104 lines
4.4 KiB
PHP
104 lines
4.4 KiB
PHP
<?php
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declare(strict_types=1);
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namespace LanguageServer;
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use Microsoft\PhpParser as Tolerant;
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class ParserHelpers {
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public static function isConstantFetch(Tolerant\Node $node) : bool {
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$parent = $node->parent;
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return
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(
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$node instanceof Tolerant\Node\QualifiedName &&
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(
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// $node->parent instanceof Tolerant\Node\Statement\ExpressionStatement ||
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$parent instanceof Tolerant\Node\Expression ||
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$parent instanceof Tolerant\Node\DelimitedList\ExpressionList ||
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$parent instanceof Tolerant\Node\ArrayElement ||
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($parent instanceof Tolerant\Node\Parameter && $node->parent->default === $node) ||
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$parent instanceof Tolerant\Node\StatementNode ||
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$parent instanceof Tolerant\Node\CaseStatementNode
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) &&
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!(
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$parent instanceof Tolerant\Node\Expression\MemberAccessExpression ||
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$parent instanceof Tolerant\Node\Expression\CallExpression ||
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$parent instanceof Tolerant\Node\Expression\ObjectCreationExpression ||
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$parent instanceof Tolerant\Node\Expression\ScopedPropertyAccessExpression ||
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self::isFunctionLike($parent) ||
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(
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$parent instanceof Tolerant\Node\Expression\BinaryExpression &&
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$parent->operator->kind === Tolerant\TokenKind::InstanceOfKeyword
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)
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));
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}
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public static function getFunctionLikeDeclarationFromParameter(Tolerant\Node\Parameter $node) {
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return $node->parent->parent;
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}
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public static function isFunctionLike(Tolerant\Node $node) {
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return
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$node instanceof Tolerant\Node\Statement\FunctionDeclaration ||
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$node instanceof Tolerant\Node\MethodDeclaration ||
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$node instanceof Tolerant\Node\Expression\AnonymousFunctionCreationExpression;
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}
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public static function isBooleanExpression($expression) : bool {
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if (!($expression instanceof Tolerant\Node\Expression\BinaryExpression)) {
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return false;
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}
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switch ($expression->operator->kind) {
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case Tolerant\TokenKind::InstanceOfKeyword:
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case Tolerant\TokenKind::GreaterThanToken:
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case Tolerant\TokenKind::GreaterThanEqualsToken:
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case Tolerant\TokenKind::LessThanToken:
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case Tolerant\TokenKind::LessThanEqualsToken:
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case Tolerant\TokenKind::AndKeyword:
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case Tolerant\TokenKind::AmpersandAmpersandToken:
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case Tolerant\TokenKind::LessThanEqualsGreaterThanToken:
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case Tolerant\TokenKind::OrKeyword:
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case Tolerant\TokenKind::BarBarToken:
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case Tolerant\TokenKind::XorKeyword:
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case Tolerant\TokenKind::ExclamationEqualsEqualsToken:
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case Tolerant\TokenKind::ExclamationEqualsToken:
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case Tolerant\TokenKind::CaretToken:
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case Tolerant\TokenKind::EqualsEqualsEqualsToken:
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case Tolerant\TokenKind::EqualsToken:
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return true;
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}
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return false;
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}
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/**
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* Tries to get the parent property declaration given a Node
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* @param Tolerant\Node $node
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* @return Tolerant\Node\PropertyDeclaration | null $node
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*/
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public static function tryGetPropertyDeclaration(Tolerant\Node $node) {
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if ($node instanceof Tolerant\Node\Expression\Variable &&
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(($propertyDeclaration = $node->parent->parent) instanceof Tolerant\Node\PropertyDeclaration ||
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($propertyDeclaration = $propertyDeclaration->parent) instanceof Tolerant\Node\PropertyDeclaration)
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) {
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return $propertyDeclaration;
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}
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return null;
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}
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/**
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* Tries to get the parent ConstDeclaration or ClassConstDeclaration given a Node
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* @param Tolerant\Node $node
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* @return Tolerant\Node\Statement\ConstDeclaration | Tolerant\Node\ClassConstDeclaration | null $node
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*/
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public static function tryGetConstOrClassConstDeclaration(Tolerant\Node $node) {
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if (
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$node instanceof Tolerant\Node\ConstElement && (
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($constDeclaration = $node->parent->parent) instanceof Tolerant\Node\ClassConstDeclaration ||
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$constDeclaration instanceof Tolerant\Node\Statement\ConstDeclaration )
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) {
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return $constDeclaration;
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}
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return null;
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}
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} |