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<?php |
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namespace PeacefulBit\Slate\Parser\Nodes; |
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use function Nerd\Common\Strings\toString; |
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use PeacefulBit\Slate\Core\Frame; |
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use PeacefulBit\Slate\Exceptions\EvaluatorException; |
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class CallExpression extends Node |
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{ |
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/** |
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* @var Node |
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*/ |
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private $callee; |
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/** |
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* @var Node[] |
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*/ |
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private $arguments; |
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/** |
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* @param Node $callee |
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* @param Node[] $arguments |
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*/ |
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public function __construct(Node $callee, array $arguments) |
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{ |
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$this->callee = $callee; |
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$this->arguments = $arguments; |
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} |
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/** |
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* @return Node |
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*/ |
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public function getCallee(): Node |
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{ |
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return $this->callee; |
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} |
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/** |
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* @return Node[] |
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*/ |
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public function getArguments(): array |
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{ |
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return $this->arguments; |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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$prefix = '(' . strval($this->getCallee()) . ' '; |
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$suffix = ')'; |
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$arguments = array_map('strval', $this->getArguments()); |
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return $prefix . implode(' ', $arguments) . $suffix; |
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} |
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/** |
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* @param Frame $frame |
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* @return mixed |
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* @throws EvaluatorException |
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*/ |
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public function evaluate(Frame $frame) |
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{ |
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$callee = $frame->evaluate($this->getCallee()); |
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if (!$callee instanceof CallableNode) { |
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throw new EvaluatorException(sprintf("%s is not callable", toString($callee))); |
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} |
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return $callee->call($frame, $this->getArguments()); |
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} |
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/** |
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* @param Frame $frame |
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* @return CallExpression |
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*/ |
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public function close(Frame $frame) |
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{ |
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// $closedArgs = array_map(function (Node $argument) use ($frame) { |
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// return $argument instanceof Identifier ? $argument->evaluate($frame) : $argument; |
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// }, $this->getArguments()); |
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return new self($this->getCallee(), $this->getArguments()); |
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} |
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} |
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peacefulbit /
packet-lite
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.