument.
1361 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1362 MemberFilter filter, object criteria)
1364 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1367 // `builder_to_declspace' contains all dynamic types.
1371 Timer.StartTimer (TimerType.FindMembers);
1372 list = decl.FindMembers (mt, bf, filter, criteria);
1373 Timer.StopTimer (TimerType.FindMembers);
1378 // We have to take care of arrays specially, because GetType on
1379 // a TypeBuilder array will return a Type, not a TypeBuilder,
1380 // and we can not call FindMembers on this type.
1382 if (t.IsSubclassOf (TypeManager.array_type))
1383 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1386 // Since FindMembers will not lookup both static and instance
1387 // members, we emulate this behaviour here.
1389 if ((bf & instance_and_static) == instance_and_static){
1390 MemberInfo [] i_members = t.FindMembers (
1391 mt, bf & ~BindingFlags.Static, filter, criteria);
1393 int i_len = i_members.Length;
1395 MemberInfo one = i_members [0];
1398 // If any of these are present, we are done!
1400 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1401 return new MemberList (i_members);
1404 MemberInfo [] s_members = t.FindMembers (
1405 mt, bf & ~BindingFlags.Instance, filter, criteria);
1407 int s_len = s_members.Length;
1408 if (i_len > 0 || s_len > 0)
1409 return new MemberList (i_members, s_members);
1412 return new MemberList (i_members);
1414 return new MemberList (s_members);
1418 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1423 /// This method is only called from within MemberLookup. It tries to use the member
1424 /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
1425 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1426 /// our return value will already contain all inherited members and the caller don't need
1427 /// to check base classes and interfaces anymore.
1429 private static MemberInfo [] MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1430 string name, out bool used_cache)
1435 // We have to take care of arrays specially, because GetType on
1436 // a TypeBuilder array will return a Type, not a TypeBuilder,
1437 // and we can not call FindMembers on this type.
1439 if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
1441 return TypeHandle.ArrayType.MemberCache.FindMembers (
1442 mt, bf, name, FilterWithClosure_delegate, null);
1446 // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
1447 // and we can ask the DeclSpace for the MemberCache.
1449 if (t is TypeBuilder) {
1450 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1451 cache = decl.MemberCache;
1454 // If this DeclSpace has a MemberCache, use it.
1457 if (cache != null) {
1459 return cache.FindMembers (
1460 mt, bf, name, FilterWithClosure_delegate, null);
1463 // If there is no MemberCache, we need to use the "normal" FindMembers.
1464 // Note, this is a VERY uncommon route!
1467 Timer.StartTimer (TimerType.FindMembers);
1468 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
1469 FilterWithClosure_delegate, name);
1470 Timer.StopTimer (TimerType.FindMembers);
1473 return (MemberInfo []) list;
1477 // This call will always succeed. There is exactly one TypeHandle instance per
1478 // type, TypeHandle.GetMemberCache() will, if necessary, create a new one, and return
1479 // the corresponding MemberCache.
1481 cache = TypeHandle.GetMemberCache (t);
1484 return cache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1487 public static bool IsBuiltinType (Type t)
1489 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1490 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1491 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1492 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
1498 public static bool IsBuiltinType (TypeContainer tc)
1500 return IsBuiltinType (tc.TypeBuilder);
1504 // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
1505 // the pieces in the code where we use IsBuiltinType and special case decimal_type.
1507 public static bool IsPrimitiveType (Type t)
1509 return (t == int32_type || t == uint32_type ||
1510 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1511 t == char_type || t == short_type || t == bool_type ||
1512 t == sbyte_type || t == byte_type || t == ushort_type);
1515 public static bool IsDelegateType (Type t)
1517 if (t.IsSubclassOf (TypeManager.delegate_type))
1523 public static bool IsEnumType (Type t)
1525 if (t.IsSubclassOf (TypeManager.enum_type))
1530 public static bool IsBuiltinOrEnum (Type t)
1532 if (IsBuiltinType (t))
1541 static Stack unmanaged_enclosing_types = new Stack (4);
1544 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1546 public static bool IsUnmanagedType (Type t)
1548 // Avoid infloops in the case of: unsafe struct Foo { Foo *x; }
1549 if (unmanaged_enclosing_types.Contains (t))
1552 // builtins that are not unmanaged types
1553 if (t == TypeManager.object_type || t == TypeManager.string_type)
1556 if (IsBuiltinOrEnum (t))
1559 // Someone did the work of checking if the ElementType of t is unmanaged. Let's not repeat it.
1563 // Arrays are disallowed, even if we mark them with [MarshalAs(UnmanagedType.ByValArray, ...)]
1567 if (!IsValueType (t))
1570 unmanaged_enclosing_types.Push (t);
1574 if (t is TypeBuilder){
1575 TypeContainer tc = LookupTypeContainer (t);
1576 if (tc.Fields != null){
1577 foreach (Field f in tc.Fields){
1578 // Avoid using f.FieldBuilder: f.Define () may not yet have been invoked.
1579 if ((f.ModFlags & Modifiers.STATIC) != 0)
1581 if (f.MemberType == null)
1583 if (!IsUnmanagedType (f.MemberType)){
1584 Report.SymbolRelatedToPreviousError (f.Location, CSharpName (t) + "." + f.Name);
1590 FieldInfo [] fields = t.GetFields (BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
1592 foreach (FieldInfo f in fields){
1593 if (!IsUnmanagedType (f.FieldType)){
1594 Report.SymbolRelatedToPreviousError (f);
1600 unmanaged_enclosing_types.Pop ();
1605 public static bool IsValueType (Type t)
1607 if (t.IsSubclassOf (TypeManager.value_type) && (t != TypeManager.enum_type))
1613 public static bool IsInterfaceType (Type t)
1615 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
1619 return tc.Kind == Kind.Interface;
1622 public static bool IsSubclassOf (Type type, Type base_type)
1625 if (type.Equals (base_type))
1628 type = type.BaseType;
1629 } while (type != null);
1634 public static bool IsFamilyAccessible (Type type, Type base_type)
1636 return IsSubclassOf (type, base_type);
1640 // Checks whether `type' is a subclass or nested child of `base_type'.
1642 public static bool IsNestedFamilyAccessible (Type type, Type base_type)
1645 if ((type == base_type) || type.IsSubclassOf (base_type))
1648 // Handle nested types.
1649 type = type.DeclaringType;
1650 } while (type != null);
1656 // Checks whether `type' is a nested child of `parent'.
1658 public static bool IsNestedChildOf (Type type, Type parent)
1663 type = type.DeclaringType;
1664 while (type != null) {
1668 type = type.DeclaringType;
1675 // Do the right thing when returning the element type of an
1676 // array type based on whether we are compiling corlib or not
1678 public static Type GetElementType (Type t)
1680 if (RootContext.StdLib)
1681 return t.GetElementType ();
1683 return TypeToCoreType (t.GetElementType ());
1687 /// This method is not implemented by MS runtime for dynamic types
1689 public static bool HasElementType (Type t)
1691 return t.IsArray || t.IsPointer || t.IsByRef;
1695 /// Returns the User Defined Types
1697 public static ArrayList UserTypes {
1703 public static Hashtable TypeContainers {
1705 return typecontainers;
1709 static Hashtable builder_to_constant;
1711 public static void RegisterConstant (FieldBuilder fb, Const c)
1713 if (builder_to_constant == null)
1714 builder_to_constant = new PtrHashtable ();
1716 if (builder_to_constant.Contains (fb))
1719 builder_to_constant.Add (fb, c);
1722 public static Const LookupConstant (FieldBuilder fb)
1724 if (builder_to_constant == null)
1727 return (Const) builder_to_constant [fb];
1731 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1735 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1736 /// for anything which is dynamic, and we need this in a number of places,
1737 /// we register this information here, and use it afterwards.
1739 static public void RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1744 method_arguments.Add (mb, args);
1745 method_params.Add (mb, ip);
1748 static public ParameterData GetParameterData (MethodBase mb)
1750 object pd = method_params [mb];
1752 if (mb is MethodBuilder || mb is ConstructorBuilder)
1753 throw new InternalErrorException ("Argument for Method not registered" + mb);
1755 method_params [mb] = pd = new ReflectionParameters (mb);
1758 return (ParameterData) pd;
1761 static public void RegisterOverride (MethodBase override_method, MethodBase base_method)
1763 if (method_overrides.Contains (override_method)) {
1764 if (method_overrides [override_method] != base_method)
1765 throw new InternalErrorException ("Override mismatch: " + override_method);
1768 method_overrides [override_method] = base_method;
1771 static public bool IsOverride (MethodBase m)
1773 return m.IsVirtual &&
1774 (m.Attributes & MethodAttributes.NewSlot) == 0 &&
1775 (m is MethodBuilder || method_overrides.Contains (m));
1779 /// Returns the argument types for a method based on its methodbase
1781 /// For dynamic methods, we use the compiler provided types, for
1782 /// methods from existing assemblies we load them from GetParameters,
1783 /// and insert them into the cache
1785 static public Type [] GetArgumentTypes (MethodBase mb)
1787 object t = method_arguments [mb];
1791 ParameterInfo [] pi = mb.GetParameters ();
1798 types = new Type [c];
1799 for (int i = 0; i < c; i++)
1800 types [i] = pi [i].ParameterType;
1802 method_arguments.Add (mb, types);
1807 /// Returns the argument types for an indexer based on its PropertyInfo
1809 /// For dynamic indexers, we use the compiler provided types, for
1810 /// indexers from existing assemblies we load them from GetParameters,
1811 /// and insert them into the cache
1813 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1815 if (indexer_arguments.Contains (indexer))
1816 return (Type []) indexer_arguments [indexer];
1817 else if (indexer is PropertyBuilder)
1818 // If we're a PropertyBuilder and not in the
1819 // `indexer_arguments' hash, then we're a property and
1823 ParameterInfo [] pi = indexer.GetIndexParameters ();
1824 // Property, not an indexer.
1828 Type [] types = new Type [c];
1830 for (int i = 0; i < c; i++)
1831 types [i] = pi [i].ParameterType;
1833 indexer_arguments.Add (indexer, types);
1839 // This is a workaround the fact that GetValue is not
1840 // supported for dynamic types
1842 static public bool RegisterFieldValue (FieldBuilder fb, object value)
1844 if (fields.Contains (fb))
1847 fields.Add (fb, value);
1852 static public object GetValue (FieldBuilder fb)
1857 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1859 if (fieldbuilders_to_fields.Contains (fb))
1862 fieldbuilders_to_fields.Add (fb, f);
1867 // The return value can be null; This will be the case for
1868 // auxiliary FieldBuilders created by the compiler that have no
1869 // real field being declared on the source code
1871 static public FieldBase GetField (FieldInfo fb)
1873 return (FieldBase) fieldbuilders_to_fields [fb];
1876 static Hashtable events;
1878 static public void RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1881 events = new Hashtable ();
1883 if (!events.Contains (eb)) {
1884 events.Add (eb, new Pair (add, remove));
1888 static public MethodInfo GetAddMethod (EventInfo ei)
1890 if (ei is MyEventBuilder) {
1891 Pair pair = (Pair) events [ei];
1893 return (MethodInfo) pair.First;
1895 return ei.GetAddMethod (true);
1898 static public MethodInfo GetRemoveMethod (EventInfo ei)
1900 if (ei is MyEventBuilder) {
1901 Pair pair = (Pair) events [ei];
1903 return (MethodInfo) pair.Second;
1905 return ei.GetRemoveMethod (true);
1908 static Hashtable priv_fields_events;
1910 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1912 if (priv_fields_events == null)
1913 priv_fields_events = new Hashtable ();
1915 if (priv_fields_events.Contains (einfo))
1918 priv_fields_events.Add (einfo, builder);
1923 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1925 if (priv_fields_events == null)
1928 return (MemberInfo) priv_fields_events [ei];
1931 static Hashtable properties;
1933 static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase set)
1935 if (properties == null)
1936 properties = new Hashtable ();
1938 if (properties.Contains (pb))
1941 properties.Add (pb, new Pair (get, set));
1946 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get,
1947 MethodBase set, Type[] args)
1949 if (!RegisterProperty (pb, get,set))
1952 indexer_arguments.Add (pb, args);
1957 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen)
1959 Hashtable hash = new Hashtable ();
1960 return CheckStructCycles (tc, seen, hash);
1963 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen,
1966 if ((tc.Kind != Kind.Struct) || IsBuiltinType (tc))
1970 // `seen' contains all types we've already visited.
1972 if (seen.Contains (tc))
1974 seen.Add (tc, null);
1976 if (tc.Fields == null)
1979 foreach (FieldMember field in tc.Fields) {
1980 if (field.FieldBuilder == null || field.FieldBuilder.IsStatic)
1983 Type ftype = field.FieldBuilder.FieldType;
1984 TypeContainer ftc = LookupTypeContainer (ftype);
1988 if (hash.Contains (ftc)) {
1989 Report.Error (523, tc.Location,
1990 "Struct member `{0}.{1}' of type `{2}' " +
1991 "causes a cycle in the struct layout",
1992 tc.Name, field.Name, ftc.Name);
1997 // `hash' contains all types in the current path.
1999 hash.Add (tc, null);
2001 bool ok = CheckStructCycles (ftc, seen, hash);
2008 if (!seen.Contains (ftc))
2009 seen.Add (ftc, null);
2016 /// Given an array of interface types, expand and eliminate repeated ocurrences
2017 /// of an interface.
2021 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
2024 public static Type[] ExpandInterfaces (EmitContext ec, TypeExpr [] base_interfaces)
2026 ArrayList new_ifaces = new ArrayList ();
2028 foreach (TypeExpr iface in base_interfaces){
2029 Type itype = iface.ResolveType (ec);
2033 if (!new_ifaces.Contains (itype))
2034 new_ifaces.Add (itype);
2036 Type [] implementing = itype.GetInterfaces ();
2038 foreach (Type imp in implementing){
2039 if (!new_ifaces.Contains (imp))
2040 new_ifaces.Add (imp);
2043 Type [] ret = new Type [new_ifaces.Count];
2044 new_ifaces.CopyTo (ret, 0);
2048 static PtrHashtable iface_cache = new PtrHashtable ();
2051 /// This function returns the interfaces in the type `t'. Works with
2052 /// both types and TypeBuilders.
2054 public static Type [] GetInterfaces (Type t)
2057 Type [] cached = iface_cache [t] as Type [];
2062 // The reason for catching the Array case is that Reflection.Emit
2063 // will not return a TypeBuilder for Array types of TypeBuilder types,
2064 // but will still throw an exception if we try to call GetInterfaces
2067 // Since the array interfaces are always constant, we return those for
2072 t = TypeManager.array_type;
2074 if (t is TypeBuilder){
2075 Type [] base_ifaces;
2077 if (t.BaseType == null)
2078 base_ifaces = NoTypes;
2080 base_ifaces = GetInterfaces (t.BaseType);
2081 Type [] type_ifaces = (Type []) builder_to_ifaces [t];
2082 if (type_ifaces == null)
2083 type_ifaces = NoTypes;
2085 int base_count = base_ifaces.Length;
2086 Type [] result = new Type [base_count + type_ifaces.Length];
2087 base_ifaces.CopyTo (result, 0);
2088 type_ifaces.CopyTo (result, base_count);
2090 iface_cache [t] = result;
2093 Type[] ifaces = t.GetInterfaces ();
2094 iface_cache [t] = ifaces;
2100 // gets the interfaces that are declared explicitly on t
2102 public static Type [] GetExplicitInterfaces (TypeBuilder t)
2104 return (Type []) builder_to_ifaces [t];
2108 /// The following is used to check if a given type implements an interface.
2109 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
2111 public static bool ImplementsInterface (Type t, Type iface)
2116 // FIXME OPTIMIZATION:
2117 // as soon as we hit a non-TypeBuiler in the interface
2118 // chain, we could return, as the `Type.GetInterfaces'
2119 // will return all the interfaces implement by the type
2123 interfaces = GetInterfaces (t);
2125 if (interfaces != null){
2126 foreach (Type i in interfaces){
2133 } while (t != null);
2138 static NumberFormatInfo nf_provider = CultureInfo.CurrentCulture.NumberFormat;
2140 // This is a custom version of Convert.ChangeType() which works
2141 // with the TypeBuilder defined types when compiling corlib.
2142 public static object ChangeType (object value, Type conversionType, out bool error)
2144 IConvertible convert_value = value as IConvertible;
2146 if (convert_value == null){
2152 // We must use Type.Equals() here since `conversionType' is
2153 // the TypeBuilder created version of a system type and not
2154 // the system type itself. You cannot use Type.GetTypeCode()
2155 // on such a type - it'd always return TypeCode.Object.
2159 if (conversionType.Equals (typeof (Boolean)))
2160 return (object)(convert_value.ToBoolean (nf_provider));
2161 else if (conversionType.Equals (typeof (Byte)))
2162 return (object)(convert_value.ToByte (nf_provider));
2163 else if (conversionType.Equals (typeof (Char)))
2164 return (object)(convert_value.ToChar (nf_provider));
2165 else if (conversionType.Equals (typeof (DateTime)))
2166 return (object)(convert_value.ToDateTime (nf_provider));
2167 else if (conversionType.Equals (TypeManager.decimal_type)) // typeof (Decimal)))
2168 return (object)(convert_value.ToDecimal (nf_provider));
2169 else if (conversionType.Equals (typeof (Double)))
2170 return (object)(convert_value.ToDouble (nf_provider));
2171 else if (conversionType.Equals (typeof (Int16)))
2172 return (object)(convert_value.ToInt16 (nf_provider));
2173 else if (conversionType.Equals (typeof (Int32)))
2174 return (object)(convert_value.ToInt32 (nf_provider));
2175 else if (conversionType.Equals (typeof (Int64)))
2176 return (object)(convert_value.ToInt64 (nf_provider));
2177 else if (conversionType.Equals (typeof (SByte)))
2178 return (object)(convert_value.ToSByte (nf_provider));
2179 else if (conversionType.Equals (typeof (Single)))
2180 return (object)(convert_value.ToSingle (nf_provider));
2181 else if (conversionType.Equals (typeof (String)))
2182 return (object)(convert_value.ToString (nf_provider));
2183 else if (conversionType.Equals (typeof (UInt16)))
2184 return (object)(convert_value.ToUInt16 (nf_provider));
2185 else if (conversionType.Equals (typeof (UInt32)))
2186 return (object)(convert_value.ToUInt32 (nf_provider));
2187 else if (conversionType.Equals (typeof (UInt64)))
2188 return (object)(convert_value.ToUInt64 (nf_provider));
2189 else if (conversionType.Equals (typeof (Object)))
2190 return (object)(value);
2200 // This is needed, because enumerations from assemblies
2201 // do not report their underlyingtype, but they report
2204 public static Type EnumToUnderlying (Type t)
2206 if (t == TypeManager.enum_type)
2209 t = t.UnderlyingSystemType;
2210 if (!TypeManager.IsEnumType (t))
2213 if (t is TypeBuilder) {
2214 // slow path needed to compile corlib
2215 if (t == TypeManager.bool_type ||
2216 t == TypeManager.byte_type ||
2217 t == TypeManager.sbyte_type ||
2218 t == TypeManager.char_type ||
2219 t == TypeManager.short_type ||
2220 t == TypeManager.ushort_type ||
2221 t == TypeManager.int32_type ||
2222 t == TypeManager.uint32_type ||
2223 t == TypeManager.int64_type ||
2224 t == TypeManager.uint64_type)
2227 TypeCode tc = Type.GetTypeCode (t);
2230 case TypeCode.Boolean:
2231 return TypeManager.bool_type;
2233 return TypeManager.byte_type;
2234 case TypeCode.SByte:
2235 return TypeManager.sbyte_type;
2237 return TypeManager.char_type;
2238 case TypeCode.Int16:
2239 return TypeManager.short_type;
2240 case TypeCode.UInt16:
2241 return TypeManager.ushort_type;
2242 case TypeCode.Int32:
2243 return TypeManager.int32_type;
2244 case TypeCode.UInt32:
2245 return TypeManager.uint32_type;
2246 case TypeCode.Int64:
2247 return TypeManager.int64_type;
2248 case TypeCode.UInt64:
2249 return TypeManager.uint64_type;
2251 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
2255 // When compiling corlib and called with one of the core types, return
2256 // the corresponding typebuilder for that type.
2258 public static Type TypeToCoreType (Type t)
2260 if (RootContext.StdLib || (t is TypeBuilder))
2263 TypeCode tc = Type.GetTypeCode (t);
2266 case TypeCode.Boolean:
2267 return TypeManager.bool_type;
2269 return TypeManager.byte_type;
2270 case TypeCode.SByte:
2271 return TypeManager.sbyte_type;
2273 return TypeManager.char_type;
2274 case TypeCode.Int16:
2275 return TypeManager.short_type;
2276 case TypeCode.UInt16:
2277 return TypeManager.ushort_type;
2278 case TypeCode.Int32:
2279 return TypeManager.int32_type;
2280 case TypeCode.UInt32:
2281 return TypeManager.uint32_type;
2282 case TypeCode.Int64:
2283 return TypeManager.int64_type;
2284 case TypeCode.UInt64:
2285 return TypeManager.uint64_type;
2286 case TypeCode.Single:
2287 return TypeManager.float_type;
2288 case TypeCode.Double:
2289 return TypeManager.double_type;
2290 case TypeCode.String:
2291 return TypeManager.string_type;
2292 case TypeCode.Decimal:
2293 return TypeManager.decimal_type;
2295 if (t == typeof (void))
2296 return TypeManager.void_type;
2297 if (t == typeof (object))
2298 return TypeManager.object_type;
2299 if (t == typeof (System.Type))
2300 return TypeManager.type_type;
2301 if (t == typeof (System.IntPtr))
2302 return TypeManager.intptr_type;
2308 /// Utility function that can be used to probe whether a type
2309 /// is managed or not.
2311 public static bool VerifyUnManaged (Type t, Location loc)
2313 if (IsUnmanagedType (t))
2316 Report.Error (208, loc, "Cannot take the address of, get the size of, or declare a pointer to a managed type `{0}'",
2323 /// Returns the name of the indexer in a given type.
2326 /// The default is not always `Item'. The user can change this behaviour by
2327 /// using the IndexerNameAttribute in the container.
2328 /// For example, the String class indexer is named `Chars' not `Item'
2330 public static string IndexerPropertyName (Type t)
2332 if (t is TypeBuilder) {
2333 TypeContainer tc = t.IsInterface ? LookupInterface (t) : LookupTypeContainer (t);
2334 return tc == null ? TypeContainer.DefaultIndexerName : tc.IndexerName;
2337 System.Attribute attr = System.Attribute.GetCustomAttribute (
2338 t, TypeManager.default_member_type);
2340 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
2341 return dma.MemberName;
2344 return TypeContainer.DefaultIndexerName;
2347 static MethodInfo declare_local_method = null;
2349 public static LocalBuilder DeclareLocalPinned (ILGenerator ig, Type t)
2351 if (declare_local_method == null){
2352 declare_local_method = typeof (ILGenerator).GetMethod (
2354 BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
2356 new Type [] { typeof (Type), typeof (bool)},
2358 if (declare_local_method == null){
2359 Report.Warning (-30, new Location (-1),
2360 "This version of the runtime does not support making pinned local variables. " +
2361 "This code may cause errors on a runtime with a moving GC");
2362 return ig.DeclareLocal (t);
2365 return (LocalBuilder) declare_local_method.Invoke (ig, new object [] { t, true });
2369 // Returns whether the array of memberinfos contains the given method
2371 public static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
2373 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
2375 foreach (MethodBase method in array) {
2376 if (method.Name != new_method.Name)
2379 if (method is MethodInfo && new_method is MethodInfo)
2380 if (((MethodInfo) method).ReturnType != ((MethodInfo) new_method).ReturnType)
2384 Type [] old_args = TypeManager.GetArgumentTypes (method);
2385 int old_count = old_args.Length;
2388 if (new_args.Length != old_count)
2391 for (i = 0; i < old_count; i++){
2392 if (old_args [i] != new_args [i])
2405 // We copy methods from `new_members' into `target_list' if the signature
2406 // for the method from in the new list does not exist in the target_list
2408 // The name is assumed to be the same.
2410 public static ArrayList CopyNewMethods (ArrayList target_list, IList new_members)
2412 if (target_list == null){
2413 target_list = new ArrayList ();
2415 foreach (MemberInfo mi in new_members){
2416 if (mi is MethodBase)
2417 target_list.Add (mi);
2422 MemberInfo [] target_array = new MemberInfo [target_list.Count];
2423 target_list.CopyTo (target_array, 0);
2425 foreach (MemberInfo mi in new_members){
2426 MethodBase new_method = (MethodBase) mi;
2428 if (!ArrayContainsMethod (target_array, new_method))
2429 target_list.Add (new_method);
2435 #region MemberLookup implementation
2438 // Whether we allow private members in the result (since FindMembers
2439 // uses NonPublic for both protected and private), we need to distinguish.
2442 static internal bool FilterNone (MemberInfo m, object filter_criteria)
2447 internal class Closure {
2448 internal bool private_ok;
2450 // Who is invoking us and which type is being queried currently.
2451 internal Type invocation_type;
2452 internal Type qualifier_type;
2454 // The assembly that defines the type is that is calling us
2455 internal Assembly invocation_assembly;
2456 internal IList almost_match;
2458 private bool CheckValidFamilyAccess (bool is_static, MemberInfo m)
2460 if (invocation_type == null)
2463 if (is_static && qualifier_type == null)
2464 // It resolved from a simple name, so it should be visible.
2467 // A nested class has access to all the protected members visible to its parent.
2468 if (qualifier_type != null && TypeManager.IsNestedChildOf (invocation_type, qualifier_type))
2471 if (invocation_type == m.DeclaringType || invocation_type.IsSubclassOf (m.DeclaringType)) {
2472 // Although a derived class can access protected members of its base class
2473 // it cannot do so through an instance of the base class (CS1540).
2474 // => Ancestry should be: declaring_type ->* invocation_type ->* qualified_type
2476 qualifier_type == null ||
2477 qualifier_type == invocation_type ||
2478 qualifier_type.IsSubclassOf (invocation_type))
2482 if (almost_match != null)
2483 almost_match.Add (m);
2489 // This filter filters by name + whether it is ok to include private
2490 // members in the search
2492 internal bool Filter (MemberInfo m, object filter_criteria)
2495 // Hack: we know that the filter criteria will always be in the `closure'
2499 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2502 if (((qualifier_type == null) || (qualifier_type == invocation_type)) &&
2503 (m.DeclaringType == invocation_type))
2507 // Ugly: we need to find out the type of `m', and depending
2508 // on this, tell whether we accept or not
2510 if (m is MethodBase){
2511 MethodBase mb = (MethodBase) m;
2512 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2514 if (ma == MethodAttributes.Private)
2515 return private_ok || invocation_type == m.DeclaringType ||
2516 IsNestedChildOf (invocation_type, m.DeclaringType);
2518 if (invocation_assembly == mb.DeclaringType.Assembly) {
2519 if (ma == MethodAttributes.Assembly || ma == MethodAttributes.FamORAssem)
2522 if (ma == MethodAttributes.Assembly || ma == MethodAttributes.FamANDAssem)
2526 if (ma == MethodAttributes.Family ||
2527 ma == MethodAttributes.FamANDAssem ||
2528 ma == MethodAttributes.FamORAssem)
2529 return CheckValidFamilyAccess (mb.IsStatic, m);
2535 if (m is FieldInfo){
2536 FieldInfo fi = (FieldInfo) m;
2537 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2539 if (fa == FieldAttributes.Private)
2540 return private_ok || (invocation_type == m.DeclaringType) ||
2541 IsNestedChildOf (invocation_type, m.DeclaringType);
2543 if (invocation_assembly == fi.DeclaringType.Assembly) {
2544 if (fa == FieldAttributes.Assembly || fa == FieldAttributes.FamORAssem)
2547 if (fa == FieldAttributes.Assembly || fa == FieldAttributes.FamANDAssem)
2551 if (fa == FieldAttributes.Family ||
2552 fa == FieldAttributes.FamANDAssem ||
2553 fa == FieldAttributes.FamORAssem)
2554 return CheckValidFamilyAccess (fi.IsStatic, m);
2561 // EventInfos and PropertyInfos, return true because they lack permission
2562 // information, so we need to check later on the methods.
2568 static Closure closure = new Closure ();
2569 static MemberFilter FilterWithClosure_delegate = new MemberFilter (closure.Filter);
2572 // Looks up a member called `name' in the `queried_type'. This lookup
2573 // is done by code that is contained in the definition for `invocation_type'
2574 // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
2576 // `invocation_type' is used to check whether we're allowed to access the requested
2577 // member wrt its protection level.
2579 // When called from MemberAccess, `qualifier_type' is the type which is used to access
2580 // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
2581 // is B and qualifier_type is A). This is used to do the CS1540 check.
2583 // When resolving a SimpleName, `qualifier_type' is null.
2585 // The `qualifier_type' is used for the CS1540 check; it's normally either null or
2586 // the same than `queried_type' - except when we're being called from BaseAccess;
2587 // in this case, `invocation_type' is the current type and `queried_type' the base
2588 // type, so this'd normally trigger a CS1540.
2590 // The binding flags are `bf' and the kind of members being looked up are `mt'
2592 // The return value always includes private members which code in `invocation_type'
2593 // is allowed to access (using the specified `qualifier_type' if given); only use
2594 // BindingFlags.NonPublic to bypass the permission check.
2596 // The 'almost_match' argument is used for reporting error CS1540.
2598 // Returns an array of a single element for everything but Methods/Constructors
2599 // that might return multiple matches.
2601 public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_type,
2602 Type queried_type, MemberTypes mt,
2603 BindingFlags original_bf, string name, IList almost_match)
2605 Timer.StartTimer (TimerType.MemberLookup);
2607 MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_type,
2608 queried_type, mt, original_bf, name, almost_match);
2610 Timer.StopTimer (TimerType.MemberLookup);
2615 static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_type,
2616 Type queried_type, MemberTypes mt,
2617 BindingFlags original_bf, string name, IList almost_match)
2619 BindingFlags bf = original_bf;
2621 ArrayList method_list = null;
2622 Type current_type = queried_type;
2623 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2624 bool skip_iface_check = true, used_cache = false;
2625 bool always_ok_flag = false;
2627 closure.invocation_type = invocation_type;
2628 closure.invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2629 closure.qualifier_type = qualifier_type;
2630 closure.almost_match = almost_match;
2633 // If we are a nested class, we always have access to our container
2636 if (invocation_type != null){
2637 string invocation_name = invocation_type.FullName;
2638 if (invocation_name.IndexOf ('+') != -1){
2639 string container = queried_type.FullName + "+";
2640 int container_length = container.Length;
2642 if (invocation_name.Length > container_length){
2643 string shared = invocation_name.Substring (0, container_length);
2645 if (shared == container)
2646 always_ok_flag = true;
2651 // This is from the first time we find a method
2652 // in most cases, we do not actually find a method in the base class
2653 // so we can just ignore it, and save the arraylist allocation
2654 MemberInfo [] first_members_list = null;
2655 bool use_first_members_list = false;
2661 // `NonPublic' is lame, because it includes both protected and
2662 // private methods, so we need to control this behavior by
2663 // explicitly tracking if a private method is ok or not.
2665 // The possible cases are:
2666 // public, private and protected (internal does not come into the
2669 if ((invocation_type != null) &&
2670 ((invocation_type == current_type) ||
2671 IsNestedChildOf (invocation_type, current_type)) ||
2673 bf = original_bf | BindingFlags.NonPublic;
2677 closure.private_ok = (original_bf & BindingFlags.NonPublic) != 0;
2679 Timer.StopTimer (TimerType.MemberLookup);
2681 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2683 Timer.StartTimer (TimerType.MemberLookup);
2686 // When queried for an interface type, the cache will automatically check all
2687 // inherited members, so we don't need to do this here. However, this only
2688 // works if we already used the cache in the first iteration of this loop.
2690 // If we used the cache in any further iteration, we can still terminate the
2691 // loop since the cache always looks in all base classes.
2697 skip_iface_check = false;
2699 if (current_type == TypeManager.object_type)
2702 current_type = current_type.BaseType;
2705 // This happens with interfaces, they have a null
2706 // basetype. Look members up in the Object class.
2708 if (current_type == null) {
2709 current_type = TypeManager.object_type;
2714 if (list.Length == 0)
2718 // Events and types are returned by both `static' and `instance'
2719 // searches, which means that our above FindMembers will
2720 // return two copies of the same.
2722 if (list.Length == 1 && !(list [0] is MethodBase)){
2727 // Multiple properties: we query those just to find out the indexer
2730 if (list [0] is PropertyInfo)
2734 // We found an event: the cache lookup returns both the event and
2735 // its private field.
2737 if (list [0] is EventInfo) {
2738 if ((list.Length == 2) && (list [1] is FieldInfo))
2739 return new MemberInfo [] { list [0] };
2746 // We found methods, turn the search into "method scan"
2750 if (first_members_list != null) {
2751 if (use_first_members_list) {
2752 method_list = CopyNewMethods (method_list, first_members_list);
2753 use_first_members_list = false;
2756 method_list = CopyNewMethods (method_list, list);
2758 first_members_list = list;
2759 use_first_members_list = true;
2760 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2762 } while (searching);
2764 if (use_first_members_list) {
2765 foreach (MemberInfo mi in first_members_list) {
2766 if (! (mi is MethodBase)) {
2767 method_list = CopyNewMethods (method_list, first_members_list);
2768 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2771 return (MemberInfo []) first_members_list;
2774 if (method_list != null && method_list.Count > 0)
2775 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2778 // This happens if we already used the cache in the first iteration, in this case
2779 // the cache already looked in all interfaces.
2781 if (skip_iface_check)
2785 // Interfaces do not list members they inherit, so we have to
2788 if (!queried_type.IsInterface)
2791 if (queried_type.IsArray)
2792 queried_type = TypeManager.array_type;
2794 Type [] ifaces = GetInterfaces (queried_type);
2798 foreach (Type itype in ifaces){
2801 x = MemberLookup (null, null, itype, mt, bf, name, null);
2809 // Tests whether external method is really special
2810 public static bool IsSpecialMethod (MethodBase mb)
2812 string name = mb.Name;
2813 if (name.StartsWith ("get_") || name.StartsWith ("set_"))
2814 return mb.DeclaringType.GetProperty (name.Substring (4)) != null;
2816 if (name.StartsWith ("add_"))
2817 return mb.DeclaringType.GetEvent (name.Substring (4)) != null;
2819 if (name.StartsWith ("remove_"))
2820 return mb.DeclaringType.GetEvent (name.Substring (7)) != null;
2822 if (name.StartsWith ("op_")){
2823 foreach (string oname in Unary.oper_names) {
2828 foreach (string oname in Binary.oper_names) {
2841 /// There is exactly one instance of this class per type.
2843 public sealed class TypeHandle : IMemberContainer {
2844 public readonly IMemberContainer BaseType;
2846 readonly int id = ++next_id;
2847 static int next_id = 0;
2849 static TypeHandle ()
2855 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2856 /// a TypeHandle yet, a new instance of it is created. This static method
2857 /// ensures that we'll only have one TypeHandle instance per type.
2859 private static TypeHandle GetTypeHandle (Type t)
2861 TypeHandle handle = (TypeHandle) type_hash [t];
2865 handle = new TypeHandle (t);
2866 type_hash.Add (t, handle);
2870 public static MemberCache GetMemberCache (Type t)
2872 return GetTypeHandle (t).MemberCache;
2875 public static void CleanUp ()
2880 public static void Reset ()
2882 type_hash = new PtrHashtable ();
2886 /// Returns the TypeHandle for TypeManager.object_type.
2888 public static IMemberContainer ObjectType {
2890 if (object_type != null)
2893 object_type = GetTypeHandle (TypeManager.object_type);
2900 /// Returns the TypeHandle for TypeManager.array_type.
2902 public static IMemberContainer ArrayType {
2904 if (array_type != null)
2907 array_type = GetTypeHandle (TypeManager.array_type);
2913 private static PtrHashtable type_hash;
2915 private static TypeHandle object_type = null;
2916 private static TypeHandle array_type = null;
2919 private bool is_interface;
2920 private MemberCache member_cache;
2921 private MemberCache base_cache;
2923 private TypeHandle (Type type)
2926 if (type.BaseType != null) {
2927 base_cache = TypeManager.LookupMemberCache (type.BaseType);
2928 BaseType = base_cache.Container;
2929 } else if (type.IsInterface)
2930 base_cache = TypeManager.LookupBaseInterfacesCache (type);
2931 this.is_interface = type.IsInterface;
2932 this.member_cache = new MemberCache (this);
2935 // IMemberContainer methods
2937 public string Name {
2939 return type.FullName;
2949 public MemberCache BaseCache {
2955 public bool IsInterface {
2957 return is_interface;
2961 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
2963 MemberInfo [] members;
2964 if (mt == MemberTypes.Event)
2965 members = type.GetEvents (bf | BindingFlags.DeclaredOnly);
2967 members = type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
2969 Array.Reverse (members);
2971 return new MemberList (members);
2974 // IMemberFinder methods
2976 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
2977 MemberFilter filter, object criteria)
2979 return new MemberList (member_cache.FindMembers (mt, bf, name, filter, criteria));
2982 public MemberCache MemberCache {
2984 return member_cache;
2988 public override string ToString ()
2990 if (BaseType != null)
2991 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
2993 return "TypeHandle (" + id + "," + Name + ")";