Magic constants (__DIR__, __FILE__...) will be resolved to their appropriate value.
Scoped class keywords/constants (static::, self::, parent::) will be resolved
to their fully qualified name.
| public getStructure ( Pinq\Parsing\IFunctionReflection $reflection ) : Pinq\Parsing\IFunctionStructure | ||
| $reflection | Pinq\Parsing\IFunctionReflection | |
| Результат | Pinq\Parsing\IFunctionStructure | |
protected function parseQueryExpression(callable $queryFunction, O\IEvaluationContext &$evaluationContext = null)
{
$reflection = $this->functionInterpreter->getReflection($queryFunction);
$evaluationContext = $reflection->asEvaluationContext();
$function = $this->functionInterpreter->getStructure($reflection);
$expressions = $function->getBodyExpressions();
$this->assertCount(1, $expressions);
//Resolve the parameter variable with the queryable value and $this
$parameterName = $reflection->getSignature()->getParameterExpressions()[0]->getName();
$expression = $expressions[0];
foreach ([$parameterName => $this->queryable, 'this' => $this] as $variable => $value) {
$variableReplacer = new O\DynamicExpressionWalker([O\VariableExpression::getType() => function (O\VariableExpression $expression) use($variable, &$value) {
if ($expression->getName() instanceof O\ValueExpression && $expression->getName()->getValue() === $variable) {
return O\Expression::value($value);
} else {
return $expression;
}
}, O\ClosureExpression::getType() => function ($closure) {
return $closure;
}]);
$expression = $variableReplacer->walk($expression);
}
if ($expression instanceof O\ReturnExpression) {
return $expression->getValue();
} else {
return $expression;
}
}
/**
* @param callable $function
* @param array $variableTypeMap
* @param mixed $expression
*
* @return ITypeAnalysis
*/
protected function getAnalysis(callable $function, array $variableTypeMap = [], &$expression = null)
{
$reflection = $this->functionInterpreter->getReflection($function);
foreach ($reflection->getSignature()->getParameterExpressions() as $parameterExpression) {
$variableTypeMap[$parameterExpression->getName()] = $this->typeSystem->getTypeFromTypeHint($parameterExpression->getTypeHint());
}
$analysisContext = $this->expressionAnalyser->createAnalysisContext($reflection->asEvaluationContext());
foreach ($variableTypeMap as $variable => $type) {
$analysisContext->setExpressionType(O\Expression::variable(O\Expression::value($variable)), $type);
}
$bodyExpressions = $this->functionInterpreter->getStructure($reflection)->getBodyExpressions();
foreach ($bodyExpressions as $expression) {
if ($expression instanceof O\ReturnExpression) {
return $this->expressionAnalyser->analyse($analysisContext, $expression->getValue());
} elseif (count($bodyExpressions) === 1) {
return $this->expressionAnalyser->analyse($analysisContext, $expression);
} else {
$this->expressionAnalyser->analyse($analysisContext, $expression);
}
}
}