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Driver: Add argument translation utilities to ArgList. 

- Support things like telling which -ffoo -fno-foo option won, and
   forwarding all arguments matching a certain set of options to the
   tool.

llvm-svn: 67189
This commit is contained in:
Daniel Dunbar 2009-03-18 09:29:36 +00:00
parent a3246a0638
commit 7591f29f7c
2 changed files with 90 additions and 0 deletions
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25
clang/include/clang/Driver/ArgList.h
View File

@ -112,6 +112,31 @@ namespace driver {
/// given option \arg Id, with the provided \arg Value.
Arg *MakeJoinedArg(const Option *Opt, const char *Value) const;
/// @}
/// @name Translation Utilities
/// @{
/// hasFlag - Given an option \arg Pos and its negative form \arg
/// Neg, return true if the option is present, false if the
/// negation is present, and \arg Default if neither option is
/// given. If both the option and its negation are present, the
/// last one wins.
bool hasFlag(options::ID Pos, options::ID Neg, bool Default) const;
/// AddLastArg - Render only the last argument match \arg Id0, if
/// present.
void AddLastArg(ArgStringList &Output, options::ID Id0) const;
/// AddAllArgs - Render all arguments matching the given ids.
void AddAllArgs(ArgStringList &Output, options::ID Id0) const;
void AddAllArgs(ArgStringList &Output, options::ID Id0, options::ID Id1) const;
void AddAllArgs(ArgStringList &Output, options::ID Id0, options::ID Id1,
options::ID Id2) const;
/// AddAllArgValues - Render the argument values of all arguments
/// matching the given ids.
void AddAllArgValues(ArgStringList &Output, options::ID Id0) const;
/// @}
};
} // end namespace driver

65
clang/lib/Driver/ArgList.cpp
View File

@ -58,6 +58,16 @@ Arg *ArgList::getLastArg(options::ID Id0, options::ID Id1, bool Claim) const {
return Res;
}
bool ArgList::hasFlag(options::ID Pos, options::ID Neg, bool Default) const {
Arg *PosA = getLastArg(Pos);
Arg *NegA = getLastArg(Pos);
if (PosA && NegA)
return NegA->getIndex() < PosA->getIndex();
if (PosA) return true;
if (NegA) return false;
return Default;
}
unsigned ArgList::MakeIndex(const char *String0) const {
unsigned Index = ArgStrings.size();
@ -97,3 +107,58 @@ Arg *ArgList::MakeJoinedArg(const Option *Opt, const char *Value) const {
Joined += Value;
return new JoinedArg(Opt, MakeIndex(Joined.c_str()));
}
void ArgList::AddLastArg(ArgStringList &Output, options::ID Id) const {
if (Arg *A = getLastArg(Id)) {
A->claim();
A->render(*this, Output);
}
}
void ArgList::AddAllArgs(ArgStringList &Output, options::ID Id0) const {
// FIXME: Make fast.
for (const_iterator it = begin(), ie = end(); it != ie; ++it) {
const Arg *A = *it;
if (A->getOption().matches(Id0)) {
A->claim();
A->render(*this, Output);
}
}
}
void ArgList::AddAllArgs(ArgStringList &Output, options::ID Id0,
options::ID Id1) const {
// FIXME: Make fast.
for (const_iterator it = begin(), ie = end(); it != ie; ++it) {
const Arg *A = *it;
if (A->getOption().matches(Id0) || A->getOption().matches(Id1)) {
A->claim();
A->render(*this, Output);
}
}
}
void ArgList::AddAllArgs(ArgStringList &Output, options::ID Id0,
options::ID Id1, options::ID Id2) const {
// FIXME: Make fast.
for (const_iterator it = begin(), ie = end(); it != ie; ++it) {
const Arg *A = *it;
if (A->getOption().matches(Id0) || A->getOption().matches(Id1) ||
A->getOption().matches(Id2)) {
A->claim();
A->render(*this, Output);
}
}
}
void ArgList::AddAllArgValues(ArgStringList &Output, options::ID Id0) const {
// FIXME: Make fast.
for (const_iterator it = begin(), ie = end(); it != ie; ++it) {
const Arg *A = *it;
if (A->getOption().matches(Id0)) {
A->claim();
for (unsigned i = 0, e = A->getNumValues(); i != e; ++i)
Output.push_back(A->getValue(*this, i));
}
}
}