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 Type 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;
91 static public Type struct_layout_attribute_type;
92 static public Type field_offset_attribute_type;
95 // An empty array of types
97 static public Type [] NoTypes;
98 static public TypeExpr [] NoTypeExprs;
102 // Expressions representing the internal types. Used during declaration
105 static public TypeExpr system_object_expr, system_string_expr;
106 static public TypeExpr system_boolean_expr, system_decimal_expr;
107 static public TypeExpr system_single_expr, system_double_expr;
108 static public TypeExpr system_sbyte_expr, system_byte_expr;
109 static public TypeExpr system_int16_expr, system_uint16_expr;
110 static public TypeExpr system_int32_expr, system_uint32_expr;
111 static public TypeExpr system_int64_expr, system_uint64_expr;
112 static public TypeExpr system_char_expr, system_void_expr;
113 static public TypeExpr system_asynccallback_expr;
114 static public TypeExpr system_iasyncresult_expr;
115 static public TypeExpr system_valuetype_expr;
118 // This is only used when compiling corlib
120 static public Type system_int32_type;
121 static public Type system_array_type;
122 static public Type system_type_type;
123 static public Type system_assemblybuilder_type;
124 static public MethodInfo system_int_array_get_length;
125 static public MethodInfo system_int_array_get_rank;
126 static public MethodInfo system_object_array_clone;
127 static public MethodInfo system_int_array_get_length_int;
128 static public MethodInfo system_int_array_get_lower_bound_int;
129 static public MethodInfo system_int_array_get_upper_bound_int;
130 static public MethodInfo system_void_array_copyto_array_int;
134 // Internal, not really used outside
136 static Type runtime_helpers_type;
139 // These methods are called by code generated by the compiler
141 static public MethodInfo string_concat_string_string;
142 static public MethodInfo string_concat_string_string_string;
143 static public MethodInfo string_concat_string_string_string_string;
144 static public MethodInfo string_concat_string_dot_dot_dot;
145 static public MethodInfo string_concat_object_object;
146 static public MethodInfo string_concat_object_object_object;
147 static public MethodInfo string_concat_object_dot_dot_dot;
148 static public MethodInfo string_isinterneted_string;
149 static public MethodInfo system_type_get_type_from_handle;
150 static public MethodInfo object_getcurrent_void;
151 static public MethodInfo bool_movenext_void;
152 static public MethodInfo ienumerable_getenumerator_void;
153 static public MethodInfo void_reset_void;
154 static public MethodInfo void_dispose_void;
155 static public MethodInfo void_monitor_enter_object;
156 static public MethodInfo void_monitor_exit_object;
157 static public MethodInfo void_initializearray_array_fieldhandle;
158 static public MethodInfo int_getlength_int;
159 static public MethodInfo delegate_combine_delegate_delegate;
160 static public MethodInfo delegate_remove_delegate_delegate;
161 static public MethodInfo int_get_offset_to_string_data;
162 static public MethodInfo int_array_get_length;
163 static public MethodInfo int_array_get_rank;
164 static public MethodInfo object_array_clone;
165 static public MethodInfo int_array_get_length_int;
166 static public MethodInfo int_array_get_lower_bound_int;
167 static public MethodInfo int_array_get_upper_bound_int;
168 static public MethodInfo void_array_copyto_array_int;
171 // The attribute constructors.
173 static public ConstructorInfo object_ctor;
174 static public ConstructorInfo cons_param_array_attribute;
175 static public ConstructorInfo void_decimal_ctor_five_args;
176 static public ConstructorInfo unverifiable_code_ctor;
177 static public ConstructorInfo invalid_operation_ctor;
180 // Holds the Array of Assemblies that have been loaded
181 // (either because it is the default or the user used the
182 // -r command line option)
184 static Assembly [] assemblies;
187 // Keeps a list of modules. We used this to do lookups
188 // on the module using GetType -- needed for arrays
190 static Module [] modules;
193 // This is the type_cache from the assemblies to avoid
194 // hitting System.Reflection on every lookup.
196 static Hashtable types;
199 // This is used to hotld the corresponding TypeContainer objects
200 // since we need this in FindMembers
202 static Hashtable typecontainers;
205 // Keeps track of those types that are defined by the
208 static ArrayList user_types;
210 static PtrHashtable builder_to_declspace;
213 // Tracks the interfaces implemented by typebuilders. We only
214 // enter those who do implement or or more interfaces
216 static PtrHashtable builder_to_ifaces;
219 // Maps MethodBase.RuntimeTypeHandle to a Type array that contains
220 // the arguments to the method
222 static Hashtable method_arguments;
225 // Maps PropertyBuilder to a Type array that contains
226 // the arguments to the indexer
228 static Hashtable indexer_arguments;
231 // Maybe `method_arguments' should be replaced and only
232 // method_internal_params should be kept?
234 static Hashtable method_internal_params;
237 // Keeps track of methods
240 static Hashtable builder_to_method;
241 static Hashtable builder_to_method_2;
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 builder_to_method_2 = new PtrHashtable ();
363 method_arguments = new PtrHashtable ();
364 method_internal_params = new PtrHashtable ();
365 indexer_arguments = new PtrHashtable ();
366 builder_to_ifaces = new PtrHashtable ();
368 NoTypes = new Type [0];
369 NoTypeExprs = new TypeExpr [0];
371 signature_filter = new MemberFilter (SignatureFilter);
372 InitExpressionTypes ();
375 public static void HandleDuplicate (string name, Type t)
377 Type prev = (Type) types [name];
378 TypeContainer tc = builder_to_declspace [prev] as TypeContainer;
382 // This probably never happens, as we catch this before
384 Report.Error (-17, "The type `" + name + "' has already been defined.");
388 tc = builder_to_declspace [t] as TypeContainer;
391 1595, "The type `" + name + "' is defined in an existing assembly;"+
392 " Using the new definition from: " + tc.Location);
395 1595, "The type `" + name + "' is defined in an existing assembly;");
398 Report.Warning (1595, "Previously defined in: " + prev.Assembly.FullName);
404 public static void AddUserType (string name, TypeBuilder t, TypeExpr[] ifaces)
409 HandleDuplicate (name, t);
414 builder_to_ifaces [t] = ifaces;
418 // This entry point is used by types that we define under the covers
420 public static void RegisterBuilder (TypeBuilder tb, TypeExpr [] ifaces)
423 builder_to_ifaces [tb] = ifaces;
426 public static void AddUserType (string name, TypeBuilder t, TypeContainer tc, TypeExpr [] ifaces)
428 builder_to_declspace.Add (t, tc);
429 typecontainers.Add (name, tc);
430 AddUserType (name, t, ifaces);
433 public static void AddDelegateType (string name, TypeBuilder t, Delegate del)
438 HandleDuplicate (name, t);
441 builder_to_declspace.Add (t, del);
444 public static void AddEnumType (string name, TypeBuilder t, Enum en)
449 HandleDuplicate (name, t);
451 builder_to_declspace.Add (t, en);
454 public static void AddUserInterface (string name, TypeBuilder t, Interface i, TypeExpr [] ifaces)
456 AddUserType (name, t, ifaces);
457 builder_to_declspace.Add (t, i);
461 [Obsolete("Will be removed very soon")]
462 public static void AddMethod (MethodBuilder builder, MethodData method)
464 builder_to_method.Add (builder, method);
467 public static void AddMethod2 (MethodBase builder, IMethodData method)
469 builder_to_method_2.Add (builder, method);
472 public static IMethodData GetMethod (MethodBase builder)
474 return (IMethodData) builder_to_method_2 [builder];
478 /// Returns the DeclSpace whose Type is `t' or null if there is no
479 /// DeclSpace for `t' (ie, the Type comes from a library)
481 public static DeclSpace LookupDeclSpace (Type t)
483 return builder_to_declspace [t] as DeclSpace;
487 /// Returns the TypeContainer whose Type is `t' or null if there is no
488 /// TypeContainer for `t' (ie, the Type comes from a library)
490 public static TypeContainer LookupTypeContainer (Type t)
492 return builder_to_declspace [t] as TypeContainer;
495 public static IMemberContainer LookupMemberContainer (Type t)
497 if (t is TypeBuilder) {
498 IMemberContainer container = builder_to_declspace [t] as IMemberContainer;
499 if (container != null)
503 return TypeHandle.GetTypeHandle (t);
506 public static Interface LookupInterface (Type t)
508 return builder_to_declspace [t] as Interface;
511 public static Delegate LookupDelegate (Type t)
513 return builder_to_declspace [t] as Delegate;
516 public static Enum LookupEnum (Type t)
518 return builder_to_declspace [t] as Enum;
521 public static Class LookupClass (Type t)
523 return (Class) builder_to_declspace [t];
527 /// Registers an assembly to load types from.
529 public static void AddAssembly (Assembly a)
531 foreach (Assembly assembly in assemblies) {
536 int top = assemblies.Length;
537 Assembly [] n = new Assembly [top + 1];
539 assemblies.CopyTo (n, 0);
546 /// Registers a module builder to lookup types from
548 public static void AddModule (Module mb)
550 int top = modules != null ? modules.Length : 0;
551 Module [] n = new Module [top + 1];
554 modules.CopyTo (n, 0);
559 public static Module[] Modules {
565 static Hashtable references = new Hashtable ();
568 // Gets the reference to T version of the Type (T&)
570 public static Type GetReferenceType (Type t)
572 string tname = t.FullName + "&";
574 Type ret = t.Assembly.GetType (tname);
577 // If the type comes from the assembly we are building
578 // We need the Hashtable, because .NET 1.1 will return different instance types
579 // every time we call ModuleBuilder.GetType.
582 if (references [t] == null)
583 references [t] = CodeGen.Module.Builder.GetType (tname);
584 ret = (Type) references [t];
590 static Hashtable pointers = new Hashtable ();
593 // Gets the pointer to T version of the Type (T*)
595 public static Type GetPointerType (Type t)
597 string tname = t.FullName + "*";
599 Type ret = t.Assembly.GetType (tname);
602 // If the type comes from the assembly we are building
603 // We need the Hashtable, because .NET 1.1 will return different instance types
604 // every time we call ModuleBuilder.GetType.
607 if (pointers [t] == null)
608 pointers [t] = CodeGen.Module.Builder.GetType (tname);
610 ret = (Type) pointers [t];
617 // Low-level lookup, cache-less
619 static Type LookupTypeReflection (string name)
623 foreach (Assembly a in assemblies){
624 t = a.GetType (name);
629 TypeAttributes ta = t.Attributes & TypeAttributes.VisibilityMask;
630 if (ta == TypeAttributes.NotPublic ||
631 ta == TypeAttributes.NestedPrivate ||
632 ta == TypeAttributes.NestedAssembly ||
633 ta == TypeAttributes.NestedFamANDAssem){
636 // In .NET pointers turn out to be private, even if their
637 // element type is not
640 t = t.GetElementType ();
650 foreach (Module mb in modules) {
651 t = mb.GetType (name);
659 static Hashtable negative_hits = new Hashtable ();
662 // This function is used when you want to avoid the lookups, and want to go
663 // directly to the source. This will use the cache.
665 // Notice that bypassing the cache is bad, because on Microsoft.NET runtime
666 // GetType ("DynamicType[]") != GetType ("DynamicType[]"), and there is no
667 // way to test things other than doing a fullname compare
669 public static Type LookupTypeDirect (string name)
671 Type t = (Type) types [name];
675 t = LookupTypeReflection (name);
683 static readonly char [] dot_array = { '.' };
686 /// Returns the Type associated with @name, takes care of the fact that
687 /// reflection expects nested types to be separated from the main type
688 /// with a "+" instead of a "."
690 public static Type LookupType (string name)
695 // First lookup in user defined and cached values
698 t = (Type) types [name];
702 // Two thirds of the failures are caught here.
703 if (negative_hits.Contains (name))
706 // Sadly, split takes a param array, so this ends up allocating *EVERY TIME*
707 string [] elements = name.Split (dot_array);
708 int count = elements.Length;
710 for (int n = 1; n <= count; n++){
711 string top_level_type = String.Join (".", elements, 0, n);
713 // One third of the failures are caught here.
714 if (negative_hits.Contains (top_level_type))
717 t = (Type) types [top_level_type];
719 t = LookupTypeReflection (top_level_type);
721 negative_hits [top_level_type] = null;
732 // We know that System.Object does not have children, and since its the parent of
733 // all the objects, it always gets probbed for inner classes.
735 if (top_level_type == "System.Object")
738 string newt = top_level_type + "+" + String.Join ("+", elements, n, count - n);
739 //Console.WriteLine ("Looking up: " + newt + " " + name);
740 t = LookupTypeReflection (newt);
742 negative_hits [name] = null;
747 negative_hits [name] = null;
752 /// Computes the namespaces that we import from the assemblies we reference.
754 public static void ComputeNamespaces ()
756 MethodInfo assembly_get_namespaces = typeof (Assembly).GetMethod ("GetNamespaces", BindingFlags.Instance|BindingFlags.NonPublic);
759 // First add the assembly namespaces
761 if (assembly_get_namespaces != null){
762 int count = assemblies.Length;
764 for (int i = 0; i < count; i++){
765 Assembly a = assemblies [i];
766 string [] namespaces = (string []) assembly_get_namespaces.Invoke (a, null);
767 foreach (string ns in namespaces){
770 Namespace.LookupNamespace (ns, true);
774 Hashtable cache = new Hashtable ();
775 cache.Add ("", null);
776 foreach (Assembly a in assemblies) {
777 foreach (Type t in a.GetExportedTypes ()) {
778 string ns = t.Namespace;
779 if (ns == null || cache.Contains (ns))
782 Namespace.LookupNamespace (ns, true);
783 cache.Add (ns, null);
790 /// Fills static table with exported types from all referenced assemblies.
791 /// This information is required for CLS Compliance tests.
793 public static void LoadAllImportedTypes ()
795 if (!CodeGen.Assembly.IsClsCompliant)
798 all_imported_types = new Hashtable ();
799 foreach (Assembly a in assemblies) {
800 foreach (Type t in a.GetExportedTypes ()) {
801 all_imported_types [t.FullName] = t;
806 public static bool NamespaceClash (string name, Location loc)
808 if (Namespace.LookupNamespace (name, false) == null)
811 Report.Error (519, loc, String.Format ("`{0}' clashes with a predefined namespace", name));
816 /// Returns the C# name of a type if possible, or the full type name otherwise
818 static public string CSharpName (Type t)
820 return Regex.Replace (t.FullName,
822 @"(Int32|UInt32|Int16|UInt16|Int64|UInt64|" +
823 @"Single|Double|Char|Decimal|Byte|SByte|Object|" +
824 @"Boolean|String|Void)" +
826 new MatchEvaluator (CSharpNameMatch));
829 static String CSharpNameMatch (Match match)
831 string s = match.Groups [1].Captures [0].Value;
833 Replace ("int32", "int").
834 Replace ("uint32", "uint").
835 Replace ("int16", "short").
836 Replace ("uint16", "ushort").
837 Replace ("int64", "long").
838 Replace ("uint64", "ulong").
839 Replace ("single", "float").
840 Replace ("boolean", "bool")
841 + match.Groups [2].Captures [0].Value;
845 /// Returns the signature of the method with full namespace classification
847 static public string GetFullNameSignature (MemberInfo mi)
851 n = mi.DeclaringType.Name;
853 return mi.DeclaringType.FullName.Replace ('+', '.') + '.' + n;
857 /// Returns the signature of the property and indexer
859 static public string CSharpSignature (PropertyBuilder pb, bool is_indexer)
862 return GetFullNameSignature (pb);
865 MethodBase mb = pb.GetSetMethod (true) != null ? pb.GetSetMethod (true) : pb.GetGetMethod (true);
866 string signature = GetFullNameSignature (mb);
867 string arg = TypeManager.LookupParametersByBuilder (mb).ParameterDesc (0);
868 return String.Format ("{0}.this[{1}]", signature.Substring (0, signature.LastIndexOf ('.')), arg);
872 /// Returns the signature of the method
874 static public string CSharpSignature (MethodBase mb)
879 // FIXME: We should really have a single function to do
880 // everything instead of the following 5 line pattern
882 ParameterData iparams = LookupParametersByBuilder (mb);
884 if (iparams == null){
885 ParameterInfo [] pi = mb.GetParameters ();
886 iparams = new ReflectionParameters (pi);
889 for (int i = 0; i < iparams.Count; i++) {
893 sig += iparams.ParameterDesc(i);
897 return GetFullNameSignature (mb) + sig;
901 /// Looks up a type, and aborts if it is not found. This is used
902 /// by types required by the compiler
904 static Type CoreLookupType (string name)
906 Type t = LookupTypeDirect (name);
909 Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
910 Environment.Exit (1);
917 /// Returns the MethodInfo for a method named `name' defined
918 /// in type `t' which takes arguments of types `args'
920 static MethodInfo GetMethod (Type t, string name, Type [] args, bool is_private, bool report_errors)
924 BindingFlags flags = instance_and_static | BindingFlags.Public;
930 flags |= BindingFlags.NonPublic;
932 list = FindMembers (t, MemberTypes.Method, flags, signature_filter, sig);
933 if (list.Count == 0) {
935 Report.Error (-19, "Can not find the core function `" + name + "'");
939 MethodInfo mi = list [0] as MethodInfo;
942 Report.Error (-19, "Can not find the core function `" + name + "'");
949 static MethodInfo GetMethod (Type t, string name, Type [] args, bool report_errors)
951 return GetMethod (t, name, args, false, report_errors);
954 static MethodInfo GetMethod (Type t, string name, Type [] args)
956 return GetMethod (t, name, args, true);
961 /// Returns the ConstructorInfo for "args"
963 static ConstructorInfo GetConstructor (Type t, Type [] args)
971 list = FindMembers (t, MemberTypes.Constructor,
972 instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly,
973 signature_filter, sig);
974 if (list.Count == 0){
975 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
979 ConstructorInfo ci = list [0] as ConstructorInfo;
981 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
988 public static void InitEnumUnderlyingTypes ()
991 int32_type = CoreLookupType ("System.Int32");
992 int64_type = CoreLookupType ("System.Int64");
993 uint32_type = CoreLookupType ("System.UInt32");
994 uint64_type = CoreLookupType ("System.UInt64");
995 byte_type = CoreLookupType ("System.Byte");
996 sbyte_type = CoreLookupType ("System.SByte");
997 short_type = CoreLookupType ("System.Int16");
998 ushort_type = CoreLookupType ("System.UInt16");
1002 /// The types have to be initialized after the initial
1003 /// population of the type has happened (for example, to
1004 /// bootstrap the corlib.dll
1006 public static void InitCoreTypes ()
1008 object_type = CoreLookupType ("System.Object");
1009 value_type = CoreLookupType ("System.ValueType");
1011 InitEnumUnderlyingTypes ();
1013 char_type = CoreLookupType ("System.Char");
1014 string_type = CoreLookupType ("System.String");
1015 float_type = CoreLookupType ("System.Single");
1016 double_type = CoreLookupType ("System.Double");
1017 char_ptr_type = CoreLookupType ("System.Char*");
1018 decimal_type = CoreLookupType ("System.Decimal");
1019 bool_type = CoreLookupType ("System.Boolean");
1020 enum_type = CoreLookupType ("System.Enum");
1022 multicast_delegate_type = CoreLookupType ("System.MulticastDelegate");
1023 delegate_type = CoreLookupType ("System.Delegate");
1025 array_type = CoreLookupType ("System.Array");
1026 void_type = CoreLookupType ("System.Void");
1027 type_type = CoreLookupType ("System.Type");
1029 runtime_field_handle_type = CoreLookupType ("System.RuntimeFieldHandle");
1030 runtime_helpers_type = CoreLookupType ("System.Runtime.CompilerServices.RuntimeHelpers");
1031 default_member_type = CoreLookupType ("System.Reflection.DefaultMemberAttribute");
1032 runtime_handle_type = CoreLookupType ("System.RuntimeTypeHandle");
1033 asynccallback_type = CoreLookupType ("System.AsyncCallback");
1034 iasyncresult_type = CoreLookupType ("System.IAsyncResult");
1035 ienumerator_type = CoreLookupType ("System.Collections.IEnumerator");
1036 ienumerable_type = CoreLookupType ("System.Collections.IEnumerable");
1037 idisposable_type = CoreLookupType ("System.IDisposable");
1038 icloneable_type = CoreLookupType ("System.ICloneable");
1039 monitor_type = CoreLookupType ("System.Threading.Monitor");
1040 intptr_type = CoreLookupType ("System.IntPtr");
1042 attribute_type = CoreLookupType ("System.Attribute");
1043 attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
1044 dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
1045 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
1046 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
1047 param_array_type = CoreLookupType ("System.ParamArrayAttribute");
1048 in_attribute_type = CoreLookupType ("System.Runtime.InteropServices.InAttribute");
1049 typed_reference_type = CoreLookupType ("System.TypedReference");
1050 arg_iterator_type = CoreLookupType ("System.ArgIterator");
1051 mbr_type = CoreLookupType ("System.MarshalByRefObject");
1054 // Sigh. Remove this before the release. Wonder what versions of Mono
1055 // people are running.
1057 guid_attr_type = LookupType ("System.Runtime.InteropServices.GuidAttribute");
1059 unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
1061 void_ptr_type = CoreLookupType ("System.Void*");
1063 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
1065 exception_type = CoreLookupType ("System.Exception");
1066 invalid_operation_exception_type = CoreLookupType ("System.InvalidOperationException");
1071 obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
1072 conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
1073 cls_compliant_attribute_type = CoreLookupType ("System.CLSCompliantAttribute");
1074 struct_layout_attribute_type = CoreLookupType ("System.Runtime.InteropServices.StructLayoutAttribute");
1075 field_offset_attribute_type = CoreLookupType ("System.Runtime.InteropServices.FieldOffsetAttribute");
1078 // When compiling corlib, store the "real" types here.
1080 if (!RootContext.StdLib) {
1081 system_int32_type = typeof (System.Int32);
1082 system_array_type = typeof (System.Array);
1083 system_type_type = typeof (System.Type);
1084 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
1086 Type [] void_arg = { };
1087 system_int_array_get_length = GetMethod (
1088 system_array_type, "get_Length", void_arg);
1089 system_int_array_get_rank = GetMethod (
1090 system_array_type, "get_Rank", void_arg);
1091 system_object_array_clone = GetMethod (
1092 system_array_type, "Clone", void_arg);
1094 Type [] system_int_arg = { system_int32_type };
1095 system_int_array_get_length_int = GetMethod (
1096 system_array_type, "GetLength", system_int_arg);
1097 system_int_array_get_upper_bound_int = GetMethod (
1098 system_array_type, "GetUpperBound", system_int_arg);
1099 system_int_array_get_lower_bound_int = GetMethod (
1100 system_array_type, "GetLowerBound", system_int_arg);
1102 Type [] system_array_int_arg = { system_array_type, system_int32_type };
1103 system_void_array_copyto_array_int = GetMethod (
1104 system_array_type, "CopyTo", system_array_int_arg);
1106 Type [] system_3_type_arg = {
1107 system_type_type, system_type_type, system_type_type };
1108 Type [] system_4_type_arg = {
1109 system_type_type, system_type_type, system_type_type, system_type_type };
1111 MethodInfo set_corlib_type_builders = GetMethod (
1112 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1113 system_4_type_arg, true, false);
1115 if (set_corlib_type_builders != null) {
1116 object[] args = new object [4];
1117 args [0] = object_type;
1118 args [1] = value_type;
1119 args [2] = enum_type;
1120 args [3] = void_type;
1122 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1124 // Compatibility for an older version of the class libs.
1125 set_corlib_type_builders = GetMethod (
1126 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1127 system_3_type_arg, true, true);
1129 if (set_corlib_type_builders == null) {
1130 Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
1134 object[] args = new object [3];
1135 args [0] = object_type;
1136 args [1] = value_type;
1137 args [2] = enum_type;
1139 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1143 system_object_expr.Type = object_type;
1144 system_string_expr.Type = string_type;
1145 system_boolean_expr.Type = bool_type;
1146 system_decimal_expr.Type = decimal_type;
1147 system_single_expr.Type = float_type;
1148 system_double_expr.Type = double_type;
1149 system_sbyte_expr.Type = sbyte_type;
1150 system_byte_expr.Type = byte_type;
1151 system_int16_expr.Type = short_type;
1152 system_uint16_expr.Type = ushort_type;
1153 system_int32_expr.Type = int32_type;
1154 system_uint32_expr.Type = uint32_type;
1155 system_int64_expr.Type = int64_type;
1156 system_uint64_expr.Type = uint64_type;
1157 system_char_expr.Type = char_type;
1158 system_void_expr.Type = void_type;
1159 system_asynccallback_expr.Type = asynccallback_type;
1160 system_iasyncresult_expr.Type = iasyncresult_type;
1161 system_valuetype_expr.Type = value_type;
1165 // The helper methods that are used by the compiler
1167 public static void InitCodeHelpers ()
1170 // Now load the default methods that we use.
1172 Type [] string_string = { string_type, string_type };
1173 string_concat_string_string = GetMethod (
1174 string_type, "Concat", string_string);
1175 Type [] string_string_string = { string_type, string_type, string_type };
1176 string_concat_string_string_string = GetMethod (
1177 string_type, "Concat", string_string_string);
1178 Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
1179 string_concat_string_string_string_string = GetMethod (
1180 string_type, "Concat", string_string_string_string);
1181 Type[] params_string = { TypeManager.LookupType ("System.String[]") };
1182 string_concat_string_dot_dot_dot = GetMethod (
1183 string_type, "Concat", params_string);
1185 Type [] object_object = { object_type, object_type };
1186 string_concat_object_object = GetMethod (
1187 string_type, "Concat", object_object);
1188 Type [] object_object_object = { object_type, object_type, object_type };
1189 string_concat_object_object_object = GetMethod (
1190 string_type, "Concat", object_object_object);
1191 Type[] params_object = { TypeManager.LookupType ("System.Object[]") };
1192 string_concat_object_dot_dot_dot = GetMethod (
1193 string_type, "Concat", params_object);
1195 Type [] string_ = { string_type };
1196 string_isinterneted_string = GetMethod (
1197 string_type, "IsInterned", string_);
1199 Type [] runtime_type_handle = { runtime_handle_type };
1200 system_type_get_type_from_handle = GetMethod (
1201 type_type, "GetTypeFromHandle", runtime_type_handle);
1203 Type [] delegate_delegate = { delegate_type, delegate_type };
1204 delegate_combine_delegate_delegate = GetMethod (
1205 delegate_type, "Combine", delegate_delegate);
1207 delegate_remove_delegate_delegate = GetMethod (
1208 delegate_type, "Remove", delegate_delegate);
1213 Type [] void_arg = { };
1214 object_getcurrent_void = GetMethod (
1215 ienumerator_type, "get_Current", void_arg);
1216 bool_movenext_void = GetMethod (
1217 ienumerator_type, "MoveNext", void_arg);
1218 void_reset_void = GetMethod (
1219 ienumerator_type, "Reset", void_arg);
1220 void_dispose_void = GetMethod (
1221 idisposable_type, "Dispose", void_arg);
1222 int_get_offset_to_string_data = GetMethod (
1223 runtime_helpers_type, "get_OffsetToStringData", void_arg);
1224 int_array_get_length = GetMethod (
1225 array_type, "get_Length", void_arg);
1226 int_array_get_rank = GetMethod (
1227 array_type, "get_Rank", void_arg);
1228 ienumerable_getenumerator_void = GetMethod (
1229 ienumerable_type, "GetEnumerator", void_arg);
1234 Type [] int_arg = { int32_type };
1235 int_array_get_length_int = GetMethod (
1236 array_type, "GetLength", int_arg);
1237 int_array_get_upper_bound_int = GetMethod (
1238 array_type, "GetUpperBound", int_arg);
1239 int_array_get_lower_bound_int = GetMethod (
1240 array_type, "GetLowerBound", int_arg);
1243 // System.Array methods
1245 object_array_clone = GetMethod (
1246 array_type, "Clone", void_arg);
1247 Type [] array_int_arg = { array_type, int32_type };
1248 void_array_copyto_array_int = GetMethod (
1249 array_type, "CopyTo", array_int_arg);
1254 Type [] object_arg = { object_type };
1255 void_monitor_enter_object = GetMethod (
1256 monitor_type, "Enter", object_arg);
1257 void_monitor_exit_object = GetMethod (
1258 monitor_type, "Exit", object_arg);
1260 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1262 void_initializearray_array_fieldhandle = GetMethod (
1263 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1268 int_getlength_int = GetMethod (
1269 array_type, "GetLength", int_arg);
1272 // Decimal constructors
1274 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1275 void_decimal_ctor_five_args = GetConstructor (
1276 decimal_type, dec_arg);
1281 cons_param_array_attribute = GetConstructor (
1282 param_array_type, void_arg);
1284 unverifiable_code_ctor = GetConstructor (
1285 unverifiable_code_type, void_arg);
1288 // InvalidOperationException
1290 invalid_operation_ctor = GetConstructor (
1291 invalid_operation_exception_type, void_arg);
1295 object_ctor = GetConstructor (object_type, void_arg);
1299 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1302 /// This is the "old", non-cache based FindMembers() function. We cannot use
1303 /// the cache here because there is no member name argument.
1305 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1306 MemberFilter filter, object criteria)
1308 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1311 // `builder_to_declspace' contains all dynamic types.
1315 Timer.StartTimer (TimerType.FindMembers);
1316 list = decl.FindMembers (mt, bf, filter, criteria);
1317 Timer.StopTimer (TimerType.FindMembers);
1322 // We have to take care of arrays specially, because GetType on
1323 // a TypeBuilder array will return a Type, not a TypeBuilder,
1324 // and we can not call FindMembers on this type.
1326 if (t.IsSubclassOf (TypeManager.array_type))
1327 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1330 // Since FindMembers will not lookup both static and instance
1331 // members, we emulate this behaviour here.
1333 if ((bf & instance_and_static) == instance_and_static){
1334 MemberInfo [] i_members = t.FindMembers (
1335 mt, bf & ~BindingFlags.Static, filter, criteria);
1337 int i_len = i_members.Length;
1339 MemberInfo one = i_members [0];
1342 // If any of these are present, we are done!
1344 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1345 return new MemberList (i_members);
1348 MemberInfo [] s_members = t.FindMembers (
1349 mt, bf & ~BindingFlags.Instance, filter, criteria);
1351 int s_len = s_members.Length;
1352 if (i_len > 0 || s_len > 0)
1353 return new MemberList (i_members, s_members);
1356 return new MemberList (i_members);
1358 return new MemberList (s_members);
1362 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1367 /// This method is only called from within MemberLookup. It tries to use the member
1368 /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
1369 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1370 /// our return value will already contain all inherited members and the caller don't need
1371 /// to check base classes and interfaces anymore.
1373 private static MemberInfo [] MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1374 string name, out bool used_cache)
1377 // We have to take care of arrays specially, because GetType on
1378 // a TypeBuilder array will return a Type, not a TypeBuilder,
1379 // and we can not call FindMembers on this type.
1381 if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
1383 return TypeHandle.ArrayType.MemberCache.FindMembers (
1384 mt, bf, name, FilterWithClosure_delegate, null);
1388 // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
1389 // and we can ask the DeclSpace for the MemberCache.
1391 if (t is TypeBuilder) {
1392 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1393 MemberCache cache = decl.MemberCache;
1396 // If this DeclSpace has a MemberCache, use it.
1399 if (cache != null) {
1401 return cache.FindMembers (
1402 mt, bf, name, FilterWithClosure_delegate, null);
1405 // If there is no MemberCache, we need to use the "normal" FindMembers.
1406 // Note, this is a VERY uncommon route!
1409 Timer.StartTimer (TimerType.FindMembers);
1410 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
1411 FilterWithClosure_delegate, name);
1412 Timer.StopTimer (TimerType.FindMembers);
1415 return (MemberInfo []) list;
1419 // This call will always succeed. There is exactly one TypeHandle instance per
1420 // type, TypeHandle.GetTypeHandle() will either return it or create a new one
1421 // if it didn't already exist.
1423 TypeHandle handle = TypeHandle.GetTypeHandle (t);
1426 return handle.MemberCache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1429 public static bool IsBuiltinType (Type t)
1431 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1432 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1433 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1434 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
1440 public static bool IsBuiltinType (TypeContainer tc)
1442 return IsBuiltinType (tc.TypeBuilder);
1446 // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
1447 // the pieces in the code where we use IsBuiltinType and special case decimal_type.
1449 public static bool IsCLRType (Type t)
1451 if (t == object_type || t == int32_type || t == uint32_type ||
1452 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1453 t == char_type || t == short_type || t == bool_type ||
1454 t == sbyte_type || t == byte_type || t == ushort_type)
1460 public static bool IsDelegateType (Type t)
1462 if (t.IsSubclassOf (TypeManager.delegate_type))
1468 public static bool IsEnumType (Type t)
1470 if (t == TypeManager.enum_type || t.IsSubclassOf (TypeManager.enum_type))
1475 public static bool IsBuiltinOrEnum (Type t)
1477 if (IsBuiltinType (t))
1487 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1489 public static bool IsUnmanagedType (Type t)
1491 if (IsBuiltinType (t) && t != TypeManager.string_type)
1500 if (IsValueType (t)){
1501 if (t is TypeBuilder){
1502 TypeContainer tc = LookupTypeContainer (t);
1504 if (tc.Fields != null){
1505 foreach (Field f in tc.Fields){
1506 if (f.FieldBuilder.IsStatic)
1508 if (!IsUnmanagedType (f.FieldBuilder.FieldType))
1514 FieldInfo [] fields = t.GetFields ();
1516 foreach (FieldInfo f in fields){
1519 if (!IsUnmanagedType (f.FieldType))
1529 public static bool IsValueType (Type t)
1531 if (t.IsSubclassOf (TypeManager.value_type) && (t != TypeManager.enum_type))
1537 public static bool IsInterfaceType (Type t)
1539 Interface iface = builder_to_declspace [t] as Interface;
1548 // Checks whether `type' is a subclass or nested child of `parent'.
1550 public static bool IsSubclassOrNestedChildOf (Type type, Type parent)
1553 if ((type == parent) || type.IsSubclassOf (parent))
1556 // Handle nested types.
1557 type = type.DeclaringType;
1558 } while (type != null);
1564 // Checks whether `type' is a nested child of `parent'.
1566 public static bool IsNestedChildOf (Type type, Type parent)
1571 type = type.DeclaringType;
1572 while (type != null) {
1576 type = type.DeclaringType;
1583 // Do the right thing when returning the element type of an
1584 // array type based on whether we are compiling corlib or not
1586 public static Type GetElementType (Type t)
1588 if (RootContext.StdLib)
1589 return t.GetElementType ();
1591 return TypeToCoreType (t.GetElementType ());
1595 /// Returns the User Defined Types
1597 public static ArrayList UserTypes {
1603 public static Hashtable TypeContainers {
1605 return typecontainers;
1609 static Hashtable builder_to_constant;
1611 public static void RegisterConstant (FieldBuilder fb, Const c)
1613 if (builder_to_constant == null)
1614 builder_to_constant = new PtrHashtable ();
1616 if (builder_to_constant.Contains (fb))
1619 builder_to_constant.Add (fb, c);
1622 public static Const LookupConstant (FieldBuilder fb)
1624 if (builder_to_constant == null)
1627 return (Const) builder_to_constant [fb];
1631 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1635 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1636 /// for anything which is dynamic, and we need this in a number of places,
1637 /// we register this information here, and use it afterwards.
1639 static public bool RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1644 method_arguments.Add (mb, args);
1645 method_internal_params.Add (mb, ip);
1650 static public InternalParameters LookupParametersByBuilder (MethodBase mb)
1652 if (! (mb is ConstructorBuilder || mb is MethodBuilder))
1655 if (method_internal_params.Contains (mb))
1656 return (InternalParameters) method_internal_params [mb];
1658 throw new Exception ("Argument for Method not registered" + mb);
1662 /// Returns the argument types for a method based on its methodbase
1664 /// For dynamic methods, we use the compiler provided types, for
1665 /// methods from existing assemblies we load them from GetParameters,
1666 /// and insert them into the cache
1668 static public Type [] GetArgumentTypes (MethodBase mb)
1670 if (method_arguments.Contains (mb))
1671 return (Type []) method_arguments [mb];
1673 ParameterInfo [] pi = mb.GetParameters ();
1675 Type [] types = new Type [c];
1677 for (int i = 0; i < c; i++)
1678 types [i] = pi [i].ParameterType;
1680 method_arguments.Add (mb, types);
1686 /// Returns the argument types for an indexer based on its PropertyInfo
1688 /// For dynamic indexers, we use the compiler provided types, for
1689 /// indexers from existing assemblies we load them from GetParameters,
1690 /// and insert them into the cache
1692 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1694 if (indexer_arguments.Contains (indexer))
1695 return (Type []) indexer_arguments [indexer];
1696 else if (indexer is PropertyBuilder)
1697 // If we're a PropertyBuilder and not in the
1698 // `indexer_arguments' hash, then we're a property and
1702 ParameterInfo [] pi = indexer.GetIndexParameters ();
1703 // Property, not an indexer.
1707 Type [] types = new Type [c];
1709 for (int i = 0; i < c; i++)
1710 types [i] = pi [i].ParameterType;
1712 indexer_arguments.Add (indexer, types);
1718 // This is a workaround the fact that GetValue is not
1719 // supported for dynamic types
1721 static Hashtable fields = new Hashtable ();
1722 static public bool RegisterFieldValue (FieldBuilder fb, object value)
1724 if (fields.Contains (fb))
1727 fields.Add (fb, value);
1732 static public object GetValue (FieldBuilder fb)
1737 static Hashtable fieldbuilders_to_fields = new Hashtable ();
1738 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1740 if (fieldbuilders_to_fields.Contains (fb))
1743 fieldbuilders_to_fields.Add (fb, f);
1748 // The return value can be null; This will be the case for
1749 // auxiliary FieldBuilders created by the compiler that have no
1750 // real field being declared on the source code
1752 static public FieldBase GetField (FieldInfo fb)
1754 return (FieldBase) fieldbuilders_to_fields [fb];
1757 static Hashtable events;
1759 static public bool RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1762 events = new Hashtable ();
1764 if (events.Contains (eb))
1767 events.Add (eb, new Pair (add, remove));
1772 static public MethodInfo GetAddMethod (EventInfo ei)
1774 if (ei is MyEventBuilder) {
1775 Pair pair = (Pair) events [ei];
1777 return (MethodInfo) pair.First;
1779 return ei.GetAddMethod ();
1782 static public MethodInfo GetRemoveMethod (EventInfo ei)
1784 if (ei is MyEventBuilder) {
1785 Pair pair = (Pair) events [ei];
1787 return (MethodInfo) pair.Second;
1789 return ei.GetRemoveMethod ();
1792 static Hashtable priv_fields_events;
1794 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1796 if (priv_fields_events == null)
1797 priv_fields_events = new Hashtable ();
1799 if (priv_fields_events.Contains (einfo))
1802 priv_fields_events.Add (einfo, builder);
1807 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1809 if (priv_fields_events == null)
1812 return (MemberInfo) priv_fields_events [ei];
1815 static Hashtable properties;
1817 static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase set)
1819 if (properties == null)
1820 properties = new Hashtable ();
1822 if (properties.Contains (pb))
1825 properties.Add (pb, new Pair (get, set));
1830 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get,
1831 MethodBase set, Type[] args)
1833 if (!RegisterProperty (pb, get,set))
1836 indexer_arguments.Add (pb, args);
1841 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen)
1843 Hashtable hash = new Hashtable ();
1844 return CheckStructCycles (tc, seen, hash);
1847 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen,
1850 if (!(tc is Struct) || IsBuiltinType (tc))
1854 // `seen' contains all types we've already visited.
1856 if (seen.Contains (tc))
1858 seen.Add (tc, null);
1860 if (tc.Fields == null)
1863 foreach (Field field in tc.Fields) {
1864 if (field.FieldBuilder.IsStatic)
1867 Type ftype = field.FieldBuilder.FieldType;
1868 TypeContainer ftc = LookupTypeContainer (ftype);
1872 if (hash.Contains (ftc)) {
1873 Report.Error (523, tc.Location,
1874 "Struct member `{0}.{1}' of type `{2}' " +
1875 "causes a cycle in the struct layout",
1876 tc.Name, field.Name, ftc.Name);
1881 // `hash' contains all types in the current path.
1883 hash.Add (tc, null);
1885 bool ok = CheckStructCycles (ftc, seen, hash);
1892 if (!seen.Contains (ftc))
1893 seen.Add (ftc, null);
1900 /// Given an array of interface types, expand and eliminate repeated ocurrences
1901 /// of an interface.
1905 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
1908 public static TypeExpr[] ExpandInterfaces (TypeExpr [] base_interfaces)
1910 ArrayList new_ifaces = new ArrayList ();
1912 foreach (TypeExpr iface in base_interfaces){
1913 if (!new_ifaces.Contains (iface))
1914 new_ifaces.Add (iface);
1916 TypeExpr [] implementing = iface.GetInterfaces ();
1918 foreach (TypeExpr imp in implementing){
1919 if (!new_ifaces.Contains (imp))
1920 new_ifaces.Add (imp);
1923 TypeExpr [] ret = new TypeExpr [new_ifaces.Count];
1924 new_ifaces.CopyTo (ret, 0);
1928 static PtrHashtable iface_cache = new PtrHashtable ();
1931 /// This function returns the interfaces in the type `t'. Works with
1932 /// both types and TypeBuilders.
1934 public static TypeExpr [] GetInterfaces (Type t)
1937 TypeExpr [] cached = iface_cache [t] as TypeExpr [];
1942 // The reason for catching the Array case is that Reflection.Emit
1943 // will not return a TypeBuilder for Array types of TypeBuilder types,
1944 // but will still throw an exception if we try to call GetInterfaces
1947 // Since the array interfaces are always constant, we return those for
1952 t = TypeManager.array_type;
1954 if (t is TypeBuilder){
1955 TypeExpr [] parent_ifaces;
1957 if (t.BaseType == null)
1958 parent_ifaces = NoTypeExprs;
1960 parent_ifaces = GetInterfaces (t.BaseType);
1961 TypeExpr [] type_ifaces = (TypeExpr []) builder_to_ifaces [t];
1962 if (type_ifaces == null)
1963 type_ifaces = NoTypeExprs;
1965 int parent_count = parent_ifaces.Length;
1966 TypeExpr [] result = new TypeExpr [parent_count + type_ifaces.Length];
1967 parent_ifaces.CopyTo (result, 0);
1968 type_ifaces.CopyTo (result, parent_count);
1970 iface_cache [t] = result;
1973 Type [] ifaces = t.GetInterfaces ();
1974 if (ifaces.Length == 0)
1977 TypeExpr [] result = new TypeExpr [ifaces.Length];
1978 for (int i = 0; i < ifaces.Length; i++)
1979 result [i] = new TypeExpression (ifaces [i], Location.Null);
1981 iface_cache [t] = result;
1987 // gets the interfaces that are declared explicitly on t
1989 public static TypeExpr [] GetExplicitInterfaces (TypeBuilder t)
1991 return (TypeExpr []) builder_to_ifaces [t];
1995 /// The following is used to check if a given type implements an interface.
1996 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
1998 public static bool ImplementsInterface (Type t, Type iface)
2000 TypeExpr [] interfaces;
2003 // FIXME OPTIMIZATION:
2004 // as soon as we hit a non-TypeBuiler in the interface
2005 // chain, we could return, as the `Type.GetInterfaces'
2006 // will return all the interfaces implement by the type
2010 interfaces = GetInterfaces (t);
2012 if (interfaces != null){
2013 foreach (TypeExpr i in interfaces){
2014 if (i.Type == iface)
2020 } while (t != null);
2025 static NumberFormatInfo nf_provider = CultureInfo.CurrentCulture.NumberFormat;
2027 // This is a custom version of Convert.ChangeType() which works
2028 // with the TypeBuilder defined types when compiling corlib.
2029 public static object ChangeType (object value, Type conversionType, out bool error)
2031 IConvertible convert_value = value as IConvertible;
2033 if (convert_value == null){
2039 // We must use Type.Equals() here since `conversionType' is
2040 // the TypeBuilder created version of a system type and not
2041 // the system type itself. You cannot use Type.GetTypeCode()
2042 // on such a type - it'd always return TypeCode.Object.
2046 if (conversionType.Equals (typeof (Boolean)))
2047 return (object)(convert_value.ToBoolean (nf_provider));
2048 else if (conversionType.Equals (typeof (Byte)))
2049 return (object)(convert_value.ToByte (nf_provider));
2050 else if (conversionType.Equals (typeof (Char)))
2051 return (object)(convert_value.ToChar (nf_provider));
2052 else if (conversionType.Equals (typeof (DateTime)))
2053 return (object)(convert_value.ToDateTime (nf_provider));
2054 else if (conversionType.Equals (typeof (Decimal)))
2055 return (object)(convert_value.ToDecimal (nf_provider));
2056 else if (conversionType.Equals (typeof (Double)))
2057 return (object)(convert_value.ToDouble (nf_provider));
2058 else if (conversionType.Equals (typeof (Int16)))
2059 return (object)(convert_value.ToInt16 (nf_provider));
2060 else if (conversionType.Equals (typeof (Int32)))
2061 return (object)(convert_value.ToInt32 (nf_provider));
2062 else if (conversionType.Equals (typeof (Int64)))
2063 return (object)(convert_value.ToInt64 (nf_provider));
2064 else if (conversionType.Equals (typeof (SByte)))
2065 return (object)(convert_value.ToSByte (nf_provider));
2066 else if (conversionType.Equals (typeof (Single)))
2067 return (object)(convert_value.ToSingle (nf_provider));
2068 else if (conversionType.Equals (typeof (String)))
2069 return (object)(convert_value.ToString (nf_provider));
2070 else if (conversionType.Equals (typeof (UInt16)))
2071 return (object)(convert_value.ToUInt16 (nf_provider));
2072 else if (conversionType.Equals (typeof (UInt32)))
2073 return (object)(convert_value.ToUInt32 (nf_provider));
2074 else if (conversionType.Equals (typeof (UInt64)))
2075 return (object)(convert_value.ToUInt64 (nf_provider));
2076 else if (conversionType.Equals (typeof (Object)))
2077 return (object)(value);
2087 // This is needed, because enumerations from assemblies
2088 // do not report their underlyingtype, but they report
2091 public static Type EnumToUnderlying (Type t)
2093 if (t == TypeManager.enum_type)
2096 t = t.UnderlyingSystemType;
2097 if (!TypeManager.IsEnumType (t))
2100 if (t is TypeBuilder) {
2101 // slow path needed to compile corlib
2102 if (t == TypeManager.bool_type ||
2103 t == TypeManager.byte_type ||
2104 t == TypeManager.sbyte_type ||
2105 t == TypeManager.char_type ||
2106 t == TypeManager.short_type ||
2107 t == TypeManager.ushort_type ||
2108 t == TypeManager.int32_type ||
2109 t == TypeManager.uint32_type ||
2110 t == TypeManager.int64_type ||
2111 t == TypeManager.uint64_type)
2113 throw new Exception ("Unhandled typecode in enum " + " from " + t.AssemblyQualifiedName);
2115 TypeCode tc = Type.GetTypeCode (t);
2118 case TypeCode.Boolean:
2119 return TypeManager.bool_type;
2121 return TypeManager.byte_type;
2122 case TypeCode.SByte:
2123 return TypeManager.sbyte_type;
2125 return TypeManager.char_type;
2126 case TypeCode.Int16:
2127 return TypeManager.short_type;
2128 case TypeCode.UInt16:
2129 return TypeManager.ushort_type;
2130 case TypeCode.Int32:
2131 return TypeManager.int32_type;
2132 case TypeCode.UInt32:
2133 return TypeManager.uint32_type;
2134 case TypeCode.Int64:
2135 return TypeManager.int64_type;
2136 case TypeCode.UInt64:
2137 return TypeManager.uint64_type;
2139 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
2143 // When compiling corlib and called with one of the core types, return
2144 // the corresponding typebuilder for that type.
2146 public static Type TypeToCoreType (Type t)
2148 if (RootContext.StdLib || (t is TypeBuilder))
2151 TypeCode tc = Type.GetTypeCode (t);
2154 case TypeCode.Boolean:
2155 return TypeManager.bool_type;
2157 return TypeManager.byte_type;
2158 case TypeCode.SByte:
2159 return TypeManager.sbyte_type;
2161 return TypeManager.char_type;
2162 case TypeCode.Int16:
2163 return TypeManager.short_type;
2164 case TypeCode.UInt16:
2165 return TypeManager.ushort_type;
2166 case TypeCode.Int32:
2167 return TypeManager.int32_type;
2168 case TypeCode.UInt32:
2169 return TypeManager.uint32_type;
2170 case TypeCode.Int64:
2171 return TypeManager.int64_type;
2172 case TypeCode.UInt64:
2173 return TypeManager.uint64_type;
2174 case TypeCode.Single:
2175 return TypeManager.float_type;
2176 case TypeCode.Double:
2177 return TypeManager.double_type;
2178 case TypeCode.String:
2179 return TypeManager.string_type;
2181 if (t == typeof (void))
2182 return TypeManager.void_type;
2183 if (t == typeof (object))
2184 return TypeManager.object_type;
2185 if (t == typeof (System.Type))
2186 return TypeManager.type_type;
2187 if (t == typeof (System.IntPtr))
2188 return TypeManager.intptr_type;
2194 /// Utility function that can be used to probe whether a type
2195 /// is managed or not.
2197 public static bool VerifyUnManaged (Type t, Location loc)
2199 if (t.IsValueType || t.IsPointer){
2201 // FIXME: this is more complex, we actually need to
2202 // make sure that the type does not contain any
2208 if (!RootContext.StdLib && (t == TypeManager.decimal_type))
2209 // We need this explicit check here to make it work when
2210 // compiling corlib.
2215 "Cannot take the address or size of a variable of a managed type ('" +
2216 CSharpName (t) + "')");
2221 /// Returns the name of the indexer in a given type.
2224 /// The default is not always `Item'. The user can change this behaviour by
2225 /// using the DefaultMemberAttribute in the class.
2227 /// For example, the String class indexer is named `Chars' not `Item'
2229 public static string IndexerPropertyName (Type t)
2231 if (t is TypeBuilder) {
2232 if (t.IsInterface) {
2233 Interface i = LookupInterface (t);
2235 if ((i == null) || (i.IndexerName == null))
2238 return i.IndexerName;
2240 TypeContainer tc = LookupTypeContainer (t);
2242 if ((tc == null) || (tc.IndexerName == null))
2245 return tc.IndexerName;
2249 System.Attribute attr = System.Attribute.GetCustomAttribute (
2250 t, TypeManager.default_member_type);
2252 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
2253 return dma.MemberName;
2259 static MethodInfo pinned_method = null;
2260 public static void MakePinned (LocalBuilder builder)
2262 if (pinned_method == null) {
2263 pinned_method = typeof (LocalBuilder).GetMethod ("MakePinned", BindingFlags.Instance | BindingFlags.NonPublic);
2264 if (pinned_method == null) {
2265 Report.Warning (-24, new Location (-1), "Microsoft.NET does not support making pinned variables." +
2266 "This code may cause errors on a runtime with a moving GC");
2272 pinned_method.Invoke (builder, null);
2277 // Returns whether the array of memberinfos contains the given method
2279 public static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
2281 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
2283 foreach (MethodBase method in array) {
2284 if (method.Name != new_method.Name)
2287 if (method is MethodInfo && new_method is MethodInfo)
2288 if (((MethodInfo) method).ReturnType != ((MethodInfo) new_method).ReturnType)
2292 Type [] old_args = TypeManager.GetArgumentTypes (method);
2293 int old_count = old_args.Length;
2296 if (new_args.Length != old_count)
2299 for (i = 0; i < old_count; i++){
2300 if (old_args [i] != new_args [i])
2313 // We copy methods from `new_members' into `target_list' if the signature
2314 // for the method from in the new list does not exist in the target_list
2316 // The name is assumed to be the same.
2318 public static ArrayList CopyNewMethods (ArrayList target_list, IList new_members)
2320 if (target_list == null){
2321 target_list = new ArrayList ();
2323 foreach (MemberInfo mi in new_members){
2324 if (mi is MethodBase)
2325 target_list.Add (mi);
2330 MemberInfo [] target_array = new MemberInfo [target_list.Count];
2331 target_list.CopyTo (target_array, 0);
2333 foreach (MemberInfo mi in new_members){
2334 MethodBase new_method = (MethodBase) mi;
2336 if (!ArrayContainsMethod (target_array, new_method))
2337 target_list.Add (new_method);
2343 public enum MethodFlags {
2344 ShouldIgnore = 1 << 2
2348 // Returns the TypeManager.MethodFlags for this method.
2349 // This emits an error 619 / warning 618 if the method is obsolete.
2350 // In the former case, TypeManager.MethodFlags.IsObsoleteError is returned.
2352 static public MethodFlags GetMethodFlags (MethodBase mb, Location loc)
2354 MethodFlags flags = 0;
2356 if (mb.DeclaringType is TypeBuilder){
2357 MethodData method = (MethodData) builder_to_method [mb];
2358 if (method == null) {
2359 // FIXME: implement Obsolete attribute on Property,
2360 // Indexer and Event.
2364 return method.GetMethodFlags (loc);
2367 object [] attrs = mb.GetCustomAttributes (true);
2368 foreach (object ta in attrs){
2369 if (!(ta is System.Attribute)){
2370 Console.WriteLine ("Unknown type in GetMethodFlags: " + ta);
2373 System.Attribute a = (System.Attribute) ta;
2376 // Skip over conditional code.
2378 if (a.TypeId == TypeManager.conditional_attribute_type){
2379 ConditionalAttribute ca = (ConditionalAttribute) a;
2381 if (RootContext.AllDefines [ca.ConditionString] == null)
2382 flags |= MethodFlags.ShouldIgnore;
2389 #region MemberLookup implementation
2392 // Whether we allow private members in the result (since FindMembers
2393 // uses NonPublic for both protected and private), we need to distinguish.
2395 static bool closure_private_ok;
2398 // Who is invoking us and which type is being queried currently.
2400 static Type closure_invocation_type;
2401 static Type closure_qualifier_type;
2404 // The assembly that defines the type is that is calling us
2406 static Assembly closure_invocation_assembly;
2408 static internal bool FilterNone (MemberInfo m, object filter_criteria)
2414 // This filter filters by name + whether it is ok to include private
2415 // members in the search
2417 static internal bool FilterWithClosure (MemberInfo m, object filter_criteria)
2420 // Hack: we know that the filter criteria will always be in the `closure'
2424 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2427 if (((closure_qualifier_type == null) || (closure_qualifier_type == closure_invocation_type)) &&
2428 (m.DeclaringType == closure_invocation_type))
2432 // Ugly: we need to find out the type of `m', and depending
2433 // on this, tell whether we accept or not
2435 if (m is MethodBase){
2436 MethodBase mb = (MethodBase) m;
2437 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2439 if (ma == MethodAttributes.Private)
2440 return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
2441 IsNestedChildOf (closure_invocation_type, m.DeclaringType);
2444 // FamAndAssem requires that we not only derivate, but we are on the
2447 if (ma == MethodAttributes.FamANDAssem){
2448 if (closure_invocation_assembly != mb.DeclaringType.Assembly)
2452 // Assembly and FamORAssem succeed if we're in the same assembly.
2453 if ((ma == MethodAttributes.Assembly) || (ma == MethodAttributes.FamORAssem)){
2454 if (closure_invocation_assembly == mb.DeclaringType.Assembly)
2458 // We already know that we aren't in the same assembly.
2459 if (ma == MethodAttributes.Assembly)
2462 // Family and FamANDAssem require that we derive.
2463 if ((ma == MethodAttributes.Family) || (ma == MethodAttributes.FamANDAssem)){
2464 if (closure_invocation_type == null)
2467 if (!IsSubclassOrNestedChildOf (closure_invocation_type, mb.DeclaringType))
2470 // Although a derived class can access protected members of its base class
2471 // it cannot do so through an instance of the base class (CS1540).
2472 if (!mb.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
2473 (closure_qualifier_type != null) &&
2474 closure_invocation_type.IsSubclassOf (closure_qualifier_type) &&
2475 !TypeManager.IsNestedChildOf (closure_invocation_type, closure_qualifier_type))
2485 if (m is FieldInfo){
2486 FieldInfo fi = (FieldInfo) m;
2487 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2489 if (fa == FieldAttributes.Private)
2490 return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
2491 IsNestedChildOf (closure_invocation_type, m.DeclaringType);
2494 // FamAndAssem requires that we not only derivate, but we are on the
2497 if (fa == FieldAttributes.FamANDAssem){
2498 if (closure_invocation_assembly != fi.DeclaringType.Assembly)
2502 // Assembly and FamORAssem succeed if we're in the same assembly.
2503 if ((fa == FieldAttributes.Assembly) || (fa == FieldAttributes.FamORAssem)){
2504 if (closure_invocation_assembly == fi.DeclaringType.Assembly)
2508 // We already know that we aren't in the same assembly.
2509 if (fa == FieldAttributes.Assembly)
2512 // Family and FamANDAssem require that we derive.
2513 if ((fa == FieldAttributes.Family) || (fa == FieldAttributes.FamANDAssem)){
2514 if (closure_invocation_type == null)
2517 if (!IsSubclassOrNestedChildOf (closure_invocation_type, fi.DeclaringType))
2520 // Although a derived class can access protected members of its base class
2521 // it cannot do so through an instance of the base class (CS1540).
2522 if (!fi.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
2523 (closure_qualifier_type != null) &&
2524 closure_invocation_type.IsSubclassOf (closure_qualifier_type) &&
2525 !TypeManager.IsNestedChildOf (closure_invocation_type, closure_qualifier_type))
2536 // EventInfos and PropertyInfos, return true because they lack permission
2537 // informaiton, so we need to check later on the methods.
2542 static MemberFilter FilterWithClosure_delegate = new MemberFilter (FilterWithClosure);
2543 static MemberFilter FilterNone_delegate = new MemberFilter (FilterNone);
2546 // Looks up a member called `name' in the `queried_type'. This lookup
2547 // is done by code that is contained in the definition for `invocation_type'
2548 // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
2550 // `invocation_type' is used to check whether we're allowed to access the requested
2551 // member wrt its protection level.
2553 // When called from MemberAccess, `qualifier_type' is the type which is used to access
2554 // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
2555 // is B and qualifier_type is A). This is used to do the CS1540 check.
2557 // When resolving a SimpleName, `qualifier_type' is null.
2559 // The `qualifier_type' is used for the CS1540 check; it's normally either null or
2560 // the same than `queried_type' - except when we're being called from BaseAccess;
2561 // in this case, `invocation_type' is the current type and `queried_type' the base
2562 // type, so this'd normally trigger a CS1540.
2564 // The binding flags are `bf' and the kind of members being looked up are `mt'
2566 // The return value always includes private members which code in `invocation_type'
2567 // is allowed to access (using the specified `qualifier_type' if given); only use
2568 // BindingFlags.NonPublic to bypass the permission check.
2570 // Returns an array of a single element for everything but Methods/Constructors
2571 // that might return multiple matches.
2573 public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_type,
2574 Type queried_type, MemberTypes mt,
2575 BindingFlags original_bf, string name)
2577 Timer.StartTimer (TimerType.MemberLookup);
2579 MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_type,
2580 queried_type, mt, original_bf, name);
2582 Timer.StopTimer (TimerType.MemberLookup);
2587 static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_type,
2588 Type queried_type, MemberTypes mt,
2589 BindingFlags original_bf, string name)
2591 BindingFlags bf = original_bf;
2593 ArrayList method_list = null;
2594 Type current_type = queried_type;
2595 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2596 bool skip_iface_check = true, used_cache = false;
2597 bool always_ok_flag = false;
2599 closure_invocation_type = invocation_type;
2600 closure_invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2601 closure_qualifier_type = qualifier_type;
2604 // If we are a nested class, we always have access to our container
2607 if (invocation_type != null){
2608 string invocation_name = invocation_type.FullName;
2609 if (invocation_name.IndexOf ('+') != -1){
2610 string container = queried_type.FullName + "+";
2611 int container_length = container.Length;
2613 if (invocation_name.Length > container_length){
2614 string shared = invocation_name.Substring (0, container_length);
2616 if (shared == container)
2617 always_ok_flag = true;
2622 // This is from the first time we find a method
2623 // in most cases, we do not actually find a method in the base class
2624 // so we can just ignore it, and save the arraylist allocation
2625 MemberInfo [] first_members_list = null;
2626 bool use_first_members_list = false;
2632 // `NonPublic' is lame, because it includes both protected and
2633 // private methods, so we need to control this behavior by
2634 // explicitly tracking if a private method is ok or not.
2636 // The possible cases are:
2637 // public, private and protected (internal does not come into the
2640 if ((invocation_type != null) &&
2641 ((invocation_type == current_type) ||
2642 IsNestedChildOf (invocation_type, current_type)) ||
2644 bf = original_bf | BindingFlags.NonPublic;
2648 closure_private_ok = (original_bf & BindingFlags.NonPublic) != 0;
2650 Timer.StopTimer (TimerType.MemberLookup);
2652 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2654 Timer.StartTimer (TimerType.MemberLookup);
2657 // When queried for an interface type, the cache will automatically check all
2658 // inherited members, so we don't need to do this here. However, this only
2659 // works if we already used the cache in the first iteration of this loop.
2661 // If we used the cache in any further iteration, we can still terminate the
2662 // loop since the cache always looks in all parent classes.
2668 skip_iface_check = false;
2670 if (current_type == TypeManager.object_type)
2673 current_type = current_type.BaseType;
2676 // This happens with interfaces, they have a null
2677 // basetype. Look members up in the Object class.
2679 if (current_type == null)
2680 current_type = TypeManager.object_type;
2683 if (list.Length == 0)
2687 // Events and types are returned by both `static' and `instance'
2688 // searches, which means that our above FindMembers will
2689 // return two copies of the same.
2691 if (list.Length == 1 && !(list [0] is MethodBase)){
2696 // Multiple properties: we query those just to find out the indexer
2699 if (list [0] is PropertyInfo)
2703 // We found an event: the cache lookup returns both the event and
2704 // its private field.
2706 if (list [0] is EventInfo) {
2707 if ((list.Length == 2) && (list [1] is FieldInfo))
2708 return new MemberInfo [] { list [0] };
2715 // We found methods, turn the search into "method scan"
2719 if (first_members_list != null) {
2720 if (use_first_members_list) {
2721 method_list = CopyNewMethods (method_list, first_members_list);
2722 use_first_members_list = false;
2725 method_list = CopyNewMethods (method_list, list);
2727 first_members_list = list;
2728 use_first_members_list = true;
2729 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2731 } while (searching);
2733 if (use_first_members_list) {
2734 foreach (MemberInfo mi in first_members_list) {
2735 if (! (mi is MethodBase)) {
2736 method_list = CopyNewMethods (method_list, first_members_list);
2737 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2740 return (MemberInfo []) first_members_list;
2743 if (method_list != null && method_list.Count > 0)
2744 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2747 // This happens if we already used the cache in the first iteration, in this case
2748 // the cache already looked in all interfaces.
2750 if (skip_iface_check)
2754 // Interfaces do not list members they inherit, so we have to
2757 if (!queried_type.IsInterface)
2760 if (queried_type.IsArray)
2761 queried_type = TypeManager.array_type;
2763 TypeExpr [] ifaces = GetInterfaces (queried_type);
2767 foreach (TypeExpr itype in ifaces){
2770 x = MemberLookup (null, null, itype.Type, mt, bf, name);
2779 // This is used to extract properties and event declarations from a type
2781 static MemberInfo [] SpecialContainerLookup (Type t, bool is_static)
2783 BindingFlags bf = BindingFlags.DeclaredOnly | (is_static ? BindingFlags.Static : BindingFlags.Instance);
2785 bf |= BindingFlags.Public | BindingFlags.NonPublic;
2787 if (t is TypeBuilder) {
2788 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
2790 return (MemberInfo []) decl.FindMembers (
2791 MemberTypes.Property | MemberTypes.Event,
2792 bf, FilterNone_delegate, null);
2794 return t.FindMembers (MemberTypes.Property | MemberTypes.Event,
2795 bf, FilterNone_delegate, null);
2800 public static bool IsSpecialMethod (MethodBase mb)
2802 Type t = mb.DeclaringType;
2804 MemberInfo [] matches = TypeManager.SpecialContainerLookup (t, mb.IsStatic);
2805 if (matches == null)
2808 foreach (MemberInfo mi in matches){
2809 if (mi is PropertyBuilder){
2810 Pair p = (Pair) properties [mi];
2812 if (p.First == mb || p.Second == mb)
2814 } else if (mi is PropertyInfo){
2815 MethodInfo [] methods = ((PropertyInfo) mi).GetAccessors (true);
2817 foreach (MethodInfo m in methods){
2821 } else if (mi is MyEventBuilder){
2822 Pair p = (Pair) events [mi];
2824 if (p.First == mb || p.Second == mb)
2826 } else if (mi is EventInfo){
2827 EventInfo ei = ((EventInfo) mi);
2829 if (ei.GetAddMethod (true) == mb)
2832 if (ei.GetRemoveMethod (true) == mb)
2835 if (ei.GetRaiseMethod (true) == mb)
2841 // Now check if it is an operator method
2845 if (s.StartsWith ("op_")){
2846 foreach (string name in Unary.oper_names){
2851 foreach (string name in Binary.oper_names){
2865 /// There is exactly one instance of this class per type.
2867 public sealed class TypeHandle : IMemberContainer {
2868 public readonly TypeHandle BaseType;
2870 readonly int id = ++next_id;
2871 static int next_id = 0;
2874 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2875 /// a TypeHandle yet, a new instance of it is created. This static method
2876 /// ensures that we'll only have one TypeHandle instance per type.
2878 public static TypeHandle GetTypeHandle (Type t)
2880 TypeHandle handle = (TypeHandle) type_hash [t];
2884 handle = new TypeHandle (t);
2885 type_hash.Add (t, handle);
2889 public static void CleanUp ()
2895 /// Returns the TypeHandle for TypeManager.object_type.
2897 public static IMemberContainer ObjectType {
2899 if (object_type != null)
2902 object_type = GetTypeHandle (TypeManager.object_type);
2909 /// Returns the TypeHandle for TypeManager.array_type.
2911 public static IMemberContainer ArrayType {
2913 if (array_type != null)
2916 array_type = GetTypeHandle (TypeManager.array_type);
2922 private static PtrHashtable type_hash = new PtrHashtable ();
2924 private static TypeHandle object_type = null;
2925 private static TypeHandle array_type = null;
2928 private bool is_interface;
2929 private MemberCache member_cache;
2931 private TypeHandle (Type type)
2934 if (type.BaseType != null)
2935 BaseType = GetTypeHandle (type.BaseType);
2936 this.is_interface = type.IsInterface;
2937 this.member_cache = new MemberCache (this);
2940 // IMemberContainer methods
2942 public string Name {
2944 return type.FullName;
2954 public IMemberContainer Parent {
2960 public bool IsInterface {
2962 return is_interface;
2966 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
2968 MemberInfo [] members;
2969 if (mt == MemberTypes.Event)
2970 members = type.GetEvents (bf | BindingFlags.DeclaredOnly);
2972 members = type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
2974 Array.Reverse (members);
2976 return new MemberList (members);
2979 // IMemberFinder methods
2981 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
2982 MemberFilter filter, object criteria)
2984 return new MemberList (member_cache.FindMembers (mt, bf, name, filter, criteria));
2987 public MemberCache MemberCache {
2989 return member_cache;
2993 public override string ToString ()
2995 if (BaseType != null)
2996 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
2998 return "TypeHandle (" + id + "," + Name + ")";