//
//
+//
+// We will eventually remove the SIMPLE_SPEEDUP, and should never change
+// the behavior of the compilation. This can be removed if we rework
+// the code to get a list of namespaces available.
+//
+#define SIMPLE_SPEEDUP
+
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 marshal_as_attr_type;
static public Type param_array_type;
static public Type void_ptr_type;
+ static public Type indexer_name_type;
+ static public Type exception_type;
+ static public object obsolete_attribute_type;
+ static public object conditional_attribute_type;
+ //
+ // An empty array of types
+ //
static public Type [] NoTypes;
+
+
+ //
+ // Expressions representing the internal types. Used during declaration
+ // definition.
+ //
+ static public Expression system_object_expr, system_string_expr;
+ static public Expression system_boolean_expr, system_decimal_expr;
+ static public Expression system_single_expr, system_double_expr;
+ static public Expression system_sbyte_expr, system_byte_expr;
+ static public Expression system_int16_expr, system_uint16_expr;
+ static public Expression system_int32_expr, system_uint32_expr;
+ static public Expression system_int64_expr, system_uint64_expr;
+ static public Expression system_char_expr, system_void_expr;
+ static public Expression system_asynccallback_expr;
+ static public Expression system_iasyncresult_expr;
+
+ //
+ // This is only used when compiling corlib
+ //
+ static public Type system_int32_type;
+ static public Type system_array_type;
+ static public Type system_type_type;
+ static public Type system_assemblybuilder_type;
+ static public MethodInfo system_int_array_get_length;
+ static public MethodInfo system_int_array_get_rank;
+ static public MethodInfo system_object_array_clone;
+ static public MethodInfo system_int_array_get_length_int;
+ static public MethodInfo system_int_array_get_lower_bound_int;
+ static public MethodInfo system_int_array_get_upper_bound_int;
+ static public MethodInfo system_void_array_copyto_array_int;
+ static public MethodInfo system_void_set_corlib_type_builders;
+
//
// Internal, not really used outside
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;
+ static public MethodInfo int_array_get_rank;
+ static public MethodInfo object_array_clone;
+ static public MethodInfo int_array_get_length_int;
+ static public MethodInfo int_array_get_lower_bound_int;
+ static public MethodInfo int_array_get_upper_bound_int;
+ static public MethodInfo void_array_copyto_array_int;
//
// 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
// </remarks>
static ArrayList user_types;
+ static PtrHashtable builder_to_declspace;
+
// <remarks>
- // Keeps a mapping between TypeBuilders and their TypeContainers
+ // Tracks the interfaces implemented by typebuilders. We only
+ // enter those who do implement or or more interfaces
// </remarks>
- static PtrHashtable builder_to_container;
+ static PtrHashtable builder_to_ifaces;
// <remarks>
// Maps MethodBase.RuntimeTypeHandle to a Type array that contains
// </remarks>
static Hashtable method_arguments;
+ // <remarks>
+ // Maps PropertyBuilder to a Type array that contains
+ // the arguments to the indexer
+ // </remarks>
+ static Hashtable indexer_arguments;
+
// <remarks>
// Maybe `method_arguments' should be replaced and only
// method_internal_params should be kept?
// <remarks>
static Hashtable method_internal_params;
- static PtrHashtable builder_to_interface;
-
- // <remarks>
- // Keeps track of delegate types
- // </remarks>
-
- static Hashtable builder_to_delegate;
-
// <remarks>
- // Keeps track of enum types
+ // Keeps track of attribute types
// </remarks>
- static Hashtable builder_to_enum;
+ static Hashtable builder_to_attr;
// <remarks>
- // Keeps track of attribute types
+ // Keeps track of methods
// </remarks>
- static Hashtable builder_to_attr;
+ static Hashtable builder_to_method;
struct Signature {
public string name;
// A delegate that points to the filter above.
static MemberFilter signature_filter;
+ //
+ // These are expressions that represent some of the internal data types, used
+ // elsewhere
+ //
+ static void InitExpressionTypes ()
+ {
+ system_object_expr = new TypeLookupExpression ("System.Object");
+ system_string_expr = new TypeLookupExpression ("System.String");
+ system_boolean_expr = new TypeLookupExpression ("System.Boolean");
+ system_decimal_expr = new TypeLookupExpression ("System.Decimal");
+ system_single_expr = new TypeLookupExpression ("System.Single");
+ system_double_expr = new TypeLookupExpression ("System.Double");
+ system_sbyte_expr = new TypeLookupExpression ("System.SByte");
+ system_byte_expr = new TypeLookupExpression ("System.Byte");
+ system_int16_expr = new TypeLookupExpression ("System.Int16");
+ system_uint16_expr = new TypeLookupExpression ("System.UInt16");
+ system_int32_expr = new TypeLookupExpression ("System.Int32");
+ system_uint32_expr = new TypeLookupExpression ("System.UInt32");
+ system_int64_expr = new TypeLookupExpression ("System.Int64");
+ system_uint64_expr = new TypeLookupExpression ("System.UInt64");
+ system_char_expr = new TypeLookupExpression ("System.Char");
+ system_void_expr = new TypeLookupExpression ("System.Void");
+ system_asynccallback_expr = new TypeLookupExpression ("System.AsyncCallback");
+ system_iasyncresult_expr = new TypeLookupExpression ("System.IAsyncResult");
+ }
+
static TypeManager ()
{
assemblies = new Assembly [0];
types = new Hashtable ();
typecontainers = new Hashtable ();
- builder_to_interface = new PtrHashtable ();
- builder_to_delegate = new PtrHashtable ();
- builder_to_enum = new PtrHashtable ();
+ builder_to_declspace = new PtrHashtable ();
builder_to_attr = new PtrHashtable ();
+ builder_to_method = new PtrHashtable ();
method_arguments = new PtrHashtable ();
method_internal_params = new PtrHashtable ();
- builder_to_container = new PtrHashtable ();
+ indexer_arguments = new PtrHashtable ();
+ builder_to_ifaces = new PtrHashtable ();
NoTypes = new Type [0];
signature_filter = new MemberFilter (SignatureFilter);
+ InitExpressionTypes ();
}
- public static void AddUserType (string name, TypeBuilder t)
+ public static void AddUserType (string name, TypeBuilder t, Type [] ifaces)
{
try {
types.Add (name, t);
- user_types.Add (t);
} catch {
- Report.Error (-17, "The type `" + name + "' has already been defined");
+ Type prev = (Type) types [name];
+ TypeContainer tc = builder_to_declspace [prev] as TypeContainer;
+
+ if (tc != null){
+ //
+ // This probably never happens, as we catch this before
+ //
+ Report.Error (-17, "The type `" + name + "' has already been defined.");
+ return;
+ }
+
+ tc = builder_to_declspace [t] as TypeContainer;
+
+ 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;
+ }
+
+ //
+ // This entry point is used by types that we define under the covers
+ //
+ public static void RegisterBuilder (TypeBuilder tb, Type [] ifaces)
+ {
+ if (ifaces != null)
+ builder_to_ifaces [tb] = ifaces;
}
- public static 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 (t, tc);
+ builder_to_declspace.Add (t, tc);
typecontainers.Add (name, tc);
+ AddUserType (name, t, ifaces);
}
public static void AddDelegateType (string name, TypeBuilder t, Delegate del)
{
types.Add (name, t);
- builder_to_delegate.Add (t, del);
+ builder_to_declspace.Add (t, del);
}
public static void AddEnumType (string name, TypeBuilder t, Enum en)
{
types.Add (name, t);
- builder_to_enum.Add (t, en);
+ builder_to_declspace.Add (t, en);
}
- public static 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 (t, i);
+ AddUserType (name, t, ifaces);
+ builder_to_declspace.Add (t, i);
+ }
+
+ public static void AddMethod (MethodBuilder builder, MethodData method)
+ {
+ builder_to_method.Add (builder, method);
}
public static void RegisterAttrType (Type t, TypeContainer tc)
{
builder_to_attr.Add (t, tc);
}
-
+
/// <summary>
/// Returns the TypeContainer whose Type is `t' or null if there is no
/// TypeContainer for `t' (ie, the Type comes from a library)
/// </summary>
public static TypeContainer LookupTypeContainer (Type t)
{
- return (TypeContainer) builder_to_container [t];
+ return builder_to_declspace [t] as TypeContainer;
+ }
+
+ public static IMemberContainer LookupMemberContainer (Type t)
+ {
+ if (t is TypeBuilder) {
+ IMemberContainer container = builder_to_declspace [t] as IMemberContainer;
+ if (container != null)
+ return container;
+ }
+
+ return TypeHandle.GetTypeHandle (t);
}
public static Interface LookupInterface (Type t)
{
- return (Interface) builder_to_interface [t];
+ return builder_to_declspace [t] as Interface;
}
public static Delegate LookupDelegate (Type t)
{
- return (Delegate) builder_to_delegate [t];
+ return builder_to_declspace [t] as Delegate;
}
public static Enum LookupEnum (Type t)
{
- return (Enum) builder_to_enum [t];
+ return builder_to_declspace [t] as Enum;
}
public static TypeContainer LookupAttr (Type t)
modules = n;
}
+ //
+ // Low-level lookup, cache-less
+ //
+ static Type LookupTypeReflection (string name)
+ {
+ Type t;
+
+ foreach (Assembly a in assemblies){
+ t = a.GetType (name);
+ if (t != null)
+ return t;
+ }
+
+ foreach (ModuleBuilder mb in modules) {
+ t = mb.GetType (name);
+ if (t != null){
+ return t;
+ }
+ }
+ return null;
+ }
+
+ static Hashtable negative_hits = new Hashtable ();
+
+ //
+ // This function is used when you want to avoid the lookups, and want to go
+ // directly to the source. This will use the cache.
+ //
+ // Notice that bypassing the cache is bad, because on Microsoft.NET runtime
+ // GetType ("DynamicType[]") != GetType ("DynamicType[]"), and there is no
+ // way to test things other than doing a fullname compare
+ //
+ public static Type LookupTypeDirect (string name)
+ {
+ Type t = (Type) types [name];
+ if (t != null)
+ return t;
+
+ t = LookupTypeReflection (name);
+ if (t == null)
+ return null;
+
+ types [name] = t;
+ return t;
+ }
+
/// <summary>
- /// Returns the Type associated with @name
+ /// Returns the Type associated with @name, takes care of the fact that
+ /// reflection expects nested types to be separated from the main type
+ /// with a "+" instead of a "."
/// </summary>
public static Type LookupType (string name)
{
if (t != null)
return t;
- foreach (Assembly a in assemblies){
- t = a.GetType (name);
- if (t != null){
- types [name] = t;
+#if SIMPLE_SPEEDUP
+ if (negative_hits.Contains (name))
+ return null;
+#endif
+
+ //
+ // Optimization: ComposedCast will work with an existing type, and might already have the
+ // full name of the type, so the full system lookup can probably be avoided.
+ //
+
+ string [] elements = name.Split ('.');
+ int count = elements.Length;
+ for (int n = 1; n <= count; n++){
+ string top_level_type = String.Join (".", elements, 0, n);
+
+ t = (Type) types [top_level_type];
+ if (t == null){
+ t = LookupTypeReflection (top_level_type);
+ if (t == null)
+ continue;
+ }
+
+ if (count == n){
+ types [name] = t;
return t;
+ }
+
+ //
+ // We know that System.Object does not have children, and since its the parent of
+ // all the objects, it always gets probbed for inner classes.
+ //
+ if (top_level_type == "System.Object")
+ return null;
+
+ string newt = top_level_type + "+" + String.Join ("+", elements, n, count - n);
+ t = LookupTypeDirect (newt);
+ if (t != null)
+ types [newt] = t;
+ return t;
+ }
+
+#if SIMPLE_SPEEDUP
+ negative_hits [name] = true;
+#endif
+ return null;
+ }
+
+ //
+ // Returns a list of all namespaces in the assemblies and types loaded.
+ //
+ public static Hashtable GetNamespaces ()
+ {
+ Hashtable namespaces = new Hashtable ();
+
+ foreach (Assembly a in assemblies){
+ foreach (Type t in a.GetTypes ()){
+ string ns = t.Namespace;
+
+ if (namespaces.Contains (ns))
+ continue;
+ namespaces [ns] = ns;
}
}
- foreach (ModuleBuilder mb in modules) {
- t = mb.GetType (name);
- if (t != null) {
- types [name] = t;
- return t;
+ foreach (ModuleBuilder mb in modules){
+ foreach (Type t in mb.GetTypes ()){
+ string ns = t.Namespace;
+
+ if (namespaces.Contains (ns))
+ continue;
+ namespaces [ns] = ns;
}
}
-
- return null;
+ Console.WriteLine ("Namespaces: " + namespaces.Count);
+ return namespaces;
}
+ public static void GetAllTypes ()
+ {
+ Hashtable namespaces = new Hashtable ();
+
+ foreach (Assembly a in assemblies){
+ foreach (Type t in a.GetTypes ()){
+ }
+ }
+
+ foreach (ModuleBuilder mb in modules){
+ foreach (Type t in mb.GetTypes ()){
+ }
+ }
+ }
+
/// <summary>
/// Returns the C# name of a type if possible, or the full type name otherwise
/// </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 if (t == void_type)
- return "void";
- 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>
static MethodInfo GetMethod (Type t, string name, Type [] args)
{
- MemberInfo [] mi;
+ MemberList list;
Signature sig;
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)){
+ list = FindMembers (t, MemberTypes.Method, instance_and_static | BindingFlags.Public,
+ signature_filter, sig);
+ if (list.Count == 0) {
Report.Error (-19, "Can not find the core function `" + name + "'");
return null;
}
- return (MethodInfo) mi [0];
+ MethodInfo mi = list [0] as MethodInfo;
+ if (mi == null) {
+ Report.Error (-19, "Can not find the core function `" + name + "'");
+ return null;
+ }
+
+ return mi;
}
/// <summary>
/// </summary>
static ConstructorInfo GetConstructor (Type t, Type [] args)
{
- MemberInfo [] mi;
+ MemberList list;
Signature sig;
sig.name = ".ctor";
sig.args = args;
- mi = FindMembers (t, MemberTypes.Constructor,
- instance_and_static | BindingFlags.Public, signature_filter, sig);
- if (mi == null || mi.Length == 0 || !(mi [0] is ConstructorInfo)){
+ list = FindMembers (t, MemberTypes.Constructor,
+ instance_and_static | BindingFlags.Public | BindingFlags.DeclaredOnly,
+ signature_filter, sig);
+ if (list.Count == 0){
+ Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
+ return null;
+ }
+
+ ConstructorInfo ci = list [0] as ConstructorInfo;
+ if (ci == null){
Report.Error (-19, "Can not find the core constructor for type `" + t.Name + "'");
return null;
}
- return (ConstructorInfo) mi [0];
+ return ci;
+ }
+
+ public static void InitEnumUnderlyingTypes ()
+ {
+
+ 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>
{
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");
char_ptr_type = CoreLookupType ("System.Char*");
- short_type = CoreLookupType ("System.Int16");
- ushort_type = CoreLookupType ("System.UInt16");
decimal_type = CoreLookupType ("System.Decimal");
bool_type = CoreLookupType ("System.Boolean");
enum_type = CoreLookupType ("System.Enum");
void_ptr_type = CoreLookupType ("System.Void*");
+ indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
+
+ exception_type = CoreLookupType ("System.Exception");
+
+ //
+ // Attribute types
+ //
+ obsolete_attribute_type = CoreLookupType ("System.ObsoleteAttribute");
+ conditional_attribute_type = CoreLookupType ("System.Diagnostics.ConditionalAttribute");
+
+ //
+ // When compiling corlib, store the "real" types here.
+ //
+ if (!RootContext.StdLib) {
+ system_int32_type = typeof (System.Int32);
+ system_array_type = typeof (System.Array);
+ system_type_type = typeof (System.Type);
+ system_assemblybuilder_type = typeof (System.Reflection.Emit.AssemblyBuilder);
+
+ Type [] void_arg = { };
+ system_int_array_get_length = GetMethod (
+ system_array_type, "get_Length", void_arg);
+ system_int_array_get_rank = GetMethod (
+ system_array_type, "get_Rank", void_arg);
+ system_object_array_clone = GetMethod (
+ system_array_type, "Clone", void_arg);
+
+ Type [] system_int_arg = { system_int32_type };
+ system_int_array_get_length_int = GetMethod (
+ system_array_type, "GetLength", system_int_arg);
+ system_int_array_get_upper_bound_int = GetMethod (
+ system_array_type, "GetUpperBound", system_int_arg);
+ system_int_array_get_lower_bound_int = GetMethod (
+ system_array_type, "GetLowerBound", system_int_arg);
+
+ Type [] system_array_int_arg = { system_array_type, system_int32_type };
+ system_void_array_copyto_array_int = GetMethod (
+ system_array_type, "CopyTo", system_array_int_arg);
+
+ Type [] system_type_type_arg = { system_type_type, system_type_type, system_type_type };
+
+ try {
+ system_void_set_corlib_type_builders = GetMethod (
+ system_assemblybuilder_type, "SetCorlibTypeBuilders",
+ system_type_type_arg);
+
+ object[] args = new object [3];
+ args [0] = object_type;
+ args [1] = value_type;
+ args [2] = enum_type;
+
+ system_void_set_corlib_type_builders.Invoke (CodeGen.AssemblyBuilder, args);
+ } catch {
+ Console.WriteLine ("Corlib compilation is not supported in Microsoft.NET due to bugs in it");
+ }
+ }
}
//
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);
+ int_array_get_rank = GetMethod (
+ array_type, "get_Rank", void_arg);
+
+ //
+ // Int32 arguments
+ //
+ Type [] int_arg = { int32_type };
+ int_array_get_length_int = GetMethod (
+ array_type, "GetLength", int_arg);
+ int_array_get_upper_bound_int = GetMethod (
+ array_type, "GetUpperBound", int_arg);
+ int_array_get_lower_bound_int = GetMethod (
+ array_type, "GetLowerBound", int_arg);
+
+ //
+ // System.Array methods
+ //
+ object_array_clone = GetMethod (
+ array_type, "Clone", void_arg);
+ Type [] array_int_arg = { array_type, int32_type };
+ void_array_copyto_array_int = GetMethod (
+ array_type, "CopyTo", array_int_arg);
//
// object arguments
//
// Array functions
//
- Type [] int_arg = { int32_type };
int_getlength_int = GetMethod (
array_type, "GetLength", int_arg);
//
cons_param_array_attribute = GetConstructor (
param_array_type, void_arg);
+
+ unverifiable_code_ctor = GetConstructor (
+ unverifiable_code_type, void_arg);
}
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)
+ static Hashtable type_hash = new Hashtable ();
+
+ /// <remarks>
+ /// This is the "old", non-cache based FindMembers() function. We cannot use
+ /// the cache here because there is no member name argument.
+ /// </remarks>
+ public static MemberList FindMembers (Type t, MemberTypes mt, BindingFlags bf,
+ MemberFilter filter, object criteria)
{
+ DeclSpace decl = (DeclSpace) builder_to_declspace [t];
+
+ //
+ // `builder_to_declspace' contains all dynamic types.
+ //
+ if (decl != null) {
+ MemberList list;
+ Timer.StartTimer (TimerType.FindMembers);
+ list = decl.FindMembers (mt, bf, filter, criteria);
+ Timer.StopTimer (TimerType.FindMembers);
+ return list;
+ }
+
//
// 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)){
- //
- // 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);
- MemberInfo [] s_members = t.FindMembers (
- mt, bf & ~BindingFlags.Instance, filter, criteria);
+ return new MemberList (TypeManager.array_type.FindMembers (mt, bf, filter, criteria));
- int i_len = i_members.Length;
- int s_len = s_members.Length;
- if (i_len > 0 || s_len > 0){
- MemberInfo [] both = new MemberInfo [i_len + s_len];
+ //
+ // 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 new MemberList (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)
+ return new MemberList (i_members, s_members);
+ else {
+ if (i_len > 0)
+ return new MemberList (i_members);
+ else
+ return new MemberList (s_members);
+ }
+ }
- i_members.CopyTo (both, 0);
- s_members.CopyTo (both, i_len);
+ return new MemberList (t.FindMembers (mt, bf, filter, criteria));
+ }
- return both;
- } else
- return i_members;
- }
- return t.FindMembers (mt, bf, filter, criteria);
+
+ /// <summary>
+ /// This method is only called from within MemberLookup. It tries to use the member
+ /// cache if possible and falls back to the normal FindMembers if not. The `used_cache'
+ /// flag tells the caller whether we used the cache or not. If we used the cache, then
+ /// our return value will already contain all inherited members and the caller don't need
+ /// to check base classes and interfaces anymore.
+ /// </summary>
+ private static MemberList MemberLookup_FindMembers (Type t, MemberTypes mt, BindingFlags bf,
+ string name, out bool used_cache)
+ {
+ //
+ // 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)) {
+ used_cache = true;
+ return TypeHandle.ArrayType.MemberCache.FindMembers (
+ mt, bf, name, FilterWithClosure_delegate, null);
}
//
- // 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
+ // If this is a dynamic type, it's always in the `builder_to_declspace' hash table
+ // and we can ask the DeclSpace for the MemberCache.
//
- Enum e = (Enum) builder_to_enum [t];
+ if (t is TypeBuilder) {
+ DeclSpace decl = (DeclSpace) builder_to_declspace [t];
+ MemberCache cache = decl.MemberCache;
- if (e != null)
- return e.FindMembers (mt, bf, filter, criteria);
-
- Delegate del = (Delegate) builder_to_delegate [t];
+ //
+ // If this DeclSpace has a MemberCache, use it.
+ //
- if (del != null)
- return del.FindMembers (mt, bf, filter, criteria);
+ if (cache != null) {
+ used_cache = true;
+ return cache.FindMembers (
+ mt, bf, name, FilterWithClosure_delegate, null);
+ }
- Interface iface = (Interface) builder_to_interface [t];
+ // If there is no MemberCache, we need to use the "normal" FindMembers.
- if (iface != null)
- return iface.FindMembers (mt, bf, filter, criteria);
-
- TypeContainer tc = (TypeContainer) builder_to_container [t];
+ MemberList list;
+ Timer.StartTimer (TimerType.FindMembers);
+ list = decl.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
+ FilterWithClosure_delegate, name);
+ Timer.StopTimer (TimerType.FindMembers);
+ used_cache = false;
+ return list;
+ }
- if (tc != null)
- return tc.FindMembers (mt, bf, filter, criteria);
+ //
+ // This call will always succeed. There is exactly one TypeHandle instance per
+ // type, TypeHandle.GetTypeHandle() will either return it or create a new one
+ // if it didn't already exist.
+ //
+ TypeHandle handle = TypeHandle.GetTypeHandle (t);
- return null;
+ used_cache = true;
+ return handle.MemberCache.FindMembers (mt, bf, name, FilterWithClosure_delegate, null);
}
public static bool IsBuiltinType (Type t)
if (t == object_type || t == string_type || t == int32_type || t == uint32_type ||
t == int64_type || t == uint64_type || t == float_type || t == double_type ||
t == char_type || t == short_type || t == decimal_type || t == bool_type ||
- t == sbyte_type || t == byte_type || t == ushort_type)
+ t == sbyte_type || t == byte_type || t == ushort_type || t == void_type)
return true;
else
return false;
else
return false;
}
-
- public static bool IsInterfaceType (Type t)
+
+ //
+ // Whether a type is unmanaged. This is used by the unsafe code (25.2)
+ //
+ public static bool IsUnmanagedType (Type t)
{
- Interface iface = (Interface) builder_to_interface [t];
+ if (IsBuiltinType (t) && t != TypeManager.string_type)
+ return true;
- if (iface != null)
+ if (IsEnumType (t))
return true;
- else
- return false;
- }
- /// <summary>
- /// Returns the User Defined Types
- /// </summary>
- public static ArrayList UserTypes {
- get {
- return user_types;
- }
- }
+ if (t.IsPointer)
+ return true;
- public static Hashtable TypeContainers {
+ if (IsValueType (t)){
+ if (t is TypeBuilder){
+ TypeContainer tc = LookupTypeContainer (t);
+
+ foreach (Field f in tc.Fields){
+ if (f.FieldBuilder.IsStatic)
+ continue;
+ if (!IsUnmanagedType (f.FieldBuilder.FieldType))
+ return false;
+ }
+ } else {
+ FieldInfo [] fields = t.GetFields ();
+
+ foreach (FieldInfo f in fields){
+ if (f.IsStatic)
+ continue;
+ if (!IsUnmanagedType (f.FieldType))
+ return false;
+ }
+ }
+ return true;
+ }
+
+ return false;
+ }
+
+ public static bool IsValueType (Type t)
+ {
+ if (t.IsSubclassOf (TypeManager.value_type))
+ return true;
+ else
+ return false;
+ }
+
+ public static bool IsInterfaceType (Type t)
+ {
+ Interface iface = builder_to_declspace [t] as Interface;
+
+ if (iface != null)
+ return true;
+ else
+ return false;
+ }
+
+ //
+ // Checks whether `type' is a subclass or nested child of `parent'.
+ //
+ public static bool IsSubclassOrNestedChildOf (Type type, Type parent)
+ {
+ do {
+ if ((type == parent) || type.IsSubclassOf (parent))
+ return true;
+
+ // Handle nested types.
+ type = type.DeclaringType;
+ } while (type != null);
+
+ return false;
+ }
+
+ //
+ // Checks whether `type' is a nested child of `parent'.
+ //
+ public static bool IsNestedChildOf (Type type, Type parent)
+ {
+ if ((type == parent) || type.IsSubclassOf (parent))
+ return false;
+ else
+ return IsSubclassOrNestedChildOf (type, parent);
+ }
+
+ /// <summary>
+ /// Returns the User Defined Types
+ /// </summary>
+ public static ArrayList UserTypes {
+ get {
+ return user_types;
+ }
+ }
+
+ public static Hashtable TypeContainers {
get {
return typecontainers;
}
return types;
}
}
+
+ /// <summary>
+ /// Returns the argument types for an indexer based on its PropertyInfo
+ ///
+ /// For dynamic indexers, we use the compiler provided types, for
+ /// indexers from existing assemblies we load them from GetParameters,
+ /// and insert them into the cache
+ /// </summary>
+ static public Type [] GetArgumentTypes (PropertyInfo indexer)
+ {
+ if (indexer_arguments.Contains (indexer))
+ return (Type []) indexer_arguments [indexer];
+ else if (indexer is PropertyBuilder)
+ // If we're a PropertyBuilder and not in the
+ // `indexer_arguments' hash, then we're a property and
+ // not an indexer.
+ return NoTypes;
+ else {
+ ParameterInfo [] pi = indexer.GetIndexParameters ();
+ // Property, not an indexer.
+ if (pi == null)
+ return NoTypes;
+ int c = pi.Length;
+ Type [] types = new Type [c];
+
+ for (int i = 0; i < c; i++)
+ types [i] = pi [i].ParameterType;
+
+ indexer_arguments.Add (indexer, types);
+ return types;
+ }
+ }
// <remarks>
// This is a workaround the fact that GetValue is not
}
static Hashtable fieldbuilders_to_fields = new Hashtable ();
- static public bool RegisterField (FieldBuilder fb, Field f)
+ static public bool RegisterFieldBase (FieldBuilder fb, FieldBase f)
{
if (fieldbuilders_to_fields.Contains (fb))
return false;
return true;
}
- static public Field GetField (FieldInfo fb)
+ static public FieldBase GetField (FieldInfo fb)
{
- return (Field) fieldbuilders_to_fields [fb];
+ return (FieldBase) fieldbuilders_to_fields [fb];
}
static Hashtable events;
return ei.GetAddMethod ();
}
+ static Hashtable priv_fields_events;
+
+ static public bool RegisterPrivateFieldOfEvent (EventInfo einfo, FieldBuilder builder)
+ {
+ if (priv_fields_events == null)
+ priv_fields_events = new Hashtable ();
+
+ if (priv_fields_events.Contains (einfo))
+ return false;
+
+ priv_fields_events.Add (einfo, builder);
+
+ return true;
+ }
+
+ static public MemberInfo GetPrivateFieldOfEvent (EventInfo ei)
+ {
+ return (MemberInfo) priv_fields_events [ei];
+ }
+
static Hashtable properties;
static public bool RegisterProperty (PropertyBuilder pb, MethodBase get, MethodBase 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){
- Pair pair = (Pair) properties [pi];
- ret = new MethodInfo [2];
- ret [0] = (MethodInfo) pair.First;
- ret [1] = (MethodInfo) pair.Second;
+ static public bool RegisterIndexer (PropertyBuilder pb, MethodBase get, MethodBase set, Type[] args)
+ {
+ if (!RegisterProperty (pb, get,set))
+ return false;
- return ret;
- } else {
- MethodInfo [] mi = new MethodInfo [2];
+ indexer_arguments.Add (pb, args);
- //
- // 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;
- }
+ return true;
}
- static public MethodInfo GetPropertyGetter (PropertyInfo pi)
+ /// <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)
{
- if (pi is PropertyBuilder){
- Pair de = (Pair) properties [pi];
-
- return (MethodInfo) de.Second;
- } else
- return pi.GetSetMethod ();
+ 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;
}
-
- static public MethodInfo GetPropertySetter (PropertyInfo pi)
+
+ /// <summary>
+ /// This function returns the interfaces in the type `t'. Works with
+ /// both types and TypeBuilders.
+ /// </summary>
+ public static Type [] GetInterfaces (Type t)
{
- if (pi is PropertyBuilder){
- Pair de = (Pair) properties [pi];
-
- return (MethodInfo) de.First;
+ //
+ // 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 pi.GetGetMethod ();
+ 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.
// or its parents.
//
do {
- interfaces = t.GetInterfaces ();
+ interfaces = GetInterfaces (t);
- for (int i = interfaces.Length; i > 0; ){
- i--;
- if (interfaces [i] == iface)
- return true;
+ if (interfaces != null){
+ foreach (Type i in interfaces){
+ if (i == iface)
+ return true;
+ }
}
+
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 ();
+ }
+
//
// This is needed, because enumerations from assemblies
// do not report their underlyingtype, but they report
//
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.UInt64:
return TypeManager.uint64_type;
}
- throw new Exception ("Unhandled typecode in enum" + tc);
+ throw new Exception ("Unhandled typecode in enum " + tc + " from " + t.AssemblyQualifiedName);
+ }
+
+ //
+ // 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;
+
+ 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:
+ if (t == typeof (void))
+ return TypeManager.void_type;
+ if (t == typeof (object))
+ return TypeManager.object_type;
+ if (t == typeof (System.Type))
+ return TypeManager.type_type;
+ return t;
+ }
}
/// <summary>
/// </summary>
public static bool VerifyUnManaged (Type t, Location loc)
{
- if (t.IsValueType){
+ if (t.IsValueType || t.IsPointer){
//
// FIXME: this is more complex, we actually need to
// make sure that the type does not contain any
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 ('" +
/// </remarks>
public static string IndexerPropertyName (Type t)
{
-
if (t is TypeBuilder) {
- TypeContainer tc = (TypeContainer) builder_to_container [t];
+ if (t.IsInterface) {
+ Interface i = LookupInterface (t);
- Attributes attrs = tc.OptAttributes;
-
- if (attrs == null || attrs.AttributeSections == null)
- return "Item";
+ if ((i == null) || (i.IndexerName == null))
+ return "Item";
- foreach (AttributeSection asec in attrs.AttributeSections) {
+ return i.IndexerName;
+ } else {
+ TypeContainer tc = LookupTypeContainer (t);
- if (asec.Attributes == null)
- continue;
-
- foreach (Attribute a in asec.Attributes) {
- if (a.Name.IndexOf ("DefaultMember") != -1) {
- ArrayList pos_args = (ArrayList) a.Arguments [0];
- Expression e = ((Argument) pos_args [0]).expr;
+ if ((tc == null) || (tc.IndexerName == null))
+ return "Item";
- if (e is StringConstant)
- return ((StringConstant) e).Value;
- }
- }
+ return tc.IndexerName;
}
-
- return "Item";
}
- System.Attribute attr = System.Attribute.GetCustomAttribute (t, TypeManager.default_member_type);
-
- if (attr != null)
- {
+ System.Attribute attr = System.Attribute.GetCustomAttribute (
+ t, TypeManager.default_member_type);
+ if (attr != null){
DefaultMemberAttribute dma = (DefaultMemberAttribute) attr;
-
return dma.MemberName;
}
// pinned. Figure out API.
//
}
+
+
+ //
+ // 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);
+
+ 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;
+ }
+ if (i != old_count)
+ continue;
+
+ 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, MemberList 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,
+ IsObsoleteError = 2,
+ ShouldIgnore = 3
+ }
+
+ //
+ // Returns the TypeManager.MethodFlags for this method.
+ // This emits an error 619 / warning 618 if the method is obsolete.
+ // In the former case, TypeManager.MethodFlags.IsObsoleteError is returned.
+ //
+ static public MethodFlags GetMethodFlags (MethodBase mb, Location loc)
+ {
+ MethodFlags flags = 0;
+
+ if (mb.DeclaringType is TypeBuilder){
+ MethodData method = (MethodData) builder_to_method [mb];
+ if (method == null) {
+ // FIXME: implement Obsolete attribute on Property,
+ // Indexer and Event.
+ return 0;
+ }
+
+ return method.GetMethodFlags (loc);
+ }
+
+ object [] attrs = mb.GetCustomAttributes (true);
+ 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){
+ ObsoleteAttribute oa = (ObsoleteAttribute) a;
+
+ string method_desc = TypeManager.CSharpSignature (mb);
+
+ if (oa.IsError) {
+ Report.Error (619, loc, "Method `" + method_desc +
+ "' is obsolete: `" + oa.Message + "'");
+ return MethodFlags.IsObsoleteError;
+ } else
+ Report.Warning (618, loc, "Method `" + method_desc +
+ "' is obsolete: `" + oa.Message + "'");
+
+ 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;
+ static Type closure_start_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 ((filter_criteria != null) && (m.Name != (string) filter_criteria))
+ return false;
+
+ if ((closure_start_type == closure_invocation_type) &&
+ (m.DeclaringType == closure_invocation_type))
+ return true;
+
+ //
+ // 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 || (closure_invocation_type == m.DeclaringType);
+
+ //
+ // 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;
+ }
+
+ // Assembly and FamORAssem succeed if we're in the same assembly.
+ if ((ma == MethodAttributes.Assembly) || (ma == MethodAttributes.FamORAssem)){
+ if (closure_invocation_assembly == mb.DeclaringType.Assembly)
+ return true;
+ }
+
+ // We already know that we aren't in the same assembly.
+ if (ma == MethodAttributes.Assembly)
+ return false;
+
+ // Family and FamANDAssem require that we derive.
+ if ((ma == MethodAttributes.Family) || (ma == MethodAttributes.FamANDAssem)){
+ if (closure_invocation_type == null)
+ return false;
+
+ if (!IsSubclassOrNestedChildOf (closure_invocation_type, mb.DeclaringType))
+ return false;
+
+ // Although a derived class can access protected members of its base class
+ // it cannot do so through an instance of the base class (CS1540).
+ if (!mb.IsStatic && (closure_invocation_type != closure_start_type) &&
+ closure_invocation_type.IsSubclassOf (closure_start_type))
+ return false;
+
+ return true;
+ }
+
+ // 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 || (closure_invocation_type == m.DeclaringType);
+
+ //
+ // 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;
+ }
+
+ // Assembly and FamORAssem succeed if we're in the same assembly.
+ if ((fa == FieldAttributes.Assembly) || (fa == FieldAttributes.FamORAssem)){
+ if (closure_invocation_assembly == fi.DeclaringType.Assembly)
+ return true;
+ }
+
+ // We already know that we aren't in the same assembly.
+ if (fa == FieldAttributes.Assembly)
+ return false;
+
+ // Family and FamANDAssem require that we derive.
+ if ((fa == FieldAttributes.Family) || (fa == FieldAttributes.FamANDAssem)){
+ if (closure_invocation_type == null)
+ return false;
+
+ if (!IsSubclassOrNestedChildOf (closure_invocation_type, fi.DeclaringType))
+ return false;
+
+ // Although a derived class can access protected members of its base class
+ // it cannot do so through an instance of the base class (CS1540).
+ if (!fi.IsStatic && (closure_invocation_type != closure_start_type) &&
+ closure_invocation_type.IsSubclassOf (closure_start_type))
+ return false;
+
+ return true;
+ }
+
+ // Public.
+ return true;
+ }
+
+ //
+ // EventInfos and PropertyInfos, return true because they lack permission
+ // informaiton, so we need to check later on the methods.
+ //
+ 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)
+ {
+ Timer.StartTimer (TimerType.MemberLookup);
+
+ MemberInfo[] retval = RealMemberLookup (invocation_type, queried_type,
+ mt, original_bf, name);
+
+ Timer.StopTimer (TimerType.MemberLookup);
+
+ return retval;
+ }
+
+ static MemberInfo [] RealMemberLookup (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;
+ bool skip_iface_check = true, used_cache = false;
+
+ closure_name = name;
+ closure_invocation_type = invocation_type;
+ closure_invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
+ closure_start_type = queried_type;
+
+ //
+ // 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 {
+ MemberList list;
+
+ //
+ // `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;
+
+ Timer.StopTimer (TimerType.MemberLookup);
+
+ list = MemberLookup_FindMembers (current_type, mt, bf, name, out used_cache);
+
+ Timer.StartTimer (TimerType.MemberLookup);
+
+ //
+ // When queried for an interface type, the cache will automatically check all
+ // inherited members, so we don't need to do this here. However, this only
+ // works if we already used the cache in the first iteration of this loop.
+ //
+ // If we used the cache in any further iteration, we can still terminate the
+ // loop since the cache always looks in all parent classes.
+ //
+
+ if (used_cache)
+ searching = false;
+ else
+ skip_iface_check = false;
+
+ 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 (list.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 (list.Count == 1 && !(list [0] is MethodBase)){
+ return (MemberInfo []) list;
+ }
+
+ //
+ // Multiple properties: we query those just to find out the indexer
+ // name
+ //
+ if (list [0] is PropertyInfo)
+ return (MemberInfo []) list;
+
+ //
+ // We found methods, turn the search into "method scan"
+ // mode.
+ //
+
+ method_list = CopyNewMethods (method_list, list);
+ mt &= (MemberTypes.Method | MemberTypes.Constructor);
+ } while (searching);
+
+ if (method_list != null && method_list.Count > 0)
+ return (MemberInfo []) method_list.ToArray (typeof (MemberInfo));
+
+ //
+ // This happens if we already used the cache in the first iteration, in this case
+ // the cache already looked in all interfaces.
+ //
+ if (skip_iface_check)
+ return null;
+
+ //
+ // 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
+
+}
+
+/// <summary>
+/// There is exactly one instance of this class per type.
+/// </summary>
+public sealed class TypeHandle : IMemberContainer {
+ public readonly TypeHandle BaseType;
+
+ readonly int id = ++next_id;
+ static int next_id = 0;
+
+ /// <summary>
+ /// Lookup a TypeHandle instance for the given type. If the type doesn't have
+ /// a TypeHandle yet, a new instance of it is created. This static method
+ /// ensures that we'll only have one TypeHandle instance per type.
+ /// </summary>
+ public static TypeHandle GetTypeHandle (Type t)
+ {
+ TypeHandle handle = (TypeHandle) type_hash [t];
+ if (handle != null)
+ return handle;
+
+ handle = new TypeHandle (t);
+ type_hash.Add (t, handle);
+ return handle;
+ }
+
+ /// <summary>
+ /// Returns the TypeHandle for TypeManager.object_type.
+ /// </summary>
+ public static IMemberContainer ObjectType {
+ get {
+ if (object_type != null)
+ return object_type;
+
+ object_type = GetTypeHandle (TypeManager.object_type);
+
+ return object_type;
+ }
+ }
+
+ /// <summary>
+ /// Returns the TypeHandle for TypeManager.array_type.
+ /// </summary>
+ public static IMemberContainer ArrayType {
+ get {
+ if (array_type != null)
+ return array_type;
+
+ array_type = GetTypeHandle (TypeManager.array_type);
+
+ return array_type;
+ }
+ }
+
+ private static PtrHashtable type_hash = new PtrHashtable ();
+
+ private static TypeHandle object_type = null;
+ private static TypeHandle array_type = null;
+
+ private Type type;
+ private bool is_interface;
+ private MemberCache member_cache;
+
+ private TypeHandle (Type type)
+ {
+ this.type = type;
+ if (type.BaseType != null)
+ BaseType = GetTypeHandle (type.BaseType);
+ else if ((type != TypeManager.object_type) && (type != typeof (object)))
+ is_interface = true;
+ this.member_cache = new MemberCache (this);
+ }
+
+ // IMemberContainer methods
+
+ public string Name {
+ get {
+ return type.FullName;
+ }
+ }
+
+ public Type Type {
+ get {
+ return type;
+ }
+ }
+
+ public IMemberContainer Parent {
+ get {
+ return BaseType;
+ }
+ }
+
+ public bool IsInterface {
+ get {
+ return is_interface;
+ }
+ }
+
+ public MemberList GetMembers (MemberTypes mt, BindingFlags bf)
+ {
+ if (mt == MemberTypes.Event)
+ return new MemberList (type.GetEvents (bf | BindingFlags.DeclaredOnly));
+ else
+ return new MemberList (type.FindMembers (mt, bf | BindingFlags.DeclaredOnly,
+ null, null));
+ }
+
+ // IMemberFinder methods
+
+ public MemberList FindMembers (MemberTypes mt, BindingFlags bf, string name,
+ MemberFilter filter, object criteria)
+ {
+ return member_cache.FindMembers (mt, bf, name, filter, criteria);
+ }
+
+ public MemberCache MemberCache {
+ get {
+ return member_cache;
+ }
+ }
+
+ public override string ToString ()
+ {
+ if (BaseType != null)
+ return "TypeHandle (" + id + "," + Name + " : " + BaseType + ")";
+ else
+ return "TypeHandle (" + id + "," + Name + ")";
+ }
}
}
projects / mono.git / blobdiff