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 enumeration_type;
59 static public Type array_type;
60 static public Type runtime_handle_type;
61 static public Type icloneable_type;
62 static public Type type_type;
63 static public Type ienumerator_type;
64 static public Type ienumerable_type;
65 static public Type idisposable_type;
66 static public Type iconvertible_type;
67 static public Type default_member_type;
68 static public Type iasyncresult_type;
69 static public Type asynccallback_type;
70 static public Type intptr_type;
71 static public Type monitor_type;
72 static public Type runtime_field_handle_type;
73 static public Type attribute_type;
74 static public Type attribute_usage_type;
75 static public Type dllimport_type;
76 static public Type unverifiable_code_type;
77 static public Type methodimpl_attr_type;
78 static public Type marshal_as_attr_type;
79 static public Type param_array_type;
80 static public Type guid_attr_type;
81 static public Type void_ptr_type;
82 static public Type indexer_name_type;
83 static public Type exception_type;
84 static public Type invalid_operation_exception_type;
85 static public Type obsolete_attribute_type;
86 static public object conditional_attribute_type;
87 static public Type in_attribute_type;
88 static public Type cls_compliant_attribute_type;
89 static public Type typed_reference_type;
90 static public Type arg_iterator_type;
91 static public Type mbr_type;
92 static public Type struct_layout_attribute_type;
93 static public Type field_offset_attribute_type;
96 // An empty array of types
98 static public Type [] NoTypes;
99 static public TypeExpr [] NoTypeExprs;
103 // Expressions representing the internal types. Used during declaration
106 static public TypeExpr system_object_expr, system_string_expr;
107 static public TypeExpr system_boolean_expr, system_decimal_expr;
108 static public TypeExpr system_single_expr, system_double_expr;
109 static public TypeExpr system_sbyte_expr, system_byte_expr;
110 static public TypeExpr system_int16_expr, system_uint16_expr;
111 static public TypeExpr system_int32_expr, system_uint32_expr;
112 static public TypeExpr system_int64_expr, system_uint64_expr;
113 static public TypeExpr system_char_expr, system_void_expr;
114 static public TypeExpr system_asynccallback_expr;
115 static public TypeExpr system_iasyncresult_expr;
116 static public TypeExpr system_valuetype_expr;
119 // This is only used when compiling corlib
121 static public Type system_int32_type;
122 static public Type system_array_type;
123 static public Type system_type_type;
124 static public Type system_assemblybuilder_type;
125 static public MethodInfo system_int_array_get_length;
126 static public MethodInfo system_int_array_get_rank;
127 static public MethodInfo system_object_array_clone;
128 static public MethodInfo system_int_array_get_length_int;
129 static public MethodInfo system_int_array_get_lower_bound_int;
130 static public MethodInfo system_int_array_get_upper_bound_int;
131 static public MethodInfo system_void_array_copyto_array_int;
135 // Internal, not really used outside
137 static Type runtime_helpers_type;
140 // These methods are called by code generated by the compiler
142 static public MethodInfo string_concat_string_string;
143 static public MethodInfo string_concat_string_string_string;
144 static public MethodInfo string_concat_string_string_string_string;
145 static public MethodInfo string_concat_string_dot_dot_dot;
146 static public MethodInfo string_concat_object_object;
147 static public MethodInfo string_concat_object_object_object;
148 static public MethodInfo string_concat_object_dot_dot_dot;
149 static public MethodInfo string_isinterneted_string;
150 static public MethodInfo system_type_get_type_from_handle;
151 static public MethodInfo object_getcurrent_void;
152 static public MethodInfo bool_movenext_void;
153 static public MethodInfo ienumerable_getenumerator_void;
154 static public MethodInfo void_reset_void;
155 static public MethodInfo void_dispose_void;
156 static public MethodInfo void_monitor_enter_object;
157 static public MethodInfo void_monitor_exit_object;
158 static public MethodInfo void_initializearray_array_fieldhandle;
159 static public MethodInfo int_getlength_int;
160 static public MethodInfo delegate_combine_delegate_delegate;
161 static public MethodInfo delegate_remove_delegate_delegate;
162 static public MethodInfo int_get_offset_to_string_data;
163 static public MethodInfo int_array_get_length;
164 static public MethodInfo int_array_get_rank;
165 static public MethodInfo object_array_clone;
166 static public MethodInfo int_array_get_length_int;
167 static public MethodInfo int_array_get_lower_bound_int;
168 static public MethodInfo int_array_get_upper_bound_int;
169 static public MethodInfo void_array_copyto_array_int;
172 // The attribute constructors.
174 static public ConstructorInfo object_ctor;
175 static public ConstructorInfo cons_param_array_attribute;
176 static public ConstructorInfo void_decimal_ctor_five_args;
177 static public ConstructorInfo unverifiable_code_ctor;
178 static public ConstructorInfo invalid_operation_ctor;
181 // Holds the Array of Assemblies that have been loaded
182 // (either because it is the default or the user used the
183 // -r command line option)
185 static Assembly [] assemblies;
188 // Keeps a list of modules. We used this to do lookups
189 // on the module using GetType -- needed for arrays
191 static Module [] modules;
194 // This is the type_cache from the assemblies to avoid
195 // hitting System.Reflection on every lookup.
197 static Hashtable types;
200 // This is used to hotld the corresponding TypeContainer objects
201 // since we need this in FindMembers
203 static Hashtable typecontainers;
206 // Keeps track of those types that are defined by the
209 static ArrayList user_types;
211 static PtrHashtable builder_to_declspace;
214 // Tracks the interfaces implemented by typebuilders. We only
215 // enter those who do implement or or more interfaces
217 static PtrHashtable builder_to_ifaces;
220 // Maps MethodBase.RuntimeTypeHandle to a Type array that contains
221 // the arguments to the method
223 static Hashtable method_arguments;
226 // Maps PropertyBuilder to a Type array that contains
227 // the arguments to the indexer
229 static Hashtable indexer_arguments;
232 // Maybe `method_arguments' should be replaced and only
233 // method_internal_params should be kept?
235 static Hashtable method_internal_params;
238 // Keeps track of methods
241 static Hashtable builder_to_method;
244 // Contains all public types from referenced assemblies.
245 // This member is used only if CLS Compliance verification is required.
247 public static Hashtable all_imported_types;
254 public static void CleanUp ()
256 // Lets get everything clean so that we can collect before generating code
260 typecontainers = null;
262 builder_to_declspace = null;
263 builder_to_ifaces = null;
264 method_arguments = null;
265 indexer_arguments = null;
266 method_internal_params = null;
267 builder_to_method = null;
271 negative_hits = null;
272 builder_to_constant = null;
273 fieldbuilders_to_fields = null;
275 priv_fields_events = null;
278 TypeHandle.CleanUp ();
282 /// A filter for Findmembers that uses the Signature object to
285 static bool SignatureFilter (MemberInfo mi, object criteria)
287 Signature sig = (Signature) criteria;
289 if (!(mi is MethodBase))
292 if (mi.Name != sig.name)
295 int count = sig.args.Length;
297 if (mi is MethodBuilder || mi is ConstructorBuilder){
298 Type [] candidate_args = GetArgumentTypes ((MethodBase) mi);
300 if (candidate_args.Length != count)
303 for (int i = 0; i < count; i++)
304 if (candidate_args [i] != sig.args [i])
309 ParameterInfo [] pars = ((MethodBase) mi).GetParameters ();
311 if (pars.Length != count)
314 for (int i = 0; i < count; i++)
315 if (pars [i].ParameterType != sig.args [i])
321 // A delegate that points to the filter above.
322 static MemberFilter signature_filter;
325 // These are expressions that represent some of the internal data types, used
328 static void InitExpressionTypes ()
330 system_object_expr = new TypeLookupExpression ("System.Object");
331 system_string_expr = new TypeLookupExpression ("System.String");
332 system_boolean_expr = new TypeLookupExpression ("System.Boolean");
333 system_decimal_expr = new TypeLookupExpression ("System.Decimal");
334 system_single_expr = new TypeLookupExpression ("System.Single");
335 system_double_expr = new TypeLookupExpression ("System.Double");
336 system_sbyte_expr = new TypeLookupExpression ("System.SByte");
337 system_byte_expr = new TypeLookupExpression ("System.Byte");
338 system_int16_expr = new TypeLookupExpression ("System.Int16");
339 system_uint16_expr = new TypeLookupExpression ("System.UInt16");
340 system_int32_expr = new TypeLookupExpression ("System.Int32");
341 system_uint32_expr = new TypeLookupExpression ("System.UInt32");
342 system_int64_expr = new TypeLookupExpression ("System.Int64");
343 system_uint64_expr = new TypeLookupExpression ("System.UInt64");
344 system_char_expr = new TypeLookupExpression ("System.Char");
345 system_void_expr = new TypeLookupExpression ("System.Void");
346 system_asynccallback_expr = new TypeLookupExpression ("System.AsyncCallback");
347 system_iasyncresult_expr = new TypeLookupExpression ("System.IAsyncResult");
348 system_valuetype_expr = new TypeLookupExpression ("System.ValueType");
351 static TypeManager ()
353 assemblies = new Assembly [0];
355 user_types = new ArrayList ();
357 types = new Hashtable ();
358 typecontainers = new Hashtable ();
360 builder_to_declspace = new PtrHashtable ();
361 builder_to_method = new PtrHashtable ();
362 method_arguments = new PtrHashtable ();
363 method_internal_params = new PtrHashtable ();
364 indexer_arguments = new PtrHashtable ();
365 builder_to_ifaces = new PtrHashtable ();
367 NoTypes = new Type [0];
368 NoTypeExprs = new TypeExpr [0];
370 signature_filter = new MemberFilter (SignatureFilter);
371 InitExpressionTypes ();
374 public static void HandleDuplicate (string name, Type t)
376 Type prev = (Type) types [name];
377 TypeContainer tc = builder_to_declspace [prev] as TypeContainer;
381 // This probably never happens, as we catch this before
383 Report.Error (-17, "The type `" + name + "' has already been defined.");
387 tc = builder_to_declspace [t] as TypeContainer;
390 1595, "The type `" + name + "' is defined in an existing assembly;"+
391 " Using the new definition from: " + tc.Location);
394 1595, "The type `" + name + "' is defined in an existing assembly;");
397 Report.Warning (1595, "Previously defined in: " + prev.Assembly.FullName);
403 public static void AddUserType (string name, TypeBuilder t, TypeExpr[] ifaces)
408 HandleDuplicate (name, t);
413 builder_to_ifaces [t] = ifaces;
417 // This entry point is used by types that we define under the covers
419 public static void RegisterBuilder (TypeBuilder tb, TypeExpr [] ifaces)
422 builder_to_ifaces [tb] = ifaces;
425 public static void AddUserType (string name, TypeBuilder t, TypeContainer tc, TypeExpr [] ifaces)
427 builder_to_declspace.Add (t, tc);
428 typecontainers.Add (name, tc);
429 AddUserType (name, t, ifaces);
432 public static void AddDelegateType (string name, TypeBuilder t, Delegate del)
437 HandleDuplicate (name, t);
440 builder_to_declspace.Add (t, del);
443 public static void AddEnumType (string name, TypeBuilder t, Enum en)
448 HandleDuplicate (name, t);
450 builder_to_declspace.Add (t, en);
453 public static void AddUserInterface (string name, TypeBuilder t, Interface i, TypeExpr [] ifaces)
455 AddUserType (name, t, ifaces);
456 builder_to_declspace.Add (t, i);
460 public static void AddMethod (MethodBase builder, IMethodData method)
462 builder_to_method.Add (builder, method);
465 public static IMethodData GetMethod (MethodBase builder)
467 return (IMethodData) builder_to_method [builder];
471 /// Returns the DeclSpace whose Type is `t' or null if there is no
472 /// DeclSpace for `t' (ie, the Type comes from a library)
474 public static DeclSpace LookupDeclSpace (Type t)
476 return builder_to_declspace [t] as DeclSpace;
480 /// Returns the TypeContainer whose Type is `t' or null if there is no
481 /// TypeContainer for `t' (ie, the Type comes from a library)
483 public static TypeContainer LookupTypeContainer (Type t)
485 return builder_to_declspace [t] as TypeContainer;
488 public static IMemberContainer LookupMemberContainer (Type t)
490 if (t is TypeBuilder) {
491 IMemberContainer container = builder_to_declspace [t] as IMemberContainer;
492 if (container != null)
496 return TypeHandle.GetTypeHandle (t);
499 public static Interface LookupInterface (Type t)
501 return builder_to_declspace [t] as Interface;
504 public static Delegate LookupDelegate (Type t)
506 return builder_to_declspace [t] as Delegate;
509 public static Enum LookupEnum (Type t)
511 return builder_to_declspace [t] as Enum;
514 public static Class LookupClass (Type t)
516 return (Class) builder_to_declspace [t];
520 /// Registers an assembly to load types from.
522 public static void AddAssembly (Assembly a)
524 foreach (Assembly assembly in assemblies) {
529 int top = assemblies.Length;
530 Assembly [] n = new Assembly [top + 1];
532 assemblies.CopyTo (n, 0);
539 /// Registers a module builder to lookup types from
541 public static void AddModule (Module mb)
543 int top = modules != null ? modules.Length : 0;
544 Module [] n = new Module [top + 1];
547 modules.CopyTo (n, 0);
552 public static Module[] Modules {
558 static Hashtable references = new Hashtable ();
561 // Gets the reference to T version of the Type (T&)
563 public static Type GetReferenceType (Type t)
565 string tname = t.FullName + "&";
567 Type ret = t.Assembly.GetType (tname);
570 // If the type comes from the assembly we are building
571 // We need the Hashtable, because .NET 1.1 will return different instance types
572 // every time we call ModuleBuilder.GetType.
575 if (references [t] == null)
576 references [t] = CodeGen.Module.Builder.GetType (tname);
577 ret = (Type) references [t];
583 static Hashtable pointers = new Hashtable ();
586 // Gets the pointer to T version of the Type (T*)
588 public static Type GetPointerType (Type t)
590 string tname = t.FullName + "*";
592 Type ret = t.Assembly.GetType (tname);
595 // If the type comes from the assembly we are building
596 // We need the Hashtable, because .NET 1.1 will return different instance types
597 // every time we call ModuleBuilder.GetType.
600 if (pointers [t] == null)
601 pointers [t] = CodeGen.Module.Builder.GetType (tname);
603 ret = (Type) pointers [t];
610 // Low-level lookup, cache-less
612 static Type LookupTypeReflection (string name)
616 foreach (Assembly a in assemblies){
617 t = a.GetType (name);
622 TypeAttributes ta = t.Attributes & TypeAttributes.VisibilityMask;
623 if (ta == TypeAttributes.NotPublic ||
624 ta == TypeAttributes.NestedPrivate ||
625 ta == TypeAttributes.NestedAssembly ||
626 ta == TypeAttributes.NestedFamANDAssem){
629 // In .NET pointers turn out to be private, even if their
630 // element type is not
633 t = t.GetElementType ();
643 foreach (Module mb in modules) {
644 t = mb.GetType (name);
652 static Hashtable negative_hits = new Hashtable ();
655 // This function is used when you want to avoid the lookups, and want to go
656 // directly to the source. This will use the cache.
658 // Notice that bypassing the cache is bad, because on Microsoft.NET runtime
659 // GetType ("DynamicType[]") != GetType ("DynamicType[]"), and there is no
660 // way to test things other than doing a fullname compare
662 public static Type LookupTypeDirect (string name)
664 Type t = (Type) types [name];
668 if (negative_hits.Contains (name))
671 t = LookupTypeReflection (name);
674 negative_hits [name] = null;
681 static readonly char [] dot_array = { '.' };
684 /// Returns the Type associated with @name, takes care of the fact that
685 /// reflection expects nested types to be separated from the main type
686 /// with a "+" instead of a "."
688 public static Type LookupType (string name)
693 // First lookup in user defined and cached values
696 t = (Type) types [name];
700 // Two thirds of the failures are caught here.
701 if (negative_hits.Contains (name))
704 // Sadly, split takes a param array, so this ends up allocating *EVERY TIME*
705 string [] elements = name.Split (dot_array);
706 int count = elements.Length;
708 for (int n = 1; n <= count; n++){
709 string top_level_type = String.Join (".", elements, 0, n);
711 // One third of the failures are caught here.
712 if (negative_hits.Contains (top_level_type))
715 t = (Type) types [top_level_type];
717 t = LookupTypeReflection (top_level_type);
719 negative_hits [top_level_type] = null;
730 // We know that System.Object does not have children, and since its the parent of
731 // all the objects, it always gets probbed for inner classes.
733 if (top_level_type == "System.Object")
736 string newt = top_level_type + "+" + String.Join ("+", elements, n, count - n);
737 //Console.WriteLine ("Looking up: " + newt + " " + name);
738 t = LookupTypeReflection (newt);
740 negative_hits [name] = null;
745 negative_hits [name] = null;
750 /// Computes the namespaces that we import from the assemblies we reference.
752 public static void ComputeNamespaces ()
754 MethodInfo assembly_get_namespaces = typeof (Assembly).GetMethod ("GetNamespaces", BindingFlags.Instance|BindingFlags.NonPublic);
757 // First add the assembly namespaces
759 if (assembly_get_namespaces != null){
760 int count = assemblies.Length;
762 for (int i = 0; i < count; i++){
763 Assembly a = assemblies [i];
764 string [] namespaces = (string []) assembly_get_namespaces.Invoke (a, null);
765 foreach (string ns in namespaces){
768 Namespace.LookupNamespace (ns, true);
772 Hashtable cache = new Hashtable ();
773 cache.Add ("", null);
774 foreach (Assembly a in assemblies) {
775 foreach (Type t in a.GetExportedTypes ()) {
776 string ns = t.Namespace;
777 if (ns == null || cache.Contains (ns))
780 Namespace.LookupNamespace (ns, true);
781 cache.Add (ns, null);
788 /// Fills static table with exported types from all referenced assemblies.
789 /// This information is required for CLS Compliance tests.
791 public static void LoadAllImportedTypes ()
793 if (!CodeGen.Assembly.IsClsCompliant)
796 all_imported_types = new Hashtable ();
797 foreach (Assembly a in assemblies) {
798 foreach (Type t in a.GetExportedTypes ()) {
799 all_imported_types [t.FullName] = t;
804 public static bool NamespaceClash (string name, Location loc)
806 if (Namespace.LookupNamespace (name, false) == null)
809 Report.Error (519, loc, String.Format ("`{0}' clashes with a predefined namespace", name));
814 /// Returns the C# name of a type if possible, or the full type name otherwise
816 static public string CSharpName (Type t)
818 return Regex.Replace (t.FullName,
820 @"(Int32|UInt32|Int16|UInt16|Int64|UInt64|" +
821 @"Single|Double|Char|Decimal|Byte|SByte|Object|" +
822 @"Boolean|String|Void)" +
824 new MatchEvaluator (CSharpNameMatch));
827 static String CSharpNameMatch (Match match)
829 string s = match.Groups [1].Captures [0].Value;
831 Replace ("int32", "int").
832 Replace ("uint32", "uint").
833 Replace ("int16", "short").
834 Replace ("uint16", "ushort").
835 Replace ("int64", "long").
836 Replace ("uint64", "ulong").
837 Replace ("single", "float").
838 Replace ("boolean", "bool")
839 + match.Groups [2].Captures [0].Value;
843 /// Returns the signature of the method with full namespace classification
845 static public string GetFullNameSignature (MemberInfo mi)
849 n = mi.DeclaringType.Name;
851 return mi.DeclaringType.FullName.Replace ('+', '.') + '.' + n;
855 /// Returns the signature of the property and indexer
857 static public string CSharpSignature (PropertyBuilder pb, bool is_indexer)
860 return GetFullNameSignature (pb);
863 MethodBase mb = pb.GetSetMethod (true) != null ? pb.GetSetMethod (true) : pb.GetGetMethod (true);
864 string signature = GetFullNameSignature (mb);
865 string arg = TypeManager.LookupParametersByBuilder (mb).ParameterDesc (0);
866 return String.Format ("{0}.this[{1}]", signature.Substring (0, signature.LastIndexOf ('.')), arg);
870 /// Returns the signature of the method
872 static public string CSharpSignature (MethodBase mb)
877 // FIXME: We should really have a single function to do
878 // everything instead of the following 5 line pattern
880 ParameterData iparams = LookupParametersByBuilder (mb);
882 if (iparams == null){
883 ParameterInfo [] pi = mb.GetParameters ();
884 iparams = new ReflectionParameters (pi);
887 for (int i = 0; i < iparams.Count; i++) {
891 sig += iparams.ParameterDesc(i);
895 return GetFullNameSignature (mb) + sig;
899 /// Looks up a type, and aborts if it is not found. This is used
900 /// by types required by the compiler
902 static Type CoreLookupType (string name)
904 Type t = LookupTypeDirect (name);
907 Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
908 Environment.Exit (1);
915 /// Returns the MethodInfo for a method named `name' defined
916 /// in type `t' which takes arguments of types `args'
918 static MethodInfo GetMethod (Type t, string name, Type [] args, bool is_private, bool report_errors)
922 BindingFlags flags = instance_and_static | BindingFlags.Public;
928 flags |= BindingFlags.NonPublic;
930 list = FindMembers (t, MemberTypes.Method, flags, signature_filter, sig);
931 if (list.Count == 0) {
933 Report.Error (-19, "Can not find the core function `" + name + "'");
937 MethodInfo mi = list [0] as MethodInfo;
940 Report.Error (-19, "Can not find the core function `" + name + "'");
947 static MethodInfo GetMethod (Type t, string name, Type [] args, bool report_errors)
949 return GetMethod (t, name, args, false, report_errors);
952 static MethodInfo GetMethod (Type t, string name, Type [] args)
954 return GetMethod (t, name, args, true);
959 /// Returns the ConstructorInfo for "args"
961 static ConstructorInfo GetConstructor (Type t, Type [] args)
969 list = FindMembers (t, MemberTypes.Constructor,
970 instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly,
971 signature_filter, sig);
972 if (list.Count == 0){
973 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
977 ConstructorInfo ci = list [0] as ConstructorInfo;
979 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
986 public static void InitEnumUnderlyingTypes ()
989 int32_type = CoreLookupType ("System.Int32");
990 int64_type = CoreLookupType ("System.Int64");
991 uint32_type = CoreLookupType ("System.UInt32");
992 uint64_type = CoreLookupType ("System.UInt64");
993 byte_type = CoreLookupType ("System.Byte");
994 sbyte_type = CoreLookupType ("System.SByte");
995 short_type = CoreLookupType ("System.Int16");
996 ushort_type = CoreLookupType ("System.UInt16");
1000 /// The types have to be initialized after the initial
1001 /// population of the type has happened (for example, to
1002 /// bootstrap the corlib.dll
1004 public static void InitCoreTypes ()
1006 object_type = CoreLookupType ("System.Object");
1007 value_type = CoreLookupType ("System.ValueType");
1009 InitEnumUnderlyingTypes ();
1011 char_type = CoreLookupType ("System.Char");
1012 string_type = CoreLookupType ("System.String");
1013 float_type = CoreLookupType ("System.Single");
1014 double_type = CoreLookupType ("System.Double");
1015 char_ptr_type = CoreLookupType ("System.Char*");
1016 decimal_type = CoreLookupType ("System.Decimal");
1017 bool_type = CoreLookupType ("System.Boolean");
1018 enum_type = CoreLookupType ("System.Enum");
1020 multicast_delegate_type = CoreLookupType ("System.MulticastDelegate");
1021 delegate_type = CoreLookupType ("System.Delegate");
1023 array_type = CoreLookupType ("System.Array");
1024 void_type = CoreLookupType ("System.Void");
1025 type_type = CoreLookupType ("System.Type");
1027 runtime_field_handle_type = CoreLookupType ("System.RuntimeFieldHandle");
1028 runtime_helpers_type = CoreLookupType ("System.Runtime.CompilerServices.RuntimeHelpers");
1029 default_member_type = CoreLookupType ("System.Reflection.DefaultMemberAttribute");
1030 runtime_handle_type = CoreLookupType ("System.RuntimeTypeHandle");
1031 asynccallback_type = CoreLookupType ("System.AsyncCallback");
1032 iasyncresult_type = CoreLookupType ("System.IAsyncResult");
1033 ienumerator_type = CoreLookupType ("System.Collections.IEnumerator");
1034 ienumerable_type = CoreLookupType ("System.Collections.IEnumerable");
1035 idisposable_type = CoreLookupType ("System.IDisposable");
1036 icloneable_type = CoreLookupType ("System.ICloneable");
1037 iconvertible_type = CoreLookupType ("System.IConvertible");
1038 monitor_type = CoreLookupType ("System.Threading.Monitor");
1039 intptr_type = CoreLookupType ("System.IntPtr");
1041 attribute_type = CoreLookupType ("System.Attribute");
1042 attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
1043 dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
1044 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
1045 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
1046 param_array_type = CoreLookupType ("System.ParamArrayAttribute");
1047 in_attribute_type = CoreLookupType ("System.Runtime.InteropServices.InAttribute");
1048 typed_reference_type = CoreLookupType ("System.TypedReference");
1049 arg_iterator_type = CoreLookupType ("System.ArgIterator");
1050 mbr_type = CoreLookupType ("System.MarshalByRefObject");
1053 // Sigh. Remove this before the release. Wonder what versions of Mono
1054 // people are running.
1056 guid_attr_type = LookupType ("System.Runtime.InteropServices.GuidAttribute");
1058 unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
1060 void_ptr_type = CoreLookupType ("System.Void*");
1062 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
1064 exception_type = CoreLookupType ("System.Exception");
1065 invalid_operation_exception_type = CoreLookupType ("System.InvalidOperationException");
1070 obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
1071 conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
1072 cls_compliant_attribute_type = CoreLookupType ("System.CLSCompliantAttribute");
1073 struct_layout_attribute_type = CoreLookupType ("System.Runtime.InteropServices.StructLayoutAttribute");
1074 field_offset_attribute_type = CoreLookupType ("System.Runtime.InteropServices.FieldOffsetAttribute");
1077 // When compiling corlib, store the "real" types here.
1079 if (!RootContext.StdLib) {
1080 system_int32_type = typeof (System.Int32);
1081 system_array_type = typeof (System.Array);
1082 system_type_type = typeof (System.Type);
1083 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
1085 Type [] void_arg = { };
1086 system_int_array_get_length = GetMethod (
1087 system_array_type, "get_Length", void_arg);
1088 system_int_array_get_rank = GetMethod (
1089 system_array_type, "get_Rank", void_arg);
1090 system_object_array_clone = GetMethod (
1091 system_array_type, "Clone", void_arg);
1093 Type [] system_int_arg = { system_int32_type };
1094 system_int_array_get_length_int = GetMethod (
1095 system_array_type, "GetLength", system_int_arg);
1096 system_int_array_get_upper_bound_int = GetMethod (
1097 system_array_type, "GetUpperBound", system_int_arg);
1098 system_int_array_get_lower_bound_int = GetMethod (
1099 system_array_type, "GetLowerBound", system_int_arg);
1101 Type [] system_array_int_arg = { system_array_type, system_int32_type };
1102 system_void_array_copyto_array_int = GetMethod (
1103 system_array_type, "CopyTo", system_array_int_arg);
1105 Type [] system_3_type_arg = {
1106 system_type_type, system_type_type, system_type_type };
1107 Type [] system_4_type_arg = {
1108 system_type_type, system_type_type, system_type_type, system_type_type };
1110 MethodInfo set_corlib_type_builders = GetMethod (
1111 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1112 system_4_type_arg, true, false);
1114 if (set_corlib_type_builders != null) {
1115 object[] args = new object [4];
1116 args [0] = object_type;
1117 args [1] = value_type;
1118 args [2] = enum_type;
1119 args [3] = void_type;
1121 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1123 // Compatibility for an older version of the class libs.
1124 set_corlib_type_builders = GetMethod (
1125 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1126 system_3_type_arg, true, true);
1128 if (set_corlib_type_builders == null) {
1129 Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
1133 object[] args = new object [3];
1134 args [0] = object_type;
1135 args [1] = value_type;
1136 args [2] = enum_type;
1138 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1142 system_object_expr.Type = object_type;
1143 system_string_expr.Type = string_type;
1144 system_boolean_expr.Type = bool_type;
1145 system_decimal_expr.Type = decimal_type;
1146 system_single_expr.Type = float_type;
1147 system_double_expr.Type = double_type;
1148 system_sbyte_expr.Type = sbyte_type;
1149 system_byte_expr.Type = byte_type;
1150 system_int16_expr.Type = short_type;
1151 system_uint16_expr.Type = ushort_type;
1152 system_int32_expr.Type = int32_type;
1153 system_uint32_expr.Type = uint32_type;
1154 system_int64_expr.Type = int64_type;
1155 system_uint64_expr.Type = uint64_type;
1156 system_char_expr.Type = char_type;
1157 system_void_expr.Type = void_type;
1158 system_asynccallback_expr.Type = asynccallback_type;
1159 system_iasyncresult_expr.Type = iasyncresult_type;
1160 system_valuetype_expr.Type = value_type;
1164 // The helper methods that are used by the compiler
1166 public static void InitCodeHelpers ()
1169 // Now load the default methods that we use.
1171 Type [] string_string = { string_type, string_type };
1172 string_concat_string_string = GetMethod (
1173 string_type, "Concat", string_string);
1174 Type [] string_string_string = { string_type, string_type, string_type };
1175 string_concat_string_string_string = GetMethod (
1176 string_type, "Concat", string_string_string);
1177 Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
1178 string_concat_string_string_string_string = GetMethod (
1179 string_type, "Concat", string_string_string_string);
1180 Type[] params_string = { TypeManager.LookupType ("System.String[]") };
1181 string_concat_string_dot_dot_dot = GetMethod (
1182 string_type, "Concat", params_string);
1184 Type [] object_object = { object_type, object_type };
1185 string_concat_object_object = GetMethod (
1186 string_type, "Concat", object_object);
1187 Type [] object_object_object = { object_type, object_type, object_type };
1188 string_concat_object_object_object = GetMethod (
1189 string_type, "Concat", object_object_object);
1190 Type[] params_object = { TypeManager.LookupType ("System.Object[]") };
1191 string_concat_object_dot_dot_dot = GetMethod (
1192 string_type, "Concat", params_object);
1194 Type [] string_ = { string_type };
1195 string_isinterneted_string = GetMethod (
1196 string_type, "IsInterned", string_);
1198 Type [] runtime_type_handle = { runtime_handle_type };
1199 system_type_get_type_from_handle = GetMethod (
1200 type_type, "GetTypeFromHandle", runtime_type_handle);
1202 Type [] delegate_delegate = { delegate_type, delegate_type };
1203 delegate_combine_delegate_delegate = GetMethod (
1204 delegate_type, "Combine", delegate_delegate);
1206 delegate_remove_delegate_delegate = GetMethod (
1207 delegate_type, "Remove", delegate_delegate);
1212 Type [] void_arg = { };
1213 object_getcurrent_void = GetMethod (
1214 ienumerator_type, "get_Current", void_arg);
1215 bool_movenext_void = GetMethod (
1216 ienumerator_type, "MoveNext", void_arg);
1217 void_reset_void = GetMethod (
1218 ienumerator_type, "Reset", void_arg);
1219 void_dispose_void = GetMethod (
1220 idisposable_type, "Dispose", void_arg);
1221 int_get_offset_to_string_data = GetMethod (
1222 runtime_helpers_type, "get_OffsetToStringData", void_arg);
1223 int_array_get_length = GetMethod (
1224 array_type, "get_Length", void_arg);
1225 int_array_get_rank = GetMethod (
1226 array_type, "get_Rank", void_arg);
1227 ienumerable_getenumerator_void = GetMethod (
1228 ienumerable_type, "GetEnumerator", void_arg);
1233 Type [] int_arg = { int32_type };
1234 int_array_get_length_int = GetMethod (
1235 array_type, "GetLength", int_arg);
1236 int_array_get_upper_bound_int = GetMethod (
1237 array_type, "GetUpperBound", int_arg);
1238 int_array_get_lower_bound_int = GetMethod (
1239 array_type, "GetLowerBound", int_arg);
1242 // System.Array methods
1244 object_array_clone = GetMethod (
1245 array_type, "Clone", void_arg);
1246 Type [] array_int_arg = { array_type, int32_type };
1247 void_array_copyto_array_int = GetMethod (
1248 array_type, "CopyTo", array_int_arg);
1253 Type [] object_arg = { object_type };
1254 void_monitor_enter_object = GetMethod (
1255 monitor_type, "Enter", object_arg);
1256 void_monitor_exit_object = GetMethod (
1257 monitor_type, "Exit", object_arg);
1259 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1261 void_initializearray_array_fieldhandle = GetMethod (
1262 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1267 int_getlength_int = GetMethod (
1268 array_type, "GetLength", int_arg);
1271 // Decimal constructors
1273 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1274 void_decimal_ctor_five_args = GetConstructor (
1275 decimal_type, dec_arg);
1280 cons_param_array_attribute = GetConstructor (
1281 param_array_type, void_arg);
1283 unverifiable_code_ctor = GetConstructor (
1284 unverifiable_code_type, void_arg);
1287 // InvalidOperationException
1289 invalid_operation_ctor = GetConstructor (
1290 invalid_operation_exception_type, void_arg);
1294 object_ctor = GetConstructor (object_type, void_arg);
1298 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1301 /// This is the "old", non-cache based FindMembers() function. We cannot use
1302 /// the cache here because there is no member name argument.
1304 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1305 MemberFilter filter, object criteria)
1307 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1310 // `builder_to_declspace' contains all dynamic types.
1314 Timer.StartTimer (TimerType.FindMembers);
1315 list = decl.FindMembers (mt, bf, filter, criteria);
1316 Timer.StopTimer (TimerType.FindMembers);
1321 // We have to take care of arrays specially, because GetType on
1322 // a TypeBuilder array will return a Type, not a TypeBuilder,
1323 // and we can not call FindMembers on this type.
1325 if (t.IsSubclassOf (TypeManager.array_type))
1326 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1329 // Since FindMembers will not lookup both static and instance
1330 // members, we emulate this behaviour here.
1332 if ((bf & instance_and_static) == instance_and_static){
1333 MemberInfo [] i_members = t.FindMembers (
1334 mt, bf & ~BindingFlags.Static, filter, criteria);
1336 int i_len = i_members.Length;
1338 MemberInfo one = i_members [0];
1341 // If any of these are present, we are done!
1343 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1344 return new MemberList (i_members);
1347 MemberInfo [] s_members = t.FindMembers (
1348 mt, bf & ~BindingFlags.Instance, filter, criteria);
1350 int s_len = s_members.Length;
1351 if (i_len > 0 || s_len > 0)
1352 return new MemberList (i_members, s_members);
1355 return new MemberList (i_members);
1357 return new MemberList (s_members);
1361 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1366 /// This method is only called from within MemberLookup. It tries to use the member
1367 /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
1368 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1369 /// our return value will already contain all inherited members and the caller don't need
1370 /// to check base classes and interfaces anymore.
1372 private static MemberInfo [] MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1373 string name, out bool used_cache)
1376 // We have to take care of arrays specially, because GetType on
1377 // a TypeBuilder array will return a Type, not a TypeBuilder,
1378 // and we can not call FindMembers on this type.
1380 if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
1382 return TypeHandle.ArrayType.MemberCache.FindMembers (
1383 mt, bf, name, FilterWithClosure_delegate, null);
1387 // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
1388 // and we can ask the DeclSpace for the MemberCache.
1390 if (t is TypeBuilder) {
1391 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1392 MemberCache cache = decl.MemberCache;
1395 // If this DeclSpace has a MemberCache, use it.
1398 if (cache != null) {
1400 return cache.FindMembers (
1401 mt, bf, name, FilterWithClosure_delegate, null);
1404 // If there is no MemberCache, we need to use the "normal" FindMembers.
1405 // Note, this is a VERY uncommon route!
1408 Timer.StartTimer (TimerType.FindMembers);
1409 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
1410 FilterWithClosure_delegate, name);
1411 Timer.StopTimer (TimerType.FindMembers);
1414 return (MemberInfo []) list;
1418 // This call will always succeed. There is exactly one TypeHandle instance per
1419 // type, TypeHandle.GetTypeHandle() will either return it or create a new one
1420 // if it didn't already exist.
1422 TypeHandle handle = TypeHandle.GetTypeHandle (t);
1425 return handle.MemberCache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1428 public static bool IsBuiltinType (Type t)
1430 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1431 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1432 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1433 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
1439 public static bool IsBuiltinType (TypeContainer tc)
1441 return IsBuiltinType (tc.TypeBuilder);
1445 // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
1446 // the pieces in the code where we use IsBuiltinType and special case decimal_type.
1448 public static bool IsCLRType (Type t)
1450 if (t == object_type || t == int32_type || t == uint32_type ||
1451 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1452 t == char_type || t == short_type || t == bool_type ||
1453 t == sbyte_type || t == byte_type || t == ushort_type)
1459 public static bool IsDelegateType (Type t)
1461 if (t.IsSubclassOf (TypeManager.delegate_type))
1467 public static bool IsEnumType (Type t)
1469 if (t == TypeManager.enum_type || t.IsSubclassOf (TypeManager.enum_type))
1474 public static bool IsBuiltinOrEnum (Type t)
1476 if (IsBuiltinType (t))
1486 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1488 public static bool IsUnmanagedType (Type t)
1490 if (IsBuiltinType (t) && t != TypeManager.string_type)
1499 if (IsValueType (t)){
1500 if (t is TypeBuilder){
1501 TypeContainer tc = LookupTypeContainer (t);
1503 if (tc.Fields != null){
1504 foreach (Field f in tc.Fields){
1505 if (f.FieldBuilder.IsStatic)
1507 if (!IsUnmanagedType (f.FieldBuilder.FieldType))
1513 FieldInfo [] fields = t.GetFields ();
1515 foreach (FieldInfo f in fields){
1518 if (!IsUnmanagedType (f.FieldType))
1528 public static bool IsValueType (Type t)
1530 if (t.IsSubclassOf (TypeManager.value_type) && (t != TypeManager.enum_type))
1536 public static bool IsInterfaceType (Type t)
1538 Interface iface = builder_to_declspace [t] as Interface;
1547 // Checks whether `type' is a subclass or nested child of `parent'.
1549 public static bool IsSubclassOrNestedChildOf (Type type, Type parent)
1552 if ((type == parent) || type.IsSubclassOf (parent))
1555 // Handle nested types.
1556 type = type.DeclaringType;
1557 } while (type != null);
1563 // Checks whether `type' is a nested child of `parent'.
1565 public static bool IsNestedChildOf (Type type, Type parent)
1570 type = type.DeclaringType;
1571 while (type != null) {
1575 type = type.DeclaringType;
1582 // Do the right thing when returning the element type of an
1583 // array type based on whether we are compiling corlib or not
1585 public static Type GetElementType (Type t)
1587 if (RootContext.StdLib)
1588 return t.GetElementType ();
1590 return TypeToCoreType (t.GetElementType ());
1594 /// Returns the User Defined Types
1596 public static ArrayList UserTypes {
1602 public static Hashtable TypeContainers {
1604 return typecontainers;
1608 static Hashtable builder_to_constant;
1610 public static void RegisterConstant (FieldBuilder fb, Const c)
1612 if (builder_to_constant == null)
1613 builder_to_constant = new PtrHashtable ();
1615 if (builder_to_constant.Contains (fb))
1618 builder_to_constant.Add (fb, c);
1621 public static Const LookupConstant (FieldBuilder fb)
1623 if (builder_to_constant == null)
1626 return (Const) builder_to_constant [fb];
1630 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1634 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1635 /// for anything which is dynamic, and we need this in a number of places,
1636 /// we register this information here, and use it afterwards.
1638 static public bool RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1643 method_arguments.Add (mb, args);
1644 method_internal_params.Add (mb, ip);
1649 static public InternalParameters LookupParametersByBuilder (MethodBase mb)
1651 if (! (mb is ConstructorBuilder || mb is MethodBuilder))
1654 if (method_internal_params.Contains (mb))
1655 return (InternalParameters) method_internal_params [mb];
1657 throw new Exception ("Argument for Method not registered" + mb);
1661 /// Returns the argument types for a method based on its methodbase
1663 /// For dynamic methods, we use the compiler provided types, for
1664 /// methods from existing assemblies we load them from GetParameters,
1665 /// and insert them into the cache
1667 static public Type [] GetArgumentTypes (MethodBase mb)
1669 if (method_arguments.Contains (mb))
1670 return (Type []) method_arguments [mb];
1672 ParameterInfo [] pi = mb.GetParameters ();
1674 Type [] types = new Type [c];
1676 for (int i = 0; i < c; i++)
1677 types [i] = pi [i].ParameterType;
1679 method_arguments.Add (mb, types);
1685 /// Returns the argument types for an indexer based on its PropertyInfo
1687 /// For dynamic indexers, we use the compiler provided types, for
1688 /// indexers from existing assemblies we load them from GetParameters,
1689 /// and insert them into the cache
1691 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1693 if (indexer_arguments.Contains (indexer))
1694 return (Type []) indexer_arguments [indexer];
1695 else if (indexer is PropertyBuilder)
1696 // If we're a PropertyBuilder and not in the
1697 // `indexer_arguments' hash, then we're a property and
1701 ParameterInfo [] pi = indexer.GetIndexParameters ();
1702 // Property, not an indexer.
1706 Type [] types = new Type [c];
1708 for (int i = 0; i < c; i++)
1709 types [i] = pi [i].ParameterType;
1711 indexer_arguments.Add (indexer, types);
1717 // This is a workaround the fact that GetValue is not
1718 // supported for dynamic types
1720 static Hashtable fields = new Hashtable ();
1721 static public bool RegisterFieldValue (FieldBuilder fb, object value)
1723 if (fields.Contains (fb))
1726 fields.Add (fb, value);
1731 static public object GetValue (FieldBuilder fb)
1736 static Hashtable fieldbuilders_to_fields = new Hashtable ();
1737 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1739 if (fieldbuilders_to_fields.Contains (fb))
1742 fieldbuilders_to_fields.Add (fb, f);
1747 // The return value can be null; This will be the case for
1748 // auxiliary FieldBuilders created by the compiler that have no
1749 // real field being declared on the source code
1751 static public FieldBase GetField (FieldInfo fb)
1753 return (FieldBase) fieldbuilders_to_fields [fb];
1756 static Hashtable events;
1758 static public bool RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1761 events = new Hashtable ();
1763 if (events.Contains (eb))
1766 events.Add (eb, new Pair (add, remove));
1771 static public MethodInfo GetAddMethod (EventInfo ei)
1773 if (ei is MyEventBuilder) {
1774 Pair pair = (Pair) events [ei];
1776 return (MethodInfo) pair.First;
1778 return ei.GetAddMethod ();
1781 static public MethodInfo GetRemoveMethod (EventInfo ei)
1783 if (ei is MyEventBuilder) {
1784 Pair pair = (Pair) events [ei];
1786 return (MethodInfo) pair.Second;
1788 return ei.GetRemoveMethod ();
1791 static Hashtable priv_fields_events;
1793 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1795 if (priv_fields_events == null)
1796 priv_fields_events = new Hashtable ();
1798 if (priv_fields_events.Contains (einfo))
1801 priv_fields_events.Add (einfo, builder);
1806 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1808 if (priv_fields_events == null)
1811 return (MemberInfo) priv_fields_events [ei];
1814 static Hashtable properties;
1816 static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase set)
1818 if (properties == null)
1819 properties = new Hashtable ();
1821 if (properties.Contains (pb))
1824 properties.Add (pb, new Pair (get, set));
1829 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get,
1830 MethodBase set, Type[] args)
1832 if (!RegisterProperty (pb, get,set))
1835 indexer_arguments.Add (pb, args);
1840 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen)
1842 Hashtable hash = new Hashtable ();
1843 return CheckStructCycles (tc, seen, hash);
1846 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen,
1849 if (!(tc is Struct) || IsBuiltinType (tc))
1853 // `seen' contains all types we've already visited.
1855 if (seen.Contains (tc))
1857 seen.Add (tc, null);
1859 if (tc.Fields == null)
1862 foreach (Field field in tc.Fields) {
1863 if (field.FieldBuilder.IsStatic)
1866 Type ftype = field.FieldBuilder.FieldType;
1867 TypeContainer ftc = LookupTypeContainer (ftype);
1871 if (hash.Contains (ftc)) {
1872 Report.Error (523, tc.Location,
1873 "Struct member `{0}.{1}' of type `{2}' " +
1874 "causes a cycle in the struct layout",
1875 tc.Name, field.Name, ftc.Name);
1880 // `hash' contains all types in the current path.
1882 hash.Add (tc, null);
1884 bool ok = CheckStructCycles (ftc, seen, hash);
1891 if (!seen.Contains (ftc))
1892 seen.Add (ftc, null);
1899 /// Given an array of interface types, expand and eliminate repeated ocurrences
1900 /// of an interface.
1904 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
1907 public static TypeExpr[] ExpandInterfaces (TypeExpr [] base_interfaces)
1909 ArrayList new_ifaces = new ArrayList ();
1911 foreach (TypeExpr iface in base_interfaces){
1912 if (!new_ifaces.Contains (iface))
1913 new_ifaces.Add (iface);
1915 TypeExpr [] implementing = iface.GetInterfaces ();
1917 foreach (TypeExpr imp in implementing){
1918 if (!new_ifaces.Contains (imp))
1919 new_ifaces.Add (imp);
1922 TypeExpr [] ret = new TypeExpr [new_ifaces.Count];
1923 new_ifaces.CopyTo (ret, 0);
1927 static PtrHashtable iface_cache = new PtrHashtable ();
1930 /// This function returns the interfaces in the type `t'. Works with
1931 /// both types and TypeBuilders.
1933 public static TypeExpr [] GetInterfaces (Type t)
1936 TypeExpr [] cached = iface_cache [t] as TypeExpr [];
1941 // The reason for catching the Array case is that Reflection.Emit
1942 // will not return a TypeBuilder for Array types of TypeBuilder types,
1943 // but will still throw an exception if we try to call GetInterfaces
1946 // Since the array interfaces are always constant, we return those for
1951 t = TypeManager.array_type;
1953 if (t is TypeBuilder){
1954 TypeExpr [] parent_ifaces;
1956 if (t.BaseType == null)
1957 parent_ifaces = NoTypeExprs;
1959 parent_ifaces = GetInterfaces (t.BaseType);
1960 TypeExpr [] type_ifaces = (TypeExpr []) builder_to_ifaces [t];
1961 if (type_ifaces == null)
1962 type_ifaces = NoTypeExprs;
1964 int parent_count = parent_ifaces.Length;
1965 TypeExpr [] result = new TypeExpr [parent_count + type_ifaces.Length];
1966 parent_ifaces.CopyTo (result, 0);
1967 type_ifaces.CopyTo (result, parent_count);
1969 iface_cache [t] = result;
1972 Type [] ifaces = t.GetInterfaces ();
1973 if (ifaces.Length == 0)
1976 TypeExpr [] result = new TypeExpr [ifaces.Length];
1977 for (int i = 0; i < ifaces.Length; i++)
1978 result [i] = new TypeExpression (ifaces [i], Location.Null);
1980 iface_cache [t] = result;
1986 // gets the interfaces that are declared explicitly on t
1988 public static TypeExpr [] GetExplicitInterfaces (TypeBuilder t)
1990 return (TypeExpr []) builder_to_ifaces [t];
1994 /// The following is used to check if a given type implements an interface.
1995 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
1997 public static bool ImplementsInterface (Type t, Type iface)
1999 TypeExpr [] interfaces;
2002 // FIXME OPTIMIZATION:
2003 // as soon as we hit a non-TypeBuiler in the interface
2004 // chain, we could return, as the `Type.GetInterfaces'
2005 // will return all the interfaces implement by the type
2009 interfaces = GetInterfaces (t);
2011 if (interfaces != null){
2012 foreach (TypeExpr i in interfaces){
2013 if (i.Type == iface)
2019 } while (t != null);
2024 static NumberFormatInfo nf_provider = CultureInfo.CurrentCulture.NumberFormat;
2026 // This is a custom version of Convert.ChangeType() which works
2027 // with the TypeBuilder defined types when compiling corlib.
2028 public static object ChangeType (object value, Type conversionType, out bool error)
2030 IConvertible convert_value = value as IConvertible;
2032 if (convert_value == null){
2038 // We must use Type.Equals() here since `conversionType' is
2039 // the TypeBuilder created version of a system type and not
2040 // the system type itself. You cannot use Type.GetTypeCode()
2041 // on such a type - it'd always return TypeCode.Object.
2045 if (conversionType.Equals (typeof (Boolean)))
2046 return (object)(convert_value.ToBoolean (nf_provider));
2047 else if (conversionType.Equals (typeof (Byte)))
2048 return (object)(convert_value.ToByte (nf_provider));
2049 else if (conversionType.Equals (typeof (Char)))
2050 return (object)(convert_value.ToChar (nf_provider));
2051 else if (conversionType.Equals (typeof (DateTime)))
2052 return (object)(convert_value.ToDateTime (nf_provider));
2053 else if (conversionType.Equals (typeof (Decimal)))
2054 return (object)(convert_value.ToDecimal (nf_provider));
2055 else if (conversionType.Equals (typeof (Double)))
2056 return (object)(convert_value.ToDouble (nf_provider));
2057 else if (conversionType.Equals (typeof (Int16)))
2058 return (object)(convert_value.ToInt16 (nf_provider));
2059 else if (conversionType.Equals (typeof (Int32)))
2060 return (object)(convert_value.ToInt32 (nf_provider));
2061 else if (conversionType.Equals (typeof (Int64)))
2062 return (object)(convert_value.ToInt64 (nf_provider));
2063 else if (conversionType.Equals (typeof (SByte)))
2064 return (object)(convert_value.ToSByte (nf_provider));
2065 else if (conversionType.Equals (typeof (Single)))
2066 return (object)(convert_value.ToSingle (nf_provider));
2067 else if (conversionType.Equals (typeof (String)))
2068 return (object)(convert_value.ToString (nf_provider));
2069 else if (conversionType.Equals (typeof (UInt16)))
2070 return (object)(convert_value.ToUInt16 (nf_provider));
2071 else if (conversionType.Equals (typeof (UInt32)))
2072 return (object)(convert_value.ToUInt32 (nf_provider));
2073 else if (conversionType.Equals (typeof (UInt64)))
2074 return (object)(convert_value.ToUInt64 (nf_provider));
2075 else if (conversionType.Equals (typeof (Object)))
2076 return (object)(value);
2086 // This is needed, because enumerations from assemblies
2087 // do not report their underlyingtype, but they report
2090 public static Type EnumToUnderlying (Type t)
2092 if (t == TypeManager.enum_type)
2095 t = t.UnderlyingSystemType;
2096 if (!TypeManager.IsEnumType (t))
2099 if (t is TypeBuilder) {
2100 // slow path needed to compile corlib
2101 if (t == TypeManager.bool_type ||
2102 t == TypeManager.byte_type ||
2103 t == TypeManager.sbyte_type ||
2104 t == TypeManager.char_type ||
2105 t == TypeManager.short_type ||
2106 t == TypeManager.ushort_type ||
2107 t == TypeManager.int32_type ||
2108 t == TypeManager.uint32_type ||
2109 t == TypeManager.int64_type ||
2110 t == TypeManager.uint64_type)
2112 throw new Exception ("Unhandled typecode in enum " + " from " + t.AssemblyQualifiedName);
2114 TypeCode tc = Type.GetTypeCode (t);
2117 case TypeCode.Boolean:
2118 return TypeManager.bool_type;
2120 return TypeManager.byte_type;
2121 case TypeCode.SByte:
2122 return TypeManager.sbyte_type;
2124 return TypeManager.char_type;
2125 case TypeCode.Int16:
2126 return TypeManager.short_type;
2127 case TypeCode.UInt16:
2128 return TypeManager.ushort_type;
2129 case TypeCode.Int32:
2130 return TypeManager.int32_type;
2131 case TypeCode.UInt32:
2132 return TypeManager.uint32_type;
2133 case TypeCode.Int64:
2134 return TypeManager.int64_type;
2135 case TypeCode.UInt64:
2136 return TypeManager.uint64_type;
2138 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
2142 // When compiling corlib and called with one of the core types, return
2143 // the corresponding typebuilder for that type.
2145 public static Type TypeToCoreType (Type t)
2147 if (RootContext.StdLib || (t is TypeBuilder))
2150 TypeCode tc = Type.GetTypeCode (t);
2153 case TypeCode.Boolean:
2154 return TypeManager.bool_type;
2156 return TypeManager.byte_type;
2157 case TypeCode.SByte:
2158 return TypeManager.sbyte_type;
2160 return TypeManager.char_type;
2161 case TypeCode.Int16:
2162 return TypeManager.short_type;
2163 case TypeCode.UInt16:
2164 return TypeManager.ushort_type;
2165 case TypeCode.Int32:
2166 return TypeManager.int32_type;
2167 case TypeCode.UInt32:
2168 return TypeManager.uint32_type;
2169 case TypeCode.Int64:
2170 return TypeManager.int64_type;
2171 case TypeCode.UInt64:
2172 return TypeManager.uint64_type;
2173 case TypeCode.Single:
2174 return TypeManager.float_type;
2175 case TypeCode.Double:
2176 return TypeManager.double_type;
2177 case TypeCode.String:
2178 return TypeManager.string_type;
2180 if (t == typeof (void))
2181 return TypeManager.void_type;
2182 if (t == typeof (object))
2183 return TypeManager.object_type;
2184 if (t == typeof (System.Type))
2185 return TypeManager.type_type;
2186 if (t == typeof (System.IntPtr))
2187 return TypeManager.intptr_type;
2193 /// Utility function that can be used to probe whether a type
2194 /// is managed or not.
2196 public static bool VerifyUnManaged (Type t, Location loc)
2198 if (t.IsValueType || t.IsPointer){
2200 // FIXME: this is more complex, we actually need to
2201 // make sure that the type does not contain any
2207 if (!RootContext.StdLib && (t == TypeManager.decimal_type))
2208 // We need this explicit check here to make it work when
2209 // compiling corlib.
2214 "Cannot take the address or size of a variable of a managed type ('" +
2215 CSharpName (t) + "')");
2220 /// Returns the name of the indexer in a given type.
2223 /// The default is not always `Item'. The user can change this behaviour by
2224 /// using the DefaultMemberAttribute in the class.
2226 /// For example, the String class indexer is named `Chars' not `Item'
2228 public static string IndexerPropertyName (Type t)
2230 if (t is TypeBuilder) {
2231 if (t.IsInterface) {
2232 Interface i = LookupInterface (t);
2234 if ((i == null) || (i.IndexerName == null))
2237 return i.IndexerName;
2239 TypeContainer tc = LookupTypeContainer (t);
2241 if ((tc == null) || (tc.IndexerName == null))
2244 return tc.IndexerName;
2248 System.Attribute attr = System.Attribute.GetCustomAttribute (
2249 t, TypeManager.default_member_type);
2251 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
2252 return dma.MemberName;
2258 static MethodInfo pinned_method = null;
2259 public static void MakePinned (LocalBuilder builder)
2261 if (pinned_method == null) {
2262 pinned_method = typeof (LocalBuilder).GetMethod ("MakePinned", BindingFlags.Instance | BindingFlags.NonPublic);
2263 if (pinned_method == null) {
2264 Report.Warning (-24, new Location (-1), "Microsoft.NET does not support making pinned variables." +
2265 "This code may cause errors on a runtime with a moving GC");
2271 pinned_method.Invoke (builder, null);
2276 // Returns whether the array of memberinfos contains the given method
2278 public static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
2280 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
2282 foreach (MethodBase method in array) {
2283 if (method.Name != new_method.Name)
2286 if (method is MethodInfo && new_method is MethodInfo)
2287 if (((MethodInfo) method).ReturnType != ((MethodInfo) new_method).ReturnType)
2291 Type [] old_args = TypeManager.GetArgumentTypes (method);
2292 int old_count = old_args.Length;
2295 if (new_args.Length != old_count)
2298 for (i = 0; i < old_count; i++){
2299 if (old_args [i] != new_args [i])
2312 // We copy methods from `new_members' into `target_list' if the signature
2313 // for the method from in the new list does not exist in the target_list
2315 // The name is assumed to be the same.
2317 public static ArrayList CopyNewMethods (ArrayList target_list, IList new_members)
2319 if (target_list == null){
2320 target_list = new ArrayList ();
2322 foreach (MemberInfo mi in new_members){
2323 if (mi is MethodBase)
2324 target_list.Add (mi);
2329 MemberInfo [] target_array = new MemberInfo [target_list.Count];
2330 target_list.CopyTo (target_array, 0);
2332 foreach (MemberInfo mi in new_members){
2333 MethodBase new_method = (MethodBase) mi;
2335 if (!ArrayContainsMethod (target_array, new_method))
2336 target_list.Add (new_method);
2342 public enum MethodFlags {
2343 ShouldIgnore = 1 << 2
2347 // Returns the TypeManager.MethodFlags for this method.
2348 // This emits an error 619 / warning 618 if the method is obsolete.
2349 // In the former case, TypeManager.MethodFlags.IsObsoleteError is returned.
2351 static public MethodFlags GetMethodFlags (MethodBase mb)
2353 MethodFlags flags = 0;
2355 if (mb.DeclaringType is TypeBuilder){
2356 IMethodData method = (IMethodData) builder_to_method [mb];
2357 if (method == null) {
2358 // FIXME: implement Obsolete attribute on Property,
2359 // Indexer and Event.
2363 if (method.ShouldIgnore ())
2364 flags |= MethodFlags.ShouldIgnore;
2369 object [] attrs = mb.GetCustomAttributes (true);
2370 foreach (object ta in attrs){
2371 if (!(ta is System.Attribute)){
2372 Console.WriteLine ("Unknown type in GetMethodFlags: " + ta);
2375 System.Attribute a = (System.Attribute) ta;
2378 // Skip over conditional code.
2380 if (a.TypeId == TypeManager.conditional_attribute_type){
2381 ConditionalAttribute ca = (ConditionalAttribute) a;
2383 if (RootContext.AllDefines [ca.ConditionString] == null)
2384 flags |= MethodFlags.ShouldIgnore;
2391 #region MemberLookup implementation
2394 // Whether we allow private members in the result (since FindMembers
2395 // uses NonPublic for both protected and private), we need to distinguish.
2397 static bool closure_private_ok;
2400 // Who is invoking us and which type is being queried currently.
2402 static Type closure_invocation_type;
2403 static Type closure_qualifier_type;
2406 // The assembly that defines the type is that is calling us
2408 static Assembly closure_invocation_assembly;
2410 static internal bool FilterNone (MemberInfo m, object filter_criteria)
2416 // This filter filters by name + whether it is ok to include private
2417 // members in the search
2419 static internal bool FilterWithClosure (MemberInfo m, object filter_criteria)
2422 // Hack: we know that the filter criteria will always be in the `closure'
2426 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2429 if (((closure_qualifier_type == null) || (closure_qualifier_type == closure_invocation_type)) &&
2430 (m.DeclaringType == closure_invocation_type))
2434 // Ugly: we need to find out the type of `m', and depending
2435 // on this, tell whether we accept or not
2437 if (m is MethodBase){
2438 MethodBase mb = (MethodBase) m;
2439 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2441 if (ma == MethodAttributes.Private)
2442 return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
2443 IsNestedChildOf (closure_invocation_type, m.DeclaringType);
2446 // FamAndAssem requires that we not only derivate, but we are on the
2449 if (ma == MethodAttributes.FamANDAssem){
2450 if (closure_invocation_assembly != mb.DeclaringType.Assembly)
2454 // Assembly and FamORAssem succeed if we're in the same assembly.
2455 if ((ma == MethodAttributes.Assembly) || (ma == MethodAttributes.FamORAssem)){
2456 if (closure_invocation_assembly == mb.DeclaringType.Assembly)
2460 // We already know that we aren't in the same assembly.
2461 if (ma == MethodAttributes.Assembly)
2464 // Family and FamANDAssem require that we derive.
2465 if ((ma == MethodAttributes.Family) || (ma == MethodAttributes.FamANDAssem)){
2466 if (closure_invocation_type == null)
2469 if (!IsSubclassOrNestedChildOf (closure_invocation_type, mb.DeclaringType))
2472 // Although a derived class can access protected members of its base class
2473 // it cannot do so through an instance of the base class (CS1540).
2474 if (!mb.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
2475 (closure_qualifier_type != null) &&
2476 closure_invocation_type.IsSubclassOf (closure_qualifier_type) &&
2477 !TypeManager.IsNestedChildOf (closure_invocation_type, closure_qualifier_type))
2487 if (m is FieldInfo){
2488 FieldInfo fi = (FieldInfo) m;
2489 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2491 if (fa == FieldAttributes.Private)
2492 return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
2493 IsNestedChildOf (closure_invocation_type, m.DeclaringType);
2496 // FamAndAssem requires that we not only derivate, but we are on the
2499 if (fa == FieldAttributes.FamANDAssem){
2500 if (closure_invocation_assembly != fi.DeclaringType.Assembly)
2504 // Assembly and FamORAssem succeed if we're in the same assembly.
2505 if ((fa == FieldAttributes.Assembly) || (fa == FieldAttributes.FamORAssem)){
2506 if (closure_invocation_assembly == fi.DeclaringType.Assembly)
2510 // We already know that we aren't in the same assembly.
2511 if (fa == FieldAttributes.Assembly)
2514 // Family and FamANDAssem require that we derive.
2515 if ((fa == FieldAttributes.Family) || (fa == FieldAttributes.FamANDAssem)){
2516 if (closure_invocation_type == null)
2519 if (!IsSubclassOrNestedChildOf (closure_invocation_type, fi.DeclaringType))
2522 // Although a derived class can access protected members of its base class
2523 // it cannot do so through an instance of the base class (CS1540).
2524 if (!fi.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
2525 (closure_qualifier_type != null) &&
2526 closure_invocation_type.IsSubclassOf (closure_qualifier_type) &&
2527 !TypeManager.IsNestedChildOf (closure_invocation_type, closure_qualifier_type))
2538 // EventInfos and PropertyInfos, return true because they lack permission
2539 // informaiton, so we need to check later on the methods.
2544 static MemberFilter FilterWithClosure_delegate = new MemberFilter (FilterWithClosure);
2545 static MemberFilter FilterNone_delegate = new MemberFilter (FilterNone);
2548 // Looks up a member called `name' in the `queried_type'. This lookup
2549 // is done by code that is contained in the definition for `invocation_type'
2550 // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
2552 // `invocation_type' is used to check whether we're allowed to access the requested
2553 // member wrt its protection level.
2555 // When called from MemberAccess, `qualifier_type' is the type which is used to access
2556 // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
2557 // is B and qualifier_type is A). This is used to do the CS1540 check.
2559 // When resolving a SimpleName, `qualifier_type' is null.
2561 // The `qualifier_type' is used for the CS1540 check; it's normally either null or
2562 // the same than `queried_type' - except when we're being called from BaseAccess;
2563 // in this case, `invocation_type' is the current type and `queried_type' the base
2564 // type, so this'd normally trigger a CS1540.
2566 // The binding flags are `bf' and the kind of members being looked up are `mt'
2568 // The return value always includes private members which code in `invocation_type'
2569 // is allowed to access (using the specified `qualifier_type' if given); only use
2570 // BindingFlags.NonPublic to bypass the permission check.
2572 // Returns an array of a single element for everything but Methods/Constructors
2573 // that might return multiple matches.
2575 public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_type,
2576 Type queried_type, MemberTypes mt,
2577 BindingFlags original_bf, string name)
2579 Timer.StartTimer (TimerType.MemberLookup);
2581 MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_type,
2582 queried_type, mt, original_bf, name);
2584 Timer.StopTimer (TimerType.MemberLookup);
2589 static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_type,
2590 Type queried_type, MemberTypes mt,
2591 BindingFlags original_bf, string name)
2593 BindingFlags bf = original_bf;
2595 ArrayList method_list = null;
2596 Type current_type = queried_type;
2597 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2598 bool skip_iface_check = true, used_cache = false;
2599 bool always_ok_flag = false;
2601 closure_invocation_type = invocation_type;
2602 closure_invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2603 closure_qualifier_type = qualifier_type;
2606 // If we are a nested class, we always have access to our container
2609 if (invocation_type != null){
2610 string invocation_name = invocation_type.FullName;
2611 if (invocation_name.IndexOf ('+') != -1){
2612 string container = queried_type.FullName + "+";
2613 int container_length = container.Length;
2615 if (invocation_name.Length > container_length){
2616 string shared = invocation_name.Substring (0, container_length);
2618 if (shared == container)
2619 always_ok_flag = true;
2624 // This is from the first time we find a method
2625 // in most cases, we do not actually find a method in the base class
2626 // so we can just ignore it, and save the arraylist allocation
2627 MemberInfo [] first_members_list = null;
2628 bool use_first_members_list = false;
2634 // `NonPublic' is lame, because it includes both protected and
2635 // private methods, so we need to control this behavior by
2636 // explicitly tracking if a private method is ok or not.
2638 // The possible cases are:
2639 // public, private and protected (internal does not come into the
2642 if ((invocation_type != null) &&
2643 ((invocation_type == current_type) ||
2644 IsNestedChildOf (invocation_type, current_type)) ||
2646 bf = original_bf | BindingFlags.NonPublic;
2650 closure_private_ok = (original_bf & BindingFlags.NonPublic) != 0;
2652 Timer.StopTimer (TimerType.MemberLookup);
2654 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2656 Timer.StartTimer (TimerType.MemberLookup);
2659 // When queried for an interface type, the cache will automatically check all
2660 // inherited members, so we don't need to do this here. However, this only
2661 // works if we already used the cache in the first iteration of this loop.
2663 // If we used the cache in any further iteration, we can still terminate the
2664 // loop since the cache always looks in all parent classes.
2670 skip_iface_check = false;
2672 if (current_type == TypeManager.object_type)
2675 current_type = current_type.BaseType;
2678 // This happens with interfaces, they have a null
2679 // basetype. Look members up in the Object class.
2681 if (current_type == null)
2682 current_type = TypeManager.object_type;
2685 if (list.Length == 0)
2689 // Events and types are returned by both `static' and `instance'
2690 // searches, which means that our above FindMembers will
2691 // return two copies of the same.
2693 if (list.Length == 1 && !(list [0] is MethodBase)){
2698 // Multiple properties: we query those just to find out the indexer
2701 if (list [0] is PropertyInfo)
2705 // We found an event: the cache lookup returns both the event and
2706 // its private field.
2708 if (list [0] is EventInfo) {
2709 if ((list.Length == 2) && (list [1] is FieldInfo))
2710 return new MemberInfo [] { list [0] };
2717 // We found methods, turn the search into "method scan"
2721 if (first_members_list != null) {
2722 if (use_first_members_list) {
2723 method_list = CopyNewMethods (method_list, first_members_list);
2724 use_first_members_list = false;
2727 method_list = CopyNewMethods (method_list, list);
2729 first_members_list = list;
2730 use_first_members_list = true;
2731 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2733 } while (searching);
2735 if (use_first_members_list) {
2736 foreach (MemberInfo mi in first_members_list) {
2737 if (! (mi is MethodBase)) {
2738 method_list = CopyNewMethods (method_list, first_members_list);
2739 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2742 return (MemberInfo []) first_members_list;
2745 if (method_list != null && method_list.Count > 0)
2746 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2749 // This happens if we already used the cache in the first iteration, in this case
2750 // the cache already looked in all interfaces.
2752 if (skip_iface_check)
2756 // Interfaces do not list members they inherit, so we have to
2759 if (!queried_type.IsInterface)
2762 if (queried_type.IsArray)
2763 queried_type = TypeManager.array_type;
2765 TypeExpr [] ifaces = GetInterfaces (queried_type);
2769 foreach (TypeExpr itype in ifaces){
2772 x = MemberLookup (null, null, itype.Type, mt, bf, name);
2781 // This is used to extract properties and event declarations from a type
2783 static MemberInfo [] SpecialContainerLookup (Type t, bool is_static)
2785 BindingFlags bf = BindingFlags.DeclaredOnly | (is_static ? BindingFlags.Static : BindingFlags.Instance);
2787 bf |= BindingFlags.Public | BindingFlags.NonPublic;
2789 if (t is TypeBuilder) {
2790 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
2792 return (MemberInfo []) decl.FindMembers (
2793 MemberTypes.Property | MemberTypes.Event,
2794 bf, FilterNone_delegate, null);
2796 return t.FindMembers (MemberTypes.Property | MemberTypes.Event,
2797 bf, FilterNone_delegate, null);
2802 public static bool IsSpecialMethod (MethodBase mb)
2804 Type t = mb.DeclaringType;
2806 MemberInfo [] matches = TypeManager.SpecialContainerLookup (t, mb.IsStatic);
2807 if (matches == null)
2810 foreach (MemberInfo mi in matches){
2811 if (mi is PropertyBuilder){
2812 Pair p = (Pair) properties [mi];
2814 if (p.First == mb || p.Second == mb)
2816 } else if (mi is PropertyInfo){
2817 MethodInfo [] methods = ((PropertyInfo) mi).GetAccessors (true);
2819 foreach (MethodInfo m in methods){
2823 } else if (mi is MyEventBuilder){
2824 Pair p = (Pair) events [mi];
2826 if (p.First == mb || p.Second == mb)
2828 } else if (mi is EventInfo){
2829 EventInfo ei = ((EventInfo) mi);
2831 if (ei.GetAddMethod (true) == mb)
2834 if (ei.GetRemoveMethod (true) == mb)
2837 if (ei.GetRaiseMethod (true) == mb)
2843 // Now check if it is an operator method
2847 if (s.StartsWith ("op_")){
2848 foreach (string name in Unary.oper_names){
2853 foreach (string name in Binary.oper_names){
2867 /// There is exactly one instance of this class per type.
2869 public sealed class TypeHandle : IMemberContainer {
2870 public readonly TypeHandle BaseType;
2872 readonly int id = ++next_id;
2873 static int next_id = 0;
2876 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2877 /// a TypeHandle yet, a new instance of it is created. This static method
2878 /// ensures that we'll only have one TypeHandle instance per type.
2880 public static TypeHandle GetTypeHandle (Type t)
2882 TypeHandle handle = (TypeHandle) type_hash [t];
2886 handle = new TypeHandle (t);
2887 type_hash.Add (t, handle);
2891 public static void CleanUp ()
2897 /// Returns the TypeHandle for TypeManager.object_type.
2899 public static IMemberContainer ObjectType {
2901 if (object_type != null)
2904 object_type = GetTypeHandle (TypeManager.object_type);
2911 /// Returns the TypeHandle for TypeManager.array_type.
2913 public static IMemberContainer ArrayType {
2915 if (array_type != null)
2918 array_type = GetTypeHandle (TypeManager.array_type);
2924 private static PtrHashtable type_hash = new PtrHashtable ();
2926 private static TypeHandle object_type = null;
2927 private static TypeHandle array_type = null;
2930 private bool is_interface;
2931 private MemberCache member_cache;
2933 private TypeHandle (Type type)
2936 if (type.BaseType != null)
2937 BaseType = GetTypeHandle (type.BaseType);
2938 this.is_interface = type.IsInterface;
2939 this.member_cache = new MemberCache (this);
2942 // IMemberContainer methods
2944 public string Name {
2946 return type.FullName;
2956 public IMemberContainer Parent {
2962 public bool IsInterface {
2964 return is_interface;
2968 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
2970 MemberInfo [] members;
2971 if (mt == MemberTypes.Event)
2972 members = type.GetEvents (bf | BindingFlags.DeclaredOnly);
2974 members = type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
2976 Array.Reverse (members);
2978 return new MemberList (members);
2981 // IMemberFinder methods
2983 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
2984 MemberFilter filter, object criteria)
2986 return new MemberList (member_cache.FindMembers (mt, bf, name, filter, criteria));
2989 public MemberCache MemberCache {
2991 return member_cache;
2995 public override string ToString ()
2997 if (BaseType != null)
2998 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
3000 return "TypeHandle (" + id + "," + Name + ")";