// (C) 2001 Ximian, Inc (http://www.ximian.com)
//
//
+
+//
+// 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.IO;
using System.Globalization;
using System.Collections;
using System.Reflection;
using System.Reflection.Emit;
+using System.Text;
using System.Text.RegularExpressions;
using System.Runtime.CompilerServices;
using System.Diagnostics;
static public Type icloneable_type;
static public Type type_type;
static public Type ienumerator_type;
+ static public Type ienumerable_type;
static public Type idisposable_type;
static public Type default_member_type;
static public Type iasyncresult_type;
static public Type methodimpl_attr_type;
static public Type marshal_as_attr_type;
static public Type param_array_type;
+ static public Type guid_attr_type;
static public Type void_ptr_type;
static public Type indexer_name_type;
static public Type exception_type;
+ static public Type invalid_operation_exception_type;
static public object obsolete_attribute_type;
static public object conditional_attribute_type;
+ static public Type in_attribute_type;
//
// An empty array of types
// These methods are called by code generated by the compiler
//
static public MethodInfo string_concat_string_string;
+ static public MethodInfo string_concat_string_string_string;
+ static public MethodInfo string_concat_string_string_string_string;
static public MethodInfo string_concat_object_object;
static public MethodInfo string_isinterneted_string;
static public MethodInfo system_type_get_type_from_handle;
static public MethodInfo object_getcurrent_void;
static public MethodInfo bool_movenext_void;
+ static public MethodInfo ienumerable_getenumerator_void;
+ static public MethodInfo void_reset_void;
static public MethodInfo void_dispose_void;
static public MethodInfo void_monitor_enter_object;
static public MethodInfo void_monitor_exit_object;
//
// The attribute constructors.
//
+ static public ConstructorInfo object_ctor;
static public ConstructorInfo cons_param_array_attribute;
static public ConstructorInfo void_decimal_ctor_five_args;
static public ConstructorInfo unverifiable_code_ctor;
+ static public ConstructorInfo invalid_operation_ctor;
// <remarks>
// Holds the Array of Assemblies that have been loaded
modules = n;
}
+ static Hashtable references = new Hashtable ();
+
+ //
+ // Gets the reference to T version of the Type (T&)
+ //
+ public static Type GetReferenceType (Type t)
+ {
+ string tname = t.FullName + "&";
+
+ Type ret = t.Assembly.GetType (tname);
+
+ //
+ // If the type comes from the assembly we are building
+ // We need the Hashtable, because .NET 1.1 will return different instance types
+ // every time we call ModuleBuilder.GetType.
+ //
+ if (ret == null){
+ if (references [t] == null)
+ references [t] = CodeGen.ModuleBuilder.GetType (tname);
+ ret = (Type) references [t];
+ }
+
+ return ret;
+ }
+
+ static Hashtable pointers = new Hashtable ();
+
+ //
+ // Gets the pointer to T version of the Type (T*)
+ //
+ public static Type GetPointerType (Type t)
+ {
+ string tname = t.FullName + "*";
+
+ Type ret = t.Assembly.GetType (tname);
+
+ //
+ // If the type comes from the assembly we are building
+ // We need the Hashtable, because .NET 1.1 will return different instance types
+ // every time we call ModuleBuilder.GetType.
+ //
+ if (ret == null){
+ if (pointers [t] == null)
+ pointers [t] = CodeGen.ModuleBuilder.GetType (tname);
+
+ ret = (Type) pointers [t];
+ }
+
+ return ret;
+ }
+
//
// Low-level lookup, cache-less
//
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.
types [name] = t;
return t;
}
-
+
+ //
+ // UNUSED: This version tries to reduce the impact of calling LookupType by validating if
+ // UNUSED: the namespace exists
+ //
+ public static Type xLookupType (string ns, string name, out string res)
+ {
+ // CURRENTLY UNUSED
+ // CURRENTLY UNUSED
+ // CURRENTLY UNUSED
+ // CURRENTLY UNUSED
+
+ if (!IsNamespace (ns)){
+ res = null;
+ return null;
+ }
+
+ res = DeclSpace.MakeFQN (ns, name);
+ return LookupType (res);
+ // CURRENTLY UNUSED
+ // CURRENTLY UNUSED
+ // CURRENTLY UNUSED
+ // CURRENTLY UNUSED
+ // CURRENTLY UNUSED
+ }
+
/// <summary>
/// Returns the Type associated with @name, takes care of the fact that
/// reflection expects nested types to be separated from the main type
if (t != null)
return t;
- //
- // 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.
- //
-
+ // Two thirds of the failures are caught here.
+ if (negative_hits.Contains (name))
+ return null;
+
string [] elements = name.Split ('.');
int count = elements.Length;
for (int n = 1; n <= count; n++){
string top_level_type = String.Join (".", elements, 0, n);
+ // One third of the failures are caught here.
+ if (negative_hits.Contains (top_level_type))
+ continue;
+
t = (Type) types [top_level_type];
if (t == null){
t = LookupTypeReflection (top_level_type);
- if (t == null)
+ if (t == null){
+ negative_hits [top_level_type] = true;
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;
+ //Console.WriteLine ("Looking up: " + newt + " " + name);
+ t = LookupTypeReflection (newt);
+ if (t == null)
+ negative_hits [name] = true;
+ else
+ types [name] = t;
return t;
}
+ negative_hits [name] = true;
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;
- }
- }
+ // Total list of known namespaces for the compilation
+ static string [] namespaces;
+ static Hashtable AddModuleNamespaces (Hashtable h)
+ {
foreach (ModuleBuilder mb in modules){
foreach (Type t in mb.GetTypes ()){
string ns = t.Namespace;
- if (namespaces.Contains (ns))
+ if (h.Contains (ns))
continue;
- namespaces [ns] = ns;
+ h [ns] = ns;
}
}
- return namespaces;
+ return h;
}
+
+ /// <summary>
+ /// Computes the namespaces that we import from the assemblies we reference.
+ /// </summary>
+ public static void ComputeNamespaces ()
+ {
+ MethodInfo assembly_get_namespaces = typeof (Assembly).GetMethod ("GetNamespaces");
+
+ //
+ // First add the assembly namespaces
+ //
+ Hashtable namespaces_hash = new Hashtable ();
+ if (assembly_get_namespaces != null){
+ int count = assemblies.Length;
+ int total;
+
+ for (int i = 0; i < count; i++){
+ Assembly a = assemblies [i];
+ string [] namespaces = (string []) assembly_get_namespaces.Invoke (a, null);
+ foreach (string ns in namespaces){
+ if (ns == "")
+ continue;
+ if (namespaces_hash.Contains (ns))
+ continue;
+ namespaces_hash [ns] = true;
+ }
+ }
+ } else {
+ foreach (Assembly a in assemblies){
+ foreach (Type t in a.GetTypes ()){
+ string ns = t.Namespace;
+
+ // t.Namespace returns null for <PrivateImplDetails>
+ if (ns == ""|| ns == null)
+ continue;
+ if (namespaces_hash.Contains (ns))
+ continue;
+ namespaces_hash [ns] = true;
+ }
+ }
+ }
+ //
+ // Now insert all the namespaces defined by the application
+ //
+ StringBuilder s = null;
+ foreach (Namespace ns in Namespace.UserDefinedNamespaces){
+ string name = ns.Name;
+ if (name == "")
+ continue;
+ if (name == null)
+ throw new Exception ();
+ if (namespaces_hash.Contains (name))
+ continue;
+
+ if (name.IndexOf ('.') != -1){
+ if (s == null)
+ s = new StringBuilder ();
+ string [] pieces = name.Split ('.');
+ for (int i = 1; i < pieces.Length; i++){
+ s.Length = 0;
+
+ s.Append (pieces [0]);
+ for (int j = 1; j < i; j++){
+ s.Append (".");
+ s.Append (pieces [j]);
+ }
+ string n = s.ToString ();
+ if (namespaces_hash.Contains (n))
+ continue;
+ namespaces_hash [n] = true;
+ }
+ }
+
+ namespaces_hash [name] = true;
+ }
+
+ //
+ // Store it sorted
+ //
+ int idx = 0;
+ TypeManager.namespaces = new string [namespaces_hash.Count];
+ foreach (string ns in namespaces_hash.Keys){
+ namespaces [idx++] = ns;
+ }
+ Array.Sort (namespaces);
+ }
+
+ public static bool IsNamespace (string name)
+ {
+ if (Array.BinarySearch (namespaces, name) < 0)
+ return false;
+
+ return true;
+ }
+
+ public static bool NamespaceClash (string name)
+ {
+ if (Array.BinarySearch (namespaces, name) < 0)
+ return false;
+
+ Report.Error (519, String.Format ("`{0}' clashes with a predefined namespace", name));
+ return true;
+ }
+
/// <summary>
/// Returns the C# name of a type if possible, or the full type name otherwise
/// </summary>
{
return Regex.Replace (t.FullName,
@"^System\." +
- @"(Int32|UInt32|Int16|Uint16|Int64|UInt64|" +
+ @"(Int32|UInt32|Int16|UInt16|Int64|UInt64|" +
@"Single|Double|Char|Decimal|Byte|SByte|Object|" +
@"Boolean|String|Void)" +
@"(\W+|\b)",
/// </summary>
static Type CoreLookupType (string name)
{
- Type t = LookupType (name);
+ Type t = LookupTypeDirect (name);
if (t == null){
Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
asynccallback_type = CoreLookupType ("System.AsyncCallback");
iasyncresult_type = CoreLookupType ("System.IAsyncResult");
ienumerator_type = CoreLookupType ("System.Collections.IEnumerator");
+ ienumerable_type = CoreLookupType ("System.Collections.IEnumerable");
idisposable_type = CoreLookupType ("System.IDisposable");
icloneable_type = CoreLookupType ("System.ICloneable");
monitor_type = CoreLookupType ("System.Threading.Monitor");
attribute_usage_type = CoreLookupType ("System.AttributeUsageAttribute");
dllimport_type = CoreLookupType ("System.Runtime.InteropServices.DllImportAttribute");
methodimpl_attr_type = CoreLookupType ("System.Runtime.CompilerServices.MethodImplAttribute");
- marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
- param_array_type = CoreLookupType ("System.ParamArrayAttribute");
+ marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
+ param_array_type = CoreLookupType ("System.ParamArrayAttribute");
+ in_attribute_type = CoreLookupType ("System.Runtime.InteropServices.InAttribute");
+
+ //
+ // Sigh. Remove this before the release. Wonder what versions of Mono
+ // people are running.
+ //
+ guid_attr_type = LookupType ("System.Runtime.InteropServices.GuidAttribute");
unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
indexer_name_type = CoreLookupType ("System.Runtime.CompilerServices.IndexerNameAttribute");
exception_type = CoreLookupType ("System.Exception");
+ invalid_operation_exception_type = CoreLookupType ("System.InvalidOperationException");
//
// Attribute types
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");
+ if (system_void_set_corlib_type_builders != null){
+ 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);
+ } else {
+ Report.Error (-26, "Corlib compilation is not supported in Microsoft.NET due to bugs in it");
}
}
}
Type [] string_string = { string_type, string_type };
string_concat_string_string = GetMethod (
string_type, "Concat", string_string);
+ Type [] string_string_string = { string_type, string_type, string_type };
+ string_concat_string_string_string = GetMethod (
+ string_type, "Concat", string_string_string);
+ Type [] string_string_string_string = { string_type, string_type, string_type, string_type };
+ string_concat_string_string_string_string = GetMethod (
+ string_type, "Concat", string_string_string_string);
Type [] object_object = { object_type, object_type };
string_concat_object_object = GetMethod (
ienumerator_type, "get_Current", void_arg);
bool_movenext_void = GetMethod (
ienumerator_type, "MoveNext", void_arg);
+ void_reset_void = GetMethod (
+ ienumerator_type, "Reset", void_arg);
void_dispose_void = GetMethod (
idisposable_type, "Dispose", void_arg);
int_get_offset_to_string_data = GetMethod (
array_type, "get_Length", void_arg);
int_array_get_rank = GetMethod (
array_type, "get_Rank", void_arg);
-
+ ienumerable_getenumerator_void = GetMethod (
+ ienumerable_type, "GetEnumerator", void_arg);
+
//
// Int32 arguments
//
unverifiable_code_ctor = GetConstructor (
unverifiable_code_type, void_arg);
-
+
+ //
+ // InvalidOperationException
+ //
+ invalid_operation_ctor = GetConstructor (
+ invalid_operation_exception_type, void_arg);
+
+
+ // Object
+ object_ctor = GetConstructor (object_type, void_arg);
+
}
const BindingFlags instance_and_static = BindingFlags.Static | BindingFlags.Instance;
// 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)) {
+ if (t == TypeManager.array_type || t.IsSubclassOf (TypeManager.array_type)) {
used_cache = true;
return TypeHandle.ArrayType.MemberCache.FindMembers (
mt, bf, name, FilterWithClosure_delegate, null);
return false;
}
+ //
+ // This is like IsBuiltinType, but lacks decimal_type, we should also clean up
+ // the pieces in the code where we use IsBuiltinType and special case decimal_type.
+ //
+ public static bool IsCLRType (Type t)
+ {
+ if (t == object_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 == bool_type ||
+ t == sbyte_type || t == byte_type || t == ushort_type)
+ return true;
+ else
+ return false;
+ }
+
public static bool IsDelegateType (Type t)
{
if (t.IsSubclassOf (TypeManager.delegate_type))
public static bool IsEnumType (Type t)
{
- if (t.IsSubclassOf (TypeManager.enum_type))
+ if (t == TypeManager.enum_type || t.IsSubclassOf (TypeManager.enum_type))
return true;
else
return false;
//
// Whether a type is unmanaged. This is used by the unsafe code (25.2)
//
- Hashtable managed_types;
public static bool IsUnmanagedType (Type t)
{
if (IsBuiltinType (t) && t != TypeManager.string_type)
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)
+ foreach (FieldInfo f in fields){
+ if (f.IsStatic)
+ continue;
if (!IsUnmanagedType (f.FieldType))
return false;
+ }
}
return true;
}
public static bool IsValueType (Type t)
{
- if (t.IsSubclassOf (TypeManager.value_type))
+ if (t.IsSubclassOf (TypeManager.value_type) && (t != TypeManager.enum_type))
return true;
else
return false;
//
public static bool IsNestedChildOf (Type type, Type parent)
{
- if ((type == parent) || type.IsSubclassOf (parent))
+ if (type == parent)
return false;
- else
- return IsSubclassOrNestedChildOf (type, parent);
+
+ type = type.DeclaringType;
+ while (type != null) {
+ if ((type == parent) || type.IsSubclassOf (parent))
+ return true;
+
+ type = type.DeclaringType;
+ }
+
+ return false;
}
/// <summary>
}
}
+ static Hashtable attr_to_allowmult;
+
+ public static void RegisterAttributeAllowMultiple (Type attr_type, bool allow)
+ {
+ if (attr_to_allowmult == null)
+ attr_to_allowmult = new PtrHashtable ();
+
+ if (attr_to_allowmult.Contains (attr_type))
+ return;
+
+ attr_to_allowmult.Add (attr_type, allow);
+
+ }
+
+ public static bool AreMultipleAllowed (Type attr_type)
+ {
+ if (!(attr_type is TypeBuilder)) {
+ System.Attribute [] attrs = System.Attribute.GetCustomAttributes (attr_type);
+
+ foreach (System.Attribute tmp in attrs)
+ if (tmp is AttributeUsageAttribute)
+ return ((AttributeUsageAttribute) tmp).AllowMultiple;
+
+ return false;
+ }
+
+ if (attr_to_allowmult == null)
+ return false;
+
+ return (bool) attr_to_allowmult [attr_type];
+ }
+
static Hashtable builder_to_constant;
public static void RegisterConstant (FieldBuilder fb, Const c)
return (MethodInfo) pair.Second;
} else
- return ei.GetAddMethod ();
+ return ei.GetRemoveMethod ();
}
static Hashtable priv_fields_events;
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;
-
- 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.GetSetMethod ();
- }
-
- static public MethodInfo GetPropertySetter (PropertyInfo pi)
- {
- if (pi is PropertyBuilder){
- Pair de = (Pair) properties [pi];
-
- return (MethodInfo) de.First;
- } else
- return pi.GetGetMethod ();
- }
-
/// <summary>
/// Given an array of interface types, expand and eliminate repeated ocurrences
/// of an interface.
// 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)
+ public static object ChangeType (object value, Type conversionType, out bool error)
{
- if (!(value is IConvertible))
- throw new ArgumentException ();
-
+ if (!(value is IConvertible)){
+ error = true;
+ return null;
+ }
+
IConvertible convertValue = (IConvertible) value;
CultureInfo ci = CultureInfo.CurrentCulture;
NumberFormatInfo provider = ci.NumberFormat;
// the system type itself. You cannot use Type.GetTypeCode()
// on such a type - it'd always return TypeCode.Object.
//
+ error = false;
if (conversionType.Equals (typeof (Boolean)))
return (object)(convertValue.ToBoolean (provider));
else if (conversionType.Equals (typeof (Byte)))
else if (conversionType.Equals (typeof (Object)))
return (object)(value);
else
- throw new InvalidCastException ();
+ error = true;
+ return null;
}
//
//
static Type closure_invocation_type;
static Type closure_queried_type;
- static Type closure_start_type;
+ static Type closure_qualifier_type;
//
// The assembly that defines the type is that is calling us
//
static Assembly closure_invocation_assembly;
+ static internal bool FilterNone (MemberInfo m, object filter_criteria)
+ {
+ return true;
+ }
+
//
// This filter filters by name + whether it is ok to include private
// members in the search
//
if ((filter_criteria != null) && (m.Name != (string) filter_criteria))
- return false;
+ return false;
- if ((closure_start_type == closure_invocation_type) &&
+ if (((closure_qualifier_type == null) || (closure_qualifier_type == closure_invocation_type)) &&
(m.DeclaringType == closure_invocation_type))
return true;
MethodAttributes ma = mb.Attributes & MethodAttributes.MemberAccessMask;
if (ma == MethodAttributes.Private)
- return closure_private_ok || (closure_invocation_type == m.DeclaringType);
+ return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
+ IsNestedChildOf (closure_invocation_type, m.DeclaringType);
//
// FamAndAssem requires that we not only derivate, but we are on the
// 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 ((closure_invocation_type != closure_start_type) &&
- closure_invocation_type.IsSubclassOf (closure_start_type))
+ if (!mb.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
+ (closure_qualifier_type != null) &&
+ closure_invocation_type.IsSubclassOf (closure_qualifier_type))
return false;
return true;
FieldAttributes fa = fi.Attributes & FieldAttributes.FieldAccessMask;
if (fa == FieldAttributes.Private)
- return closure_private_ok || (closure_invocation_type == m.DeclaringType);
+ return closure_private_ok || (closure_invocation_type == m.DeclaringType) ||
+ IsNestedChildOf (closure_invocation_type, m.DeclaringType);
//
// FamAndAssem requires that we not only derivate, but we are on the
// 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 ((closure_invocation_type != closure_start_type) &&
- closure_invocation_type.IsSubclassOf (closure_start_type))
+ if (!fi.IsStatic && (closure_invocation_type != closure_qualifier_type) &&
+ (closure_qualifier_type != null) &&
+ closure_invocation_type.IsSubclassOf (closure_qualifier_type))
return false;
return true;
}
//
- // EventInfos and PropertyInfos, 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);
+ static MemberFilter FilterNone_delegate = new MemberFilter (FilterNone);
//
// 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'.
+ // is done by code that is contained in the definition for `invocation_type'
+ // through a qualifier of type `qualifier_type' (or null if there is no qualifier).
+ //
+ // `invocation_type' is used to check whether we're allowed to access the requested
+ // member wrt its protection level.
+ //
+ // When called from MemberAccess, `qualifier_type' is the type which is used to access
+ // the requested member (`class B { A a = new A (); a.foo = 5; }'; here invocation_type
+ // is B and qualifier_type is A). This is used to do the CS1540 check.
+ //
+ // When resolving a SimpleName, `qualifier_type' is null.
+ //
+ // The `qualifier_type' is used for the CS1540 check; it's normally either null or
+ // the same than `queried_type' - except when we're being called from BaseAccess;
+ // in this case, `invocation_type' is the current type and `queried_type' the base
+ // type, so this'd normally trigger a CS1540.
//
// The binding flags are `bf' and the kind of members being looked up are `mt'
//
+ // The return value always includes private members which code in `invocation_type'
+ // is allowed to access (using the specified `qualifier_type' if given); only use
+ // BindingFlags.NonPublic to bypass the permission check.
+ //
// 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)
+ public static MemberInfo [] MemberLookup (Type invocation_type, Type qualifier_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);
+ MemberInfo[] retval = RealMemberLookup (invocation_type, qualifier_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)
+ static MemberInfo [] RealMemberLookup (Type invocation_type, Type qualifier_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;
+ bool always_ok_flag = false;
closure_name = name;
closure_invocation_type = invocation_type;
closure_invocation_assembly = invocation_type != null ? invocation_type.Assembly : null;
- closure_start_type = queried_type;
+ closure_qualifier_type = qualifier_type;
//
// If we are a nested class, we always have access to our container
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);
// public, private and protected (internal does not come into the
// equation)
//
- if (invocation_type != null){
- if (invocation_type == current_type){
- private_ok = (bf & BindingFlags.NonPublic) != 0;
- } 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;
- }
+ if ((invocation_type != null) &&
+ ((invocation_type == current_type) ||
+ IsNestedChildOf (invocation_type, current_type)) ||
+ always_ok_flag)
+ bf = original_bf | BindingFlags.NonPublic;
+ else
+ bf = original_bf;
- closure_private_ok = private_ok;
+ closure_private_ok = (original_bf & BindingFlags.NonPublic) != 0;
closure_queried_type = current_type;
Timer.StopTimer (TimerType.MemberLookup);
if (list.Count == 0)
continue;
-
+
//
// Events and types are returned by both `static' and `instance'
// searches, which means that our above FindMembers will
if (list [0] is PropertyInfo)
return (MemberInfo []) list;
+ //
+ // We found an event: the cache lookup returns both the event and
+ // its private field.
+ //
+ if (list [0] is EventInfo) {
+ if ((list.Count == 2) && (list [1] is FieldInfo))
+ return new MemberInfo [] { list [0] };
+
+ // Oooops
+ return null;
+ }
+
//
// We found methods, turn the search into "method scan"
// mode.
//
-
+
method_list = CopyNewMethods (method_list, list);
mt &= (MemberTypes.Method | MemberTypes.Constructor);
} while (searching);
foreach (Type itype in ifaces){
MemberInfo [] x;
- x = MemberLookup (null, itype, mt, bf, name);
+ x = MemberLookup (null, null, itype, mt, bf, name);
if (x != null)
return x;
}
return null;
}
+
+ //
+ // This is used to extract properties and event declarations from a type
+ //
+ static MemberInfo [] SpecialContainerLookup (Type t, bool is_static)
+ {
+ BindingFlags bf = BindingFlags.DeclaredOnly | (is_static ? BindingFlags.Static : BindingFlags.Instance);
+
+ bf |= BindingFlags.Public | BindingFlags.NonPublic;
+
+ if (t is TypeBuilder) {
+ DeclSpace decl = (DeclSpace) builder_to_declspace [t];
+
+ return (MemberInfo []) decl.FindMembers (
+ MemberTypes.Property | MemberTypes.Event,
+ bf, FilterNone_delegate, null);
+ } else {
+ return t.FindMembers (MemberTypes.Property | MemberTypes.Event,
+ bf, FilterNone_delegate, null);
+
+ }
+ }
+
+ public static bool IsSpecialMethod (MethodBase mb)
+ {
+ Type t = mb.DeclaringType;
+
+ MemberInfo [] matches = TypeManager.SpecialContainerLookup (t, mb.IsStatic);
+ if (matches == null)
+ return false;
+
+ foreach (MemberInfo mi in matches){
+ if (mi is PropertyBuilder){
+ Pair p = (Pair) properties [mi];
+
+ if (p.First == mb || p.Second == mb)
+ return true;
+ } else if (mi is PropertyInfo){
+ MethodInfo [] methods = ((PropertyInfo) mi).GetAccessors (true);
+
+ foreach (MethodInfo m in methods){
+ if (m == mb)
+ return true;
+ }
+ } else if (mi is MyEventBuilder){
+ Pair p = (Pair) events [mi];
+
+ if (p.First == mb || p.Second == mb)
+ return true;
+ } else if (mi is EventInfo){
+ EventInfo ei = ((EventInfo) mi);
+
+ if (ei.GetAddMethod (true) == mb)
+ return true;
+
+ if (ei.GetRemoveMethod (true) == mb)
+ return true;
+
+ if (ei.GetRaiseMethod (true) == mb)
+ return true;
+ }
+ }
+
+ //
+ // Now check if it is an operator method
+ //
+ string s = mb.Name;
+
+ if (s.StartsWith ("op_")){
+ foreach (string name in Unary.oper_names){
+ if (s == name)
+ return true;
+ }
+
+ foreach (string name in Binary.oper_names){
+ if (s == name)
+ return true;
+ }
+ }
+
+ return false;
+ }
+
#endregion
}
projects / mono.git / blobdiff