From: Eli Friedman Date: Tue, 27 May 2008 15:24:04 +0000 (+0000) Subject: Assume statement expressions have side effects; this gets rid of a lot X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=211f6adf1301a1461015fb6cb08a05f0a35b65f3;p=clang Assume statement expressions have side effects; this gets rid of a lot of extra warnings in the Python source. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51594 91177308-0d34-0410-b5e6-96231b3b80d8 --- diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp index e21686cf4e..d26ad1025d 100644 --- a/lib/AST/Expr.cpp +++ b/lib/AST/Expr.cpp @@ -319,14 +319,17 @@ bool Expr::hasLocalSideEffect() const { // If the base pointer or element is to a volatile pointer/field, accessing // if is a side effect. return getType().isVolatileQualified(); - + case CallExprClass: // TODO: check attributes for pure/const. "void foo() { strlen("bar"); }" // should warn. return true; case ObjCMessageExprClass: return true; - + case StmtExprClass: + // TODO: check the inside of the statement expression + return true; + case CastExprClass: // If this is a cast to void, check the operand. Otherwise, the result of // the cast is unused.