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ccc: Implement special language recognition handling for -. 

- <rdar://problem/6551577> [ccc] require -x with -

llvm-svn: 63901
This commit is contained in:
Daniel Dunbar 2009-02-05 23:44:44 +00:00
parent 98a3617fba
commit 724167c280
2 changed files with 32 additions and 14 deletions
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36
clang/tools/ccc/ccclib/Driver.py
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@ -374,27 +374,35 @@ class Driver(object):
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)

10
clang/tools/ccc/test/ccc/stdin.c Normal file
View File

@ -0,0 +1,10 @@
// RUN: not xcc -### - &> %t &&
// RUN: grep 'E or -x required when input is from standard input' %t &&
// RUN: xcc -ccc-print-phases -### -E - &> %t &&
// RUN: grep '1: preprocessor.*, {0}, cpp-output' %t &&
// RUN: xcc -ccc-print-phases -### -ObjC -E - &> %t &&
// RUN: grep '1: preprocessor.*, {0}, objective-c-cpp-output' %t &&
// RUN: xcc -ccc-print-phases -### -ObjC -x c -E - &> %t &&
// RUN: grep '1: preprocessor.*, {0}, cpp-output' %t &&
// RUN: true