2 // typemanager.cs: C# type manager
4 // Author: Miguel de Icaza (miguel@gnu.org)
5 // Ravi Pratap (ravi@ximian.com)
7 // Licensed under the terms of the GNU GPL
9 // (C) 2001 Ximian, Inc (http://www.ximian.com)
14 // We will eventually remove the SIMPLE_SPEEDUP, and should never change
15 // the behavior of the compilation. This can be removed if we rework
16 // the code to get a list of namespaces available.
18 #define SIMPLE_SPEEDUP
22 using System.Globalization;
23 using System.Collections;
24 using System.Reflection;
25 using System.Reflection.Emit;
27 using System.Text.RegularExpressions;
28 using System.Runtime.CompilerServices;
29 using System.Diagnostics;
31 namespace Mono.CSharp {
33 public class TypeManager {
35 // A list of core types that the compiler requires or uses
37 static public Type object_type;
38 static public Type value_type;
39 static public Type string_type;
40 static public Type int32_type;
41 static public Type uint32_type;
42 static public Type int64_type;
43 static public Type uint64_type;
44 static public Type float_type;
45 static public Type double_type;
46 static public Type char_type;
47 static public Type char_ptr_type;
48 static public Type short_type;
49 static public Type decimal_type;
50 static public Type bool_type;
51 static public Type sbyte_type;
52 static public Type byte_type;
53 static public Type ushort_type;
54 static public Type enum_type;
55 static public Type delegate_type;
56 static public Type multicast_delegate_type;
57 static public Type void_type;
58 static public Type enumeration_type;
59 static public Type array_type;
60 static public Type runtime_handle_type;
61 static public Type icloneable_type;
62 static public Type type_type;
63 static public Type ienumerator_type;
64 static public Type ienumerable_type;
65 static public Type idisposable_type;
66 static public Type iconvertible_type;
67 static public Type default_member_type;
68 static public Type iasyncresult_type;
69 static public Type asynccallback_type;
70 static public Type intptr_type;
71 static public Type monitor_type;
72 static public Type runtime_field_handle_type;
73 static public Type runtime_argument_handle_type;
74 static public Type attribute_type;
75 static public Type attribute_usage_type;
76 static public Type dllimport_type;
77 static public Type unverifiable_code_type;
78 static public Type methodimpl_attr_type;
79 static public Type marshal_as_attr_type;
80 static public Type param_array_type;
81 static public Type guid_attr_type;
82 static public Type void_ptr_type;
83 static public Type indexer_name_type;
84 static public Type exception_type;
85 static public Type invalid_operation_exception_type;
86 static public Type not_supported_exception_type;
87 static public Type obsolete_attribute_type;
88 static public Type conditional_attribute_type;
89 static public Type in_attribute_type;
90 static public Type anonymous_method_type;
91 static public Type cls_compliant_attribute_type;
92 static public Type typed_reference_type;
93 static public Type arg_iterator_type;
94 static public Type mbr_type;
95 static public Type struct_layout_attribute_type;
96 static public Type field_offset_attribute_type;
97 static public Type security_attr_type;
100 // An empty array of types
102 static public Type [] NoTypes;
103 static public TypeExpr [] NoTypeExprs;
107 // Expressions representing the internal types. Used during declaration
110 static public TypeExpr system_object_expr, system_string_expr;
111 static public TypeExpr system_boolean_expr, system_decimal_expr;
112 static public TypeExpr system_single_expr, system_double_expr;
113 static public TypeExpr system_sbyte_expr, system_byte_expr;
114 static public TypeExpr system_int16_expr, system_uint16_expr;
115 static public TypeExpr system_int32_expr, system_uint32_expr;
116 static public TypeExpr system_int64_expr, system_uint64_expr;
117 static public TypeExpr system_char_expr, system_void_expr;
118 static public TypeExpr system_asynccallback_expr;
119 static public TypeExpr system_iasyncresult_expr;
120 static public TypeExpr system_valuetype_expr;
121 static public TypeExpr system_intptr_expr;
124 // This is only used when compiling corlib
126 static public Type system_int32_type;
127 static public Type system_array_type;
128 static public Type system_type_type;
129 static public Type system_assemblybuilder_type;
130 static public MethodInfo system_int_array_get_length;
131 static public MethodInfo system_int_array_get_rank;
132 static public MethodInfo system_object_array_clone;
133 static public MethodInfo system_int_array_get_length_int;
134 static public MethodInfo system_int_array_get_lower_bound_int;
135 static public MethodInfo system_int_array_get_upper_bound_int;
136 static public MethodInfo system_void_array_copyto_array_int;
140 // Internal, not really used outside
142 static Type runtime_helpers_type;
145 // These methods are called by code generated by the compiler
147 static public MethodInfo string_concat_string_string;
148 static public MethodInfo string_concat_string_string_string;
149 static public MethodInfo string_concat_string_string_string_string;
150 static public MethodInfo string_concat_string_dot_dot_dot;
151 static public MethodInfo string_concat_object_object;
152 static public MethodInfo string_concat_object_object_object;
153 static public MethodInfo string_concat_object_dot_dot_dot;
154 static public MethodInfo string_isinterneted_string;
155 static public MethodInfo system_type_get_type_from_handle;
156 static public MethodInfo object_getcurrent_void;
157 static public MethodInfo bool_movenext_void;
158 static public MethodInfo ienumerable_getenumerator_void;
159 static public MethodInfo void_reset_void;
160 static public MethodInfo void_dispose_void;
161 static public MethodInfo void_monitor_enter_object;
162 static public MethodInfo void_monitor_exit_object;
163 static public MethodInfo void_initializearray_array_fieldhandle;
164 static public MethodInfo int_getlength_int;
165 static public MethodInfo delegate_combine_delegate_delegate;
166 static public MethodInfo delegate_remove_delegate_delegate;
167 static public MethodInfo int_get_offset_to_string_data;
168 static public MethodInfo int_array_get_length;
169 static public MethodInfo int_array_get_rank;
170 static public MethodInfo object_array_clone;
171 static public MethodInfo int_array_get_length_int;
172 static public MethodInfo int_array_get_lower_bound_int;
173 static public MethodInfo int_array_get_upper_bound_int;
174 static public MethodInfo void_array_copyto_array_int;
177 // The attribute constructors.
179 static public ConstructorInfo object_ctor;
180 static public ConstructorInfo cons_param_array_attribute;
181 static public ConstructorInfo void_decimal_ctor_five_args;
182 static public ConstructorInfo unverifiable_code_ctor;
183 static public ConstructorInfo invalid_operation_ctor;
184 static public ConstructorInfo default_member_ctor;
187 // Holds the Array of Assemblies that have been loaded
188 // (either because it is the default or the user used the
189 // -r command line option)
191 static Assembly [] assemblies;
194 // Keeps a list of modules. We used this to do lookups
195 // on the module using GetType -- needed for arrays
197 static Module [] modules;
200 // This is the type_cache from the assemblies to avoid
201 // hitting System.Reflection on every lookup.
203 static Hashtable types;
206 // This is used to hotld the corresponding TypeContainer objects
207 // since we need this in FindMembers
209 static Hashtable typecontainers;
212 // Keeps track of those types that are defined by the
215 static ArrayList user_types;
217 static PtrHashtable builder_to_declspace;
220 // Tracks the interfaces implemented by typebuilders. We only
221 // enter those who do implement or or more interfaces
223 static PtrHashtable builder_to_ifaces;
226 // Maps MethodBase.RuntimeTypeHandle to a Type array that contains
227 // the arguments to the method
229 static Hashtable method_arguments;
232 // Maps PropertyBuilder to a Type array that contains
233 // the arguments to the indexer
235 static Hashtable indexer_arguments;
238 // Maybe `method_arguments' should be replaced and only
239 // method_internal_params should be kept?
241 static Hashtable method_internal_params;
244 // Keeps track of methods
247 static Hashtable builder_to_method;
250 // Contains all public types from referenced assemblies.
251 // This member is used only if CLS Compliance verification is required.
253 public static Hashtable all_imported_types;
260 public static void CleanUp ()
262 // Lets get everything clean so that we can collect before generating code
266 typecontainers = null;
268 builder_to_declspace = null;
269 builder_to_ifaces = null;
270 method_arguments = null;
271 indexer_arguments = null;
272 method_internal_params = null;
273 builder_to_method = null;
277 negative_hits = null;
278 builder_to_constant = null;
279 fieldbuilders_to_fields = null;
281 priv_fields_events = null;
284 TypeHandle.CleanUp ();
288 /// A filter for Findmembers that uses the Signature object to
291 static bool SignatureFilter (MemberInfo mi, object criteria)
293 Signature sig = (Signature) criteria;
295 if (!(mi is MethodBase))
298 if (mi.Name != sig.name)
301 int count = sig.args.Length;
303 if (mi is MethodBuilder || mi is ConstructorBuilder){
304 Type [] candidate_args = GetArgumentTypes ((MethodBase) mi);
306 if (candidate_args.Length != count)
309 for (int i = 0; i < count; i++)
310 if (candidate_args [i] != sig.args [i])
315 ParameterInfo [] pars = ((MethodBase) mi).GetParameters ();
317 if (pars.Length != count)
320 for (int i = 0; i < count; i++)
321 if (pars [i].ParameterType != sig.args [i])
327 // A delegate that points to the filter above.
328 static MemberFilter signature_filter;
331 // These are expressions that represent some of the internal data types, used
334 static void InitExpressionTypes ()
336 system_object_expr = new TypeLookupExpression ("System.Object");
337 system_string_expr = new TypeLookupExpression ("System.String");
338 system_boolean_expr = new TypeLookupExpression ("System.Boolean");
339 system_decimal_expr = new TypeLookupExpression ("System.Decimal");
340 system_single_expr = new TypeLookupExpression ("System.Single");
341 system_double_expr = new TypeLookupExpression ("System.Double");
342 system_sbyte_expr = new TypeLookupExpression ("System.SByte");
343 system_byte_expr = new TypeLookupExpression ("System.Byte");
344 system_int16_expr = new TypeLookupExpression ("System.Int16");
345 system_uint16_expr = new TypeLookupExpression ("System.UInt16");
346 system_int32_expr = new TypeLookupExpression ("System.Int32");
347 system_uint32_expr = new TypeLookupExpression ("System.UInt32");
348 system_int64_expr = new TypeLookupExpression ("System.Int64");
349 system_uint64_expr = new TypeLookupExpression ("System.UInt64");
350 system_char_expr = new TypeLookupExpression ("System.Char");
351 system_void_expr = new TypeLookupExpression ("System.Void");
352 system_asynccallback_expr = new TypeLookupExpression ("System.AsyncCallback");
353 system_iasyncresult_expr = new TypeLookupExpression ("System.IAsyncResult");
354 system_valuetype_expr = new TypeLookupExpression ("System.ValueType");
355 system_intptr_expr = new TypeLookupExpression ("System.IntPtr");
358 static TypeManager ()
360 assemblies = new Assembly [0];
362 user_types = new ArrayList ();
364 types = new Hashtable ();
365 typecontainers = new Hashtable ();
367 builder_to_declspace = new PtrHashtable ();
368 builder_to_method = new PtrHashtable ();
369 method_arguments = new PtrHashtable ();
370 method_internal_params = new PtrHashtable ();
371 indexer_arguments = new PtrHashtable ();
372 builder_to_ifaces = new PtrHashtable ();
374 NoTypes = new Type [0];
375 NoTypeExprs = new TypeExpr [0];
377 signature_filter = new MemberFilter (SignatureFilter);
378 InitExpressionTypes ();
381 public static void HandleDuplicate (string name, Type t)
383 Type prev = (Type) types [name];
384 TypeContainer tc = builder_to_declspace [prev] as TypeContainer;
388 // This probably never happens, as we catch this before
390 Report.Error (-17, "The type `" + name + "' has already been defined.");
394 tc = builder_to_declspace [t] as TypeContainer;
397 1595, "The type `" + name + "' is defined in an existing assembly;"+
398 " Using the new definition from: " + tc.Location);
401 1595, "The type `" + name + "' is defined in an existing assembly;");
404 Report.Warning (1595, "Previously defined in: " + prev.Assembly.FullName);
410 public static void AddUserType (string name, TypeBuilder t, TypeExpr[] ifaces)
415 HandleDuplicate (name, t);
420 builder_to_ifaces [t] = ifaces;
424 // This entry point is used by types that we define under the covers
426 public static void RegisterBuilder (TypeBuilder tb, TypeExpr [] ifaces)
429 builder_to_ifaces [tb] = ifaces;
432 public static void AddUserType (string name, TypeBuilder t, TypeContainer tc, TypeExpr [] ifaces)
434 builder_to_declspace.Add (t, tc);
435 typecontainers.Add (name, tc);
436 AddUserType (name, t, ifaces);
439 public static void AddDelegateType (string name, TypeBuilder t, Delegate del)
444 HandleDuplicate (name, t);
447 builder_to_declspace.Add (t, del);
450 public static void AddEnumType (string name, TypeBuilder t, Enum en)
455 HandleDuplicate (name, t);
457 builder_to_declspace.Add (t, en);
460 public static void AddUserInterface (string name, TypeBuilder t, Interface i, TypeExpr [] ifaces)
462 AddUserType (name, t, ifaces);
463 builder_to_declspace.Add (t, i);
467 public static void AddMethod (MethodBase builder, IMethodData method)
469 builder_to_method.Add (builder, method);
472 public static IMethodData GetMethod (MethodBase builder)
474 return (IMethodData) builder_to_method [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;
496 /// Fills member container from base interfaces
498 public static IMemberContainer LookupInterfaceContainer (Type[] types)
503 IMemberContainer complete = null;
504 foreach (Type t in types) {
505 IMemberContainer one_type_cont = null;
506 if (t is TypeBuilder) {
507 one_type_cont = builder_to_declspace [t] as IMemberContainer;
509 one_type_cont = TypeHandle.GetTypeHandle (t);
511 if (complete == null) {
512 complete = one_type_cont;
516 // We need to avoid including same member more than once
517 foreach (DictionaryEntry de in one_type_cont.MemberCache.Members) {
518 object o = complete.MemberCache.Members [de.Key];
520 complete.MemberCache.Members.Add (de.Key, de.Value);
524 ArrayList al_old = (ArrayList)o;
525 ArrayList al_new = (ArrayList)de.Value;
527 foreach (MemberCache.CacheEntry ce in al_new) {
529 foreach (MemberCache.CacheEntry ce_old in al_old) {
530 if (ce.Member == ce_old.Member) {
543 public static IMemberContainer LookupMemberContainer (Type t)
545 if (t is TypeBuilder) {
546 IMemberContainer container = builder_to_declspace [t] as IMemberContainer;
547 if (container != null)
551 return TypeHandle.GetTypeHandle (t);
554 public static TypeContainer LookupInterface (Type t)
556 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
557 if ((tc == null) || (tc.Kind != Kind.Interface))
563 public static Delegate LookupDelegate (Type t)
565 return builder_to_declspace [t] as Delegate;
568 public static Enum LookupEnum (Type t)
570 return builder_to_declspace [t] as Enum;
573 public static Class LookupClass (Type t)
575 return (Class) builder_to_declspace [t];
579 /// Registers an assembly to load types from.
581 public static void AddAssembly (Assembly a)
583 foreach (Assembly assembly in assemblies) {
588 int top = assemblies.Length;
589 Assembly [] n = new Assembly [top + 1];
591 assemblies.CopyTo (n, 0);
597 public static Assembly [] GetAssemblies ()
603 /// Registers a module builder to lookup types from
605 public static void AddModule (Module mb)
607 int top = modules != null ? modules.Length : 0;
608 Module [] n = new Module [top + 1];
611 modules.CopyTo (n, 0);
616 public static Module[] Modules {
622 static Hashtable references = new Hashtable ();
625 // Gets the reference to T version of the Type (T&)
627 public static Type GetReferenceType (Type t)
629 string tname = t.FullName + "&";
631 Type ret = t.Assembly.GetType (tname);
634 // If the type comes from the assembly we are building
635 // We need the Hashtable, because .NET 1.1 will return different instance types
636 // every time we call ModuleBuilder.GetType.
639 if (references [t] == null)
640 references [t] = CodeGen.Module.Builder.GetType (tname);
641 ret = (Type) references [t];
647 static Hashtable pointers = new Hashtable ();
650 // Gets the pointer to T version of the Type (T*)
652 public static Type GetPointerType (Type t)
654 string tname = t.FullName + "*";
656 Type ret = t.Assembly.GetType (tname);
659 // If the type comes from the assembly we are building
660 // We need the Hashtable, because .NET 1.1 will return different instance types
661 // every time we call ModuleBuilder.GetType.
664 if (pointers [t] == null)
665 pointers [t] = CodeGen.Module.Builder.GetType (tname);
667 ret = (Type) pointers [t];
674 // Low-level lookup, cache-less
676 static Type LookupTypeReflection (string name)
680 foreach (Assembly a in assemblies){
681 t = a.GetType (name);
686 TypeAttributes ta = t.Attributes & TypeAttributes.VisibilityMask;
687 if (ta == TypeAttributes.NotPublic ||
688 ta == TypeAttributes.NestedPrivate ||
689 ta == TypeAttributes.NestedAssembly ||
690 ta == TypeAttributes.NestedFamANDAssem){
693 // In .NET pointers turn out to be private, even if their
694 // element type is not
697 t = t.GetElementType ();
707 foreach (Module mb in modules) {
708 t = mb.GetType (name);
716 static Hashtable negative_hits = new Hashtable ();
719 // This function is used when you want to avoid the lookups, and want to go
720 // directly to the source. This will use the cache.
722 // Notice that bypassing the cache is bad, because on Microsoft.NET runtime
723 // GetType ("DynamicType[]") != GetType ("DynamicType[]"), and there is no
724 // way to test things other than doing a fullname compare
726 public static Type LookupTypeDirect (string name)
728 Type t = (Type) types [name];
732 if (negative_hits.Contains (name))
735 t = LookupTypeReflection (name);
738 negative_hits [name] = null;
745 static readonly char [] dot_array = { '.' };
748 /// Returns the Type associated with @name, takes care of the fact that
749 /// reflection expects nested types to be separated from the main type
750 /// with a "+" instead of a "."
752 public static Type LookupType (string name)
757 // First lookup in user defined and cached values
760 t = (Type) types [name];
764 // Two thirds of the failures are caught here.
765 if (negative_hits.Contains (name))
768 // Sadly, split takes a param array, so this ends up allocating *EVERY TIME*
769 string [] elements = name.Split (dot_array);
770 int count = elements.Length;
772 for (int n = 1; n <= count; n++){
773 string top_level_type = String.Join (".", elements, 0, n);
775 // One third of the failures are caught here.
776 if (negative_hits.Contains (top_level_type))
779 t = (Type) types [top_level_type];
781 t = LookupTypeReflection (top_level_type);
783 negative_hits [top_level_type] = null;
794 // We know that System.Object does not have children, and since its the parent of
795 // all the objects, it always gets probbed for inner classes.
797 if (top_level_type == "System.Object")
800 string newt = top_level_type + "+" + String.Join ("+", elements, n, count - n);
801 //Console.WriteLine ("Looking up: " + newt + " " + name);
802 t = LookupTypeReflection (newt);
804 negative_hits [name] = null;
809 negative_hits [name] = null;
814 /// Computes the namespaces that we import from the assemblies we reference.
816 public static void ComputeNamespaces ()
818 MethodInfo assembly_get_namespaces = typeof (Assembly).GetMethod ("GetNamespaces", BindingFlags.Instance|BindingFlags.NonPublic);
821 // First add the assembly namespaces
823 if (assembly_get_namespaces != null){
824 int count = assemblies.Length;
826 for (int i = 0; i < count; i++){
827 Assembly a = assemblies [i];
828 string [] namespaces = (string []) assembly_get_namespaces.Invoke (a, null);
829 foreach (string ns in namespaces){
832 Namespace.LookupNamespace (ns, true);
836 Hashtable cache = new Hashtable ();
837 cache.Add ("", null);
838 foreach (Assembly a in assemblies) {
839 foreach (Type t in a.GetExportedTypes ()) {
840 string ns = t.Namespace;
841 if (ns == null || cache.Contains (ns))
844 Namespace.LookupNamespace (ns, true);
845 cache.Add (ns, null);
852 /// Fills static table with exported types from all referenced assemblies.
853 /// This information is required for CLS Compliance tests.
855 public static void LoadAllImportedTypes ()
857 all_imported_types = new Hashtable ();
858 foreach (Assembly a in assemblies) {
859 foreach (Type t in a.GetExportedTypes ()) {
860 all_imported_types [t.FullName] = t;
865 public static bool NamespaceClash (string name, Location loc)
867 if (Namespace.LookupNamespace (name, false) == null)
870 Report.Error (519, loc, String.Format ("`{0}' clashes with a predefined namespace", name));
875 /// Returns the C# name of a type if possible, or the full type name otherwise
877 static public string CSharpName (Type t)
879 return Regex.Replace (t.FullName,
881 @"(Int32|UInt32|Int16|UInt16|Int64|UInt64|" +
882 @"Single|Double|Char|Decimal|Byte|SByte|Object|" +
883 @"Boolean|String|Void|Null)" +
885 new MatchEvaluator (CSharpNameMatch));
888 static String CSharpNameMatch (Match match)
890 string s = match.Groups [1].Captures [0].Value;
892 Replace ("int32", "int").
893 Replace ("uint32", "uint").
894 Replace ("int16", "short").
895 Replace ("uint16", "ushort").
896 Replace ("int64", "long").
897 Replace ("uint64", "ulong").
898 Replace ("single", "float").
899 Replace ("boolean", "bool")
900 + match.Groups [2].Captures [0].Value;
904 /// Returns the signature of the method with full namespace classification
906 static public string GetFullNameSignature (MemberInfo mi)
908 return mi.DeclaringType.FullName.Replace ('+', '.') + '.' + mi.Name;
911 static public string GetFullNameSignature (MethodBase mb)
913 string name = mb.Name;
915 name = mb.DeclaringType.Name;
917 if (mb.IsSpecialName) {
918 if (name.StartsWith ("get_") || name.StartsWith ("set_")) {
919 name = name.Remove (0, 4);
926 return mb.DeclaringType.FullName.Replace ('+', '.') + '.' + name;
930 /// Returns the signature of the property and indexer
932 static public string CSharpSignature (PropertyBuilder pb, bool is_indexer)
935 return GetFullNameSignature (pb);
938 MethodBase mb = pb.GetSetMethod (true) != null ? pb.GetSetMethod (true) : pb.GetGetMethod (true);
939 string signature = GetFullNameSignature (mb);
940 string arg = TypeManager.LookupParametersByBuilder (mb).ParameterDesc (0);
941 return String.Format ("{0}.this[{1}]", signature.Substring (0, signature.LastIndexOf ('.')), arg);
945 /// Returns the signature of the method
947 static public string CSharpSignature (MethodBase mb)
949 StringBuilder sig = new StringBuilder ("(");
952 // FIXME: We should really have a single function to do
953 // everything instead of the following 5 line pattern
955 ParameterData iparams = LookupParametersByBuilder (mb);
958 iparams = new ReflectionParameters (mb);
961 if (mb.IsSpecialName && iparams.Count == 0 && !mb.IsConstructor)
962 return GetFullNameSignature (mb);
964 for (int i = 0; i < iparams.Count; i++) {
968 sig.Append (iparams.ParameterDesc (i));
973 if (mb.IsSpecialName && iparams.Count == 1 && !mb.IsConstructor) {
974 sig.Replace ('(', '[');
975 sig.Replace (')', ']');
978 return GetFullNameSignature (mb) + sig.ToString ();
982 /// Looks up a type, and aborts if it is not found. This is used
983 /// by types required by the compiler
985 static Type CoreLookupType (string name)
987 Type t = LookupTypeDirect (name);
990 Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
991 Environment.Exit (1);
998 /// Returns the MethodInfo for a method named `name' defined
999 /// in type `t' which takes arguments of types `args'
1001 static MethodInfo GetMethod (Type t, string name, Type [] args, bool is_private, bool report_errors)
1005 BindingFlags flags = instance_and_static | BindingFlags.Public;
1011 flags |= BindingFlags.NonPublic;
1013 list = FindMembers (t, MemberTypes.Method, flags, signature_filter, sig);
1014 if (list.Count == 0) {
1016 Report.Error (-19, "Can not find the core function `" + name + "'");
1020 MethodInfo mi = list [0] as MethodInfo;
1023 Report.Error (-19, "Can not find the core function `" + name + "'");
1030 static MethodInfo GetMethod (Type t, string name, Type [] args, bool report_errors)
1032 return GetMethod (t, name, args, false, report_errors);
1035 static MethodInfo GetMethod (Type t, string name, Type [] args)
1037 return GetMethod (t, name, args, true);
1042 /// Returns the ConstructorInfo for "args"
1044 static ConstructorInfo GetConstructor (Type t, Type [] args)
1052 list = FindMembers (t, MemberTypes.Constructor,
1053 instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly,
1054 signature_filter, sig);
1055 if (list.Count == 0){
1056 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
1060 ConstructorInfo ci = list [0] as ConstructorInfo;
1062 Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
1069 public static void InitEnumUnderlyingTypes ()
1072 int32_type = CoreLookupType ("System.Int32");
1073 int64_type = CoreLookupType ("System.Int64");
1074 uint32_type = CoreLookupType ("System.UInt32");
1075 uint64_type = CoreLookupType ("System.UInt64");
1076 byte_type = CoreLookupType ("System.Byte");
1077 sbyte_type = CoreLookupType ("System.SByte");
1078 short_type = CoreLookupType ("System.Int16");
1079 ushort_type = CoreLookupType ("System.UInt16");
1083 /// The types have to be initialized after the initial
1084 /// population of the type has happened (for example, to
1085 /// bootstrap the corlib.dll
1087 public static void InitCoreTypes ()
1089 object_type = CoreLookupType ("System.Object");
1090 value_type = CoreLookupType ("System.ValueType");
1092 InitEnumUnderlyingTypes ();
1094 char_type = CoreLookupType ("System.Char");
1095 string_type = CoreLookupType ("System.String");
1096 float_type = CoreLookupType ("System.Single");
1097 double_type = CoreLookupType ("System.Double");
1098 char_ptr_type = CoreLookupType ("System.Char*");
1099 decimal_type = CoreLookupType ("System.Decimal");
1100 bool_type = CoreLookupType ("System.Boolean");
1101 enum_type = CoreLookupType ("System.Enum");
1103 multicast_delegate_type = CoreLookupType ("System.MulticastDelegate");
1104 delegate_type = CoreLookupType ("System.Delegate");
1106 array_type = CoreLookupType ("System.Array");
1107 void_type = CoreLookupType ("System.Void");
1108 type_type = CoreLookupType ("System.Type");
1110 runtime_field_handle_type = CoreLookupType ("System.RuntimeFieldHandle");
1111 runtime_argument_handle_type = CoreLookupType ("System.RuntimeArgumentHandle");
1112 runtime_helpers_type = CoreLookupType ("System.Runtime.CompilerServices.RuntimeHelpers");
1113 default_member_type = CoreLookupType ("System.Reflection.DefaultMemberAttribute");
1114 runtime_handle_type = CoreLookupType ("System.RuntimeTypeHandle");
1115 asynccallback_type = CoreLookupType ("System.AsyncCallback");
1116 iasyncresult_type = CoreLookupType ("System.IAsyncResult");
1117 ienumerator_type = CoreLookupType ("System.Collections.IEnumerator");
1118 ienumerable_type = CoreLookupType ("System.Collections.IEnumerable");
1119 idisposable_type = CoreLookupType ("System.IDisposable");
1120 icloneable_type = CoreLookupType ("System.ICloneable");
1121 iconvertible_type = CoreLookupType ("System.IConvertible");
1122 monitor_type = CoreLookupType ("System.Threading.Monitor");
1123 intptr_type = CoreLookupType ("System.IntPtr");
1125 attribute_type = CoreLookupType ("System.Attribute");
1126 attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
1127 dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
1128 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
1129 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
1130 param_array_type = CoreLookupType ("System.ParamArrayAttribute");
1131 in_attribute_type = CoreLookupType ("System.Runtime.InteropServices.InAttribute");
1132 typed_reference_type = CoreLookupType ("System.TypedReference");
1133 arg_iterator_type = CoreLookupType ("System.ArgIterator");
1134 mbr_type = CoreLookupType ("System.MarshalByRefObject");
1137 // Sigh. Remove this before the release. Wonder what versions of Mono
1138 // people are running.
1140 guid_attr_type = LookupType ("System.Runtime.InteropServices.GuidAttribute");
1142 unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
1144 void_ptr_type = CoreLookupType ("System.Void*");
1146 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
1148 exception_type = CoreLookupType ("System.Exception");
1149 invalid_operation_exception_type = CoreLookupType ("System.InvalidOperationException");
1150 not_supported_exception_type = CoreLookupType ("System.NotSupportedException");
1155 obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
1156 conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
1157 cls_compliant_attribute_type = CoreLookupType ("System.CLSCompliantAttribute");
1158 struct_layout_attribute_type = CoreLookupType ("System.Runtime.InteropServices.StructLayoutAttribute");
1159 field_offset_attribute_type = CoreLookupType ("System.Runtime.InteropServices.FieldOffsetAttribute");
1160 security_attr_type = CoreLookupType ("System.Security.Permissions.SecurityAttribute");
1163 // When compiling corlib, store the "real" types here.
1165 if (!RootContext.StdLib) {
1166 system_int32_type = typeof (System.Int32);
1167 system_array_type = typeof (System.Array);
1168 system_type_type = typeof (System.Type);
1169 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
1171 Type [] void_arg = { };
1172 system_int_array_get_length = GetMethod (
1173 system_array_type, "get_Length", void_arg);
1174 system_int_array_get_rank = GetMethod (
1175 system_array_type, "get_Rank", void_arg);
1176 system_object_array_clone = GetMethod (
1177 system_array_type, "Clone", void_arg);
1179 Type [] system_int_arg = { system_int32_type };
1180 system_int_array_get_length_int = GetMethod (
1181 system_array_type, "GetLength", system_int_arg);
1182 system_int_array_get_upper_bound_int = GetMethod (
1183 system_array_type, "GetUpperBound", system_int_arg);
1184 system_int_array_get_lower_bound_int = GetMethod (
1185 system_array_type, "GetLowerBound", system_int_arg);
1187 Type [] system_array_int_arg = { system_array_type, system_int32_type };
1188 system_void_array_copyto_array_int = GetMethod (
1189 system_array_type, "CopyTo", system_array_int_arg);
1191 Type [] system_3_type_arg = {
1192 system_type_type, system_type_type, system_type_type };
1193 Type [] system_4_type_arg = {
1194 system_type_type, system_type_type, system_type_type, system_type_type };
1196 MethodInfo set_corlib_type_builders = GetMethod (
1197 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1198 system_4_type_arg, true, false);
1200 if (set_corlib_type_builders != null) {
1201 object[] args = new object [4];
1202 args [0] = object_type;
1203 args [1] = value_type;
1204 args [2] = enum_type;
1205 args [3] = void_type;
1207 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1209 // Compatibility for an older version of the class libs.
1210 set_corlib_type_builders = GetMethod (
1211 system_assemblybuilder_type, "SetCorlibTypeBuilders",
1212 system_3_type_arg, true, true);
1214 if (set_corlib_type_builders == null) {
1215 Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
1219 object[] args = new object [3];
1220 args [0] = object_type;
1221 args [1] = value_type;
1222 args [2] = enum_type;
1224 set_corlib_type_builders.Invoke (CodeGen.Assembly.Builder, args);
1228 system_object_expr.Type = object_type;
1229 system_string_expr.Type = string_type;
1230 system_boolean_expr.Type = bool_type;
1231 system_decimal_expr.Type = decimal_type;
1232 system_single_expr.Type = float_type;
1233 system_double_expr.Type = double_type;
1234 system_sbyte_expr.Type = sbyte_type;
1235 system_byte_expr.Type = byte_type;
1236 system_int16_expr.Type = short_type;
1237 system_uint16_expr.Type = ushort_type;
1238 system_int32_expr.Type = int32_type;
1239 system_uint32_expr.Type = uint32_type;
1240 system_int64_expr.Type = int64_type;
1241 system_uint64_expr.Type = uint64_type;
1242 system_char_expr.Type = char_type;
1243 system_void_expr.Type = void_type;
1244 system_asynccallback_expr.Type = asynccallback_type;
1245 system_iasyncresult_expr.Type = iasyncresult_type;
1246 system_valuetype_expr.Type = value_type;
1249 // These are only used for compare purposes
1251 anonymous_method_type = typeof (AnonymousMethod);
1255 // The helper methods that are used by the compiler
1257 public static void InitCodeHelpers ()
1260 // Now load the default methods that we use.
1262 Type [] string_string = { string_type, string_type };
1263 string_concat_string_string = GetMethod (
1264 string_type, "Concat", string_string);
1265 Type [] string_string_string = { string_type, string_type, string_type };
1266 string_concat_string_string_string = GetMethod (
1267 string_type, "Concat", string_string_string);
1268 Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
1269 string_concat_string_string_string_string = GetMethod (
1270 string_type, "Concat", string_string_string_string);
1271 Type[] params_string = { TypeManager.LookupType ("System.String[]") };
1272 string_concat_string_dot_dot_dot = GetMethod (
1273 string_type, "Concat", params_string);
1275 Type [] object_object = { object_type, object_type };
1276 string_concat_object_object = GetMethod (
1277 string_type, "Concat", object_object);
1278 Type [] object_object_object = { object_type, object_type, object_type };
1279 string_concat_object_object_object = GetMethod (
1280 string_type, "Concat", object_object_object);
1281 Type[] params_object = { TypeManager.LookupType ("System.Object[]") };
1282 string_concat_object_dot_dot_dot = GetMethod (
1283 string_type, "Concat", params_object);
1285 Type [] string_ = { string_type };
1286 string_isinterneted_string = GetMethod (
1287 string_type, "IsInterned", string_);
1289 Type [] runtime_type_handle = { runtime_handle_type };
1290 system_type_get_type_from_handle = GetMethod (
1291 type_type, "GetTypeFromHandle", runtime_type_handle);
1293 Type [] delegate_delegate = { delegate_type, delegate_type };
1294 delegate_combine_delegate_delegate = GetMethod (
1295 delegate_type, "Combine", delegate_delegate);
1297 delegate_remove_delegate_delegate = GetMethod (
1298 delegate_type, "Remove", delegate_delegate);
1303 Type [] void_arg = { };
1304 object_getcurrent_void = GetMethod (
1305 ienumerator_type, "get_Current", void_arg);
1306 bool_movenext_void = GetMethod (
1307 ienumerator_type, "MoveNext", void_arg);
1308 void_reset_void = GetMethod (
1309 ienumerator_type, "Reset", void_arg);
1310 void_dispose_void = GetMethod (
1311 idisposable_type, "Dispose", void_arg);
1312 int_get_offset_to_string_data = GetMethod (
1313 runtime_helpers_type, "get_OffsetToStringData", void_arg);
1314 int_array_get_length = GetMethod (
1315 array_type, "get_Length", void_arg);
1316 int_array_get_rank = GetMethod (
1317 array_type, "get_Rank", void_arg);
1318 ienumerable_getenumerator_void = GetMethod (
1319 ienumerable_type, "GetEnumerator", void_arg);
1324 Type [] int_arg = { int32_type };
1325 int_array_get_length_int = GetMethod (
1326 array_type, "GetLength", int_arg);
1327 int_array_get_upper_bound_int = GetMethod (
1328 array_type, "GetUpperBound", int_arg);
1329 int_array_get_lower_bound_int = GetMethod (
1330 array_type, "GetLowerBound", int_arg);
1333 // System.Array methods
1335 object_array_clone = GetMethod (
1336 array_type, "Clone", void_arg);
1337 Type [] array_int_arg = { array_type, int32_type };
1338 void_array_copyto_array_int = GetMethod (
1339 array_type, "CopyTo", array_int_arg);
1344 Type [] object_arg = { object_type };
1345 void_monitor_enter_object = GetMethod (
1346 monitor_type, "Enter", object_arg);
1347 void_monitor_exit_object = GetMethod (
1348 monitor_type, "Exit", object_arg);
1350 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1352 void_initializearray_array_fieldhandle = GetMethod (
1353 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1358 int_getlength_int = GetMethod (
1359 array_type, "GetLength", int_arg);
1362 // Decimal constructors
1364 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1365 void_decimal_ctor_five_args = GetConstructor (
1366 decimal_type, dec_arg);
1371 cons_param_array_attribute = GetConstructor (
1372 param_array_type, void_arg);
1374 unverifiable_code_ctor = GetConstructor (
1375 unverifiable_code_type, void_arg);
1377 default_member_ctor = GetConstructor (default_member_type, string_);
1380 // InvalidOperationException
1382 invalid_operation_ctor = GetConstructor (
1383 invalid_operation_exception_type, void_arg);
1387 object_ctor = GetConstructor (object_type, void_arg);
1391 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1394 /// This is the "old", non-cache based FindMembers() function. We cannot use
1395 /// the cache here because there is no member name argument.
1397 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1398 MemberFilter filter, object criteria)
1400 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1403 // `builder_to_declspace' contains all dynamic types.
1407 Timer.StartTimer (TimerType.FindMembers);
1408 list = decl.FindMembers (mt, bf, filter, criteria);
1409 Timer.StopTimer (TimerType.FindMembers);
1414 // We have to take care of arrays specially, because GetType on
1415 // a TypeBuilder array will return a Type, not a TypeBuilder,
1416 // and we can not call FindMembers on this type.
1418 if (t.IsSubclassOf (TypeManager.array_type))
1419 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1422 // Since FindMembers will not lookup both static and instance
1423 // members, we emulate this behaviour here.
1425 if ((bf & instance_and_static) == instance_and_static){
1426 MemberInfo [] i_members = t.FindMembers (
1427 mt, bf & ~BindingFlags.Static, filter, criteria);
1429 int i_len = i_members.Length;
1431 MemberInfo one = i_members [0];
1434 // If any of these are present, we are done!
1436 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1437 return new MemberList (i_members);
1440 MemberInfo [] s_members = t.FindMembers (
1441 mt, bf & ~BindingFlags.Instance, filter, criteria);
1443 int s_len = s_members.Length;
1444 if (i_len > 0 || s_len > 0)
1445 return new MemberList (i_members, s_members);
1448 return new MemberList (i_members);
1450 return new MemberList (s_members);
1454 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1459 /// This method is only called from within MemberLookup. It tries to use the member
1460 /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
1461 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1462 /// our return value will already contain all inherited members and the caller don't need
1463 /// to check base classes and interfaces anymore.
1465 private static MemberInfo [] MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1466 string name, out bool used_cache)
1469 // We have to take care of arrays specially, because GetType on
1470 // a TypeBuilder array will return a Type, not a TypeBuilder,
1471 // and we can not call FindMembers on this type.
1473 if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
1475 return TypeHandle.ArrayType.MemberCache.FindMembers (
1476 mt, bf, name, FilterWithClosure_delegate, null);
1480 // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
1481 // and we can ask the DeclSpace for the MemberCache.
1483 if (t is TypeBuilder) {
1484 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1485 MemberCache cache = decl.MemberCache;
1488 // If this DeclSpace has a MemberCache, use it.
1491 if (cache != null) {
1493 return cache.FindMembers (
1494 mt, bf, name, FilterWithClosure_delegate, null);
1497 // If there is no MemberCache, we need to use the "normal" FindMembers.
1498 // Note, this is a VERY uncommon route!
1501 Timer.StartTimer (TimerType.FindMembers);
1502 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
1503 FilterWithClosure_delegate, name);
1504 Timer.StopTimer (TimerType.FindMembers);
1507 return (MemberInfo []) list;
1511 // This call will always succeed. There is exactly one TypeHandle instance per
1512 // type, TypeHandle.GetTypeHandle() will either return it or create a new one
1513 // if it didn't already exist.
1515 TypeHandle handle = TypeHandle.GetTypeHandle (t);
1518 return handle.MemberCache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1521 public static bool IsBuiltinType (Type t)
1523 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1524 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1525 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1526 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
1532 public static bool IsBuiltinType (TypeContainer tc)
1534 return IsBuiltinType (tc.TypeBuilder);
1538 // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
1539 // the pieces in the code where we use IsBuiltinType and special case decimal_type.
1541 public static bool IsCLRType (Type t)
1543 if (t == object_type || t == int32_type || t == uint32_type ||
1544 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1545 t == char_type || t == short_type || t == bool_type ||
1546 t == sbyte_type || t == byte_type || t == ushort_type)
1552 public static bool IsDelegateType (Type t)
1554 if (t.IsSubclassOf (TypeManager.delegate_type))
1560 public static bool IsEnumType (Type t)
1562 if (t.IsSubclassOf (TypeManager.enum_type))
1567 public static bool IsBuiltinOrEnum (Type t)
1569 if (IsBuiltinType (t))
1579 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1581 public static bool IsUnmanagedType (Type t)
1583 if (IsBuiltinType (t) && t != TypeManager.string_type)
1592 if (IsValueType (t)){
1593 if (t is TypeBuilder){
1594 TypeContainer tc = LookupTypeContainer (t);
1596 if (tc.Fields != null){
1597 foreach (Field f in tc.Fields){
1598 if (f.FieldBuilder.IsStatic)
1600 if (!IsUnmanagedType (f.FieldBuilder.FieldType))
1606 FieldInfo [] fields = t.GetFields ();
1608 foreach (FieldInfo f in fields){
1611 if (!IsUnmanagedType (f.FieldType))
1621 public static bool IsValueType (Type t)
1623 if (t.IsSubclassOf (TypeManager.value_type) && (t != TypeManager.enum_type))
1629 public static bool IsInterfaceType (Type t)
1631 TypeContainer tc = (TypeContainer) builder_to_declspace [t];
1635 return tc.Kind == Kind.Interface;
1639 // Checks whether `type' is a subclass or nested child of `parent'.
1641 public static bool IsSubclassOrNestedChildOf (Type type, Type parent)
1644 if ((type == parent) || type.IsSubclassOf (parent))
1647 // Handle nested types.
1648 type = type.DeclaringType;
1649 } while (type != null);
1655 // Checks whether `type' is a nested child of `parent'.
1657 public static bool IsNestedChildOf (Type type, Type parent)
1662 type = type.DeclaringType;
1663 while (type != null) {
1667 type = type.DeclaringType;
1674 // Do the right thing when returning the element type of an
1675 // array type based on whether we are compiling corlib or not
1677 public static Type GetElementType (Type t)
1679 if (RootContext.StdLib)
1680 return t.GetElementType ();
1682 return TypeToCoreType (t.GetElementType ());
1686 /// Returns the User Defined Types
1688 public static ArrayList UserTypes {
1694 public static Hashtable TypeContainers {
1696 return typecontainers;
1700 static Hashtable builder_to_constant;
1702 public static void RegisterConstant (FieldBuilder fb, Const c)
1704 if (builder_to_constant == null)
1705 builder_to_constant = new PtrHashtable ();
1707 if (builder_to_constant.Contains (fb))
1710 builder_to_constant.Add (fb, c);
1713 public static Const LookupConstant (FieldBuilder fb)
1715 if (builder_to_constant == null)
1718 return (Const) builder_to_constant [fb];
1722 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1726 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1727 /// for anything which is dynamic, and we need this in a number of places,
1728 /// we register this information here, and use it afterwards.
1730 static public void RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1735 method_arguments.Add (mb, args);
1736 method_internal_params.Add (mb, ip);
1739 static public InternalParameters LookupParametersByBuilder (MethodBase mb)
1741 if (! (mb is ConstructorBuilder || mb is MethodBuilder))
1744 if (method_internal_params.Contains (mb))
1745 return (InternalParameters) method_internal_params [mb];
1747 throw new Exception ("Argument for Method not registered" + mb);
1751 /// Returns the argument types for a method based on its methodbase
1753 /// For dynamic methods, we use the compiler provided types, for
1754 /// methods from existing assemblies we load them from GetParameters,
1755 /// and insert them into the cache
1757 static public Type [] GetArgumentTypes (MethodBase mb)
1759 object t = method_arguments [mb];
1763 ParameterInfo [] pi = mb.GetParameters ();
1770 types = new Type [c];
1771 for (int i = 0; i < c; i++)
1772 types [i] = pi [i].ParameterType;
1774 method_arguments.Add (mb, types);
1779 /// Returns the argument types for an indexer based on its PropertyInfo
1781 /// For dynamic indexers, we use the compiler provided types, for
1782 /// indexers from existing assemblies we load them from GetParameters,
1783 /// and insert them into the cache
1785 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1787 if (indexer_arguments.Contains (indexer))
1788 return (Type []) indexer_arguments [indexer];
1789 else if (indexer is PropertyBuilder)
1790 // If we're a PropertyBuilder and not in the
1791 // `indexer_arguments' hash, then we're a property and
1795 ParameterInfo [] pi = indexer.GetIndexParameters ();
1796 // Property, not an indexer.
1800 Type [] types = new Type [c];
1802 for (int i = 0; i < c; i++)
1803 types [i] = pi [i].ParameterType;
1805 indexer_arguments.Add (indexer, types);
1811 // This is a workaround the fact that GetValue is not
1812 // supported for dynamic types
1814 static Hashtable fields = new Hashtable ();
1815 static public bool RegisterFieldValue (FieldBuilder fb, object value)
1817 if (fields.Contains (fb))
1820 fields.Add (fb, value);
1825 static public object GetValue (FieldBuilder fb)
1830 static Hashtable fieldbuilders_to_fields = new Hashtable ();
1831 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1833 if (fieldbuilders_to_fields.Contains (fb))
1836 fieldbuilders_to_fields.Add (fb, f);
1841 // The return value can be null; This will be the case for
1842 // auxiliary FieldBuilders created by the compiler that have no
1843 // real field being declared on the source code
1845 static public FieldBase GetField (FieldInfo fb)
1847 return (FieldBase) fieldbuilders_to_fields [fb];
1850 static Hashtable events;
1852 static public void RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1855 events = new Hashtable ();
1857 if (!events.Contains (eb)) {
1858 events.Add (eb, new Pair (add, remove));
1862 static public MethodInfo GetAddMethod (EventInfo ei)
1864 if (ei is MyEventBuilder) {
1865 Pair pair = (Pair) events [ei];
1867 return (MethodInfo) pair.First;
1869 return ei.GetAddMethod (true);
1872 static public MethodInfo GetRemoveMethod (EventInfo ei)
1874 if (ei is MyEventBuilder) {
1875 Pair pair = (Pair) events [ei];
1877 return (MethodInfo) pair.Second;
1879 return ei.GetRemoveMethod (true);
1882 static Hashtable priv_fields_events;
1884 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1886 if (priv_fields_events == null)
1887 priv_fields_events = new Hashtable ();
1889 if (priv_fields_events.Contains (einfo))
1892 priv_fields_events.Add (einfo, builder);
1897 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1899 if (priv_fields_events == null)
1902 return (MemberInfo) priv_fields_events [ei];
1905 static Hashtable properties;
1907 static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase set)
1909 if (properties == null)
1910 properties = new Hashtable ();
1912 if (properties.Contains (pb))
1915 properties.Add (pb, new Pair (get, set));
1920 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get,
1921 MethodBase set, Type[] args)
1923 if (!RegisterProperty (pb, get,set))
1926 indexer_arguments.Add (pb, args);
1931 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen)
1933 Hashtable hash = new Hashtable ();
1934 return CheckStructCycles (tc, seen, hash);
1937 public static bool CheckStructCycles (TypeContainer tc, Hashtable seen,
1940 if ((tc.Kind != Kind.Struct) || IsBuiltinType (tc))
1944 // `seen' contains all types we've already visited.
1946 if (seen.Contains (tc))
1948 seen.Add (tc, null);
1950 if (tc.Fields == null)
1953 foreach (Field field in tc.Fields) {
1954 if (field.FieldBuilder.IsStatic)
1957 Type ftype = field.FieldBuilder.FieldType;
1958 TypeContainer ftc = LookupTypeContainer (ftype);
1962 if (hash.Contains (ftc)) {
1963 Report.Error (523, tc.Location,
1964 "Struct member `{0}.{1}' of type `{2}' " +
1965 "causes a cycle in the struct layout",
1966 tc.Name, field.Name, ftc.Name);
1971 // `hash' contains all types in the current path.
1973 hash.Add (tc, null);
1975 bool ok = CheckStructCycles (ftc, seen, hash);
1982 if (!seen.Contains (ftc))
1983 seen.Add (ftc, null);
1990 /// Given an array of interface types, expand and eliminate repeated ocurrences
1991 /// of an interface.
1995 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
1998 public static TypeExpr[] ExpandInterfaces (TypeExpr [] base_interfaces)
2000 ArrayList new_ifaces = new ArrayList ();
2002 foreach (TypeExpr iface in base_interfaces){
2003 if (!new_ifaces.Contains (iface))
2004 new_ifaces.Add (iface);
2006 TypeExpr [] implementing = iface.GetInterfaces ();
2008 foreach (TypeExpr imp in implementing){
2009 if (!new_ifaces.Contains (imp))
2010 new_ifaces.Add (imp);
2013 TypeExpr [] ret = new TypeExpr [new_ifaces.Count];
2014 new_ifaces.CopyTo (ret, 0);
2018 static PtrHashtable iface_cache = new PtrHashtable ();
2021 /// This function returns the interfaces in the type `t'. Works with
2022 /// both types and TypeBuilders.
2024 public static TypeExpr [] GetInterfaces (Type t)
2027 TypeExpr [] cached = iface_cache [t] as TypeExpr [];
2032 // The reason for catching the Array case is that Reflection.Emit
2033 // will not return a TypeBuilder for Array types of TypeBuilder types,
2034 // but will still throw an exception if we try to call GetInterfaces
2037 // Since the array interfaces are always constant, we return those for
2042 t = TypeManager.array_type;
2044 if (t is TypeBuilder){
2045 TypeExpr [] parent_ifaces;
2047 if (t.BaseType == null)
2048 parent_ifaces = NoTypeExprs;
2050 parent_ifaces = GetInterfaces (t.BaseType);
2051 TypeExpr [] type_ifaces = (TypeExpr []) builder_to_ifaces [t];
2052 if (type_ifaces == null)
2053 type_ifaces = NoTypeExprs;
2055 int parent_count = parent_ifaces.Length;
2056 TypeExpr [] result = new TypeExpr [parent_count + type_ifaces.Length];
2057 parent_ifaces.CopyTo (result, 0);
2058 type_ifaces.CopyTo (result, parent_count);
2060 iface_cache [t] = result;
2063 Type [] ifaces = t.GetInterfaces ();
2064 if (ifaces.Length == 0)
2067 TypeExpr [] result = new TypeExpr [ifaces.Length];
2068 for (int i = 0; i < ifaces.Length; i++)
2069 result [i] = new TypeExpression (ifaces [i], Location.Null);
2071 iface_cache [t] = result;
2077 // gets the interfaces that are declared explicitly on t
2079 public static TypeExpr [] GetExplicitInterfaces (TypeBuilder t)
2081 return (TypeExpr []) builder_to_ifaces [t];
2085 /// The following is used to check if a given type implements an interface.
2086 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
2088 public static bool ImplementsInterface (Type t, Type iface)
2090 TypeExpr [] interfaces;
2093 // FIXME OPTIMIZATION:
2094 // as soon as we hit a non-TypeBuiler in the interface
2095 // chain, we could return, as the `Type.GetInterfaces'
2096 // will return all the interfaces implement by the type
2100 interfaces = GetInterfaces (t);
2102 if (interfaces != null){
2103 foreach (TypeExpr i in interfaces){
2104 if (i.Type == iface)
2110 } while (t != null);
2115 static NumberFormatInfo nf_provider = CultureInfo.CurrentCulture.NumberFormat;
2117 // This is a custom version of Convert.ChangeType() which works
2118 // with the TypeBuilder defined types when compiling corlib.
2119 public static object ChangeType (object value, Type conversionType, out bool error)
2121 IConvertible convert_value = value as IConvertible;
2123 if (convert_value == null){
2129 // We must use Type.Equals() here since `conversionType' is
2130 // the TypeBuilder created version of a system type and not
2131 // the system type itself. You cannot use Type.GetTypeCode()
2132 // on such a type - it'd always return TypeCode.Object.
2136 if (conversionType.Equals (typeof (Boolean)))
2137 return (object)(convert_value.ToBoolean (nf_provider));
2138 else if (conversionType.Equals (typeof (Byte)))
2139 return (object)(convert_value.ToByte (nf_provider));
2140 else if (conversionType.Equals (typeof (Char)))
2141 return (object)(convert_value.ToChar (nf_provider));
2142 else if (conversionType.Equals (typeof (DateTime)))
2143 return (object)(convert_value.ToDateTime (nf_provider));
2144 else if (conversionType.Equals (typeof (Decimal)))
2145 return (object)(convert_value.ToDecimal (nf_provider));
2146 else if (conversionType.Equals (typeof (Double)))
2147 return (object)(convert_value.ToDouble (nf_provider));
2148 else if (conversionType.Equals (typeof (Int16)))
2149 return (object)(convert_value.ToInt16 (nf_provider));
2150 else if (conversionType.Equals (typeof (Int32)))
2151 return (object)(convert_value.ToInt32 (nf_provider));
2152 else if (conversionType.Equals (typeof (Int64)))
2153 return (object)(convert_value.ToInt64 (nf_provider));
2154 else if (conversionType.Equals (typeof (SByte)))
2155 return (object)(convert_value.ToSByte (nf_provider));
2156 else if (conversionType.Equals (typeof (Single)))
2157 return (object)(convert_value.ToSingle (nf_provider));
2158 else if (conversionType.Equals (typeof (String)))
2159 return (object)(convert_value.ToString (nf_provider));
2160 else if (conversionType.Equals (typeof (UInt16)))
2161 return (object)(convert_value.ToUInt16 (nf_provider));
2162 else if (conversionType.Equals (typeof (UInt32)))
2163 return (object)(convert_value.ToUInt32 (nf_provider));
2164 else if (conversionType.Equals (typeof (UInt64)))
2165 return (object)(convert_value.ToUInt64 (nf_provider));
2166 else if (conversionType.Equals (typeof (Object)))
2167 return (object)(value);
2177 // This is needed, because enumerations from assemblies
2178 // do not report their underlyingtype, but they report
2181 public static Type EnumToUnderlying (Type t)
2183 if (t == TypeManager.enum_type)
2186 t = t.UnderlyingSystemType;
2187 if (!TypeManager.IsEnumType (t))
2190 if (t is TypeBuilder) {
2191 // slow path needed to compile corlib
2192 if (t == TypeManager.bool_type ||
2193 t == TypeManager.byte_type ||
2194 t == TypeManager.sbyte_type ||
2195 t == TypeManager.char_type ||
2196 t == TypeManager.short_type ||
2197 t == TypeManager.ushort_type ||
2198 t == TypeManager.int32_type ||
2199 t == TypeManager.uint32_type ||
2200 t == TypeManager.int64_type ||
2201 t == TypeManager.uint64_type)
2203 throw new Exception ("Unhandled typecode in enum " + " from " + t.AssemblyQualifiedName);
2205 TypeCode tc = Type.GetTypeCode (t);
2208 case TypeCode.Boolean:
2209 return TypeManager.bool_type;
2211 return TypeManager.byte_type;
2212 case TypeCode.SByte:
2213 return TypeManager.sbyte_type;
2215 return TypeManager.char_type;
2216 case TypeCode.Int16:
2217 return TypeManager.short_type;
2218 case TypeCode.UInt16:
2219 return TypeManager.ushort_type;
2220 case TypeCode.Int32:
2221 return TypeManager.int32_type;
2222 case TypeCode.UInt32:
2223 return TypeManager.uint32_type;
2224 case TypeCode.Int64:
2225 return TypeManager.int64_type;
2226 case TypeCode.UInt64:
2227 return TypeManager.uint64_type;
2229 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
2233 // When compiling corlib and called with one of the core types, return
2234 // the corresponding typebuilder for that type.
2236 public static Type TypeToCoreType (Type t)
2238 if (RootContext.StdLib || (t is TypeBuilder))
2241 TypeCode tc = Type.GetTypeCode (t);
2244 case TypeCode.Boolean:
2245 return TypeManager.bool_type;
2247 return TypeManager.byte_type;
2248 case TypeCode.SByte:
2249 return TypeManager.sbyte_type;
2251 return TypeManager.char_type;
2252 case TypeCode.Int16:
2253 return TypeManager.short_type;
2254 case TypeCode.UInt16:
2255 return TypeManager.ushort_type;
2256 case TypeCode.Int32:
2257 return TypeManager.int32_type;
2258 case TypeCode.UInt32:
2259 return TypeManager.uint32_type;
2260 case TypeCode.Int64:
2261 return TypeManager.int64_type;
2262 case TypeCode.UInt64:
2263 return TypeManager.uint64_type;
2264 case TypeCode.Single:
2265 return TypeManager.float_type;
2266 case TypeCode.Double:
2267 return TypeManager.double_type;
2268 case TypeCode.String:
2269 return TypeManager.string_type;
2271 if (t == typeof (void))
2272 return TypeManager.void_type;
2273 if (t == typeof (object))
2274 return TypeManager.object_type;
2275 if (t == typeof (System.Type))
2276 return TypeManager.type_type;
2277 if (t == typeof (System.IntPtr))
2278 return TypeManager.intptr_type;
2284 /// Utility function that can be used to probe whether a type
2285 /// is managed or not.
2287 public static bool VerifyUnManaged (Type t, Location loc)
2289 if (t.IsValueType || t.IsPointer){
2291 // FIXME: this is more complex, we actually need to
2292 // make sure that the type does not contain any
2298 if (!RootContext.StdLib && (t == TypeManager.decimal_type))
2299 // We need this explicit check here to make it work when
2300 // compiling corlib.
2305 "Cannot take the address or size of a variable of a managed type ('" +
2306 CSharpName (t) + "')");
2311 /// Returns the name of the indexer in a given type.
2314 /// The default is not always `Item'. The user can change this behaviour by
2315 /// using the IndexerNameAttribute in the container.
2316 /// For example, the String class indexer is named `Chars' not `Item'
2318 public static string IndexerPropertyName (Type t)
2320 if (t is TypeBuilder) {
2321 TypeContainer tc = t.IsInterface ? LookupInterface (t) : LookupTypeContainer (t);
2322 return tc == null ? TypeContainer.DefaultIndexerName : tc.IndexerName;
2325 System.Attribute attr = System.Attribute.GetCustomAttribute (
2326 t, TypeManager.default_member_type);
2328 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
2329 return dma.MemberName;
2332 return TypeContainer.DefaultIndexerName;
2335 static MethodInfo declare_local_method = null;
2337 public static LocalBuilder DeclareLocalPinned (ILGenerator ig, Type t)
2339 if (declare_local_method == null){
2340 declare_local_method = typeof (ILGenerator).GetMethod (
2342 BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
2344 new Type [] { typeof (Type), typeof (bool)},
2346 if (declare_local_method == null){
2347 Report.Warning (-24, new Location (-1),
2348 "This version of the runtime does not support making pinned local variables. " +
2349 "This code may cause errors on a runtime with a moving GC");
2350 return ig.DeclareLocal (t);
2353 return (LocalBuilder) declare_local_method.Invoke (ig, new object [] { t, true });
2357 // Returns whether the array of memberinfos contains the given method
2359 public static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
2361 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
2363 foreach (MethodBase method in array) {
2364 if (method.Name != new_method.Name)
2367 if (method is MethodInfo && new_method is MethodInfo)
2368 if (((MethodInfo) method).ReturnType != ((MethodInfo) new_method).ReturnType)
2372 Type [] old_args = TypeManager.GetArgumentTypes (method);
2373 int old_count = old_args.Length;
2376 if (new_args.Length != old_count)
2379 for (i = 0; i < old_count; i++){
2380 if (old_args [i] != new_args [i])
2393 // We copy methods from `new_members' into `target_list' if the signature
2394 // for the method from in the new list does not exist in the target_list
2396 // The name is assumed to be the same.
2398 public static ArrayList CopyNewMethods (ArrayList target_list, IList new_members)
2400 if (target_list == null){
2401 target_list = new ArrayList ();
2403 foreach (MemberInfo mi in new_members){
2404 if (mi is MethodBase)
2405 target_list.Add (mi);
2410 MemberInfo [] target_array = new MemberInfo [target_list.Count];
2411 target_list.CopyTo (target_array, 0);
2413 foreach (MemberInfo mi in new_members){
2414 MethodBase new_method = (MethodBase) mi;
2416 if (!ArrayContainsMethod (target_array, new_method))
2417 target_list.Add (new_method);
2423 #region MemberLookup implementation
2426 // Whether we allow private members in the result (since FindMembers
2427 // uses NonPublic for both protected and private), we need to distinguish.
2430 static internal bool FilterNone (MemberInfo m, object filter_criteria)
2435 internal class Closure {
2436 internal bool private_ok;
2438 // Who is invoking us and which type is being queried currently.
2439 internal Type invocation_type;
2440 internal Type qualifier_type;
2442 // The assembly that defines the type is that is calling us
2443 internal Assembly invocation_assembly;
2444 internal IList almost_match;
2446 private bool CheckValidFamilyAccess (bool is_static, MemberInfo m)
2448 if (invocation_type == null)
2451 Debug.Assert (IsSubclassOrNestedChildOf (invocation_type, m.DeclaringType));
2456 // A nested class has access to all the protected members visible to its parent.
2457 if (qualifier_type != null
2458 && TypeManager.IsNestedChildOf (invocation_type, qualifier_type))
2461 if (invocation_type == m.DeclaringType
2462 || invocation_type.IsSubclassOf (m.DeclaringType)) {
2463 // Although a derived class can access protected members of its base class
2464 // it cannot do so through an instance of the base class (CS1540).
2465 // => Ancestry should be: declaring_type ->* invocation_type ->* qualified_type
2466 if (qualifier_type == null
2467 || qualifier_type == invocation_type
2468 || qualifier_type.IsSubclassOf (invocation_type))
2472 if (almost_match != null)
2473 almost_match.Add (m);
2478 // This filter filters by name + whether it is ok to include private
2479 // members in the search
2481 internal bool Filter (MemberInfo m, object filter_criteria)
2484 // Hack: we know that the filter criteria will always be in the `closure'
2488 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2491 if (((qualifier_type == null) || (qualifier_type == invocation_type)) &&
2492 (m.DeclaringType == invocation_type))
2496 // Ugly: we need to find out the type of `m', and depending
2497 // on this, tell whether we accept or not
2499 if (m is MethodBase){
2500 MethodBase mb = (MethodBase) m;
2501 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2503 if (ma == MethodAttributes.Private)
2504 return private_ok || (invocation_type == m.DeclaringType) ||
2505 IsNestedChildOf (invocation_type, m.DeclaringType);
2507 // Assembly succeeds if we're in the same assembly.
2508 if (ma == MethodAttributes.Assembly)
2509 return (invocation_assembly == mb.DeclaringType.Assembly);
2511 // FamAndAssem requires that we not only derive, but we are on the same assembly.
2512 if (ma == MethodAttributes.FamANDAssem){
2513 if (invocation_assembly != mb.DeclaringType.Assembly)
2517 // Family and FamANDAssem require that we derive.
2518 if ((ma == MethodAttributes.Family) || (ma == MethodAttributes.FamANDAssem))
2519 return CheckValidFamilyAccess (mb.IsStatic, m);
2525 if (m is FieldInfo){
2526 FieldInfo fi = (FieldInfo) m;
2527 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2529 if (fa == FieldAttributes.Private)
2530 return private_ok || (invocation_type == m.DeclaringType) ||
2531 IsNestedChildOf (invocation_type, m.DeclaringType);
2533 // Assembly succeeds if we're in the same assembly.
2534 if (fa == FieldAttributes.Assembly)
2535 return (invocation_assembly == fi.DeclaringType.Assembly);
2537 // FamAndAssem requires that we not only derive, but we are on the same assembly.
2538 if (fa == FieldAttributes.FamANDAssem){
2539 if (invocation_assembly != fi.DeclaringType.Assembly)
2543 // Family and FamANDAssem require that we derive.
2544 if ((fa == FieldAttributes.Family) || (fa == FieldAttributes.FamANDAssem))
2545 return CheckValidFamilyAccess (fi.IsStatic, m);
2552 // EventInfos and PropertyInfos, return true because they lack permission
2553 // information, so we need to check later on the methods.
2559 static Closure closure = new Closure ();
2560 static MemberFilter FilterWithClosure_delegate = new MemberFilter (closure.Filter);
2563 // Looks up a member called `name' in the `queried_type'. This lookup
2564 // is done by code that is contained in the definition for `invocation_type'
2565 // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
2567 // `invocation_type' is used to check whether we're allowed to access the requested
2568 // member wrt its protection level.
2570 // When called from MemberAccess, `qualifier_type' is the type which is used to access
2571 // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
2572 // is B and qualifier_type is A). This is used to do the CS1540 check.
2574 // When resolving a SimpleName, `qualifier_type' is null.
2576 // The `qualifier_type' is used for the CS1540 check; it's normally either null or
2577 // the same than `queried_type' - except when we're being called from BaseAccess;
2578 // in this case, `invocation_type' is the current type and `queried_type' the base
2579 // type, so this'd normally trigger a CS1540.
2581 // The binding flags are `bf' and the kind of members being looked up are `mt'
2583 // The return value always includes private members which code in `invocation_type'
2584 // is allowed to access (using the specified `qualifier_type' if given); only use
2585 // BindingFlags.NonPublic to bypass the permission check.
2587 // The 'almost_match' argument is used for reporting error CS1540.
2589 // Returns an array of a single element for everything but Methods/Constructors
2590 // that might return multiple matches.
2592 public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_type,
2593 Type queried_type, MemberTypes mt,
2594 BindingFlags original_bf, string name, IList almost_match)
2596 Timer.StartTimer (TimerType.MemberLookup);
2598 MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_type,
2599 queried_type, mt, original_bf, name, almost_match);
2601 Timer.StopTimer (TimerType.MemberLookup);
2606 static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_type,
2607 Type queried_type, MemberTypes mt,
2608 BindingFlags original_bf, string name, IList almost_match)
2610 BindingFlags bf = original_bf;
2612 ArrayList method_list = null;
2613 Type current_type = queried_type;
2614 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2615 bool skip_iface_check = true, used_cache = false;
2616 bool always_ok_flag = false;
2618 closure.invocation_type = invocation_type;
2619 closure.invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2620 closure.qualifier_type = qualifier_type;
2621 closure.almost_match = almost_match;
2624 // If we are a nested class, we always have access to our container
2627 if (invocation_type != null){
2628 string invocation_name = invocation_type.FullName;
2629 if (invocation_name.IndexOf ('+') != -1){
2630 string container = queried_type.FullName + "+";
2631 int container_length = container.Length;
2633 if (invocation_name.Length > container_length){
2634 string shared = invocation_name.Substring (0, container_length);
2636 if (shared == container)
2637 always_ok_flag = true;
2642 // This is from the first time we find a method
2643 // in most cases, we do not actually find a method in the base class
2644 // so we can just ignore it, and save the arraylist allocation
2645 MemberInfo [] first_members_list = null;
2646 bool use_first_members_list = false;
2652 // `NonPublic' is lame, because it includes both protected and
2653 // private methods, so we need to control this behavior by
2654 // explicitly tracking if a private method is ok or not.
2656 // The possible cases are:
2657 // public, private and protected (internal does not come into the
2660 if ((invocation_type != null) &&
2661 ((invocation_type == current_type) ||
2662 IsNestedChildOf (invocation_type, current_type)) ||
2664 bf = original_bf | BindingFlags.NonPublic;
2668 closure.private_ok = (original_bf & BindingFlags.NonPublic) != 0;
2670 Timer.StopTimer (TimerType.MemberLookup);
2672 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2674 Timer.StartTimer (TimerType.MemberLookup);
2677 // When queried for an interface type, the cache will automatically check all
2678 // inherited members, so we don't need to do this here. However, this only
2679 // works if we already used the cache in the first iteration of this loop.
2681 // If we used the cache in any further iteration, we can still terminate the
2682 // loop since the cache always looks in all parent classes.
2688 skip_iface_check = false;
2690 if (current_type == TypeManager.object_type)
2693 current_type = current_type.BaseType;
2696 // This happens with interfaces, they have a null
2697 // basetype. Look members up in the Object class.
2699 if (current_type == null) {
2700 current_type = TypeManager.object_type;
2705 if (list.Length == 0)
2709 // Events and types are returned by both `static' and `instance'
2710 // searches, which means that our above FindMembers will
2711 // return two copies of the same.
2713 if (list.Length == 1 && !(list [0] is MethodBase)){
2718 // Multiple properties: we query those just to find out the indexer
2721 if (list [0] is PropertyInfo)
2725 // We found an event: the cache lookup returns both the event and
2726 // its private field.
2728 if (list [0] is EventInfo) {
2729 if ((list.Length == 2) && (list [1] is FieldInfo))
2730 return new MemberInfo [] { list [0] };
2737 // We found methods, turn the search into "method scan"
2741 if (first_members_list != null) {
2742 if (use_first_members_list) {
2743 method_list = CopyNewMethods (method_list, first_members_list);
2744 use_first_members_list = false;
2747 method_list = CopyNewMethods (method_list, list);
2749 first_members_list = list;
2750 use_first_members_list = true;
2751 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2753 } while (searching);
2755 if (use_first_members_list) {
2756 foreach (MemberInfo mi in first_members_list) {
2757 if (! (mi is MethodBase)) {
2758 method_list = CopyNewMethods (method_list, first_members_list);
2759 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2762 return (MemberInfo []) first_members_list;
2765 if (method_list != null && method_list.Count > 0)
2766 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2769 // This happens if we already used the cache in the first iteration, in this case
2770 // the cache already looked in all interfaces.
2772 if (skip_iface_check)
2776 // Interfaces do not list members they inherit, so we have to
2779 if (!queried_type.IsInterface)
2782 if (queried_type.IsArray)
2783 queried_type = TypeManager.array_type;
2785 TypeExpr [] ifaces = GetInterfaces (queried_type);
2789 foreach (TypeExpr itype in ifaces){
2792 x = MemberLookup (null, null, itype.Type, mt, bf, name, null);
2800 // Tests whether external method is really special
2801 public static bool IsSpecialMethod (MethodBase mb)
2803 string name = mb.Name;
2804 if (name.StartsWith ("get_") || name.StartsWith ("set_"))
2805 return mb.DeclaringType.GetProperty (name.Substring (4)) != null;
2807 if (name.StartsWith ("add_"))
2808 return mb.DeclaringType.GetEvent (name.Substring (4)) != null;
2810 if (name.StartsWith ("remove_"))
2811 return mb.DeclaringType.GetEvent (name.Substring (7)) != null;
2813 if (name.StartsWith ("op_")){
2814 foreach (string oname in Unary.oper_names) {
2819 foreach (string oname in Binary.oper_names) {
2832 /// There is exactly one instance of this class per type.
2834 public sealed class TypeHandle : IMemberContainer {
2835 public readonly TypeHandle BaseType;
2837 readonly int id = ++next_id;
2838 static int next_id = 0;
2841 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2842 /// a TypeHandle yet, a new instance of it is created. This static method
2843 /// ensures that we'll only have one TypeHandle instance per type.
2845 public static TypeHandle GetTypeHandle (Type t)
2847 TypeHandle handle = (TypeHandle) type_hash [t];
2851 handle = new TypeHandle (t);
2852 type_hash.Add (t, handle);
2856 public static void CleanUp ()
2862 /// Returns the TypeHandle for TypeManager.object_type.
2864 public static IMemberContainer ObjectType {
2866 if (object_type != null)
2869 object_type = GetTypeHandle (TypeManager.object_type);
2876 /// Returns the TypeHandle for TypeManager.array_type.
2878 public static IMemberContainer ArrayType {
2880 if (array_type != null)
2883 array_type = GetTypeHandle (TypeManager.array_type);
2889 private static PtrHashtable type_hash = new PtrHashtable ();
2891 private static TypeHandle object_type = null;
2892 private static TypeHandle array_type = null;
2895 private bool is_interface;
2896 private MemberCache member_cache;
2898 private TypeHandle (Type type)
2901 if (type.BaseType != null)
2902 BaseType = GetTypeHandle (type.BaseType);
2903 this.is_interface = type.IsInterface;
2904 this.member_cache = new MemberCache (this, true);
2907 // IMemberContainer methods
2909 public string Name {
2911 return type.FullName;
2921 public IMemberContainer ParentContainer {
2927 public bool IsInterface {
2929 return is_interface;
2933 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
2935 MemberInfo [] members;
2936 if (mt == MemberTypes.Event)
2937 members = type.GetEvents (bf | BindingFlags.DeclaredOnly);
2939 members = type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
2941 Array.Reverse (members);
2943 return new MemberList (members);
2946 // IMemberFinder methods
2948 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
2949 MemberFilter filter, object criteria)
2951 return new MemberList (member_cache.FindMembers (mt, bf, name, filter, criteria));
2954 public MemberCache MemberCache {
2956 return member_cache;
2960 public override string ToString ()
2962 if (BaseType != null)
2963 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
2965 return "TypeHandle (" + id + "," + Name + ")";