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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
//===- YAML.cpp - YAMLIO utilities for object files -----------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines utility classes for handling the YAML representation of
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// object files.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ObjectYAML/YAML.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cctype>
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#include <cstdint>
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using namespace llvm;
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void yaml::ScalarTraits<yaml::BinaryRef>::output(
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const yaml::BinaryRef &Val, void *, raw_ostream &Out) {
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Val.writeAsHex(Out);
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}
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StringRef yaml::ScalarTraits<yaml::BinaryRef>::input(StringRef Scalar, void *,
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yaml::BinaryRef &Val) {
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if (Scalar.size() % 2 != 0)
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return "BinaryRef hex string must contain an even number of nybbles.";
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// TODO: Can we improve YAMLIO to permit a more accurate diagnostic here?
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// (e.g. a caret pointing to the offending character).
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for (unsigned I = 0, N = Scalar.size(); I != N; ++I)
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if (!isxdigit(Scalar[I]))
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return "BinaryRef hex string must contain only hex digits.";
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Val = yaml::BinaryRef(Scalar);
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return {};
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}
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void yaml::BinaryRef::writeAsBinary(raw_ostream &OS) const {
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if (!DataIsHexString) {
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OS.write((const char *)Data.data(), Data.size());
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return;
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}
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for (unsigned I = 0, N = Data.size(); I != N; I += 2) {
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uint8_t Byte;
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StringRef((const char *)&Data[I], 2).getAsInteger(16, Byte);
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OS.write(Byte);
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}
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}
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void yaml::BinaryRef::writeAsHex(raw_ostream &OS) const {
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if (binary_size() == 0)
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return;
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if (DataIsHexString) {
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OS.write((const char *)Data.data(), Data.size());
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return;
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}
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for (uint8_t Byte : Data)
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OS << hexdigit(Byte >> 4) << hexdigit(Byte & 0xf);
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}
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