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<?php declare(strict_types=1);
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namespace PhpParser\Node\Expr;
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use PhpParser\Node\Expr;
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abstract class BinaryOp extends Expr
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{
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    /** @var Expr The left hand side expression */
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    public $left;
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    /** @var Expr The right hand side expression */
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    public $right;
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    /**
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     * Constructs a binary operator node.
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     *
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     * @param Expr  $left       The left hand side expression
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     * @param Expr  $right      The right hand side expression
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     * @param array $attributes Additional attributes
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     */
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    public function __construct(Expr $left, Expr $right, array $attributes = []) {
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        $this->attributes = $attributes;
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        $this->left = $left;
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        $this->right = $right;
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    }
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    public function getSubNodeNames() : array {
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        return ['left', 'right'];
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    }
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    /**
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     * Get the operator sigil for this binary operation.
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     *
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     * In the case there are multiple possible sigils for an operator, this method does not
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     * necessarily return the one used in the parsed code.
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     *
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     * @return string
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     */
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    abstract public function getOperatorSigil() : string;
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}