4 * This file is part of Psy Shell.
6 * (c) 2012-2018 Justin Hileman
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
15 use PhpParser\Node\Arg;
16 use PhpParser\Node\Expr\Assign;
17 use PhpParser\Node\Expr\ClassConstFetch;
18 use PhpParser\Node\Expr\MethodCall;
19 use PhpParser\Node\Expr\PropertyFetch;
20 use PhpParser\Node\Expr\StaticCall;
21 use PhpParser\Node\Expr\StaticPropertyFetch;
22 use PhpParser\Node\Identifier;
23 use PhpParser\Node\Name;
24 use PhpParser\Node\Name\FullyQualified as FullyQualifiedName;
25 use PhpParser\Node\Scalar\String_;
26 use PhpParser\NodeVisitorAbstract;
29 * A PHP Parser node visitor which rewrites property and method access to use
30 * the Psy\Sudo visibility bypass methods.
32 * @todo handle assigning by reference
34 class SudoVisitor extends NodeVisitorAbstract
36 const SUDO_CLASS = 'Psy\Sudo';
38 const PROPERTY_FETCH = 'fetchProperty';
39 const PROPERTY_ASSIGN = 'assignProperty';
40 const METHOD_CALL = 'callMethod';
41 const STATIC_PROPERTY_FETCH = 'fetchStaticProperty';
42 const STATIC_PROPERTY_ASSIGN = 'assignStaticProperty';
43 const STATIC_CALL = 'callStatic';
44 const CLASS_CONST_FETCH = 'fetchClassConst';
49 public function enterNode(Node $node)
51 if ($node instanceof PropertyFetch) {
52 $name = $node->name instanceof Identifier ? $node->name->toString() : $node->name;
55 is_string($name) ? new String_($name) : $name,
58 return $this->prepareCall(self::PROPERTY_FETCH, $args);
59 } elseif ($node instanceof Assign && $node->var instanceof PropertyFetch) {
61 $name = $target->name instanceof Identifier ? $target->name->toString() : $target->name;
64 is_string($name) ? new String_($name) : $name,
68 return $this->prepareCall(self::PROPERTY_ASSIGN, $args);
69 } elseif ($node instanceof MethodCall) {
70 $name = $node->name instanceof Identifier ? $node->name->toString() : $node->name;
72 array_unshift($args, new Arg(is_string($name) ? new String_($name) : $name));
73 array_unshift($args, new Arg($node->var));
75 // not using prepareCall because the $node->args we started with are already Arg instances
76 return new StaticCall(new FullyQualifiedName(self::SUDO_CLASS), self::METHOD_CALL, $args);
77 } elseif ($node instanceof StaticPropertyFetch) {
78 $class = $node->class instanceof Name ? $node->class->toString() : $node->class;
79 $name = $node->name instanceof Identifier ? $node->name->toString() : $node->name;
81 is_string($class) ? new String_($class) : $class,
82 is_string($name) ? new String_($name) : $name,
85 return $this->prepareCall(self::STATIC_PROPERTY_FETCH, $args);
86 } elseif ($node instanceof Assign && $node->var instanceof StaticPropertyFetch) {
88 $class = $target->class instanceof Name ? $target->class->toString() : $target->class;
89 $name = $target->name instanceof Identifier ? $target->name->toString() : $target->name;
91 is_string($class) ? new String_($class) : $class,
92 is_string($name) ? new String_($name) : $name,
96 return $this->prepareCall(self::STATIC_PROPERTY_ASSIGN, $args);
97 } elseif ($node instanceof StaticCall) {
99 $class = $node->class instanceof Name ? $node->class->toString() : $node->class;
100 $name = $node->name instanceof Identifier ? $node->name->toString() : $node->name;
101 array_unshift($args, new Arg(is_string($name) ? new String_($name) : $name));
102 array_unshift($args, new Arg(is_string($class) ? new String_($class) : $class));
104 // not using prepareCall because the $node->args we started with are already Arg instances
105 return new StaticCall(new FullyQualifiedName(self::SUDO_CLASS), self::STATIC_CALL, $args);
106 } elseif ($node instanceof ClassConstFetch) {
107 $class = $node->class instanceof Name ? $node->class->toString() : $node->class;
108 $name = $node->name instanceof Identifier ? $node->name->toString() : $node->name;
110 is_string($class) ? new String_($class) : $class,
111 is_string($name) ? new String_($name) : $name,
114 return $this->prepareCall(self::CLASS_CONST_FETCH, $args);
118 private function prepareCall($method, $args)
120 return new StaticCall(new FullyQualifiedName(self::SUDO_CLASS), $method, array_map(function ($arg) {
121 return new Arg($arg);