private function ParseAssignmentExpressions(Functional\IAST $AST)
{
$AST->SetPropertyMode(Functional\IAST::PropertiesAreGettersOrSetters);
$Expressions = $AST->ParseNodes();
foreach ($Expressions as $Key => $Expression) {
if (!$Expression instanceof AssignmentExpression) {
unset($Expressions[$Key]);
}
}
return $Expressions;
}
private function ParseReturnExpression(Functional\IAST $AST)
{
if (!$AST->HasEntityMap() || $AST->GetEntityMap()->GetEntityType() !== $this->GetEntityType()) {
throw new \Storm\Core\Object\TypeMismatchException('The supplied AST must be of entity type %s: %s given', $this->GetEntityType(), $AST->HasEntityMap() ? $AST->GetEntityMap()->GetEntityType() : 'null');
}
if (!$AST->HasReturnNode()) {
throw new FluentException('The supplied closure must contain a valid return statement');
}
$ReturnNodes = $AST->GetReturnNodes();
if (count($ReturnNodes) > 1) {
throw new FluentException('The supplied closure must contain a single return statement');
}
$AST->SetPropertyMode(Functional\IAST::PropertiesAreGetters);
return $AST->ParseNode($ReturnNodes[0]);
}