|
public LookupExtensionMethod ( System.TypeSpec extensionType, |
||
| extensionType | System.TypeSpec | |
| invocationContext | ||
| name | string | |
| arity | int | |
| return | List |
|
//
// 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 IList <MethodSpec> LookupExtensionMethod(TypeSpec extensionType, string name, int arity, ref NamespaceContainer scope)
{
List <MethodSpec> candidates = null;
foreach (Namespace n in GetUsingTable())
{
var a = n.LookupExtensionMethod(this, extensionType, name, arity);
if (a == null)
{
continue;
}
if (candidates == null)
{
candidates = a;
}
else
{
candidates.AddRange(a);
}
}
scope = parent;
if (candidates != null)
{
return(candidates);
}
if (parent == null)
{
return(null);
}
//
// Inspect parent namespaces in namespace expression
//
Namespace parent_ns = ns.Parent;
do
{
candidates = parent_ns.LookupExtensionMethod(this, extensionType, name, arity);
if (candidates != null)
{
return(candidates);
}
parent_ns = parent_ns.Parent;
} while (parent_ns != null);
//
// Continue in parent scope
//
return(parent.LookupExtensionMethod(extensionType, name, arity, ref scope));
}
//
// Extension methods look up for dotted namespace names
//
public IList <MethodSpec> LookupExtensionMethod(IMemberContext invocationContext, TypeSpec extensionType, string name, int arity, out Namespace scope)
{
//
// Inspect parent namespaces in namespace expression
//
scope = this;
do
{
var candidates = scope.LookupExtensionMethod(invocationContext, extensionType, name, arity);
if (candidates != null)
{
return(candidates);
}
scope = scope.Parent;
} while (scope != null);
return(null);
}
//
// Extension methods look up for dotted namespace names
//
public IList<MethodSpec> LookupExtensionMethod (IMemberContext invocationContext, TypeSpec extensionType, string name, int arity, out Namespace scope)
{
//
// Inspect parent namespaces in namespace expression
//
scope = this;
do {
var candidates = scope.LookupExtensionMethod (invocationContext, extensionType, name, arity);
if (candidates != null)
return candidates;
scope = scope.Parent;
} while (scope != null);
return null;
}
///
/// 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, Location loc)
{
ArrayList candidates = null;
if (currentClass != null)
{
candidates = ns.LookupExtensionMethod(extensionType, currentClass, name);
if (candidates != null)
{
return(new ExtensionMethodGroupExpr(candidates, this, extensionType, loc));
}
}
foreach (Namespace n in GetUsingTable())
{
ArrayList a = n.LookupExtensionMethod(extensionType, null, name);
if (a == null)
{
continue;
}
if (candidates == null)
{
candidates = a;
}
else
{
candidates.AddRange(a);
}
}
if (candidates != null)
{
return(new ExtensionMethodGroupExpr(candidates, parent, extensionType, loc));
}
if (parent == null)
{
return(null);
}
//
// Inspect parent namespaces in namespace expression
//
Namespace parent_ns = ns.Parent;
do
{
candidates = parent_ns.LookupExtensionMethod(extensionType, null, name);
if (candidates != null)
{
return(new ExtensionMethodGroupExpr(candidates, parent, extensionType, loc));
}
parent_ns = parent_ns.Parent;
} while (parent_ns != null);
//
// Continue in parent scope
//
return(parent.LookupExtensionMethod(extensionType, currentClass, name, loc));
}