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 builder_to_constant = null;
291 fieldbuilders_to_fields = null;
293 priv_fields_events = null;
297 TypeHandle.CleanUp ();
301 /// A filter for Findmembers that uses the Signature object to
304 static bool SignatureFilter (MemberInfo mi, object criteria)
306 Signature sig = (Signature) criteria;
308 if (!(mi is MethodBase))
311 if (mi.Name != sig.name)
314 int count = sig.args.Length;
316 if (mi is MethodBuilder || mi is ConstructorBuilder){
317 Type [] candidate_args = GetArgumentTypes ((MethodBase) mi);
319 if (candidate_args.Length != count)
322 for (int i = 0; i < count; i++)
323 if (candidate_args [i] != sig.args [i])
328 ParameterInfo [] pars = ((MethodBase) mi).GetParameters ();
330 if (pars.Length != count)
333 for (int i = 0; i < count; i++)
334 if (pars [i].ParameterType != sig.args [i])
340 // A delegate that points to the filter above.
341 static MemberFilter signature_filter;
344 // These are expressions that represent some of the internal data types, used
347 static void InitExpressionTypes ()
349 system_object_expr = new TypeLookupExpression ("System.Object");
350 system_string_expr = new TypeLookupExpression ("System.String");
351 system_boolean_expr = new TypeLookupExpression ("System.Boolean");
352 system_decimal_expr = new TypeLookupExpression ("System.Decimal");
353 system_single_expr = new TypeLookupExpression ("System.Single");
354 system_double_expr = new TypeLookupExpression ("System.Double");
355 system_sbyte_expr = new TypeLookupExpression ("System.SByte");
356 system_byte_expr = new TypeLookupExpression ("System.Byte");
357 system_int16_expr = new TypeLookupExpression ("System.Int16");
358 system_uint16_expr = new TypeLookupExpression ("System.UInt16");
359 system_int32_expr = new TypeLookupExpression ("System.Int32");
360 system_uint32_expr = new TypeLookupExpression ("System.UInt32");
361 system_int64_expr = new TypeLookupExpression ("System.Int64");
362 system_uint64_expr = new TypeLookupExpression ("System.UInt64");
363 system_char_expr = new TypeLookupExpression ("System.Char");
364 system_void_expr = new TypeLookupExpression ("System.Void");
365 system_asynccallback_expr = new TypeLookupExpression ("System.AsyncCallback");
366 system_iasyncresult_expr = new TypeLookupExpression ("System.IAsyncResult");
367 system_valuetype_expr = new TypeLookupExpression ("System.ValueType");
368 system_intptr_expr = new TypeLookupExpression ("System.IntPtr");
371 static TypeManager ()
375 signature_filter = new MemberFilter (SignatureFilter);
376 InitExpressionTypes ();
379 static public void Reset ()
381 assemblies = new Assembly [0];
384 builder_to_declspace = new PtrHashtable ();
385 builder_to_member_cache = new PtrHashtable ();
386 builder_to_method = new PtrHashtable ();
387 method_arguments = new PtrHashtable ();
388 method_params = new PtrHashtable ();
389 method_overrides = new PtrHashtable ();
390 indexer_arguments = new PtrHashtable ();
391 builder_to_ifaces = new PtrHashtable ();
393 NoTypes = new Type [0];
394 NoTypeExprs = new TypeExpr [0];
396 fieldbuilders_to_fields = new Hashtable ();
397 fields = new Hashtable ();
398 type_hash = new DoubleHash ();
401 public static void AddUserType (string name, DeclSpace ds)
403 builder_to_declspace.Add (ds.TypeBuilder, ds);
407 // This entry point is used by types that we define under the covers
409 public static void RegisterBuilder (Type tb, Type [] ifaces)
412 builder_to_ifaces [tb] = ifaces;
415 public static void AddMethod (MethodBase builder, IMethodData method)
417 builder_to_method.Add (builder, method);
420 public static IMethodData GetMethod (MethodBase builder)
422 return (IMethodData) builder_to_method [builder];
426 /// Returns the DeclSpace whose Type is `t' or null if there is no
427 /// DeclSpace for `t' (ie, the Type comes from a library)
429 public static DeclSpace LookupDeclSpace (Type t)
431 return builder_to_declspace [t] as DeclSpace;
435 /// Returns the TypeContainer whose Type is `t' or null if there is no
436 /// TypeContainer for `t' (ie, the Type comes from a library)
438 public static TypeContainer LookupTypeContainer (Type t)
440 return builder_to_declspace [t] as TypeContainer;
443 public static MemberCache LookupMemberCache (Type t)
445 if (t is TypeBuilder) {
446 IMemberContainer container = builder_to_declspace [t] as IMemberContainer;
447 if (container != null)
448 return container.MemberCache;
451 return TypeHandle.GetMemberCache (t);
454 public static MemberCache LookupBaseInterfacesCache (Type t)
456 Type [] ifaces = t.GetInterfaces ();
458 if (ifaces != null && ifaces.Length == 1)
459 return LookupMemberCache (ifaces [0]);
461 // TODO: the builder_to_member_cache should be indexed by 'ifaces', not 't'
462 MemberCache cache = builder_to_member_cache [t] as MemberCache;
466 cache = new MemberCache (ifaces);
467 builder_to_member_cache.Add (t, cache);
471 public static TypeContainer LookupInterface (Type t)
473 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
474 if ((tc == null) || (tc.Kind != Kind.Interface))
480 public static Delegate LookupDelegate (Type t)
482 return builder_to_declspace [t] as Delegate;
485 public static Enum LookupEnum (Type t)
487 return builder_to_declspace [t] as Enum;
490 public static Class LookupClass (Type t)
492 return (Class) builder_to_declspace [t];
496 /// Registers an assembly to load types from.
498 public static void AddAssembly (Assembly a)
500 foreach (Assembly assembly in assemblies) {
505 int top = assemblies.Length;
506 Assembly [] n = new Assembly [top + 1];
508 assemblies.CopyTo (n, 0);
514 public static Assembly [] GetAssemblies ()
520 /// Registers a module builder to lookup types from
522 public static void AddModule (Module mb)
524 int top = modules != null ? modules.Length : 0;
525 Module [] n = new Module [top + 1];
528 modules.CopyTo (n, 0);
533 public static Module[] Modules {
540 // We use this hash for multiple kinds of constructed types:
542 // (T, "&") Given T, get T &
543 // (T, "*") Given T, get T *
544 // (T, "[]") Given T and a array dimension, get T []
545 // (T, X) Given a type T and a simple name X, get the type T+X
547 // Accessibility tests, if necessary, should be done by the user
549 static DoubleHash type_hash = new DoubleHash ();
552 // Gets the reference to T version of the Type (T&)
554 public static Type GetReferenceType (Type t)
556 return GetConstructedType (t, "&");
560 // Gets the pointer to T version of the Type (T*)
562 public static Type GetPointerType (Type t)
564 return GetConstructedType (t, "*");
567 public static Type GetConstructedType (Type t, string dim)
570 if (!type_hash.Lookup (t, dim, out ret)) {
571 ret = t.Module.GetType (t.ToString () + dim);
572 type_hash.Insert (t, dim, ret);
577 public static Type GetNestedType (Type t, string name)
580 if (!type_hash.Lookup (t, name, out ret)) {
581 ret = t.GetNestedType (name,
582 BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.DeclaredOnly);
583 type_hash.Insert (t, name, ret);
588 public static Type LookupTypeReflection (string name, Location loc)
590 Type found_type = null;
592 foreach (Assembly a in assemblies) {
593 Type t = a.GetType (name);
598 throw new InternalErrorException ("Use GetPointerType() to get a pointer");
600 TypeAttributes ta = t.Attributes & TypeAttributes.VisibilityMask;
601 if (ta != TypeAttributes.NotPublic && ta != TypeAttributes.NestedPrivate &&
602 ta != TypeAttributes.NestedAssembly && ta != TypeAttributes.NestedFamANDAssem) {
603 if (found_type == null) {
608 Report.SymbolRelatedToPreviousError (found_type);
609 Report.SymbolRelatedToPreviousError (t);
610 Report.Error (433, loc, "The imported type `{0}' is defined multiple times", name);
615 foreach (Module mb in modules) {
616 Type t = mb.GetType (name);
620 if (found_type == null) {
625 Report.SymbolRelatedToPreviousError (t);
626 Report.SymbolRelatedToPreviousError (found_type);
627 Report.Warning (436, 2, loc, "Ignoring imported type `{0}' since the current assembly already has a declaration with the same name",
628 TypeManager.CSharpName (t));
636 /// Computes the namespaces that we import from the assemblies we reference.
638 public static void ComputeNamespaces ()
640 MethodInfo assembly_get_namespaces = typeof (Assembly).GetMethod ("GetNamespaces", BindingFlags.Instance|BindingFlags.NonPublic);
642 Hashtable cache = null;
645 // First add the assembly namespaces
647 if (assembly_get_namespaces != null){
648 int count = assemblies.Length;
650 for (int i = 0; i < count; i++){
651 Assembly a = assemblies [i];
652 string [] namespaces = (string []) assembly_get_namespaces.Invoke (a, null);
653 foreach (string ns in namespaces){
656 Namespace.LookupNamespace (ns, true);
660 cache = new Hashtable ();
661 cache.Add ("", null);
662 foreach (Assembly a in assemblies) {
663 foreach (Type t in a.GetExportedTypes ()) {
664 string ns = t.Namespace;
665 if (ns == null || cache.Contains (ns))
668 Namespace.LookupNamespace (ns, true);
669 cache.Add (ns, null);
675 // Then add module namespaces
677 foreach (Module m in modules) {
678 if (m == CodeGen.Module.Builder)
681 cache = new Hashtable ();
682 cache.Add ("", null);
684 foreach (Type t in m.GetTypes ()) {
685 string ns = t.Namespace;
686 if (ns == null || cache.Contains (ns))
688 Namespace.LookupNamespace (ns, true);
689 cache.Add (ns, null);
695 /// Fills static table with exported types from all referenced assemblies.
696 /// This information is required for CLS Compliance tests.
698 public static void LoadAllImportedTypes ()
700 AllClsTopLevelTypes = new Hashtable (1500);
701 foreach (Assembly a in assemblies) {
702 foreach (Type t in a.GetExportedTypes ()) {
703 AllClsTopLevelTypes [t.FullName.ToLower (System.Globalization.CultureInfo.InvariantCulture)] = null;
708 public static bool NamespaceClash (string name, Location loc)
710 if (Namespace.LookupNamespace (name, false) == null)
713 Report.Error (519, loc, String.Format ("`{0}' clashes with a predefined namespace", name));
718 /// Returns the C# name of a type if possible, or the full type name otherwise
720 static public string CSharpName (Type t)
722 return Regex.Replace (t.FullName,
724 @"(Int32|UInt32|Int16|UInt16|Int64|UInt64|" +
725 @"Single|Double|Char|Decimal|Byte|SByte|Object|" +
726 @"Boolean|String|Void|Null)" +
728 new MatchEvaluator (CSharpNameMatch)).Replace ('+', '.');
731 static public string CSharpName (Type[] types)
733 StringBuilder sb = new StringBuilder ();
734 foreach (Type t in types) {
735 sb.Append (CSharpName (t));
738 sb.Remove (sb.Length - 1, 1);
739 return sb.ToString ();
742 static String CSharpNameMatch (Match match)
744 string s = match.Groups [1].Captures [0].Value;
746 Replace ("int32", "int").
747 Replace ("uint32", "uint").
748 Replace ("int16", "short").
749 Replace ("uint16", "ushort").
750 Replace ("int64", "long").
751 Replace ("uint64", "ulong").
752 Replace ("single", "float").
753 Replace ("boolean", "bool")
754 + match.Groups [2].Captures [0].Value;
758 /// Returns the signature of the method with full namespace classification
760 static public string GetFullNameSignature (MemberInfo mi)
762 return (mi is MethodBase)
763 ? CSharpSignature (mi as MethodBase)
764 : CSharpName (mi.DeclaringType) + '.' + mi.Name;
768 /// When we need to report accessors as well
770 static public string CSharpSignature (MethodBase mb)
772 return CSharpSignature (mb, false);
776 /// Returns the signature of the method
778 static public string CSharpSignature (MethodBase mb, bool show_accessor)
780 StringBuilder sig = new StringBuilder (CSharpName (mb.DeclaringType));
783 ParameterData iparams = GetParameterData (mb);
784 string parameters = iparams.GetSignatureForError ();
785 string accessor = "";
788 if (mb.IsSpecialName) {
789 Operator.OpType ot = Operator.GetOperatorType (mb.Name);
790 if (ot != Operator.OpType.TOP) {
791 sig.Append ("operator ");
792 sig.Append (Operator.GetName (ot));
793 sig.Append (parameters);
794 return sig.ToString ();
797 if (mb.Name.StartsWith ("get_") || mb.Name.StartsWith ("set_")) {
798 accessor = mb.Name.Substring (0, 3);
803 if (mb.IsSpecialName && !mb.IsConstructor) {
804 if (iparams.Count > 1) {
805 sig.Append ("this[");
806 int before_ret_val = parameters.LastIndexOf (',');
807 sig.Append (parameters.Substring (1, before_ret_val - 1));
810 sig.Append (mb.Name.Substring (4));
813 if (mb.Name == ".ctor")
814 sig.Append (mb.DeclaringType.Name);
816 sig.Append (mb.Name);
818 sig.Append (parameters);
821 if (show_accessor && accessor.Length > 0) {
823 sig.Append (accessor);
826 return sig.ToString ();
829 static public string CSharpSignature (EventInfo ei)
831 return CSharpName (ei.DeclaringType) + '.' + ei.Name;
835 /// Looks up a type, and aborts if it is not found. This is used
836 /// by types required by the compiler
838 static Type CoreLookupType (string ns_name, string name)
840 Namespace ns = Namespace.LookupNamespace (ns_name, true);
841 FullNamedExpression fne = ns.Lookup (RootContext.Tree.Types, name, Location.Null);
842 Type t = fne == null ? null : fne.Type;
844 Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
849 /// Returns the MethodInfo for a method named `name' defined
850 /// in type `t' which takes arguments of types `args'
852 static MethodInfo GetMethod (Type t, string name, Type [] args, bool is_private, bool report_errors)
856 BindingFlags flags = instance_and_static | BindingFlags.Public;
862 flags |= BindingFlags.NonPublic;
864 list = FindMembers (t, MemberTypes.Method, flags, signature_filter, sig);
865 if (list.Count == 0) {
867 Report.Error (-19, "Can not find the core function `" + name + "'");
871 MethodInfo mi = list [0] as MethodInfo;
874 Report.Error (-19, "Can not find the core function `" + name + "'");
881 static MethodInfo GetMethod (Type t, string name, Type [] args, bool report_errors)
883 return GetMethod (t, name, args, false, report_errors);
886 static MethodInfo GetMethod (Type t, string name, Type [] args)
888 return GetMethod (t, name, args, true);
892 /// Returns the PropertyInfo for a property named `name' defined
895 static PropertyInfo GetProperty (Type t, string name)
897 MemberList list = FindMembers (t, MemberTypes.Property, BindingFlags.Public |
898 BindingFlags.Instance, Type.FilterName, name);
899 if (list.Count == 0) {
900 Report.Error (-19, "Can not find the core property `" + name + "'");
904 PropertyInfo pi = list [0] as PropertyInfo;
906 Report.Error (-19, "Can not find the core function `" + name + "'");
914 /// Returns the ConstructorInfo for "args"
916 public static ConstructorInfo GetConstructor (Type t, Type [] args)
924 list = FindMembers (t, MemberTypes.Constructor,
925 instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly,
926 signature_filter, sig);
927 if (list.Count == 0){
928 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
932 ConstructorInfo ci = list [0] as ConstructorInfo;
934 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
941 public static void InitEnumUnderlyingTypes ()
944 int32_type = CoreLookupType ("System", "Int32");
945 int64_type = CoreLookupType ("System", "Int64");
946 uint32_type = CoreLookupType ("System", "UInt32");
947 uint64_type = CoreLookupType ("System", "UInt64");
948 byte_type = CoreLookupType ("System", "Byte");
949 sbyte_type = CoreLookupType ("System", "SByte");
950 short_type = CoreLookupType ("System", "Int16");
951 ushort_type = CoreLookupType ("System", "UInt16");
955 /// The types have to be initialized after the initial
956 /// population of the type has happened (for example, to
957 /// bootstrap the corlib.dll
959 public static void InitCoreTypes ()
961 object_type = CoreLookupType ("System", "Object");
962 value_type = CoreLookupType ("System", "ValueType");
964 InitEnumUnderlyingTypes ();
966 char_type = CoreLookupType ("System", "Char");
967 string_type = CoreLookupType ("System", "String");
968 float_type = CoreLookupType ("System", "Single");
969 double_type = CoreLookupType ("System", "Double");
970 char_ptr_type = GetPointerType (char_type);
971 decimal_type = CoreLookupType ("System", "Decimal");
972 bool_type = CoreLookupType ("System", "Boolean");
973 enum_type = CoreLookupType ("System", "Enum");
975 multicast_delegate_type = CoreLookupType ("System", "MulticastDelegate");
976 delegate_type = CoreLookupType ("System", "Delegate");
978 array_type = CoreLookupType ("System", "Array");
979 void_type = CoreLookupType ("System", "Void");
980 type_type = CoreLookupType ("System", "Type");
982 runtime_field_handle_type = CoreLookupType ("System", "RuntimeFieldHandle");
983 runtime_argument_handle_type = CoreLookupType ("System", "RuntimeArgumentHandle");
984 runtime_helpers_type = CoreLookupType ("System.Runtime.CompilerServices", "RuntimeHelpers");
985 default_member_type = CoreLookupType ("System.Reflection", "DefaultMemberAttribute");
986 runtime_handle_type = CoreLookupType ("System", "RuntimeTypeHandle");
987 asynccallback_type = CoreLookupType ("System", "AsyncCallback");
988 iasyncresult_type = CoreLookupType ("System", "IAsyncResult");
989 ienumerator_type = CoreLookupType ("System.Collections", "IEnumerator");
990 ienumerable_type = CoreLookupType ("System.Collections", "IEnumerable");
991 idisposable_type = CoreLookupType ("System", "IDisposable");
992 icloneable_type = CoreLookupType ("System", "ICloneable");
993 iconvertible_type = CoreLookupType ("System", "IConvertible");
994 monitor_type = CoreLookupType ("System.Threading", "Monitor");
995 intptr_type = CoreLookupType ("System", "IntPtr");
997 attribute_type = CoreLookupType ("System", "Attribute");
998 attribute_usage_type = CoreLookupType ("System", "AttributeUsageAttribute");
999 dllimport_type = CoreLookupType ("System.Runtime.InteropServices", "DllImportAttribute");
1000 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices", "MethodImplAttribute");
1001 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices", "MarshalAsAttribute");
1002 param_array_type = CoreLookupType ("System", "ParamArrayAttribute");
1003 in_attribute_type = CoreLookupType ("System.Runtime.InteropServices", "InAttribute");
1004 out_attribute_type = CoreLookupType ("System.Runtime.InteropServices", "OutAttribute");
1005 typed_reference_type = CoreLookupType ("System", "TypedReference");
1006 arg_iterator_type = CoreLookupType ("System", "ArgIterator");
1007 mbr_type = CoreLookupType ("System", "MarshalByRefObject");
1008 decimal_constant_attribute_type = CoreLookupType ("System.Runtime.CompilerServices", "DecimalConstantAttribute");
1010 unverifiable_code_type= CoreLookupType ("System.Security", "UnverifiableCodeAttribute");
1012 void_ptr_type = GetPointerType (void_type);
1014 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices", "IndexerNameAttribute");
1016 exception_type = CoreLookupType ("System", "Exception");
1017 invalid_operation_exception_type = CoreLookupType ("System", "InvalidOperationException");
1018 not_supported_exception_type = CoreLookupType ("System", "NotSupportedException");
1023 obsolete_attribute_type = CoreLookupType ("System", "ObsoleteAttribute");
1024 conditional_attribute_type = CoreLookupType ("System.Diagnostics", "ConditionalAttribute");
1025 cls_compliant_attribute_type = CoreLookupType ("System", "CLSCompliantAttribute");
1026 struct_layout_attribute_type = CoreLookupType ("System.Runtime.InteropServices", "StructLayoutAttribute");
1027 field_offset_attribute_type = CoreLookupType ("System.Runtime.InteropServices", "FieldOffsetAttribute");
1028 security_attr_type = CoreLookupType ("System.Security.Permissions", "SecurityAttribute");
1029 required_attr_type = CoreLookupType ("System.Runtime.CompilerServices", "RequiredAttributeAttribute");
1030 guid_attr_type = CoreLookupType ("System.Runtime.InteropServices", "GuidAttribute");
1031 assembly_culture_attribute_type = CoreLookupType ("System.Reflection", "AssemblyCultureAttribute");
1037 compiler_generated_attr_type = CoreLookupType ("System.Runtime.CompilerServices", "CompilerGeneratedAttribute");
1038 fixed_buffer_attr_type = CoreLookupType ("System.Runtime.CompilerServices", "FixedBufferAttribute");
1039 default_charset_type = CoreLookupType ("System.Runtime.InteropServices", "DefaultCharSetAttribute");
1042 // When compiling corlib, store the "real" types here.
1044 if (!RootContext.StdLib) {
1045 system_int32_type = typeof (System.Int32);
1046 system_array_type = typeof (System.Array);
1047 system_type_type = typeof (System.Type);
1048 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
1050 Type [] void_arg = { };
1051 system_int_array_get_length = GetMethod (
1052 system_array_type, "get_Length", void_arg);
1053 system_int_array_get_rank = GetMethod (
1054 system_array_type, "get_Rank", void_arg);
1055 system_object_array_clone = GetMethod (
1056 system_array_type, "Clone", void_arg);
1058 Type [] system_int_arg = { system_int32_type };
1059 system_int_array_get_length_int = GetMethod (
1060 system_array_type, "GetLength", system_int_arg);
1061 system_int_array_get_upper_bound_int = GetMethod (
1062 system_array_type, "GetUpperBound", system_int_arg);
1063 system_int_array_get_lower_bound_int = GetMethod (
1064 system_array_type, "GetLowerBound", system_int_arg);
1066 Type [] system_array_int_arg = { system_array_type, system_int32_type };
1067 system_void_array_copyto_array_int = GetMethod (
1068 system_array_type, "CopyTo", system_array_int_arg);
1070 Type [] system_3_type_arg = {
1071 system_type_type, system_type_type, system_type_type };
1072 Type [] system_4_type_arg = {
1073 system_type_type, system_type_type, system_type_type, system_type_type };
1075 MethodInfo set_corlib_type_builders = GetMethod (
1076 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1077 system_4_type_arg, true, false);
1079 if (set_corlib_type_builders != null) {
1080 object[] args = new object [4];
1081 args [0] = object_type;
1082 args [1] = value_type;
1083 args [2] = enum_type;
1084 args [3] = void_type;
1086 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1088 // Compatibility for an older version of the class libs.
1089 set_corlib_type_builders = GetMethod (
1090 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1091 system_3_type_arg, true, true);
1093 if (set_corlib_type_builders == null) {
1094 Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
1098 object[] args = new object [3];
1099 args [0] = object_type;
1100 args [1] = value_type;
1101 args [2] = enum_type;
1103 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1107 system_object_expr.Type = object_type;
1108 system_string_expr.Type = string_type;
1109 system_boolean_expr.Type = bool_type;
1110 system_decimal_expr.Type = decimal_type;
1111 system_single_expr.Type = float_type;
1112 system_double_expr.Type = double_type;
1113 system_sbyte_expr.Type = sbyte_type;
1114 system_byte_expr.Type = byte_type;
1115 system_int16_expr.Type = short_type;
1116 system_uint16_expr.Type = ushort_type;
1117 system_int32_expr.Type = int32_type;
1118 system_uint32_expr.Type = uint32_type;
1119 system_int64_expr.Type = int64_type;
1120 system_uint64_expr.Type = uint64_type;
1121 system_char_expr.Type = char_type;
1122 system_void_expr.Type = void_type;
1123 system_asynccallback_expr.Type = asynccallback_type;
1124 system_iasyncresult_expr.Type = iasyncresult_type;
1125 system_valuetype_expr.Type = value_type;
1128 // These are only used for compare purposes
1130 anonymous_method_type = typeof (AnonymousMethod);
1131 null_type = typeof (NullType);
1135 // The helper methods that are used by the compiler
1137 public static void InitCodeHelpers ()
1140 // Now load the default methods that we use.
1142 Type [] string_string = { string_type, string_type };
1143 string_concat_string_string = GetMethod (
1144 string_type, "Concat", string_string);
1145 Type [] string_string_string = { string_type, string_type, string_type };
1146 string_concat_string_string_string = GetMethod (
1147 string_type, "Concat", string_string_string);
1148 Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
1149 string_concat_string_string_string_string = GetMethod (
1150 string_type, "Concat", string_string_string_string);
1151 Type[] params_string = { GetConstructedType (string_type, "[]") };
1152 string_concat_string_dot_dot_dot = GetMethod (
1153 string_type, "Concat", params_string);
1155 Type [] object_object = { object_type, object_type };
1156 string_concat_object_object = GetMethod (
1157 string_type, "Concat", object_object);
1158 Type [] object_object_object = { object_type, object_type, object_type };
1159 string_concat_object_object_object = GetMethod (
1160 string_type, "Concat", object_object_object);
1161 Type[] params_object = { GetConstructedType (object_type, "[]") };
1162 string_concat_object_dot_dot_dot = GetMethod (
1163 string_type, "Concat", params_object);
1165 Type [] string_ = { string_type };
1166 string_isinterneted_string = GetMethod (
1167 string_type, "IsInterned", string_);
1169 Type [] runtime_type_handle = { runtime_handle_type };
1170 system_type_get_type_from_handle = GetMethod (
1171 type_type, "GetTypeFromHandle", runtime_type_handle);
1173 Type [] delegate_delegate = { delegate_type, delegate_type };
1174 delegate_combine_delegate_delegate = GetMethod (
1175 delegate_type, "Combine", delegate_delegate);
1177 delegate_remove_delegate_delegate = GetMethod (
1178 delegate_type, "Remove", delegate_delegate);
1183 Type [] void_arg = { };
1184 ienumerator_getcurrent = GetProperty (
1185 ienumerator_type, "Current");
1186 bool_movenext_void = GetMethod (
1187 ienumerator_type, "MoveNext", void_arg);
1188 void_reset_void = GetMethod (
1189 ienumerator_type, "Reset", void_arg);
1190 void_dispose_void = GetMethod (
1191 idisposable_type, "Dispose", void_arg);
1192 int_get_offset_to_string_data = GetMethod (
1193 runtime_helpers_type, "get_OffsetToStringData", void_arg);
1194 int_array_get_length = GetMethod (
1195 array_type, "get_Length", void_arg);
1196 int_array_get_rank = GetMethod (
1197 array_type, "get_Rank", void_arg);
1198 ienumerable_getenumerator_void = GetMethod (
1199 ienumerable_type, "GetEnumerator", void_arg);
1204 Type [] int_arg = { int32_type };
1205 int_array_get_length_int = GetMethod (
1206 array_type, "GetLength", int_arg);
1207 int_array_get_upper_bound_int = GetMethod (
1208 array_type, "GetUpperBound", int_arg);
1209 int_array_get_lower_bound_int = GetMethod (
1210 array_type, "GetLowerBound", int_arg);
1213 // System.Array methods
1215 object_array_clone = GetMethod (
1216 array_type, "Clone", void_arg);
1217 Type [] array_int_arg = { array_type, int32_type };
1218 void_array_copyto_array_int = GetMethod (
1219 array_type, "CopyTo", array_int_arg);
1224 Type [] object_arg = { object_type };
1225 void_monitor_enter_object = GetMethod (
1226 monitor_type, "Enter", object_arg);
1227 void_monitor_exit_object = GetMethod (
1228 monitor_type, "Exit", object_arg);
1230 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1232 void_initializearray_array_fieldhandle = GetMethod (
1233 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1238 int_getlength_int = GetMethod (
1239 array_type, "GetLength", int_arg);
1242 // Decimal constructors
1244 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1245 void_decimal_ctor_five_args = GetConstructor (
1246 decimal_type, dec_arg);
1248 void_decimal_ctor_int_arg = GetConstructor (decimal_type, int_arg);
1253 cons_param_array_attribute = GetConstructor (param_array_type, void_arg);
1254 unverifiable_code_ctor = GetConstructor (unverifiable_code_type, void_arg);
1255 default_member_ctor = GetConstructor (default_member_type, string_);
1257 Type[] short_arg = { short_type };
1258 struct_layout_attribute_ctor = GetConstructor (struct_layout_attribute_type, short_arg);
1260 decimal_constant_attribute_ctor = GetConstructor (decimal_constant_attribute_type, new Type []
1261 { byte_type, byte_type, uint32_type, uint32_type, uint32_type } );
1263 field_offset_attribute_ctor = GetConstructor (field_offset_attribute_type, new Type []
1270 compiler_generated_attr = new CustomAttributeBuilder (
1271 GetConstructor (compiler_generated_attr_type, void_arg), new object[0]);
1273 Type[] type_int_arg = { type_type, int32_type };
1274 fixed_buffer_attr_ctor = GetConstructor (fixed_buffer_attr_type, type_int_arg);
1278 object_ctor = GetConstructor (object_type, void_arg);
1282 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1285 /// This is the "old", non-cache based FindMembers() function. We cannot use
1286 /// the cache here because there is no member name argument.
1288 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1289 MemberFilter filter, object criteria)
1291 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1294 // `builder_to_declspace' contains all dynamic types.
1298 Timer.StartTimer (TimerType.FindMembers);
1299 list = decl.FindMembers (mt, bf, filter, criteria);
1300 Timer.StopTimer (TimerType.FindMembers);
1305 // We have to take care of arrays specially, because GetType on
1306 // a TypeBuilder array will return a Type, not a TypeBuilder,
1307 // and we can not call FindMembers on this type.
1309 if (t.IsSubclassOf (TypeManager.array_type))
1310 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1313 // Since FindMembers will not lookup both static and instance
1314 // members, we emulate this behaviour here.
1316 if ((bf & instance_and_static) == instance_and_static){
1317 MemberInfo [] i_members = t.FindMembers (
1318 mt, bf & ~BindingFlags.Static, filter, criteria);
1320 int i_len = i_members.Length;
1322 MemberInfo one = i_members [0];
1325 // If any of these are present, we are done!
1327 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1328 return new MemberList (i_members);
1331 MemberInfo [] s_members = t.FindMembers (
1332 mt, bf & ~BindingFlags.Instance, filter, criteria);
1334 int s_len = s_members.Length;
1335 if (i_len > 0 || s_len > 0)
1336 return new MemberList (i_members, s_members);
1339 return new MemberList (i_members);
1341 return new MemberList (s_members);
1345 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1350 /// This method is only called from within MemberLookup. It tries to use the member
1351 /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
1352 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1353 /// our return value will already contain all inherited members and the caller don't need
1354 /// to check base classes and interfaces anymore.
1356 private static MemberInfo [] MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1357 string name, out bool used_cache)
1362 // We have to take care of arrays specially, because GetType on
1363 // a TypeBuilder array will return a Type, not a TypeBuilder,
1364 // and we can not call FindMembers on this type.
1366 if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
1368 return TypeHandle.ArrayType.MemberCache.FindMembers (
1369 mt, bf, name, FilterWithClosure_delegate, null);
1373 // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
1374 // and we can ask the DeclSpace for the MemberCache.
1376 if (t is TypeBuilder) {
1377 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1378 cache = decl.MemberCache;
1381 // If this DeclSpace has a MemberCache, use it.
1384 if (cache != null) {
1386 return cache.FindMembers (
1387 mt, bf, name, FilterWithClosure_delegate, null);
1390 // If there is no MemberCache, we need to use the "normal" FindMembers.
1391 // Note, this is a VERY uncommon route!
1394 Timer.StartTimer (TimerType.FindMembers);
1395 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
1396 FilterWithClosure_delegate, name);
1397 Timer.StopTimer (TimerType.FindMembers);
1400 return (MemberInfo []) list;
1404 // This call will always succeed. There is exactly one TypeHandle instance per
1405 // type, TypeHandle.GetMemberCache() will, if necessary, create a new one, and return
1406 // the corresponding MemberCache.
1408 cache = TypeHandle.GetMemberCache (t);
1411 return cache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1414 public static bool IsBuiltinType (Type t)
1416 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1417 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1418 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1419 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
1425 public static bool IsBuiltinType (TypeContainer tc)
1427 return IsBuiltinType (tc.TypeBuilder);
1431 // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
1432 // the pieces in the code where we use IsBuiltinType and special case decimal_type.
1434 public static bool IsPrimitiveType (Type t)
1436 return (t == int32_type || t == uint32_type ||
1437 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1438 t == char_type || t == short_type || t == bool_type ||
1439 t == sbyte_type || t == byte_type || t == ushort_type);
1442 public static bool IsDelegateType (Type t)
1444 if (t.IsSubclassOf (TypeManager.delegate_type))
1450 public static bool IsEnumType (Type t)
1452 if (t.IsSubclassOf (TypeManager.enum_type))
1457 public static bool IsBuiltinOrEnum (Type t)
1459 if (IsBuiltinType (t))
1468 static Stack unmanaged_enclosing_types = new Stack (4);
1471 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1473 public static bool IsUnmanagedType (Type t)
1475 // Avoid infloops in the case of: unsafe struct Foo { Foo *x; }
1476 if (unmanaged_enclosing_types.Contains (t))
1479 // builtins that are not unmanaged types
1480 if (t == TypeManager.object_type || t == TypeManager.string_type)
1483 if (IsBuiltinOrEnum (t))
1486 // Someone did the work of checking if the ElementType of t is unmanaged. Let's not repeat it.
1490 // Arrays are disallowed, even if we mark them with [MarshalAs(UnmanagedType.ByValArray, ...)]
1494 if (!IsValueType (t))
1497 unmanaged_enclosing_types.Push (t);
1501 if (t is TypeBuilder){
1502 TypeContainer tc = LookupTypeContainer (t);
1503 if (tc.Fields != null){
1504 foreach (Field f in tc.Fields){
1505 // Avoid using f.FieldBuilder: f.Define () may not yet have been invoked.
1506 if ((f.ModFlags & Modifiers.STATIC) != 0)
1508 if (f.MemberType == null)
1510 if (!IsUnmanagedType (f.MemberType)){
1511 Report.SymbolRelatedToPreviousError (f.Location, CSharpName (t) + "." + f.Name);
1517 FieldInfo [] fields = t.GetFields (BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
1519 foreach (FieldInfo f in fields){
1520 if (!IsUnmanagedType (f.FieldType)){
1521 Report.SymbolRelatedToPreviousError (f);
1527 unmanaged_enclosing_types.Pop ();
1532 public static bool IsValueType (Type t)
1534 if (t.IsSubclassOf (TypeManager.value_type) && (t != TypeManager.enum_type))
1540 public static bool IsInterfaceType (Type t)
1542 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
1546 return tc.Kind == Kind.Interface;
1549 public static bool IsSubclassOf (Type type, Type base_type)
1552 if (type.Equals (base_type))
1555 type = type.BaseType;
1556 } while (type != null);
1561 public static bool IsFamilyAccessible (Type type, Type base_type)
1563 return IsSubclassOf (type, base_type);
1567 // Checks whether `type' is a subclass or nested child of `base_type'.
1569 public static bool IsNestedFamilyAccessible (Type type, Type base_type)
1572 if ((type == base_type) || type.IsSubclassOf (base_type))
1575 // Handle nested types.
1576 type = type.DeclaringType;
1577 } while (type != null);
1583 // Checks whether `type' is a nested child of `parent'.
1585 public static bool IsNestedChildOf (Type type, Type parent)
1590 type = type.DeclaringType;
1591 while (type != null) {
1595 type = type.DeclaringType;
1602 // Do the right thing when returning the element type of an
1603 // array type based on whether we are compiling corlib or not
1605 public static Type GetElementType (Type t)
1607 if (RootContext.StdLib)
1608 return t.GetElementType ();
1610 return TypeToCoreType (t.GetElementType ());
1614 /// This method is not implemented by MS runtime for dynamic types
1616 public static bool HasElementType (Type t)
1618 return t.IsArray || t.IsPointer || t.IsByRef;
1621 static Hashtable builder_to_constant;
1623 public static void RegisterConstant (FieldBuilder fb, Const c)
1625 if (builder_to_constant == null)
1626 builder_to_constant = new PtrHashtable ();
1628 if (builder_to_constant.Contains (fb))
1631 builder_to_constant.Add (fb, c);
1634 public static Const LookupConstant (FieldBuilder fb)
1636 if (builder_to_constant == null)
1639 return (Const) builder_to_constant [fb];
1643 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1647 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1648 /// for anything which is dynamic, and we need this in a number of places,
1649 /// we register this information here, and use it afterwards.
1651 static public void RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1656 method_arguments.Add (mb, args);
1657 method_params.Add (mb, ip);
1660 static public ParameterData GetParameterData (MethodBase mb)
1662 object pd = method_params [mb];
1664 if (mb is MethodBuilder || mb is ConstructorBuilder)
1665 throw new InternalErrorException ("Argument for Method not registered" + mb);
1667 method_params [mb] = pd = new ReflectionParameters (mb);
1670 return (ParameterData) pd;
1673 static public void RegisterOverride (MethodBase override_method, MethodBase base_method)
1675 if (method_overrides.Contains (override_method)) {
1676 if (method_overrides [override_method] != base_method)
1677 throw new InternalErrorException ("Override mismatch: " + override_method);
1680 method_overrides [override_method] = base_method;
1683 static public bool IsOverride (MethodBase m)
1685 return m.IsVirtual &&
1686 (m.Attributes & MethodAttributes.NewSlot) == 0 &&
1687 (m is MethodBuilder || method_overrides.Contains (m));
1691 /// Returns the argument types for a method based on its methodbase
1693 /// For dynamic methods, we use the compiler provided types, for
1694 /// methods from existing assemblies we load them from GetParameters,
1695 /// and insert them into the cache
1697 static public Type [] GetArgumentTypes (MethodBase mb)
1699 object t = method_arguments [mb];
1703 ParameterInfo [] pi = mb.GetParameters ();
1710 types = new Type [c];
1711 for (int i = 0; i < c; i++)
1712 types [i] = pi [i].ParameterType;
1714 method_arguments.Add (mb, types);
1719 /// Returns the argument types for an indexer based on its PropertyInfo
1721 /// For dynamic indexers, we use the compiler provided types, for
1722 /// indexers from existing assemblies we load them from GetParameters,
1723 /// and insert them into the cache
1725 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1727 if (indexer_arguments.Contains (indexer))
1728 return (Type []) indexer_arguments [indexer];
1729 else if (indexer is PropertyBuilder)
1730 // If we're a PropertyBuilder and not in the
1731 // `indexer_arguments' hash, then we're a property and
1735 ParameterInfo [] pi = indexer.GetIndexParameters ();
1736 // Property, not an indexer.
1740 Type [] types = new Type [c];
1742 for (int i = 0; i < c; i++)
1743 types [i] = pi [i].ParameterType;
1745 indexer_arguments.Add (indexer, types);
1751 // This is a workaround the fact that GetValue is not
1752 // supported for dynamic types
1754 static public bool RegisterFieldValue (FieldBuilder fb, object value)
1756 if (fields.Contains (fb))
1759 fields.Add (fb, value);
1764 static public object GetValue (FieldBuilder fb)
1769 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1771 if (fieldbuilders_to_fields.Contains (fb))
1774 fieldbuilders_to_fields.Add (fb, f);
1779 // The return value can be null; This will be the case for
1780 // auxiliary FieldBuilders created by the compiler that have no
1781 // real field being declared on the source code
1783 static public FieldBase GetField (FieldInfo fb)
1785 return (FieldBase) fieldbuilders_to_fields [fb];
1788 static Hashtable events;
1790 static public void RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1793 events = new Hashtable ();
1795 if (!events.Contains (eb)) {
1796 events.Add (eb, new Pair (add, remove));
1800 static public MethodInfo GetAddMethod (EventInfo ei)
1802 if (ei is MyEventBuilder) {
1803 Pair pair = (Pair) events [ei];
1805 return (MethodInfo) pair.First;
1807 return ei.GetAddMethod (true);
1810 static public MethodInfo GetRemoveMethod (EventInfo ei)
1812 if (ei is MyEventBuilder) {
1813 Pair pair = (Pair) events [ei];
1815 return (MethodInfo) pair.Second;
1817 return ei.GetRemoveMethod (true);
1820 static Hashtable priv_fields_events;
1822 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1824 if (priv_fields_events == null)
1825 priv_fields_events = new Hashtable ();
1827 if (priv_fields_events.Contains (einfo))
1830 priv_fields_events.Add (einfo, builder);
1835 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1837 if (priv_fields_events == null)
1840 return (MemberInfo) priv_fields_events [ei];
1843 static Hashtable properties;
1845 static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase set)
1847 if (properties == null)
1848 properties = new Hashtable ();
1850 if (properties.Contains (pb))
1853 properties.Add (pb, new Pair (get, set));
1858 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get,
1859 MethodBase set, Type[] args)
1861 if (!RegisterProperty (pb, get,set))
1864 indexer_arguments.Add (pb, args);
1869 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen)
1871 Hashtable hash = new Hashtable ();
1872 return CheckStructCycles (tc, seen, hash);
1875 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen,
1878 if ((tc.Kind != Kind.Struct) || IsBuiltinType (tc))
1882 // `seen' contains all types we've already visited.
1884 if (seen.Contains (tc))
1886 seen.Add (tc, null);
1888 if (tc.Fields == null)
1891 foreach (FieldMember field in tc.Fields) {
1892 if (field.FieldBuilder == null || field.FieldBuilder.IsStatic)
1895 Type ftype = field.FieldBuilder.FieldType;
1896 TypeContainer ftc = LookupTypeContainer (ftype);
1900 if (hash.Contains (ftc)) {
1901 Report.Error (523, tc.Location,
1902 "Struct member `{0}.{1}' of type `{2}' " +
1903 "causes a cycle in the struct layout",
1904 tc.Name, field.Name, ftc.Name);
1909 // `hash' contains all types in the current path.
1911 hash.Add (tc, null);
1913 bool ok = CheckStructCycles (ftc, seen, hash);
1920 if (!seen.Contains (ftc))
1921 seen.Add (ftc, null);
1928 /// Given an array of interface types, expand and eliminate repeated ocurrences
1929 /// of an interface.
1933 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
1936 public static Type[] ExpandInterfaces (EmitContext ec, TypeExpr [] base_interfaces)
1938 ArrayList new_ifaces = new ArrayList ();
1940 foreach (TypeExpr iface in base_interfaces){
1941 Type itype = iface.ResolveType (ec);
1945 if (!new_ifaces.Contains (itype))
1946 new_ifaces.Add (itype);
1948 Type [] implementing = itype.GetInterfaces ();
1950 foreach (Type imp in implementing){
1951 if (!new_ifaces.Contains (imp))
1952 new_ifaces.Add (imp);
1955 Type [] ret = new Type [new_ifaces.Count];
1956 new_ifaces.CopyTo (ret, 0);
1960 static PtrHashtable iface_cache = new PtrHashtable ();
1963 /// This function returns the interfaces in the type `t'. Works with
1964 /// both types and TypeBuilders.
1966 public static Type [] GetInterfaces (Type t)
1969 Type [] cached = iface_cache [t] as Type [];
1974 // The reason for catching the Array case is that Reflection.Emit
1975 // will not return a TypeBuilder for Array types of TypeBuilder types,
1976 // but will still throw an exception if we try to call GetInterfaces
1979 // Since the array interfaces are always constant, we return those for
1984 t = TypeManager.array_type;
1986 if (t is TypeBuilder){
1987 Type [] base_ifaces;
1989 if (t.BaseType == null)
1990 base_ifaces = NoTypes;
1992 base_ifaces = GetInterfaces (t.BaseType);
1993 Type [] type_ifaces = (Type []) builder_to_ifaces [t];
1994 if (type_ifaces == null)
1995 type_ifaces = NoTypes;
1997 int base_count = base_ifaces.Length;
1998 Type [] result = new Type [base_count + type_ifaces.Length];
1999 base_ifaces.CopyTo (result, 0);
2000 type_ifaces.CopyTo (result, base_count);
2002 iface_cache [t] = result;
2005 Type[] ifaces = t.GetInterfaces ();
2006 iface_cache [t] = ifaces;
2012 // gets the interfaces that are declared explicitly on t
2014 public static Type [] GetExplicitInterfaces (TypeBuilder t)
2016 return (Type []) builder_to_ifaces [t];
2020 /// The following is used to check if a given type implements an interface.
2021 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
2023 public static bool ImplementsInterface (Type t, Type iface)
2028 // FIXME OPTIMIZATION:
2029 // as soon as we hit a non-TypeBuiler in the interface
2030 // chain, we could return, as the `Type.GetInterfaces'
2031 // will return all the interfaces implement by the type
2035 interfaces = GetInterfaces (t);
2037 if (interfaces != null){
2038 foreach (Type i in interfaces){
2045 } while (t != null);
2050 static NumberFormatInfo nf_provider = CultureInfo.CurrentCulture.NumberFormat;
2052 // This is a custom version of Convert.ChangeType() which works
2053 // with the TypeBuilder defined types when compiling corlib.
2054 public static object ChangeType (object value, Type conversionType, out bool error)
2056 IConvertible convert_value = value as IConvertible;
2058 if (convert_value == null){
2064 // We must use Type.Equals() here since `conversionType' is
2065 // the TypeBuilder created version of a system type and not
2066 // the system type itself. You cannot use Type.GetTypeCode()
2067 // on such a type - it'd always return TypeCode.Object.
2071 if (conversionType.Equals (typeof (Boolean)))
2072 return (object)(convert_value.ToBoolean (nf_provider));
2073 else if (conversionType.Equals (typeof (Byte)))
2074 return (object)(convert_value.ToByte (nf_provider));
2075 else if (conversionType.Equals (typeof (Char)))
2076 return (object)(convert_value.ToChar (nf_provider));
2077 else if (conversionType.Equals (typeof (DateTime)))
2078 return (object)(convert_value.ToDateTime (nf_provider));
2079 else if (conversionType.Equals (TypeManager.decimal_type)) // typeof (Decimal)))
2080 return (object)(convert_value.ToDecimal (nf_provider));
2081 else if (conversionType.Equals (typeof (Double)))
2082 return (object)(convert_value.ToDouble (nf_provider));
2083 else if (conversionType.Equals (typeof (Int16)))
2084 return (object)(convert_value.ToInt16 (nf_provider));
2085 else if (conversionType.Equals (typeof (Int32)))
2086 return (object)(convert_value.ToInt32 (nf_provider));
2087 else if (conversionType.Equals (typeof (Int64)))
2088 return (object)(convert_value.ToInt64 (nf_provider));
2089 else if (conversionType.Equals (typeof (SByte)))
2090 return (object)(convert_value.ToSByte (nf_provider));
2091 else if (conversionType.Equals (typeof (Single)))
2092 return (object)(convert_value.ToSingle (nf_provider));
2093 else if (conversionType.Equals (typeof (String)))
2094 return (object)(convert_value.ToString (nf_provider));
2095 else if (conversionType.Equals (typeof (UInt16)))
2096 return (object)(convert_value.ToUInt16 (nf_provider));
2097 else if (conversionType.Equals (typeof (UInt32)))
2098 return (object)(convert_value.ToUInt32 (nf_provider));
2099 else if (conversionType.Equals (typeof (UInt64)))
2100 return (object)(convert_value.ToUInt64 (nf_provider));
2101 else if (conversionType.Equals (typeof (Object)))
2102 return (object)(value);
2112 // This is needed, because enumerations from assemblies
2113 // do not report their underlyingtype, but they report
2116 public static Type EnumToUnderlying (Type t)
2118 if (t == TypeManager.enum_type)
2121 t = t.UnderlyingSystemType;
2122 if (!TypeManager.IsEnumType (t))
2125 if (t is TypeBuilder) {
2126 // slow path needed to compile corlib
2127 if (t == TypeManager.bool_type ||
2128 t == TypeManager.byte_type ||
2129 t == TypeManager.sbyte_type ||
2130 t == TypeManager.char_type ||
2131 t == TypeManager.short_type ||
2132 t == TypeManager.ushort_type ||
2133 t == TypeManager.int32_type ||
2134 t == TypeManager.uint32_type ||
2135 t == TypeManager.int64_type ||
2136 t == TypeManager.uint64_type)
2139 TypeCode tc = Type.GetTypeCode (t);
2142 case TypeCode.Boolean:
2143 return TypeManager.bool_type;
2145 return TypeManager.byte_type;
2146 case TypeCode.SByte:
2147 return TypeManager.sbyte_type;
2149 return TypeManager.char_type;
2150 case TypeCode.Int16:
2151 return TypeManager.short_type;
2152 case TypeCode.UInt16:
2153 return TypeManager.ushort_type;
2154 case TypeCode.Int32:
2155 return TypeManager.int32_type;
2156 case TypeCode.UInt32:
2157 return TypeManager.uint32_type;
2158 case TypeCode.Int64:
2159 return TypeManager.int64_type;
2160 case TypeCode.UInt64:
2161 return TypeManager.uint64_type;
2163 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
2167 // When compiling corlib and called with one of the core types, return
2168 // the corresponding typebuilder for that type.
2170 public static Type TypeToCoreType (Type t)
2172 if (RootContext.StdLib || (t is TypeBuilder))
2175 TypeCode tc = Type.GetTypeCode (t);
2178 case TypeCode.Boolean:
2179 return TypeManager.bool_type;
2181 return TypeManager.byte_type;
2182 case TypeCode.SByte:
2183 return TypeManager.sbyte_type;
2185 return TypeManager.char_type;
2186 case TypeCode.Int16:
2187 return TypeManager.short_type;
2188 case TypeCode.UInt16:
2189 return TypeManager.ushort_type;
2190 case TypeCode.Int32:
2191 return TypeManager.int32_type;
2192 case TypeCode.UInt32:
2193 return TypeManager.uint32_type;
2194 case TypeCode.Int64:
2195 return TypeManager.int64_type;
2196 case TypeCode.UInt64:
2197 return TypeManager.uint64_type;
2198 case TypeCode.Single:
2199 return TypeManager.float_type;
2200 case TypeCode.Double:
2201 return TypeManager.double_type;
2202 case TypeCode.String:
2203 return TypeManager.string_type;
2204 case TypeCode.Decimal:
2205 return TypeManager.decimal_type;
2207 if (t == typeof (void))
2208 return TypeManager.void_type;
2209 if (t == typeof (object))
2210 return TypeManager.object_type;
2211 if (t == typeof (System.Type))
2212 return TypeManager.type_type;
2213 if (t == typeof (System.IntPtr))
2214 return TypeManager.intptr_type;
2220 /// Utility function that can be used to probe whether a type
2221 /// is managed or not.
2223 public static bool VerifyUnManaged (Type t, Location loc)
2225 if (IsUnmanagedType (t))
2228 Report.Error (208, loc, "Cannot take the address of, get the size of, or declare a pointer to a managed type `{0}'",
2235 /// Returns the name of the indexer in a given type.
2238 /// The default is not always `Item'. The user can change this behaviour by
2239 /// using the IndexerNameAttribute in the container.
2240 /// For example, the String class indexer is named `Chars' not `Item'
2242 public static string IndexerPropertyName (Type t)
2244 if (t is TypeBuilder) {
2245 TypeContainer tc = t.IsInterface ? LookupInterface (t) : LookupTypeContainer (t);
2246 return tc == null ? TypeContainer.DefaultIndexerName : tc.IndexerName;
2249 System.Attribute attr = System.Attribute.GetCustomAttribute (
2250 t, TypeManager.default_member_type);
2252 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
2253 return dma.MemberName;
2256 return TypeContainer.DefaultIndexerName;
2259 static MethodInfo declare_local_method = null;
2261 public static LocalBuilder DeclareLocalPinned (ILGenerator ig, Type t)
2263 if (declare_local_method == null){
2264 declare_local_method = typeof (ILGenerator).GetMethod (
2266 BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
2268 new Type [] { typeof (Type), typeof (bool)},
2270 if (declare_local_method == null){
2271 Report.Warning (-30, new Location (-1),
2272 "This version of the runtime does not support making pinned local variables. " +
2273 "This code may cause errors on a runtime with a moving GC");
2274 return ig.DeclareLocal (t);
2277 return (LocalBuilder) declare_local_method.Invoke (ig, new object [] { t, true });
2281 // Returns whether the array of memberinfos contains the given method
2283 public static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
2285 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
2287 foreach (MethodBase method in array) {
2288 if (method.Name != new_method.Name)
2291 if (method is MethodInfo && new_method is MethodInfo)
2292 if (((MethodInfo) method).ReturnType != ((MethodInfo) new_method).ReturnType)
2296 Type [] old_args = TypeManager.GetArgumentTypes (method);
2297 int old_count = old_args.Length;
2300 if (new_args.Length != old_count)
2303 for (i = 0; i < old_count; i++){
2304 if (old_args [i] != new_args [i])
2317 // We copy methods from `new_members' into `target_list' if the signature
2318 // for the method from in the new list does not exist in the target_list
2320 // The name is assumed to be the same.
2322 public static ArrayList CopyNewMethods (ArrayList target_list, IList new_members)
2324 if (target_list == null){
2325 target_list = new ArrayList ();
2327 foreach (MemberInfo mi in new_members){
2328 if (mi is MethodBase)
2329 target_list.Add (mi);
2334 MemberInfo [] target_array = new MemberInfo [target_list.Count];
2335 target_list.CopyTo (target_array, 0);
2337 foreach (MemberInfo mi in new_members){
2338 MethodBase new_method = (MethodBase) mi;
2340 if (!ArrayContainsMethod (target_array, new_method))
2341 target_list.Add (new_method);
2347 #region MemberLookup implementation
2350 // Whether we allow private members in the result (since FindMembers
2351 // uses NonPublic for both protected and private), we need to distinguish.
2354 static internal bool FilterNone (MemberInfo m, object filter_criteria)
2359 internal class Closure {
2360 internal bool private_ok;
2362 // Who is invoking us and which type is being queried currently.
2363 internal Type invocation_type;
2364 internal Type qualifier_type;
2366 // The assembly that defines the type is that is calling us
2367 internal Assembly invocation_assembly;
2368 internal IList almost_match;
2370 private bool CheckValidFamilyAccess (bool is_static, MemberInfo m)
2372 if (invocation_type == null)
2375 if (is_static && qualifier_type == null)
2376 // It resolved from a simple name, so it should be visible.
2379 // A nested class has access to all the protected members visible to its parent.
2380 if (qualifier_type != null && TypeManager.IsNestedChildOf (invocation_type, qualifier_type))
2383 if (invocation_type == m.DeclaringType || invocation_type.IsSubclassOf (m.DeclaringType)) {
2384 // Although a derived class can access protected members of its base class
2385 // it cannot do so through an instance of the base class (CS1540).
2386 // => Ancestry should be: declaring_type ->* invocation_type ->* qualified_type
2388 qualifier_type == null ||
2389 qualifier_type == invocation_type ||
2390 qualifier_type.IsSubclassOf (invocation_type))
2394 if (almost_match != null)
2395 almost_match.Add (m);
2401 // This filter filters by name + whether it is ok to include private
2402 // members in the search
2404 internal bool Filter (MemberInfo m, object filter_criteria)
2407 // Hack: we know that the filter criteria will always be in the `closure'
2411 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2414 if (((qualifier_type == null) || (qualifier_type == invocation_type)) &&
2415 (m.DeclaringType == invocation_type))
2419 // Ugly: we need to find out the type of `m', and depending
2420 // on this, tell whether we accept or not
2422 if (m is MethodBase){
2423 MethodBase mb = (MethodBase) m;
2424 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2426 if (ma == MethodAttributes.Private)
2427 return private_ok || invocation_type == m.DeclaringType ||
2428 IsNestedChildOf (invocation_type, m.DeclaringType);
2430 if (invocation_assembly == mb.DeclaringType.Assembly) {
2431 if (ma == MethodAttributes.Assembly || ma == MethodAttributes.FamORAssem)
2434 if (ma == MethodAttributes.Assembly || ma == MethodAttributes.FamANDAssem)
2438 if (ma == MethodAttributes.Family ||
2439 ma == MethodAttributes.FamANDAssem ||
2440 ma == MethodAttributes.FamORAssem)
2441 return CheckValidFamilyAccess (mb.IsStatic, m);
2447 if (m is FieldInfo){
2448 FieldInfo fi = (FieldInfo) m;
2449 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2451 if (fa == FieldAttributes.Private)
2452 return private_ok || (invocation_type == m.DeclaringType) ||
2453 IsNestedChildOf (invocation_type, m.DeclaringType);
2455 if (invocation_assembly == fi.DeclaringType.Assembly) {
2456 if (fa == FieldAttributes.Assembly || fa == FieldAttributes.FamORAssem)
2459 if (fa == FieldAttributes.Assembly || fa == FieldAttributes.FamANDAssem)
2463 if (fa == FieldAttributes.Family ||
2464 fa == FieldAttributes.FamANDAssem ||
2465 fa == FieldAttributes.FamORAssem)
2466 return CheckValidFamilyAccess (fi.IsStatic, m);
2473 // EventInfos and PropertyInfos, return true because they lack permission
2474 // information, so we need to check later on the methods.
2480 static Closure closure = new Closure ();
2481 static MemberFilter FilterWithClosure_delegate = new MemberFilter (closure.Filter);
2484 // Looks up a member called `name' in the `queried_type'. This lookup
2485 // is done by code that is contained in the definition for `invocation_type'
2486 // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
2488 // `invocation_type' is used to check whether we're allowed to access the requested
2489 // member wrt its protection level.
2491 // When called from MemberAccess, `qualifier_type' is the type which is used to access
2492 // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
2493 // is B and qualifier_type is A). This is used to do the CS1540 check.
2495 // When resolving a SimpleName, `qualifier_type' is null.
2497 // The `qualifier_type' is used for the CS1540 check; it's normally either null or
2498 // the same than `queried_type' - except when we're being called from BaseAccess;
2499 // in this case, `invocation_type' is the current type and `queried_type' the base
2500 // type, so this'd normally trigger a CS1540.
2502 // The binding flags are `bf' and the kind of members being looked up are `mt'
2504 // The return value always includes private members which code in `invocation_type'
2505 // is allowed to access (using the specified `qualifier_type' if given); only use
2506 // BindingFlags.NonPublic to bypass the permission check.
2508 // The 'almost_match' argument is used for reporting error CS1540.
2510 // Returns an array of a single element for everything but Methods/Constructors
2511 // that might return multiple matches.
2513 public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_type,
2514 Type queried_type, MemberTypes mt,
2515 BindingFlags original_bf, string name, IList almost_match)
2517 Timer.StartTimer (TimerType.MemberLookup);
2519 MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_type,
2520 queried_type, mt, original_bf, name, almost_match);
2522 Timer.StopTimer (TimerType.MemberLookup);
2527 static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_type,
2528 Type queried_type, MemberTypes mt,
2529 BindingFlags original_bf, string name, IList almost_match)
2531 BindingFlags bf = original_bf;
2533 ArrayList method_list = null;
2534 Type current_type = queried_type;
2535 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2536 bool skip_iface_check = true, used_cache = false;
2537 bool always_ok_flag = invocation_type != null && IsNestedChildOf (invocation_type, queried_type);
2539 closure.invocation_type = invocation_type;
2540 closure.invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2541 closure.qualifier_type = qualifier_type;
2542 closure.almost_match = almost_match;
2544 // This is from the first time we find a method
2545 // in most cases, we do not actually find a method in the base class
2546 // so we can just ignore it, and save the arraylist allocation
2547 MemberInfo [] first_members_list = null;
2548 bool use_first_members_list = false;
2554 // `NonPublic' is lame, because it includes both protected and
2555 // private methods, so we need to control this behavior by
2556 // explicitly tracking if a private method is ok or not.
2558 // The possible cases are:
2559 // public, private and protected (internal does not come into the
2562 if ((invocation_type != null) &&
2563 ((invocation_type == current_type) ||
2564 IsNestedChildOf (invocation_type, current_type)) ||
2566 bf = original_bf | BindingFlags.NonPublic;
2570 closure.private_ok = (original_bf & BindingFlags.NonPublic) != 0;
2572 Timer.StopTimer (TimerType.MemberLookup);
2574 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2576 Timer.StartTimer (TimerType.MemberLookup);
2579 // When queried for an interface type, the cache will automatically check all
2580 // inherited members, so we don't need to do this here. However, this only
2581 // works if we already used the cache in the first iteration of this loop.
2583 // If we used the cache in any further iteration, we can still terminate the
2584 // loop since the cache always looks in all base classes.
2590 skip_iface_check = false;
2592 if (current_type == TypeManager.object_type)
2595 current_type = current_type.BaseType;
2598 // This happens with interfaces, they have a null
2599 // basetype. Look members up in the Object class.
2601 if (current_type == null) {
2602 current_type = TypeManager.object_type;
2607 if (list.Length == 0)
2611 // Events and types are returned by both `static' and `instance'
2612 // searches, which means that our above FindMembers will
2613 // return two copies of the same.
2615 if (list.Length == 1 && !(list [0] is MethodBase)){
2620 // Multiple properties: we query those just to find out the indexer
2623 if (list [0] is PropertyInfo)
2627 // We found an event: the cache lookup returns both the event and
2628 // its private field.
2630 if (list [0] is EventInfo) {
2631 if ((list.Length == 2) && (list [1] is FieldInfo))
2632 return new MemberInfo [] { list [0] };
2639 // We found methods, turn the search into "method scan"
2643 if (first_members_list != null) {
2644 if (use_first_members_list) {
2645 method_list = CopyNewMethods (method_list, first_members_list);
2646 use_first_members_list = false;
2649 method_list = CopyNewMethods (method_list, list);
2651 first_members_list = list;
2652 use_first_members_list = true;
2653 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2655 } while (searching);
2657 if (use_first_members_list) {
2658 foreach (MemberInfo mi in first_members_list) {
2659 if (! (mi is MethodBase)) {
2660 method_list = CopyNewMethods (method_list, first_members_list);
2661 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2664 return (MemberInfo []) first_members_list;
2667 if (method_list != null && method_list.Count > 0)
2668 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2671 // This happens if we already used the cache in the first iteration, in this case
2672 // the cache already looked in all interfaces.
2674 if (skip_iface_check)
2678 // Interfaces do not list members they inherit, so we have to
2681 if (!queried_type.IsInterface)
2684 if (queried_type.IsArray)
2685 queried_type = TypeManager.array_type;
2687 Type [] ifaces = GetInterfaces (queried_type);
2691 foreach (Type itype in ifaces){
2694 x = MemberLookup (null, null, itype, mt, bf, name, null);
2702 // Tests whether external method is really special
2703 public static bool IsSpecialMethod (MethodBase mb)
2705 string name = mb.Name;
2706 if (name.StartsWith ("get_") || name.StartsWith ("set_"))
2707 return mb.DeclaringType.GetProperty (name.Substring (4)) != null;
2709 if (name.StartsWith ("add_"))
2710 return mb.DeclaringType.GetEvent (name.Substring (4)) != null;
2712 if (name.StartsWith ("remove_"))
2713 return mb.DeclaringType.GetEvent (name.Substring (7)) != null;
2715 if (name.StartsWith ("op_")){
2716 foreach (string oname in Unary.oper_names) {
2721 foreach (string oname in Binary.oper_names) {
2734 /// There is exactly one instance of this class per type.
2736 public sealed class TypeHandle : IMemberContainer {
2737 public readonly IMemberContainer BaseType;
2739 readonly int id = ++next_id;
2740 static int next_id = 0;
2742 static TypeHandle ()
2748 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2749 /// a TypeHandle yet, a new instance of it is created. This static method
2750 /// ensures that we'll only have one TypeHandle instance per type.
2752 private static TypeHandle GetTypeHandle (Type t)
2754 TypeHandle handle = (TypeHandle) type_hash [t];
2758 handle = new TypeHandle (t);
2759 type_hash.Add (t, handle);
2763 public static MemberCache GetMemberCache (Type t)
2765 return GetTypeHandle (t).MemberCache;
2768 public static void CleanUp ()
2773 public static void Reset ()
2775 type_hash = new PtrHashtable ();
2779 /// Returns the TypeHandle for TypeManager.object_type.
2781 public static IMemberContainer ObjectType {
2783 if (object_type != null)
2786 object_type = GetTypeHandle (TypeManager.object_type);
2793 /// Returns the TypeHandle for TypeManager.array_type.
2795 public static IMemberContainer ArrayType {
2797 if (array_type != null)
2800 array_type = GetTypeHandle (TypeManager.array_type);
2806 private static PtrHashtable type_hash;
2808 private static TypeHandle object_type = null;
2809 private static TypeHandle array_type = null;
2812 private bool is_interface;
2813 private MemberCache member_cache;
2814 private MemberCache base_cache;
2816 private TypeHandle (Type type)
2819 if (type.BaseType != null) {
2820 base_cache = TypeManager.LookupMemberCache (type.BaseType);
2821 BaseType = base_cache.Container;
2822 } else if (type.IsInterface)
2823 base_cache = TypeManager.LookupBaseInterfacesCache (type);
2824 this.is_interface = type.IsInterface;
2825 this.member_cache = new MemberCache (this);
2828 // IMemberContainer methods
2830 public string Name {
2832 return type.FullName;
2842 public MemberCache BaseCache {
2848 public bool IsInterface {
2850 return is_interface;
2854 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
2856 MemberInfo [] members;
2857 if (mt == MemberTypes.Event)
2858 members = type.GetEvents (bf | BindingFlags.DeclaredOnly);
2860 members = type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
2862 Array.Reverse (members);
2864 return new MemberList (members);
2867 // IMemberFinder methods
2869 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
2870 MemberFilter filter, object criteria)
2872 return new MemberList (member_cache.FindMembers (mt, bf, name, filter, criteria));
2875 public MemberCache MemberCache {
2877 return member_cache;
2881 public override string ToString ()
2883 if (BaseType != null)
2884 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
2886 return "TypeHandle (" + id + "," + Name + ")";