1 //===- Arg.cpp - Argument Implementations ---------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "llvm/ADT/SmallString.h" 10 #include "llvm/Config/llvm-config.h" 11 #include "llvm/Option/Arg.h" 12 #include "llvm/Option/ArgList.h" 13 #include "llvm/Option/Option.h" 14 #include "llvm/Support/Compiler.h" 15 #include "llvm/Support/Debug.h" 16 #include "llvm/Support/raw_ostream.h" 17 18 using namespace llvm; 19 using namespace llvm::opt; 20 21 Arg::Arg(const Option Opt, StringRef S, unsigned Index, const Arg *BaseArg) 22 : Opt(Opt), BaseArg(BaseArg), Spelling(S), Index(Index), Claimed(false), 23 IgnoredTargetSpecific(false), OwnsValues(false) {} 24 25 Arg::Arg(const Option Opt, StringRef S, unsigned Index, const char *Value0, 26 const Arg *BaseArg) 27 : Opt(Opt), BaseArg(BaseArg), Spelling(S), Index(Index), Claimed(false), 28 IgnoredTargetSpecific(false), OwnsValues(false) { 29 Values.push_back(Value0); 30 } 31 32 Arg::Arg(const Option Opt, StringRef S, unsigned Index, const char *Value0, 33 const char *Value1, const Arg *BaseArg) 34 : Opt(Opt), BaseArg(BaseArg), Spelling(S), Index(Index), Claimed(false), 35 IgnoredTargetSpecific(false), OwnsValues(false) { 36 Values.push_back(Value0); 37 Values.push_back(Value1); 38 } 39 40 Arg::~Arg() { 41 if (OwnsValues) { 42 for (unsigned i = 0, e = Values.size(); i != e; ++i) 43 delete[] Values[i]; 44 } 45 } 46 47 void Arg::print(raw_ostream& O) const { 48 O << "<Opt:"; 49 Opt.print(O, /*AddNewLine=*/false); 50 51 O << " Index:" << Index; 52 53 O << " Values: ["; 54 for (unsigned i = 0, e = Values.size(); i != e; ++i) { 55 if (i) O << ", "; 56 O << "'" << Values[i] << "'"; 57 } 58 59 O << "]>\n"; 60 } 61 62 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) 63 LLVM_DUMP_METHOD void Arg::dump() const { print(dbgs()); } 64 #endif 65 66 std::string Arg::getAsString(const ArgList &Args) const { 67 if (Alias) 68 return Alias->getAsString(Args); 69 70 SmallString<256> Res; 71 raw_svector_ostream OS(Res); 72 73 ArgStringList ASL; 74 render(Args, ASL); 75 for (ArgStringList::iterator 76 it = ASL.begin(), ie = ASL.end(); it != ie; ++it) { 77 if (it != ASL.begin()) 78 OS << ' '; 79 OS << *it; 80 } 81 82 return std::string(OS.str()); 83 } 84 85 void Arg::renderAsInput(const ArgList &Args, ArgStringList &Output) const { 86 if (!getOption().hasNoOptAsInput()) { 87 render(Args, Output); 88 return; 89 } 90 91 Output.append(Values.begin(), Values.end()); 92 } 93 94 void Arg::render(const ArgList &Args, ArgStringList &Output) const { 95 switch (getOption().getRenderStyle()) { 96 case Option::RenderValuesStyle: 97 Output.append(Values.begin(), Values.end()); 98 break; 99 100 case Option::RenderCommaJoinedStyle: { 101 SmallString<256> Res; 102 raw_svector_ostream OS(Res); 103 OS << getSpelling(); 104 for (unsigned i = 0, e = getNumValues(); i != e; ++i) { 105 if (i) OS << ','; 106 OS << getValue(i); 107 } 108 Output.push_back(Args.MakeArgString(OS.str())); 109 break; 110 } 111 112 case Option::RenderJoinedStyle: 113 Output.push_back(Args.GetOrMakeJoinedArgString( 114 getIndex(), getSpelling(), getValue(0))); 115 Output.append(Values.begin() + 1, Values.end()); 116 break; 117 118 case Option::RenderSeparateStyle: 119 Output.push_back(Args.MakeArgString(getSpelling())); 120 Output.append(Values.begin(), Values.end()); 121 break; 122 } 123 } 124