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psalm/src/Psalm/Internal/Analyzer/Statements/Expression/BooleanNotAnalyzer.php

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<?php
namespace Psalm\Internal\Analyzer\Statements\Expression;
use PhpParser;
use Psalm\Internal\Analyzer\Statements\ExpressionAnalyzer;
use Psalm\Internal\Analyzer\StatementsAnalyzer;
use Psalm\Context;
use Psalm\Type;
class BooleanNotAnalyzer
{
public static function analyze(
StatementsAnalyzer $statements_analyzer,
PhpParser\Node\Expr\BooleanNot $stmt,
Context $context
) : bool {
$stmt_type = Type::getBool();
$statements_analyzer->node_data->setType($stmt, $stmt_type);
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$inside_negation = $context->inside_negation;
$context->inside_negation = !$inside_negation;
$result = ExpressionAnalyzer::analyze($statements_analyzer, $stmt->expr, $context);
$context->inside_negation = $inside_negation;
$expr_type = $statements_analyzer->node_data->getType($stmt->expr);
if ($expr_type) {
$stmt_type->parent_nodes = $expr_type->parent_nodes;
}
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return $result;
}
}