1
|
<?php
|
2
|
|
3
|
/*
|
4
|
* This file is part of Twig.
|
5
|
*
|
6
|
* (c) 2012 Fabien Potencier
|
7
|
*
|
8
|
* For the full copyright and license information, please view the LICENSE
|
9
|
* file that was distributed with this source code.
|
10
|
*/
|
11
|
abstract class Twig_Node_Expression_Call extends Twig_Node_Expression
|
12
|
{
|
13
|
protected function compileCallable(Twig_Compiler $compiler)
|
14
|
{
|
15
|
$closingParenthesis = false;
|
16
|
if ($this->hasAttribute('callable') && $callable = $this->getAttribute('callable')) {
|
17
|
if (is_string($callable)) {
|
18
|
$compiler->raw($callable);
|
19
|
} elseif (is_array($callable) && $callable[0] instanceof Twig_ExtensionInterface) {
|
20
|
$compiler->raw(sprintf('$this->env->getExtension(\'%s\')->%s', $callable[0]->getName(), $callable[1]));
|
21
|
} else {
|
22
|
$type = ucfirst($this->getAttribute('type'));
|
23
|
$compiler->raw(sprintf('call_user_func_array($this->env->get%s(\'%s\')->getCallable(), array', $type, $this->getAttribute('name')));
|
24
|
$closingParenthesis = true;
|
25
|
}
|
26
|
} else {
|
27
|
$compiler->raw($this->getAttribute('thing')->compile());
|
28
|
}
|
29
|
|
30
|
$this->compileArguments($compiler);
|
31
|
|
32
|
if ($closingParenthesis) {
|
33
|
$compiler->raw(')');
|
34
|
}
|
35
|
}
|
36
|
|
37
|
protected function compileArguments(Twig_Compiler $compiler)
|
38
|
{
|
39
|
$compiler->raw('(');
|
40
|
|
41
|
$first = true;
|
42
|
|
43
|
if ($this->hasAttribute('needs_environment') && $this->getAttribute('needs_environment')) {
|
44
|
$compiler->raw('$this->env');
|
45
|
$first = false;
|
46
|
}
|
47
|
|
48
|
if ($this->hasAttribute('needs_context') && $this->getAttribute('needs_context')) {
|
49
|
if (!$first) {
|
50
|
$compiler->raw(', ');
|
51
|
}
|
52
|
$compiler->raw('$context');
|
53
|
$first = false;
|
54
|
}
|
55
|
|
56
|
if ($this->hasAttribute('arguments')) {
|
57
|
foreach ($this->getAttribute('arguments') as $argument) {
|
58
|
if (!$first) {
|
59
|
$compiler->raw(', ');
|
60
|
}
|
61
|
$compiler->string($argument);
|
62
|
$first = false;
|
63
|
}
|
64
|
}
|
65
|
|
66
|
if ($this->hasNode('node')) {
|
67
|
if (!$first) {
|
68
|
$compiler->raw(', ');
|
69
|
}
|
70
|
$compiler->subcompile($this->getNode('node'));
|
71
|
$first = false;
|
72
|
}
|
73
|
|
74
|
if ($this->hasNode('arguments') && null !== $this->getNode('arguments')) {
|
75
|
$callable = $this->hasAttribute('callable') ? $this->getAttribute('callable') : null;
|
76
|
|
77
|
$arguments = $this->getArguments($callable, $this->getNode('arguments'));
|
78
|
|
79
|
foreach ($arguments as $node) {
|
80
|
if (!$first) {
|
81
|
$compiler->raw(', ');
|
82
|
}
|
83
|
$compiler->subcompile($node);
|
84
|
$first = false;
|
85
|
}
|
86
|
}
|
87
|
|
88
|
$compiler->raw(')');
|
89
|
}
|
90
|
|
91
|
protected function getArguments($callable, $arguments)
|
92
|
{
|
93
|
$callType = $this->getAttribute('type');
|
94
|
$callName = $this->getAttribute('name');
|
95
|
|
96
|
$parameters = array();
|
97
|
$named = false;
|
98
|
foreach ($arguments as $name => $node) {
|
99
|
if (!is_int($name)) {
|
100
|
$named = true;
|
101
|
$name = $this->normalizeName($name);
|
102
|
} elseif ($named) {
|
103
|
throw new Twig_Error_Syntax(sprintf('Positional arguments cannot be used after named arguments for %s "%s".', $callType, $callName));
|
104
|
}
|
105
|
|
106
|
$parameters[$name] = $node;
|
107
|
}
|
108
|
|
109
|
$isVariadic = $this->hasAttribute('is_variadic') && $this->getAttribute('is_variadic');
|
110
|
if (!$named && !$isVariadic) {
|
111
|
return $parameters;
|
112
|
}
|
113
|
|
114
|
if (!$callable) {
|
115
|
if ($named) {
|
116
|
$message = sprintf('Named arguments are not supported for %s "%s".', $callType, $callName);
|
117
|
} else {
|
118
|
$message = sprintf('Arbitrary positional arguments are not supported for %s "%s".', $callType, $callName);
|
119
|
}
|
120
|
|
121
|
throw new LogicException($message);
|
122
|
}
|
123
|
|
124
|
// manage named arguments
|
125
|
$callableParameters = $this->getCallableParameters($callable, $isVariadic);
|
126
|
$arguments = array();
|
127
|
$names = array();
|
128
|
$missingArguments = array();
|
129
|
$optionalArguments = array();
|
130
|
$pos = 0;
|
131
|
foreach ($callableParameters as $callableParameter) {
|
132
|
$names[] = $name = $this->normalizeName($callableParameter->name);
|
133
|
|
134
|
if (array_key_exists($name, $parameters)) {
|
135
|
if (array_key_exists($pos, $parameters)) {
|
136
|
throw new Twig_Error_Syntax(sprintf('Argument "%s" is defined twice for %s "%s".', $name, $callType, $callName));
|
137
|
}
|
138
|
|
139
|
if (!empty($missingArguments)) {
|
140
|
throw new Twig_Error_Syntax(sprintf(
|
141
|
'Argument "%s" could not be assigned for %s "%s(%s)" because it is mapped to an internal PHP function which cannot determine default value for optional argument%s "%s".',
|
142
|
$name, $callType, $callName, implode(', ', $names), count($missingArguments) > 1 ? 's' : '', implode('", "', $missingArguments))
|
143
|
);
|
144
|
}
|
145
|
|
146
|
$arguments = array_merge($arguments, $optionalArguments);
|
147
|
$arguments[] = $parameters[$name];
|
148
|
unset($parameters[$name]);
|
149
|
$optionalArguments = array();
|
150
|
} elseif (array_key_exists($pos, $parameters)) {
|
151
|
$arguments = array_merge($arguments, $optionalArguments);
|
152
|
$arguments[] = $parameters[$pos];
|
153
|
unset($parameters[$pos]);
|
154
|
$optionalArguments = array();
|
155
|
++$pos;
|
156
|
} elseif ($callableParameter->isDefaultValueAvailable()) {
|
157
|
$optionalArguments[] = new Twig_Node_Expression_Constant($callableParameter->getDefaultValue(), -1);
|
158
|
} elseif ($callableParameter->isOptional()) {
|
159
|
if (empty($parameters)) {
|
160
|
break;
|
161
|
} else {
|
162
|
$missingArguments[] = $name;
|
163
|
}
|
164
|
} else {
|
165
|
throw new Twig_Error_Syntax(sprintf('Value for argument "%s" is required for %s "%s".', $name, $callType, $callName));
|
166
|
}
|
167
|
}
|
168
|
|
169
|
if ($isVariadic) {
|
170
|
$arbitraryArguments = new Twig_Node_Expression_Array(array(), -1);
|
171
|
foreach ($parameters as $key => $value) {
|
172
|
if (is_int($key)) {
|
173
|
$arbitraryArguments->addElement($value);
|
174
|
} else {
|
175
|
$arbitraryArguments->addElement($value, new Twig_Node_Expression_Constant($key, -1));
|
176
|
}
|
177
|
unset($parameters[$key]);
|
178
|
}
|
179
|
|
180
|
if ($arbitraryArguments->count()) {
|
181
|
$arguments = array_merge($arguments, $optionalArguments);
|
182
|
$arguments[] = $arbitraryArguments;
|
183
|
}
|
184
|
}
|
185
|
|
186
|
if (!empty($parameters)) {
|
187
|
$unknownParameter = null;
|
188
|
foreach ($parameters as $parameter) {
|
189
|
if ($parameter instanceof Twig_Node) {
|
190
|
$unknownParameter = $parameter;
|
191
|
break;
|
192
|
}
|
193
|
}
|
194
|
|
195
|
throw new Twig_Error_Syntax(sprintf(
|
196
|
'Unknown argument%s "%s" for %s "%s(%s)".',
|
197
|
count($parameters) > 1 ? 's' : '', implode('", "', array_keys($parameters)), $callType, $callName, implode(', ', $names)
|
198
|
), $unknownParameter ? $unknownParameter->getLine() : -1);
|
199
|
}
|
200
|
|
201
|
return $arguments;
|
202
|
}
|
203
|
|
204
|
protected function normalizeName($name)
|
205
|
{
|
206
|
return strtolower(preg_replace(array('/([A-Z]+)([A-Z][a-z])/', '/([a-z\d])([A-Z])/'), array('\\1_\\2', '\\1_\\2'), $name));
|
207
|
}
|
208
|
|
209
|
private function getCallableParameters($callable, $isVariadic)
|
210
|
{
|
211
|
if (is_array($callable)) {
|
212
|
$r = new ReflectionMethod($callable[0], $callable[1]);
|
213
|
} elseif (is_object($callable) && !$callable instanceof Closure) {
|
214
|
$r = new ReflectionObject($callable);
|
215
|
$r = $r->getMethod('__invoke');
|
216
|
} elseif (is_string($callable) && false !== strpos($callable, '::')) {
|
217
|
$r = new ReflectionMethod($callable);
|
218
|
} else {
|
219
|
$r = new ReflectionFunction($callable);
|
220
|
}
|
221
|
|
222
|
$parameters = $r->getParameters();
|
223
|
if ($this->hasNode('node')) {
|
224
|
array_shift($parameters);
|
225
|
}
|
226
|
if ($this->hasAttribute('needs_environment') && $this->getAttribute('needs_environment')) {
|
227
|
array_shift($parameters);
|
228
|
}
|
229
|
if ($this->hasAttribute('needs_context') && $this->getAttribute('needs_context')) {
|
230
|
array_shift($parameters);
|
231
|
}
|
232
|
if ($this->hasAttribute('arguments') && null !== $this->getAttribute('arguments')) {
|
233
|
foreach ($this->getAttribute('arguments') as $argument) {
|
234
|
array_shift($parameters);
|
235
|
}
|
236
|
}
|
237
|
if ($isVariadic) {
|
238
|
$argument = end($parameters);
|
239
|
if ($argument && $argument->isArray() && $argument->isDefaultValueAvailable() && array() === $argument->getDefaultValue()) {
|
240
|
array_pop($parameters);
|
241
|
} else {
|
242
|
$callableName = $r->name;
|
243
|
if ($r->getDeclaringClass()) {
|
244
|
$callableName = $r->getDeclaringClass()->name.'::'.$callableName;
|
245
|
}
|
246
|
|
247
|
throw new LogicException(sprintf('The last parameter of "%s" for %s "%s" must be an array with default value, eg. "array $arg = array()".', $callableName, $this->getAttribute('type'), $this->getAttribute('name')));
|
248
|
}
|
249
|
}
|
250
|
|
251
|
return $parameters;
|
252
|
}
|
253
|
}
|