public static void DefineRootNamespace (string name, Assembly assembly)
{
if (name == "global") {
- // FIXME: Add proper error number
- Report.Error (-42, "Cannot define an external alias named `global'");
+ NamespaceEntry.Error_GlobalNamespaceRedefined (Location.Null);
return;
}
RootNamespace retval = GetRootNamespace (name);
GetNamespace (dotted_name, true);
}
- protected void ComputeNamespaces (Assembly assembly)
- {
- if (get_namespaces_method != null) {
- string [] namespaces = (string []) get_namespaces_method.Invoke (assembly, null);
- foreach (string ns in namespaces)
- RegisterNamespace (ns);
- return;
- }
+ void RegisterExtensionMethodClass (Type t)
+ {
+ string n = t.Namespace;
+ Namespace ns = n == null ? Global : (Namespace)all_namespaces [n];
+ if (ns == null)
+ ns = GetNamespace (n, true);
+
+ ns.RegisterExternalExtensionMethodClass (t);
+ }
+
+ protected void ComputeNamespaces (Assembly assembly)
+ {
+ // How to test whether attribute exists without loading the assembly :-(
+#if NET_2_1
+ const string SystemCore = "System.Core, Version=2.1.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089";
+#else
+ const string SystemCore = "System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089";
+#endif
+ if (TypeManager.extension_attribute_type == null &&
+ assembly.FullName == SystemCore) {
+ TypeManager.extension_attribute_type = assembly.GetType("System.Runtime.CompilerServices.ExtensionAttribute");
+ }
+
+ bool contains_extension_methods = TypeManager.extension_attribute_type != null &&
+ assembly.IsDefined(TypeManager.extension_attribute_type, false);
+
+ if (get_namespaces_method != null && !contains_extension_methods) {
+ string [] namespaces = (string []) get_namespaces_method.Invoke (assembly, null);
+ foreach (string ns in namespaces)
+ RegisterNamespace (ns);
+ return;
+ }
+
+ foreach (Type t in assembly.GetExportedTypes ()) {
+ if ((t.Attributes & Class.StaticClassAttribute) == Class.StaticClassAttribute &&
+ contains_extension_methods && t.IsDefined (TypeManager.extension_attribute_type, false))
+ RegisterExtensionMethodClass (t);
+ else
+ RegisterNamespace (t.Namespace);
+ }
+ }
- foreach (Type t in assembly.GetExportedTypes ())
- RegisterNamespace (t.Namespace);
- }
-
protected static Type GetTypeInAssembly (Assembly assembly, string name)
{
Type t = assembly.GetType (name);
IDictionary declspaces;
Hashtable cached_types;
RootNamespace root;
+ ArrayList external_exmethod_classes;
public readonly MemberName MemberName;
if (name.IndexOf ('`') > 0) {
FullNamedExpression retval = Lookup (ds, SimpleName.RemoveGenericArity (name), loc);
if (retval != null) {
- Error_TypeArgumentsCannotBeUsed (retval.Type, loc, "type");
+ Error_TypeArgumentsCannotBeUsed (retval.Type, loc);
return;
}
} else {
TypeManager.CSharpName(t), TypeManager.GetNumberOfTypeArguments(t).ToString());
}
- public static void Error_TypeArgumentsCannotBeUsed(Type t, Location loc, string symbol)
+ public static void Error_TypeArgumentsCannotBeUsed (Type t, Location loc)
+ {
+ Report.SymbolRelatedToPreviousError (t);
+ Error_TypeArgumentsCannotBeUsed (loc, "type", TypeManager.CSharpName (t));
+ }
+
+ public static void Error_TypeArgumentsCannotBeUsed (MethodBase mi, Location loc)
{
- Report.SymbolRelatedToPreviousError(t);
- Report.Error(308, loc, "The non-generic {0} `{1}' cannot be used with the type argument(s)",
- symbol, TypeManager.CSharpName(t));
+ Report.SymbolRelatedToPreviousError (mi);
+ Error_TypeArgumentsCannotBeUsed (loc, "method", TypeManager.CSharpSignature (mi));
+ }
+
+ static void Error_TypeArgumentsCannotBeUsed (Location loc, string type, string name)
+ {
+ Report.Error(308, loc, "The non-generic {0} `{1}' cannot be used with the type arguments",
+ type, name);
}
public override void Emit (EmitContext ec)
if (namespaces.Contains (name))
return (Namespace) namespaces [name];
- TypeExpr te = LookupType (name, loc);
- if (te == null || !ds.CheckAccessLevel (te.Type))
- return null;
+ return LookupType (name, loc);
+ }
- return te;
+ public void RegisterExternalExtensionMethodClass (Type type)
+ {
+ if (external_exmethod_classes == null)
+ external_exmethod_classes = new ArrayList ();
+
+ external_exmethod_classes.Add (type);
+ }
+
+ ///
+ /// Looks for extension method in this namespace
+ ///
+ public ArrayList LookupExtensionMethod (Type extensionType, ClassOrStruct currentClass, string name, NamespaceEntry ns)
+ {
+ ArrayList found = null;
+
+ if (declspaces != null) {
+ IEnumerator e = declspaces.Values.GetEnumerator ();
+ e.Reset ();
+ while (e.MoveNext ()) {
+ Class c = e.Current as Class;
+ if (c == null)
+ continue;
+
+ if (!c.IsStaticClass)
+ continue;
+
+ ArrayList res = c.MemberCache.FindExtensionMethods (extensionType, name, c != currentClass);
+ if (res == null)
+ continue;
+
+ if (found == null)
+ found = res;
+ else
+ found.AddRange (res);
+ }
+ }
+
+ if (external_exmethod_classes == null)
+ return found;
+
+ foreach (Type t in external_exmethod_classes) {
+ MemberCache m = TypeHandle.GetMemberCache (t);
+ ArrayList res = m.FindExtensionMethods (extensionType, name, true);
+ if (res == null)
+ continue;
+
+ if (found == null)
+ found = res;
+ else
+ found.AddRange (res);
+ }
+
+ return found;
}
public void AddDeclSpace (string name, DeclSpace ds)
if (resolved == null) {
Report.SymbolRelatedToPreviousError (fne.Type);
Report.Error (138, Location,
- "`{0}' is a type not a namespace. A using namespace directive can only be applied to namespaces", Name.ToString ());
+ "`{0}' is a type not a namespace. A using namespace directive can only be applied to namespaces", Name.GetSignatureForError ());
}
return resolved;
}
return;
}
- if (RootContext.Version == LanguageVersion.Default &&
- name == "global" && RootContext.WarningLevel >= 2)
+ if (RootContext.Version != LanguageVersion.ISO_1 && name == "global")
Report.Warning (440, 2, loc, "An alias named `global' will not be used when resolving 'global::';" +
" the global namespace will be used instead");
}
if (name == "global") {
- Report.Error (1681, loc, "You cannot redefine the global extern alias");
+ Error_GlobalNamespaceRedefined (loc);
return;
}
extern_aliases [name] = alias;
}
+ ///
+ /// Does extension methods look up to find a method which matches name and extensionType.
+ /// Search starts from this namespace and continues hierarchically up to top level.
+ ///
+ public ExtensionMethodGroupExpr LookupExtensionMethod (Type extensionType, ClassOrStruct currentClass, string name)
+ {
+ ArrayList candidates = null;
+ if (currentClass != null) {
+ candidates = ns.LookupExtensionMethod (extensionType, currentClass, name, this);
+ if (candidates != null)
+ return new ExtensionMethodGroupExpr (candidates, this, extensionType, Location.Null);
+ }
+
+ foreach (Namespace n in GetUsingTable ()) {
+ ArrayList a = n.LookupExtensionMethod (extensionType, null, name, this);
+ if (a == null)
+ continue;
+
+ if (candidates == null)
+ candidates = a;
+ else
+ candidates.AddRange (a);
+ }
+
+ if (candidates != null)
+ return new ExtensionMethodGroupExpr (candidates, parent, extensionType, Location.Null);
+
+ if (parent == null)
+ return null;
+
+ return parent.LookupExtensionMethod (extensionType, currentClass, name);
+ }
+
public FullNamedExpression LookupNamespaceOrType (DeclSpace ds, string name, Location loc, bool ignore_cs0104)
{
// Precondition: Only simple names (no dots) will be looked up with this function.
static void Error_AmbiguousTypeReference (Location loc, string name, FullNamedExpression t1, FullNamedExpression t2)
{
+ Report.SymbolRelatedToPreviousError (t1.Type);
+ Report.SymbolRelatedToPreviousError (t2.Type);
Report.Error (104, loc, "`{0}' is an ambiguous reference between `{1}' and `{2}'",
name, t1.FullName, t2.FullName);
}
Console.WriteLine (" Try using -pkg:" + s);
}
+ public static void Error_GlobalNamespaceRedefined (Location loc)
+ {
+ Report.Error (1681, loc, "You cannot redefine the global extern alias");
+ }
+
public static void Error_NamespaceNotFound (Location loc, string name)
{
Report.Error (246, loc, "The type or namespace name `{0}' could not be found. Are you missing a using directive or an assembly reference?",
projects / mono.git / blobdiff