1 //===- ObjectYAML.cpp - YAML 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 a wrapper class for handling tagged YAML input
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "llvm/ObjectYAML/ObjectYAML.h"
14 #include "llvm/ADT/Twine.h"
15 #include "llvm/Support/YAMLParser.h"
16 #include "llvm/Support/YAMLTraits.h"
17 #include <string>
18 
19 using namespace llvm;
20 using namespace yaml;
21 
22 void MappingTraits<YamlObjectFile>::mapping(IO &IO,
23                                             YamlObjectFile &ObjectFile) {
24   if (IO.outputting()) {
25     if (ObjectFile.Elf)
26       MappingTraits<ELFYAML::Object>::mapping(IO, *ObjectFile.Elf);
27     if (ObjectFile.Coff)
28       MappingTraits<COFFYAML::Object>::mapping(IO, *ObjectFile.Coff);
29     if (ObjectFile.MachO)
30       MappingTraits<MachOYAML::Object>::mapping(IO, *ObjectFile.MachO);
31     if (ObjectFile.FatMachO)
32       MappingTraits<MachOYAML::UniversalBinary>::mapping(IO,
33                                                          *ObjectFile.FatMachO);
34   } else {
35     if (IO.mapTag("!ELF")) {
36       ObjectFile.Elf.reset(new ELFYAML::Object());
37       MappingTraits<ELFYAML::Object>::mapping(IO, *ObjectFile.Elf);
38     } else if (IO.mapTag("!COFF")) {
39       ObjectFile.Coff.reset(new COFFYAML::Object());
40       MappingTraits<COFFYAML::Object>::mapping(IO, *ObjectFile.Coff);
41     } else if (IO.mapTag("!mach-o")) {
42       ObjectFile.MachO.reset(new MachOYAML::Object());
43       MappingTraits<MachOYAML::Object>::mapping(IO, *ObjectFile.MachO);
44     } else if (IO.mapTag("!fat-mach-o")) {
45       ObjectFile.FatMachO.reset(new MachOYAML::UniversalBinary());
46       MappingTraits<MachOYAML::UniversalBinary>::mapping(IO,
47                                                          *ObjectFile.FatMachO);
48     } else if (IO.mapTag("!WASM")) {
49       ObjectFile.Wasm.reset(new WasmYAML::Object());
50       MappingTraits<WasmYAML::Object>::mapping(IO, *ObjectFile.Wasm);
51     } else {
52       Input &In = (Input &)IO;
53       std::string Tag = In.getCurrentNode()->getRawTag();
54       if (Tag.empty())
55         IO.setError("YAML Object File missing document type tag!");
56       else
57         IO.setError(
58             Twine("YAML Object File unsupported document type tag '") +
59             Twine(Tag) + Twine("'!"));
60     }
61   }
62 }
63