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 default_member_type;
67 static public Type iasyncresult_type;
68 static public Type asynccallback_type;
69 static public Type intptr_type;
70 static public Type monitor_type;
71 static public Type runtime_field_handle_type;
72 static public Type attribute_type;
73 static public Type attribute_usage_type;
74 static public Type dllimport_type;
75 static public Type unverifiable_code_type;
76 static public Type methodimpl_attr_type;
77 static public Type marshal_as_attr_type;
78 static public Type param_array_type;
79 static public Type guid_attr_type;
80 static public Type void_ptr_type;
81 static public Type indexer_name_type;
82 static public Type exception_type;
83 static public Type invalid_operation_exception_type;
84 static public object obsolete_attribute_type;
85 static public object conditional_attribute_type;
86 static public Type in_attribute_type;
87 static public Type cls_compliant_attribute_type;
88 static public Type typed_reference_type;
89 static public Type arg_iterator_type;
90 static public Type mbr_type;
93 // An empty array of types
95 static public Type [] NoTypes;
96 static public TypeExpr [] NoTypeExprs;
100 // Expressions representing the internal types. Used during declaration
103 static public TypeExpr system_object_expr, system_string_expr;
104 static public TypeExpr system_boolean_expr, system_decimal_expr;
105 static public TypeExpr system_single_expr, system_double_expr;
106 static public TypeExpr system_sbyte_expr, system_byte_expr;
107 static public TypeExpr system_int16_expr, system_uint16_expr;
108 static public TypeExpr system_int32_expr, system_uint32_expr;
109 static public TypeExpr system_int64_expr, system_uint64_expr;
110 static public TypeExpr system_char_expr, system_void_expr;
111 static public TypeExpr system_asynccallback_expr;
112 static public TypeExpr system_iasyncresult_expr;
113 static public TypeExpr system_valuetype_expr;
116 // This is only used when compiling corlib
118 static public Type system_int32_type;
119 static public Type system_array_type;
120 static public Type system_type_type;
121 static public Type system_assemblybuilder_type;
122 static public MethodInfo system_int_array_get_length;
123 static public MethodInfo system_int_array_get_rank;
124 static public MethodInfo system_object_array_clone;
125 static public MethodInfo system_int_array_get_length_int;
126 static public MethodInfo system_int_array_get_lower_bound_int;
127 static public MethodInfo system_int_array_get_upper_bound_int;
128 static public MethodInfo system_void_array_copyto_array_int;
132 // Internal, not really used outside
134 static Type runtime_helpers_type;
137 // These methods are called by code generated by the compiler
139 static public MethodInfo string_concat_string_string;
140 static public MethodInfo string_concat_string_string_string;
141 static public MethodInfo string_concat_string_string_string_string;
142 static public MethodInfo string_concat_string_dot_dot_dot;
143 static public MethodInfo string_concat_object_object;
144 static public MethodInfo string_concat_object_object_object;
145 static public MethodInfo string_concat_object_dot_dot_dot;
146 static public MethodInfo string_isinterneted_string;
147 static public MethodInfo system_type_get_type_from_handle;
148 static public MethodInfo object_getcurrent_void;
149 static public MethodInfo bool_movenext_void;
150 static public MethodInfo ienumerable_getenumerator_void;
151 static public MethodInfo void_reset_void;
152 static public MethodInfo void_dispose_void;
153 static public MethodInfo void_monitor_enter_object;
154 static public MethodInfo void_monitor_exit_object;
155 static public MethodInfo void_initializearray_array_fieldhandle;
156 static public MethodInfo int_getlength_int;
157 static public MethodInfo delegate_combine_delegate_delegate;
158 static public MethodInfo delegate_remove_delegate_delegate;
159 static public MethodInfo int_get_offset_to_string_data;
160 static public MethodInfo int_array_get_length;
161 static public MethodInfo int_array_get_rank;
162 static public MethodInfo object_array_clone;
163 static public MethodInfo int_array_get_length_int;
164 static public MethodInfo int_array_get_lower_bound_int;
165 static public MethodInfo int_array_get_upper_bound_int;
166 static public MethodInfo void_array_copyto_array_int;
169 // The attribute constructors.
171 static public ConstructorInfo object_ctor;
172 static public ConstructorInfo cons_param_array_attribute;
173 static public ConstructorInfo void_decimal_ctor_five_args;
174 static public ConstructorInfo unverifiable_code_ctor;
175 static public ConstructorInfo invalid_operation_ctor;
178 // Holds the Array of Assemblies that have been loaded
179 // (either because it is the default or the user used the
180 // -r command line option)
182 static Assembly [] assemblies;
185 // Keeps a list of modules. We used this to do lookups
186 // on the module using GetType -- needed for arrays
188 static Module [] modules;
191 // This is the type_cache from the assemblies to avoid
192 // hitting System.Reflection on every lookup.
194 static Hashtable types;
197 // This is used to hotld the corresponding TypeContainer objects
198 // since we need this in FindMembers
200 static Hashtable typecontainers;
203 // Keeps track of those types that are defined by the
206 static ArrayList user_types;
208 static PtrHashtable builder_to_declspace;
211 // Tracks the interfaces implemented by typebuilders. We only
212 // enter those who do implement or or more interfaces
214 static PtrHashtable builder_to_ifaces;
217 // Maps MethodBase.RuntimeTypeHandle to a Type array that contains
218 // the arguments to the method
220 static Hashtable method_arguments;
223 // Maps PropertyBuilder to a Type array that contains
224 // the arguments to the indexer
226 static Hashtable indexer_arguments;
229 // Maybe `method_arguments' should be replaced and only
230 // method_internal_params should be kept?
232 static Hashtable method_internal_params;
235 // Keeps track of attribute types
238 static Hashtable builder_to_attr;
241 // Keeps track of methods
244 static Hashtable builder_to_method;
247 // Contains all public types from referenced assemblies.
248 // This member is used only if CLS Compliance verification is required.
250 public static Hashtable all_imported_types;
257 public static void CleanUp ()
259 // Lets get everything clean so that we can collect before generating code
263 typecontainers = null;
265 builder_to_declspace = null;
266 builder_to_ifaces = null;
267 method_arguments = null;
268 indexer_arguments = null;
269 method_internal_params = null;
270 builder_to_attr = null;
271 builder_to_method = null;
275 negative_hits = null;
276 attr_to_allowmult = null;
277 builder_to_constant = null;
278 fieldbuilders_to_fields = null;
280 priv_fields_events = null;
283 TypeHandle.CleanUp ();
287 /// A filter for Findmembers that uses the Signature object to
290 static bool SignatureFilter (MemberInfo mi, object criteria)
292 Signature sig = (Signature) criteria;
294 if (!(mi is MethodBase))
297 if (mi.Name != sig.name)
300 int count = sig.args.Length;
302 if (mi is MethodBuilder || mi is ConstructorBuilder){
303 Type [] candidate_args = GetArgumentTypes ((MethodBase) mi);
305 if (candidate_args.Length != count)
308 for (int i = 0; i < count; i++)
309 if (candidate_args [i] != sig.args [i])
314 ParameterInfo [] pars = ((MethodBase) mi).GetParameters ();
316 if (pars.Length != count)
319 for (int i = 0; i < count; i++)
320 if (pars [i].ParameterType != sig.args [i])
326 // A delegate that points to the filter above.
327 static MemberFilter signature_filter;
330 // These are expressions that represent some of the internal data types, used
333 static void InitExpressionTypes ()
335 system_object_expr = new TypeLookupExpression ("System.Object");
336 system_string_expr = new TypeLookupExpression ("System.String");
337 system_boolean_expr = new TypeLookupExpression ("System.Boolean");
338 system_decimal_expr = new TypeLookupExpression ("System.Decimal");
339 system_single_expr = new TypeLookupExpression ("System.Single");
340 system_double_expr = new TypeLookupExpression ("System.Double");
341 system_sbyte_expr = new TypeLookupExpression ("System.SByte");
342 system_byte_expr = new TypeLookupExpression ("System.Byte");
343 system_int16_expr = new TypeLookupExpression ("System.Int16");
344 system_uint16_expr = new TypeLookupExpression ("System.UInt16");
345 system_int32_expr = new TypeLookupExpression ("System.Int32");
346 system_uint32_expr = new TypeLookupExpression ("System.UInt32");
347 system_int64_expr = new TypeLookupExpression ("System.Int64");
348 system_uint64_expr = new TypeLookupExpression ("System.UInt64");
349 system_char_expr = new TypeLookupExpression ("System.Char");
350 system_void_expr = new TypeLookupExpression ("System.Void");
351 system_asynccallback_expr = new TypeLookupExpression ("System.AsyncCallback");
352 system_iasyncresult_expr = new TypeLookupExpression ("System.IAsyncResult");
353 system_valuetype_expr = new TypeLookupExpression ("System.ValueType");
356 static TypeManager ()
358 assemblies = new Assembly [0];
360 user_types = new ArrayList ();
362 types = new Hashtable ();
363 typecontainers = new Hashtable ();
365 builder_to_declspace = new PtrHashtable ();
366 builder_to_attr = new PtrHashtable ();
367 builder_to_method = new PtrHashtable ();
368 method_arguments = new PtrHashtable ();
369 method_internal_params = new PtrHashtable ();
370 indexer_arguments = new PtrHashtable ();
371 builder_to_ifaces = new PtrHashtable ();
373 NoTypes = new Type [0];
374 NoTypeExprs = new TypeExpr [0];
376 signature_filter = new MemberFilter (SignatureFilter);
377 InitExpressionTypes ();
380 public static void HandleDuplicate (string name, Type t)
382 Type prev = (Type) types [name];
383 TypeContainer tc = builder_to_declspace [prev] as TypeContainer;
387 // This probably never happens, as we catch this before
389 Report.Error (-17, "The type `" + name + "' has already been defined.");
393 tc = builder_to_declspace [t] as TypeContainer;
396 1595, "The type `" + name + "' is defined in an existing assembly;"+
397 " Using the new definition from: " + tc.Location);
400 1595, "The type `" + name + "' is defined in an existing assembly;");
403 Report.Warning (1595, "Previously defined in: " + prev.Assembly.FullName);
409 public static void AddUserType (string name, TypeBuilder t, TypeExpr[] ifaces)
414 HandleDuplicate (name, t);
419 builder_to_ifaces [t] = ifaces;
423 // This entry point is used by types that we define under the covers
425 public static void RegisterBuilder (TypeBuilder tb, TypeExpr [] ifaces)
428 builder_to_ifaces [tb] = ifaces;
431 public static void AddUserType (string name, TypeBuilder t, TypeContainer tc, TypeExpr [] ifaces)
433 builder_to_declspace.Add (t, tc);
434 typecontainers.Add (name, tc);
435 AddUserType (name, t, ifaces);
438 public static void AddDelegateType (string name, TypeBuilder t, Delegate del)
443 HandleDuplicate (name, t);
446 builder_to_declspace.Add (t, del);
449 public static void AddEnumType (string name, TypeBuilder t, Enum en)
454 HandleDuplicate (name, t);
456 builder_to_declspace.Add (t, en);
459 public static void AddUserInterface (string name, TypeBuilder t, Interface i, TypeExpr [] ifaces)
461 AddUserType (name, t, ifaces);
462 builder_to_declspace.Add (t, i);
465 public static void AddMethod (MethodBuilder builder, MethodData method)
467 builder_to_method.Add (builder, method);
470 public static void RegisterAttrType (Type t, TypeContainer tc)
472 builder_to_attr.Add (t, tc);
476 /// Returns the DeclSpace whose Type is `t' or null if there is no
477 /// DeclSpace for `t' (ie, the Type comes from a library)
479 public static DeclSpace LookupDeclSpace (Type t)
481 return builder_to_declspace [t] as DeclSpace;
485 /// Returns the TypeContainer whose Type is `t' or null if there is no
486 /// TypeContainer for `t' (ie, the Type comes from a library)
488 public static TypeContainer LookupTypeContainer (Type t)
490 return builder_to_declspace [t] as TypeContainer;
493 public static IMemberContainer LookupMemberContainer (Type t)
495 if (t is TypeBuilder) {
496 IMemberContainer container = builder_to_declspace [t] as IMemberContainer;
497 if (container != null)
501 return TypeHandle.GetTypeHandle (t);
504 public static Interface LookupInterface (Type t)
506 return builder_to_declspace [t] as Interface;
509 public static Delegate LookupDelegate (Type t)
511 return builder_to_declspace [t] as Delegate;
514 public static Enum LookupEnum (Type t)
516 return builder_to_declspace [t] as Enum;
519 public static TypeContainer LookupAttr (Type t)
521 return (TypeContainer) builder_to_attr [t];
525 /// Registers an assembly to load types from.
527 public static void AddAssembly (Assembly a)
529 foreach (Assembly assembly in assemblies) {
534 int top = assemblies.Length;
535 Assembly [] n = new Assembly [top + 1];
537 assemblies.CopyTo (n, 0);
544 /// Registers a module builder to lookup types from
546 public static void AddModule (Module mb)
548 int top = modules != null ? modules.Length : 0;
549 Module [] n = new Module [top + 1];
552 modules.CopyTo (n, 0);
557 public static Module[] Modules {
563 static Hashtable references = new Hashtable ();
566 // Gets the reference to T version of the Type (T&)
568 public static Type GetReferenceType (Type t)
570 string tname = t.FullName + "&";
572 Type ret = t.Assembly.GetType (tname);
575 // If the type comes from the assembly we are building
576 // We need the Hashtable, because .NET 1.1 will return different instance types
577 // every time we call ModuleBuilder.GetType.
580 if (references [t] == null)
581 references [t] = CodeGen.Module.Builder.GetType (tname);
582 ret = (Type) references [t];
588 static Hashtable pointers = new Hashtable ();
591 // Gets the pointer to T version of the Type (T*)
593 public static Type GetPointerType (Type t)
595 string tname = t.FullName + "*";
597 Type ret = t.Assembly.GetType (tname);
600 // If the type comes from the assembly we are building
601 // We need the Hashtable, because .NET 1.1 will return different instance types
602 // every time we call ModuleBuilder.GetType.
605 if (pointers [t] == null)
606 pointers [t] = CodeGen.Module.Builder.GetType (tname);
608 ret = (Type) pointers [t];
615 // Low-level lookup, cache-less
617 static Type LookupTypeReflection (string name)
621 foreach (Assembly a in assemblies){
622 t = a.GetType (name);
627 TypeAttributes ta = t.Attributes & TypeAttributes.VisibilityMask;
628 if (ta == TypeAttributes.NotPublic ||
629 ta == TypeAttributes.NestedPrivate ||
630 ta == TypeAttributes.NestedAssembly ||
631 ta == TypeAttributes.NestedFamANDAssem){
634 // In .NET pointers turn out to be private, even if their
635 // element type is not
638 t = t.GetElementType ();
648 foreach (Module mb in modules) {
649 t = mb.GetType (name);
657 static Hashtable negative_hits = new Hashtable ();
660 // This function is used when you want to avoid the lookups, and want to go
661 // directly to the source. This will use the cache.
663 // Notice that bypassing the cache is bad, because on Microsoft.NET runtime
664 // GetType ("DynamicType[]") != GetType ("DynamicType[]"), and there is no
665 // way to test things other than doing a fullname compare
667 public static Type LookupTypeDirect (string name)
669 Type t = (Type) types [name];
673 t = LookupTypeReflection (name);
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 (0);
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 monitor_type = CoreLookupType ("System.Threading.Monitor");
1038 intptr_type = CoreLookupType ("System.IntPtr");
1040 attribute_type = CoreLookupType ("System.Attribute");
1041 attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
1042 dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
1043 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
1044 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
1045 param_array_type = CoreLookupType ("System.ParamArrayAttribute");
1046 in_attribute_type = CoreLookupType ("System.Runtime.InteropServices.InAttribute");
1047 typed_reference_type = CoreLookupType ("System.TypedReference");
1048 arg_iterator_type = CoreLookupType ("System.ArgIterator");
1049 mbr_type = CoreLookupType ("System.MarshalByRefObject");
1052 // Sigh. Remove this before the release. Wonder what versions of Mono
1053 // people are running.
1055 guid_attr_type = LookupType ("System.Runtime.InteropServices.GuidAttribute");
1057 unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
1059 void_ptr_type = CoreLookupType ("System.Void*");
1061 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
1063 exception_type = CoreLookupType ("System.Exception");
1064 invalid_operation_exception_type = CoreLookupType ("System.InvalidOperationException");
1069 obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
1070 conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
1071 cls_compliant_attribute_type = CoreLookupType ("System.CLSCompliantAttribute");
1074 // When compiling corlib, store the "real" types here.
1076 if (!RootContext.StdLib) {
1077 system_int32_type = typeof (System.Int32);
1078 system_array_type = typeof (System.Array);
1079 system_type_type = typeof (System.Type);
1080 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
1082 Type [] void_arg = { };
1083 system_int_array_get_length = GetMethod (
1084 system_array_type, "get_Length", void_arg);
1085 system_int_array_get_rank = GetMethod (
1086 system_array_type, "get_Rank", void_arg);
1087 system_object_array_clone = GetMethod (
1088 system_array_type, "Clone", void_arg);
1090 Type [] system_int_arg = { system_int32_type };
1091 system_int_array_get_length_int = GetMethod (
1092 system_array_type, "GetLength", system_int_arg);
1093 system_int_array_get_upper_bound_int = GetMethod (
1094 system_array_type, "GetUpperBound", system_int_arg);
1095 system_int_array_get_lower_bound_int = GetMethod (
1096 system_array_type, "GetLowerBound", system_int_arg);
1098 Type [] system_array_int_arg = { system_array_type, system_int32_type };
1099 system_void_array_copyto_array_int = GetMethod (
1100 system_array_type, "CopyTo", system_array_int_arg);
1102 Type [] system_3_type_arg = {
1103 system_type_type, system_type_type, system_type_type };
1104 Type [] system_4_type_arg = {
1105 system_type_type, system_type_type, system_type_type, system_type_type };
1107 MethodInfo set_corlib_type_builders = GetMethod (
1108 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1109 system_4_type_arg, true, false);
1111 if (set_corlib_type_builders != null) {
1112 object[] args = new object [4];
1113 args [0] = object_type;
1114 args [1] = value_type;
1115 args [2] = enum_type;
1116 args [3] = void_type;
1118 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1120 // Compatibility for an older version of the class libs.
1121 set_corlib_type_builders = GetMethod (
1122 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1123 system_3_type_arg, true, true);
1125 if (set_corlib_type_builders == null) {
1126 Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
1130 object[] args = new object [3];
1131 args [0] = object_type;
1132 args [1] = value_type;
1133 args [2] = enum_type;
1135 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1139 system_object_expr.Type = object_type;
1140 system_string_expr.Type = string_type;
1141 system_boolean_expr.Type = bool_type;
1142 system_decimal_expr.Type = decimal_type;
1143 system_single_expr.Type = float_type;
1144 system_double_expr.Type = double_type;
1145 system_sbyte_expr.Type = sbyte_type;
1146 system_byte_expr.Type = byte_type;
1147 system_int16_expr.Type = short_type;
1148 system_uint16_expr.Type = ushort_type;
1149 system_int32_expr.Type = int32_type;
1150 system_uint32_expr.Type = uint32_type;
1151 system_int64_expr.Type = int64_type;
1152 system_uint64_expr.Type = uint64_type;
1153 system_char_expr.Type = char_type;
1154 system_void_expr.Type = void_type;
1155 system_asynccallback_expr.Type = asynccallback_type;
1156 system_iasyncresult_expr.Type = iasyncresult_type;
1157 system_valuetype_expr.Type = value_type;
1161 // The helper methods that are used by the compiler
1163 public static void InitCodeHelpers ()
1166 // Now load the default methods that we use.
1168 Type [] string_string = { string_type, string_type };
1169 string_concat_string_string = GetMethod (
1170 string_type, "Concat", string_string);
1171 Type [] string_string_string = { string_type, string_type, string_type };
1172 string_concat_string_string_string = GetMethod (
1173 string_type, "Concat", string_string_string);
1174 Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
1175 string_concat_string_string_string_string = GetMethod (
1176 string_type, "Concat", string_string_string_string);
1177 Type[] params_string = { TypeManager.LookupType ("System.String[]") };
1178 string_concat_string_dot_dot_dot = GetMethod (
1179 string_type, "Concat", params_string);
1181 Type [] object_object = { object_type, object_type };
1182 string_concat_object_object = GetMethod (
1183 string_type, "Concat", object_object);
1184 Type [] object_object_object = { object_type, object_type, object_type };
1185 string_concat_object_object_object = GetMethod (
1186 string_type, "Concat", object_object_object);
1187 Type[] params_object = { TypeManager.LookupType ("System.Object[]") };
1188 string_concat_object_dot_dot_dot = GetMethod (
1189 string_type, "Concat", params_object);
1191 Type [] string_ = { string_type };
1192 string_isinterneted_string = GetMethod (
1193 string_type, "IsInterned", string_);
1195 Type [] runtime_type_handle = { runtime_handle_type };
1196 system_type_get_type_from_handle = GetMethod (
1197 type_type, "GetTypeFromHandle", runtime_type_handle);
1199 Type [] delegate_delegate = { delegate_type, delegate_type };
1200 delegate_combine_delegate_delegate = GetMethod (
1201 delegate_type, "Combine", delegate_delegate);
1203 delegate_remove_delegate_delegate = GetMethod (
1204 delegate_type, "Remove", delegate_delegate);
1209 Type [] void_arg = { };
1210 object_getcurrent_void = GetMethod (
1211 ienumerator_type, "get_Current", void_arg);
1212 bool_movenext_void = GetMethod (
1213 ienumerator_type, "MoveNext", void_arg);
1214 void_reset_void = GetMethod (
1215 ienumerator_type, "Reset", void_arg);
1216 void_dispose_void = GetMethod (
1217 idisposable_type, "Dispose", void_arg);
1218 int_get_offset_to_string_data = GetMethod (
1219 runtime_helpers_type, "get_OffsetToStringData", void_arg);
1220 int_array_get_length = GetMethod (
1221 array_type, "get_Length", void_arg);
1222 int_array_get_rank = GetMethod (
1223 array_type, "get_Rank", void_arg);
1224 ienumerable_getenumerator_void = GetMethod (
1225 ienumerable_type, "GetEnumerator", void_arg);
1230 Type [] int_arg = { int32_type };
1231 int_array_get_length_int = GetMethod (
1232 array_type, "GetLength", int_arg);
1233 int_array_get_upper_bound_int = GetMethod (
1234 array_type, "GetUpperBound", int_arg);
1235 int_array_get_lower_bound_int = GetMethod (
1236 array_type, "GetLowerBound", int_arg);
1239 // System.Array methods
1241 object_array_clone = GetMethod (
1242 array_type, "Clone", void_arg);
1243 Type [] array_int_arg = { array_type, int32_type };
1244 void_array_copyto_array_int = GetMethod (
1245 array_type, "CopyTo", array_int_arg);
1250 Type [] object_arg = { object_type };
1251 void_monitor_enter_object = GetMethod (
1252 monitor_type, "Enter", object_arg);
1253 void_monitor_exit_object = GetMethod (
1254 monitor_type, "Exit", object_arg);
1256 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1258 void_initializearray_array_fieldhandle = GetMethod (
1259 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1264 int_getlength_int = GetMethod (
1265 array_type, "GetLength", int_arg);
1268 // Decimal constructors
1270 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1271 void_decimal_ctor_five_args = GetConstructor (
1272 decimal_type, dec_arg);
1277 cons_param_array_attribute = GetConstructor (
1278 param_array_type, void_arg);
1280 unverifiable_code_ctor = GetConstructor (
1281 unverifiable_code_type, void_arg);
1284 // InvalidOperationException
1286 invalid_operation_ctor = GetConstructor (
1287 invalid_operation_exception_type, void_arg);
1291 object_ctor = GetConstructor (object_type, void_arg);
1295 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1298 /// This is the "old", non-cache based FindMembers() function. We cannot use
1299 /// the cache here because there is no member name argument.
1301 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1302 MemberFilter filter, object criteria)
1304 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1307 // `builder_to_declspace' contains all dynamic types.
1311 Timer.StartTimer (TimerType.FindMembers);
1312 list = decl.FindMembers (mt, bf, filter, criteria);
1313 Timer.StopTimer (TimerType.FindMembers);
1318 // We have to take care of arrays specially, because GetType on
1319 // a TypeBuilder array will return a Type, not a TypeBuilder,
1320 // and we can not call FindMembers on this type.
1322 if (t.IsSubclassOf (TypeManager.array_type))
1323 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1326 // Since FindMembers will not lookup both static and instance
1327 // members, we emulate this behaviour here.
1329 if ((bf & instance_and_static) == instance_and_static){
1330 MemberInfo [] i_members = t.FindMembers (
1331 mt, bf & ~BindingFlags.Static, filter, criteria);
1333 int i_len = i_members.Length;
1335 MemberInfo one = i_members [0];
1338 // If any of these are present, we are done!
1340 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1341 return new MemberList (i_members);
1344 MemberInfo [] s_members = t.FindMembers (
1345 mt, bf & ~BindingFlags.Instance, filter, criteria);
1347 int s_len = s_members.Length;
1348 if (i_len > 0 || s_len > 0)
1349 return new MemberList (i_members, s_members);
1352 return new MemberList (i_members);
1354 return new MemberList (s_members);
1358 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1363 /// This method is only called from within MemberLookup. It tries to use the member
1364 /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
1365 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1366 /// our return value will already contain all inherited members and the caller don't need
1367 /// to check base classes and interfaces anymore.
1369 private static MemberInfo [] MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1370 string name, out bool used_cache)
1373 // We have to take care of arrays specially, because GetType on
1374 // a TypeBuilder array will return a Type, not a TypeBuilder,
1375 // and we can not call FindMembers on this type.
1377 if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
1379 return TypeHandle.ArrayType.MemberCache.FindMembers (
1380 mt, bf, name, FilterWithClosure_delegate, null);
1384 // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
1385 // and we can ask the DeclSpace for the MemberCache.
1387 if (t is TypeBuilder) {
1388 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1389 MemberCache cache = decl.MemberCache;
1392 // If this DeclSpace has a MemberCache, use it.
1395 if (cache != null) {
1397 return cache.FindMembers (
1398 mt, bf, name, FilterWithClosure_delegate, null);
1401 // If there is no MemberCache, we need to use the "normal" FindMembers.
1402 // Note, this is a VERY uncommon route!
1405 Timer.StartTimer (TimerType.FindMembers);
1406 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
1407 FilterWithClosure_delegate, name);
1408 Timer.StopTimer (TimerType.FindMembers);
1411 return (MemberInfo []) list;
1415 // This call will always succeed. There is exactly one TypeHandle instance per
1416 // type, TypeHandle.GetTypeHandle() will either return it or create a new one
1417 // if it didn't already exist.
1419 TypeHandle handle = TypeHandle.GetTypeHandle (t);
1422 return handle.MemberCache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1425 public static bool IsBuiltinType (Type t)
1427 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1428 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1429 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1430 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
1436 public static bool IsBuiltinType (TypeContainer tc)
1438 return IsBuiltinType (tc.TypeBuilder);
1442 // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
1443 // the pieces in the code where we use IsBuiltinType and special case decimal_type.
1445 public static bool IsCLRType (Type t)
1447 if (t == object_type || t == int32_type || t == uint32_type ||
1448 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1449 t == char_type || t == short_type || t == bool_type ||
1450 t == sbyte_type || t == byte_type || t == ushort_type)
1456 public static bool IsDelegateType (Type t)
1458 if (t.IsSubclassOf (TypeManager.delegate_type))
1464 public static bool IsEnumType (Type t)
1466 if (t == TypeManager.enum_type || t.IsSubclassOf (TypeManager.enum_type))
1471 public static bool IsBuiltinOrEnum (Type t)
1473 if (IsBuiltinType (t))
1483 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1485 public static bool IsUnmanagedType (Type t)
1487 if (IsBuiltinType (t) && t != TypeManager.string_type)
1496 if (IsValueType (t)){
1497 if (t is TypeBuilder){
1498 TypeContainer tc = LookupTypeContainer (t);
1500 if (tc.Fields != null){
1501 foreach (Field f in tc.Fields){
1502 if (f.FieldBuilder.IsStatic)
1504 if (!IsUnmanagedType (f.FieldBuilder.FieldType))
1510 FieldInfo [] fields = t.GetFields ();
1512 foreach (FieldInfo f in fields){
1515 if (!IsUnmanagedType (f.FieldType))
1525 public static bool IsValueType (Type t)
1527 if (t.IsSubclassOf (TypeManager.value_type) && (t != TypeManager.enum_type))
1533 public static bool IsInterfaceType (Type t)
1535 Interface iface = builder_to_declspace [t] as Interface;
1544 // Checks whether `type' is a subclass or nested child of `parent'.
1546 public static bool IsSubclassOrNestedChildOf (Type type, Type parent)
1549 if ((type == parent) || type.IsSubclassOf (parent))
1552 // Handle nested types.
1553 type = type.DeclaringType;
1554 } while (type != null);
1560 // Checks whether `type' is a nested child of `parent'.
1562 public static bool IsNestedChildOf (Type type, Type parent)
1567 type = type.DeclaringType;
1568 while (type != null) {
1572 type = type.DeclaringType;
1579 // Do the right thing when returning the element type of an
1580 // array type based on whether we are compiling corlib or not
1582 public static Type GetElementType (Type t)
1584 if (RootContext.StdLib)
1585 return t.GetElementType ();
1587 return TypeToCoreType (t.GetElementType ());
1591 /// Returns the User Defined Types
1593 public static ArrayList UserTypes {
1599 public static Hashtable TypeContainers {
1601 return typecontainers;
1605 static Hashtable attr_to_allowmult;
1607 public static void RegisterAttributeAllowMultiple (Type attr_type, bool allow)
1609 if (attr_to_allowmult == null)
1610 attr_to_allowmult = new PtrHashtable ();
1612 if (attr_to_allowmult.Contains (attr_type))
1615 attr_to_allowmult.Add (attr_type, allow);
1619 public static bool AreMultipleAllowed (Type attr_type)
1621 if (!(attr_type is TypeBuilder)) {
1622 System.Attribute [] attrs = System.Attribute.GetCustomAttributes (attr_type);
1624 foreach (System.Attribute tmp in attrs)
1625 if (tmp is AttributeUsageAttribute) {
1626 return ((AttributeUsageAttribute) tmp).AllowMultiple;
1632 if (attr_to_allowmult == null)
1635 return (bool) attr_to_allowmult [attr_type];
1638 static Hashtable builder_to_constant;
1640 public static void RegisterConstant (FieldBuilder fb, Const c)
1642 if (builder_to_constant == null)
1643 builder_to_constant = new PtrHashtable ();
1645 if (builder_to_constant.Contains (fb))
1648 builder_to_constant.Add (fb, c);
1651 public static Const LookupConstant (FieldBuilder fb)
1653 if (builder_to_constant == null)
1656 return (Const) builder_to_constant [fb];
1660 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1664 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1665 /// for anything which is dynamic, and we need this in a number of places,
1666 /// we register this information here, and use it afterwards.
1668 static public bool RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1673 method_arguments.Add (mb, args);
1674 method_internal_params.Add (mb, ip);
1679 static public InternalParameters LookupParametersByBuilder (MethodBase mb)
1681 if (! (mb is ConstructorBuilder || mb is MethodBuilder))
1684 if (method_internal_params.Contains (mb))
1685 return (InternalParameters) method_internal_params [mb];
1687 throw new Exception ("Argument for Method not registered" + mb);
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 if (method_arguments.Contains (mb))
1700 return (Type []) method_arguments [mb];
1702 ParameterInfo [] pi = mb.GetParameters ();
1704 Type [] types = new Type [c];
1706 for (int i = 0; i < c; i++)
1707 types [i] = pi [i].ParameterType;
1709 method_arguments.Add (mb, types);
1715 /// Returns the argument types for an indexer based on its PropertyInfo
1717 /// For dynamic indexers, we use the compiler provided types, for
1718 /// indexers from existing assemblies we load them from GetParameters,
1719 /// and insert them into the cache
1721 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1723 if (indexer_arguments.Contains (indexer))
1724 return (Type []) indexer_arguments [indexer];
1725 else if (indexer is PropertyBuilder)
1726 // If we're a PropertyBuilder and not in the
1727 // `indexer_arguments' hash, then we're a property and
1731 ParameterInfo [] pi = indexer.GetIndexParameters ();
1732 // Property, not an indexer.
1736 Type [] types = new Type [c];
1738 for (int i = 0; i < c; i++)
1739 types [i] = pi [i].ParameterType;
1741 indexer_arguments.Add (indexer, types);
1747 // This is a workaround the fact that GetValue is not
1748 // supported for dynamic types
1750 static Hashtable fields = new Hashtable ();
1751 static public bool RegisterFieldValue (FieldBuilder fb, object value)
1753 if (fields.Contains (fb))
1756 fields.Add (fb, value);
1761 static public object GetValue (FieldBuilder fb)
1766 static Hashtable fieldbuilders_to_fields = new Hashtable ();
1767 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1769 if (fieldbuilders_to_fields.Contains (fb))
1772 fieldbuilders_to_fields.Add (fb, f);
1777 // The return value can be null; This will be the case for
1778 // auxiliary FieldBuilders created by the compiler that have no
1779 // real field being declared on the source code
1781 static public FieldBase GetField (FieldInfo fb)
1783 return (FieldBase) fieldbuilders_to_fields [fb];
1786 static Hashtable events;
1788 static public bool RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1791 events = new Hashtable ();
1793 if (events.Contains (eb))
1796 events.Add (eb, new Pair (add, remove));
1801 static public MethodInfo GetAddMethod (EventInfo ei)
1803 if (ei is MyEventBuilder) {
1804 Pair pair = (Pair) events [ei];
1806 return (MethodInfo) pair.First;
1808 return ei.GetAddMethod ();
1811 static public MethodInfo GetRemoveMethod (EventInfo ei)
1813 if (ei is MyEventBuilder) {
1814 Pair pair = (Pair) events [ei];
1816 return (MethodInfo) pair.Second;
1818 return ei.GetRemoveMethod ();
1821 static Hashtable priv_fields_events;
1823 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1825 if (priv_fields_events == null)
1826 priv_fields_events = new Hashtable ();
1828 if (priv_fields_events.Contains (einfo))
1831 priv_fields_events.Add (einfo, builder);
1836 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1838 if (priv_fields_events == null)
1841 return (MemberInfo) priv_fields_events [ei];
1844 static Hashtable properties;
1846 static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase set)
1848 if (properties == null)
1849 properties = new Hashtable ();
1851 if (properties.Contains (pb))
1854 properties.Add (pb, new Pair (get, set));
1859 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get,
1860 MethodBase set, Type[] args)
1862 if (!RegisterProperty (pb, get,set))
1865 indexer_arguments.Add (pb, args);
1870 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen)
1872 Hashtable hash = new Hashtable ();
1873 return CheckStructCycles (tc, seen, hash);
1876 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen,
1879 if (!(tc is Struct) || IsBuiltinType (tc))
1883 // `seen' contains all types we've already visited.
1885 if (seen.Contains (tc))
1887 seen.Add (tc, null);
1890 // `hash' contains all types in the current path.
1892 hash.Add (tc, null);
1894 if (tc.Fields == null)
1897 foreach (Field field in tc.Fields) {
1898 if (field.FieldBuilder.IsStatic)
1901 Type ftype = field.FieldBuilder.FieldType;
1902 TypeContainer ftc = LookupTypeContainer (ftype);
1906 if (hash.Contains (ftc)) {
1907 Report.Error (523, tc.Location,
1908 "Struct member `{0}.{1}' of type `{2}' " +
1909 "causes a cycle in the struct layout",
1910 tc.Name, field.Name, ftc.Name);
1914 if (!CheckStructCycles (ftc, seen, hash))
1922 /// Given an array of interface types, expand and eliminate repeated ocurrences
1923 /// of an interface.
1927 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
1930 public static TypeExpr[] ExpandInterfaces (TypeExpr [] base_interfaces)
1932 ArrayList new_ifaces = new ArrayList ();
1934 foreach (TypeExpr iface in base_interfaces){
1935 if (!new_ifaces.Contains (iface))
1936 new_ifaces.Add (iface);
1938 TypeExpr [] implementing = iface.GetInterfaces ();
1940 foreach (TypeExpr imp in implementing){
1941 if (!new_ifaces.Contains (imp))
1942 new_ifaces.Add (imp);
1945 TypeExpr [] ret = new TypeExpr [new_ifaces.Count];
1946 new_ifaces.CopyTo (ret, 0);
1950 static PtrHashtable iface_cache = new PtrHashtable ();
1953 /// This function returns the interfaces in the type `t'. Works with
1954 /// both types and TypeBuilders.
1956 public static TypeExpr [] GetInterfaces (Type t)
1959 TypeExpr [] cached = iface_cache [t] as TypeExpr [];
1964 // The reason for catching the Array case is that Reflection.Emit
1965 // will not return a TypeBuilder for Array types of TypeBuilder types,
1966 // but will still throw an exception if we try to call GetInterfaces
1969 // Since the array interfaces are always constant, we return those for
1974 t = TypeManager.array_type;
1976 if (t is TypeBuilder){
1977 TypeExpr [] parent_ifaces;
1979 if (t.BaseType == null)
1980 parent_ifaces = NoTypeExprs;
1982 parent_ifaces = GetInterfaces (t.BaseType);
1983 TypeExpr [] type_ifaces = (TypeExpr []) builder_to_ifaces [t];
1984 if (type_ifaces == null)
1985 type_ifaces = NoTypeExprs;
1987 int parent_count = parent_ifaces.Length;
1988 TypeExpr [] result = new TypeExpr [parent_count + type_ifaces.Length];
1989 parent_ifaces.CopyTo (result, 0);
1990 type_ifaces.CopyTo (result, parent_count);
1992 iface_cache [t] = result;
1995 Type [] ifaces = t.GetInterfaces ();
1996 if (ifaces.Length == 0)
1999 TypeExpr [] result = new TypeExpr [ifaces.Length];
2000 for (int i = 0; i < ifaces.Length; i++)
2001 result [i] = new TypeExpression (ifaces [i], Location.Null);
2003 iface_cache [t] = result;
2009 // gets the interfaces that are declared explicitly on t
2011 public static TypeExpr [] GetExplicitInterfaces (TypeBuilder t)
2013 return (TypeExpr []) builder_to_ifaces [t];
2017 /// The following is used to check if a given type implements an interface.
2018 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
2020 public static bool ImplementsInterface (Type t, Type iface)
2022 TypeExpr [] interfaces;
2025 // FIXME OPTIMIZATION:
2026 // as soon as we hit a non-TypeBuiler in the interface
2027 // chain, we could return, as the `Type.GetInterfaces'
2028 // will return all the interfaces implement by the type
2032 interfaces = GetInterfaces (t);
2034 if (interfaces != null){
2035 foreach (TypeExpr i in interfaces){
2036 if (i.Type == iface)
2042 } while (t != null);
2047 static NumberFormatInfo nf_provider = CultureInfo.CurrentCulture.NumberFormat;
2049 // This is a custom version of Convert.ChangeType() which works
2050 // with the TypeBuilder defined types when compiling corlib.
2051 public static object ChangeType (object value, Type conversionType, out bool error)
2053 IConvertible convert_value = value as IConvertible;
2055 if (convert_value == null){
2061 // We must use Type.Equals() here since `conversionType' is
2062 // the TypeBuilder created version of a system type and not
2063 // the system type itself. You cannot use Type.GetTypeCode()
2064 // on such a type - it'd always return TypeCode.Object.
2068 if (conversionType.Equals (typeof (Boolean)))
2069 return (object)(convert_value.ToBoolean (nf_provider));
2070 else if (conversionType.Equals (typeof (Byte)))
2071 return (object)(convert_value.ToByte (nf_provider));
2072 else if (conversionType.Equals (typeof (Char)))
2073 return (object)(convert_value.ToChar (nf_provider));
2074 else if (conversionType.Equals (typeof (DateTime)))
2075 return (object)(convert_value.ToDateTime (nf_provider));
2076 else if (conversionType.Equals (typeof (Decimal)))
2077 return (object)(convert_value.ToDecimal (nf_provider));
2078 else if (conversionType.Equals (typeof (Double)))
2079 return (object)(convert_value.ToDouble (nf_provider));
2080 else if (conversionType.Equals (typeof (Int16)))
2081 return (object)(convert_value.ToInt16 (nf_provider));
2082 else if (conversionType.Equals (typeof (Int32)))
2083 return (object)(convert_value.ToInt32 (nf_provider));
2084 else if (conversionType.Equals (typeof (Int64)))
2085 return (object)(convert_value.ToInt64 (nf_provider));
2086 else if (conversionType.Equals (typeof (SByte)))
2087 return (object)(convert_value.ToSByte (nf_provider));
2088 else if (conversionType.Equals (typeof (Single)))
2089 return (object)(convert_value.ToSingle (nf_provider));
2090 else if (conversionType.Equals (typeof (String)))
2091 return (object)(convert_value.ToString (nf_provider));
2092 else if (conversionType.Equals (typeof (UInt16)))
2093 return (object)(convert_value.ToUInt16 (nf_provider));
2094 else if (conversionType.Equals (typeof (UInt32)))
2095 return (object)(convert_value.ToUInt32 (nf_provider));
2096 else if (conversionType.Equals (typeof (UInt64)))
2097 return (object)(convert_value.ToUInt64 (nf_provider));
2098 else if (conversionType.Equals (typeof (Object)))
2099 return (object)(value);
2109 // This is needed, because enumerations from assemblies
2110 // do not report their underlyingtype, but they report
2113 public static Type EnumToUnderlying (Type t)
2115 if (t == TypeManager.enum_type)
2118 t = t.UnderlyingSystemType;
2119 if (!TypeManager.IsEnumType (t))
2122 if (t is TypeBuilder) {
2123 // slow path needed to compile corlib
2124 if (t == TypeManager.bool_type ||
2125 t == TypeManager.byte_type ||
2126 t == TypeManager.sbyte_type ||
2127 t == TypeManager.char_type ||
2128 t == TypeManager.short_type ||
2129 t == TypeManager.ushort_type ||
2130 t == TypeManager.int32_type ||
2131 t == TypeManager.uint32_type ||
2132 t == TypeManager.int64_type ||
2133 t == TypeManager.uint64_type)
2135 throw new Exception ("Unhandled typecode in enum " + " from " + t.AssemblyQualifiedName);
2137 TypeCode tc = Type.GetTypeCode (t);
2140 case TypeCode.Boolean:
2141 return TypeManager.bool_type;
2143 return TypeManager.byte_type;
2144 case TypeCode.SByte:
2145 return TypeManager.sbyte_type;
2147 return TypeManager.char_type;
2148 case TypeCode.Int16:
2149 return TypeManager.short_type;
2150 case TypeCode.UInt16:
2151 return TypeManager.ushort_type;
2152 case TypeCode.Int32:
2153 return TypeManager.int32_type;
2154 case TypeCode.UInt32:
2155 return TypeManager.uint32_type;
2156 case TypeCode.Int64:
2157 return TypeManager.int64_type;
2158 case TypeCode.UInt64:
2159 return TypeManager.uint64_type;
2161 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
2165 // When compiling corlib and called with one of the core types, return
2166 // the corresponding typebuilder for that type.
2168 public static Type TypeToCoreType (Type t)
2170 if (RootContext.StdLib || (t is TypeBuilder))
2173 TypeCode tc = Type.GetTypeCode (t);
2176 case TypeCode.Boolean:
2177 return TypeManager.bool_type;
2179 return TypeManager.byte_type;
2180 case TypeCode.SByte:
2181 return TypeManager.sbyte_type;
2183 return TypeManager.char_type;
2184 case TypeCode.Int16:
2185 return TypeManager.short_type;
2186 case TypeCode.UInt16:
2187 return TypeManager.ushort_type;
2188 case TypeCode.Int32:
2189 return TypeManager.int32_type;
2190 case TypeCode.UInt32:
2191 return TypeManager.uint32_type;
2192 case TypeCode.Int64:
2193 return TypeManager.int64_type;
2194 case TypeCode.UInt64:
2195 return TypeManager.uint64_type;
2196 case TypeCode.Single:
2197 return TypeManager.float_type;
2198 case TypeCode.Double:
2199 return TypeManager.double_type;
2200 case TypeCode.String:
2201 return TypeManager.string_type;
2203 if (t == typeof (void))
2204 return TypeManager.void_type;
2205 if (t == typeof (object))
2206 return TypeManager.object_type;
2207 if (t == typeof (System.Type))
2208 return TypeManager.type_type;
2209 if (t == typeof (System.IntPtr))
2210 return TypeManager.intptr_type;
2216 /// Utility function that can be used to probe whether a type
2217 /// is managed or not.
2219 public static bool VerifyUnManaged (Type t, Location loc)
2221 if (t.IsValueType || t.IsPointer){
2223 // FIXME: this is more complex, we actually need to
2224 // make sure that the type does not contain any
2230 if (!RootContext.StdLib && (t == TypeManager.decimal_type))
2231 // We need this explicit check here to make it work when
2232 // compiling corlib.
2237 "Cannot take the address or size of a variable of a managed type ('" +
2238 CSharpName (t) + "')");
2243 /// Returns the name of the indexer in a given type.
2246 /// The default is not always `Item'. The user can change this behaviour by
2247 /// using the DefaultMemberAttribute in the class.
2249 /// For example, the String class indexer is named `Chars' not `Item'
2251 public static string IndexerPropertyName (Type t)
2253 if (t is TypeBuilder) {
2254 if (t.IsInterface) {
2255 Interface i = LookupInterface (t);
2257 if ((i == null) || (i.IndexerName == null))
2260 return i.IndexerName;
2262 TypeContainer tc = LookupTypeContainer (t);
2264 if ((tc == null) || (tc.IndexerName == null))
2267 return tc.IndexerName;
2271 System.Attribute attr = System.Attribute.GetCustomAttribute (
2272 t, TypeManager.default_member_type);
2274 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
2275 return dma.MemberName;
2281 static MethodInfo pinned_method = null;
2282 public static void MakePinned (LocalBuilder builder)
2284 if (pinned_method == null) {
2285 pinned_method = typeof (LocalBuilder).GetMethod ("MakePinned", BindingFlags.Instance | BindingFlags.NonPublic);
2286 if (pinned_method == null) {
2287 Report.Warning (-24, new Location (-1), "Microsoft.NET does not support making pinned variables." +
2288 "This code may cause errors on a runtime with a moving GC");
2294 pinned_method.Invoke (builder, null);
2299 // Returns whether the array of memberinfos contains the given method
2301 public static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
2303 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
2305 foreach (MethodBase method in array) {
2306 if (method.Name != new_method.Name)
2309 if (method is MethodInfo && new_method is MethodInfo)
2310 if (((MethodInfo) method).ReturnType != ((MethodInfo) new_method).ReturnType)
2314 Type [] old_args = TypeManager.GetArgumentTypes (method);
2315 int old_count = old_args.Length;
2318 if (new_args.Length != old_count)
2321 for (i = 0; i < old_count; i++){
2322 if (old_args [i] != new_args [i])
2335 // We copy methods from `new_members' into `target_list' if the signature
2336 // for the method from in the new list does not exist in the target_list
2338 // The name is assumed to be the same.
2340 public static ArrayList CopyNewMethods (ArrayList target_list, IList new_members)
2342 if (target_list == null){
2343 target_list = new ArrayList ();
2345 foreach (MemberInfo mi in new_members){
2346 if (mi is MethodBase)
2347 target_list.Add (mi);
2352 MemberInfo [] target_array = new MemberInfo [target_list.Count];
2353 target_list.CopyTo (target_array, 0);
2355 foreach (MemberInfo mi in new_members){
2356 MethodBase new_method = (MethodBase) mi;
2358 if (!ArrayContainsMethod (target_array, new_method))
2359 target_list.Add (new_method);
2365 public enum MethodFlags {
2367 IsObsoleteError = 1 << 1,
2368 ShouldIgnore = 1 << 2
2372 // Returns the TypeManager.MethodFlags for this method.
2373 // This emits an error 619 / warning 618 if the method is obsolete.
2374 // In the former case, TypeManager.MethodFlags.IsObsoleteError is returned.
2376 static public MethodFlags GetMethodFlags (MethodBase mb, Location loc)
2378 MethodFlags flags = 0;
2380 if (mb.DeclaringType is TypeBuilder){
2381 MethodData method = (MethodData) builder_to_method [mb];
2382 if (method == null) {
2383 // FIXME: implement Obsolete attribute on Property,
2384 // Indexer and Event.
2388 return method.GetMethodFlags (loc);
2391 object [] attrs = mb.GetCustomAttributes (true);
2392 foreach (object ta in attrs){
2393 if (!(ta is System.Attribute)){
2394 Console.WriteLine ("Unknown type in GetMethodFlags: " + ta);
2397 System.Attribute a = (System.Attribute) ta;
2398 if (a.TypeId == TypeManager.obsolete_attribute_type){
2399 ObsoleteAttribute oa = (ObsoleteAttribute) a;
2401 string method_desc = TypeManager.CSharpSignature (mb);
2404 Report.Error (619, loc, "Method `" + method_desc +
2405 "' is obsolete: `" + oa.Message + "'");
2406 return MethodFlags.IsObsoleteError;
2408 Report.Warning (618, loc, "Method `" + method_desc +
2409 "' is obsolete: `" + oa.Message + "'");
2411 flags |= MethodFlags.IsObsolete;
2417 // Skip over conditional code.
2419 if (a.TypeId == TypeManager.conditional_attribute_type){
2420 ConditionalAttribute ca = (ConditionalAttribute) a;
2422 if (RootContext.AllDefines [ca.ConditionString] == null)
2423 flags |= MethodFlags.ShouldIgnore;
2430 #region MemberLookup implementation
2433 // Whether we allow private members in the result (since FindMembers
2434 // uses NonPublic for both protected and private), we need to distinguish.
2436 static bool closure_private_ok;
2439 // Who is invoking us and which type is being queried currently.
2441 static Type closure_invocation_type;
2442 static Type closure_qualifier_type;
2445 // The assembly that defines the type is that is calling us
2447 static Assembly closure_invocation_assembly;
2449 static internal bool FilterNone (MemberInfo m, object filter_criteria)
2455 // This filter filters by name + whether it is ok to include private
2456 // members in the search
2458 static internal bool FilterWithClosure (MemberInfo m, object filter_criteria)
2461 // Hack: we know that the filter criteria will always be in the `closure'
2465 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2468 if (((closure_qualifier_type == null) || (closure_qualifier_type == closure_invocation_type)) &&
2469 (m.DeclaringType == closure_invocation_type))
2473 // Ugly: we need to find out the type of `m', and depending
2474 // on this, tell whether we accept or not
2476 if (m is MethodBase){
2477 MethodBase mb = (MethodBase) m;
2478 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2480 if (ma == MethodAttributes.Private)
2481 return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
2482 IsNestedChildOf (closure_invocation_type, m.DeclaringType);
2485 // FamAndAssem requires that we not only derivate, but we are on the
2488 if (ma == MethodAttributes.FamANDAssem){
2489 if (closure_invocation_assembly != mb.DeclaringType.Assembly)
2493 // Assembly and FamORAssem succeed if we're in the same assembly.
2494 if ((ma == MethodAttributes.Assembly) || (ma == MethodAttributes.FamORAssem)){
2495 if (closure_invocation_assembly == mb.DeclaringType.Assembly)
2499 // We already know that we aren't in the same assembly.
2500 if (ma == MethodAttributes.Assembly)
2503 // Family and FamANDAssem require that we derive.
2504 if ((ma == MethodAttributes.Family) || (ma == MethodAttributes.FamANDAssem)){
2505 if (closure_invocation_type == null)
2508 if (!IsSubclassOrNestedChildOf (closure_invocation_type, mb.DeclaringType))
2511 // Although a derived class can access protected members of its base class
2512 // it cannot do so through an instance of the base class (CS1540).
2513 if (!mb.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
2514 (closure_qualifier_type != null) &&
2515 closure_invocation_type.IsSubclassOf (closure_qualifier_type) &&
2516 !TypeManager.IsNestedChildOf (closure_invocation_type, closure_qualifier_type))
2526 if (m is FieldInfo){
2527 FieldInfo fi = (FieldInfo) m;
2528 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2530 if (fa == FieldAttributes.Private)
2531 return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
2532 IsNestedChildOf (closure_invocation_type, m.DeclaringType);
2535 // FamAndAssem requires that we not only derivate, but we are on the
2538 if (fa == FieldAttributes.FamANDAssem){
2539 if (closure_invocation_assembly != fi.DeclaringType.Assembly)
2543 // Assembly and FamORAssem succeed if we're in the same assembly.
2544 if ((fa == FieldAttributes.Assembly) || (fa == FieldAttributes.FamORAssem)){
2545 if (closure_invocation_assembly == fi.DeclaringType.Assembly)
2549 // We already know that we aren't in the same assembly.
2550 if (fa == FieldAttributes.Assembly)
2553 // Family and FamANDAssem require that we derive.
2554 if ((fa == FieldAttributes.Family) || (fa == FieldAttributes.FamANDAssem)){
2555 if (closure_invocation_type == null)
2558 if (!IsSubclassOrNestedChildOf (closure_invocation_type, fi.DeclaringType))
2561 // Although a derived class can access protected members of its base class
2562 // it cannot do so through an instance of the base class (CS1540).
2563 if (!fi.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
2564 (closure_qualifier_type != null) &&
2565 closure_invocation_type.IsSubclassOf (closure_qualifier_type) &&
2566 !TypeManager.IsNestedChildOf (closure_invocation_type, closure_qualifier_type))
2577 // EventInfos and PropertyInfos, return true because they lack permission
2578 // informaiton, so we need to check later on the methods.
2583 static MemberFilter FilterWithClosure_delegate = new MemberFilter (FilterWithClosure);
2584 static MemberFilter FilterNone_delegate = new MemberFilter (FilterNone);
2587 // Looks up a member called `name' in the `queried_type'. This lookup
2588 // is done by code that is contained in the definition for `invocation_type'
2589 // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
2591 // `invocation_type' is used to check whether we're allowed to access the requested
2592 // member wrt its protection level.
2594 // When called from MemberAccess, `qualifier_type' is the type which is used to access
2595 // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
2596 // is B and qualifier_type is A). This is used to do the CS1540 check.
2598 // When resolving a SimpleName, `qualifier_type' is null.
2600 // The `qualifier_type' is used for the CS1540 check; it's normally either null or
2601 // the same than `queried_type' - except when we're being called from BaseAccess;
2602 // in this case, `invocation_type' is the current type and `queried_type' the base
2603 // type, so this'd normally trigger a CS1540.
2605 // The binding flags are `bf' and the kind of members being looked up are `mt'
2607 // The return value always includes private members which code in `invocation_type'
2608 // is allowed to access (using the specified `qualifier_type' if given); only use
2609 // BindingFlags.NonPublic to bypass the permission check.
2611 // Returns an array of a single element for everything but Methods/Constructors
2612 // that might return multiple matches.
2614 public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_type,
2615 Type queried_type, MemberTypes mt,
2616 BindingFlags original_bf, string name)
2618 Timer.StartTimer (TimerType.MemberLookup);
2620 MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_type,
2621 queried_type, mt, original_bf, name);
2623 Timer.StopTimer (TimerType.MemberLookup);
2628 static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_type,
2629 Type queried_type, MemberTypes mt,
2630 BindingFlags original_bf, string name)
2632 BindingFlags bf = original_bf;
2634 ArrayList method_list = null;
2635 Type current_type = queried_type;
2636 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2637 bool skip_iface_check = true, used_cache = false;
2638 bool always_ok_flag = false;
2640 closure_invocation_type = invocation_type;
2641 closure_invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2642 closure_qualifier_type = qualifier_type;
2645 // If we are a nested class, we always have access to our container
2648 if (invocation_type != null){
2649 string invocation_name = invocation_type.FullName;
2650 if (invocation_name.IndexOf ('+') != -1){
2651 string container = queried_type.FullName + "+";
2652 int container_length = container.Length;
2654 if (invocation_name.Length > container_length){
2655 string shared = invocation_name.Substring (0, container_length);
2657 if (shared == container)
2658 always_ok_flag = true;
2663 // This is from the first time we find a method
2664 // in most cases, we do not actually find a method in the base class
2665 // so we can just ignore it, and save the arraylist allocation
2666 MemberInfo [] first_members_list = null;
2667 bool use_first_members_list = false;
2673 // `NonPublic' is lame, because it includes both protected and
2674 // private methods, so we need to control this behavior by
2675 // explicitly tracking if a private method is ok or not.
2677 // The possible cases are:
2678 // public, private and protected (internal does not come into the
2681 if ((invocation_type != null) &&
2682 ((invocation_type == current_type) ||
2683 IsNestedChildOf (invocation_type, current_type)) ||
2685 bf = original_bf | BindingFlags.NonPublic;
2689 closure_private_ok = (original_bf & BindingFlags.NonPublic) != 0;
2691 Timer.StopTimer (TimerType.MemberLookup);
2693 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2695 Timer.StartTimer (TimerType.MemberLookup);
2698 // When queried for an interface type, the cache will automatically check all
2699 // inherited members, so we don't need to do this here. However, this only
2700 // works if we already used the cache in the first iteration of this loop.
2702 // If we used the cache in any further iteration, we can still terminate the
2703 // loop since the cache always looks in all parent classes.
2709 skip_iface_check = false;
2711 if (current_type == TypeManager.object_type)
2714 current_type = current_type.BaseType;
2717 // This happens with interfaces, they have a null
2718 // basetype. Look members up in the Object class.
2720 if (current_type == null)
2721 current_type = TypeManager.object_type;
2724 if (list.Length == 0)
2728 // Events and types are returned by both `static' and `instance'
2729 // searches, which means that our above FindMembers will
2730 // return two copies of the same.
2732 if (list.Length == 1 && !(list [0] is MethodBase)){
2737 // Multiple properties: we query those just to find out the indexer
2740 if (list [0] is PropertyInfo)
2744 // We found an event: the cache lookup returns both the event and
2745 // its private field.
2747 if (list [0] is EventInfo) {
2748 if ((list.Length == 2) && (list [1] is FieldInfo))
2749 return new MemberInfo [] { list [0] };
2756 // We found methods, turn the search into "method scan"
2760 if (first_members_list != null) {
2761 if (use_first_members_list) {
2762 method_list = CopyNewMethods (method_list, first_members_list);
2763 use_first_members_list = false;
2766 method_list = CopyNewMethods (method_list, list);
2768 first_members_list = list;
2769 use_first_members_list = true;
2770 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2772 } while (searching);
2774 if (use_first_members_list) {
2775 foreach (MemberInfo mi in first_members_list) {
2776 if (! (mi is MethodBase)) {
2777 method_list = CopyNewMethods (method_list, first_members_list);
2778 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2781 return (MemberInfo []) first_members_list;
2784 if (method_list != null && method_list.Count > 0)
2785 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2788 // This happens if we already used the cache in the first iteration, in this case
2789 // the cache already looked in all interfaces.
2791 if (skip_iface_check)
2795 // Interfaces do not list members they inherit, so we have to
2798 if (!queried_type.IsInterface)
2801 if (queried_type.IsArray)
2802 queried_type = TypeManager.array_type;
2804 TypeExpr [] ifaces = GetInterfaces (queried_type);
2808 foreach (TypeExpr itype in ifaces){
2811 x = MemberLookup (null, null, itype.Type, mt, bf, name);
2820 // This is used to extract properties and event declarations from a type
2822 static MemberInfo [] SpecialContainerLookup (Type t, bool is_static)
2824 BindingFlags bf = BindingFlags.DeclaredOnly | (is_static ? BindingFlags.Static : BindingFlags.Instance);
2826 bf |= BindingFlags.Public | BindingFlags.NonPublic;
2828 if (t is TypeBuilder) {
2829 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
2831 return (MemberInfo []) decl.FindMembers (
2832 MemberTypes.Property | MemberTypes.Event,
2833 bf, FilterNone_delegate, null);
2835 return t.FindMembers (MemberTypes.Property | MemberTypes.Event,
2836 bf, FilterNone_delegate, null);
2841 public static bool IsSpecialMethod (MethodBase mb)
2843 Type t = mb.DeclaringType;
2845 MemberInfo [] matches = TypeManager.SpecialContainerLookup (t, mb.IsStatic);
2846 if (matches == null)
2849 foreach (MemberInfo mi in matches){
2850 if (mi is PropertyBuilder){
2851 Pair p = (Pair) properties [mi];
2853 if (p.First == mb || p.Second == mb)
2855 } else if (mi is PropertyInfo){
2856 MethodInfo [] methods = ((PropertyInfo) mi).GetAccessors (true);
2858 foreach (MethodInfo m in methods){
2862 } else if (mi is MyEventBuilder){
2863 Pair p = (Pair) events [mi];
2865 if (p.First == mb || p.Second == mb)
2867 } else if (mi is EventInfo){
2868 EventInfo ei = ((EventInfo) mi);
2870 if (ei.GetAddMethod (true) == mb)
2873 if (ei.GetRemoveMethod (true) == mb)
2876 if (ei.GetRaiseMethod (true) == mb)
2882 // Now check if it is an operator method
2886 if (s.StartsWith ("op_")){
2887 foreach (string name in Unary.oper_names){
2892 foreach (string name in Binary.oper_names){
2906 /// There is exactly one instance of this class per type.
2908 public sealed class TypeHandle : IMemberContainer {
2909 public readonly TypeHandle BaseType;
2911 readonly int id = ++next_id;
2912 static int next_id = 0;
2915 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2916 /// a TypeHandle yet, a new instance of it is created. This static method
2917 /// ensures that we'll only have one TypeHandle instance per type.
2919 public static TypeHandle GetTypeHandle (Type t)
2921 TypeHandle handle = (TypeHandle) type_hash [t];
2925 handle = new TypeHandle (t);
2926 type_hash.Add (t, handle);
2930 public static void CleanUp ()
2936 /// Returns the TypeHandle for TypeManager.object_type.
2938 public static IMemberContainer ObjectType {
2940 if (object_type != null)
2943 object_type = GetTypeHandle (TypeManager.object_type);
2950 /// Returns the TypeHandle for TypeManager.array_type.
2952 public static IMemberContainer ArrayType {
2954 if (array_type != null)
2957 array_type = GetTypeHandle (TypeManager.array_type);
2963 private static PtrHashtable type_hash = new PtrHashtable ();
2965 private static TypeHandle object_type = null;
2966 private static TypeHandle array_type = null;
2969 private bool is_interface;
2970 private MemberCache member_cache;
2972 private TypeHandle (Type type)
2975 if (type.BaseType != null)
2976 BaseType = GetTypeHandle (type.BaseType);
2977 this.is_interface = type.IsInterface;
2978 this.member_cache = new MemberCache (this);
2981 // IMemberContainer methods
2983 public string Name {
2985 return type.FullName;
2995 public IMemberContainer Parent {
3001 public bool IsInterface {
3003 return is_interface;
3007 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
3009 MemberInfo [] members;
3010 if (mt == MemberTypes.Event)
3011 members = type.GetEvents (bf | BindingFlags.DeclaredOnly);
3013 members = type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
3015 Array.Reverse (members);
3017 return new MemberList (members);
3020 // IMemberFinder methods
3022 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
3023 MemberFilter filter, object criteria)
3025 return new MemberList (member_cache.FindMembers (mt, bf, name, filter, criteria));
3028 public MemberCache MemberCache {
3030 return member_cache;
3034 public override string ToString ()
3036 if (BaseType != null)
3037 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
3039 return "TypeHandle (" + id + "," + Name + ")";