929fccd476
Each option has a set of prefixes. When matching an argument such as -funroll-loops. First the leading - is removed as it is a prefix. Then a lower_bound search for "funroll-loops" is done against the option table by option name. From there each option prefix + option name combination is tested against the argument. This allows us to support Microsoft style options where both / and - are valid prefixes. It also simplifies the cases we already have where options come in both - and -- forms. Almost every option for gnu-ld happens to have this form. llvm-svn: 166444
46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
//===--- DriverOptions.cpp - Driver Options Table -------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Driver/Options.h"
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#include "clang/Driver/OptTable.h"
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#include "clang/Driver/Option.h"
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using namespace clang::driver;
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using namespace clang::driver::options;
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#define PREFIX(NAME, VALUE) const char *const NAME[] = VALUE;
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#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, FLAGS, PARAM, \
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HELPTEXT, METAVAR)
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#include "clang/Driver/Options.inc"
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#undef OPTION
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#undef PREFIX
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static const OptTable::Info InfoTable[] = {
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#define PREFIX(NAME, VALUE)
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#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, FLAGS, PARAM, \
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HELPTEXT, METAVAR) \
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{ PREFIX, NAME, HELPTEXT, METAVAR, OPT_##ID, Option::KIND##Class, PARAM, \
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FLAGS, OPT_##GROUP, OPT_##ALIAS },
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#include "clang/Driver/Options.inc"
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};
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namespace {
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class DriverOptTable : public OptTable {
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public:
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DriverOptTable()
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: OptTable(InfoTable, sizeof(InfoTable) / sizeof(InfoTable[0])) {}
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};
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}
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OptTable *clang::driver::createDriverOptTable() {
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return new DriverOptTable();
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}
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