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Option parsing: allow aliases in groups

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Option aliases in option groups were previously disallowed by an assert.
As far as I can tell, there was no technical reason for this, and I would
like to be able to put cl.exe compatible options in their own group for Clang,
so let's change the assert.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186838 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hans Wennborg 2013-07-22 16:18:13 +00:00
parent 0226538292
commit 6c7e78746e
3 changed files with 16 additions and 6 deletions
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10
lib/Option/Option.cpp
View File

@ -22,12 +22,10 @@ using namespace llvm::opt;
Option::Option(const OptTable::Info *info, const OptTable *owner)
: Info(info), Owner(owner) {
// Multi-level aliases are not supported, and alias options cannot
// have groups. This just simplifies option tracking, it is not an
// inherent limitation.
assert((!Info || !getAlias().isValid() || (!getAlias().getAlias().isValid() &&
!getGroup().isValid())) &&
"Multi-level aliases and aliases with groups are unsupported.");
// Multi-level aliases are not supported. This just simplifies option
// tracking, it is not an inherent limitation.
assert(!Info || !getAlias().isValid() || !getAlias().getAlias().isValid() &&
"Multi-level aliases are not supported.");
}
Option::~Option() {

9
unittests/Option/OptionParsingTest.cpp
View File

@ -136,3 +136,12 @@ TEST(Option, ParseWithFlagExclusions) {
EXPECT_EQ(AL->getLastArgValue(OPT_SLASH_C), "foo");
EXPECT_EQ(AL->getLastArgValue(OPT_C), "bar");
}
TEST(Option, ParseAliasInGroup) {
TestOptTable T;
unsigned MAI, MAC;
const char *MyArgs[] = { "-I" };
OwningPtr<InputArgList> AL(T.ParseArgs(MyArgs, array_endof(MyArgs), MAI, MAC));
EXPECT_TRUE(AL->hasArg(OPT_H));
}

3
unittests/Option/Opts.td
View File

@ -16,3 +16,6 @@ def G : JoinedAndSeparate<["-"], "G">, HelpText<"The G option">, MetaVarName<"G"
def Ceq : Joined<["-", "--"], "C=">, Alias<C>, Flags<[OptFlag1]>;
def H : Flag<["-"], "H">, Flags<[HelpHidden]>;
def my_group : OptionGroup<"my group">;
def I : Flag<["-"], "I">, Alias<H>, Group<my_group>;