//
-// typegen.cs: type generation
+// typemanager.cs: C# type manager
//
// Author: Miguel de Icaza (miguel@gnu.org)
+// Ravi Pratap (ravi@ximian.com)
//
// Licensed under the terms of the GNU GPL
//
// (C) 2001 Ximian, Inc (http://www.ximian.com)
//
//
+#define CACHE
using System;
+using System.Globalization;
using System.Collections;
using System.Reflection;
using System.Reflection.Emit;
+using System.Text.RegularExpressions;
+using System.Runtime.CompilerServices;
+using System.Diagnostics;
namespace Mono.CSharp {
static public Type float_type;
static public Type double_type;
static public Type char_type;
+ static public Type char_ptr_type;
static public Type short_type;
static public Type decimal_type;
static public Type bool_type;
static public Type ushort_type;
static public Type enum_type;
static public Type delegate_type;
+ static public Type multicast_delegate_type;
static public Type void_type;
static public Type enumeration_type;
static public Type array_type;
static public Type intptr_type;
static public Type monitor_type;
static public Type runtime_field_handle_type;
+ static public Type attribute_type;
static public Type attribute_usage_type;
static public Type dllimport_type;
+ static public Type unverifiable_code_type;
+ static public Type methodimpl_attr_type;
+ static public Type marshal_as_attr_type;
static public Type param_array_type;
+ static public Type void_ptr_type;
+ static public Type indexer_name_type;
+ static public object obsolete_attribute_type;
+ static public object conditional_attribute_type;
+
+ static public Type [] NoTypes;
+
//
// Internal, not really used outside
//
- Type runtime_helpers_type;
+ static Type runtime_helpers_type;
//
// These methods are called by code generated by the compiler
static public MethodInfo void_monitor_exit_object;
static public MethodInfo void_initializearray_array_fieldhandle;
static public MethodInfo int_getlength_int;
+ static public MethodInfo delegate_combine_delegate_delegate;
+ static public MethodInfo delegate_remove_delegate_delegate;
+ static public MethodInfo int_get_offset_to_string_data;
+ static public MethodInfo int_array_get_length;
//
// The attribute constructors.
//
static public ConstructorInfo cons_param_array_attribute;
+ static public ConstructorInfo void_decimal_ctor_five_args;
+ static public ConstructorInfo unverifiable_code_ctor;
// <remarks>
// Holds the Array of Assemblies that have been loaded
// (either because it is the default or the user used the
// -r command line option)
// </remarks>
- ArrayList assemblies;
+ static Assembly [] assemblies;
// <remarks>
// Keeps a list of module builders. We used this to do lookups
// on the modulebuilder using GetType -- needed for arrays
// </remarks>
- ArrayList modules;
+ static ModuleBuilder [] modules;
// <remarks>
// This is the type_cache from the assemblies to avoid
// hitting System.Reflection on every lookup.
// </summary>
- Hashtable types;
+ static Hashtable types;
// <remarks>
// This is used to hotld the corresponding TypeContainer objects
// since we need this in FindMembers
// </remarks>
- Hashtable typecontainers;
+ static Hashtable typecontainers;
// <remarks>
// Keeps track of those types that are defined by the
// user's program
// </remarks>
- ArrayList user_types;
+ static ArrayList user_types;
// <remarks>
// Keeps a mapping between TypeBuilders and their TypeContainers
// </remarks>
- static Hashtable builder_to_container;
+ static PtrHashtable builder_to_container;
+
+ // <remarks>
+ // Tracks the interfaces implemented by typebuilders. We only
+ // enter those who do implement or or more interfaces
+ // </remarks>
+ static PtrHashtable builder_to_ifaces;
// <remarks>
// Maps MethodBase.RuntimeTypeHandle to a Type array that contains
// <remarks>
static Hashtable method_internal_params;
- static Hashtable builder_to_interface;
+ static PtrHashtable builder_to_interface;
// <remarks>
// Keeps track of delegate types
static Hashtable builder_to_attr;
- public TypeManager ()
+ struct Signature {
+ public string name;
+ public Type [] args;
+ }
+
+ /// <summary>
+ /// A filter for Findmembers that uses the Signature object to
+ /// extract objects
+ /// </summary>
+ static bool SignatureFilter (MemberInfo mi, object criteria)
{
- assemblies = new ArrayList ();
- modules = new ArrayList ();
- user_types = new ArrayList ();
- types = new Hashtable ();
- typecontainers = new Hashtable ();
- builder_to_interface = new Hashtable ();
- builder_to_delegate = new Hashtable ();
- builder_to_enum = new Hashtable ();
- builder_to_attr = new Hashtable ();
+ Signature sig = (Signature) criteria;
+
+ if (!(mi is MethodBase))
+ return false;
+
+ if (mi.Name != sig.name)
+ return false;
+
+ int count = sig.args.Length;
+
+ if (mi is MethodBuilder || mi is ConstructorBuilder){
+ Type [] candidate_args = GetArgumentTypes ((MethodBase) mi);
+
+ if (candidate_args.Length != count)
+ return false;
+
+ for (int i = 0; i < count; i++)
+ if (candidate_args [i] != sig.args [i])
+ return false;
+
+ return true;
+ } else {
+ ParameterInfo [] pars = ((MethodBase) mi).GetParameters ();
+
+ if (pars.Length != count)
+ return false;
+
+ for (int i = 0; i < count; i++)
+ if (pars [i].ParameterType != sig.args [i])
+ return false;
+ return true;
+ }
}
+ // A delegate that points to the filter above.
+ static MemberFilter signature_filter;
+
static TypeManager ()
{
- method_arguments = new Hashtable ();
- method_internal_params = new Hashtable ();
- builder_to_container = new Hashtable ();
- type_interface_cache = new Hashtable ();
+ assemblies = new Assembly [0];
+ modules = null;
+ user_types = new ArrayList ();
+
+ types = new Hashtable ();
+ typecontainers = new Hashtable ();
+
+ builder_to_interface = new PtrHashtable ();
+ builder_to_delegate = new PtrHashtable ();
+ builder_to_enum = new PtrHashtable ();
+ builder_to_attr = new PtrHashtable ();
+ method_arguments = new PtrHashtable ();
+ method_internal_params = new PtrHashtable ();
+ builder_to_container = new PtrHashtable ();
+ builder_to_ifaces = new PtrHashtable ();
+
+ NoTypes = new Type [0];
+
+ signature_filter = new MemberFilter (SignatureFilter);
}
- static string MakeKey (Type t)
+ public static void AddUserType (string name, TypeBuilder t, Type [] ifaces)
{
- return t.FullName + t.GetHashCode ();
+ try {
+ types.Add (name, t);
+ } catch {
+ Type prev = (Type) types [name];
+ TypeContainer tc = (TypeContainer) builder_to_container [prev];
+
+ if (tc != null){
+ //
+ // This probably never happens, as we catch this before
+ //
+ Report.Error (-17, "The type `" + name + "' has already been defined.");
+ return;
+ }
+
+ tc = (TypeContainer) builder_to_container [t];
+
+ Report.Warning (
+ 1595, "The type `" + name + "' is defined in an existing assembly;"+
+ " Using the new definition from: " + tc.Location);
+ Report.Warning (1595, "Previously defined in: " + prev.Assembly.FullName);
+
+ types.Remove (name);
+ types.Add (name, t);
+ }
+ user_types.Add (t);
+
+ if (ifaces != null)
+ builder_to_ifaces [t] = ifaces;
}
-
- public void AddUserType (string name, TypeBuilder t)
+
+ //
+ // This entry point is used by types that we define under the covers
+ //
+ public static void RegisterBuilder (TypeBuilder tb, Type [] ifaces)
{
- types.Add (name, t);
- user_types.Add (t);
+ if (ifaces != null)
+ builder_to_ifaces [tb] = ifaces;
}
- public void AddUserType (string name, TypeBuilder t, TypeContainer tc)
+ public static void AddUserType (string name, TypeBuilder t, TypeContainer tc, Type [] ifaces)
{
- AddUserType (name, t);
- builder_to_container.Add (MakeKey (t), tc);
+ builder_to_container.Add (t, tc);
typecontainers.Add (name, tc);
+ AddUserType (name, t, ifaces);
}
- public void AddDelegateType (string name, TypeBuilder t, Delegate del)
+ public static void AddDelegateType (string name, TypeBuilder t, Delegate del)
{
types.Add (name, t);
builder_to_delegate.Add (t, del);
}
- public void AddEnumType (string name, TypeBuilder t, Enum en)
+ public static void AddEnumType (string name, TypeBuilder t, Enum en)
{
types.Add (name, t);
- builder_to_enum.Add (MakeKey (t), en);
+ builder_to_enum.Add (t, en);
}
- public void AddUserInterface (string name, TypeBuilder t, Interface i)
+ public static void AddUserInterface (string name, TypeBuilder t, Interface i, Type [] ifaces)
{
- AddUserType (name, t);
- builder_to_interface.Add (MakeKey (t), i);
+ AddUserType (name, t, ifaces);
+ builder_to_interface.Add (t, i);
}
- public void RegisterAttrType (Type t, TypeContainer tc)
+ public static void RegisterAttrType (Type t, TypeContainer tc)
{
- builder_to_attr.Add (MakeKey (t), tc);
+ builder_to_attr.Add (t, tc);
}
/// <summary>
/// </summary>
public static TypeContainer LookupTypeContainer (Type t)
{
- return (TypeContainer) builder_to_container [MakeKey (t)];
+ return (TypeContainer) builder_to_container [t];
}
- public Interface LookupInterface (Type t)
+ public static Interface LookupInterface (Type t)
{
- return (Interface) builder_to_interface [MakeKey (t)];
+ return (Interface) builder_to_interface [t];
}
public static Delegate LookupDelegate (Type t)
public static Enum LookupEnum (Type t)
{
- return (Enum) builder_to_enum [MakeKey (t)];
+ return (Enum) builder_to_enum [t];
}
public static TypeContainer LookupAttr (Type t)
{
- return (TypeContainer) builder_to_attr [MakeKey (t)];
+ return (TypeContainer) builder_to_attr [t];
}
/// <summary>
/// Registers an assembly to load types from.
/// </summary>
- public void AddAssembly (Assembly a)
+ public static void AddAssembly (Assembly a)
{
- assemblies.Add (a);
+ int top = assemblies.Length;
+ Assembly [] n = new Assembly [top + 1];
+
+ assemblies.CopyTo (n, 0);
+
+ n [top] = a;
+ assemblies = n;
}
/// <summary>
/// Registers a module builder to lookup types from
/// </summary>
- public void AddModule (ModuleBuilder mb)
+ public static void AddModule (ModuleBuilder mb)
{
- modules.Add (mb);
+ int top = modules != null ? modules.Length : 0;
+ ModuleBuilder [] n = new ModuleBuilder [top + 1];
+
+ if (modules != null)
+ modules.CopyTo (n, 0);
+ n [top] = mb;
+ modules = n;
}
/// <summary>
/// Returns the Type associated with @name
/// </summary>
- public Type LookupType (string name)
+ public static Type LookupType (string name)
{
Type t;
return t;
}
}
-
+
return null;
}
/// </summary>
static public string CSharpName (Type t)
{
- if (t == int32_type)
- return "int";
- else if (t == uint32_type)
- return "uint";
- else if (t == int64_type)
- return "long";
- else if (t == uint64_type)
- return "ulong";
- else if (t == float_type)
- return "float";
- else if (t == double_type)
- return "double";
- else if (t == char_type)
- return "char";
- else if (t == short_type)
- return "short";
- else if (t == decimal_type)
- return "decimal";
- else if (t == bool_type)
- return "bool";
- else if (t == sbyte_type)
- return "sbyte";
- else if (t == byte_type)
- return "byte";
- else if (t == short_type)
- return "short";
- else if (t == ushort_type)
- return "ushort";
- else if (t == string_type)
- return "string";
- else if (t == object_type)
- return "object";
- else
- return t.FullName;
+ return Regex.Replace (t.FullName,
+ @"^System\." +
+ @"(Int32|UInt32|Int16|Uint16|Int64|UInt64|" +
+ @"Single|Double|Char|Decimal|Byte|SByte|Object|" +
+ @"Boolean|String|Void)" +
+ @"(\W+|\b)",
+ new MatchEvaluator (CSharpNameMatch));
+ }
+
+ static String CSharpNameMatch (Match match)
+ {
+ string s = match.Groups [1].Captures [0].Value;
+ return s.ToLower ().
+ Replace ("int32", "int").
+ Replace ("uint32", "uint").
+ Replace ("int16", "short").
+ Replace ("uint16", "ushort").
+ Replace ("int64", "long").
+ Replace ("uint64", "ulong").
+ Replace ("single", "float").
+ Replace ("boolean", "bool")
+ + match.Groups [2].Captures [0].Value;
}
+ /// <summary>
+ /// Returns the signature of the method
+ /// </summary>
+ static public string CSharpSignature (MethodBase mb)
+ {
+ string sig = "(";
+
+ //
+ // FIXME: We should really have a single function to do
+ // everything instead of the following 5 line pattern
+ //
+ ParameterData iparams = LookupParametersByBuilder (mb);
+
+ if (iparams == null){
+ ParameterInfo [] pi = mb.GetParameters ();
+ iparams = new ReflectionParameters (pi);
+ }
+
+ for (int i = 0; i < iparams.Count; i++) {
+ if (i > 0) {
+ sig += ", ";
+ }
+ sig += iparams.ParameterDesc(i);
+ }
+ sig += ")";
+
+ return mb.DeclaringType.Name + "." + mb.Name + sig;
+ }
+
/// <summary>
/// Looks up a type, and aborts if it is not found. This is used
/// by types required by the compiler
/// </summary>
- Type CoreLookupType (string name)
+ static Type CoreLookupType (string name)
{
Type t = LookupType (name);
- if (t == null)
- throw new Exception ("Can not find core type " + name);
+ if (t == null){
+ Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
+ Environment.Exit (0);
+ }
return t;
}
/// Returns the MethodInfo for a method named `name' defined
/// in type `t' which takes arguments of types `args'
/// </summary>
- MethodInfo GetMethod (Type t, string name, Type [] args)
+ static MethodInfo GetMethod (Type t, string name, Type [] args)
{
- MethodInfo mi = t.GetMethod (name, args);
+ MemberInfo [] mi;
+ Signature sig;
- if (mi == null)
- throw new Exception ("Can not find the core function `" + name + "'");
+ sig.name = name;
+ sig.args = args;
+
+ mi = FindMembers (
+ t, MemberTypes.Method,
+ instance_and_static | BindingFlags.Public, signature_filter, sig);
+ if (mi == null || mi.Length == 0 || !(mi [0] is MethodInfo)){
+ Report.Error (-19, "Can not find the core function `" + name + "'");
+ return null;
+ }
- return mi;
+ return (MethodInfo) mi [0];
}
- ConstructorInfo GetConstructor (Type t, Type [] args)
+ /// <summary>
+ /// Returns the ConstructorInfo for "args"
+ /// </summary>
+ static ConstructorInfo GetConstructor (Type t, Type [] args)
{
- ConstructorInfo ci = t.GetConstructor (args);
+ MemberInfo [] mi;
+ Signature sig;
- if (ci == null)
- throw new Exception ("Can not find the core constructor for `" + t.FullName + "'");
+ sig.name = ".ctor";
+ sig.args = args;
+
+ mi = FindMembers (t, MemberTypes.Constructor,
+ instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly, signature_filter, sig);
+ if (mi == null || mi.Length == 0 || !(mi [0] is ConstructorInfo)){
+ Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
+ return null;
+ }
+
+ return (ConstructorInfo) mi [0];
+ }
+
+ public static void InitEnumUnderlyingTypes ()
+ {
- return ci;
+ int32_type = CoreLookupType ("System.Int32");
+ int64_type = CoreLookupType ("System.Int64");
+ uint32_type = CoreLookupType ("System.UInt32");
+ uint64_type = CoreLookupType ("System.UInt64");
+ byte_type = CoreLookupType ("System.Byte");
+ sbyte_type = CoreLookupType ("System.SByte");
+ short_type = CoreLookupType ("System.Int16");
+ ushort_type = CoreLookupType ("System.UInt16");
}
/// <remarks>
/// population of the type has happened (for example, to
/// bootstrap the corlib.dll
/// </remarks>
- public void InitCoreTypes ()
+ public static void InitCoreTypes ()
{
object_type = CoreLookupType ("System.Object");
value_type = CoreLookupType ("System.ValueType");
+
+ InitEnumUnderlyingTypes ();
+
+ char_type = CoreLookupType ("System.Char");
string_type = CoreLookupType ("System.String");
- int32_type = CoreLookupType ("System.Int32");
- int64_type = CoreLookupType ("System.Int64");
- uint32_type = CoreLookupType ("System.UInt32");
- uint64_type = CoreLookupType ("System.UInt64");
float_type = CoreLookupType ("System.Single");
double_type = CoreLookupType ("System.Double");
- byte_type = CoreLookupType ("System.Byte");
- sbyte_type = CoreLookupType ("System.SByte");
- char_type = CoreLookupType ("System.Char");
- short_type = CoreLookupType ("System.Int16");
- ushort_type = CoreLookupType ("System.UInt16");
+ char_ptr_type = CoreLookupType ("System.Char*");
decimal_type = CoreLookupType ("System.Decimal");
bool_type = CoreLookupType ("System.Boolean");
enum_type = CoreLookupType ("System.Enum");
- delegate_type = CoreLookupType ("System.MulticastDelegate");
+
+ multicast_delegate_type = CoreLookupType ("System.MulticastDelegate");
+ delegate_type = CoreLookupType ("System.Delegate");
+
array_type = CoreLookupType ("System.Array");
void_type = CoreLookupType ("System.Void");
type_type = CoreLookupType ("System.Type");
monitor_type = CoreLookupType ("System.Threading.Monitor");
intptr_type = CoreLookupType ("System.IntPtr");
+ attribute_type = CoreLookupType ("System.Attribute");
attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
- param_array_type = CoreLookupType ("System.ParamArrayAttribute");
-
+ methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
+ marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
+ param_array_type = CoreLookupType ("System.ParamArrayAttribute");
+
+ unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
+
+ void_ptr_type = CoreLookupType ("System.Void*");
+
+ indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
+
+ //
+ // Attribute types
+ //
+ obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
+ conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
+ }
+
+ //
+ // The helper methods that are used by the compiler
+ //
+ public static void InitCodeHelpers ()
+ {
//
// Now load the default methods that we use.
//
system_type_get_type_from_handle = GetMethod (
type_type, "GetTypeFromHandle", runtime_type_handle);
+ Type [] delegate_delegate = { delegate_type, delegate_type };
+ delegate_combine_delegate_delegate = GetMethod (
+ delegate_type, "Combine", delegate_delegate);
+
+ delegate_remove_delegate_delegate = GetMethod (
+ delegate_type, "Remove", delegate_delegate);
+
//
// Void arguments
//
ienumerator_type, "MoveNext", void_arg);
void_dispose_void = GetMethod (
idisposable_type, "Dispose", void_arg);
-
+ int_get_offset_to_string_data = GetMethod (
+ runtime_helpers_type, "get_OffsetToStringData", void_arg);
+ int_array_get_length = GetMethod (
+ array_type, "get_Length", void_arg);
+
//
// object arguments
//
Type [] int_arg = { int32_type };
int_getlength_int = GetMethod (
array_type, "GetLength", int_arg);
+
+ //
+ // Decimal constructors
+ //
+ Type [] dec_arg = { int32_type, int32_type, int32_type, bool_type, byte_type };
+ void_decimal_ctor_five_args = GetConstructor (
+ decimal_type, dec_arg);
//
// Attributes
//
cons_param_array_attribute = GetConstructor (
param_array_type, void_arg);
+
+ unverifiable_code_ctor = GetConstructor (
+ unverifiable_code_type, void_arg);
}
-
- public MemberInfo [] FindMembers (Type t, MemberTypes mt, BindingFlags bf, MemberFilter filter, object criteria)
+
+ const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
+
+ //
+ // FIXME: This can be optimized easily. speedup by having a single builder mapping
+ //
+ public static MemberInfo [] FindMembers (Type t, MemberTypes mt, BindingFlags bf,
+ MemberFilter filter, object criteria)
{
- string key = MakeKey (t);
+ //
+ // We have to take care of arrays specially, because GetType on
+ // a TypeBuilder array will return a Type, not a TypeBuilder,
+ // and we can not call FindMembers on this type.
+ //
+ if (t.IsSubclassOf (TypeManager.array_type))
+ return TypeManager.array_type.FindMembers (mt, bf, filter, criteria);
- if (!(t is TypeBuilder))
+ if (!(t is TypeBuilder)){
+ //
+ // Since FindMembers will not lookup both static and instance
+ // members, we emulate this behaviour here.
+ //
+ if ((bf & instance_and_static) == instance_and_static){
+ MemberInfo [] i_members = t.FindMembers (
+ mt, bf & ~BindingFlags.Static, filter, criteria);
+
+ int i_len = i_members.Length;
+ if (i_len == 1){
+ MemberInfo one = i_members [0];
+
+ //
+ // If any of these are present, we are done!
+ //
+ if ((one is Type) || (one is EventInfo) || (one is FieldInfo))
+ return i_members;
+ }
+
+ MemberInfo [] s_members = t.FindMembers (
+ mt, bf & ~BindingFlags.Instance, filter, criteria);
+
+ int s_len = s_members.Length;
+ if (i_len > 0 || s_len > 0){
+ MemberInfo [] both = new MemberInfo [i_len + s_len];
+
+ i_members.CopyTo (both, 0);
+ s_members.CopyTo (both, i_len);
+
+ return both;
+ } else {
+ if (i_len > 0)
+ return i_members;
+ else
+ return s_members;
+ }
+ }
return t.FindMembers (mt, bf, filter, criteria);
+ }
- Enum e = (Enum) builder_to_enum [key];
+ //
+ // FIXME: We should not have builder_to_blah everywhere,
+ // we should just have a builder_to_findmemberizable
+ // and have them implement a new ICanFindMembers interface
+ //
+ Enum e = (Enum) builder_to_enum [t];
if (e != null)
return e.FindMembers (mt, bf, filter, criteria);
if (del != null)
return del.FindMembers (mt, bf, filter, criteria);
- Interface iface = (Interface) builder_to_interface [key];
+ Interface iface = (Interface) builder_to_interface [t];
if (iface != null)
return iface.FindMembers (mt, bf, filter, criteria);
- TypeContainer tc = (TypeContainer) builder_to_container [key];
+ TypeContainer tc = (TypeContainer) builder_to_container [t];
if (tc != null)
- return tc.FindMembers (mt, bf, filter, criteria);
+ return tc.FindMembers (mt, bf, filter, criteria);
return null;
}
/// <summary>
/// Returns the User Defined Types
/// </summary>
- public ArrayList UserTypes {
+ public static ArrayList UserTypes {
get {
return user_types;
}
}
- public Hashtable TypeContainers {
+ public static Hashtable TypeContainers {
get {
return typecontainers;
}
}
- static string GetSig (MethodBase mb)
- {
- if (mb is MethodBuilder || mb is ConstructorBuilder)
- return mb.ReflectedType.FullName + ":" + mb;
- else
- return mb.MethodHandle.ToString ();
- }
-
static Hashtable builder_to_constant;
public static void RegisterConstant (FieldBuilder fb, Const c)
{
if (builder_to_constant == null)
- builder_to_constant = new Hashtable ();
+ builder_to_constant = new PtrHashtable ();
if (builder_to_constant.Contains (fb))
return;
return (Const) builder_to_constant [fb];
}
-
- static Hashtable delegate_to_data;
-
- public static void RegisterDelegateData (Type del_type, DictionaryEntry de)
- {
- if (delegate_to_data == null)
- delegate_to_data = new Hashtable ();
-
- delegate_to_data.Add (del_type, de);
- }
-
- public static DictionaryEntry GetDelegateData (Type t)
- {
- return (DictionaryEntry) delegate_to_data [t];
- }
-
- //
- // Gigantic work around for stupidity in System.Reflection.Emit follows
- //
- // Since System.Reflection.Emit can not return MethodBase.GetParameters
- // for anything which is dynamic, and we need this in a number of places,
- // we register this information here, and use it afterwards.
- //
+ /// <summary>
+ /// Gigantic work around for missing features in System.Reflection.Emit follows.
+ /// </summary>
+ ///
+ /// <remarks>
+ /// Since System.Reflection.Emit can not return MethodBase.GetParameters
+ /// for anything which is dynamic, and we need this in a number of places,
+ /// we register this information here, and use it afterwards.
+ /// </remarks>
static public bool RegisterMethod (MethodBase mb, InternalParameters ip, Type [] args)
{
- string s;
-
- s = GetSig (mb);
-
- if (method_arguments.Contains (s))
- return false;
-
- method_arguments.Add (s, args);
- method_internal_params.Add (s, ip);
+ if (args == null)
+ args = NoTypes;
+
+ method_arguments.Add (mb, args);
+ method_internal_params.Add (mb, ip);
return true;
}
-
+
static public InternalParameters LookupParametersByBuilder (MethodBase mb)
{
- string sig = GetSig (mb);
- object o = method_arguments [sig];
-
if (! (mb is ConstructorBuilder || mb is MethodBuilder))
return null;
- if (method_arguments.Contains (sig))
- return (InternalParameters) method_internal_params [sig];
+ if (method_internal_params.Contains (mb))
+ return (InternalParameters) method_internal_params [mb];
else
throw new Exception ("Argument for Method not registered" + mb);
}
/// </summary>
static public Type [] GetArgumentTypes (MethodBase mb)
{
- string sig = GetSig (mb);
- object o = method_arguments [sig];
-
- if (method_arguments.Contains (sig))
- return (Type []) method_arguments [sig];
+ if (method_arguments.Contains (mb))
+ return (Type []) method_arguments [mb];
else {
ParameterInfo [] pi = mb.GetParameters ();
int c = pi.Length;
for (int i = 0; i < c; i++)
types [i] = pi [i].ParameterType;
- method_arguments.Add (sig, types);
+ method_arguments.Add (mb, types);
return types;
}
}
// This is a workaround the fact that GetValue is not
// supported for dynamic types
// </remarks>
- static Hashtable fields;
-
- static public bool RegisterField (FieldBuilder fb, object value)
+ static Hashtable fields = new Hashtable ();
+ static public bool RegisterFieldValue (FieldBuilder fb, object value)
{
- if (fields == null)
- fields = new Hashtable ();
-
if (fields.Contains (fb))
return false;
return fields [fb];
}
+ static Hashtable fieldbuilders_to_fields = new Hashtable ();
+ static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
+ {
+ if (fieldbuilders_to_fields.Contains (fb))
+ return false;
+
+ fieldbuilders_to_fields.Add (fb, f);
+ return true;
+ }
+
+ static public FieldBase GetField (FieldInfo fb)
+ {
+ return (FieldBase) fieldbuilders_to_fields [fb];
+ }
+
+ static Hashtable events;
+
+ static public bool RegisterEvent (MyEventBuilder eb, MethodBase add, MethodBase remove)
+ {
+ if (events == null)
+ events = new Hashtable ();
+
+ if (events.Contains (eb))
+ return false;
+
+ events.Add (eb, new Pair (add, remove));
+
+ return true;
+ }
+
+ static public MethodInfo GetAddMethod (EventInfo ei)
+ {
+ if (ei is MyEventBuilder) {
+ Pair pair = (Pair) events [ei];
+
+ return (MethodInfo) pair.First;
+ } else
+ return ei.GetAddMethod ();
+ }
+
+ static public MethodInfo GetRemoveMethod (EventInfo ei)
+ {
+ if (ei is MyEventBuilder) {
+ Pair pair = (Pair) events [ei];
+
+ return (MethodInfo) pair.Second;
+ } else
+ return ei.GetAddMethod ();
+ }
static Hashtable properties;
if (properties.Contains (pb))
return false;
- properties.Add (pb, new DictionaryEntry (get, set));
+ properties.Add (pb, new Pair (get, set));
return true;
}
+ //
+ // FIXME: we need to return the accessors depending on whether
+ // they are visible or not.
+ //
static public MethodInfo [] GetAccessors (PropertyInfo pi)
{
MethodInfo [] ret;
-
+
if (pi is PropertyBuilder){
- DictionaryEntry de = (DictionaryEntry) properties [pi];
+ Pair pair = (Pair) properties [pi];
ret = new MethodInfo [2];
- ret [0] = (MethodInfo) de.Key;
- ret [1] = (MethodInfo) de.Value;
+ ret [0] = (MethodInfo) pair.First;
+ ret [1] = (MethodInfo) pair.Second;
return ret;
+ } else {
+ MethodInfo [] mi = new MethodInfo [2];
+
+ //
+ // Why this and not pi.GetAccessors?
+ // Because sometimes index 0 is the getter
+ // sometimes it is 1
+ //
+ mi [0] = pi.GetGetMethod (true);
+ mi [1] = pi.GetSetMethod (true);
+
+ return mi;
+ }
+ }
+
+ static public MethodInfo GetPropertyGetter (PropertyInfo pi)
+ {
+ if (pi is PropertyBuilder){
+ Pair de = (Pair) properties [pi];
+
+ return (MethodInfo) de.Second;
} else
- return pi.GetAccessors ();
+ return pi.GetSetMethod ();
}
- // <remarks>
- // The following is used to check if a given type implements an interface.
- // The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
- // </remarks>
+ static public MethodInfo GetPropertySetter (PropertyInfo pi)
+ {
+ if (pi is PropertyBuilder){
+ Pair de = (Pair) properties [pi];
- static Hashtable type_interface_cache;
+ return (MethodInfo) de.First;
+ } else
+ return pi.GetGetMethod ();
+ }
+ /// <summary>
+ /// Given an array of interface types, expand and eliminate repeated ocurrences
+ /// of an interface.
+ /// </summary>
+ ///
+ /// <remarks>
+ /// This expands in context like: IA; IB : IA; IC : IA, IB; the interface "IC" to
+ /// be IA, IB, IC.
+ /// </remarks>
+ public static Type [] ExpandInterfaces (Type [] base_interfaces)
+ {
+ ArrayList new_ifaces = new ArrayList ();
+
+ foreach (Type iface in base_interfaces){
+ if (!new_ifaces.Contains (iface))
+ new_ifaces.Add (iface);
+
+ Type [] implementing = TypeManager.GetInterfaces (iface);
+
+ foreach (Type imp in implementing){
+ if (!new_ifaces.Contains (imp))
+ new_ifaces.Add (imp);
+ }
+ }
+ Type [] ret = new Type [new_ifaces.Count];
+ new_ifaces.CopyTo (ret, 0);
+ return ret;
+ }
+
+ /// <summary>
+ /// This function returns the interfaces in the type `t'. Works with
+ /// both types and TypeBuilders.
+ /// </summary>
+ public static Type [] GetInterfaces (Type t)
+ {
+ //
+ // The reason for catching the Array case is that Reflection.Emit
+ // will not return a TypeBuilder for Array types of TypeBuilder types,
+ // but will still throw an exception if we try to call GetInterfaces
+ // on the type.
+ //
+ // Since the array interfaces are always constant, we return those for
+ // the System.Array
+ //
+
+ if (t.IsArray)
+ t = TypeManager.array_type;
+
+ if (t is TypeBuilder){
+ Type [] parent_ifaces;
+
+ if (t.BaseType == null)
+ parent_ifaces = NoTypes;
+ else
+ parent_ifaces = GetInterfaces (t.BaseType);
+ Type [] type_ifaces = (Type []) builder_to_ifaces [t];
+ if (type_ifaces == null)
+ type_ifaces = NoTypes;
+
+ int parent_count = parent_ifaces.Length;
+ Type [] result = new Type [parent_count + type_ifaces.Length];
+ parent_ifaces.CopyTo (result, 0);
+ type_ifaces.CopyTo (result, parent_count);
+
+ return result;
+ } else
+ return t.GetInterfaces ();
+ }
+
+ /// <remarks>
+ /// The following is used to check if a given type implements an interface.
+ /// The cache helps us reduce the expense of hitting Type.GetInterfaces everytime.
+ /// </remarks>
public static bool ImplementsInterface (Type t, Type iface)
{
- Type [] interfaces = (Type []) type_interface_cache [t];
+ Type [] interfaces;
- if (interfaces == null) {
- if (type_interface_cache.Contains (t))
- return false;
+ //
+ // FIXME OPTIMIZATION:
+ // as soon as we hit a non-TypeBuiler in the interface
+ // chain, we could return, as the `Type.GetInterfaces'
+ // will return all the interfaces implement by the type
+ // or its parents.
+ //
+ do {
+ interfaces = GetInterfaces (t);
+
+ if (interfaces != null){
+ foreach (Type i in interfaces){
+ if (i == iface)
+ return true;
+ }
+ }
- interfaces = t.GetInterfaces ();
+ t = t.BaseType;
+ } while (t != null);
+
+ return false;
+ }
+
+ // This is a custom version of Convert.ChangeType() which works
+ // with the TypeBuilder defined types when compiling corlib.
+ public static object ChangeType (object value, Type conversionType)
+ {
+ if (!(value is IConvertible))
+ throw new ArgumentException ();
+
+ IConvertible convertValue = (IConvertible) value;
+ CultureInfo ci = CultureInfo.CurrentCulture;
+ NumberFormatInfo provider = ci.NumberFormat;
+
+ //
+ // We must use Type.Equals() here since `conversionType' is
+ // the TypeBuilder created version of a system type and not
+ // the system type itself. You cannot use Type.GetTypeCode()
+ // on such a type - it'd always return TypeCode.Object.
+ //
+ if (conversionType.Equals (typeof (Boolean)))
+ return (object)(convertValue.ToBoolean (provider));
+ else if (conversionType.Equals (typeof (Byte)))
+ return (object)(convertValue.ToByte (provider));
+ else if (conversionType.Equals (typeof (Char)))
+ return (object)(convertValue.ToChar (provider));
+ else if (conversionType.Equals (typeof (DateTime)))
+ return (object)(convertValue.ToDateTime (provider));
+ else if (conversionType.Equals (typeof (Decimal)))
+ return (object)(convertValue.ToDecimal (provider));
+ else if (conversionType.Equals (typeof (Double)))
+ return (object)(convertValue.ToDouble (provider));
+ else if (conversionType.Equals (typeof (Int16)))
+ return (object)(convertValue.ToInt16 (provider));
+ else if (conversionType.Equals (typeof (Int32)))
+ return (object)(convertValue.ToInt32 (provider));
+ else if (conversionType.Equals (typeof (Int64)))
+ return (object)(convertValue.ToInt64 (provider));
+ else if (conversionType.Equals (typeof (SByte)))
+ return (object)(convertValue.ToSByte (provider));
+ else if (conversionType.Equals (typeof (Single)))
+ return (object)(convertValue.ToSingle (provider));
+ else if (conversionType.Equals (typeof (String)))
+ return (object)(convertValue.ToString (provider));
+ else if (conversionType.Equals (typeof (UInt16)))
+ return (object)(convertValue.ToUInt16 (provider));
+ else if (conversionType.Equals (typeof (UInt32)))
+ return (object)(convertValue.ToUInt32 (provider));
+ else if (conversionType.Equals (typeof (UInt64)))
+ return (object)(convertValue.ToUInt64 (provider));
+ else if (conversionType.Equals (typeof (Object)))
+ return (object)(value);
+ else
+ throw new InvalidCastException ();
+ }
- type_interface_cache [t] = interfaces;
+ //
+ // This is needed, because enumerations from assemblies
+ // do not report their underlyingtype, but they report
+ // themselves
+ //
+ public static Type EnumToUnderlying (Type t)
+ {
+ if (t == TypeManager.enum_type)
+ return t;
+
+ t = t.UnderlyingSystemType;
+ if (!TypeManager.IsEnumType (t))
+ return t;
+
+ if (t is TypeBuilder) {
+ // slow path needed to compile corlib
+ if (t == TypeManager.bool_type ||
+ t == TypeManager.byte_type ||
+ t == TypeManager.sbyte_type ||
+ t == TypeManager.char_type ||
+ t == TypeManager.short_type ||
+ t == TypeManager.ushort_type ||
+ t == TypeManager.int32_type ||
+ t == TypeManager.uint32_type ||
+ t == TypeManager.int64_type ||
+ t == TypeManager.uint64_type)
+ return t;
+ throw new Exception ("Unhandled typecode in enum " + " from " + t.AssemblyQualifiedName);
+ }
+ TypeCode tc = Type.GetTypeCode (t);
+
+ switch (tc){
+ case TypeCode.Boolean:
+ return TypeManager.bool_type;
+ case TypeCode.Byte:
+ return TypeManager.byte_type;
+ case TypeCode.SByte:
+ return TypeManager.sbyte_type;
+ case TypeCode.Char:
+ return TypeManager.char_type;
+ case TypeCode.Int16:
+ return TypeManager.short_type;
+ case TypeCode.UInt16:
+ return TypeManager.ushort_type;
+ case TypeCode.Int32:
+ return TypeManager.int32_type;
+ case TypeCode.UInt32:
+ return TypeManager.uint32_type;
+ case TypeCode.Int64:
+ return TypeManager.int64_type;
+ case TypeCode.UInt64:
+ return TypeManager.uint64_type;
}
+ throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
+ }
- if (interfaces == null)
- return false;
+ //
+ // When compiling corlib and called with one of the core types, return
+ // the corresponding typebuilder for that type.
+ //
+ public static Type TypeToCoreType (Type t)
+ {
+ if (RootContext.StdLib || (t is TypeBuilder))
+ return t;
- for (int i = interfaces.Length; i > 0; ) {
- i--;
- if (interfaces [i] == iface)
- return true;
+ TypeCode tc = Type.GetTypeCode (t);
+
+ switch (tc){
+ case TypeCode.Boolean:
+ return TypeManager.bool_type;
+ case TypeCode.Byte:
+ return TypeManager.byte_type;
+ case TypeCode.SByte:
+ return TypeManager.sbyte_type;
+ case TypeCode.Char:
+ return TypeManager.char_type;
+ case TypeCode.Int16:
+ return TypeManager.short_type;
+ case TypeCode.UInt16:
+ return TypeManager.ushort_type;
+ case TypeCode.Int32:
+ return TypeManager.int32_type;
+ case TypeCode.UInt32:
+ return TypeManager.uint32_type;
+ case TypeCode.Int64:
+ return TypeManager.int64_type;
+ case TypeCode.UInt64:
+ return TypeManager.uint64_type;
+ case TypeCode.String:
+ return TypeManager.string_type;
+ default:
+ return t;
}
+ }
- return false;
+ /// <summary>
+ /// Utility function that can be used to probe whether a type
+ /// is managed or not.
+ /// </summary>
+ public static bool VerifyUnManaged (Type t, Location loc)
+ {
+ if (t.IsValueType || t.IsPointer){
+ //
+ // FIXME: this is more complex, we actually need to
+ // make sure that the type does not contain any
+ // classes itself
+ //
+ return true;
+ }
+
+ if (!RootContext.StdLib && (t == TypeManager.decimal_type))
+ // We need this explicit check here to make it work when
+ // compiling corlib.
+ return true;
+
+ Report.Error (
+ 208, loc,
+ "Cannot take the address or size of a variable of a managed type ('" +
+ CSharpName (t) + "')");
+ return false;
}
-
/// <summary>
/// Returns the name of the indexer in a given type.
/// </summary>
public static string IndexerPropertyName (Type t)
{
+ if (t is TypeBuilder) {
+ TypeContainer tc = (TypeContainer) builder_to_container [t];
+
+ //
+ // FIXME: Temporary hack, until we deploy the IndexerName
+ // property code (and attributes) in the interface code.
+ //
+ if (tc == null){
+ return "Item";
+ }
+
+ return tc.IndexerName;
+ }
+
+ System.Attribute attr = System.Attribute.GetCustomAttribute (
+ t, TypeManager.default_member_type);
+ if (attr != null){
+ DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
+ return dma.MemberName;
+ }
+
+ return "Item";
+ }
+
+ public static void MakePinned (LocalBuilder builder)
+ {
//
- // FIXME: Replace with something that works around S.R.E failure
+ // FIXME: Flag the "LocalBuilder" type as being
+ // pinned. Figure out API.
//
-#if FIXME
- System.Attribute attr;
+ }
+
- attr = System.Attribute.GetCustomAttribute (t, TypeManager.default_member_type);
+ //
+ // Returns whether the array of memberinfos contains the given method
+ //
+ static bool ArrayContainsMethod (MemberInfo [] array, MethodBase new_method)
+ {
+ Type [] new_args = TypeManager.GetArgumentTypes (new_method);
- if (attr != null)
- {
- DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
-
- return dma.MemberName;
+ foreach (MethodBase method in array){
+ if (method.Name != new_method.Name)
+ continue;
+
+ Type [] old_args = TypeManager.GetArgumentTypes (method);
+ int old_count = old_args.Length;
+ int i;
+
+ if (new_args.Length != old_count)
+ continue;
+
+ for (i = 0; i < old_count; i++){
+ if (old_args [i] != new_args [i])
+ break;
}
-#endif
- return "Item";
+ if (i != old_count)
+ continue;
+
+ if (!(method is MethodInfo && new_method is MethodInfo))
+ return true;
+
+ if (((MethodInfo) method).ReturnType == ((MethodInfo) new_method).ReturnType)
+ return true;
+ }
+ return false;
+ }
+
+ //
+ // We copy methods from `new_members' into `target_list' if the signature
+ // for the method from in the new list does not exist in the target_list
+ //
+ // The name is assumed to be the same.
+ //
+ public static ArrayList CopyNewMethods (ArrayList target_list, MemberInfo [] new_members)
+ {
+ if (target_list == null){
+ target_list = new ArrayList ();
+
+ foreach (MemberInfo mi in new_members){
+ if (mi is MethodBase)
+ target_list.Add (mi);
+ }
+ return target_list;
+ }
+
+ MemberInfo [] target_array = new MemberInfo [target_list.Count];
+ target_list.CopyTo (target_array, 0);
+
+ foreach (MemberInfo mi in new_members){
+ MethodBase new_method = (MethodBase) mi;
+
+ if (!ArrayContainsMethod (target_array, new_method))
+ target_list.Add (new_method);
+ }
+ return target_list;
+ }
+
+ [Flags]
+ public enum MethodFlags {
+ IsObsolete = 1,
+ ShouldIgnore = 2
+ }
+
+ static public MethodFlags GetMethodFlags (MethodBase mb)
+ {
+ MethodFlags flags = 0;
+
+ if (mb.DeclaringType is TypeBuilder){
+ //
+ // FIXME: Support lookups of Obsolete and ConditionalAttribute
+ // on MethodBuilders.
+ //
+ return 0;
+ }
+
+ object [] attrs = mb.GetCustomAttributes (false);
+ foreach (object ta in attrs){
+ if (!(ta is System.Attribute)){
+ Console.WriteLine ("Unknown type in GetMethodFlags: " + ta);
+ continue;
+ }
+ System.Attribute a = (System.Attribute) ta;
+ if (a.TypeId == TypeManager.obsolete_attribute_type){
+ flags |= MethodFlags.IsObsolete;
+ continue;
+ }
+
+ //
+ // Skip over conditional code.
+ //
+ if (a.TypeId == TypeManager.conditional_attribute_type){
+ ConditionalAttribute ca = (ConditionalAttribute) a;
+
+ if (RootContext.AllDefines [ca.ConditionString] == null)
+ flags |= MethodFlags.ShouldIgnore;
+ }
+ }
+
+ return flags;
}
+
+#region MemberLookup implementation
+
+ //
+ // Name of the member
+ //
+ static string closure_name;
+
+ //
+ // Whether we allow private members in the result (since FindMembers
+ // uses NonPublic for both protected and private), we need to distinguish.
+ //
+ static bool closure_private_ok;
+
+ //
+ // Who is invoking us and which type is being queried currently.
+ //
+ static Type closure_invocation_type;
+ static Type closure_queried_type;
+
+ //
+ // The assembly that defines the type is that is calling us
+ //
+ static Assembly closure_invocation_assembly;
+
+ //
+ // This filter filters by name + whether it is ok to include private
+ // members in the search
+ //
+ static internal bool FilterWithClosure (MemberInfo m, object filter_criteria)
+ {
+ //
+ // Hack: we know that the filter criteria will always be in the `closure'
+ // fields.
+ //
+ if (m.Name != closure_name)
+ return false;
+
+ //
+ // Ugly: we need to find out the type of `m', and depending
+ // on this, tell whether we accept or not
+ //
+ if (m is MethodBase){
+ MethodBase mb = (MethodBase) m;
+ MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
+
+ if (ma == MethodAttributes.Private)
+ return closure_private_ok;
+
+ //
+ // FamAndAssem requires that we not only derivate, but we are on the
+ // same assembly.
+ //
+ if (ma == MethodAttributes.FamANDAssem){
+ if (closure_invocation_assembly != mb.DeclaringType.Assembly)
+ return false;
+ }
+
+ // FamORAssem, Family and Public:
+ return true;
+ }
+
+ if (m is FieldInfo){
+ FieldInfo fi = (FieldInfo) m;
+ FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
+
+ if (fa == FieldAttributes.Private)
+ return closure_private_ok;
+
+ //
+ // FamAndAssem requires that we not only derivate, but we are on the
+ // same assembly.
+ //
+ if (fa == FieldAttributes.FamANDAssem){
+ if (closure_invocation_assembly != fi.DeclaringType.Assembly)
+ return false;
+ }
+ // FamORAssem, Family and Public:
+ return true;
+ }
+
+ //
+ // EventInfos and PropertyInfos, return true
+ //
+ return true;
+ }
+
+ static MemberFilter FilterWithClosure_delegate = new MemberFilter (FilterWithClosure);
+
+ //
+ // Looks up a member called `name' in the `queried_type'. This lookup
+ // is done by code that is contained in the definition for `invocation_type'.
+ //
+ // The binding flags are `bf' and the kind of members being looked up are `mt'
+ //
+ // Returns an array of a single element for everything but Methods/Constructors
+ // that might return multiple matches.
+ //
+ public static MemberInfo [] MemberLookup (Type invocation_type, Type queried_type,
+ MemberTypes mt, BindingFlags original_bf, string name)
+ {
+ BindingFlags bf = original_bf;
+
+ ArrayList method_list = null;
+ Type current_type = queried_type;
+ bool searching = (original_bf & BindingFlags.DeclaredOnly) == 0;
+ bool private_ok;
+ bool always_ok_flag = false;
+
+ closure_name = name;
+ closure_invocation_type = invocation_type;
+ closure_invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
+
+ //
+ // If we are a nested class, we always have access to our container
+ // type names
+ //
+ if (invocation_type != null){
+ string invocation_name = invocation_type.FullName;
+ if (invocation_name.IndexOf ('+') != -1){
+ string container = queried_type.FullName + "+";
+ int container_length = container.Length;
+
+ if (invocation_name.Length > container_length){
+ string shared = invocation_name.Substring (0, container_length);
+
+ if (shared == container)
+ always_ok_flag = true;
+ }
+ }
+ }
+
+ do {
+ MemberInfo [] mi;
+
+ //
+ // `NonPublic' is lame, because it includes both protected and
+ // private methods, so we need to control this behavior by
+ // explicitly tracking if a private method is ok or not.
+ //
+ // The possible cases are:
+ // public, private and protected (internal does not come into the
+ // equation)
+ //
+ if (invocation_type != null){
+ if (invocation_type == current_type){
+ private_ok = true;
+ } else
+ private_ok = always_ok_flag;
+
+ if (private_ok || invocation_type.IsSubclassOf (current_type))
+ bf = original_bf | BindingFlags.NonPublic;
+ } else {
+ private_ok = false;
+ bf = original_bf & ~BindingFlags.NonPublic;
+ }
+
+ closure_private_ok = private_ok;
+ closure_queried_type = current_type;
+
+ mi = TypeManager.FindMembers (
+ current_type, mt, bf | BindingFlags.DeclaredOnly,
+ FilterWithClosure_delegate, name);
+
+ if (current_type == TypeManager.object_type)
+ searching = false;
+ else {
+ current_type = current_type.BaseType;
+
+ //
+ // This happens with interfaces, they have a null
+ // basetype. Look members up in the Object class.
+ //
+ if (current_type == null)
+ current_type = TypeManager.object_type;
+ }
+
+ if (mi == null)
+ continue;
+
+ int count = mi.Length;
+
+ if (count == 0)
+ continue;
+
+ //
+ // Events and types are returned by both `static' and `instance'
+ // searches, which means that our above FindMembers will
+ // return two copies of the same.
+ //
+ if (count == 1 && !(mi [0] is MethodBase)){
+ return mi;
+ }
+
+ //
+ // Multiple properties: we query those just to find out the indexer
+ // name
+ //
+ if (mi [0] is PropertyInfo)
+ return mi;
+
+ //
+ // We found methods, turn the search into "method scan"
+ // mode.
+ //
+
+ method_list = CopyNewMethods (method_list, mi);
+ mt &= (MemberTypes.Method | MemberTypes.Constructor);
+ } while (searching);
+
+ if (method_list != null && method_list.Count > 0)
+ return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
+
+ //
+ // Interfaces do not list members they inherit, so we have to
+ // scan those.
+ //
+ if (!queried_type.IsInterface)
+ return null;
+
+ if (queried_type.IsArray)
+ queried_type = TypeManager.array_type;
+
+ Type [] ifaces = GetInterfaces (queried_type);
+ if (ifaces == null)
+ return null;
+
+ foreach (Type itype in ifaces){
+ MemberInfo [] x;
+
+ x = MemberLookup (null, itype, mt, bf, name);
+ if (x != null)
+ return x;
+ }
+
+ return null;
+ }
+#endregion
+
}
}
projects / mono.git / blobdiff