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Simplify NodeTraverser->traverseArray()

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Markus Staab 2024-12-30 09:26:37 +01:00 committed by Nikita Popov
parent 6478c5ac53
commit 74a361814d
1 changed files with 65 additions and 62 deletions
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127
lib/PhpParser/NodeTraverser.php
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@ -176,77 +176,80 @@ class NodeTraverser implements NodeTraverserInterface {
$doNodes = [];
foreach ($nodes as $i => $node) {
if ($node instanceof Node) {
$traverseChildren = true;
$visitorIndex = -1;
foreach ($this->visitors as $visitorIndex => $visitor) {
$return = $visitor->enterNode($node);
if (null !== $return) {
if ($return instanceof Node) {
$this->ensureReplacementReasonable($node, $return);
$nodes[$i] = $node = $return;
} elseif (\is_array($return)) {
$doNodes[] = [$i, $return];
continue 2;
} elseif (NodeVisitor::REMOVE_NODE === $return) {
$doNodes[] = [$i, []];
continue 2;
} elseif (NodeVisitor::DONT_TRAVERSE_CHILDREN === $return) {
$traverseChildren = false;
} elseif (NodeVisitor::DONT_TRAVERSE_CURRENT_AND_CHILDREN === $return) {
$traverseChildren = false;
break;
} elseif (NodeVisitor::STOP_TRAVERSAL === $return) {
$this->stopTraversal = true;
break 2;
} elseif (NodeVisitor::REPLACE_WITH_NULL === $return) {
throw new \LogicException(
'REPLACE_WITH_NULL can not be used if the parent structure is an array');
} else {
throw new \LogicException(
'enterNode() returned invalid value of type ' . gettype($return)
);
}
}
if (!$node instanceof Node) {
if (\is_array($node)) {
throw new \LogicException('Invalid node structure: Contains nested arrays');
}
continue;
}
if ($traverseChildren) {
$this->traverseNode($node);
if ($this->stopTraversal) {
$traverseChildren = true;
$visitorIndex = -1;
foreach ($this->visitors as $visitorIndex => $visitor) {
$return = $visitor->enterNode($node);
if (null !== $return) {
if ($return instanceof Node) {
$this->ensureReplacementReasonable($node, $return);
$nodes[$i] = $node = $return;
} elseif (\is_array($return)) {
$doNodes[] = [$i, $return];
continue 2;
} elseif (NodeVisitor::REMOVE_NODE === $return) {
$doNodes[] = [$i, []];
continue 2;
} elseif (NodeVisitor::DONT_TRAVERSE_CHILDREN === $return) {
$traverseChildren = false;
} elseif (NodeVisitor::DONT_TRAVERSE_CURRENT_AND_CHILDREN === $return) {
$traverseChildren = false;
break;
} elseif (NodeVisitor::STOP_TRAVERSAL === $return) {
$this->stopTraversal = true;
break 2;
} elseif (NodeVisitor::REPLACE_WITH_NULL === $return) {
throw new \LogicException(
'REPLACE_WITH_NULL can not be used if the parent structure is an array');
} else {
throw new \LogicException(
'enterNode() returned invalid value of type ' . gettype($return)
);
}
}
}
for (; $visitorIndex >= 0; --$visitorIndex) {
$visitor = $this->visitors[$visitorIndex];
$return = $visitor->leaveNode($node);
if ($traverseChildren) {
$this->traverseNode($node);
if ($this->stopTraversal) {
break;
}
}
if (null !== $return) {
if ($return instanceof Node) {
$this->ensureReplacementReasonable($node, $return);
$nodes[$i] = $node = $return;
} elseif (\is_array($return)) {
$doNodes[] = [$i, $return];
break;
} elseif (NodeVisitor::REMOVE_NODE === $return) {
$doNodes[] = [$i, []];
break;
} elseif (NodeVisitor::STOP_TRAVERSAL === $return) {
$this->stopTraversal = true;
break 2;
} elseif (NodeVisitor::REPLACE_WITH_NULL === $return) {
throw new \LogicException(
'REPLACE_WITH_NULL can not be used if the parent structure is an array');
} else {
throw new \LogicException(
'leaveNode() returned invalid value of type ' . gettype($return)
);
}
for (; $visitorIndex >= 0; --$visitorIndex) {
$visitor = $this->visitors[$visitorIndex];
$return = $visitor->leaveNode($node);
if (null !== $return) {
if ($return instanceof Node) {
$this->ensureReplacementReasonable($node, $return);
$nodes[$i] = $node = $return;
} elseif (\is_array($return)) {
$doNodes[] = [$i, $return];
break;
} elseif (NodeVisitor::REMOVE_NODE === $return) {
$doNodes[] = [$i, []];
break;
} elseif (NodeVisitor::STOP_TRAVERSAL === $return) {
$this->stopTraversal = true;
break 2;
} elseif (NodeVisitor::REPLACE_WITH_NULL === $return) {
throw new \LogicException(
'REPLACE_WITH_NULL can not be used if the parent structure is an array');
} else {
throw new \LogicException(
'leaveNode() returned invalid value of type ' . gettype($return)
);
}
}
} elseif (\is_array($node)) {
throw new \LogicException('Invalid node structure: Contains nested arrays');
}
}