private function redeclareSimpleVar(LinkedFlowScope $scope, \PHPParser_Node $nameNode, PhpType $varType = null)
{
if (!self::hasQualifiedName($nameNode)) {
return;
}
if (null === $varType) {
$varType = $this->typeRegistry->getNativeType('unknown');
}
$varName = self::getQualifiedName($nameNode);
$scope->inferSlotType($varName, $varType);
}
/**
* Declares a refined type in {@code scope} for the name represented by
* {@code node}. It must be possible to refine the type of the given node in
* the given scope, as determined by {@link #getTypeIfRefinable}.
*/
protected function declareNameInScope(LinkedFlowScope $scope, \PHPParser_Node $node, PhpType $type)
{
switch (true) {
case $node instanceof \PHPParser_Node_Expr_Variable:
if (is_string($node->name)) {
$scope->inferSlotType($node->name, $type);
}
break;
case $node instanceof \PHPParser_Node_Expr_StaticPropertyFetch:
case $node instanceof \PHPParser_Node_Expr_PropertyFetch:
if (null !== ($qualifiedName = TypeInference::getQualifiedName($node))) {
$origType = $node->getAttribute('type') ?: $this->typeRegistry->getNativeType('unknown');
$scope->inferQualifiedSlot($node, $qualifiedName, $origType, $type);
}
break;
// Something like: if (is_array($functions = getFunctionNames())) { }
// Something like: if (is_array($functions = getFunctionNames())) { }
case $node instanceof \PHPParser_Node_Expr_Assign:
case $node instanceof \PHPParser_Node_Expr_AssignRef:
$this->declareNameInScope($scope, $node->var, $type);
break;
case $node instanceof \PHPParser_Node_Expr_ArrayDimFetch:
$dim = \Scrutinizer\PhpAnalyzer\PhpParser\NodeUtil::getValue($node->dim);
if ($dim->isDefined() && null !== ($slotType = $node->var->getAttribute('type')) && $slotType->isArrayType()) {
$newSlotType = $slotType->inferItemType($dim->get(), $type);
$this->declareNameInScope($scope, $node->var, $newSlotType);
}
break;
}
}
private function createVar(LinkedFlowScope $scope, $name, $type)
{
$type = $this->registry->resolveType($type);
$this->functionScope->declareVar($name)->setNameNode($n = new \PHPParser_Node_Expr_Variable($name));
$scope->inferSlotType($name, $type);
$n->setAttribute('type', $type);
return $n;
}
