ccc: Implement special language recognition handling for -.
- <rdar://problem/6551577> [ccc] require -x with -
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63901 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/ccc/ccclib/Driver.py b/tools/ccc/ccclib/Driver.py
index 30e2ae7..9387c37 100644
--- a/tools/ccc/ccclib/Driver.py
+++ b/tools/ccc/ccclib/Driver.py
@@ -374,27 +374,35 @@
inputValue = args.getValue(a)
if inputType is None:
base,ext = os.path.splitext(inputValue)
- if ext and ext in Types.kTypeSuffixMap:
+ # stdin is handled specially.
+ if inputValue == '-':
+ if args.getLastArg(self.parser.EOption):
+ # Treat as a C input needing preprocessing
+ # (or Obj-C if over-ridden below).
+ klass = Types.CType
+ else:
+ raise Arguments.InvalidArgumentsError("-E or -x required when input is from standard input")
+ elif ext and ext in Types.kTypeSuffixMap:
klass = Types.kTypeSuffixMap[ext]
-
- # -ObjC and -ObjC++ over-ride the default
- # language, but only for "source files". We
- # just treat everything that isn't a linker
- # input as a source file.
- #
- # FIXME: Clean this up if we move the phase
- # sequence into the type.
- if klass is not Types.ObjectType:
- if args.getLastArg(self.parser.ObjCOption):
- klass = Types.ObjCType
- elif args.getLastArg(self.parser.ObjCXXOption):
- klass = Types.ObjCType
else:
# FIXME: Its not clear why we shouldn't just
# revert to unknown. I think this is more likely a
# bug / unintended behavior in gcc. Not very
# important though.
klass = Types.ObjectType
+
+ # -ObjC and -ObjC++ over-ride the default
+ # language, but only for "source files". We
+ # just treat everything that isn't a linker
+ # input as a source file.
+ #
+ # FIXME: Clean this up if we move the phase
+ # sequence into the type.
+ if klass is not Types.ObjectType:
+ if args.getLastArg(self.parser.ObjCOption):
+ klass = Types.ObjCType
+ elif args.getLastArg(self.parser.ObjCXXOption):
+ klass = Types.ObjCType
else:
assert inputTypeOpt is not None
self.claim(inputTypeOpt)