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6c08f802a6
The clang::RewriteBuffer can do weird things when seeing multiple replacements where the replacement text is one character longer or one character shorter than the range it is replacing. rdar://problem/32234525
70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
//===--- FixitApplyDiagnosticConsumer.cpp ---------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#include "swift/Basic/SourceManager.h"
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#include "swift/Frontend/Frontend.h"
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#include "swift/Migrator/FixitApplyDiagnosticConsumer.h"
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#include "swift/Migrator/Migrator.h"
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#include "swift/Migrator/MigratorOptions.h"
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#include "swift/AST/DiagnosticsSema.h"
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using namespace swift;
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using namespace swift::migrator;
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FixitApplyDiagnosticConsumer::
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FixitApplyDiagnosticConsumer(const StringRef Text,
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const StringRef BufferName)
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: Text(Text), BufferName(BufferName), NumFixitsApplied(0) {
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RewriteBuf.Initialize(Text);
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}
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void FixitApplyDiagnosticConsumer::printResult(llvm::raw_ostream &OS) const {
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RewriteBuf.write(OS);
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}
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void FixitApplyDiagnosticConsumer::
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handleDiagnostic(SourceManager &SM, SourceLoc Loc,
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DiagnosticKind Kind,
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StringRef FormatString,
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ArrayRef<DiagnosticArgument> FormatArgs,
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const DiagnosticInfo &Info) {
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if (Loc.isInvalid()) {
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return;
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}
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auto ThisBufferID = SM.findBufferContainingLoc(Loc);
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auto ThisBufferName = SM.getIdentifierForBuffer(ThisBufferID);
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if (ThisBufferName != BufferName) {
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return;
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}
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if (!shouldTakeFixit(Kind, Info)) {
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return;
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}
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for (const auto &Fixit : Info.FixIts) {
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auto Offset = SM.getLocOffsetInBuffer(Fixit.getRange().getStart(),
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ThisBufferID);
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auto Length = Fixit.getRange().getByteLength();
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Replacement R { Offset, Length, Fixit.getText() };
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if (Replacements.count(R)) {
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return;
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} else {
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Replacements.insert(R);
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}
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RewriteBuf.ReplaceText(Offset, Length, Fixit.getText());
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++NumFixitsApplied;
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}
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}
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