Store a parameter index and function prototype depth in every
parameter node and use this to correctly mangle parameter
references in function template signatures.
A follow-up patch will improve the storage usage of these
fields; here I've just done the lazy thing.
llvm-svn: 130669
diff --git a/clang/lib/Sema/Scope.cpp b/clang/lib/Sema/Scope.cpp
new file mode 100644
index 0000000..833a59f
--- /dev/null
+++ b/clang/lib/Sema/Scope.cpp
@@ -0,0 +1,57 @@
+//===- Scope.cpp - Lexical scope information --------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Scope class, which is used for recording
+// information about a lexical scope.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Sema/Scope.h"
+
+using namespace clang;
+
+void Scope::Init(Scope *parent, unsigned flags) {
+ AnyParent = parent;
+ Flags = flags;
+
+ if (parent) {
+ Depth = parent->Depth + 1;
+ PrototypeDepth = parent->PrototypeDepth;
+ PrototypeIndex = 0;
+ FnParent = parent->FnParent;
+ BreakParent = parent->BreakParent;
+ ContinueParent = parent->ContinueParent;
+ ControlParent = parent->ControlParent;
+ BlockParent = parent->BlockParent;
+ TemplateParamParent = parent->TemplateParamParent;
+ } else {
+ Depth = 0;
+ PrototypeDepth = 0;
+ PrototypeIndex = 0;
+ FnParent = BreakParent = ContinueParent = BlockParent = 0;
+ ControlParent = 0;
+ TemplateParamParent = 0;
+ }
+
+ // If this scope is a function or contains breaks/continues, remember it.
+ if (flags & FnScope) FnParent = this;
+ if (flags & BreakScope) BreakParent = this;
+ if (flags & ContinueScope) ContinueParent = this;
+ if (flags & ControlScope) ControlParent = this;
+ if (flags & BlockScope) BlockParent = this;
+ if (flags & TemplateParamScope) TemplateParamParent = this;
+
+ // If this is a prototype scope, record that.
+ if (flags & FunctionPrototypeScope) PrototypeDepth++;
+
+ DeclsInScope.clear();
+ UsingDirectives.clear();
+ Entity = 0;
+ ErrorTrap.reset();
+}