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Implement FlagParser using llvm:🆑:generic_parser_base.

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This approach is easier and requires less code. With some template foo
the BoolOrDefaultAdapter is not required.

This solutions applies to previous LLVM versions, too.
This commit is contained in:
kai 2015-04-22 07:51:18 +02:00
parent cbb4d6d5b3
commit 4db0123bb7
5 changed files with 127 additions and 96 deletions
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33
gen/cl_helpers.cpp
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@ -18,39 +18,6 @@
namespace opts {
#if LDC_LLVM_VER < 307
bool FlagParser::parse(cl::Option &O, llvm::StringRef ArgName, llvm::StringRef Arg, bool &Val) {
// Make a std::string out of it to make comparisons easier
// (and avoid repeated conversion)
llvm::StringRef argname = ArgName;
typedef std::vector<std::pair<std::string, bool> >::iterator It;
for (It I = switches.begin(), E = switches.end(); I != E; ++I) {
llvm::StringRef name = I->first;
if (name == argname
|| (name.size() < argname.size()
&& argname.substr(0, name.size()) == name
&& argname[name.size()] == '=')) {
if (!cl::parser<bool>::parse(O, ArgName, Arg, Val)) {
Val = (Val == I->second);
return false;
}
// Invalid option value
break;
}
}
return true;
}
void FlagParser::getExtraOptionNames(llvm::SmallVectorImpl<const char*> &Names) {
typedef std::vector<std::pair<std::string, bool> >::iterator It;
for (It I = switches.begin() + 1, E = switches.end(); I != E; ++I) {
Names.push_back(I->first.data());
}
}
#endif
MultiSetter::MultiSetter(bool invert, bool* p, ...) {
this->invert = invert;
if (p) {