Driver: Start warning about unused arguments.
- This has a number of current flaws, enabling now to flush out
problems while bringing up other parts.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67015 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index 2aa5018..d399358 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -171,7 +171,21 @@
return 0;
}
- return BuildJobs(*Args, Actions);
+ Compilation *C = BuildJobs(*Args, Actions);
+
+ // If there were no errors, warn about any unused arguments.
+ for (ArgList::iterator it = Args->begin(), ie = Args->end(); it != ie; ++it) {
+ Arg *A = *it;
+
+ // FIXME: It would be nice to be able to send the argument to the
+ // Diagnostic, so that extra values, position, and so on could be
+ // printed.
+ if (!A->isClaimed())
+ Diag(clang::diag::warn_drv_unused_argument)
+ << A->getOption().getName();
+ }
+
+ return C;
}
void Driver::PrintOptions(const ArgList &Args) const {
@@ -563,7 +577,6 @@
Compilation *Driver::BuildJobs(const ArgList &Args,
const ActionList &Actions) const {
- assert(0 && "FIXME: Implement");
return 0;
}