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150
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1 //===--- ARCMT.cpp - Migration to ARC mode --------------------------------===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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252
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9 #include "clang/ARCMigrate/ARCMT.h"
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150
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10 #include "Internals.h"
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11 #include "clang/AST/ASTConsumer.h"
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12 #include "clang/Basic/DiagnosticCategories.h"
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13 #include "clang/Frontend/ASTUnit.h"
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14 #include "clang/Frontend/CompilerInstance.h"
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15 #include "clang/Frontend/FrontendAction.h"
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16 #include "clang/Frontend/TextDiagnosticPrinter.h"
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17 #include "clang/Frontend/Utils.h"
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18 #include "clang/Lex/Preprocessor.h"
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19 #include "clang/Lex/PreprocessorOptions.h"
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20 #include "clang/Rewrite/Core/Rewriter.h"
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21 #include "clang/Sema/SemaDiagnostic.h"
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22 #include "clang/Serialization/ASTReader.h"
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23 #include "llvm/Support/MemoryBuffer.h"
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252
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24 #include "llvm/TargetParser/Triple.h"
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150
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25 #include <utility>
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26 using namespace clang;
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27 using namespace arcmt;
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28
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29 bool CapturedDiagList::clearDiagnostic(ArrayRef<unsigned> IDs,
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30 SourceRange range) {
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31 if (range.isInvalid())
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32 return false;
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33
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34 bool cleared = false;
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35 ListTy::iterator I = List.begin();
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36 while (I != List.end()) {
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37 FullSourceLoc diagLoc = I->getLocation();
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38 if ((IDs.empty() || // empty means clear all diagnostics in the range.
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39 llvm::is_contained(IDs, I->getID())) &&
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40 !diagLoc.isBeforeInTranslationUnitThan(range.getBegin()) &&
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41 (diagLoc == range.getEnd() ||
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42 diagLoc.isBeforeInTranslationUnitThan(range.getEnd()))) {
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43 cleared = true;
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44 ListTy::iterator eraseS = I++;
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45 if (eraseS->getLevel() != DiagnosticsEngine::Note)
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46 while (I != List.end() && I->getLevel() == DiagnosticsEngine::Note)
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47 ++I;
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48 // Clear the diagnostic and any notes following it.
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49 I = List.erase(eraseS, I);
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50 continue;
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51 }
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52
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53 ++I;
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54 }
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55
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56 return cleared;
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57 }
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58
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59 bool CapturedDiagList::hasDiagnostic(ArrayRef<unsigned> IDs,
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60 SourceRange range) const {
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61 if (range.isInvalid())
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62 return false;
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63
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64 ListTy::const_iterator I = List.begin();
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65 while (I != List.end()) {
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66 FullSourceLoc diagLoc = I->getLocation();
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67 if ((IDs.empty() || // empty means any diagnostic in the range.
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236
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68 llvm::is_contained(IDs, I->getID())) &&
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150
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69 !diagLoc.isBeforeInTranslationUnitThan(range.getBegin()) &&
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70 (diagLoc == range.getEnd() ||
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71 diagLoc.isBeforeInTranslationUnitThan(range.getEnd()))) {
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72 return true;
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73 }
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74
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75 ++I;
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76 }
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77
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78 return false;
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79 }
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80
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81 void CapturedDiagList::reportDiagnostics(DiagnosticsEngine &Diags) const {
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82 for (ListTy::const_iterator I = List.begin(), E = List.end(); I != E; ++I)
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83 Diags.Report(*I);
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84 }
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85
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86 bool CapturedDiagList::hasErrors() const {
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87 for (ListTy::const_iterator I = List.begin(), E = List.end(); I != E; ++I)
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88 if (I->getLevel() >= DiagnosticsEngine::Error)
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89 return true;
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90
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91 return false;
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92 }
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93
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94 namespace {
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95
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96 class CaptureDiagnosticConsumer : public DiagnosticConsumer {
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97 DiagnosticsEngine &Diags;
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98 DiagnosticConsumer &DiagClient;
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99 CapturedDiagList &CapturedDiags;
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100 bool HasBegunSourceFile;
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101 public:
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102 CaptureDiagnosticConsumer(DiagnosticsEngine &diags,
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103 DiagnosticConsumer &client,
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104 CapturedDiagList &capturedDiags)
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105 : Diags(diags), DiagClient(client), CapturedDiags(capturedDiags),
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106 HasBegunSourceFile(false) { }
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107
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108 void BeginSourceFile(const LangOptions &Opts,
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109 const Preprocessor *PP) override {
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110 // Pass BeginSourceFile message onto DiagClient on first call.
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111 // The corresponding EndSourceFile call will be made from an
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112 // explicit call to FinishCapture.
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113 if (!HasBegunSourceFile) {
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114 DiagClient.BeginSourceFile(Opts, PP);
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115 HasBegunSourceFile = true;
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116 }
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117 }
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118
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119 void FinishCapture() {
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120 // Call EndSourceFile on DiagClient on completion of capture to
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121 // enable VerifyDiagnosticConsumer to check diagnostics *after*
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122 // it has received the diagnostic list.
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123 if (HasBegunSourceFile) {
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124 DiagClient.EndSourceFile();
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125 HasBegunSourceFile = false;
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126 }
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127 }
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128
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129 ~CaptureDiagnosticConsumer() override {
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130 assert(!HasBegunSourceFile && "FinishCapture not called!");
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131 }
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132
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133 void HandleDiagnostic(DiagnosticsEngine::Level level,
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134 const Diagnostic &Info) override {
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135 if (DiagnosticIDs::isARCDiagnostic(Info.getID()) ||
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136 level >= DiagnosticsEngine::Error || level == DiagnosticsEngine::Note) {
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137 if (Info.getLocation().isValid())
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138 CapturedDiags.push_back(StoredDiagnostic(level, Info));
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139 return;
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140 }
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141
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142 // Non-ARC warnings are ignored.
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143 Diags.setLastDiagnosticIgnored(true);
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144 }
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145 };
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146
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147 } // end anonymous namespace
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148
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149 static bool HasARCRuntime(CompilerInvocation &origCI) {
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150 // This duplicates some functionality from Darwin::AddDeploymentTarget
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151 // but this function is well defined, so keep it decoupled from the driver
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152 // and avoid unrelated complications.
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153 llvm::Triple triple(origCI.getTargetOpts().Triple);
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154
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155 if (triple.isiOS())
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156 return triple.getOSMajorVersion() >= 5;
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157
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158 if (triple.isWatchOS())
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159 return true;
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160
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161 if (triple.getOS() == llvm::Triple::Darwin)
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162 return triple.getOSMajorVersion() >= 11;
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163
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164 if (triple.getOS() == llvm::Triple::MacOSX) {
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236
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165 return triple.getOSVersion() >= VersionTuple(10, 7);
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150
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166 }
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167
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168 return false;
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169 }
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170
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171 static CompilerInvocation *
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172 createInvocationForMigration(CompilerInvocation &origCI,
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173 const PCHContainerReader &PCHContainerRdr) {
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174 std::unique_ptr<CompilerInvocation> CInvok;
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175 CInvok.reset(new CompilerInvocation(origCI));
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176 PreprocessorOptions &PPOpts = CInvok->getPreprocessorOpts();
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177 if (!PPOpts.ImplicitPCHInclude.empty()) {
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178 // We can't use a PCH because it was likely built in non-ARC mode and we
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179 // want to parse in ARC. Include the original header.
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180 FileManager FileMgr(origCI.getFileSystemOpts());
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181 IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
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182 IntrusiveRefCntPtr<DiagnosticsEngine> Diags(
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183 new DiagnosticsEngine(DiagID, &origCI.getDiagnosticOpts(),
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184 new IgnoringDiagConsumer()));
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185 std::string OriginalFile = ASTReader::getOriginalSourceFile(
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186 PPOpts.ImplicitPCHInclude, FileMgr, PCHContainerRdr, *Diags);
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187 if (!OriginalFile.empty())
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188 PPOpts.Includes.insert(PPOpts.Includes.begin(), OriginalFile);
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189 PPOpts.ImplicitPCHInclude.clear();
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190 }
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191 std::string define = std::string(getARCMTMacroName());
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192 define += '=';
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193 CInvok->getPreprocessorOpts().addMacroDef(define);
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194 CInvok->getLangOpts()->ObjCAutoRefCount = true;
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195 CInvok->getLangOpts()->setGC(LangOptions::NonGC);
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196 CInvok->getDiagnosticOpts().ErrorLimit = 0;
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197 CInvok->getDiagnosticOpts().PedanticErrors = 0;
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198
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199 // Ignore -Werror flags when migrating.
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200 std::vector<std::string> WarnOpts;
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201 for (std::vector<std::string>::iterator
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202 I = CInvok->getDiagnosticOpts().Warnings.begin(),
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203 E = CInvok->getDiagnosticOpts().Warnings.end(); I != E; ++I) {
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204 if (!StringRef(*I).startswith("error"))
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205 WarnOpts.push_back(*I);
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206 }
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207 WarnOpts.push_back("error=arc-unsafe-retained-assign");
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208 CInvok->getDiagnosticOpts().Warnings = std::move(WarnOpts);
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209
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210 CInvok->getLangOpts()->ObjCWeakRuntime = HasARCRuntime(origCI);
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211 CInvok->getLangOpts()->ObjCWeak = CInvok->getLangOpts()->ObjCWeakRuntime;
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212
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213 return CInvok.release();
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214 }
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215
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216 static void emitPremigrationErrors(const CapturedDiagList &arcDiags,
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217 DiagnosticOptions *diagOpts,
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218 Preprocessor &PP) {
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219 TextDiagnosticPrinter printer(llvm::errs(), diagOpts);
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220 IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
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221 IntrusiveRefCntPtr<DiagnosticsEngine> Diags(
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222 new DiagnosticsEngine(DiagID, diagOpts, &printer,
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223 /*ShouldOwnClient=*/false));
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224 Diags->setSourceManager(&PP.getSourceManager());
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225
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226 printer.BeginSourceFile(PP.getLangOpts(), &PP);
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227 arcDiags.reportDiagnostics(*Diags);
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228 printer.EndSourceFile();
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229 }
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230
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231 //===----------------------------------------------------------------------===//
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232 // checkForManualIssues.
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233 //===----------------------------------------------------------------------===//
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234
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235 bool arcmt::checkForManualIssues(
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236 CompilerInvocation &origCI, const FrontendInputFile &Input,
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237 std::shared_ptr<PCHContainerOperations> PCHContainerOps,
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238 DiagnosticConsumer *DiagClient, bool emitPremigrationARCErrors,
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239 StringRef plistOut) {
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240 if (!origCI.getLangOpts()->ObjC)
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241 return false;
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242
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243 LangOptions::GCMode OrigGCMode = origCI.getLangOpts()->getGC();
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244 bool NoNSAllocReallocError = origCI.getMigratorOpts().NoNSAllocReallocError;
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245 bool NoFinalizeRemoval = origCI.getMigratorOpts().NoFinalizeRemoval;
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246
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247 std::vector<TransformFn> transforms = arcmt::getAllTransformations(OrigGCMode,
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248 NoFinalizeRemoval);
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249 assert(!transforms.empty());
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250
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251 std::unique_ptr<CompilerInvocation> CInvok;
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252 CInvok.reset(
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253 createInvocationForMigration(origCI, PCHContainerOps->getRawReader()));
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254 CInvok->getFrontendOpts().Inputs.clear();
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255 CInvok->getFrontendOpts().Inputs.push_back(Input);
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256
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257 CapturedDiagList capturedDiags;
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258
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259 assert(DiagClient);
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260 IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
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261 IntrusiveRefCntPtr<DiagnosticsEngine> Diags(
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262 new DiagnosticsEngine(DiagID, &origCI.getDiagnosticOpts(),
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263 DiagClient, /*ShouldOwnClient=*/false));
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264
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265 // Filter of all diagnostics.
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266 CaptureDiagnosticConsumer errRec(*Diags, *DiagClient, capturedDiags);
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267 Diags->setClient(&errRec, /*ShouldOwnClient=*/false);
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268
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269 std::unique_ptr<ASTUnit> Unit(ASTUnit::LoadFromCompilerInvocationAction(
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270 std::move(CInvok), PCHContainerOps, Diags));
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271 if (!Unit) {
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272 errRec.FinishCapture();
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273 return true;
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274 }
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275
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276 // Don't filter diagnostics anymore.
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277 Diags->setClient(DiagClient, /*ShouldOwnClient=*/false);
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278
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279 ASTContext &Ctx = Unit->getASTContext();
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280
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281 if (Diags->hasFatalErrorOccurred()) {
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282 Diags->Reset();
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283 DiagClient->BeginSourceFile(Ctx.getLangOpts(), &Unit->getPreprocessor());
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284 capturedDiags.reportDiagnostics(*Diags);
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285 DiagClient->EndSourceFile();
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286 errRec.FinishCapture();
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287 return true;
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288 }
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289
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290 if (emitPremigrationARCErrors)
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291 emitPremigrationErrors(capturedDiags, &origCI.getDiagnosticOpts(),
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292 Unit->getPreprocessor());
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293 if (!plistOut.empty()) {
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294 SmallVector<StoredDiagnostic, 8> arcDiags;
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295 for (CapturedDiagList::iterator
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296 I = capturedDiags.begin(), E = capturedDiags.end(); I != E; ++I)
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297 arcDiags.push_back(*I);
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298 writeARCDiagsToPlist(std::string(plistOut), arcDiags,
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299 Ctx.getSourceManager(), Ctx.getLangOpts());
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300 }
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301
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302 // After parsing of source files ended, we want to reuse the
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303 // diagnostics objects to emit further diagnostics.
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304 // We call BeginSourceFile because DiagnosticConsumer requires that
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305 // diagnostics with source range information are emitted only in between
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306 // BeginSourceFile() and EndSourceFile().
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307 DiagClient->BeginSourceFile(Ctx.getLangOpts(), &Unit->getPreprocessor());
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308
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309 // No macros will be added since we are just checking and we won't modify
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310 // source code.
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311 std::vector<SourceLocation> ARCMTMacroLocs;
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312
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313 TransformActions testAct(*Diags, capturedDiags, Ctx, Unit->getPreprocessor());
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314 MigrationPass pass(Ctx, OrigGCMode, Unit->getSema(), testAct, capturedDiags,
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315 ARCMTMacroLocs);
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316 pass.setNoFinalizeRemoval(NoFinalizeRemoval);
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317 if (!NoNSAllocReallocError)
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318 Diags->setSeverity(diag::warn_arcmt_nsalloc_realloc, diag::Severity::Error,
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319 SourceLocation());
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320
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321 for (unsigned i=0, e = transforms.size(); i != e; ++i)
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322 transforms[i](pass);
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323
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324 capturedDiags.reportDiagnostics(*Diags);
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325
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326 DiagClient->EndSourceFile();
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327 errRec.FinishCapture();
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328
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329 return capturedDiags.hasErrors() || testAct.hasReportedErrors();
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330 }
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331
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332 //===----------------------------------------------------------------------===//
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333 // applyTransformations.
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334 //===----------------------------------------------------------------------===//
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335
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336 static bool
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337 applyTransforms(CompilerInvocation &origCI, const FrontendInputFile &Input,
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338 std::shared_ptr<PCHContainerOperations> PCHContainerOps,
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339 DiagnosticConsumer *DiagClient, StringRef outputDir,
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340 bool emitPremigrationARCErrors, StringRef plistOut) {
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341 if (!origCI.getLangOpts()->ObjC)
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342 return false;
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343
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344 LangOptions::GCMode OrigGCMode = origCI.getLangOpts()->getGC();
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345
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346 // Make sure checking is successful first.
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347 CompilerInvocation CInvokForCheck(origCI);
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348 if (arcmt::checkForManualIssues(CInvokForCheck, Input, PCHContainerOps,
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349 DiagClient, emitPremigrationARCErrors,
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350 plistOut))
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351 return true;
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352
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353 CompilerInvocation CInvok(origCI);
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354 CInvok.getFrontendOpts().Inputs.clear();
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355 CInvok.getFrontendOpts().Inputs.push_back(Input);
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356
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357 MigrationProcess migration(CInvok, PCHContainerOps, DiagClient, outputDir);
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358 bool NoFinalizeRemoval = origCI.getMigratorOpts().NoFinalizeRemoval;
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359
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360 std::vector<TransformFn> transforms = arcmt::getAllTransformations(OrigGCMode,
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361 NoFinalizeRemoval);
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362 assert(!transforms.empty());
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363
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364 for (unsigned i=0, e = transforms.size(); i != e; ++i) {
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365 bool err = migration.applyTransform(transforms[i]);
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366 if (err) return true;
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367 }
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368
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369 IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
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370 IntrusiveRefCntPtr<DiagnosticsEngine> Diags(
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371 new DiagnosticsEngine(DiagID, &origCI.getDiagnosticOpts(),
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372 DiagClient, /*ShouldOwnClient=*/false));
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373
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374 if (outputDir.empty()) {
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375 origCI.getLangOpts()->ObjCAutoRefCount = true;
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376 return migration.getRemapper().overwriteOriginal(*Diags);
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377 } else {
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378 return migration.getRemapper().flushToDisk(outputDir, *Diags);
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379 }
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380 }
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381
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382 bool arcmt::applyTransformations(
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383 CompilerInvocation &origCI, const FrontendInputFile &Input,
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384 std::shared_ptr<PCHContainerOperations> PCHContainerOps,
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385 DiagnosticConsumer *DiagClient) {
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386 return applyTransforms(origCI, Input, PCHContainerOps, DiagClient,
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387 StringRef(), false, StringRef());
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388 }
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389
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390 bool arcmt::migrateWithTemporaryFiles(
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391 CompilerInvocation &origCI, const FrontendInputFile &Input,
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392 std::shared_ptr<PCHContainerOperations> PCHContainerOps,
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393 DiagnosticConsumer *DiagClient, StringRef outputDir,
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394 bool emitPremigrationARCErrors, StringRef plistOut) {
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395 assert(!outputDir.empty() && "Expected output directory path");
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396 return applyTransforms(origCI, Input, PCHContainerOps, DiagClient, outputDir,
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397 emitPremigrationARCErrors, plistOut);
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398 }
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399
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400 bool arcmt::getFileRemappings(std::vector<std::pair<std::string,std::string> > &
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401 remap,
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402 StringRef outputDir,
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403 DiagnosticConsumer *DiagClient) {
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404 assert(!outputDir.empty());
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405
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406 IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
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407 IntrusiveRefCntPtr<DiagnosticsEngine> Diags(
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408 new DiagnosticsEngine(DiagID, new DiagnosticOptions,
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409 DiagClient, /*ShouldOwnClient=*/false));
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410
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411 FileRemapper remapper;
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412 bool err = remapper.initFromDisk(outputDir, *Diags,
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413 /*ignoreIfFilesChanged=*/true);
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414 if (err)
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415 return true;
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416
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221
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417 remapper.forEachMapping(
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418 [&](StringRef From, StringRef To) {
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419 remap.push_back(std::make_pair(From.str(), To.str()));
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420 },
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421 [](StringRef, const llvm::MemoryBufferRef &) {});
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150
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422
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423 return false;
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424 }
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425
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426
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427 //===----------------------------------------------------------------------===//
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428 // CollectTransformActions.
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429 //===----------------------------------------------------------------------===//
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430
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431 namespace {
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432
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433 class ARCMTMacroTrackerPPCallbacks : public PPCallbacks {
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434 std::vector<SourceLocation> &ARCMTMacroLocs;
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435
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436 public:
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437 ARCMTMacroTrackerPPCallbacks(std::vector<SourceLocation> &ARCMTMacroLocs)
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438 : ARCMTMacroLocs(ARCMTMacroLocs) { }
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439
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440 void MacroExpands(const Token &MacroNameTok, const MacroDefinition &MD,
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441 SourceRange Range, const MacroArgs *Args) override {
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442 if (MacroNameTok.getIdentifierInfo()->getName() == getARCMTMacroName())
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443 ARCMTMacroLocs.push_back(MacroNameTok.getLocation());
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444 }
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445 };
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446
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447 class ARCMTMacroTrackerAction : public ASTFrontendAction {
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448 std::vector<SourceLocation> &ARCMTMacroLocs;
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449
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450 public:
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451 ARCMTMacroTrackerAction(std::vector<SourceLocation> &ARCMTMacroLocs)
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452 : ARCMTMacroLocs(ARCMTMacroLocs) { }
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453
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454 std::unique_ptr<ASTConsumer> CreateASTConsumer(CompilerInstance &CI,
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455 StringRef InFile) override {
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456 CI.getPreprocessor().addPPCallbacks(
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457 std::make_unique<ARCMTMacroTrackerPPCallbacks>(ARCMTMacroLocs));
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458 return std::make_unique<ASTConsumer>();
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459 }
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460 };
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461
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462 class RewritesApplicator : public TransformActions::RewriteReceiver {
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463 Rewriter &rewriter;
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464 MigrationProcess::RewriteListener *Listener;
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465
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466 public:
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467 RewritesApplicator(Rewriter &rewriter, ASTContext &ctx,
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468 MigrationProcess::RewriteListener *listener)
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469 : rewriter(rewriter), Listener(listener) {
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470 if (Listener)
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471 Listener->start(ctx);
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472 }
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473 ~RewritesApplicator() override {
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474 if (Listener)
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475 Listener->finish();
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476 }
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477
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478 void insert(SourceLocation loc, StringRef text) override {
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479 bool err = rewriter.InsertText(loc, text, /*InsertAfter=*/true,
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480 /*indentNewLines=*/true);
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481 if (!err && Listener)
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482 Listener->insert(loc, text);
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483 }
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484
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485 void remove(CharSourceRange range) override {
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486 Rewriter::RewriteOptions removeOpts;
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487 removeOpts.IncludeInsertsAtBeginOfRange = false;
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488 removeOpts.IncludeInsertsAtEndOfRange = false;
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489 removeOpts.RemoveLineIfEmpty = true;
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490
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491 bool err = rewriter.RemoveText(range, removeOpts);
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492 if (!err && Listener)
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493 Listener->remove(range);
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494 }
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495
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496 void increaseIndentation(CharSourceRange range,
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|
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497 SourceLocation parentIndent) override {
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|
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498 rewriter.IncreaseIndentation(range, parentIndent);
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|
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499 }
|
|
|
500 };
|
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501
|
|
|
502 } // end anonymous namespace.
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|
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503
|
|
|
504 /// Anchor for VTable.
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|
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505 MigrationProcess::RewriteListener::~RewriteListener() { }
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|
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506
|
|
|
507 MigrationProcess::MigrationProcess(
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|
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508 const CompilerInvocation &CI,
|
|
|
509 std::shared_ptr<PCHContainerOperations> PCHContainerOps,
|
|
|
510 DiagnosticConsumer *diagClient, StringRef outputDir)
|
|
|
511 : OrigCI(CI), PCHContainerOps(std::move(PCHContainerOps)),
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|
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512 DiagClient(diagClient), HadARCErrors(false) {
|
|
|
513 if (!outputDir.empty()) {
|
|
|
514 IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
|
|
|
515 IntrusiveRefCntPtr<DiagnosticsEngine> Diags(
|
|
|
516 new DiagnosticsEngine(DiagID, &CI.getDiagnosticOpts(),
|
|
|
517 DiagClient, /*ShouldOwnClient=*/false));
|
|
|
518 Remapper.initFromDisk(outputDir, *Diags, /*ignoreIfFilesChanged=*/true);
|
|
|
519 }
|
|
|
520 }
|
|
|
521
|
|
|
522 bool MigrationProcess::applyTransform(TransformFn trans,
|
|
|
523 RewriteListener *listener) {
|
|
|
524 std::unique_ptr<CompilerInvocation> CInvok;
|
|
|
525 CInvok.reset(
|
|
|
526 createInvocationForMigration(OrigCI, PCHContainerOps->getRawReader()));
|
|
|
527 CInvok->getDiagnosticOpts().IgnoreWarnings = true;
|
|
|
528
|
|
|
529 Remapper.applyMappings(CInvok->getPreprocessorOpts());
|
|
|
530
|
|
|
531 CapturedDiagList capturedDiags;
|
|
|
532 std::vector<SourceLocation> ARCMTMacroLocs;
|
|
|
533
|
|
|
534 assert(DiagClient);
|
|
|
535 IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
|
|
|
536 IntrusiveRefCntPtr<DiagnosticsEngine> Diags(
|
|
|
537 new DiagnosticsEngine(DiagID, new DiagnosticOptions,
|
|
|
538 DiagClient, /*ShouldOwnClient=*/false));
|
|
|
539
|
|
|
540 // Filter of all diagnostics.
|
|
|
541 CaptureDiagnosticConsumer errRec(*Diags, *DiagClient, capturedDiags);
|
|
|
542 Diags->setClient(&errRec, /*ShouldOwnClient=*/false);
|
|
|
543
|
|
|
544 std::unique_ptr<ARCMTMacroTrackerAction> ASTAction;
|
|
|
545 ASTAction.reset(new ARCMTMacroTrackerAction(ARCMTMacroLocs));
|
|
|
546
|
|
|
547 std::unique_ptr<ASTUnit> Unit(ASTUnit::LoadFromCompilerInvocationAction(
|
|
|
548 std::move(CInvok), PCHContainerOps, Diags, ASTAction.get()));
|
|
|
549 if (!Unit) {
|
|
|
550 errRec.FinishCapture();
|
|
|
551 return true;
|
|
|
552 }
|
|
|
553 Unit->setOwnsRemappedFileBuffers(false); // FileRemapper manages that.
|
|
|
554
|
|
|
555 HadARCErrors = HadARCErrors || capturedDiags.hasErrors();
|
|
|
556
|
|
|
557 // Don't filter diagnostics anymore.
|
|
|
558 Diags->setClient(DiagClient, /*ShouldOwnClient=*/false);
|
|
|
559
|
|
|
560 ASTContext &Ctx = Unit->getASTContext();
|
|
|
561
|
|
|
562 if (Diags->hasFatalErrorOccurred()) {
|
|
|
563 Diags->Reset();
|
|
|
564 DiagClient->BeginSourceFile(Ctx.getLangOpts(), &Unit->getPreprocessor());
|
|
|
565 capturedDiags.reportDiagnostics(*Diags);
|
|
|
566 DiagClient->EndSourceFile();
|
|
|
567 errRec.FinishCapture();
|
|
|
568 return true;
|
|
|
569 }
|
|
|
570
|
|
|
571 // After parsing of source files ended, we want to reuse the
|
|
|
572 // diagnostics objects to emit further diagnostics.
|
|
|
573 // We call BeginSourceFile because DiagnosticConsumer requires that
|
|
|
574 // diagnostics with source range information are emitted only in between
|
|
|
575 // BeginSourceFile() and EndSourceFile().
|
|
|
576 DiagClient->BeginSourceFile(Ctx.getLangOpts(), &Unit->getPreprocessor());
|
|
|
577
|
|
|
578 Rewriter rewriter(Ctx.getSourceManager(), Ctx.getLangOpts());
|
|
|
579 TransformActions TA(*Diags, capturedDiags, Ctx, Unit->getPreprocessor());
|
|
|
580 MigrationPass pass(Ctx, OrigCI.getLangOpts()->getGC(),
|
|
|
581 Unit->getSema(), TA, capturedDiags, ARCMTMacroLocs);
|
|
|
582
|
|
|
583 trans(pass);
|
|
|
584
|
|
|
585 {
|
|
|
586 RewritesApplicator applicator(rewriter, Ctx, listener);
|
|
|
587 TA.applyRewrites(applicator);
|
|
|
588 }
|
|
|
589
|
|
|
590 DiagClient->EndSourceFile();
|
|
|
591 errRec.FinishCapture();
|
|
|
592
|
|
|
593 if (DiagClient->getNumErrors())
|
|
|
594 return true;
|
|
|
595
|
|
|
596 for (Rewriter::buffer_iterator
|
|
|
597 I = rewriter.buffer_begin(), E = rewriter.buffer_end(); I != E; ++I) {
|
|
|
598 FileID FID = I->first;
|
|
|
599 RewriteBuffer &buf = I->second;
|
|
|
600 const FileEntry *file = Ctx.getSourceManager().getFileEntryForID(FID);
|
|
|
601 assert(file);
|
|
|
602 std::string newFname = std::string(file->getName());
|
|
|
603 newFname += "-trans";
|
|
|
604 SmallString<512> newText;
|
|
|
605 llvm::raw_svector_ostream vecOS(newText);
|
|
|
606 buf.write(vecOS);
|
|
|
607 std::unique_ptr<llvm::MemoryBuffer> memBuf(
|
|
|
608 llvm::MemoryBuffer::getMemBufferCopy(
|
|
|
609 StringRef(newText.data(), newText.size()), newFname));
|
|
|
610 SmallString<64> filePath(file->getName());
|
|
|
611 Unit->getFileManager().FixupRelativePath(filePath);
|
|
|
612 Remapper.remap(filePath.str(), std::move(memBuf));
|
|
|
613 }
|
|
|
614
|
|
|
615 return false;
|
|
|
616 }
|
