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)
13 using System.Globalization;
14 using System.Collections;
15 using System.Reflection;
16 using System.Reflection.Emit;
17 using System.Text.RegularExpressions;
18 using System.Runtime.CompilerServices;
19 using System.Diagnostics;
21 namespace Mono.MonoBASIC {
23 public class TypeManager {
25 // A list of core types that the compiler requires or uses
27 static public Type object_type;
28 static public Type value_type;
29 static public Type string_type;
30 static public Type int32_type;
31 static public Type uint32_type;
32 static public Type int64_type;
33 static public Type uint64_type;
34 static public Type float_type;
35 static public Type double_type;
36 static public Type char_type;
37 static public Type char_ptr_type;
38 static public Type short_type;
39 static public Type decimal_type;
40 static public Type date_type;
41 static public Type bool_type;
42 static public Type sbyte_type;
43 static public Type byte_type;
44 static public Type ushort_type;
45 static public Type enum_type;
46 static public Type delegate_type;
47 static public Type multicast_delegate_type;
48 static public Type void_type;
49 static public Type enumeration_type;
50 static public Type array_type;
51 static public Type runtime_handle_type;
52 static public Type icloneable_type;
53 static public Type type_type;
54 static public Type ienumerator_type;
55 static public Type idisposable_type;
56 static public Type default_member_type;
57 static public Type iasyncresult_type;
58 static public Type asynccallback_type;
59 static public Type intptr_type;
60 static public Type monitor_type;
61 static public Type runtime_field_handle_type;
62 static public Type attribute_type;
63 static public Type attribute_usage_type;
64 static public Type dllimport_type;
65 static public Type unverifiable_code_type;
66 static public Type methodimpl_attr_type;
67 static public Type marshal_as_attr_type;
68 static public Type param_array_type;
69 static public Type void_ptr_type;
70 static public Type indexer_name_type;
71 static public Type exception_type;
72 static public object obsolete_attribute_type;
73 static public object conditional_attribute_type;
76 // An empty array of types
78 static public Type [] NoTypes;
82 // Expressions representing the internal types. Used during declaration
85 static public Expression system_object_expr, system_string_expr;
86 static public Expression system_boolean_expr, system_decimal_expr;
87 static public Expression system_single_expr, system_double_expr;
88 static public Expression system_sbyte_expr, system_byte_expr;
89 static public Expression system_int16_expr, system_uint16_expr;
90 static public Expression system_int32_expr, system_uint32_expr;
91 static public Expression system_int64_expr, system_uint64_expr;
92 static public Expression system_char_expr, system_void_expr;
93 static public Expression system_date_expr;
94 static public Expression system_asynccallback_expr;
95 static public Expression system_iasyncresult_expr;
98 // This is only used when compiling corlib
100 static public Type system_int32_type;
101 static public Type system_array_type;
102 static public Type system_type_type;
103 static public Type system_assemblybuilder_type;
104 static public MethodInfo system_int_array_get_length;
105 static public MethodInfo system_int_array_get_rank;
106 static public MethodInfo system_object_array_clone;
107 static public MethodInfo system_int_array_get_length_int;
108 static public MethodInfo system_int_array_get_lower_bound_int;
109 static public MethodInfo system_int_array_get_upper_bound_int;
110 static public MethodInfo system_void_array_copyto_array_int;
111 static public MethodInfo system_void_set_corlib_type_builders;
115 // Internal, not really used outside
117 static Type runtime_helpers_type;
120 // These methods are called by code generated by the compiler
122 static public MethodInfo string_concat_string_string;
123 static public MethodInfo string_concat_object_object;
124 static public MethodInfo string_isinterneted_string;
125 static public MethodInfo system_type_get_type_from_handle;
126 static public MethodInfo object_getcurrent_void;
127 static public MethodInfo bool_movenext_void;
128 static public MethodInfo void_dispose_void;
129 static public MethodInfo void_monitor_enter_object;
130 static public MethodInfo void_monitor_exit_object;
131 static public MethodInfo void_initializearray_array_fieldhandle;
132 static public MethodInfo int_getlength_int;
133 static public MethodInfo delegate_combine_delegate_delegate;
134 static public MethodInfo delegate_remove_delegate_delegate;
135 static public MethodInfo int_get_offset_to_string_data;
136 static public MethodInfo int_array_get_length;
137 static public MethodInfo int_array_get_rank;
138 static public MethodInfo object_array_clone;
139 static public MethodInfo int_array_get_length_int;
140 static public MethodInfo int_array_get_lower_bound_int;
141 static public MethodInfo int_array_get_upper_bound_int;
142 static public MethodInfo void_array_copyto_array_int;
145 // The attribute constructors.
147 static public ConstructorInfo cons_param_array_attribute;
148 static public ConstructorInfo void_decimal_ctor_five_args;
149 static public ConstructorInfo void_datetime_ctor_ticks_arg;
150 static public ConstructorInfo unverifiable_code_ctor;
151 static public ConstructorInfo default_member_ctor;
154 // Holds the Array of Assemblies that have been loaded
155 // (either because it is the default or the user used the
156 // -r command line option)
158 static Assembly [] assemblies;
161 // Keeps a list of module builders. We used this to do lookups
162 // on the modulebuilder using GetType -- needed for arrays
165 // This is changed from list of ModuleBuilders
166 // to list of Modules for getting addmodule
167 // compiler option working
168 // Anirban - 13.07.2004
170 static System.Reflection.Module [] modules;
173 // This is the type_cache from the assemblies to avoid
174 // hitting System.Reflection on every lookup.
176 static CaseInsensitiveHashtable types;
179 // This is used to hotld the corresponding TypeContainer objects
180 // since we need this in FindMembers
182 static CaseInsensitiveHashtable typecontainers;
185 // Keeps track of those types that are defined by the
188 static ArrayList user_types;
190 static PtrHashtable builder_to_declspace;
193 // Tracks the interfaces implemented by typebuilders. We only
194 // enter those who do implement or or more interfaces
196 static PtrHashtable builder_to_ifaces;
199 // Maps MethodBase.RuntimeTypeHandle to a Type array that contains
200 // the arguments to the method
202 static Hashtable method_arguments;
205 // Maps PropertyBuilder to a Type array that contains
206 // the arguments to the indexer
208 static Hashtable indexer_arguments;
211 // Maybe 'method_arguments' should be replaced and only
212 // method_internal_params should be kept?
214 static Hashtable method_internal_params;
217 // Keeps track of methods
220 static Hashtable builder_to_method;
228 /// A filter for Findmembers that uses the Signature object to
231 static bool SignatureFilter (MemberInfo mi, object criteria)
233 Signature sig = (Signature) criteria;
235 if (!(mi is MethodBase))
238 if (mi.Name != sig.name)
241 int count = sig.args.Length;
243 if (mi is MethodBuilder || mi is ConstructorBuilder){
244 Type [] candidate_args = GetArgumentTypes ((MethodBase) mi);
246 if (candidate_args.Length != count)
249 for (int i = 0; i < count; i++)
250 if (candidate_args [i] != sig.args [i])
255 ParameterInfo [] pars = ((MethodBase) mi).GetParameters ();
257 if (pars.Length != count)
260 for (int i = 0; i < count; i++)
261 if (pars [i].ParameterType != sig.args [i])
267 // A delegate that points to the filter above.
268 static MemberFilter signature_filter;
271 // These are expressions that represent some of the internal data types, used
274 static void InitExpressionTypes ()
276 system_object_expr = new TypeLookupExpression ("System.Object");
277 system_string_expr = new TypeLookupExpression ("System.String");
278 system_boolean_expr = new TypeLookupExpression ("System.Boolean");
279 system_decimal_expr = new TypeLookupExpression ("System.Decimal");
280 system_single_expr = new TypeLookupExpression ("System.Single");
281 system_double_expr = new TypeLookupExpression ("System.Double");
282 system_sbyte_expr = new TypeLookupExpression ("System.SByte");
283 system_byte_expr = new TypeLookupExpression ("System.Byte");
284 system_int16_expr = new TypeLookupExpression ("System.Int16");
285 system_uint16_expr = new TypeLookupExpression ("System.UInt16");
286 system_int32_expr = new TypeLookupExpression ("System.Int32");
287 system_uint32_expr = new TypeLookupExpression ("System.UInt32");
288 system_int64_expr = new TypeLookupExpression ("System.Int64");
289 system_uint64_expr = new TypeLookupExpression ("System.UInt64");
290 system_char_expr = new TypeLookupExpression ("System.Char");
291 system_void_expr = new TypeLookupExpression ("System.Void");
292 system_date_expr = new TypeLookupExpression ("System.DateTime");
293 system_asynccallback_expr = new TypeLookupExpression ("System.AsyncCallback");
294 system_iasyncresult_expr = new TypeLookupExpression ("System.IAsyncResult");
297 static TypeManager ()
299 assemblies = new Assembly [0];
301 user_types = new ArrayList ();
303 types = new CaseInsensitiveHashtable ();
304 negative_hits = new CaseInsensitiveHashtable ();
305 typecontainers = new CaseInsensitiveHashtable ();
307 builder_to_declspace = new PtrHashtable ();
308 builder_to_method = new PtrHashtable ();
309 method_arguments = new PtrHashtable ();
310 method_internal_params = new PtrHashtable ();
311 indexer_arguments = new PtrHashtable ();
312 builder_to_ifaces = new PtrHashtable ();
314 NoTypes = new Type [0];
316 signature_filter = new MemberFilter (SignatureFilter);
317 InitExpressionTypes ();
320 public static void AddUserType (string name, TypeBuilder t, Type [] ifaces)
325 Type prev = (Type) types [name];
326 TypeContainer tc = builder_to_declspace [prev] as TypeContainer;
330 // This probably never happens, as we catch this before
332 Report.Error (-17, "The type '" + name + "' has already been defined.");
336 tc = builder_to_declspace [t] as TypeContainer;
339 1595, "The type '" + name + "' is defined in an existing assembly;"+
340 " Using the new definition from: " + tc.Location);
341 Report.Warning (1595, "Previously defined in: " + prev.Assembly.FullName);
349 builder_to_ifaces [t] = ifaces;
353 // This entry point is used by types that we define under the covers
355 public static void RegisterBuilder (TypeBuilder tb, Type [] ifaces)
358 builder_to_ifaces [tb] = ifaces;
361 public static void AddUserType (string name, TypeBuilder t, TypeContainer tc, Type [] ifaces)
363 builder_to_declspace.Add (t, tc);
364 typecontainers.Add (name, tc);
365 AddUserType (name, t, ifaces);
368 public static void AddDelegateType (string name, TypeBuilder t, Delegate del)
371 builder_to_declspace.Add (t, del);
374 public static void AddEnumType (string name, TypeBuilder t, Enum en)
377 builder_to_declspace.Add (t, en);
380 public static void AddUserInterface (string name, TypeBuilder t, Interface i, Type [] ifaces)
382 AddUserType (name, t, ifaces);
383 builder_to_declspace.Add (t, i);
386 public static void AddMethod (MethodBuilder builder, MethodData method)
388 builder_to_method.Add (builder, method);
392 /// Returns the TypeContainer whose Type is 't' or null if there is no
393 /// TypeContainer for 't' (ie, the Type comes from a library)
395 public static TypeContainer LookupTypeContainer (Type t)
397 return builder_to_declspace [t] as TypeContainer;
400 public static IMemberContainer LookupMemberContainer (Type t)
402 if (t is TypeBuilder) {
403 IMemberContainer container = builder_to_declspace [t] as IMemberContainer;
404 if (container != null)
408 return TypeHandle.GetTypeHandle (t);
411 public static Interface LookupInterface (Type t)
413 return builder_to_declspace [t] as Interface;
416 public static Delegate LookupDelegate (Type t)
418 return builder_to_declspace [t] as Delegate;
421 public static Enum LookupEnum (Type t)
423 return builder_to_declspace [t] as Enum;
426 public static TypeContainer LookupClass (Type t)
428 return builder_to_declspace [t] as TypeContainer;
432 /// Registers an assembly to load types from.
434 public static void AddAssembly (Assembly a)
436 int top = assemblies.Length;
437 Assembly [] n = new Assembly [top + 1];
439 assemblies.CopyTo (n, 0);
444 foreach(Type type in a.GetTypes()) {
445 if (type.IsPublic ) // && type. attributed as standard module
446 AddStandardModule(type);
451 /// Registers a module builder to lookup types from
453 public static void AddModule (System.Reflection.Module mb)
455 int top = modules != null ? modules.Length : 0;
456 System.Reflection.Module [] n = new System.Reflection.Module [top + 1];
459 modules.CopyTo (n, 0);
464 private class StandardModule {
465 public readonly string Namespace;
466 public readonly string Name;
467 private readonly string asString;
468 public StandardModule(string _namespace, string name) {
469 Namespace = _namespace;
471 asString = ((Namespace != null && Namespace.Length > 0)?(Namespace + "."):"") + Name;
473 public override string ToString() { return asString; }
476 private static StandardModule[] standardModules;
479 /// Registers a new 'standard module' to lookup short-qualified or unqualified members
481 internal static void AddStandardModule(Module module)
483 int top = standardModules != null ? standardModules.Length : 0;
484 StandardModule [] n = new StandardModule [top + 1];
486 if (standardModules != null)
487 standardModules.CopyTo (n, 0);
488 string name = module.Name;
489 int split = name.LastIndexOf('.');
491 name = name.Substring(split+1);
492 n [top] = new StandardModule(module.Namespace.Name, name);
493 // Console.WriteLine("Standard Module added: " + n [top]);
498 /// Registers a existing 'standard module' to lookup short-qualified or unqualified members
500 private static void AddStandardModule(Type type)
502 object[] attributes = type.GetCustomAttributes(false);
503 for (int i = 0; i < attributes.Length; i ++) {
504 if (attributes[i].ToString() == "Microsoft.VisualBasic.CompilerServices.StandardModuleAttribute") {
505 int top = standardModules != null ? standardModules.Length : 0;
506 StandardModule [] n = new StandardModule [top + 1];
508 if (standardModules != null)
509 standardModules.CopyTo (n, 0);
510 n [top] = new StandardModule(type.Namespace, type.Name) ;
520 public static Type[] GetPertinentStandardModules(params string[] namespaces)
522 ArrayList list = new ArrayList();
523 foreach(string Namespace in namespaces)
525 for(int i = 0; i < standardModules.Length; i++) {
526 if (standardModules[i].Namespace == Namespace) {
527 string name = standardModules[i].ToString();
528 Type t = LookupType(name);
530 System.Console.WriteLine("Could not find standard module '" + name + "'");
538 return (Type[])list.ToArray(typeof(Type));
542 // Low-level lookup, cache-less
544 static Type LookupTypeReflection (string name)
549 foreach (Assembly a in assemblies){
550 t = a.GetType (name, false, true);
555 foreach (System.Reflection.Module mb in modules) {
556 t = mb.GetType (name, false, true);
561 } catch (Exception e) {
562 System.Console.WriteLine("\nERROR: " + e.ToString() + "WHILE EXECUTING LookupTypeReflection(\"" + name + "\")\n");
567 static CaseInsensitiveHashtable negative_hits;
569 // This function is used when you want to avoid the lookups, and want to go
570 // directly to the source. This will use the cache.
572 // Notice that bypassing the cache is bad, because on Microsoft.NET runtime
573 // GetType ("DynamicType[]") != GetType ("DynamicType[]"), and there is no
574 // way to test things other than doing a fullname compare
576 public static Type LookupTypeDirect (string name)
578 Type t = (Type) types [name];
582 if (negative_hits.Contains (name))
584 t = LookupTypeReflection (name);
586 negative_hits [name] = null;
593 /// Returns the Type associated with @name, takes care of the fact that
594 /// reflection expects nested types to be separated from the main type
595 /// with a "+" instead of a "."
597 public static Type LookupType (string name)
602 // First lookup in user defined and cached values
605 t = (Type) types [name];
609 if (negative_hits.Contains (name))
613 // Optimization: ComposedCast will work with an existing type, and might already have the
614 // full name of the type, so the full system lookup can probably be avoided.
617 string [] elements = name.Split ('.');
618 int count = elements.Length;
620 for (int n = 1; n <= count; n++){
621 string top_level_type = String.Join (".", elements, 0, n);
623 if (negative_hits.Contains (top_level_type))
626 t = (Type) types [top_level_type];
628 t = LookupTypeReflection (top_level_type);
630 negative_hits [top_level_type] = null;
640 string newt = top_level_type + "+" + String.Join ("+", elements, n, count - n);
641 t = LookupTypeReflection (newt);
643 negative_hits [name] = null;
648 negative_hits [name] = null;
653 // Returns a list of all namespaces in the assemblies and types loaded.
655 public static CaseInsensitiveHashtable GetNamespaces ()
657 CaseInsensitiveHashtable namespaces = new CaseInsensitiveHashtable ();
659 foreach (Assembly a in assemblies) {
660 foreach (Type t in a.GetTypes ()) {
661 string ns = t.Namespace;
663 if (namespaces.Contains (ns))
665 namespaces [ns] = ns;
669 foreach (System.Reflection.Module mb in modules) {
670 foreach (Type t in mb.GetTypes ()) {
671 string ns = t.Namespace;
673 if (namespaces.Contains (ns))
675 namespaces [ns] = ns;
683 /// Returns the C# name of a type if possible, or the full type name otherwise
685 static public string MonoBASIC_Name (Type t)
687 return Regex.Replace (t.FullName,
689 @"(Int32|Int16|Int64|Single|Double|Char|Decimal|Byte|Object|Boolean|String|DateTime)" +
691 new MatchEvaluator (MonoBASIC_NameMatch));
694 static String MonoBASIC_NameMatch (Match match)
696 string s = match.Groups [1].Captures [0].Value;
698 Replace ("int32", "integer").
699 Replace ("int16", "short").
700 Replace ("int64", "long").
701 Replace ("datetime", "date")
702 + match.Groups [2].Captures [0].Value;
706 /// Returns the signature of the method
708 static public string MonoBASIC_Signature (MethodBase mb)
713 // FIXME: We should really have a single function to do
714 // everything instead of the following 5 line pattern
716 ParameterData iparams = LookupParametersByBuilder (mb);
718 if (iparams == null){
719 ParameterInfo [] pi = mb.GetParameters ();
720 iparams = new ReflectionParameters (pi);
723 for (int i = 0; i < iparams.Count; i++) {
727 sig += iparams.ParameterDesc(i);
731 return mb.DeclaringType.Name + "." + mb.Name + sig;
735 /// Looks up a type, and aborts if it is not found. This is used
736 /// by types required by the compiler
738 static Type CoreLookupType (string name)
740 Type t = LookupType (name);
743 Report.Error (518, "The predefined type '" + name + "' is not defined or imported");
744 Environment.Exit (0);
751 /// Returns the MethodInfo for a method named 'name' defined
752 /// in type 't' which takes arguments of types 'args'
754 static MethodInfo GetMethod (Type t, string name, Type [] args)
762 list = FindMembers (t, MemberTypes.Method, instance_and_static | BindingFlags.Public| BindingFlags.IgnoreCase,
763 signature_filter, sig);
764 if (list.Count == 0) {
765 Report.Error (-19, "Can not find the core function '" + name + "'");
769 MethodInfo mi = list [0] as MethodInfo;
771 Report.Error (-19, "Can not find the core function '" + name + "'");
779 /// Returns the ConstructorInfo for "args"
781 public static ConstructorInfo GetConstructor (Type t, Type [] args)
789 list = FindMembers (t, MemberTypes.Constructor,
790 instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly | BindingFlags.IgnoreCase,
791 signature_filter, sig);
792 if (list.Count == 0){
793 Report.Error (-19, "Can not find the core constructor for type '" + t.Name + "'");
797 ConstructorInfo ci = list [0] as ConstructorInfo;
799 Report.Error (-19, "Can not find the core constructor for type '" + t.Name + "'");
806 public static void InitEnumUnderlyingTypes ()
809 int32_type = CoreLookupType ("System.Int32");
810 int64_type = CoreLookupType ("System.Int64");
811 uint32_type = CoreLookupType ("System.UInt32");
812 uint64_type = CoreLookupType ("System.UInt64");
813 byte_type = CoreLookupType ("System.Byte");
814 sbyte_type = CoreLookupType ("System.SByte");
815 short_type = CoreLookupType ("System.Int16");
816 ushort_type = CoreLookupType ("System.UInt16");
820 /// The types have to be initialized after the initial
821 /// population of the type has happened (for example, to
822 /// bootstrap the corlib.dll
824 public static void InitCoreTypes ()
826 object_type = CoreLookupType ("System.Object");
827 value_type = CoreLookupType ("System.ValueType");
829 InitEnumUnderlyingTypes ();
831 char_type = CoreLookupType ("System.Char");
832 string_type = CoreLookupType ("System.String");
833 float_type = CoreLookupType ("System.Single");
834 double_type = CoreLookupType ("System.Double");
835 char_ptr_type = CoreLookupType ("System.Char*");
836 decimal_type = CoreLookupType ("System.Decimal");
837 bool_type = CoreLookupType ("System.Boolean");
838 enum_type = CoreLookupType ("System.Enum");
840 multicast_delegate_type = CoreLookupType ("System.MulticastDelegate");
841 delegate_type = CoreLookupType ("System.Delegate");
843 array_type = CoreLookupType ("System.Array");
844 void_type = CoreLookupType ("System.Void");
845 date_type = CoreLookupType ("System.DateTime");
846 type_type = CoreLookupType ("System.Type");
848 runtime_field_handle_type = CoreLookupType ("System.RuntimeFieldHandle");
849 runtime_helpers_type = CoreLookupType ("System.Runtime.CompilerServices.RuntimeHelpers");
850 default_member_type = CoreLookupType ("System.Reflection.DefaultMemberAttribute");
851 runtime_handle_type = CoreLookupType ("System.RuntimeTypeHandle");
852 asynccallback_type = CoreLookupType ("System.AsyncCallback");
853 iasyncresult_type = CoreLookupType ("System.IAsyncResult");
854 ienumerator_type = CoreLookupType ("System.Collections.IEnumerator");
855 idisposable_type = CoreLookupType ("System.IDisposable");
856 icloneable_type = CoreLookupType ("System.ICloneable");
857 monitor_type = CoreLookupType ("System.Threading.Monitor");
858 intptr_type = CoreLookupType ("System.IntPtr");
860 attribute_type = CoreLookupType ("System.Attribute");
861 attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
862 dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
863 methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
864 marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
865 param_array_type = CoreLookupType ("System.ParamArrayAttribute");
867 unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
869 void_ptr_type = CoreLookupType ("System.Void*");
871 indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
873 exception_type = CoreLookupType ("System.Exception");
878 obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
879 conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
882 // When compiling corlib, store the "real" types here.
884 if (!RootContext.StdLib) {
885 system_int32_type = typeof (System.Int32);
886 system_array_type = typeof (System.Array);
887 system_type_type = typeof (System.Type);
888 system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
890 Type [] void_arg = { };
891 system_int_array_get_length = GetMethod (
892 system_array_type, "get_Length", void_arg);
893 system_int_array_get_rank = GetMethod (
894 system_array_type, "get_Rank", void_arg);
895 system_object_array_clone = GetMethod (
896 system_array_type, "Clone", void_arg);
898 Type [] system_int_arg = { system_int32_type };
899 system_int_array_get_length_int = GetMethod (
900 system_array_type, "GetLength", system_int_arg);
901 system_int_array_get_upper_bound_int = GetMethod (
902 system_array_type, "GetUpperBound", system_int_arg);
903 system_int_array_get_lower_bound_int = GetMethod (
904 system_array_type, "GetLowerBound", system_int_arg);
906 Type [] system_array_int_arg = { system_array_type, system_int32_type };
907 system_void_array_copyto_array_int = GetMethod (
908 system_array_type, "CopyTo", system_array_int_arg);
910 Type [] system_type_type_arg = { system_type_type, system_type_type, system_type_type };
913 system_void_set_corlib_type_builders = GetMethod (
914 system_assemblybuilder_type, "SetCorlibTypeBuilders",
915 system_type_type_arg);
917 object[] args = new object [3];
918 args [0] = object_type;
919 args [1] = value_type;
920 args [2] = enum_type;
922 system_void_set_corlib_type_builders.Invoke (CodeGen.AssemblyBuilder, args);
924 Console.WriteLine ("Corlib compilation is not supported in Microsoft.NET due to bugs in it");
930 // The helper methods that are used by the compiler
932 public static void InitCodeHelpers ()
935 // Now load the default methods that we use.
937 Type [] string_string = { string_type, string_type };
938 string_concat_string_string = GetMethod (
939 string_type, "Concat", string_string);
941 Type [] object_object = { object_type, object_type };
942 string_concat_object_object = GetMethod (
943 string_type, "Concat", object_object);
945 Type [] string_ = { string_type };
946 string_isinterneted_string = GetMethod (
947 string_type, "IsInterned", string_);
949 Type [] runtime_type_handle = { runtime_handle_type };
950 system_type_get_type_from_handle = GetMethod (
951 type_type, "GetTypeFromHandle", runtime_type_handle);
953 Type [] delegate_delegate = { delegate_type, delegate_type };
954 delegate_combine_delegate_delegate = GetMethod (
955 delegate_type, "Combine", delegate_delegate);
957 delegate_remove_delegate_delegate = GetMethod (
958 delegate_type, "Remove", delegate_delegate);
963 Type [] void_arg = { };
964 object_getcurrent_void = GetMethod (
965 ienumerator_type, "get_Current", void_arg);
966 bool_movenext_void = GetMethod (
967 ienumerator_type, "MoveNext", void_arg);
968 void_dispose_void = GetMethod (
969 idisposable_type, "Dispose", void_arg);
970 int_get_offset_to_string_data = GetMethod (
971 runtime_helpers_type, "get_OffsetToStringData", void_arg);
972 int_array_get_length = GetMethod (
973 array_type, "get_Length", void_arg);
974 int_array_get_rank = GetMethod (
975 array_type, "get_Rank", void_arg);
980 Type [] int_arg = { int32_type };
981 int_array_get_length_int = GetMethod (
982 array_type, "GetLength", int_arg);
983 int_array_get_upper_bound_int = GetMethod (
984 array_type, "GetUpperBound", int_arg);
985 int_array_get_lower_bound_int = GetMethod (
986 array_type, "GetLowerBound", int_arg);
989 // System.Array methods
991 object_array_clone = GetMethod (
992 array_type, "Clone", void_arg);
993 Type [] array_int_arg = { array_type, int32_type };
994 void_array_copyto_array_int = GetMethod (
995 array_type, "CopyTo", array_int_arg);
1000 Type [] object_arg = { object_type };
1001 void_monitor_enter_object = GetMethod (
1002 monitor_type, "Enter", object_arg);
1003 void_monitor_exit_object = GetMethod (
1004 monitor_type, "Exit", object_arg);
1006 Type [] array_field_handle_arg = { array_type, runtime_field_handle_type };
1008 void_initializearray_array_fieldhandle = GetMethod (
1009 runtime_helpers_type, "InitializeArray", array_field_handle_arg);
1014 int_getlength_int = GetMethod (
1015 array_type, "GetLength", int_arg);
1018 // Decimal constructors
1020 Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
1021 void_decimal_ctor_five_args = GetConstructor (
1022 decimal_type, dec_arg);
1024 // DateTime constructor
1025 Type [] ticks_arg = { int64_type };
1026 void_datetime_ctor_ticks_arg = GetConstructor ( date_type, ticks_arg);
1031 cons_param_array_attribute = GetConstructor (
1032 param_array_type, void_arg);
1034 unverifiable_code_ctor = GetConstructor (
1035 unverifiable_code_type, void_arg);
1037 default_member_ctor = GetConstructor (
1038 default_member_type, string_);
1041 const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
1043 static CaseInsensitiveHashtable type_hash = new CaseInsensitiveHashtable ();
1046 /// This is the "old", non-cache based FindMembers() function. We cannot use
1047 /// the cache here because there is no member name argument.
1049 public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1050 MemberFilter filter, object criteria)
1052 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1053 bf |= BindingFlags.IgnoreCase;
1055 // 'builder_to_declspace' contains all dynamic types.
1059 Timer.StartTimer (TimerType.FindMembers);
1060 list = decl.FindMembers (mt, bf, filter, criteria);
1061 Timer.StopTimer (TimerType.FindMembers);
1066 // We have to take care of arrays specially, because GetType on
1067 // a TypeBuilder array will return a Type, not a TypeBuilder,
1068 // and we can not call FindMembers on this type.
1070 if (t.IsSubclassOf (TypeManager.array_type))
1071 return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
1074 // Since FindMembers will not lookup both static and instance
1075 // members, we emulate this behaviour here.
1077 if ((bf & instance_and_static) == instance_and_static){
1078 MemberInfo [] i_members = t.FindMembers (
1079 mt, (bf & ~BindingFlags.Static) | BindingFlags.IgnoreCase, filter, criteria);
1081 int i_len = i_members.Length;
1083 MemberInfo one = i_members [0];
1086 // If any of these are present, we are done!
1088 if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
1089 return new MemberList (i_members);
1092 MemberInfo [] s_members = t.FindMembers (
1093 mt, (bf & ~BindingFlags.Instance) | BindingFlags.IgnoreCase, filter, criteria);
1095 int s_len = s_members.Length;
1096 if (i_len > 0 || s_len > 0)
1097 return new MemberList (i_members, s_members);
1100 return new MemberList (i_members);
1102 return new MemberList (s_members);
1106 return new MemberList (t.FindMembers (mt, bf, filter, criteria));
1111 /// This method is only called from within MemberLookup. It tries to use the member
1112 /// cache if possible and falls back to the normal FindMembers if not. The 'used_cache'
1113 /// flag tells the caller whether we used the cache or not. If we used the cache, then
1114 /// our return value will already contain all inherited members and the caller don't need
1115 /// to check base classes and interfaces anymore.
1117 private static MemberList MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
1118 string name, out bool used_cache)
1121 // We have to take care of arrays specially, because GetType on
1122 // a TypeBuilder array will return a Type, not a TypeBuilder,
1123 // and we can not call FindMembers on this type.
1125 if (t.IsSubclassOf (TypeManager.array_type)) {
1127 return TypeHandle.ArrayType.MemberCache.FindMembers (
1128 mt, bf, name, FilterWithClosure_delegate, null);
1132 // If this is a dynamic type, it's always in the 'builder_to_declspace' hash table
1133 // and we can ask the DeclSpace for the MemberCache.
1135 if (t is TypeBuilder) {
1136 DeclSpace decl = (DeclSpace) builder_to_declspace [t];
1137 MemberCache cache = decl.MemberCache;
1140 // If this DeclSpace has a MemberCache, use it.
1143 if (cache != null) {
1145 return cache.FindMembers (
1146 mt, bf, name, FilterWithClosure_delegate, null);
1149 // If there is no MemberCache, we need to use the "normal" FindMembers.
1152 Timer.StartTimer (TimerType.FindMembers);
1153 list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly | BindingFlags.IgnoreCase,
1154 FilterWithClosure_delegate, name);
1155 Timer.StopTimer (TimerType.FindMembers);
1161 // This call will always succeed. There is exactly one TypeHandle instance per
1162 // type, TypeHandle.GetTypeHandle() will either return it or create a new one
1163 // if it didn't already exist.
1165 TypeHandle handle = TypeHandle.GetTypeHandle (t);
1168 return handle.MemberCache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
1171 public static bool IsBuiltinType (Type t)
1173 if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
1174 t == int64_type || t == uint64_type || t == float_type || t == double_type ||
1175 t == char_type || t == short_type || t == decimal_type || t == bool_type ||
1176 t == sbyte_type || t == byte_type || t == ushort_type || t == void_type ||
1183 public static bool IsDelegateType (Type t)
1185 if (t.IsSubclassOf (TypeManager.delegate_type))
1191 public static bool IsEnumType (Type t)
1193 if (t.IsSubclassOf (TypeManager.enum_type))
1200 // Whether a type is unmanaged. This is used by the unsafe code (25.2)
1202 public static bool IsUnmanagedType (Type t)
1204 if (IsBuiltinType (t) && t != TypeManager.string_type)
1213 if (IsValueType (t)){
1214 if (t is TypeBuilder){
1215 TypeContainer tc = LookupTypeContainer (t);
1217 foreach (Field f in tc.Fields){
1218 if (f.FieldBuilder.IsStatic)
1220 if (!IsUnmanagedType (f.FieldBuilder.FieldType))
1224 FieldInfo [] fields = t.GetFields ();
1226 foreach (FieldInfo f in fields){
1229 if (!IsUnmanagedType (f.FieldType))
1239 public static bool IsValueType (Type t)
1241 if (t.IsSubclassOf (TypeManager.value_type))
1247 public static bool IsInterfaceType (Type t)
1249 Interface iface = builder_to_declspace [t] as Interface;
1258 // Checks whether 'type' is a subclass or nested child of 'parent'.
1260 public static bool IsSubclassOrNestedChildOf (Type type, Type parent)
1263 if ((type == parent) || type.IsSubclassOf (parent))
1266 // Handle nested types.
1267 type = type.DeclaringType;
1268 } while (type != null);
1274 // Checks whether 'type' is a nested child of 'parent'.
1276 public static bool IsNestedChildOf (Type type, Type parent)
1278 if ((type == parent) || type.IsSubclassOf (parent))
1281 return IsSubclassOrNestedChildOf (type, parent);
1285 /// Returns the User Defined Types
1287 public static ArrayList UserTypes {
1293 public static CaseInsensitiveHashtable TypeContainers {
1295 return typecontainers;
1299 static Hashtable builder_to_constant;
1301 public static void RegisterConstant (FieldBuilder fb, Const c)
1303 if (builder_to_constant == null)
1304 builder_to_constant = new PtrHashtable ();
1306 if (builder_to_constant.Contains (fb))
1309 builder_to_constant.Add (fb, c);
1312 public static Const LookupConstant (FieldBuilder fb)
1314 if (builder_to_constant == null)
1317 return (Const) builder_to_constant [fb];
1321 /// Gigantic work around for missing features in System.Reflection.Emit follows.
1325 /// Since System.Reflection.Emit can not return MethodBase.GetParameters
1326 /// for anything which is dynamic, and we need this in a number of places,
1327 /// we register this information here, and use it afterwards.
1329 static public bool RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
1334 method_arguments.Add (mb, args);
1335 method_internal_params.Add (mb, ip);
1340 static public InternalParameters LookupParametersByBuilder (MethodBase mb)
1342 if (! (mb is ConstructorBuilder || mb is MethodBuilder))
1345 if (method_internal_params.Contains (mb))
1346 return (InternalParameters) method_internal_params [mb];
1348 throw new Exception ("Argument for Method not registered" + mb);
1352 /// Returns the argument types for a method based on its methodbase
1354 /// For dynamic methods, we use the compiler provided types, for
1355 /// methods from existing assemblies we load them from GetParameters,
1356 /// and insert them into the cache
1358 static public Type [] GetArgumentTypes (MethodBase mb)
1360 if (method_arguments.Contains (mb))
1361 return (Type []) method_arguments [mb];
1363 ParameterInfo [] pi = mb.GetParameters ();
1365 Type [] types = new Type [c];
1367 for (int i = 0; i < c; i++)
1368 types [i] = pi [i].ParameterType;
1370 method_arguments.Add (mb, types);
1376 /// Returns the argument types for an indexer based on its PropertyInfo
1378 /// For dynamic indexers, we use the compiler provided types, for
1379 /// indexers from existing assemblies we load them from GetParameters,
1380 /// and insert them into the cache
1382 static public Type [] GetArgumentTypes (PropertyInfo indexer)
1384 if (indexer_arguments.Contains (indexer))
1385 return (Type []) indexer_arguments [indexer];
1387 // If we're a PropertyBuilder and not in the
1388 // 'indexer_arguments' hash, then we're a property and
1391 MethodInfo mi = indexer.GetSetMethod (true);
1393 mi = indexer.GetGetMethod (true);
1398 ParameterInfo [] pi = mi.GetParameters ();
1403 Type [] types = new Type [c];
1405 for (int i = 0; i < c; i++)
1406 types [i] = pi [i].ParameterType;
1408 indexer_arguments.Add (indexer, types);
1413 ParameterInfo [] pi = indexer.GetIndexParameters ();
1414 // Property, not an indexer.
1418 Type [] types = new Type [c];
1420 for (int i = 0; i < c; i++)
1421 types [i] = pi [i].ParameterType;
1423 indexer_arguments.Add (indexer, types);
1429 // This is a workaround the fact that GetValue is not
1430 // supported for dynamic types
1432 static CaseInsensitiveHashtable fields = new CaseInsensitiveHashtable ();
1433 static public bool RegisterFieldValue (FieldBuilder fb, object value)
1435 if (fields.Contains (fb))
1438 fields.Add (fb, value);
1443 static public object GetValue (FieldBuilder fb)
1448 static CaseInsensitiveHashtable fieldbuilders_to_fields = new CaseInsensitiveHashtable ();
1449 static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
1451 if (fieldbuilders_to_fields.Contains (fb))
1454 fieldbuilders_to_fields.Add (fb, f);
1458 static public FieldBase GetField (FieldInfo fb)
1460 return (FieldBase) fieldbuilders_to_fields [fb];
1463 static CaseInsensitiveHashtable events;
1465 static public bool RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
1468 events = new CaseInsensitiveHashtable ();
1470 if (events.Contains (eb))
1473 events.Add (eb, new Pair (add, remove));
1478 static public MethodInfo GetAddMethod (EventInfo ei)
1480 if (ei is MyEventBuilder) {
1481 Pair pair = (Pair) events [ei];
1483 return (MethodInfo) pair.First;
1485 return ei.GetAddMethod ();
1488 static public MethodInfo GetRemoveMethod (EventInfo ei)
1490 if (ei is MyEventBuilder) {
1491 Pair pair = (Pair) events [ei];
1493 return (MethodInfo) pair.Second;
1495 return ei.GetAddMethod ();
1498 static CaseInsensitiveHashtable priv_fields_events;
1500 static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
1502 if (priv_fields_events == null)
1503 priv_fields_events = new CaseInsensitiveHashtable ();
1505 if (priv_fields_events.Contains (einfo))
1508 priv_fields_events.Add (einfo, builder);
1513 static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
1515 return (MemberInfo) priv_fields_events [ei];
1518 static CaseInsensitiveHashtable properties;
1520 static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase set)
1522 if (properties == null)
1523 properties = new CaseInsensitiveHashtable ();
1525 if (properties.Contains (pb))
1528 properties.Add (pb, new Pair (get, set));
1533 static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get, MethodBase set, Type[] args)
1535 if (!RegisterProperty (pb, get,set))
1538 indexer_arguments.Add (pb, args);
1543 static public MethodInfo GetPropertyGetter (PropertyInfo pi)
1545 if (pi is PropertyBuilder){
1546 Pair de = (Pair) properties [pi];
1548 return (MethodInfo) de.Second;
1550 return pi.GetSetMethod (true);
1553 static public MethodInfo GetPropertySetter (PropertyInfo pi)
1555 if (pi is PropertyBuilder){
1556 Pair de = (Pair) properties [pi];
1558 return (MethodInfo) de.First;
1560 return pi.GetGetMethod (true);
1564 /// Given an array of interface types, expand and eliminate repeated ocurrences
1565 /// of an interface.
1569 /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
1573 public static Type [] ExpandInterfaces (Type [] base_interfaces)
1575 ArrayList new_ifaces = new ArrayList();
1576 ExpandAllInterfaces (base_interfaces, ref new_ifaces);
1577 Type [] ret = new Type [new_ifaces.Count];
1578 new_ifaces.CopyTo (ret, 0);
1584 /// Recursively finds out each base interface in case
1585 /// of multiple inheritance
1587 public static void ExpandAllInterfaces
1588 (Type [] base_interfaces, ref ArrayList new_ifaces)
1590 foreach (Type iface in base_interfaces) {
1591 if (!new_ifaces.Contains (iface))
1592 new_ifaces.Add (iface);
1594 Type [] implementing = TypeManager.GetInterfaces (iface);
1596 // Incase any base interface is present call this function again
1598 if (implementing.Length != 0)
1599 ExpandAllInterfaces (implementing, ref new_ifaces);
1604 /// This function returns the interfaces in the type 't'. Works with
1605 /// both types and TypeBuilders.
1607 public static Type [] GetInterfaces (Type t)
1610 // The reason for catching the Array case is that Reflection.Emit
1611 // will not return a TypeBuilder for Array types of TypeBuilder types,
1612 // but will still throw an exception if we try to call GetInterfaces
1615 // Since the array interfaces are always constant, we return those for
1620 t = TypeManager.array_type;
1622 if (t is TypeBuilder){
1623 Type [] parent_ifaces;
1625 if (t.BaseType == null)
1626 parent_ifaces = NoTypes;
1628 parent_ifaces = GetInterfaces (t.BaseType);
1629 Type [] type_ifaces = (Type []) builder_to_ifaces [t];
1630 if (type_ifaces == null)
1631 type_ifaces = NoTypes;
1633 int parent_count = parent_ifaces.Length;
1634 Type [] result = new Type [parent_count + type_ifaces.Length];
1635 parent_ifaces.CopyTo (result, 0);
1636 type_ifaces.CopyTo (result, parent_count);
1640 return t.GetInterfaces ();
1644 /// The following is used to check if a given type implements an interface.
1645 /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
1647 public static bool ImplementsInterface (Type t, Type iface)
1652 // FIXME OPTIMIZATION:
1653 // as soon as we hit a non-TypeBuiler in the interface
1654 // chain, we could return, as the 'Type.GetInterfaces'
1655 // will return all the interfaces implement by the type
1659 interfaces = GetInterfaces (t);
1661 if (interfaces != null){
1662 foreach (Type i in interfaces){
1669 } while (t != null);
1674 // This is a custom version of Convert.ChangeType() which works
1675 // with the TypeBuilder defined types when compiling corlib.
1676 public static object ChangeType (object value, Type conversionType)
1678 if (!(value is IConvertible))
1679 throw new ArgumentException ();
1681 IConvertible convertValue = (IConvertible) value;
1682 CultureInfo ci = CultureInfo.CurrentCulture;
1683 NumberFormatInfo provider = ci.NumberFormat;
1686 // We must use Type.Equals() here since 'conversionType' is
1687 // the TypeBuilder created version of a system type and not
1688 // the system type itself. You cannot use Type.GetTypeCode()
1689 // on such a type - it'd always return TypeCode.Object.
1691 if (conversionType.Equals (typeof (Boolean)))
1692 return (object)(convertValue.ToBoolean (provider));
1693 else if (conversionType.Equals (typeof (Byte)))
1694 return (object)(convertValue.ToByte (provider));
1695 else if (conversionType.Equals (typeof (Char)))
1696 return (object)(convertValue.ToChar (provider));
1697 else if (conversionType.Equals (typeof (DateTime)))
1698 return (object)(convertValue.ToDateTime (provider));
1699 else if (conversionType.Equals (typeof (Decimal)))
1700 return (object)(convertValue.ToDecimal (provider));
1701 else if (conversionType.Equals (typeof (Double)))
1702 return (object)(convertValue.ToDouble (provider));
1703 else if (conversionType.Equals (typeof (Int16)))
1704 return (object)(convertValue.ToInt16 (provider));
1705 else if (conversionType.Equals (typeof (Int32)))
1706 return (object)(convertValue.ToInt32 (provider));
1707 else if (conversionType.Equals (typeof (Int64)))
1708 return (object)(convertValue.ToInt64 (provider));
1709 else if (conversionType.Equals (typeof (SByte)))
1710 return (object)(convertValue.ToSByte (provider));
1711 else if (conversionType.Equals (typeof (Single)))
1712 return (object)(convertValue.ToSingle (provider));
1713 else if (conversionType.Equals (typeof (String)))
1714 return (object)(convertValue.ToString (provider));
1715 else if (conversionType.Equals (typeof (UInt16)))
1716 return (object)(convertValue.ToUInt16 (provider));
1717 else if (conversionType.Equals (typeof (UInt32)))
1718 return (object)(convertValue.ToUInt32 (provider));
1719 else if (conversionType.Equals (typeof (UInt64)))
1720 return (object)(convertValue.ToUInt64 (provider));
1721 else if (conversionType.Equals (typeof (Object)))
1722 return (object)(value);
1724 throw new InvalidCastException ();
1728 // This is needed, because enumerations from assemblies
1729 // do not report their underlyingtype, but they report
1732 public static Type EnumToUnderlying (Type t)
1734 if (t == TypeManager.enum_type)
1737 t = t.UnderlyingSystemType;
1738 if (!TypeManager.IsEnumType (t))
1741 if (t is TypeBuilder) {
1742 // slow path needed to compile corlib
1743 if (t == TypeManager.bool_type ||
1744 t == TypeManager.byte_type ||
1745 t == TypeManager.sbyte_type ||
1746 t == TypeManager.char_type ||
1747 t == TypeManager.short_type ||
1748 t == TypeManager.ushort_type ||
1749 t == TypeManager.int32_type ||
1750 t == TypeManager.uint32_type ||
1751 t == TypeManager.int64_type ||
1752 t == TypeManager.uint64_type)
1754 throw new Exception ("Unhandled typecode in enum " + " from " + t.AssemblyQualifiedName);
1756 TypeCode tc = Type.GetTypeCode (t);
1759 case TypeCode.Boolean:
1760 return TypeManager.bool_type;
1762 return TypeManager.byte_type;
1763 case TypeCode.SByte:
1764 return TypeManager.sbyte_type;
1766 return TypeManager.char_type;
1767 case TypeCode.Int16:
1768 return TypeManager.short_type;
1769 case TypeCode.UInt16:
1770 return TypeManager.ushort_type;
1771 case TypeCode.Int32:
1772 return TypeManager.int32_type;
1773 case TypeCode.UInt32:
1774 return TypeManager.uint32_type;
1775 case TypeCode.Int64:
1776 return TypeManager.int64_type;
1777 case TypeCode.UInt64:
1778 return TypeManager.uint64_type;
1780 throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
1784 // When compiling corlib and called with one of the core types, return
1785 // the corresponding typebuilder for that type.
1787 public static Type TypeToCoreType (Type t)
1789 if (RootContext.StdLib || (t is TypeBuilder))
1792 TypeCode tc = Type.GetTypeCode (t);
1795 case TypeCode.Boolean:
1796 return TypeManager.bool_type;
1798 return TypeManager.byte_type;
1799 case TypeCode.SByte:
1800 return TypeManager.sbyte_type;
1802 return TypeManager.char_type;
1803 case TypeCode.Int16:
1804 return TypeManager.short_type;
1805 case TypeCode.UInt16:
1806 return TypeManager.ushort_type;
1807 case TypeCode.Int32:
1808 return TypeManager.int32_type;
1809 case TypeCode.UInt32:
1810 return TypeManager.uint32_type;
1811 case TypeCode.Int64:
1812 return TypeManager.int64_type;
1813 case TypeCode.UInt64:
1814 return TypeManager.uint64_type;
1815 case TypeCode.String:
1816 return TypeManager.string_type;
1817 case TypeCode.DateTime:
1818 return TypeManager.date_type;
1820 if (t == typeof (void))
1821 return TypeManager.void_type;
1822 if (t == typeof (object))
1823 return TypeManager.object_type;
1824 if (t == typeof (System.Type))
1825 return TypeManager.type_type;
1831 /// Utility function that can be used to probe whether a type
1832 /// is managed or not.
1834 public static bool VerifyUnManaged (Type t, Location loc)
1836 if (t.IsValueType || t.IsPointer){
1838 // FIXME: this is more complex, we actually need to
1839 // make sure that the type does not contain any
1845 if (!RootContext.StdLib && (t == TypeManager.decimal_type))
1846 // We need this explicit check here to make it work when
1847 // compiling corlib.
1852 "Cannot take the address or size of a variable of a managed type ('" +
1853 MonoBASIC_Name (t) + "')");
1858 /// Returns the name of the indexer in a given type.
1861 /// The default is not always 'Item'. The user can change this behaviour by
1862 /// using the DefaultMemberAttribute in the class.
1864 /// For example, the String class indexer is named 'Chars' not 'Item'
1866 public static string IndexerPropertyName (Type t)
1868 if (t is TypeBuilder) {
1869 if (t.IsInterface) {
1870 Interface i = LookupInterface (t);
1872 if ((i == null) || (i.DefaultPropName == null))
1875 return i.DefaultPropName;
1877 TypeContainer tc = LookupTypeContainer (t);
1879 if ((tc == null) || (tc.DefaultPropName == null))
1882 return tc.DefaultPropName;
1886 System.Attribute attr = System.Attribute.GetCustomAttribute (
1887 t, TypeManager.default_member_type);
1889 DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
1890 return dma.MemberName;
1896 public static void MakePinned (LocalBuilder builder)
1899 // FIXME: Flag the "LocalBuilder" type as being
1900 // pinned. Figure out API.
1906 // Returns whether the array of memberinfos contains the given method
1908 static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
1910 Type [] new_args = TypeManager.GetArgumentTypes (new_method);
1912 foreach (MethodBase method in array){
1913 if (method.Name != new_method.Name)
1916 Type [] old_args = TypeManager.GetArgumentTypes (method);
1917 int old_count = old_args.Length;
1920 if (new_args.Length != old_count)
1923 for (i = 0; i < old_count; i++){
1924 if (old_args [i] != new_args [i])
1936 // We copy methods from 'new_members' into 'target_list' if the signature
1937 // for the method from in the new list does not exist in the target_list
1939 // The name is assumed to be the same.
1941 public static ArrayList CopyNewMethods (ArrayList target_list, MemberList new_members)
1943 if (target_list == null){
1944 target_list = new ArrayList ();
1946 foreach (MemberInfo mi in new_members){
1947 if (mi is MethodBase)
1948 target_list.Add (mi);
1953 MemberInfo [] target_array = new MemberInfo [target_list.Count];
1954 target_list.CopyTo (target_array, 0);
1956 foreach (MemberInfo mi in new_members){
1957 MethodBase new_method = (MethodBase) mi;
1959 if (!ArrayContainsMethod (target_array, new_method))
1960 target_list.Add (new_method);
1966 public enum MethodFlags {
1968 IsObsoleteError = 2,
1973 // Returns the TypeManager.MethodFlags for this method.
1974 // This emits an error 619 / warning 618 if the method is obsolete.
1975 // In the former case, TypeManager.MethodFlags.IsObsoleteError is returned.
1977 static public MethodFlags GetMethodFlags (MethodBase mb, Location loc)
1979 MethodFlags flags = 0;
1981 if (mb.DeclaringType is TypeBuilder){
1982 MethodData method = (MethodData) builder_to_method [mb];
1983 if (method == null) {
1984 // FIXME: implement Obsolete attribute on Property,
1985 // Indexer and Event.
1989 return method.GetMethodFlags (loc);
1992 object [] attrs = mb.GetCustomAttributes (true);
1993 foreach (object ta in attrs){
1994 if (!(ta is System.Attribute)){
1995 Console.WriteLine ("Unknown type in GetMethodFlags: " + ta);
1998 System.Attribute a = (System.Attribute) ta;
1999 if (a.TypeId == TypeManager.obsolete_attribute_type){
2000 ObsoleteAttribute oa = (ObsoleteAttribute) a;
2002 string method_desc = TypeManager.MonoBASIC_Signature (mb);
2005 Report.Error (619, loc, "Method '" + method_desc +
2006 "' is obsolete: '" + oa.Message + "'");
2007 return MethodFlags.IsObsoleteError;
2009 Report.Warning (618, loc, "Method '" + method_desc +
2010 "' is obsolete: '" + oa.Message + "'");
2012 flags |= MethodFlags.IsObsolete;
2018 // Skip over conditional code.
2020 if (a.TypeId == TypeManager.conditional_attribute_type){
2021 ConditionalAttribute ca = (ConditionalAttribute) a;
2023 if (RootContext.AllDefines [ca.ConditionString] == null)
2024 flags |= MethodFlags.ShouldIgnore;
2031 #region MemberLookup implementation
2034 // Name of the member
2036 static string closure_name;
2039 // Whether we allow private members in the result (since FindMembers
2040 // uses NonPublic for both protected and private), we need to distinguish.
2042 static bool closure_private_ok;
2045 // Who is invoking us and which type is being queried currently.
2047 static Type closure_invocation_type;
2048 static Type closure_queried_type;
2049 static Type closure_start_type;
2052 // The assembly that defines the type is that is calling us
2054 static Assembly closure_invocation_assembly;
2057 // This filter filters by name + whether it is ok to include private
2058 // members in the search
2060 static internal bool FilterWithClosure (MemberInfo m, object filter_criteria)
2063 // Hack: we know that the filter criteria will always be in the 'closure'
2067 if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
2070 if ((closure_start_type == closure_invocation_type) &&
2071 (m.DeclaringType == closure_invocation_type))
2075 // Ugly: we need to find out the type of 'm', and depending
2076 // on this, tell whether we accept or not
2078 if (m is MethodBase){
2079 MethodBase mb = (MethodBase) m;
2080 MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
2082 if (ma == MethodAttributes.Private)
2083 return closure_private_ok || (closure_invocation_type == m.DeclaringType);
2086 // FamAndAssem requires that we not only derivate, but we are on the
2089 if (ma == MethodAttributes.FamANDAssem){
2090 if (closure_invocation_assembly != mb.DeclaringType.Assembly)
2094 // Assembly and FamORAssem succeed if we're in the same assembly.
2095 if ((ma == MethodAttributes.Assembly) || (ma == MethodAttributes.FamORAssem)){
2096 if (closure_invocation_assembly == mb.DeclaringType.Assembly)
2100 // We already know that we aren't in the same assembly.
2101 if (ma == MethodAttributes.Assembly)
2104 // Family and FamANDAssem require that we derive.
2105 if ((ma == MethodAttributes.Family) || (ma == MethodAttributes.FamANDAssem)){
2106 if (closure_invocation_type == null)
2109 if (!IsSubclassOrNestedChildOf (closure_invocation_type, mb.DeclaringType))
2119 if (m is FieldInfo){
2120 FieldInfo fi = (FieldInfo) m;
2121 FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
2123 if (fa == FieldAttributes.Private)
2124 return closure_private_ok || (closure_invocation_type == m.DeclaringType);
2127 // FamAndAssem requires that we not only derivate, but we are on the
2130 if (fa == FieldAttributes.FamANDAssem){
2131 if (closure_invocation_assembly != fi.DeclaringType.Assembly)
2135 // Assembly and FamORAssem succeed if we're in the same assembly.
2136 if ((fa == FieldAttributes.Assembly) || (fa == FieldAttributes.FamORAssem)){
2137 if (closure_invocation_assembly == fi.DeclaringType.Assembly)
2141 // We already know that we aren't in the same assembly.
2142 if (fa == FieldAttributes.Assembly)
2145 // Family and FamANDAssem require that we derive.
2146 if ((fa == FieldAttributes.Family) || (fa == FieldAttributes.FamANDAssem)){
2147 if (closure_invocation_type == null)
2150 if (!IsSubclassOrNestedChildOf (closure_invocation_type, fi.DeclaringType))
2153 // Although a derived class can access protected members of its base class
2154 // it cannot do so through an instance of the base class (CS1540).
2155 if ((closure_invocation_type != closure_start_type) &&
2156 closure_invocation_type.IsSubclassOf (closure_start_type))
2167 // EventInfos and PropertyInfos, return true
2172 static MemberFilter FilterWithClosure_delegate = new MemberFilter (FilterWithClosure);
2175 // Looks up a member called 'name' in the 'queried_type'. This lookup
2176 // is done by code that is contained in the definition for 'invocation_type'.
2178 // The binding flags are 'bf' and the kind of members being looked up are 'mt'
2180 // Returns an array of a single element for everything but Methods/Constructors
2181 // that might return multiple matches.
2183 public static MemberInfo [] MemberLookup (Type invocation_type, Type queried_type,
2184 MemberTypes mt, BindingFlags original_bf, string name)
2186 Timer.StartTimer (TimerType.MemberLookup);
2188 MemberInfo[] retval = RealMemberLookup (invocation_type, queried_type,
2189 mt, original_bf, name);
2191 Timer.StopTimer (TimerType.MemberLookup);
2196 static MemberInfo [] RealMemberLookup (Type invocation_type, Type queried_type,
2197 MemberTypes mt, BindingFlags original_bf, string name)
2199 BindingFlags bf = original_bf;
2201 ArrayList method_list = null;
2202 Type current_type = queried_type;
2203 if (queried_type == null)
2204 throw new ArgumentNullException("queried_type");
2205 bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
2207 bool always_ok_flag = false;
2208 bool skip_iface_check = true, used_cache = false;
2210 closure_name = name;
2211 closure_invocation_type = invocation_type;
2212 closure_invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
2213 closure_start_type = queried_type;
2216 // If we are a nested class, we always have access to our container
2219 if (invocation_type != null){
2220 string invocation_name = invocation_type.FullName;
2221 if (invocation_name.IndexOf ('+') != -1){
2222 string container = queried_type.FullName + "+";
2223 int container_length = container.Length;
2225 if (invocation_name.Length > container_length){
2226 string shared = invocation_name.Substring (0, container_length);
2228 if (shared == container)
2229 always_ok_flag = true;
2238 // 'NonPublic' is lame, because it includes both protected and
2239 // private methods, so we need to control this behavior by
2240 // explicitly tracking if a private method is ok or not.
2242 // The possible cases are:
2243 // public, private and protected (internal does not come into the
2246 if (invocation_type != null){
2247 if (invocation_type == current_type){
2248 private_ok = (bf & BindingFlags.NonPublic) != 0;
2250 private_ok = always_ok_flag;
2252 if (invocation_type.IsSubclassOf (current_type))
2256 bf = original_bf | BindingFlags.NonPublic;
2259 bf = original_bf & ~BindingFlags.NonPublic;
2262 closure_private_ok = private_ok;
2263 closure_queried_type = current_type;
2265 Timer.StopTimer (TimerType.MemberLookup);
2266 bf |= BindingFlags.IgnoreCase;
2267 list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
2269 Timer.StartTimer (TimerType.MemberLookup);
2272 // When queried for an interface type, the cache will automatically check all
2273 // inherited members, so we don't need to do this here. However, this only
2274 // works if we already used the cache in the first iteration of this loop.
2276 // If we used the cache in any further iteration, we can still terminate the
2277 // loop since the cache always looks in all parent classes.
2283 skip_iface_check = false;
2285 if (current_type == TypeManager.object_type)
2288 current_type = current_type.BaseType;
2291 // This happens with interfaces, they have a null
2292 // basetype. Look members up in the Object class.
2294 if (current_type == null)
2295 current_type = TypeManager.object_type;
2298 if (list.Count == 0)
2302 // Events and types are returned by both 'static' and 'instance'
2303 // searches, which means that our above FindMembers will
2304 // return two copies of the same.
2306 if (list.Count == 1 && !(list [0] is MethodBase)){
2307 return (MemberInfo []) list;
2311 // Multiple properties: we query those just to find out the indexer
2314 if (list [0] is PropertyInfo)
2315 return (MemberInfo []) list;
2318 // We found methods, turn the search into "method scan"
2322 method_list = CopyNewMethods (method_list, list);
2323 mt &= (MemberTypes.Method | MemberTypes.Constructor);
2324 } while (searching);
2326 if (method_list != null && method_list.Count > 0)
2327 return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
2330 // This happens if we already used the cache in the first iteration, in this case
2331 // the cache already looked in all interfaces.
2333 if (skip_iface_check)
2337 // Interfaces do not list members they inherit, so we have to
2340 if (!queried_type.IsInterface)
2343 if (queried_type.IsArray)
2344 queried_type = TypeManager.array_type;
2346 Type [] ifaces = GetInterfaces (queried_type);
2350 foreach (Type itype in ifaces){
2353 x = MemberLookup (null, itype, mt, bf, name);
2365 /// There is exactly one instance of this class per type.
2367 public sealed class TypeHandle : IMemberContainer {
2368 public readonly TypeHandle BaseType;
2370 readonly int id = ++next_id;
2371 static int next_id = 0;
2374 /// Lookup a TypeHandle instance for the given type. If the type doesn't have
2375 /// a TypeHandle yet, a new instance of it is created. This static method
2376 /// ensures that we'll only have one TypeHandle instance per type.
2378 public static TypeHandle GetTypeHandle (Type t)
2380 TypeHandle handle = (TypeHandle) type_hash [t];
2384 handle = new TypeHandle (t);
2385 type_hash.Add (t, handle);
2390 /// Returns the TypeHandle for TypeManager.object_type.
2392 public static IMemberContainer ObjectType {
2394 if (object_type != null)
2397 object_type = GetTypeHandle (TypeManager.object_type);
2404 /// Returns the TypeHandle for TypeManager.array_type.
2406 public static IMemberContainer ArrayType {
2408 if (array_type != null)
2411 array_type = GetTypeHandle (TypeManager.array_type);
2417 private static PtrHashtable type_hash = new PtrHashtable ();
2419 private static TypeHandle object_type = null;
2420 private static TypeHandle array_type = null;
2423 private bool is_interface;
2424 private MemberCache member_cache;
2426 private TypeHandle (Type type)
2429 if (type.BaseType != null)
2430 BaseType = GetTypeHandle (type.BaseType);
2431 else if ((type != TypeManager.object_type) && (type != typeof (object)))
2432 is_interface = true;
2433 this.member_cache = new MemberCache (this);
2436 // IMemberContainer methods
2438 public string Name {
2440 return type.FullName;
2450 public IMemberContainer Parent {
2456 public bool IsInterface {
2458 return is_interface;
2462 public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
2464 if (mt == MemberTypes.Event)
2465 return new MemberList (type.GetEvents (bf | BindingFlags.DeclaredOnly));
2467 return new MemberList (type.FindMembers (mt, bf | BindingFlags.DeclaredOnly | BindingFlags.IgnoreCase,
2471 // IMemberFinder methods
2473 public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
2474 MemberFilter filter, object criteria)
2476 return member_cache.FindMembers (mt, bf, name, filter, criteria);
2479 public MemberCache MemberCache {
2481 return member_cache;
2485 public override string ToString ()
2487 if (BaseType != null)
2488 return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
2490 return "TypeHandle (" + id + "," + Name + ")";