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//===--- Arg.cpp - Argument Implementations -----------------------------*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "clang/Driver/Arg.h"
#include "clang/Driver/ArgList.h"
#include "clang/Driver/Option.h"
#include "llvm/Support/raw_ostream.h"
using namespace clang::driver;
Arg::Arg(ArgClass _Kind, const Option *_Opt, unsigned _Index,
const Arg *_BaseArg)
: Kind(_Kind), Opt(_Opt), BaseArg(_BaseArg), Index(_Index), Claimed(false)
{
}
Arg::~Arg() { }
void Arg::dump() const {
llvm::errs() << "<";
switch (Kind) {
default:
assert(0 && "Invalid kind");
#define P(N) case N: llvm::errs() << #N; break
P(FlagClass);
P(PositionalClass);
P(JoinedClass);
P(SeparateClass);
P(CommaJoinedClass);
P(JoinedAndSeparateClass);
#undef P
}
llvm::errs() << " Opt:";
Opt->dump();
llvm::errs() << " Index:" << Index;
if (isa<CommaJoinedArg>(this) || isa<SeparateArg>(this))
llvm::errs() << " NumValues:" << getNumValues();
llvm::errs() << ">\n";
}
std::string Arg::getAsString(const ArgList &Args) const {
std::string Res;
llvm::raw_string_ostream OS(Res);
ArgStringList ASL;
render(Args, ASL);
for (ArgStringList::iterator
it = ASL.begin(), ie = ASL.end(); it != ie; ++it) {
if (it != ASL.begin())
OS << ' ';
OS << *it;
}
return OS.str();
}
void Arg::renderAsInput(const ArgList &Args, ArgStringList &Output) const {
if (!getOption().hasNoOptAsInput()) {
render(Args, Output);
return;
}
for (unsigned i = 0, e = getNumValues(); i != e; ++i)
Output.push_back(getValue(Args, i));
}
FlagArg::FlagArg(const Option *Opt, unsigned Index, const Arg *BaseArg)
: Arg(FlagClass, Opt, Index, BaseArg) {
}
void FlagArg::render(const ArgList &Args, ArgStringList &Output) const {
Output.push_back(Args.getArgString(getIndex()));
}
const char *FlagArg::getValue(const ArgList &Args, unsigned N) const {
assert(0 && "Invalid index.");
return 0;
}
PositionalArg::PositionalArg(const Option *Opt, unsigned Index,
const Arg *BaseArg)
: Arg(PositionalClass, Opt, Index, BaseArg) {
}
void PositionalArg::render(const ArgList &Args, ArgStringList &Output) const {
Output.push_back(Args.getArgString(getIndex()));
}
const char *PositionalArg::getValue(const ArgList &Args, unsigned N) const {
assert(N < getNumValues() && "Invalid index.");
return Args.getArgString(getIndex());
}
JoinedArg::JoinedArg(const Option *Opt, unsigned Index, const Arg *BaseArg)
: Arg(JoinedClass, Opt, Index, BaseArg) {
}
void JoinedArg::render(const ArgList &Args, ArgStringList &Output) const {
if (getOption().hasForceSeparateRender()) {
Output.push_back(getOption().getName());
Output.push_back(getValue(Args, 0));
} else {
Output.push_back(Args.getArgString(getIndex()));
}
}
const char *JoinedArg::getValue(const ArgList &Args, unsigned N) const {
assert(N < getNumValues() && "Invalid index.");
// FIXME: Avoid strlen.
return Args.getArgString(getIndex()) + strlen(getOption().getName());
}
CommaJoinedArg::CommaJoinedArg(const Option *Opt, unsigned Index,
const char *Str, const Arg *BaseArg)
: Arg(CommaJoinedClass, Opt, Index, BaseArg) {
const char *Prev = Str;
for (;; ++Str) {
char c = *Str;
if (!c) {
if (Prev != Str)
Values.push_back(std::string(Prev, Str));
break;
} else if (c == ',') {
if (Prev != Str)
Values.push_back(std::string(Prev, Str));
Prev = Str + 1;
}
}
}
void CommaJoinedArg::render(const ArgList &Args, ArgStringList &Output) const {
Output.push_back(Args.getArgString(getIndex()));
}
const char *CommaJoinedArg::getValue(const ArgList &Args, unsigned N) const {
assert(N < getNumValues() && "Invalid index.");
return Values[N].c_str();
}
SeparateArg::SeparateArg(const Option *Opt, unsigned Index, unsigned _NumValues,
const Arg *BaseArg)
: Arg(SeparateClass, Opt, Index, BaseArg), NumValues(_NumValues) {
}
void SeparateArg::render(const ArgList &Args, ArgStringList &Output) const {
if (getOption().hasForceJoinedRender()) {
assert(getNumValues() == 1 && "Cannot force joined render with > 1 args.");
// FIXME: Avoid std::string.
std::string Joined(getOption().getName());
Joined += Args.getArgString(getIndex());
Output.push_back(Args.MakeArgString(Joined.c_str()));
} else {
Output.push_back(Args.getArgString(getIndex()));
for (unsigned i = 0; i < NumValues; ++i)
Output.push_back(Args.getArgString(getIndex() + 1 + i));
}
}
const char *SeparateArg::getValue(const ArgList &Args, unsigned N) const {
assert(N < getNumValues() && "Invalid index.");
return Args.getArgString(getIndex() + 1 + N);
}
JoinedAndSeparateArg::JoinedAndSeparateArg(const Option *Opt, unsigned Index,
const Arg *BaseArg)
: Arg(JoinedAndSeparateClass, Opt, Index, BaseArg) {
}
void JoinedAndSeparateArg::render(const ArgList &Args,
ArgStringList &Output) const {
Output.push_back(Args.getArgString(getIndex()));
Output.push_back(Args.getArgString(getIndex() + 1));
}
const char *JoinedAndSeparateArg::getValue(const ArgList &Args,
unsigned N) const {
assert(N < getNumValues() && "Invalid index.");
if (N == 0)
return Args.getArgString(getIndex()) + strlen(getOption().getName());
return Args.getArgString(getIndex() + 1);
}
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