LLVM 20.0.0git
YAML.cpp
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1//===- YAML.cpp - YAMLIO utilities for object files -----------------------===//
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// This file defines utility classes for handling the YAML representation of
10// object files.
11//
12//===----------------------------------------------------------------------===//
13
17#include <cctype>
18#include <cstdint>
19
20using namespace llvm;
21
22void yaml::ScalarTraits<yaml::BinaryRef>::output(
23 const yaml::BinaryRef &Val, void *, raw_ostream &Out) {
24 Val.writeAsHex(Out);
25}
26
27StringRef yaml::ScalarTraits<yaml::BinaryRef>::input(StringRef Scalar, void *,
28 yaml::BinaryRef &Val) {
29 if (Scalar.size() % 2 != 0)
30 return "BinaryRef hex string must contain an even number of nybbles.";
31 // TODO: Can we improve YAMLIO to permit a more accurate diagnostic here?
32 // (e.g. a caret pointing to the offending character).
33 if (!llvm::all_of(Scalar, llvm::isHexDigit))
34 return "BinaryRef hex string must contain only hex digits.";
35 Val = yaml::BinaryRef(Scalar);
36 return {};
37}
38
40 if (!DataIsHexString) {
41 OS.write((const char *)Data.data(), std::min<uint64_t>(N, Data.size()));
42 return;
43 }
44
45 for (uint64_t I = 0, E = std::min<uint64_t>(N, Data.size() / 2); I != E;
46 ++I) {
47 uint8_t Byte = llvm::hexDigitValue(Data[I * 2]);
48 Byte <<= 4;
49 Byte |= llvm::hexDigitValue(Data[I * 2 + 1]);
50 OS.write(Byte);
51 }
52}
53
55 if (binary_size() == 0)
56 return;
57 if (DataIsHexString) {
58 OS.write((const char *)Data.data(), Data.size());
59 return;
60 }
61 for (uint8_t Byte : Data)
62 OS << hexdigit(Byte >> 4) << hexdigit(Byte & 0xf);
63}
#define I(x, y, z)
Definition: MD5.cpp:58
raw_pwrite_stream & OS
This file contains some functions that are useful when dealing with strings.
size_t size() const
size - Get the array size.
Definition: ArrayRef.h:165
const T * data() const
Definition: ArrayRef.h:162
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
This class implements an extremely fast bulk output stream that can only output to a stream.
Definition: raw_ostream.h:52
raw_ostream & write(unsigned char C)
Specialized YAMLIO scalar type for representing a binary blob.
Definition: YAML.h:63
void writeAsHex(raw_ostream &OS) const
Write the contents (regardless of whether it is binary or a hex string) as hex to the given raw_ostre...
Definition: YAML.cpp:54
void writeAsBinary(raw_ostream &OS, uint64_t N=UINT64_MAX) const
Write the contents (regardless of whether it is binary or a hex string) as binary to the given raw_os...
Definition: YAML.cpp:39
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
bool all_of(R &&range, UnaryPredicate P)
Provide wrappers to std::all_of which take ranges instead of having to pass begin/end explicitly.
Definition: STLExtras.h:1722
#define N