1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/*
* Copyright 2016 WebAssembly Community Group participants
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <cassert>
#include <cinttypes>
#include <cstdio>
#include <cstdlib>
#include "src/apply-names.h"
#include "src/binary-reader.h"
#include "src/binary-reader-ir.h"
#include "src/error-formatter.h"
#include "src/feature.h"
#include "src/generate-names.h"
#include "src/ir.h"
#include "src/option-parser.h"
#include "src/stream.h"
#include "src/validator.h"
#include "src/wast-lexer.h"
#include "src/wat-writer.h"
using namespace wabt;
static int s_verbose;
static std::string s_infile;
static std::string s_outfile;
static Features s_features;
static WriteWatOptions s_write_wat_options;
static bool s_generate_names = false;
static bool s_read_debug_names = true;
static bool s_fail_on_custom_section_error = true;
static std::unique_ptr<FileStream> s_log_stream;
static bool s_validate = true;
static const char s_description[] =
R"( Read a file in the WebAssembly binary format, and convert it to
the WebAssembly text format.
examples:
# parse binary file test.wasm and write text file test.wast
$ wasm2wat test.wasm -o test.wat
# parse test.wasm, write test.wat, but ignore the debug names, if any
$ wasm2wat test.wasm --no-debug-names -o test.wat
)";
static void ParseOptions(int argc, char** argv) {
OptionParser parser("wasm2wat", s_description);
parser.AddOption('v', "verbose", "Use multiple times for more info", []() {
s_verbose++;
s_log_stream = FileStream::CreateStderr();
});
parser.AddOption(
'o', "output", "FILENAME",
"Output file for the generated wast file, by default use stdout",
[](const char* argument) {
s_outfile = argument;
ConvertBackslashToSlash(&s_outfile);
});
parser.AddOption('f', "fold-exprs", "Write folded expressions where possible",
[]() { s_write_wat_options.fold_exprs = true; });
s_features.AddOptions(&parser);
parser.AddOption("inline-exports", "Write all exports inline",
[]() { s_write_wat_options.inline_export = true; });
parser.AddOption("inline-imports", "Write all imports inline",
[]() { s_write_wat_options.inline_import = true; });
parser.AddOption("no-debug-names", "Ignore debug names in the binary file",
[]() { s_read_debug_names = false; });
parser.AddOption("ignore-custom-section-errors",
"Ignore errors in custom sections",
[]() { s_fail_on_custom_section_error = false; });
parser.AddOption(
"generate-names",
"Give auto-generated names to non-named functions, types, etc.",
[]() { s_generate_names = true; });
parser.AddOption("no-check", "Don't check for invalid modules",
[]() { s_validate = false; });
parser.AddArgument("filename", OptionParser::ArgumentCount::One,
[](const char* argument) {
s_infile = argument;
ConvertBackslashToSlash(&s_infile);
});
parser.Parse(argc, argv);
}
int ProgramMain(int argc, char** argv) {
Result result;
InitStdio();
ParseOptions(argc, argv);
std::vector<uint8_t> file_data;
result = ReadFile(s_infile.c_str(), &file_data);
if (Succeeded(result)) {
Errors errors;
Module module;
const bool kStopOnFirstError = true;
ReadBinaryOptions options(s_features, s_log_stream.get(),
s_read_debug_names, kStopOnFirstError,
s_fail_on_custom_section_error);
result = ReadBinaryIr(s_infile.c_str(), file_data.data(), file_data.size(),
options, &errors, &module);
if (Succeeded(result)) {
if (Succeeded(result) && s_validate) {
ValidateOptions options(s_features);
result = ValidateModule(&module, &errors, options);
}
if (s_generate_names) {
result = GenerateNames(&module);
}
if (Succeeded(result)) {
/* TODO(binji): This shouldn't fail; if a name can't be applied
* (because the index is invalid, say) it should just be skipped. */
Result dummy_result = ApplyNames(&module);
WABT_USE(dummy_result);
}
if (Succeeded(result)) {
FileStream stream(!s_outfile.empty() ? FileStream(s_outfile)
: FileStream(stdout));
result = WriteWat(&stream, &module, s_write_wat_options);
}
}
FormatErrorsToFile(errors, Location::Type::Binary);
}
return result != Result::Ok;
}
int main(int argc, char** argv) {
WABT_TRY
return ProgramMain(argc, argv);
WABT_CATCH_BAD_ALLOC_AND_EXIT
}
|
