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<?php |
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namespace Pinq\Queries\Builders\Interpretations; |
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use Pinq\Parsing\IFunctionInterpreter; |
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use Pinq\PinqException; |
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use Pinq\Queries; |
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use Pinq\Queries\Builders\Functions\CallableFunction; |
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use Pinq\Queries\Builders\Functions\ClosureExpressionFunction; |
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use Pinq\Queries\Builders\Functions\IFunction; |
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/** |
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* Base class for query expression parsing. |
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* |
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* @author Elliot Levin <[email protected]> |
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*/ |
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class BaseParser extends BaseInterpretation implements IQueryParser |
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{ |
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public function __construct(IFunctionInterpreter $functionInterpreter) |
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{ |
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parent::__construct($functionInterpreter); |
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} |
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final protected function buildFunction(IFunction $function, callable $factory) |
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{ |
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if ($function instanceof CallableFunction) { |
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$reflection = $this->functionInterpreter->getReflection($function->getCallable()); |
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$scopeType = $reflection->getScope()->getScopeType(); |
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$namespace = $reflection->getInnerReflection()->getNamespaceName() ?: null; |
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$parameterExpressions = $reflection->getSignature()->getParameterExpressions(); |
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$scopedVariableNames = $reflection->getSignature()->isStatic() ? [] : ['this']; |
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$scopedVariableNames = array_merge( |
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$scopedVariableNames, |
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$reflection->getSignature()->getScopedVariableNames() ?: [] |
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); |
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$bodyExpressions = $reflection->getInnerReflection()->isUserDefined() |
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? $this->functionInterpreter->getStructure($reflection)->getBodyExpressions() : null; |
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} elseif ($function instanceof ClosureExpressionFunction) { |
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if ($function->hasEvaluationContext()) { |
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$scopeType = $function->getEvaluationContext()->getScopeType(); |
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$namespace = $function->getEvaluationContext()->getNamespace(); |
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} else { |
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$scopeType = null; |
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$namespace = null; |
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} |
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$expression = $function->getExpression(); |
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$parameterExpressions = $expression->getParameters(); |
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$bodyExpressions = $expression->getBodyExpressions(); |
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$scopedVariableNames = array_merge(['this'], $expression->getUsedVariableNames()); |
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} else { |
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throw new PinqException( |
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'Cannot build function: unsupported function type, %s', |
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get_class($function)); |
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} |
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return $factory( |
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$this->getFunctionCallableParameter($function), |
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$scopeType, |
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$namespace, |
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$this->getFunctionScopeParameterMap($function, $scopedVariableNames), |
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$parameterExpressions, |
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$bodyExpressions |
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); |
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} |
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final protected function getFunctionScopeParameterMap(IFunction $function, array $scopedVariableNames) |
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{ |
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$parameterScopedVariableMap = []; |
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foreach (array_unique($scopedVariableNames) as $scopedVariable) { |
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$parameterScopedVariableMap[$this->getFunctionScopedVariableParameter( |
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$function, |
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$scopedVariable |
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)] = $scopedVariable; |
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} |
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return $parameterScopedVariableMap; |
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} |
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} |
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TimeToogo /
Pinq
