Representation of template type parameters and non-type template
parameters, with some semantic analysis:
- Template parameters are introduced into template parameter scope
- Complain about template parameter shadowing (except in Microsoft mode)
Note that we leak template parameter declarations like crazy, a
problem we'll remedy once we actually create proper declarations for
templates.
Next up: dependent types and value-dependent/type-dependent
expressions.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60597 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index e4386ec..a3264b0 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -341,6 +341,12 @@
/// DeclCanBeLvalue - Determine whether the given declaration can be
/// an lvalue. This is a helper routine for isLvalue.
static bool DeclCanBeLvalue(const NamedDecl *Decl, ASTContext &Ctx) {
+ // C++ [temp.param]p6:
+ // A non-type non-reference template-parameter is not an lvalue.
+ if (const NonTypeTemplateParmDecl *NTTParm
+ = dyn_cast<NonTypeTemplateParmDecl>(Decl))
+ return NTTParm->getType()->isReferenceType();
+
return isa<VarDecl>(Decl) || isa<CXXFieldDecl>(Decl) ||
// C++ 3.10p2: An lvalue refers to an object or function.
(Ctx.getLangOptions().CPlusPlus &&