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<?php |
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/** |
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* @author Patsura Dmitry https://github.com/ovr <[email protected]> |
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*/ |
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namespace PHPSA\Compiler; |
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use InvalidArgumentException; |
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use PHPSA\Check; |
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use PHPSA\CompiledExpression; |
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use PHPSA\Context; |
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use PhpParser\Node; |
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use PHPSA\Definition\ClassDefinition; |
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use PHPSA\Exception\RuntimeException; |
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use PHPSA\Variable; |
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use PHPSA\Compiler\Expression\AbstractExpressionCompiler; |
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class Expression |
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{ |
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/** |
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* @var Context |
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*/ |
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protected $context; |
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/** |
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* @param Context $context |
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*/ |
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public function __construct(Context $context) |
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{ |
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$this->context = $context; |
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} |
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/** |
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* @param $expr |
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* @return ExpressionCompilerInterface|AbstractExpressionCompiler |
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*/ |
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protected function factory($expr) |
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{ |
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switch (get_class($expr)) { |
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/** |
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* Call(s) |
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*/ |
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case 'PhpParser\Node\Expr\MethodCall': |
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return new Expression\MethodCall(); |
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case 'PhpParser\Node\Expr\FuncCall': |
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return new Expression\FunctionCall(); |
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case 'PhpParser\Node\Expr\StaticCall': |
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return new Expression\StaticCall(); |
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/** |
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* Operators |
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*/ |
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case 'PhpParser\Node\Expr\New_': |
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return new Expression\Operators\NewOp(); |
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case 'PhpParser\Node\Expr\Instanceof_': |
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return new Expression\Operators\InstanceOfOp(); |
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case 'PhpParser\Node\Expr\BinaryOp\Identical': |
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return new Expression\BinaryOp\Identical(); |
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case 'PhpParser\Node\Expr\BinaryOp\Concat': |
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return new Expression\Operators\Contact(); |
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case 'PhpParser\Node\Expr\BinaryOp\NotIdentical': |
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return new Expression\BinaryOp\NotIdentical(); |
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case 'PhpParser\Node\Expr\BinaryOp\Equal': |
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return new Expression\BinaryOp\Equal(); |
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case 'PhpParser\Node\Expr\BinaryOp\NotEqual': |
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return new Expression\BinaryOp\NotEqual(); |
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/** |
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* @link http://php.net/manual/en/language.operators.increment.php |
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*/ |
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case 'PhpParser\Node\Expr\PostInc': |
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return new Expression\Operators\PostInc(); |
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case 'PhpParser\Node\Expr\PostDec': |
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return new Expression\Operators\PostDec(); |
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/** |
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* Arithmetical |
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*/ |
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case 'PhpParser\Node\Expr\BinaryOp\Div': |
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return new Expression\Operators\Arithmetical\Div(); |
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case 'PhpParser\Node\Expr\BinaryOp\Plus': |
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return new Expression\Operators\Arithmetical\Plus(); |
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case 'PhpParser\Node\Expr\BinaryOp\Minus': |
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return new Expression\Operators\Arithmetical\Minus(); |
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case 'PhpParser\Node\Expr\BinaryOp\Mul': |
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return new Expression\Operators\Arithmetical\Mul(); |
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case 'PhpParser\Node\Expr\BinaryOp\Mod': |
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return new Expression\Operators\Arithmetical\Mod(); |
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/** |
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* Bitwise |
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* @link http://php.net/manual/ru/language.operators.bitwise.php |
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*/ |
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case 'PhpParser\Node\Expr\BinaryOp\BitwiseOr': |
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return new Expression\Operators\Bitwise\BitwiseOr(); |
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case 'PhpParser\Node\Expr\BinaryOp\BitwiseXor': |
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return new Expression\Operators\Bitwise\BitwiseXor(); |
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case 'PhpParser\Node\Expr\BinaryOp\BitwiseAnd': |
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return new Expression\Operators\Bitwise\BitwiseAnd(); |
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case 'PhpParser\Node\Expr\BinaryOp\ShiftRight': |
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return new Expression\Operators\Bitwise\ShiftRight(); |
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case 'PhpParser\Node\Expr\BinaryOp\ShiftLeft': |
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return new Expression\Operators\Bitwise\ShiftLeft(); |
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case 'PhpParser\Node\Expr\BitwiseNot': |
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return new Expression\Operators\Bitwise\BitwiseNot(); |
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/** |
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* Logical |
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*/ |
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case 'PhpParser\Node\Expr\BinaryOp\BooleanOr': |
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return new Expression\Operators\Logical\BooleanOr(); |
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case 'PhpParser\Node\Expr\BinaryOp\BooleanAnd': |
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return new Expression\Operators\Logical\BooleanAnd(); |
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case 'PhpParser\Node\Expr\BooleanNot': |
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return new Expression\Operators\Logical\BooleanNot(); |
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/** |
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* Comparison |
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*/ |
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case 'PhpParser\Node\Expr\BinaryOp\Greater': |
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return new Expression\Operators\Comparison\Greater(); |
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case 'PhpParser\Node\Expr\BinaryOp\GreaterOrEqual': |
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return new Expression\Operators\Comparison\GreaterOrEqual(); |
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case 'PhpParser\Node\Expr\BinaryOp\Smaller': |
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return new Expression\Operators\Comparison\Smaller(); |
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case 'PhpParser\Node\Expr\BinaryOp\SmallerOrEqual': |
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return new Expression\Operators\Comparison\SmallerOrEqual(); |
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/** |
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* Another |
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*/ |
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case 'PhpParser\Node\Expr\UnaryMinus': |
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return new Expression\Operators\UnaryMinus(); |
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case 'PhpParser\Node\Expr\UnaryPlus': |
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return new Expression\Operators\UnaryPlus(); |
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} |
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return false; |
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} |
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/** |
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* @param object|string $expr |
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* @return CompiledExpression |
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*/ |
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public function compile($expr) |
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{ |
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if (is_string($expr)) { |
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return new CompiledExpression(CompiledExpression::STRING, $expr); |
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} |
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if (is_null($expr)) { |
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return new CompiledExpression(CompiledExpression::NULL); |
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} |
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if (!is_object($expr)) { |
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throw new InvalidArgumentException('$expr must be string/object/null'); |
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} |
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$className = get_class($expr); |
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switch ($className) { |
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case 'PhpParser\Node\Expr\PropertyFetch': |
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return $this->passPropertyFetch($expr); |
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case 'PhpParser\Node\Stmt\Property': |
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return $this->passProperty($expr); |
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case 'PhpParser\Node\Expr\ClassConstFetch': |
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return $this->passConstFetch($expr); |
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case 'PhpParser\Node\Expr\Assign': |
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return $this->passSymbol($expr); |
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case 'PhpParser\Node\Expr\AssignRef': |
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return $this->passSymbolByRef($expr); |
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case 'PhpParser\Node\Expr\Variable': |
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return $this->passExprVariable($expr); |
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/** |
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* Cast operators |
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*/ |
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case 'PhpParser\Node\Expr\Cast\Bool_': |
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return $this->passCastBoolean($expr); |
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case 'PhpParser\Node\Expr\Cast\Int_': |
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return $this->passCastInt($expr); |
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case 'PhpParser\Node\Expr\Cast\Double': |
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return $this->passCastFloat($expr); |
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case 'PhpParser\Node\Expr\Cast\String_': |
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return $this->passCastString($expr); |
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case 'PhpParser\Node\Expr\Cast\Unset_': |
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return $this->passCastUnset($expr); |
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/** |
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* Expressions |
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*/ |
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case 'PhpParser\Node\Expr\Array_': |
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return $this->getArray($expr); |
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case 'PhpParser\Node\Expr\ConstFetch': |
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return $this->constFetch($expr); |
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case 'PhpParser\Node\Name': |
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return $this->getNodeName($expr); |
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/** |
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* Simple Scalar(s) |
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*/ |
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case 'PHPSA\Node\Scalar\Nil': |
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return new CompiledExpression(CompiledExpression::NULL); |
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case 'PhpParser\Node\Scalar\LNumber': |
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return new CompiledExpression(CompiledExpression::INTEGER, $expr->value); |
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case 'PhpParser\Node\Scalar\DNumber': |
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return new CompiledExpression(CompiledExpression::DOUBLE, $expr->value); |
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case 'PhpParser\Node\Scalar\String_': |
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return new CompiledExpression(CompiledExpression::STRING, $expr->value); |
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case 'PHPSA\Node\Scalar\Boolean': |
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return new CompiledExpression(CompiledExpression::BOOLEAN, $expr->value); |
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case 'PHPSA\Node\Scalar\Fake': |
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return new CompiledExpression($expr->type, $expr->value); |
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} |
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$expressionCompiler = $this->factory($expr); |
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if (!$expressionCompiler) { |
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$this->context->debug("Expression compiler is not implemented for {$className}"); |
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return new CompiledExpression(CompiledExpression::UNIMPLEMENTED); |
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} |
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$result = $expressionCompiler->pass($expr, $this->context); |
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if (!$result instanceof CompiledExpression) { |
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throw new RuntimeException('Please return CompiledExpression from ' . get_class($expressionCompiler)); |
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} |
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return $result; |
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} |
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/** |
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* @todo Implement |
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* |
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* @param Node\Stmt\Property $st |
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* @return CompiledExpression |
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*/ |
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public function passProperty(Node\Stmt\Property $st) |
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{ |
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return new CompiledExpression(); |
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} |
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/** |
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* @param Node\Expr\Variable $expr |
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* @return CompiledExpression |
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*/ |
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public function declareVariable(Node\Expr\Variable $expr) |
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{ |
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$variable = $this->context->getSymbol($expr->name); |
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if ($variable) { |
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$variable->incGets(); |
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return new CompiledExpression($variable->getType(), $variable->getValue(), $variable); |
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} |
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$symbol = new Variable($expr->name, null, CompiledExpression::UNKNOWN, $this->context->getCurrentBranch()); |
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$this->context->addVariable($symbol); |
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return new CompiledExpression; |
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} |
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/** |
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* @param Node\Name $expr |
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* @return CompiledExpression |
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*/ |
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public function getNodeName(Node\Name $expr) |
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{ |
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if ($expr->parts[0] === 'null') { |
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return new CompiledExpression(CompiledExpression::NULL); |
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} |
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if (in_array($expr, ['parent'])) { |
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/** @var ClassDefinition $scope */ |
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$scope = $this->context->scope; |
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assert($scope instanceof ClassDefinition); |
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if ($scope->getExtendsClass()) { |
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$definition = $scope->getExtendsClassDefinition(); |
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if ($definition) { |
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return new CompiledExpression(CompiledExpression::OBJECT, $definition); |
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} |
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} else { |
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} |
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} |
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if (in_array($expr, ['self', 'static'])) { |
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return CompiledExpression::fromZvalValue($this->context->scope); |
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} |
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$this->context->debug('[Unknown] How to get Node\Name for ' . $expr); |
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return new CompiledExpression(); |
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} |
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/** |
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* (bool) {$expr} |
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* |
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* @param Node\Expr\Cast\Bool_ $expr |
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* @return CompiledExpression |
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*/ |
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protected function passCastBoolean(Node\Expr\Cast\Bool_ $expr) |
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{ |
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$expression = new Expression($this->context); |
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$compiledExpression = $expression->compile($expr->expr); |
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switch ($compiledExpression->getType()) { |
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case CompiledExpression::BOOLEAN: |
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$this->context->notice('stupid-cast', "You are trying to cast 'boolean' to 'boolean'", $expr); |
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return $compiledExpression; |
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case CompiledExpression::DOUBLE: |
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case CompiledExpression::INTEGER: |
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return new CompiledExpression(CompiledExpression::BOOLEAN, (bool) $compiledExpression->getValue()); |
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} |
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return new CompiledExpression(); |
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} |
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/** |
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* (int) {$expr} |
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* |
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* @param Node\Expr\Cast\Int_ $expr |
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* @return CompiledExpression |
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*/ |
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protected function passCastInt(Node\Expr\Cast\Int_ $expr) |
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{ |
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$expression = new Expression($this->context); |
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$compiledExpression = $expression->compile($expr->expr); |
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switch ($compiledExpression->getType()) { |
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case CompiledExpression::INTEGER: |
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$this->context->notice('stupid-cast', "You are trying to cast 'int' to 'int'", $expr); |
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return $compiledExpression; |
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case CompiledExpression::BOOLEAN: |
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case CompiledExpression::DOUBLE: |
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case CompiledExpression::STRING: |
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return new CompiledExpression(CompiledExpression::INTEGER, (int) $compiledExpression->getValue()); |
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} |
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return new CompiledExpression(); |
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} |
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/** |
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* (float) {$expr} |
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* |
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* @param Node\Expr\Cast\Double $expr |
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* @return CompiledExpression |
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*/ |
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protected function passCastFloat(Node\Expr\Cast\Double $expr) |
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{ |
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$expression = new Expression($this->context); |
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$compiledExpression = $expression->compile($expr->expr); |
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switch ($compiledExpression->getType()) { |
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case CompiledExpression::DOUBLE: |
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$this->context->notice('stupid-cast', "You are trying to cast 'float' to 'float'", $expr); |
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return $compiledExpression; |
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case CompiledExpression::BOOLEAN: |
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case CompiledExpression::INTEGER: |
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case CompiledExpression::STRING: |
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return new CompiledExpression(CompiledExpression::DOUBLE, (float) $compiledExpression->getValue()); |
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} |
348
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349
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return new CompiledExpression(); |
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} |
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|
352
|
|
|
/** |
353
|
|
|
* (string) {$expr} |
354
|
|
|
* |
355
|
|
|
* @param Node\Expr\Cast\String_ $expr |
356
|
|
|
* @return CompiledExpression |
357
|
|
|
*/ |
358
|
|
|
protected function passCastString(Node\Expr\Cast\String_ $expr) |
359
|
|
|
{ |
360
|
|
|
$expression = new Expression($this->context); |
361
|
|
|
$compiledExpression = $expression->compile($expr->expr); |
362
|
|
|
|
363
|
|
|
switch ($compiledExpression->getType()) { |
364
|
|
|
case CompiledExpression::STRING: |
365
|
|
|
$this->context->notice('stupid-cast', "You are trying to cast 'string' to 'string'", $expr); |
366
|
|
|
return $compiledExpression; |
367
|
|
|
case CompiledExpression::BOOLEAN: |
368
|
|
|
case CompiledExpression::INTEGER: |
369
|
|
|
case CompiledExpression::DOUBLE: |
370
|
|
|
return new CompiledExpression(CompiledExpression::DOUBLE, (string) $compiledExpression->getValue()); |
371
|
|
|
} |
372
|
|
|
|
373
|
|
|
return new CompiledExpression(); |
374
|
|
|
} |
375
|
|
|
|
376
|
|
|
/** |
377
|
|
|
* (unset) {$expr} |
378
|
|
|
* |
379
|
|
|
* @param Node\Expr\Cast\Unset_ $expr |
380
|
|
|
* @return CompiledExpression |
381
|
|
|
*/ |
382
|
|
|
protected function passCastUnset(Node\Expr\Cast\Unset_ $expr) |
383
|
|
|
{ |
384
|
|
|
$expression = new Expression($this->context); |
385
|
|
|
$compiledExpression = $expression->compile($expr->expr); |
386
|
|
|
|
387
|
|
|
switch ($compiledExpression->getType()) { |
388
|
|
|
case CompiledExpression::NULL: |
389
|
|
|
$this->context->notice('stupid-cast', "You are trying to cast 'unset' to 'null'", $expr); |
390
|
|
|
return $compiledExpression; |
391
|
|
|
} |
392
|
|
|
|
393
|
|
|
return new CompiledExpression(CompiledExpression::NULL, null); |
394
|
|
|
} |
395
|
|
|
|
396
|
|
|
/** |
397
|
|
|
* @param Node\Expr\PropertyFetch $expr |
398
|
|
|
* @return CompiledExpression |
399
|
|
|
*/ |
400
|
|
|
protected function passPropertyFetch(Node\Expr\PropertyFetch $expr) |
401
|
|
|
{ |
402
|
|
|
$propertNameCE = $this->compile($expr->name); |
403
|
|
|
|
404
|
|
|
$scopeExpression = $this->compile($expr->var); |
405
|
|
|
if ($scopeExpression->isObject()) { |
406
|
|
|
$scopeExpressionValue = $scopeExpression->getValue(); |
407
|
|
|
if ($scopeExpressionValue instanceof ClassDefinition) { |
408
|
|
|
$propertyName = $propertNameCE->isString() ? $propertNameCE->getValue() : false; |
409
|
|
|
if ($propertyName) { |
410
|
|
|
if ($scopeExpressionValue->hasProperty($propertyName, true)) { |
411
|
|
|
$property = $scopeExpressionValue->getProperty($propertyName, true); |
412
|
|
|
return $this->compile($property); |
413
|
|
|
} else { |
414
|
|
|
$this->context->notice( |
415
|
|
|
'undefined-property', |
416
|
|
|
sprintf( |
417
|
|
|
'Property %s does not exist in %s scope', |
418
|
|
|
$propertyName, |
419
|
|
|
$scopeExpressionValue->getName() |
420
|
|
|
), |
421
|
|
|
$expr |
422
|
|
|
); |
423
|
|
|
} |
424
|
|
|
} |
425
|
|
|
} |
426
|
|
|
} elseif (!$scopeExpression->canBeObject()) { |
427
|
|
|
return new CompiledExpression(CompiledExpression::UNKNOWN); |
428
|
|
|
} |
429
|
|
|
|
430
|
|
|
$this->context->notice( |
431
|
|
|
'property-fetch-on-non-object', |
432
|
|
|
"It's not possible to fetch property on not object", |
433
|
|
|
$expr, |
434
|
|
|
Check::CHECK_BETA |
435
|
|
|
); |
436
|
|
|
|
437
|
|
|
return new CompiledExpression(CompiledExpression::UNKNOWN); |
438
|
|
|
} |
439
|
|
|
|
440
|
|
|
/** |
441
|
|
|
* @param Node\Expr\ClassConstFetch $expr |
442
|
|
|
* @return CompiledExpression |
443
|
|
|
*/ |
444
|
|
|
protected function passConstFetch(Node\Expr\ClassConstFetch $expr) |
445
|
|
|
{ |
446
|
|
|
$leftCE = $this->compile($expr->class); |
447
|
|
|
if ($leftCE->isObject()) { |
448
|
|
|
$leftCEValue = $leftCE->getValue(); |
449
|
|
|
if ($leftCEValue instanceof ClassDefinition) { |
450
|
|
|
if (!$leftCEValue->hasConst($expr->name)) { |
451
|
|
|
$this->context->notice( |
452
|
|
|
'undefined-const', |
453
|
|
|
sprintf('Constant %s does not exist in %s scope', $expr->name, $expr->class), |
454
|
|
|
$expr |
455
|
|
|
); |
456
|
|
|
return new CompiledExpression(CompiledExpression::UNKNOWN); |
457
|
|
|
} |
458
|
|
|
|
459
|
|
|
return new CompiledExpression(); |
460
|
|
|
} |
461
|
|
|
} |
462
|
|
|
|
463
|
|
|
$this->context->debug('Unknown const fetch'); |
464
|
|
|
return new CompiledExpression(); |
465
|
|
|
} |
466
|
|
|
|
467
|
|
|
/** |
468
|
|
|
* @param Node\Expr\Assign $expr |
469
|
|
|
* @return CompiledExpression |
470
|
|
|
*/ |
471
|
|
|
protected function passSymbol(Node\Expr\Assign $expr) |
472
|
|
|
{ |
473
|
|
|
$expression = new Expression($this->context); |
474
|
|
|
$compiledExpression = $expression->compile($expr->expr); |
475
|
|
|
|
476
|
|
|
if ($expr->var instanceof Node\Expr\List_) { |
477
|
|
|
$isCorrectType = false; |
478
|
|
|
|
479
|
|
|
switch ($compiledExpression->getType()) { |
480
|
|
|
case CompiledExpression::ARR: |
481
|
|
|
$isCorrectType = true; |
482
|
|
|
break; |
483
|
|
|
} |
484
|
|
|
|
485
|
|
|
if ($expr->var->vars) { |
|
|
|
|
486
|
|
|
foreach ($expr->var->vars as $key => $var) { |
487
|
|
|
if ($var instanceof Node\Expr\Variable) { |
488
|
|
|
$name = $expr->var->name; |
|
|
|
|
489
|
|
|
|
490
|
|
|
$symbol = $this->context->getSymbol($name); |
491
|
|
|
if (!$symbol) { |
492
|
|
|
$symbol = new Variable( |
493
|
|
|
$name, |
|
|
|
|
494
|
|
|
null, |
495
|
|
|
CompiledExpression::UNKNOWN, |
496
|
|
|
$this->context->getCurrentBranch() |
497
|
|
|
); |
498
|
|
|
$this->context->addVariable($symbol); |
499
|
|
|
} |
500
|
|
|
|
501
|
|
|
if (!$isCorrectType) { |
502
|
|
|
$symbol->modify(CompiledExpression::NULL, null); |
503
|
|
|
} |
504
|
|
|
|
505
|
|
|
$symbol->incSets(); |
506
|
|
|
} |
507
|
|
|
} |
508
|
|
|
} |
509
|
|
|
|
510
|
|
|
return new CompiledExpression(); |
511
|
|
|
} |
512
|
|
|
|
513
|
|
|
if ($expr->var instanceof Node\Expr\Variable) { |
514
|
|
|
$name = $expr->var->name; |
515
|
|
|
|
516
|
|
|
$symbol = $this->context->getSymbol($name); |
517
|
|
|
if ($symbol) { |
518
|
|
|
$symbol->modify($compiledExpression->getType(), $compiledExpression->getValue()); |
519
|
|
|
} else { |
520
|
|
|
$symbol = new Variable( |
521
|
|
|
$name, |
|
|
|
|
522
|
|
|
$compiledExpression->getValue(), |
523
|
|
|
$compiledExpression->getType(), |
524
|
|
|
$this->context->getCurrentBranch() |
525
|
|
|
); |
526
|
|
|
$this->context->addVariable($symbol); |
527
|
|
|
} |
528
|
|
|
|
529
|
|
|
$symbol->incSets(); |
530
|
|
|
return $compiledExpression; |
531
|
|
|
} |
532
|
|
|
|
533
|
|
|
if ($expr->var instanceof Node\Expr\PropertyFetch) { |
534
|
|
|
$compiledExpression = $this->compile($expr->var->var); |
535
|
|
|
if ($compiledExpression->getType() == CompiledExpression::OBJECT) { |
536
|
|
|
$objectDefinition = $compiledExpression->getValue(); |
537
|
|
|
if ($objectDefinition instanceof ClassDefinition) { |
538
|
|
|
if (is_string($expr->var->name)) { |
539
|
|
|
if ($objectDefinition->hasProperty($expr->var->name)) { |
540
|
|
|
return $this->compile($objectDefinition->getProperty($expr->var->name)); |
541
|
|
|
} |
542
|
|
|
} |
543
|
|
|
} |
544
|
|
|
} |
545
|
|
|
} |
546
|
|
|
|
547
|
|
|
$this->context->debug('Unknown how to pass symbol'); |
548
|
|
|
return new CompiledExpression(); |
549
|
|
|
} |
550
|
|
|
|
551
|
|
|
/** |
552
|
|
|
* @param Node\Expr\AssignRef $expr |
553
|
|
|
* @return CompiledExpression |
554
|
|
|
*/ |
555
|
|
|
protected function passSymbolByRef(Node\Expr\AssignRef $expr) |
556
|
|
|
{ |
557
|
|
|
if ($expr->var instanceof \PhpParser\Node\Expr\List_) { |
558
|
|
|
return new CompiledExpression(); |
559
|
|
|
} |
560
|
|
|
|
561
|
|
|
if ($expr->var instanceof Node\Expr\Variable) { |
562
|
|
|
$name = $expr->var->name; |
563
|
|
|
|
564
|
|
|
$expression = new Expression($this->context); |
565
|
|
|
$compiledExpression = $expression->compile($expr->expr); |
566
|
|
|
|
567
|
|
|
$symbol = $this->context->getSymbol($name); |
568
|
|
|
if ($symbol) { |
569
|
|
|
$symbol->modify($compiledExpression->getType(), $compiledExpression->getValue()); |
570
|
|
|
|
571
|
|
|
if ($expr->expr instanceof Node\Expr\Variable) { |
572
|
|
|
$rightVarName = $expr->expr->name; |
573
|
|
|
|
574
|
|
|
$rightSymbol = $this->context->getSymbol($rightVarName); |
575
|
|
|
if ($rightSymbol) { |
576
|
|
|
$rightSymbol->incUse(); |
577
|
|
|
$symbol->setReferencedTo($rightSymbol); |
578
|
|
|
} else { |
579
|
|
|
$this->context->debug('Cannot fetch variable by name: ' . $rightVarName); |
580
|
|
|
} |
581
|
|
|
} |
582
|
|
|
|
583
|
|
|
$this->context->debug('Unknown how to pass referenced to symbol: ' . get_class($expr->expr)); |
584
|
|
|
} else { |
585
|
|
|
$symbol = new Variable( |
586
|
|
|
$name, |
|
|
|
|
587
|
|
|
$compiledExpression->getValue(), |
588
|
|
|
$compiledExpression->getType(), |
589
|
|
|
$this->context->getCurrentBranch() |
590
|
|
|
); |
591
|
|
|
$this->context->addVariable($symbol); |
592
|
|
|
} |
593
|
|
|
|
594
|
|
|
$symbol->incSets(); |
595
|
|
|
return $compiledExpression; |
596
|
|
|
} |
597
|
|
|
|
598
|
|
|
$this->context->debug('Unknown how to pass symbol by ref'); |
599
|
|
|
return new CompiledExpression(); |
600
|
|
|
} |
601
|
|
|
|
602
|
|
|
/** |
603
|
|
|
* @param Node\Expr\Variable $expr |
604
|
|
|
* @return CompiledExpression |
605
|
|
|
*/ |
606
|
|
|
protected function passExprVariable(Node\Expr\Variable $expr) |
607
|
|
|
{ |
608
|
|
|
$variable = $this->context->getSymbol($expr->name); |
609
|
|
|
if ($variable) { |
610
|
|
|
$variable->incGets(); |
611
|
|
|
return new CompiledExpression($variable->getType(), $variable->getValue(), $variable); |
612
|
|
|
} |
613
|
|
|
|
614
|
|
|
$this->context->notice( |
615
|
|
|
'undefined-variable', |
616
|
|
|
sprintf('You trying to use undefined variable $%s', $expr->name), |
617
|
|
|
$expr |
618
|
|
|
); |
619
|
|
|
|
620
|
|
|
return new CompiledExpression(); |
621
|
|
|
} |
622
|
|
|
|
623
|
|
|
/** |
624
|
|
|
* Compile Array_ expression to CompiledExpression |
625
|
|
|
* |
626
|
|
|
* @param Node\Expr\Array_ $expr |
627
|
|
|
* @return CompiledExpression |
628
|
|
|
*/ |
629
|
11 |
|
protected function getArray(Node\Expr\Array_ $expr) |
630
|
|
|
{ |
631
|
11 |
|
if ($expr->items === array()) { |
632
|
8 |
|
return new CompiledExpression(CompiledExpression::ARR, array()); |
633
|
|
|
} |
634
|
|
|
|
635
|
3 |
|
$resultArray = array(); |
636
|
|
|
|
637
|
3 |
|
foreach ($expr->items as $item) { |
638
|
3 |
|
$compiledValueResult = $this->compile($item->value); |
639
|
3 |
|
if ($item->key) { |
640
|
1 |
|
$compiledKeyResult = $this->compile($item->key); |
641
|
1 |
|
switch ($compiledKeyResult->getType()) { |
642
|
1 |
|
case CompiledExpression::INTEGER: |
643
|
1 |
|
case CompiledExpression::DOUBLE: |
644
|
1 |
|
case CompiledExpression::BOOLEAN: |
645
|
1 |
|
case CompiledExpression::NULL: |
646
|
1 |
|
case CompiledExpression::STRING: |
647
|
1 |
|
$resultArray[$compiledKeyResult->getValue()] = $compiledValueResult->getValue(); |
648
|
1 |
|
break; |
649
|
|
|
default: |
650
|
|
|
$this->context->debug("Type {$compiledKeyResult->getType()} is not supported for key value"); |
651
|
|
|
return new CompiledExpression(CompiledExpression::ARR); |
652
|
|
|
break; |
|
|
|
|
653
|
1 |
|
} |
654
|
1 |
|
} else { |
655
|
2 |
|
$resultArray[] = $compiledValueResult->getValue(); |
656
|
|
|
} |
657
|
3 |
|
} |
658
|
|
|
|
659
|
3 |
|
return new CompiledExpression(CompiledExpression::ARR, $resultArray); |
660
|
|
|
} |
661
|
|
|
|
662
|
|
|
/** |
663
|
|
|
* Convert const fetch expr to CompiledExpression |
664
|
|
|
* |
665
|
|
|
* @param Node\Expr\ConstFetch $expr |
666
|
|
|
* @return CompiledExpression |
667
|
|
|
*/ |
668
|
|
|
protected function constFetch(Node\Expr\ConstFetch $expr) |
669
|
|
|
{ |
670
|
|
|
if ($expr->name instanceof Node\Name) { |
671
|
|
|
if ($expr->name->parts[0] === 'true') { |
672
|
|
|
return new CompiledExpression(CompiledExpression::BOOLEAN, true); |
673
|
|
|
} |
674
|
|
|
|
675
|
|
|
if ($expr->name->parts[0] === 'false') { |
676
|
|
|
return new CompiledExpression(CompiledExpression::BOOLEAN, false); |
677
|
|
|
} |
678
|
|
|
} |
679
|
|
|
|
680
|
|
|
/** |
681
|
|
|
* @todo Implement check |
682
|
|
|
*/ |
683
|
|
|
|
684
|
|
|
$expression = new Expression($this->context); |
685
|
|
|
$compiledExpr = $expression->compile($expr->name); |
686
|
|
|
|
687
|
|
|
return $compiledExpr; |
688
|
|
|
} |
689
|
|
|
} |
690
|
|
|
|
The class complexity is the sum of the complexity of all methods. A very high value is usually an indication that your class does not follow the single reponsibility principle and does more than one job.
Some resources for further reading:
You can also find more detailed suggestions for refactoring in the “Code” section of your repository.