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);
return all_namespaces.Contains (name);
}
- protected void EnsureNamespace (string dotted_name)
+ protected void RegisterNamespace (string dotted_name)
{
if (dotted_name != null && dotted_name.Length != 0 && ! IsNamespace (dotted_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)
- EnsureNamespace (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 :-(
+ const string SystemCore = "System.Core, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089";
+ 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 ())
- EnsureNamespace (t.Namespace);
- }
-
protected static Type GetTypeInAssembly (Assembly assembly, string name)
{
Type t = assembly.GetType (name);
return;
foreach (Type t in m.GetTypes ())
- EnsureNamespace (t.Namespace);
+ RegisterNamespace (t.Namespace);
}
- public override void Error_NamespaceDoesNotExist(Location loc, string name)
+ public override void Error_NamespaceDoesNotExist(DeclSpace ds, Location loc, string name)
{
Report.Error (400, loc, "The type or namespace name `{0}' could not be found in the global namespace (are you missing an assembly reference?)",
name);
found_type = t;
continue;
}
-
- Report.SymbolRelatedToPreviousError (t);
+
Report.SymbolRelatedToPreviousError (found_type);
- Report.Warning (436, 2, loc, "Ignoring imported type `{0}' since the current assembly already has a declaration with the same name",
- TypeManager.CSharpName (t));
+ if (loc.IsNull) {
+ DeclSpace ds = TypeManager.LookupDeclSpace (t);
+ Report.Warning (1685, 1, ds.Location, "The type `{0}' conflicts with the predefined type `{1}' and will be ignored",
+ ds.GetSignatureForError (), TypeManager.CSharpName (found_type));
+ return found_type;
+ }
+ Report.SymbolRelatedToPreviousError (t);
+ Report.Warning (436, 2, loc, "The type `{0}' conflicts with the imported type `{1}'. Ignoring the imported type definition",
+ TypeManager.CSharpName (t), TypeManager.CSharpName (found_type));
return t;
}
}
Namespace parent;
string fullname;
- Hashtable namespaces;
+ IDictionary namespaces;
IDictionary declspaces;
Hashtable cached_types;
RootNamespace root;
+ ArrayList external_exmethod_classes;
public readonly MemberName MemberName;
{
// Expression members.
this.eclass = ExprClass.Namespace;
- this.Type = null;
+ this.Type = typeof (Namespace);
this.loc = Location.Null;
this.parent = parent;
else
MemberName = new MemberName (name);
- namespaces = new Hashtable ();
+ namespaces = new HybridDictionary ();
cached_types = new Hashtable ();
root.RegisterNamespace (this);
return this;
}
- public virtual void Error_NamespaceDoesNotExist (Location loc, string name)
+ public virtual void Error_NamespaceDoesNotExist (DeclSpace ds, Location loc, string name)
{
+ if (name.IndexOf ('`') > 0) {
+ FullNamedExpression retval = Lookup (ds, SimpleName.RemoveGenericArity (name), loc);
+ if (retval != null) {
+ Error_TypeArgumentsCannotBeUsed (retval.Type, loc, "type");
+ return;
+ }
+ } else {
+ Type t = LookForAnyGenericType (name);
+ if (t != null) {
+ Error_InvalidNumberOfTypeArguments (t, loc);
+ return;
+ }
+ }
+
Report.Error (234, loc, "The type or namespace name `{0}' does not exist in the namespace `{1}'. Are you missing an assembly reference?",
name, FullName);
}
+ public static void Error_InvalidNumberOfTypeArguments (Type t, Location loc)
+ {
+ Report.SymbolRelatedToPreviousError (t);
+ Report.Error (305, loc, "Using the generic type `{0}' requires `{1}' type argument(s)",
+ TypeManager.CSharpName(t), TypeManager.GetNumberOfTypeArguments(t).ToString());
+ }
+
+ public static void Error_TypeArgumentsCannotBeUsed(Type t, Location loc, string symbol)
+ {
+ Report.SymbolRelatedToPreviousError(t);
+ Report.Error(308, loc, "The non-generic {0} `{1}' cannot be used with the type argument(s)",
+ symbol, TypeManager.CSharpName(t));
+ }
+
public override void Emit (EmitContext ec)
{
throw new InternalErrorException ("Expression tree referenced namespace " + fullname + " during Emit ()");
}
string lookup = t != null ? t.FullName : (fullname.Length == 0 ? name : fullname + "." + name);
Type rt = root.LookupTypeReflection (lookup, loc);
- if (t == null)
+
+ // HACK: loc.IsNull when the type is core type
+ if (t == null || (rt != null && loc.IsNull))
t = rt;
TypeExpr te = t == null ? null : new TypeExpression (t, Location.Null);
return te;
}
+ ///
+ /// Used for better error reporting only
+ ///
+ public Type LookForAnyGenericType (string typeName)
+ {
+ if (declspaces == null)
+ return null;
+
+ typeName = SimpleName.RemoveGenericArity (typeName);
+
+ foreach (DictionaryEntry de in declspaces) {
+ string type_item = (string) de.Key;
+ int pos = type_item.LastIndexOf ('`');
+ if (pos == typeName.Length && String.Compare (typeName, 0, type_item, 0, pos) == 0)
+ return ((DeclSpace) de.Value).TypeBuilder;
+ }
+ return null;
+ }
+
public FullNamedExpression Lookup (DeclSpace ds, string name, Location loc)
{
if (namespaces.Contains (name))
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, string name, NamespaceEntry ns)
+ {
+ if (declspaces == null)
+ return null;
+
+ ArrayList found = 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);
+ 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);
+ if (found == null)
+ found = res;
+ else
+ found.AddRange (res);
+ }
+
+ return found;
+ }
+
public void AddDeclSpace (string name, DeclSpace ds)
{
if (declspaces == null)
//
public class UsingEntry : IResolveContext {
public readonly MemberName Name;
- readonly Expression Expr;
readonly NamespaceEntry NamespaceEntry;
readonly Location Location;
public UsingEntry (NamespaceEntry entry, MemberName name, Location loc)
{
Name = name;
- Expr = name.GetTypeExpression ();
NamespaceEntry = entry;
Location = loc;
}
if (resolved != null)
return resolved;
- FullNamedExpression fne = Expr.ResolveAsTypeStep (this, false);
+ FullNamedExpression fne = Name.GetTypeExpression ().ResolveAsTypeStep (this, false);
if (fne == null) {
Error_NamespaceNotFound (Location, Name.ToString ());
return null;
resolved = fne as Namespace;
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.ToString ());
}
return resolved;
}
}
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, bool fullLookup, string name)
+ {
+ ArrayList candidates = null;
+ if (fullLookup) {
+ candidates = ns.LookupExtensionMethod (extensionType, name, this);
+ if (candidates != null)
+ return new ExtensionMethodGroupExpr (candidates, this, false, extensionType, Location.Null);
+ }
+
+ foreach (Namespace n in GetUsingTable ()) {
+ ArrayList a = n.LookupExtensionMethod (extensionType, name, this);
+ if (a == null)
+ continue;
+
+ if (candidates == null)
+ candidates = a;
+ else
+ candidates.AddRange (a);
+ }
+
+ if (candidates != null)
+ return new ExtensionMethodGroupExpr (candidates, parent, true, extensionType, Location.Null);
+
+ if (parent == null)
+ return null;
+
+ return parent.LookupExtensionMethod (extensionType, true, 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.
//
// Check whether it's in the namespace.
//
- FullNamedExpression fne = NS.Lookup (ds, name, loc);
+ FullNamedExpression fne = ns.Lookup (ds, name, loc);
if (fne != null)
return fne;
}
// Our cached computation.
- readonly Namespace [] empty_namespaces = new Namespace [0];
+ static readonly Namespace [] empty_namespaces = new Namespace [0];
Namespace [] namespace_using_table;
Namespace [] GetUsingTable ()
{
return namespace_using_table;
}
- readonly string [] empty_using_list = new string [0];
+ static readonly string [] empty_using_list = new string [0];
public int SymbolFileID {
get {
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