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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
#!/usr/bin/php
<?php
foreach ([__DIR__ . '/../share/php/PhpParser/autoload.php', __DIR__ . '/../../../autoload.php', __DIR__ . '/../vendor/autoload.php'] as $file) {
if (file_exists($file)) {
require $file;
break;
}
}
ini_set('xdebug.max_nesting_level', 3000);
// Disable Xdebug var_dump() output truncation
ini_set('xdebug.var_display_max_children', -1);
ini_set('xdebug.var_display_max_data', -1);
ini_set('xdebug.var_display_max_depth', -1);
list($operations, $files, $attributes) = parseArgs($argv);
/* Dump nodes by default */
if (empty($operations)) {
$operations[] = 'dump';
}
if (empty($files)) {
showHelp("Must specify at least one file.");
}
$parser = (new PhpParser\ParserFactory())->createForVersion($attributes['version']);
$dumper = new PhpParser\NodeDumper([
'dumpComments' => true,
'dumpPositions' => $attributes['with-positions'],
]);
$prettyPrinter = new PhpParser\PrettyPrinter\Standard;
$traverser = new PhpParser\NodeTraverser();
$traverser->addVisitor(new PhpParser\NodeVisitor\NameResolver);
foreach ($files as $file) {
if ($file === '-') {
$code = file_get_contents('php://stdin');
fwrite(STDERR, "====> Stdin:\n");
} else if (strpos($file, '<?php') === 0) {
$code = $file;
fwrite(STDERR, "====> Code $code\n");
} else {
if (!file_exists($file)) {
fwrite(STDERR, "File $file does not exist.\n");
exit(1);
}
$code = file_get_contents($file);
fwrite(STDERR, "====> File $file:\n");
}
if ($attributes['with-recovery']) {
$errorHandler = new PhpParser\ErrorHandler\Collecting;
$stmts = $parser->parse($code, $errorHandler);
foreach ($errorHandler->getErrors() as $error) {
$message = formatErrorMessage($error, $code, $attributes['with-column-info']);
fwrite(STDERR, $message . "\n");
}
if (null === $stmts) {
continue;
}
} else {
try {
$stmts = $parser->parse($code);
} catch (PhpParser\Error $error) {
$message = formatErrorMessage($error, $code, $attributes['with-column-info']);
fwrite(STDERR, $message . "\n");
exit(1);
}
}
foreach ($operations as $operation) {
if ('dump' === $operation) {
fwrite(STDERR, "==> Node dump:\n");
echo $dumper->dump($stmts, $code), "\n";
} elseif ('pretty-print' === $operation) {
fwrite(STDERR, "==> Pretty print:\n");
echo $prettyPrinter->prettyPrintFile($stmts), "\n";
} elseif ('json-dump' === $operation) {
fwrite(STDERR, "==> JSON dump:\n");
echo json_encode($stmts, JSON_PRETTY_PRINT), "\n";
} elseif ('var-dump' === $operation) {
fwrite(STDERR, "==> var_dump():\n");
var_dump($stmts);
} elseif ('resolve-names' === $operation) {
fwrite(STDERR, "==> Resolved names.\n");
$stmts = $traverser->traverse($stmts);
}
}
}
function formatErrorMessage(PhpParser\Error $e, $code, $withColumnInfo) {
if ($withColumnInfo && $e->hasColumnInfo()) {
return $e->getMessageWithColumnInfo($code);
} else {
return $e->getMessage();
}
}
function showHelp($error = '') {
if ($error) {
fwrite(STDERR, $error . "\n\n");
}
fwrite($error ? STDERR : STDOUT, <<<'OUTPUT'
Usage: php-parse [operations] file1.php [file2.php ...]
or: php-parse [operations] "<?php code"
Turn PHP source code into an abstract syntax tree.
Operations is a list of the following options (--dump by default):
-d, --dump Dump nodes using NodeDumper
-p, --pretty-print Pretty print file using PrettyPrinter\Standard
-j, --json-dump Print json_encode() result
--var-dump var_dump() nodes (for exact structure)
-N, --resolve-names Resolve names using NodeVisitor\NameResolver
-c, --with-column-info Show column-numbers for errors (if available)
-P, --with-positions Show positions in node dumps
-r, --with-recovery Use parsing with error recovery
--version=VERSION Target specific PHP version (default: newest)
-h, --help Display this page
Example:
php-parse -d -p -N -d file.php
Dumps nodes, pretty prints them, then resolves names and dumps them again.
OUTPUT
);
exit($error ? 1 : 0);
}
function parseArgs($args) {
$operations = [];
$files = [];
$attributes = [
'with-column-info' => false,
'with-positions' => false,
'with-recovery' => false,
'version' => PhpParser\PhpVersion::getNewestSupported(),
];
array_shift($args);
$parseOptions = true;
foreach ($args as $arg) {
if (!$parseOptions) {
$files[] = $arg;
continue;
}
switch ($arg) {
case '--dump':
case '-d':
$operations[] = 'dump';
break;
case '--pretty-print':
case '-p':
$operations[] = 'pretty-print';
break;
case '--json-dump':
case '-j':
$operations[] = 'json-dump';
break;
case '--var-dump':
$operations[] = 'var-dump';
break;
case '--resolve-names':
case '-N';
$operations[] = 'resolve-names';
break;
case '--with-column-info':
case '-c';
$attributes['with-column-info'] = true;
break;
case '--with-positions':
case '-P':
$attributes['with-positions'] = true;
break;
case '--with-recovery':
case '-r':
$attributes['with-recovery'] = true;
break;
case '--help':
case '-h';
showHelp();
break;
case '--':
$parseOptions = false;
break;
default:
if (preg_match('/^--version=(.*)$/', $arg, $matches)) {
$attributes['version'] = PhpParser\PhpVersion::fromString($matches[1]);
} elseif ($arg[0] === '-' && \strlen($arg[0]) > 1) {
showHelp("Invalid operation $arg.");
} else {
$files[] = $arg;
}
}
}
return [$operations, $files, $attributes];
}
|
