// (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;
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;
// 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;
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.
if (t != null)
return 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.
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);
types [newt] = t;
return t;
}
+
+#if SIMPLE_SPEEDUP
+ negative_hits [name] = true;
+#endif
return null;
}
+ static Hashtable assemblies_namespaces = new Hashtable ();
+
//
// Returns a list of all namespaces in the assemblies and types loaded.
//
- public static Hashtable GetNamespaces ()
+ static Hashtable ExtractAssemblyNamespaces ()
{
- Hashtable namespaces = new Hashtable ();
-
foreach (Assembly a in assemblies){
foreach (Type t in a.GetTypes ()){
string ns = t.Namespace;
- if (namespaces.Contains (ns))
+ if (assemblies_namespaces.Contains (ns))
continue;
- namespaces [ns] = ns;
+ assemblies_namespaces [ns] = ns;
}
}
+ return assemblies_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 h;
+ }
+
+
+ /// <summary>
+ /// Returns the list of namespaces that are active for this executable
+ /// </summary>
+ public static Hashtable GetAssemblyNamespaces (string executable_name)
+ {
+ string cache_name = executable_name + ".nsc";
+ Hashtable cached_namespaces = LoadCache (cache_name);
+
+ if (cached_namespaces != null)
+ assemblies_namespaces = cached_namespaces;
+ else {
+ Console.WriteLine ("rebuilding namespace cache");
+ assemblies_namespaces = ExtractAssemblyNamespaces ();
+ SaveCache (cache_name);
+ }
+
+ return assemblies_namespaces;
+ }
+
+ public static Hashtable GetNamespaces ()
+ {
+ if (assemblies_namespaces == null)
+ assemblies_namespaces = ExtractAssemblyNamespaces ();
+
+ Hashtable nh = (Hashtable) assemblies_namespaces.Clone ();
+
+ return AddModuleNamespaces (nh);
+ }
+
+ //
+ // Loads the namespace cache for the given executable name
+ //
+ static Hashtable LoadCache (string cache_file)
+ {
+ if (!File.Exists (cache_file)){
+ Console.WriteLine ("Cache not found");
+ return null;
+ }
+
+
+ Hashtable cached_module_list, cached_namespaces;
+ try {
+ using (FileStream fs = File.OpenRead (cache_file)){
+ StreamReader reader = new StreamReader (fs);
+
+ int assembly_count = Int32.Parse (reader.ReadLine ());
+
+ if (assembly_count != assemblies.Length){
+ Console.WriteLine ("Assembly missmatch ({0}, {1})", assembly_count, assemblies.Length);
+ return null;
+ }
+
+ int namespace_count = Int32.Parse (reader.ReadLine ());
+
+ cached_module_list = new Hashtable (assembly_count);
+ for (int i = 0; i < assembly_count; i++)
+ cached_module_list [reader.ReadLine ()] = true;
+
+ cached_namespaces = new Hashtable (namespace_count);
+ for (int i = 0; i < namespace_count; i++){
+ string s = reader.ReadLine ();
+ cached_namespaces [s] = s;
+ }
+ }
+
+ //
+ // Now, check that the cache is still valid
+ //
+
+ foreach (Assembly a in assemblies)
+ if (cached_module_list [a.CodeBase] == null){
+ Console.WriteLine ("assembly not found in cache: " + a.CodeBase);
+ return null;
+ }
+
+ return cached_namespaces;
+ } catch {
+ }
+ return null;
+ }
+
+ static void SaveCache (string cache_file)
+ {
+ try {
+ using (FileStream fs = File.OpenWrite (cache_file)){
+ StreamWriter writer = new StreamWriter (fs);
+
+ writer.WriteLine (assemblies.Length);
+ writer.WriteLine (assemblies_namespaces.Count);
+
+ foreach (Assembly a in assemblies)
+ writer.WriteLine (a.CodeBase);
+
+ foreach (DictionaryEntry de in assemblies_namespaces){
+ writer.WriteLine ((string) de.Key);
+ }
+
+ writer.Flush ();
+ fs.Flush ();
+ }
+ } catch (Exception e) {
+ Console.WriteLine ("Failed: " + e);
+ }
+ }
+
+ 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 ()){
}
}
- return namespaces;
}
+
/// <summary>
/// Returns the C# name of a type if possible, or the full type name otherwise
marshal_as_attr_type = CoreLookupType ("System.Runtime.InteropServices.MarshalAsAttribute");
param_array_type = CoreLookupType ("System.ParamArrayAttribute");
+ //
+ // Temporary while people upgrade their corlibs
+ //
+ //
+ // Change from LookupType to CoreLookupType before release
+ //
+ guid_attr_type = LookupType ("System.Runtime.InteropServices.GuidAttribute");
+
unverifiable_code_type= CoreLookupType ("System.Security.UnverifiableCodeAttribute");
void_ptr_type = CoreLookupType ("System.Void*");
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 (
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))
}
}
+ 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;
// 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
//
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;
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_qualifier_type) &&
+ (closure_qualifier_type != null) &&
+ closure_invocation_type.IsSubclassOf (closure_qualifier_type))
+ return false;
+
return true;
}
// 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;
}
//
// 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 (invocation_type.IsSubclassOf (current_type))
- private_ok = true;
-
- if (private_ok)
- 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 = (bf & BindingFlags.NonPublic) != 0;
closure_queried_type = current_type;
Timer.StopTimer (TimerType.MemberLookup);
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;
}
projects / mono.git / blobdiff