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
|
/*
* Copyright 2018 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.
*/
//
// Command line helpers.
//
#include "support/path.h"
#ifdef USE_WSTRING_PATHS
#include "windows.h"
#endif
namespace wasm::Path {
#ifdef USE_WSTRING_PATHS
PathString to_path(const std::string& s) { return string_to_wstring(s); }
std::wstring string_to_wstring(const std::string& s) {
const char* inptr = s.data();
size_t inlen = s.size();
size_t outlen = MultiByteToWideChar(CP_UTF8, 0, inptr, inlen, NULL, 0);
std::wstring outstr(outlen, 0);
const LPWSTR outptr = outstr.data();
MultiByteToWideChar(CP_UTF8, 0, inptr, inlen, outptr, outlen);
return outstr;
}
std::string wstring_to_string(const std::wstring& s) {
const wchar_t* inptr = s.data();
size_t inlen = s.size();
size_t outlen =
WideCharToMultiByte(CP_UTF8, 0, inptr, inlen, NULL, 0, NULL, NULL);
std::string outstr(outlen, 0);
const LPSTR outptr = outstr.data();
WideCharToMultiByte(CP_UTF8, 0, inptr, inlen, outptr, outlen, NULL, NULL);
return outstr;
}
#else
PathString to_path(const std::string& s) { return s; }
#endif
char getPathSeparator() {
// TODO: use c++17's path separator
// http://en.cppreference.com/w/cpp/experimental/fs/path
#if defined(WIN32) || defined(_WIN32)
return '\\';
#else
return '/';
#endif
}
static std::string getAllPathSeparators() {
// The canonical separator on Windows is `\`, but it also accepts `/`.
#if defined(WIN32) || defined(_WIN32)
return "\\/";
#else
return "/";
#endif
}
std::string getDirName(const std::string& path) {
for (char c : getAllPathSeparators()) {
auto sep = path.rfind(c);
if (sep != std::string::npos) {
return path.substr(0, sep);
}
}
return "";
}
std::string getBaseName(const std::string& path) {
for (char c : getAllPathSeparators()) {
auto sep = path.rfind(c);
if (sep != std::string::npos) {
return path.substr(sep + 1);
}
}
return path;
}
std::string getBinaryenRoot() {
auto* envVar = getenv("BINARYEN_ROOT");
if (envVar) {
return envVar;
}
return ".";
}
static std::string binDir;
std::string getBinaryenBinDir() {
if (binDir.empty()) {
return getBinaryenRoot() + getPathSeparator() + "bin" + getPathSeparator();
} else {
return binDir;
}
}
void setBinaryenBinDir(const std::string& dir) {
binDir = dir;
if (binDir.empty() || binDir.back() != getPathSeparator()) {
binDir += getPathSeparator();
}
}
// Gets the path to a binaryen binary tool, like wasm-opt
std::string getBinaryenBinaryTool(const std::string& name) {
return getBinaryenBinDir() + name;
}
} // namespace wasm::Path
|
