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Add support for a character after a command line option. Like '-Os'.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70437 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2009-04-29 23:26:16 +00:00
parent 22523ad737
commit b587f9662a
2 changed files with 26 additions and 0 deletions
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23
include/llvm/Support/CommandLine.h
View File

@ -679,6 +679,28 @@ public:
EXTERN_TEMPLATE_INSTANTIATION(class basic_parser<std::string>);
//--------------------------------------------------
// parser<char>
//
template<>
class parser<char> : public basic_parser<char> {
public:
// parse - Return true on error.
bool parse(Option &, const char *, const std::string &Arg,
char &Value) {
Value = Arg[0];
return false;
}
// getValueName - Overload in subclass to provide a better default value.
virtual const char *getValueName() const { return "char"; }
// An out-of-line virtual method to provide a 'home' for this class.
virtual void anchor();
};
EXTERN_TEMPLATE_INSTANTIATION(class basic_parser<char>);
//===----------------------------------------------------------------------===//
// applicator class - This class is used because we must use partial
// specialization to handle literal string arguments specially (const char* does
@ -923,6 +945,7 @@ public:
EXTERN_TEMPLATE_INSTANTIATION(class opt<unsigned>);
EXTERN_TEMPLATE_INSTANTIATION(class opt<int>);
EXTERN_TEMPLATE_INSTANTIATION(class opt<std::string>);
EXTERN_TEMPLATE_INSTANTIATION(class opt<char>);
EXTERN_TEMPLATE_INSTANTIATION(class opt<bool>);
//===----------------------------------------------------------------------===//

3
lib/Support/CommandLine.cpp
View File

@ -45,10 +45,12 @@ TEMPLATE_INSTANTIATION(class basic_parser<unsigned>);
TEMPLATE_INSTANTIATION(class basic_parser<double>);
TEMPLATE_INSTANTIATION(class basic_parser<float>);
TEMPLATE_INSTANTIATION(class basic_parser<std::string>);
TEMPLATE_INSTANTIATION(class basic_parser<char>);
TEMPLATE_INSTANTIATION(class opt<unsigned>);
TEMPLATE_INSTANTIATION(class opt<int>);
TEMPLATE_INSTANTIATION(class opt<std::string>);
TEMPLATE_INSTANTIATION(class opt<char>);
TEMPLATE_INSTANTIATION(class opt<bool>);
void Option::anchor() {}
@ -60,6 +62,7 @@ void parser<unsigned>::anchor() {}
void parser<double>::anchor() {}
void parser<float>::anchor() {}
void parser<std::string>::anchor() {}
void parser<char>::anchor() {}
//===----------------------------------------------------------------------===//