Keep track of when declarations are "used" according to C and
C++. This logic is required to trigger implicit instantiation of
function templates and member functions of class templates, which will
be implemented separately.
This commit includes support for -Wunused-parameter, printing warnings
for named parameters that are not used within a function/Objective-C
method/block. Fixes <rdar://problem/6505209>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73797 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index efabf3a..6915252 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -2699,8 +2699,12 @@
// things like '=' and '*='. Sema rejects these in C89 mode because they
// are not i-c-e's, so we don't need to distinguish between the two here.
- // Parse the assignment-expression now.
- NumElements = ParseAssignmentExpression();
+ // Parse the constant-expression or assignment-expression now (depending
+ // on dialect).
+ if (getLang().CPlusPlus)
+ NumElements = ParseConstantExpression();
+ else
+ NumElements = ParseAssignmentExpression();
}
// If there was an error parsing the assignment-expression, recover.