Driver: Add ArgList support for synthesizing arguments.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66805 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/ArgList.cpp b/lib/Driver/ArgList.cpp
index e29977f..87847c0 100644
--- a/lib/Driver/ArgList.cpp
+++ b/lib/Driver/ArgList.cpp
@@ -40,3 +40,39 @@
return 0;
}
+
+unsigned ArgList::MakeIndex(const char *String0) {
+ unsigned Index = ArgStrings.size();
+
+ // Tuck away so we have a reliable const char *.
+ SynthesizedStrings.push_back(String0);
+ ArgStrings.push_back(SynthesizedStrings.back().c_str());
+
+ return Index;
+}
+
+unsigned ArgList::MakeIndex(const char *String0, const char *String1) {
+ unsigned Index0 = MakeIndex(String0);
+ unsigned Index1 = MakeIndex(String1);
+ assert(Index0 == Index1 && "Unexpected non-consecutive indices!");
+ (void) Index1;
+ return Index0;
+}
+
+Arg *ArgList::MakeFlagArg(const Option *Opt) {
+ return new FlagArg(Opt, MakeIndex(Opt->getName()));
+}
+
+Arg *ArgList::MakePositionalArg(const Option *Opt, const char *Value) {
+ return new PositionalArg(Opt, MakeIndex(Value));
+}
+
+Arg *ArgList::MakeSeparateArg(const Option *Opt, const char *Value) {
+ return new SeparateArg(Opt, MakeIndex(Opt->getName(), Value), 1);
+}
+
+Arg *ArgList::MakeJoinedArg(const Option *Opt, const char *Value) {
+ std::string Joined(Opt->getName());
+ Joined += Value;
+ return new JoinedArg(Opt, MakeIndex(Joined.c_str()));
+}