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;
224 static PtrHashtable builder_to_declspace;
226 static PtrHashtable builder_to_member_cache;
229 // Tracks the interfaces implemented by typebuilders. We only
230 // enter those who do implement or or more interfaces
232 static PtrHashtable builder_to_ifaces;
235 // Maps MethodBase.RuntimeTypeHandle to a Type array that contains
236 // the arguments to the method
238 static Hashtable method_arguments;
241 // Maps PropertyBuilder to a Type array that contains
242 // the arguments to the indexer
244 static Hashtable indexer_arguments;
247 // Maps a MethodBase to its ParameterData (either InternalParameters or ReflectionParameters)
249 static Hashtable method_params;
252 // A hash table from override methods to their base virtual method.
254 static Hashtable method_overrides;
257 // Keeps track of methods
260 static Hashtable builder_to_method;
263 // Contains all public types from referenced assemblies.
264 // This member is used only if CLS Compliance verification is required.
266 public static Hashtable AllClsTopLevelTypes;
268 static Hashtable fieldbuilders_to_fields;
269 static Hashtable fields;
276 public static void CleanUp ()
278 // Lets get everything clean so that we can collect before generating code
281 builder_to_declspace = null;
282 builder_to_member_cache = null;
283 builder_to_ifaces = null;
284 method_arguments = null;
285 indexer_arguments = null;
286 method_params = null;
287 builder_to_method = null;
290 fieldbuilders_to_fields = null;
292 priv_fields_events = null;
295 TypeHandle.CleanUp ();
299 /// A filter for Findmembers that uses the Signature object to
302 static bool SignatureFilter (MemberInfo mi, object criteria)
304 Signature sig = (Signature) criteria;
306 if (!(mi is MethodBase))
309 if (mi.Name != sig.name)
312 int count = sig.args.Length;
314 if (mi is MethodBuilder || mi is ConstructorBuilder){
315 Type [] candidate_args = GetArgumentTypes ((MethodBase) mi);
317 if (candidate_args.Length != count)
320 for (int i = 0; i < count; i++)
321 if (candidate_args [i] != sig.args [i])
326 ParameterInfo [] pars = ((MethodBase) mi).GetParameters ();
328 if (pars.Length != count)
331 for (int i = 0; i < count; i++)
332 if (pars [i].ParameterType != sig.args [i])
338 // A delegate that points to the filter above.
339 static MemberFilter signature_filter;
342 // These are expressions that represent some of the internal data types, used
345 static void InitExpressionTypes ()
347 system_object_expr = new TypeLookupExpression ("System.Object");
348 system_string_expr = new TypeLookupExpression ("System.String");
349 system_boolean_expr = new TypeLookupExpression ("System.Boolean");
350 system_decimal_expr = new TypeLookupExpression ("System.Decimal");
351 system_single_expr = new TypeLookupExpression ("System.Single");
352 system_double_expr = new TypeLookupExpression ("System.Double");
353 system_sbyte_expr = new TypeLookupExpression ("System.SByte");
354 system_byte_expr = new TypeLookupExpression ("System.Byte");
355 system_int16_expr = new TypeLookupExpression ("System.Int16");
356 system_uint16_expr = new TypeLookupExpression ("System.UInt16");
357 system_int32_expr = new TypeLookupExpression ("System.Int32");
358 system_uint32_expr = new TypeLookupExpression ("System.UInt32");
359 system_int64_expr = new TypeLookupExpression ("System.Int64");
360 system_uint64_expr = new TypeLookupExpression ("System.UInt64");
361 system_char_expr = new TypeLookupExpression ("System.Char");
362 system_void_expr = new TypeLookupExpression ("System.Void");
363 system_asynccallback_expr = new TypeLookupExpression ("System.AsyncCallback");
364 system_iasyncresult_expr = new TypeLookupExpression ("System.IAsyncResult");
365 system_valuetype_expr = new TypeLookupExpression ("System.ValueType");
366 system_intptr_expr = new TypeLookupExpression ("System.IntPtr");
369 static TypeManager ()
373 signature_filter = new MemberFilter (SignatureFilter);
374 InitExpressionTypes ();
377 static public void Reset ()
379 assemblies = new Assembly [0];
382 builder_to_declspace = new PtrHashtable ();
383 builder_to_member_cache = new PtrHashtable ();
384 builder_to_method = new PtrHashtable ();
385 method_arguments = new PtrHashtable ();
386 method_params = new PtrHashtable ();
387 method_overrides = new PtrHashtable ();
388 indexer_arguments = new PtrHashtable ();
389 builder_to_ifaces = new PtrHashtable ();
391 NoTypes = new Type [0];
392 NoTypeExprs = new TypeExpr [0];
394 fieldbuilders_to_fields = new Hashtable ();
395 fields = new Hashtable ();
396 type_hash = new DoubleHash ();
399 public static void AddUserType (string name, DeclSpace ds)
401 builder_to_declspace.Add (ds.TypeBuilder, ds);
405 // This entry point is used by types that we define under the covers
407 public static void RegisterBuilder (Type tb, Type [] ifaces)
410 builder_to_ifaces [tb] = ifaces;
413 public static void AddMethod (MethodBase builder, IMethodData method)
415 builder_to_method.Add (builder, method);
418 public static IMethodData GetMethod (MethodBase builder)
420 return (IMethodData) builder_to_method [builder];
424 /// Returns the DeclSpace whose Type is `t' or null if there is no
425 /// DeclSpace for `t' (ie, the Type comes from a library)
427 public static DeclSpace LookupDeclSpace (Type t)
429 return builder_to_declspace [t] as DeclSpace;
433 /// Returns the TypeContainer whose Type is `t' or null if there is no
434 /// TypeContainer for `t' (ie, the Type comes from a library)
436 public static TypeContainer LookupTypeContainer (Type t)
438 return builder_to_declspace [t] as TypeContainer;
441 public static MemberCache LookupMemberCache (Type t)
443 if (t is TypeBuilder) {
444 IMemberContainer container = builder_to_declspace [t] as IMemberContainer;
445 if (container != null)
446 return container.MemberCache;
449 return TypeHandle.GetMemberCache (t);
452 public static MemberCache LookupBaseInterfacesCache (Type t)
454 Type [] ifaces = t.GetInterfaces ();
456 if (ifaces != null && ifaces.Length == 1)
457 return LookupMemberCache (ifaces [0]);
459 // TODO: the builder_to_member_cache should be indexed by 'ifaces', not 't'
460 MemberCache cache = builder_to_member_cache [t] as MemberCache;
464 cache = new MemberCache (ifaces);
465 builder_to_member_cache.Add (t, cache);
469 public static TypeContainer LookupInterface (Type t)
471 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
472 if ((tc == null) || (tc.Kind != Kind.Interface))
478 public static Delegate LookupDelegate (Type t)
480 return builder_to_declspace [t] as Delegate;
483 public static Class LookupClass (Type t)
485 return (Class) builder_to_declspace [t];
489 /// Registers an assembly to load types from.
491 public static void AddAssembly (Assembly a)
493 foreach (Assembly assembly in assemblies) {
498 int top = assemblies.Length;
499 Assembly [] n = new Assembly [top + 1];
501 assemblies.CopyTo (n, 0);
507 public static Assembly [] GetAssemblies ()
513 /// Registers a module builder to lookup types from
515 public static void AddModule (Module mb)
517 int top = modules != null ? modules.Length : 0;
518 Module [] n = new Module [top + 1];
521 modules.CopyTo (n, 0);
526 public static Module[] Modules {
533 // We use this hash for multiple kinds of constructed types:
535 // (T, "&") Given T, get T &
536 // (T, "*") Given T, get T *
537 // (T, "[]") Given T and a array dimension, get T []
538 // (T, X) Given a type T and a simple name X, get the type T+X
540 // Accessibility tests, if necessary, should be done by the user
542 static DoubleHash type_hash = new DoubleHash ();
545 // Gets the reference to T version of the Type (T&)
547 public static Type GetReferenceType (Type t)
549 return GetConstructedType (t, "&");
553 // Gets the pointer to T version of the Type (T*)
555 public static Type GetPointerType (Type t)
557 return GetConstructedType (t, "*");
560 public static Type GetConstructedType (Type t, string dim)
563 if (!type_hash.Lookup (t, dim, out ret)) {
564 ret = t.Module.GetType (t.ToString () + dim);
565 type_hash.Insert (t, dim, ret);
570 public static Type GetNestedType (Type t, string name)
573 if (!type_hash.Lookup (t, name, out ret)) {
574 ret = t.GetNestedType (name,
575 BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.DeclaredOnly);
576 type_hash.Insert (t, name, ret);
581 public static Type LookupTypeReflection (string name, Location loc)
583 Type found_type = null;
585 foreach (Assembly a in assemblies) {
586 Type t = a.GetType (name);
591 throw new InternalErrorException ("Use GetPointerType() to get a pointer");
593 TypeAttributes ta = t.Attributes & TypeAttributes.VisibilityMask;
594 if (ta != TypeAttributes.NotPublic && ta != TypeAttributes.NestedPrivate &&
595 ta != TypeAttributes.NestedAssembly && ta != TypeAttributes.NestedFamANDAssem) {
596 if (found_type == null) {
601 Report.SymbolRelatedToPreviousError (found_type);
602 Report.SymbolRelatedToPreviousError (t);
603 Report.Error (433, loc, "The imported type `{0}' is defined multiple times", name);
608 foreach (Module mb in modules) {
609 Type t = mb.GetType (name);
613 if (found_type == null) {
618 Report.SymbolRelatedToPreviousError (t);
619 Report.SymbolRelatedToPreviousError (found_type);
620 Report.Warning (436, 2, loc, "Ignoring imported type `{0}' since the current assembly already has a declaration with the same name",
621 TypeManager.CSharpName (t));
629 /// Computes the namespaces that we import from the assemblies we reference.
631 public static void ComputeNamespaces ()
633 MethodInfo assembly_get_namespaces = typeof (Assembly).GetMethod ("GetNamespaces", BindingFlags.Instance|BindingFlags.NonPublic);
635 Hashtable cache = null;
638 // First add the assembly namespaces
640 if (assembly_get_namespaces != null){
641 int count = assemblies.Length;
643 for (int i = 0; i < count; i++){
644 Assembly a = assemblies [i];
645 string [] namespaces = (string []) assembly_get_namespaces.Invoke (a, null);
646 foreach (string ns in namespaces){
649 Namespace.LookupNamespace (ns, true);
653 cache = new Hashtable ();
654 cache.Add ("", null);
655 foreach (Assembly a in assemblies) {
656 foreach (Type t in a.GetExportedTypes ()) {
657 string ns = t.Namespace;
658 if (ns == null || cache.Contains (ns))
661 Namespace.LookupNamespace (ns, true);
662 cache.Add (ns, null);
668 // Then add module namespaces
670 foreach (Module m in modules) {
671 if (m == CodeGen.Module.Builder)
674 cache = new Hashtable ();
675 cache.Add ("", null);
677 foreach (Type t in m.GetTypes ()) {
678 string ns = t.Namespace;
679 if (ns == null || cache.Contains (ns))
681 Namespace.LookupNamespace (ns, true);
682 cache.Add (ns, null);
688 /// Fills static table with exported types from all referenced assemblies.
689 /// This information is required for CLS Compliance tests.
691 public static void LoadAllImportedTypes ()
693 AllClsTopLevelTypes = new Hashtable (1500);
694 foreach (Assembly a in assemblies) {
695 foreach (Type t in a.GetExportedTypes ()) {
696 AllClsTopLevelTypes [t.FullName.ToLower (System.Globalization.CultureInfo.InvariantCulture)] = null;
701 public static bool NamespaceClash (string name, Location loc)
703 if (Namespace.LookupNamespace (name, false) == null)
706 Report.Error (519, loc, String.Format ("`{0}' clashes with a predefined namespace", name));
711 /// Returns the C# name of a type if possible, or the full type name otherwise
713 static public string CSharpName (Type t)
715 return Regex.Replace (t.FullName,
717 @"(Int32|UInt32|Int16|UInt16|Int64|UInt64|" +
718 @"Single|Double|Char|Decimal|Byte|SByte|Object|" +
719 @"Boolean|String|Void|Null)" +
721 new MatchEvaluator (CSharpNameMatch)).Replace ('+', '.');
724 static public string CSharpName (Type[] types)
726 StringBuilder sb = new StringBuilder ();
727 foreach (Type t in types) {
728 sb.Append (CSharpName (t));
731 sb.Remove (sb.Length - 1, 1);
732 return sb.ToString ();
735 static String CSharpNameMatch (Match match)
737 string s = match.Groups [1].Captures [0].Value;
739 Replace ("int32", "int").
740 Replace ("uint32", "uint").
741 Replace ("int16", "short").
742 Replace ("uint16", "ushort").
743 Replace ("int64", "long").
744 Replace ("uint64", "ulong").
745 Replace ("single", "float").
746 Replace ("boolean", "bool")
747 + match.Groups [2].Captures [0].Value;
751 /// Returns the signature of the method with full namespace classification
753 static public string GetFullNameSignature (MemberInfo mi)
755 return (mi is MethodBase)
756 ? CSharpSignature (mi as MethodBase)
757 : CSharpName (mi.DeclaringType) + '.' + mi.Name;
761 /// When we need to report accessors as well
763 static public string CSharpSignature (MethodBase mb)
765 return CSharpSignature (mb, false);
769 /// Returns the signature of the method
771 static public string CSharpSignature (MethodBase mb, bool show_accessor)
773 StringBuilder sig = new StringBuilder (CSharpName (mb.DeclaringType));
776 ParameterData iparams = GetParameterData (mb);
777 string parameters = iparams.GetSignatureForError ();
778 string accessor = "";
781 if (mb.IsSpecialName) {
782 Operator.OpType ot = Operator.GetOperatorType (mb.Name);
783 if (ot != Operator.OpType.TOP) {
784 sig.Append ("operator ");
785 sig.Append (Operator.GetName (ot));
786 sig.Append (parameters);
787 return sig.ToString ();
790 if (mb.Name.StartsWith ("get_") || mb.Name.StartsWith ("set_")) {
791 accessor = mb.Name.Substring (0, 3);
796 if (mb.IsSpecialName && !mb.IsConstructor) {
797 if (iparams.Count > 1) {
798 sig.Append ("this[");
799 int before_ret_val = parameters.LastIndexOf (',');
800 sig.Append (parameters.Substring (1, before_ret_val - 1));
803 sig.Append (mb.Name.Substring (4));
806 if (mb.Name == ".ctor")
807 sig.Append (mb.DeclaringType.Name);
809 sig.Append (mb.Name);
811 sig.Append (parameters);
814 if (show_accessor && accessor.Length > 0) {
816 sig.Append (accessor);
819 return sig.ToString ();
822 static public string CSharpSignature (EventInfo ei)
824 return CSharpName (ei.DeclaringType) + '.' + ei.Name;
828 /// Looks up a type, and aborts if it is not found. This is used
829 /// by types required by the compiler
831 static Type CoreLookupType (string ns_name, string name)
833 Namespace ns = Namespace.LookupNamespace (ns_name, true);
834 FullNamedExpression fne = ns.Lookup (RootContext.Tree.Types, name, Location.Null);
835 Type t = fne == null ? null : fne.Type;
837 Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
842 /// Returns the MethodInfo for a method named `name' defined
843 /// in type `t' which takes arguments of types `args'
845 static MethodInfo GetMethod (Type t, string name, Type [] args, bool is_private, bool report_errors)
849 BindingFlags flags = instance_and_static | BindingFlags.Public;
855 flags |= BindingFlags.NonPublic;
857 list = FindMembers (t, MemberTypes.Method, flags, signature_filter, sig);
858 if (list.Count == 0) {
860 Report.Error (-19, "Can not find the core function `" + name + "'");
864 MethodInfo mi = list [0] as MethodInfo;
867 Report.Error (-19, "Can not find the core function `" + name + "'");
874 static MethodInfo GetMethod (Type t, string name, Type [] args, bool report_errors)
876 return GetMethod (t, name, args, false, report_errors);
879 static MethodInfo GetMethod (Type t, string name, Type [] args)
881 return GetMethod (t, name, args, true);
885 /// Returns the PropertyInfo for a property named `name' defined
888 static PropertyInfo GetProperty (Type t, string name)
890 MemberList list = FindMembers (t, MemberTypes.Property, BindingFlags.Public |
891 BindingFlags.Instance, Type.FilterName, name);
892 if (list.Count == 0) {
893 Report.Error (-19, "Can not find the core property `" + name + "'");
897 PropertyInfo pi = list [0] as PropertyInfo;
899 Report.Error (-19, "Can not find the core function `" + name + "'");
907 /// Returns the ConstructorInfo for "args"
909 public static ConstructorInfo GetConstructor (Type t, Type [] args)
917 list = FindMembers (t, MemberTypes.Constructor,
918 instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly,
919 signature_filter, sig);
920 if (list.Count == 0){
921 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
925 ConstructorInfo ci = list [0] as ConstructorInfo;
927 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
934 public static void InitEnumUnderlyingTypes ()
937 int32_type = CoreLookupType ("System", "Int32");
938 int64_type = CoreLookupType ("System", "Int64");
939 uint32_type = CoreLookupType ("System", "UInt32");
940 uint64_type = CoreLookupType ("System", "UInt64");
941 byte_type = CoreLookupType ("System", "Byte");
942 sbyte_type = CoreLookupType ("System", "SByte");
943 short_type = CoreLookupType ("System", "Int16");
944 ushort_type = CoreLookupType ("System", "UInt16");
948 /// The types have to be initialized after the initial
949 /// population of the type has happened (for example, to
950 /// bootstrap the corlib.dll
952 public static void InitCoreTypes ()
954 object_type = CoreLookupType ("System", "Object");
955 value_type = CoreLookupType ("System", "ValueType");
957 InitEnumUnderlyingTypes ();
959 char_type = CoreLookupType ("System", "Char");
960 string_type = CoreLookupType ("System", "String");
961 float_type = CoreLookupType ("System", "Single");
962 double_type = CoreLookupType ("System", "Double");
963 char_ptr_type = GetPointerType (char_type);
964 decimal_type = CoreLookupType ("System", "Decimal");
965 bool_type = CoreLookupType ("System", "Boolean");
966 enum_type = CoreLookupType ("System", "Enum");
968 multicast_delegate_type = CoreLookupType ("System", "MulticastDelegate");
969 delegate_type = CoreLookupType ("System", "Delegate");
971 array_type = CoreLookupType ("System", "Array");
972 void_type = CoreLookupType ("System", "Void");
973 type_type = CoreLookupType ("System", "Type");
975 runtime_field_handle_type = CoreLookupType ("System", "RuntimeFieldHandle");
976 runtime_argument_handle_type = CoreLookupType ("System", "RuntimeArgumentHandle");
977 runtime_helpers_type = CoreLookupType ("System.Runtime.CompilerServices", "RuntimeHelpers");
978 default_member_type = CoreLookupType ("System.Reflection", "DefaultMemberAttribute");
979 runtime_handle_type = CoreLookupType ("System", "RuntimeTypeHandle");
980 asynccallback_type = CoreLookupType ("System", "AsyncCallback");
981 iasyncresult_type = CoreLookupType ("System", "IAsyncResult");
982 ienumerator_type = CoreLookupType ("System.Collections", "IEnumerator");
983 ienumerable_type = CoreLookupType ("System.Collections", "IEnumerable");
984 idisposable_type = CoreLookupType ("System", "IDisposable");
985 icloneable_type = CoreLookupType ("System", "ICloneable");
986 iconvertible_type = CoreLookupType ("System", "IConvertible");
987 monitor_type = CoreLookupType ("System.Threading", "Monitor");
988 intptr_type = CoreLookupType ("System", "IntPtr");
990 attribute_type = CoreLookupType ("System", "Attribute");
991 attribute_usage_type = CoreLookupType ("System", "AttributeUsageAttribute");
992 dllimport_type = CoreLookupType ("System.Runtime.InteropServices", "DllImportAttribute");
993 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices", "MethodImplAttribute");
994 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices", "MarshalAsAttribute");
995 param_array_type = CoreLookupType ("System", "ParamArrayAttribute");
996 in_attribute_type = CoreLookupType ("System.Runtime.InteropServices", "InAttribute");
997 out_attribute_type = CoreLookupType ("System.Runtime.InteropServices", "OutAttribute");
998 typed_reference_type = CoreLookupType ("System", "TypedReference");
999 arg_iterator_type = CoreLookupType ("System", "ArgIterator");
1000 mbr_type = CoreLookupType ("System", "MarshalByRefObject");
1001 decimal_constant_attribute_type = CoreLookupType ("System.Runtime.CompilerServices", "DecimalConstantAttribute");
1003 unverifiable_code_type= CoreLookupType ("System.Security", "UnverifiableCodeAttribute");
1005 void_ptr_type = GetPointerType (void_type);
1007 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices", "IndexerNameAttribute");
1009 exception_type = CoreLookupType ("System", "Exception");
1010 invalid_operation_exception_type = CoreLookupType ("System", "InvalidOperationException");
1011 not_supported_exception_type = CoreLookupType ("System", "NotSupportedException");
1016 obsolete_attribute_type = CoreLookupType ("System", "ObsoleteAttribute");
1017 conditional_attribute_type = CoreLookupType ("System.Diagnostics", "ConditionalAttribute");
1018 cls_compliant_attribute_type = CoreLookupType ("System", "CLSCompliantAttribute");
1019 struct_layout_attribute_type = CoreLookupType ("System.Runtime.InteropServices", "StructLayoutAttribute");
1020 field_offset_attribute_type = CoreLookupType ("System.Runtime.InteropServices", "FieldOffsetAttribute");
1021 security_attr_type = CoreLookupType ("System.Security.Permissions", "SecurityAttribute");
1022 required_attr_type = CoreLookupType ("System.Runtime.CompilerServices", "RequiredAttributeAttribute");
1023 guid_attr_type = CoreLookupType ("System.Runtime.InteropServices", "GuidAttribute");
1024 assembly_culture_attribute_type = CoreLookupType ("System.Reflection", "AssemblyCultureAttribute");
1030 compiler_generated_attr_type = CoreLookupType ("System.Runtime.CompilerServices", "CompilerGeneratedAttribute");
1031 fixed_buffer_attr_type = CoreLookupType ("System.Runtime.CompilerServices", "FixedBufferAttribute");
1032 default_charset_type = CoreLookupType ("System.Runtime.InteropServices", "DefaultCharSetAttribute");
1035 // When compiling corlib, store the "real" types here.
1037 if (!RootContext.StdLib) {
1038 system_int32_type = typeof (System.Int32);
1039 system_array_type = typeof (System.Array);
1040 system_type_type = typeof (System.Type);
1041 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
1043 Type [] void_arg = { };
1044 system_int_array_get_length = GetMethod (
1045 system_array_type, "get_Length", void_arg);
1046 system_int_array_get_rank = GetMethod (
1047 system_array_type, "get_Rank", void_arg);
1048 system_object_array_clone = GetMethod (
1049 system_array_type, "Clone", void_arg);
1051 Type [] system_int_arg = { system_int32_type };
1052 system_int_array_get_length_int = GetMethod (
1053 system_array_type, "GetLength", system_int_arg);
1054 system_int_array_get_upper_bound_int = GetMethod (
1055 system_array_type, "GetUpperBound", system_int_arg);
1056 system_int_array_get_lower_bound_int = GetMethod (
1057 system_array_type, "GetLowerBound", system_int_arg);
1059 Type [] system_array_int_arg = { system_array_type, system_int32_type };
1060 system_void_array_copyto_array_int = GetMethod (
1061 system_array_type, "CopyTo", system_array_int_arg);
1063 Type [] system_3_type_arg = {
1064 system_type_type, system_type_type, system_type_type };
1065 Type [] system_4_type_arg = {
1066 system_type_type, system_type_type, system_type_type, system_type_type };
1068 MethodInfo set_corlib_type_builders = GetMethod (
1069 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1070 system_4_type_arg, true, false);
1072 if (set_corlib_type_builders != null) {
1073 object[] args = new object [4];
1074 args [0] = object_type;
1075 args [1] = value_type;
1076 args [2] = enum_type;
1077 args [3] = void_type;
1079 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1081 // Compatibility for an older version of the class libs.
1082 set_corlib_type_builders = GetMethod (
1083 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1084 system_3_type_arg, true, true);
1086 if (set_corlib_type_builders == null) {
1087 Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
1091 object[] args = new object [3];
1092 args [0] = object_type;
1093 args [1] = value_type;
1094 args [2] = enum_type;
1096 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1100 system_object_expr.Type = object_type;
1101 system_string_expr.Type = string_type;
1102 system_boolean_expr.Type = bool_type;
1103 system_decimal_expr.Type = decimal_type;
1104 system_single_expr.Type = float_type;
1105 system_double_expr.Type = double_type;
1106 system_sbyte_expr.Type = sbyte_type;
1107 system_byte_expr.Type = byte_type;
1108 system_int16_expr.Type = short_type;
1109 system_uint16_expr.Type = ushort_type;
1110 system_int32_expr.Type = int32_type;
1111 system_uint32_expr.Type = uint32_type;
1112 system_int64_expr.Type = int64_type;
1113 system_uint64_expr.Type = uint64_type;
1114 system_char_expr.Type = char_type;
1115 system_void_expr.Type = void_type;
1116 system_asynccallback_expr.Type = asynccallback_type;
1117 system_iasyncresult_expr.Type = iasyncresult_type;
1118 system_valuetype_expr.Type = value_type;
1121 // These are only used for compare purposes
1123 anonymous_method_type = typeof (AnonymousMethod);
1124 null_type = typeof (NullType);
1128 // The helper methods that are used by the compiler
1130 public static void InitCodeHelpers ()
1133 // Now load the default methods that we use.
1135 Type [] string_string = { string_type, string_type };
1136 string_concat_string_string = GetMethod (
1137 string_type, "Concat", string_string);
1138 Type [] string_string_string = { string_type, string_type, string_type };
1139 string_concat_string_string_string = GetMethod (
1140 string_type, "Concat", string_string_string);
1141 Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
1142 string_concat_string_string_string_string = GetMethod (
1143 string_type, "Concat", string_string_string_string);
1144 Type[] params_string = { GetConstructedType (string_type, "[]") };
1145 string_concat_string_dot_dot_dot = GetMethod (
1146 string_type, "Concat", params_string);
1148 Type [] object_object = { object_type, object_type };
1149 string_concat_object_object = GetMethod (
1150 string_type, "Concat", object_object);
1151 Type [] object_object_object = { object_type, object_type, object_type };
1152 string_concat_object_object_object = GetMethod (
1153 string_type, "Concat", object_object_object);
1154 Type[] params_object = { GetConstructedType (object_type, "[]") };
1155 string_concat_object_dot_dot_dot = GetMethod (
1156 string_type, "Concat", params_object);
1158 Type [] string_ = { string_type };
1159 string_isinterneted_string = GetMethod (
1160 string_type, "IsInterned", string_);
1162 Type [] runtime_type_handle = { runtime_handle_type };
1163 system_type_get_type_from_handle = GetMethod (
1164 type_type, "GetTypeFromHandle", runtime_type_handle);
1166 Type [] delegate_delegate = { delegate_type, delegate_type };
1167 delegate_combine_delegate_delegate = GetMethod (
1168 delegate_type, "Combine", delegate_delegate);
1170 delegate_remove_delegate_delegate = GetMethod (
1171 delegate_type, "Remove", delegate_delegate);
1176 Type [] void_arg = { };
1177 ienumerator_getcurrent = GetProperty (
1178 ienumerator_type, "Current");
1179 bool_movenext_void = GetMethod (
1180 ienumerator_type, "MoveNext", void_arg);
1181 void_reset_void = GetMethod (
1182 ienumerator_type, "Reset", void_arg);
1183 void_dispose_void = GetMethod (
1184 idisposable_type, "Dispose", void_arg);
1185 int_get_offset_to_string_data = GetMethod (
1186 runtime_helpers_type, "get_OffsetToStringData", void_arg);
1187 int_array_get_length = GetMethod (
1188 array_type, "get_Length", void_arg);
1189 int_array_get_rank = GetMethod (
1190 array_type, "get_Rank", void_arg);
1191 ienumerable_getenumerator_void = GetMethod (
1192 ienumerable_type, "GetEnumerator", void_arg);
1197 Type [] int_arg = { int32_type };
1198 int_array_get_length_int = GetMethod (
1199 array_type, "GetLength", int_arg);
1200 int_array_get_upper_bound_int = GetMethod (
1201 array_type, "GetUpperBound", int_arg);
1202 int_array_get_lower_bound_int = GetMethod (
1203 array_type, "GetLowerBound", int_arg);
1206 // System.Array methods
1208 object_array_clone = GetMethod (
1209 array_type, "Clone", void_arg);
1210 Type [] array_int_arg = { array_type, int32_type };
1211 void_array_copyto_array_int = GetMethod (
1212 array_type, "CopyTo", array_int_arg);
1217 Type [] object_arg = { object_type };
1218 void_monitor_enter_object = GetMethod (
1219 monitor_type, "Enter", object_arg);
1220 void_monitor_exit_object = GetMethod (
1221 monitor_type, "Exit", object_arg);
1223 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1225 void_initializearray_array_fieldhandle = GetMethod (
1226 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1231 int_getlength_int = GetMethod (
1232 array_type, "GetLength", int_arg);
1235 // Decimal constructors
1237 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1238 void_decimal_ctor_five_args = GetConstructor (
1239 decimal_type, dec_arg);
1241 void_decimal_ctor_int_arg = GetConstructor (decimal_type, int_arg);
1246 cons_param_array_attribute = GetConstructor (param_array_type, void_arg);
1247 unverifiable_code_ctor = GetConstructor (unverifiable_code_type, void_arg);
1248 default_member_ctor = GetConstructor (default_member_type, string_);
1250 Type[] short_arg = { short_type };
1251 struct_layout_attribute_ctor = GetConstructor (struct_layout_attribute_type, short_arg);
1253 decimal_constant_attribute_ctor = GetConstructor (decimal_constant_attribute_type, new Type []
1254 { byte_type, byte_type, uint32_type, uint32_type, uint32_type } );
1256 field_offset_attribute_ctor = GetConstructor (field_offset_attribute_type, new Type []
1263 compiler_generated_attr = new CustomAttributeBuilder (
1264 GetConstructor (compiler_generated_attr_type, void_arg), new object[0]);
1266 Type[] type_int_arg = { type_type, int32_type };
1267 fixed_buffer_attr_ctor = GetConstructor (fixed_buffer_attr_type, type_int_arg);
1271 object_ctor = GetConstructor (object_type, void_arg);
1275 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1278 /// This is the "old", non-cache based FindMembers() function. We cannot use
1279 /// the cache here because there is no member name argument.
1281 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1282 MemberFilter filter, object criteria)
1284 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1287 // `builder_to_declspace' contains all dynamic types.
1291 Timer.StartTimer (TimerType.FindMembers);
1292 list = decl.FindMembers (mt, bf, filter, criteria);
1293 Timer.StopTimer (TimerType.FindMembers);
1298 // We have to take care of arrays specially, because GetType on
1299 // a TypeBuilder array will return a Type, not a TypeBuilder,
1300 // and we can not call FindMembers on this type.
1302 if (t.IsSubclassOf (TypeManager.array_type))
1303 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1306 // Since FindMembers will not lookup both static and instance
1307 // members, we emulate this behaviour here.
1309 if ((bf & instance_and_static) == instance_and_static){
1310 MemberInfo [] i_members = t.FindMembers (
1311 mt, bf & ~BindingFlags.Static, filter, criteria);
1313 int i_len = i_members.Length;
1315 MemberInfo one = i_members [0];
1318 // If any of these are present, we are done!
1320 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1321 return new MemberList (i_members);
1324 MemberInfo [] s_members = t.FindMembers (
1325 mt, bf & ~BindingFlags.Instance, filter, criteria);
1327 int s_len = s_members.Length;
1328 if (i_len > 0 || s_len > 0)
1329 return new MemberList (i_members, s_members);
1332 return new MemberList (i_members);
1334 return new MemberList (s_members);
1338 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1343 /// This method is only called from within MemberLookup. It tries to use the member
1344 /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
1345 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1346 /// our return value will already contain all inherited members and the caller don't need
1347 /// to check base classes and interfaces anymore.
1349 private static MemberInfo [] MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1350 string name, out bool used_cache)
1355 // We have to take care of arrays specially, because GetType on
1356 // a TypeBuilder array will return a Type, not a TypeBuilder,
1357 // and we can not call FindMembers on this type.
1359 if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
1361 return TypeHandle.ArrayType.MemberCache.FindMembers (
1362 mt, bf, name, FilterWithClosure_delegate, null);
1366 // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
1367 // and we can ask the DeclSpace for the MemberCache.
1369 if (t is TypeBuilder) {
1370 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1371 cache = decl.MemberCache;
1374 // If this DeclSpace has a MemberCache, use it.
1377 if (cache != null) {
1379 return cache.FindMembers (
1380 mt, bf, name, FilterWithClosure_delegate, null);
1383 // If there is no MemberCache, we need to use the "normal" FindMembers.
1384 // Note, this is a VERY uncommon route!
1387 Timer.StartTimer (TimerType.FindMembers);
1388 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
1389 FilterWithClosure_delegate, name);
1390 Timer.StopTimer (TimerType.FindMembers);
1393 return (MemberInfo []) list;
1397 // This call will always succeed. There is exactly one TypeHandle instance per
1398 // type, TypeHandle.GetMemberCache() will, if necessary, create a new one, and return
1399 // the corresponding MemberCache.
1401 cache = TypeHandle.GetMemberCache (t);
1404 return cache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1407 public static bool IsBuiltinType (Type t)
1409 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1410 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1411 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1412 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
1418 public static bool IsBuiltinType (TypeContainer tc)
1420 return IsBuiltinType (tc.TypeBuilder);
1424 // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
1425 // the pieces in the code where we use IsBuiltinType and special case decimal_type.
1427 public static bool IsPrimitiveType (Type t)
1429 return (t == int32_type || t == uint32_type ||
1430 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1431 t == char_type || t == short_type || t == bool_type ||
1432 t == sbyte_type || t == byte_type || t == ushort_type);
1435 public static bool IsDelegateType (Type t)
1437 if (t.IsSubclassOf (TypeManager.delegate_type))
1443 public static bool IsEnumType (Type t)
1445 if (builder_to_declspace [t] is Enum)
1451 public static bool IsBuiltinOrEnum (Type t)
1453 if (IsBuiltinType (t))
1462 static Stack unmanaged_enclosing_types = new Stack (4);
1465 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1467 public static bool IsUnmanagedType (Type t)
1469 // Avoid infloops in the case of: unsafe struct Foo { Foo *x; }
1470 if (unmanaged_enclosing_types.Contains (t))
1473 // builtins that are not unmanaged types
1474 if (t == TypeManager.object_type || t == TypeManager.string_type)
1477 if (IsBuiltinOrEnum (t))
1480 // Someone did the work of checking if the ElementType of t is unmanaged. Let's not repeat it.
1484 // Arrays are disallowed, even if we mark them with [MarshalAs(UnmanagedType.ByValArray, ...)]
1488 if (!IsValueType (t))
1491 unmanaged_enclosing_types.Push (t);
1495 if (t is TypeBuilder){
1496 TypeContainer tc = LookupTypeContainer (t);
1497 if (tc.Fields != null){
1498 foreach (Field f in tc.Fields){
1499 // Avoid using f.FieldBuilder: f.Define () may not yet have been invoked.
1500 if ((f.ModFlags & Modifiers.STATIC) != 0)
1502 if (f.MemberType == null)
1504 if (!IsUnmanagedType (f.MemberType)){
1505 Report.SymbolRelatedToPreviousError (f.Location, CSharpName (t) + "." + f.Name);
1511 FieldInfo [] fields = t.GetFields (BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
1513 foreach (FieldInfo f in fields){
1514 if (!IsUnmanagedType (f.FieldType)){
1515 Report.SymbolRelatedToPreviousError (f);
1521 unmanaged_enclosing_types.Pop ();
1526 public static bool IsValueType (Type t)
1528 if (t.IsSubclassOf (TypeManager.value_type) && (t != TypeManager.enum_type))
1534 public static bool IsInterfaceType (Type t)
1536 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
1540 return tc.Kind == Kind.Interface;
1543 public static bool IsSubclassOf (Type type, Type base_type)
1546 if (type.Equals (base_type))
1549 type = type.BaseType;
1550 } while (type != null);
1555 public static bool IsFamilyAccessible (Type type, Type base_type)
1557 return IsSubclassOf (type, base_type);
1561 // Checks whether `type' is a subclass or nested child of `base_type'.
1563 public static bool IsNestedFamilyAccessible (Type type, Type base_type)
1566 if ((type == base_type) || type.IsSubclassOf (base_type))
1569 // Handle nested types.
1570 type = type.DeclaringType;
1571 } while (type != null);
1577 // Checks whether `type' is a nested child of `parent'.
1579 public static bool IsNestedChildOf (Type type, Type parent)
1584 type = type.DeclaringType;
1585 while (type != null) {
1589 type = type.DeclaringType;
1596 // Do the right thing when returning the element type of an
1597 // array type based on whether we are compiling corlib or not
1599 public static Type GetElementType (Type t)
1601 if (RootContext.StdLib)
1602 return t.GetElementType ();
1604 return TypeToCoreType (t.GetElementType ());
1608 /// This method is not implemented by MS runtime for dynamic types
1610 public static bool HasElementType (Type t)
1612 return t.IsArray || t.IsPointer || t.IsByRef;
1616 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1620 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1621 /// for anything which is dynamic, and we need this in a number of places,
1622 /// we register this information here, and use it afterwards.
1624 static public void RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1629 method_arguments.Add (mb, args);
1630 method_params.Add (mb, ip);
1633 static public ParameterData GetParameterData (MethodBase mb)
1635 object pd = method_params [mb];
1637 if (mb is MethodBuilder || mb is ConstructorBuilder)
1638 throw new InternalErrorException ("Argument for Method not registered" + mb);
1640 method_params [mb] = pd = new ReflectionParameters (mb);
1643 return (ParameterData) pd;
1646 static public void RegisterOverride (MethodBase override_method, MethodBase base_method)
1648 if (method_overrides.Contains (override_method)) {
1649 if (method_overrides [override_method] != base_method)
1650 throw new InternalErrorException ("Override mismatch: " + override_method);
1653 method_overrides [override_method] = base_method;
1656 static public bool IsOverride (MethodBase m)
1658 return m.IsVirtual &&
1659 (m.Attributes & MethodAttributes.NewSlot) == 0 &&
1660 (m is MethodBuilder || method_overrides.Contains (m));
1664 /// Returns the argument types for a method based on its methodbase
1666 /// For dynamic methods, we use the compiler provided types, for
1667 /// methods from existing assemblies we load them from GetParameters,
1668 /// and insert them into the cache
1670 static public Type [] GetArgumentTypes (MethodBase mb)
1672 object t = method_arguments [mb];
1676 ParameterInfo [] pi = mb.GetParameters ();
1683 types = new Type [c];
1684 for (int i = 0; i < c; i++)
1685 types [i] = pi [i].ParameterType;
1687 method_arguments.Add (mb, types);
1692 /// Returns the argument types for an indexer based on its PropertyInfo
1694 /// For dynamic indexers, we use the compiler provided types, for
1695 /// indexers from existing assemblies we load them from GetParameters,
1696 /// and insert them into the cache
1698 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1700 if (indexer_arguments.Contains (indexer))
1701 return (Type []) indexer_arguments [indexer];
1702 else if (indexer is PropertyBuilder)
1703 // If we're a PropertyBuilder and not in the
1704 // `indexer_arguments' hash, then we're a property and
1708 ParameterInfo [] pi = indexer.GetIndexParameters ();
1709 // Property, not an indexer.
1713 Type [] types = new Type [c];
1715 for (int i = 0; i < c; i++)
1716 types [i] = pi [i].ParameterType;
1718 indexer_arguments.Add (indexer, types);
1723 public static void RegisterConstant (FieldInfo fb, IConstant ic)
1725 fields.Add (fb, ic);
1728 public static IConstant GetConstant (FieldInfo fb)
1733 return (IConstant)fields [fb];
1736 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1738 if (fieldbuilders_to_fields.Contains (fb))
1741 fieldbuilders_to_fields.Add (fb, f);
1746 // The return value can be null; This will be the case for
1747 // auxiliary FieldBuilders created by the compiler that have no
1748 // real field being declared on the source code
1750 static public FieldBase GetField (FieldInfo fb)
1752 return (FieldBase) fieldbuilders_to_fields [fb];
1755 static Hashtable events;
1757 static public void RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1760 events = new Hashtable ();
1762 if (!events.Contains (eb)) {
1763 events.Add (eb, new Pair (add, remove));
1767 static public MethodInfo GetAddMethod (EventInfo ei)
1769 if (ei is MyEventBuilder) {
1770 Pair pair = (Pair) events [ei];
1772 return (MethodInfo) pair.First;
1774 return ei.GetAddMethod (true);
1777 static public MethodInfo GetRemoveMethod (EventInfo ei)
1779 if (ei is MyEventBuilder) {
1780 Pair pair = (Pair) events [ei];
1782 return (MethodInfo) pair.Second;
1784 return ei.GetRemoveMethod (true);
1787 static Hashtable priv_fields_events;
1789 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1791 if (priv_fields_events == null)
1792 priv_fields_events = new Hashtable ();
1794 if (priv_fields_events.Contains (einfo))
1797 priv_fields_events.Add (einfo, builder);
1802 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1804 if (priv_fields_events == null)
1807 return (MemberInfo) priv_fields_events [ei];
1810 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get,
1811 MethodBase set, Type[] args)
1813 indexer_arguments.Add (pb, args);
1818 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen)
1820 Hashtable hash = new Hashtable ();
1821 return CheckStructCycles (tc, seen, hash);
1824 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen,
1827 if ((tc.Kind != Kind.Struct) || IsBuiltinType (tc))
1831 // `seen' contains all types we've already visited.
1833 if (seen.Contains (tc))
1835 seen.Add (tc, null);
1837 if (tc.Fields == null)
1840 foreach (FieldMember field in tc.Fields) {
1841 if (field.FieldBuilder == null || field.FieldBuilder.IsStatic)
1844 Type ftype = field.FieldBuilder.FieldType;
1845 TypeContainer ftc = LookupTypeContainer (ftype);
1849 if (hash.Contains (ftc)) {
1850 Report.Error (523, tc.Location,
1851 "Struct member `{0}.{1}' of type `{2}' " +
1852 "causes a cycle in the struct layout",
1853 tc.Name, field.Name, ftc.Name);
1858 // `hash' contains all types in the current path.
1860 hash.Add (tc, null);
1862 bool ok = CheckStructCycles (ftc, seen, hash);
1869 if (!seen.Contains (ftc))
1870 seen.Add (ftc, null);
1877 /// Given an array of interface types, expand and eliminate repeated ocurrences
1878 /// of an interface.
1882 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
1885 public static Type[] ExpandInterfaces (EmitContext ec, TypeExpr [] base_interfaces)
1887 ArrayList new_ifaces = new ArrayList ();
1889 foreach (TypeExpr iface in base_interfaces){
1890 Type itype = iface.ResolveType (ec);
1894 if (!new_ifaces.Contains (itype))
1895 new_ifaces.Add (itype);
1897 Type [] implementing = itype.GetInterfaces ();
1899 foreach (Type imp in implementing){
1900 if (!new_ifaces.Contains (imp))
1901 new_ifaces.Add (imp);
1904 Type [] ret = new Type [new_ifaces.Count];
1905 new_ifaces.CopyTo (ret, 0);
1909 static PtrHashtable iface_cache = new PtrHashtable ();
1912 /// This function returns the interfaces in the type `t'. Works with
1913 /// both types and TypeBuilders.
1915 public static Type [] GetInterfaces (Type t)
1918 Type [] cached = iface_cache [t] as Type [];
1923 // The reason for catching the Array case is that Reflection.Emit
1924 // will not return a TypeBuilder for Array types of TypeBuilder types,
1925 // but will still throw an exception if we try to call GetInterfaces
1928 // Since the array interfaces are always constant, we return those for
1933 t = TypeManager.array_type;
1935 if (t is TypeBuilder){
1936 Type [] base_ifaces;
1938 if (t.BaseType == null)
1939 base_ifaces = NoTypes;
1941 base_ifaces = GetInterfaces (t.BaseType);
1942 Type [] type_ifaces = (Type []) builder_to_ifaces [t];
1943 if (type_ifaces == null)
1944 type_ifaces = NoTypes;
1946 int base_count = base_ifaces.Length;
1947 Type [] result = new Type [base_count + type_ifaces.Length];
1948 base_ifaces.CopyTo (result, 0);
1949 type_ifaces.CopyTo (result, base_count);
1951 iface_cache [t] = result;
1954 Type[] ifaces = t.GetInterfaces ();
1955 iface_cache [t] = ifaces;
1961 // gets the interfaces that are declared explicitly on t
1963 public static Type [] GetExplicitInterfaces (TypeBuilder t)
1965 return (Type []) builder_to_ifaces [t];
1969 /// The following is used to check if a given type implements an interface.
1970 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
1972 public static bool ImplementsInterface (Type t, Type iface)
1977 // FIXME OPTIMIZATION:
1978 // as soon as we hit a non-TypeBuiler in the interface
1979 // chain, we could return, as the `Type.GetInterfaces'
1980 // will return all the interfaces implement by the type
1984 interfaces = GetInterfaces (t);
1986 if (interfaces != null){
1987 foreach (Type i in interfaces){
1994 } while (t != null);
1999 static NumberFormatInfo nf_provider = CultureInfo.CurrentCulture.NumberFormat;
2001 // This is a custom version of Convert.ChangeType() which works
2002 // with the TypeBuilder defined types when compiling corlib.
2003 public static object ChangeType (object value, Type conversionType, out bool error)
2005 IConvertible convert_value = value as IConvertible;
2007 if (convert_value == null){
2013 // We must use Type.Equals() here since `conversionType' is
2014 // the TypeBuilder created version of a system type and not
2015 // the system type itself. You cannot use Type.GetTypeCode()
2016 // on such a type - it'd always return TypeCode.Object.
2020 if (conversionType.Equals (typeof (Boolean)))
2021 return (object)(convert_value.ToBoolean (nf_provider));
2022 else if (conversionType.Equals (typeof (Byte)))
2023 return (object)(convert_value.ToByte (nf_provider));
2024 else if (conversionType.Equals (typeof (Char)))
2025 return (object)(convert_value.ToChar (nf_provider));
2026 else if (conversionType.Equals (typeof (DateTime)))
2027 return (object)(convert_value.ToDateTime (nf_provider));
2028 else if (conversionType.Equals (TypeManager.decimal_type)) // typeof (Decimal)))
2029 return (object)(convert_value.ToDecimal (nf_provider));
2030 else if (conversionType.Equals (typeof (Double)))
2031 return (object)(convert_value.ToDouble (nf_provider));
2032 else if (conversionType.Equals (typeof (Int16)))
2033 return (object)(convert_value.ToInt16 (nf_provider));
2034 else if (conversionType.Equals (typeof (Int32)))
2035 return (object)(convert_value.ToInt32 (nf_provider));
2036 else if (conversionType.Equals (typeof (Int64)))
2037 return (object)(convert_value.ToInt64 (nf_provider));
2038 else if (conversionType.Equals (typeof (SByte)))
2039 return (object)(convert_value.ToSByte (nf_provider));
2040 else if (conversionType.Equals (typeof (Single)))
2041 return (object)(convert_value.ToSingle (nf_provider));
2042 else if (conversionType.Equals (typeof (String)))
2043 return (object)(convert_value.ToString (nf_provider));
2044 else if (conversionType.Equals (typeof (UInt16)))
2045 return (object)(convert_value.ToUInt16 (nf_provider));
2046 else if (conversionType.Equals (typeof (UInt32)))
2047 return (object)(convert_value.ToUInt32 (nf_provider));
2048 else if (conversionType.Equals (typeof (UInt64)))
2049 return (object)(convert_value.ToUInt64 (nf_provider));
2050 else if (conversionType.Equals (typeof (Object)))
2051 return (object)(value);
2061 // This is needed, because enumerations from assemblies
2062 // do not report their underlyingtype, but they report
2065 public static Type EnumToUnderlying (Type t)
2067 if (t == TypeManager.enum_type)
2070 t = t.UnderlyingSystemType;
2071 if (!TypeManager.IsEnumType (t))
2074 if (t is TypeBuilder) {
2075 // slow path needed to compile corlib
2076 if (t == TypeManager.bool_type ||
2077 t == TypeManager.byte_type ||
2078 t == TypeManager.sbyte_type ||
2079 t == TypeManager.char_type ||
2080 t == TypeManager.short_type ||
2081 t == TypeManager.ushort_type ||
2082 t == TypeManager.int32_type ||
2083 t == TypeManager.uint32_type ||
2084 t == TypeManager.int64_type ||
2085 t == TypeManager.uint64_type)
2088 TypeCode tc = Type.GetTypeCode (t);
2091 case TypeCode.Boolean:
2092 return TypeManager.bool_type;
2094 return TypeManager.byte_type;
2095 case TypeCode.SByte:
2096 return TypeManager.sbyte_type;
2098 return TypeManager.char_type;
2099 case TypeCode.Int16:
2100 return TypeManager.short_type;
2101 case TypeCode.UInt16:
2102 return TypeManager.ushort_type;
2103 case TypeCode.Int32:
2104 return TypeManager.int32_type;
2105 case TypeCode.UInt32:
2106 return TypeManager.uint32_type;
2107 case TypeCode.Int64:
2108 return TypeManager.int64_type;
2109 case TypeCode.UInt64:
2110 return TypeManager.uint64_type;
2112 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
2116 // When compiling corlib and called with one of the core types, return
2117 // the corresponding typebuilder for that type.
2119 public static Type TypeToCoreType (Type t)
2121 if (RootContext.StdLib || (t is TypeBuilder))
2124 TypeCode tc = Type.GetTypeCode (t);
2127 case TypeCode.Boolean:
2128 return TypeManager.bool_type;
2130 return TypeManager.byte_type;
2131 case TypeCode.SByte:
2132 return TypeManager.sbyte_type;
2134 return TypeManager.char_type;
2135 case TypeCode.Int16:
2136 return TypeManager.short_type;
2137 case TypeCode.UInt16:
2138 return TypeManager.ushort_type;
2139 case TypeCode.Int32:
2140 return TypeManager.int32_type;
2141 case TypeCode.UInt32:
2142 return TypeManager.uint32_type;
2143 case TypeCode.Int64:
2144 return TypeManager.int64_type;
2145 case TypeCode.UInt64:
2146 return TypeManager.uint64_type;
2147 case TypeCode.Single:
2148 return TypeManager.float_type;
2149 case TypeCode.Double:
2150 return TypeManager.double_type;
2151 case TypeCode.String:
2152 return TypeManager.string_type;
2153 case TypeCode.Decimal:
2154 return TypeManager.decimal_type;
2156 if (t == typeof (void))
2157 return TypeManager.void_type;
2158 if (t == typeof (object))
2159 return TypeManager.object_type;
2160 if (t == typeof (System.Type))
2161 return TypeManager.type_type;
2162 if (t == typeof (System.IntPtr))
2163 return TypeManager.intptr_type;
2169 /// Utility function that can be used to probe whether a type
2170 /// is managed or not.
2172 public static bool VerifyUnManaged (Type t, Location loc)
2174 if (IsUnmanagedType (t))
2177 Report.Error (208, loc, "Cannot take the address of, get the size of, or declare a pointer to a managed type `{0}'",
2184 /// Returns the name of the indexer in a given type.
2187 /// The default is not always `Item'. The user can change this behaviour by
2188 /// using the IndexerNameAttribute in the container.
2189 /// For example, the String class indexer is named `Chars' not `Item'
2191 public static string IndexerPropertyName (Type t)
2193 if (t is TypeBuilder) {
2194 TypeContainer tc = t.IsInterface ? LookupInterface (t) : LookupTypeContainer (t);
2195 return tc == null ? TypeContainer.DefaultIndexerName : tc.IndexerName;
2198 System.Attribute attr = System.Attribute.GetCustomAttribute (
2199 t, TypeManager.default_member_type);
2201 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
2202 return dma.MemberName;
2205 return TypeContainer.DefaultIndexerName;
2208 static MethodInfo declare_local_method = null;
2210 public static LocalBuilder DeclareLocalPinned (ILGenerator ig, Type t)
2212 if (declare_local_method == null){
2213 declare_local_method = typeof (ILGenerator).GetMethod (
2215 BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
2217 new Type [] { typeof (Type), typeof (bool)},
2219 if (declare_local_method == null){
2220 Report.Warning (-30, new Location (-1),
2221 "This version of the runtime does not support making pinned local variables. " +
2222 "This code may cause errors on a runtime with a moving GC");
2223 return ig.DeclareLocal (t);
2226 return (LocalBuilder) declare_local_method.Invoke (ig, new object [] { t, true });
2230 // Returns whether the array of memberinfos contains the given method
2232 public static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
2234 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
2236 foreach (MethodBase method in array) {
2237 if (method.Name != new_method.Name)
2240 if (method is MethodInfo && new_method is MethodInfo)
2241 if (((MethodInfo) method).ReturnType != ((MethodInfo) new_method).ReturnType)
2245 Type [] old_args = TypeManager.GetArgumentTypes (method);
2246 int old_count = old_args.Length;
2249 if (new_args.Length != old_count)
2252 for (i = 0; i < old_count; i++){
2253 if (old_args [i] != new_args [i])
2266 // We copy methods from `new_members' into `target_list' if the signature
2267 // for the method from in the new list does not exist in the target_list
2269 // The name is assumed to be the same.
2271 public static ArrayList CopyNewMethods (ArrayList target_list, IList new_members)
2273 if (target_list == null){
2274 target_list = new ArrayList ();
2276 foreach (MemberInfo mi in new_members){
2277 if (mi is MethodBase)
2278 target_list.Add (mi);
2283 MemberInfo [] target_array = new MemberInfo [target_list.Count];
2284 target_list.CopyTo (target_array, 0);
2286 foreach (MemberInfo mi in new_members){
2287 MethodBase new_method = (MethodBase) mi;
2289 if (!ArrayContainsMethod (target_array, new_method))
2290 target_list.Add (new_method);
2296 #region MemberLookup implementation
2299 // Whether we allow private members in the result (since FindMembers
2300 // uses NonPublic for both protected and private), we need to distinguish.
2303 static internal bool FilterNone (MemberInfo m, object filter_criteria)
2308 internal class Closure {
2309 internal bool private_ok;
2311 // Who is invoking us and which type is being queried currently.
2312 internal Type invocation_type;
2313 internal Type qualifier_type;
2315 // The assembly that defines the type is that is calling us
2316 internal Assembly invocation_assembly;
2317 internal IList almost_match;
2319 private bool CheckValidFamilyAccess (bool is_static, MemberInfo m)
2321 if (invocation_type == null)
2324 if (is_static && qualifier_type == null)
2325 // It resolved from a simple name, so it should be visible.
2328 // A nested class has access to all the protected members visible to its parent.
2329 if (qualifier_type != null && TypeManager.IsNestedChildOf (invocation_type, qualifier_type))
2332 if (invocation_type == m.DeclaringType || invocation_type.IsSubclassOf (m.DeclaringType)) {
2333 // Although a derived class can access protected members of its base class
2334 // it cannot do so through an instance of the base class (CS1540).
2335 // => Ancestry should be: declaring_type ->* invocation_type ->* qualified_type
2337 qualifier_type == null ||
2338 qualifier_type == invocation_type ||
2339 qualifier_type.IsSubclassOf (invocation_type))
2343 if (almost_match != null)
2344 almost_match.Add (m);
2350 // This filter filters by name + whether it is ok to include private
2351 // members in the search
2353 internal bool Filter (MemberInfo m, object filter_criteria)
2356 // Hack: we know that the filter criteria will always be in the `closure'
2360 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2363 if (((qualifier_type == null) || (qualifier_type == invocation_type)) &&
2364 (m.DeclaringType == invocation_type))
2368 // Ugly: we need to find out the type of `m', and depending
2369 // on this, tell whether we accept or not
2371 if (m is MethodBase){
2372 MethodBase mb = (MethodBase) m;
2373 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2375 if (ma == MethodAttributes.Private)
2376 return private_ok || invocation_type == m.DeclaringType ||
2377 IsNestedChildOf (invocation_type, m.DeclaringType);
2379 if (invocation_assembly == mb.DeclaringType.Assembly) {
2380 if (ma == MethodAttributes.Assembly || ma == MethodAttributes.FamORAssem)
2383 if (ma == MethodAttributes.Assembly || ma == MethodAttributes.FamANDAssem)
2387 if (ma == MethodAttributes.Family ||
2388 ma == MethodAttributes.FamANDAssem ||
2389 ma == MethodAttributes.FamORAssem)
2390 return CheckValidFamilyAccess (mb.IsStatic, m);
2396 if (m is FieldInfo){
2397 FieldInfo fi = (FieldInfo) m;
2398 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2400 if (fa == FieldAttributes.Private)
2401 return private_ok || (invocation_type == m.DeclaringType) ||
2402 IsNestedChildOf (invocation_type, m.DeclaringType);
2404 if (invocation_assembly == fi.DeclaringType.Assembly) {
2405 if (fa == FieldAttributes.Assembly || fa == FieldAttributes.FamORAssem)
2408 if (fa == FieldAttributes.Assembly || fa == FieldAttributes.FamANDAssem)
2412 if (fa == FieldAttributes.Family ||
2413 fa == FieldAttributes.FamANDAssem ||
2414 fa == FieldAttributes.FamORAssem)
2415 return CheckValidFamilyAccess (fi.IsStatic, m);
2422 // EventInfos and PropertyInfos, return true because they lack permission
2423 // information, so we need to check later on the methods.
2429 static Closure closure = new Closure ();
2430 static MemberFilter FilterWithClosure_delegate = new MemberFilter (closure.Filter);
2433 // Looks up a member called `name' in the `queried_type'. This lookup
2434 // is done by code that is contained in the definition for `invocation_type'
2435 // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
2437 // `invocation_type' is used to check whether we're allowed to access the requested
2438 // member wrt its protection level.
2440 // When called from MemberAccess, `qualifier_type' is the type which is used to access
2441 // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
2442 // is B and qualifier_type is A). This is used to do the CS1540 check.
2444 // When resolving a SimpleName, `qualifier_type' is null.
2446 // The `qualifier_type' is used for the CS1540 check; it's normally either null or
2447 // the same than `queried_type' - except when we're being called from BaseAccess;
2448 // in this case, `invocation_type' is the current type and `queried_type' the base
2449 // type, so this'd normally trigger a CS1540.
2451 // The binding flags are `bf' and the kind of members being looked up are `mt'
2453 // The return value always includes private members which code in `invocation_type'
2454 // is allowed to access (using the specified `qualifier_type' if given); only use
2455 // BindingFlags.NonPublic to bypass the permission check.
2457 // The 'almost_match' argument is used for reporting error CS1540.
2459 // Returns an array of a single element for everything but Methods/Constructors
2460 // that might return multiple matches.
2462 public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_type,
2463 Type queried_type, MemberTypes mt,
2464 BindingFlags original_bf, string name, IList almost_match)
2466 Timer.StartTimer (TimerType.MemberLookup);
2468 MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_type,
2469 queried_type, mt, original_bf, name, almost_match);
2471 Timer.StopTimer (TimerType.MemberLookup);
2476 static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_type,
2477 Type queried_type, MemberTypes mt,
2478 BindingFlags original_bf, string name, IList almost_match)
2480 BindingFlags bf = original_bf;
2482 ArrayList method_list = null;
2483 Type current_type = queried_type;
2484 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2485 bool skip_iface_check = true, used_cache = false;
2486 bool always_ok_flag = invocation_type != null && IsNestedChildOf (invocation_type, queried_type);
2488 closure.invocation_type = invocation_type;
2489 closure.invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2490 closure.qualifier_type = qualifier_type;
2491 closure.almost_match = almost_match;
2493 // This is from the first time we find a method
2494 // in most cases, we do not actually find a method in the base class
2495 // so we can just ignore it, and save the arraylist allocation
2496 MemberInfo [] first_members_list = null;
2497 bool use_first_members_list = false;
2503 // `NonPublic' is lame, because it includes both protected and
2504 // private methods, so we need to control this behavior by
2505 // explicitly tracking if a private method is ok or not.
2507 // The possible cases are:
2508 // public, private and protected (internal does not come into the
2511 if ((invocation_type != null) &&
2512 ((invocation_type == current_type) ||
2513 IsNestedChildOf (invocation_type, current_type)) ||
2515 bf = original_bf | BindingFlags.NonPublic;
2519 closure.private_ok = (original_bf & BindingFlags.NonPublic) != 0;
2521 Timer.StopTimer (TimerType.MemberLookup);
2523 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2525 Timer.StartTimer (TimerType.MemberLookup);
2528 // When queried for an interface type, the cache will automatically check all
2529 // inherited members, so we don't need to do this here. However, this only
2530 // works if we already used the cache in the first iteration of this loop.
2532 // If we used the cache in any further iteration, we can still terminate the
2533 // loop since the cache always looks in all base classes.
2539 skip_iface_check = false;
2541 if (current_type == TypeManager.object_type)
2544 current_type = current_type.BaseType;
2547 // This happens with interfaces, they have a null
2548 // basetype. Look members up in the Object class.
2550 if (current_type == null) {
2551 current_type = TypeManager.object_type;
2556 if (list.Length == 0)
2560 // Events and types are returned by both `static' and `instance'
2561 // searches, which means that our above FindMembers will
2562 // return two copies of the same.
2564 if (list.Length == 1 && !(list [0] is MethodBase)){
2569 // Multiple properties: we query those just to find out the indexer
2572 if (list [0] is PropertyInfo)
2576 // We found an event: the cache lookup returns both the event and
2577 // its private field.
2579 if (list [0] is EventInfo) {
2580 if ((list.Length == 2) && (list [1] is FieldInfo))
2581 return new MemberInfo [] { list [0] };
2588 // We found methods, turn the search into "method scan"
2592 if (first_members_list != null) {
2593 if (use_first_members_list) {
2594 method_list = CopyNewMethods (method_list, first_members_list);
2595 use_first_members_list = false;
2598 method_list = CopyNewMethods (method_list, list);
2600 first_members_list = list;
2601 use_first_members_list = true;
2602 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2604 } while (searching);
2606 if (use_first_members_list) {
2607 foreach (MemberInfo mi in first_members_list) {
2608 if (! (mi is MethodBase)) {
2609 method_list = CopyNewMethods (method_list, first_members_list);
2610 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2613 return (MemberInfo []) first_members_list;
2616 if (method_list != null && method_list.Count > 0)
2617 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2620 // This happens if we already used the cache in the first iteration, in this case
2621 // the cache already looked in all interfaces.
2623 if (skip_iface_check)
2627 // Interfaces do not list members they inherit, so we have to
2630 if (!queried_type.IsInterface)
2633 if (queried_type.IsArray)
2634 queried_type = TypeManager.array_type;
2636 Type [] ifaces = GetInterfaces (queried_type);
2640 foreach (Type itype in ifaces){
2643 x = MemberLookup (null, null, itype, mt, bf, name, null);
2651 // Tests whether external method is really special
2652 public static bool IsSpecialMethod (MethodBase mb)
2654 string name = mb.Name;
2655 if (name.StartsWith ("get_") || name.StartsWith ("set_"))
2656 return mb.DeclaringType.GetProperty (name.Substring (4)) != null;
2658 if (name.StartsWith ("add_"))
2659 return mb.DeclaringType.GetEvent (name.Substring (4)) != null;
2661 if (name.StartsWith ("remove_"))
2662 return mb.DeclaringType.GetEvent (name.Substring (7)) != null;
2664 if (name.StartsWith ("op_")){
2665 foreach (string oname in Unary.oper_names) {
2670 foreach (string oname in Binary.oper_names) {
2683 /// There is exactly one instance of this class per type.
2685 public sealed class TypeHandle : IMemberContainer {
2686 public readonly IMemberContainer BaseType;
2688 readonly int id = ++next_id;
2689 static int next_id = 0;
2691 static TypeHandle ()
2697 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2698 /// a TypeHandle yet, a new instance of it is created. This static method
2699 /// ensures that we'll only have one TypeHandle instance per type.
2701 private static TypeHandle GetTypeHandle (Type t)
2703 TypeHandle handle = (TypeHandle) type_hash [t];
2707 handle = new TypeHandle (t);
2708 type_hash.Add (t, handle);
2712 public static MemberCache GetMemberCache (Type t)
2714 return GetTypeHandle (t).MemberCache;
2717 public static void CleanUp ()
2722 public static void Reset ()
2724 type_hash = new PtrHashtable ();
2728 /// Returns the TypeHandle for TypeManager.object_type.
2730 public static IMemberContainer ObjectType {
2732 if (object_type != null)
2735 object_type = GetTypeHandle (TypeManager.object_type);
2742 /// Returns the TypeHandle for TypeManager.array_type.
2744 public static IMemberContainer ArrayType {
2746 if (array_type != null)
2749 array_type = GetTypeHandle (TypeManager.array_type);
2755 private static PtrHashtable type_hash;
2757 private static TypeHandle object_type = null;
2758 private static TypeHandle array_type = null;
2761 private bool is_interface;
2762 private MemberCache member_cache;
2763 private MemberCache base_cache;
2765 private TypeHandle (Type type)
2768 if (type.BaseType != null) {
2769 base_cache = TypeManager.LookupMemberCache (type.BaseType);
2770 BaseType = base_cache.Container;
2771 } else if (type.IsInterface)
2772 base_cache = TypeManager.LookupBaseInterfacesCache (type);
2773 this.is_interface = type.IsInterface;
2774 this.member_cache = new MemberCache (this);
2777 // IMemberContainer methods
2779 public string Name {
2781 return type.FullName;
2791 public MemberCache BaseCache {
2797 public bool IsInterface {
2799 return is_interface;
2803 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
2805 MemberInfo [] members;
2806 if (mt == MemberTypes.Event)
2807 members = type.GetEvents (bf | BindingFlags.DeclaredOnly);
2809 members = type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
2811 Array.Reverse (members);
2813 return new MemberList (members);
2816 // IMemberFinder methods
2818 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
2819 MemberFilter filter, object criteria)
2821 return new MemberList (member_cache.FindMembers (mt, bf, name, filter, criteria));
2824 public MemberCache MemberCache {
2826 return member_cache;
2830 public override string ToString ()
2832 if (BaseType != null)
2833 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
2835 return "TypeHandle (" + id + "," + Name + ")";