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78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
//===--- PrettyStackTrace.cpp - Generic PrettyStackTraceEntries -----------===//
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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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//
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// This file implements several PrettyStackTraceEntries that probably
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// ought to be in LLVM.
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//
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//===----------------------------------------------------------------------===//
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#include "swift/Basic/PrettyStackTrace.h"
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#include "swift/Basic/QuotedString.h"
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#include "swift/Basic/Version.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace swift;
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void PrettyStackTraceStringAction::print(llvm::raw_ostream &out) const {
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out << "While " << Action << ' ' << QuotedString(TheString) << '\n';
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}
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void PrettyStackTraceFileContents::print(llvm::raw_ostream &out) const {
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out << "Contents of " << Buffer.getBufferIdentifier() << ":\n---\n"
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<< Buffer.getBuffer();
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if (!Buffer.getBuffer().ends_with("\n"))
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out << '\n';
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out << "---\n";
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}
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void PrettyStackTraceSwiftVersion::print(llvm::raw_ostream &out) const {
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out << version::getSwiftFullVersion() << '\n';
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}
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namespace {
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/// Similar to PrettyStackTraceString, but formats multi-line strings for
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/// the stack trace.
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class PrettyStackTraceMultilineString : public llvm::PrettyStackTraceEntry {
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StringRef Str;
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public:
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PrettyStackTraceMultilineString(StringRef str) : Str(str) {}
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void print(raw_ostream &OS) const override {
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// For each line, add a leading character and indentation to better match
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// the formatting of the stack trace.
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for (auto c : Str.rtrim('\n')) {
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OS << c;
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if (c == '\n')
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OS << "| \t";
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}
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OS << '\n';
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}
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};
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} // end anonymous namespace
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void swift::abortWithPrettyStackTraceMessage(
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llvm::function_ref<void(llvm::raw_ostream &)> message) {
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llvm::SmallString<0> errorStr;
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llvm::raw_svector_ostream out(errorStr);
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message(out);
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PrettyStackTraceMultilineString trace(errorStr);
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abort();
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}
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void swift::abortWithPrettyStackTraceMessage(StringRef message) {
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PrettyStackTraceMultilineString trace(message);
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abort();
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}
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