diff options
| -rw-r--r-- | lib/Sema/SemaDecl.cpp | 5 | ||||
| -rw-r--r-- | test/SemaCXX/warn-unused-variables.cpp | 8 |
2 files changed, 13 insertions, 0 deletions
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp index 3f309bb6ad..d9696d9ed5 100644 --- a/lib/Sema/SemaDecl.cpp +++ b/lib/Sema/SemaDecl.cpp @@ -543,6 +543,11 @@ static bool ShouldDiagnoseUnusedDecl(const NamedDecl *D) { return false; } + // If we failed to complete the type for some reason, don't + // diagnose the variable. + if (Ty->isIncompleteType()) + return false; + if (const TagType *TT = Ty->getAs<TagType>()) { const TagDecl *Tag = TT->getDecl(); if (Tag->hasAttr<UnusedAttr>()) diff --git a/test/SemaCXX/warn-unused-variables.cpp b/test/SemaCXX/warn-unused-variables.cpp index 3b5349a5ce..5ef7e7002f 100644 --- a/test/SemaCXX/warn-unused-variables.cpp +++ b/test/SemaCXX/warn-unused-variables.cpp @@ -51,3 +51,11 @@ void test_dependent_init(T *p) { X0<int> i(p); (void)i; } + +namespace PR6948 { + template<typename T> class X; + + void f() { + X<char> str (read_from_file()); // expected-error{{use of undeclared identifier 'read_from_file'}} + } +} |