public static TypeSpec Resolve(ModuleContainer module, MemberKind kind, string ns, string name, int arity, bool reportErrors)
{
Namespace type_ns = module.GlobalRootNamespace.GetNamespace(ns, true);
var found = type_ns.GetAllTypes(name);
if (found == null)
{
if (reportErrors)
{
module.Compiler.Report.Error(518, "The predefined type `{0}.{1}' is not defined or imported", ns, name);
}
return(null);
}
TypeSpec best_match = null;
foreach (var candidate in found)
{
if (candidate.Kind != kind)
{
if (candidate.Kind == MemberKind.Struct && kind == MemberKind.Void && candidate.MemberDefinition is TypeContainer)
{
// Void is declared as struct but we keep it internally as
// special kind, the swap will be done by caller
}
else
{
continue;
}
}
if (candidate.Arity != arity)
{
continue;
}
if ((candidate.Modifiers & Modifiers.INTERNAL) != 0 && !candidate.MemberDefinition.IsInternalAsPublic(module.DeclaringAssembly))
{
continue;
}
if (best_match == null)
{
best_match = candidate;
continue;
}
var other_match = best_match;
if (!best_match.MemberDefinition.IsImported &&
module.Compiler.BuiltinTypes.Object.MemberDefinition.DeclaringAssembly == candidate.MemberDefinition.DeclaringAssembly)
{
best_match = candidate;
}
string location;
if (best_match.MemberDefinition is MemberCore)
{
location = ((MemberCore)best_match.MemberDefinition).Location.Name;
}
else
{
var assembly = (ImportedAssemblyDefinition)best_match.MemberDefinition.DeclaringAssembly;
location = Path.GetFileName(assembly.Location);
}
module.Compiler.Report.SymbolRelatedToPreviousError(other_match);
module.Compiler.Report.SymbolRelatedToPreviousError(candidate);
module.Compiler.Report.Warning(1685, 1,
"The predefined type `{0}.{1}' is defined multiple times. Using definition from `{2}'",
ns, name, location);
break;
}
if (best_match == null && reportErrors)
{
Location loc;
if (found[0].MemberDefinition is MemberCore)
{
loc = ((MemberCore)found[0].MemberDefinition).Location;
}
else
{
loc = Location.Null;
module.Compiler.Report.SymbolRelatedToPreviousError(found[0]);
}
module.Compiler.Report.Error(520, loc, "The predefined type `{0}.{1}' is not declared correctly", ns, name);
}
return(best_match);
}
public static TypeSpec Resolve (ModuleContainer module, MemberKind kind, string ns, string name, int arity, bool required, bool reportErrors)
{
//
// Cannot call it with true because it could create non-existent namespaces for
// predefined types. It's set to true only for build-in types which all must
// exist therefore it does not matter, for predefined types we don't want to create
// fake namespaces when type is optional and does not exist (e.g. System.Linq).
//
Namespace type_ns = module.GlobalRootNamespace.GetNamespace (ns, required);
IList<TypeSpec> found = null;
if (type_ns != null)
found = type_ns.GetAllTypes (name);
if (found == null) {
if (reportErrors)
module.Compiler.Report.Error (518, "The predefined type `{0}.{1}' is not defined or imported", ns, name);
return null;
}
TypeSpec best_match = null;
foreach (var candidate in found) {
if (candidate.Kind != kind) {
if (candidate.Kind == MemberKind.Struct && kind == MemberKind.Void && candidate.MemberDefinition is TypeContainer) {
// Void is declared as struct but we keep it internally as
// special kind, the swap will be done by caller
} else {
continue;
}
}
if (candidate.Arity != arity)
continue;
if ((candidate.Modifiers & Modifiers.INTERNAL) != 0 && !candidate.MemberDefinition.IsInternalAsPublic (module.DeclaringAssembly))
continue;
if (best_match == null) {
best_match = candidate;
continue;
}
var other_match = best_match;
if (!best_match.MemberDefinition.IsImported &&
module.Compiler.BuiltinTypes.Object.MemberDefinition.DeclaringAssembly == candidate.MemberDefinition.DeclaringAssembly) {
best_match = candidate;
}
string location;
if (best_match.MemberDefinition is MemberCore) {
location = ((MemberCore) best_match.MemberDefinition).Location.Name;
} else {
var assembly = (ImportedAssemblyDefinition) best_match.MemberDefinition.DeclaringAssembly;
location = Path.GetFileName (assembly.Location);
}
module.Compiler.Report.SymbolRelatedToPreviousError (other_match);
module.Compiler.Report.SymbolRelatedToPreviousError (candidate);
module.Compiler.Report.Warning (1685, 1,
"The predefined type `{0}.{1}' is defined multiple times. Using definition from `{2}'",
ns, name, location);
break;
}
if (best_match == null && reportErrors) {
var found_member = found[0];
if (found_member.Kind == MemberKind.MissingType) {
// CSC: should be different error number
module.Compiler.Report.Error (518, "The predefined type `{0}.{1}' is defined in an assembly that is not referenced.", ns, name);
} else {
Location loc;
if (found_member.MemberDefinition is MemberCore) {
loc = ((MemberCore) found_member.MemberDefinition).Location;
} else {
loc = Location.Null;
module.Compiler.Report.SymbolRelatedToPreviousError (found_member);
}
module.Compiler.Report.Error (520, loc, "The predefined type `{0}.{1}' is not declared correctly", ns, name);
}
}
return best_match;
}