Commit Graph

4 Commits

Author SHA1 Message Date
Reid Kleckner 062be331e2 Limit our MSVC compat hack for nested names from dependent bases
Previously, any undeclared unqualified id starting a nested name
specifier in a dependent context would have its lookup retried during
template instantiation.  Now we limit that retry hack to methods of a
class with dependent bases.  Free function templates in particular are
no longer affected by this hack.

Also, diagnose this as a Microsoft extension. This has the downside that
template authors may see this warning *and* an error during
instantiation time about this identifier. Fixing that will probably
require formalizing some kind of "delayed" identifier, instead of our
ad-hoc solutions of forming dependent AST nodes when lookup fails.

Based on a patch by Kim Gräsman!

Differential Revision: http://reviews.llvm.org/D4854

llvm-svn: 215683
2014-08-14 23:34:52 +00:00
Reid Kleckner 993e72a68e Use -fms-compatibility to trigger lookup into dep. bases
Update the docs for -fms-extensions and -fms-compatibility to try to
clarify the difference between the two.

llvm-svn: 191095
2013-09-20 17:04:25 +00:00
Andy Gibbs c6e68daac0 Prior to adding the new "expected-no-diagnostics" directive to VerifyDiagnosticConsumer, make the necessary adjustment to 580 test-cases which will henceforth require this new directive.
llvm-svn: 166280
2012-10-19 12:44:48 +00:00
Francois Pichet b23dc0950b In Microsoft mode, if we are within a templated function and we can't resolve Identifier during BuildCXXNestedNameSpecifier, then extend the SS with Identifier. This will have the effect of resolving Identifier during template instantiation. The goal is to be able to resolve a function call whose nested-name-specifier is located inside a dependent base class.
class C {
public:
    static void foo2() {  }
};

template <class T> class A {
public:
   typedef C D;
};

template <class T> class B : public A<T> {
public:
  void foo() { D::foo2(); }
};

Note that this won't work if the NestedNameSpecifier refers to a type.
This fixes 1 error when parsing the MSVC 2010 standard headers file with clang.

llvm-svn: 136203
2011-07-27 01:05:24 +00:00