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 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 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 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 << "<"; 49 50 O << " Opt:"; 51 Opt.print(O); 52 53 O << " Index:" << Index; 54 55 O << " Values: ["; 56 for (unsigned i = 0, e = Values.size(); i != e; ++i) { 57 if (i) O << ", "; 58 O << "'" << Values[i] << "'"; 59 } 60 61 O << "]>\n"; 62 } 63 64 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) 65 LLVM_DUMP_METHOD void Arg::dump() const { print(dbgs()); } 66 #endif 67 68 std::string Arg::getAsString(const ArgList &Args) const { 69 if (Alias) 70 return Alias->getAsString(Args); 71 72 SmallString<256> Res; 73 raw_svector_ostream OS(Res); 74 75 ArgStringList ASL; 76 render(Args, ASL); 77 for (ArgStringList::iterator 78 it = ASL.begin(), ie = ASL.end(); it != ie; ++it) { 79 if (it != ASL.begin()) 80 OS << ' '; 81 OS << *it; 82 } 83 84 return std::string(OS.str()); 85 } 86 87 void Arg::renderAsInput(const ArgList &Args, ArgStringList &Output) const { 88 if (!getOption().hasNoOptAsInput()) { 89 render(Args, Output); 90 return; 91 } 92 93 Output.append(Values.begin(), Values.end()); 94 } 95 96 void Arg::render(const ArgList &Args, ArgStringList &Output) const { 97 switch (getOption().getRenderStyle()) { 98 case Option::RenderValuesStyle: 99 Output.append(Values.begin(), Values.end()); 100 break; 101 102 case Option::RenderCommaJoinedStyle: { 103 SmallString<256> Res; 104 raw_svector_ostream OS(Res); 105 OS << getSpelling(); 106 for (unsigned i = 0, e = getNumValues(); i != e; ++i) { 107 if (i) OS << ','; 108 OS << getValue(i); 109 } 110 Output.push_back(Args.MakeArgString(OS.str())); 111 break; 112 } 113 114 case Option::RenderJoinedStyle: 115 Output.push_back(Args.GetOrMakeJoinedArgString( 116 getIndex(), getSpelling(), getValue(0))); 117 Output.append(Values.begin() + 1, Values.end()); 118 break; 119 120 case Option::RenderSeparateStyle: 121 Output.push_back(Args.MakeArgString(getSpelling())); 122 Output.append(Values.begin(), Values.end()); 123 break; 124 } 125 } 126