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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/ADT/Twine.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), OwnsValues(false) {
}
Arg::~Arg() {
if (OwnsValues) {
for (unsigned i = 0, e = Values.size(); i != e; ++i)
delete[] Values[i];
}
}
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(getOption().getName());
}
PositionalArg::PositionalArg(const Option *Opt, unsigned Index,
const char *Value0, const Arg *BaseArg)
: Arg(PositionalClass, Opt, Index, BaseArg) {
getValues().push_back(Value0);
}
void PositionalArg::render(const ArgList &Args, ArgStringList &Output) const {
Output.push_back(Args.getArgString(getIndex()));
}
JoinedArg::JoinedArg(const Option *Opt, unsigned Index, const char *Value0,
const Arg *BaseArg)
: Arg(JoinedClass, Opt, Index, BaseArg) {
getValues().push_back(Value0);
}
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.GetOrMakeJoinedArgString(
getIndex(), getOption().getName(), getValue(Args, 0)));
}
}
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 || c == ',') {
if (Prev != Str) {
char *Value = new char[Str - Prev + 1];
memcpy(Value, Prev, Str - Prev);
Value[Str - Prev] = '\0';
getValues().push_back(Value);
}
if (!c)
break;
Prev = Str + 1;
}
}
setOwnsValues(true);
}
void CommaJoinedArg::render(const ArgList &Args, ArgStringList &Output) const {
Output.push_back(Args.getArgString(getIndex()));
}
SeparateArg::SeparateArg(const Option *Opt, unsigned Index, const char *Value0,
const Arg *BaseArg)
: Arg(SeparateClass, Opt, Index, BaseArg) {
getValues().push_back(Value0);
}
void SeparateArg::render(const ArgList &Args, ArgStringList &Output) const {
if (getOption().hasForceJoinedRender()) {
assert(getNumValues() == 1 && "Cannot force joined render with > 1 args.");
Output.push_back(Args.MakeArgString(llvm::StringRef(getOption().getName()) +
getValue(Args, 0)));
} else {
Output.push_back(getOption().getName());
for (unsigned i = 0; i != getNumValues(); ++i)
Output.push_back(getValue(Args, i));
}
}
JoinedAndSeparateArg::JoinedAndSeparateArg(const Option *Opt, unsigned Index,
const char *Value0,
const char *Value1,
const Arg *BaseArg)
: Arg(JoinedAndSeparateClass, Opt, Index, BaseArg) {
getValues().push_back(Value0);
getValues().push_back(Value1);
}
void JoinedAndSeparateArg::render(const ArgList &Args,
ArgStringList &Output) const {
Output.push_back(Args.GetOrMakeJoinedArgString(
getIndex(), getOption().getName(), getValue(Args, 0)));
Output.push_back(getValue(Args, 1));
}
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