private function inferenceTypeOfCalledObject(TES5ObjectCall $objectCall, TES5MultipleScriptsScope $multipleScriptsScope)
{
$inferencableType = $objectCall->getAccessedObject()->getType()->getNativeType();
/**
* Check if we have something to inference inside the code, not some static class or method call return
*/
if ($objectCall->getAccessedObject()->getReferencesTo() !== null) {
//this is not "exactly" nice solution, but its enough. For now.
$inferenceType = TES5InheritanceGraphAnalyzer::findTypeByMethod($objectCall);
if ($inferencableType === null) {
throw new ConversionException("Cannot inference a null type");
}
if ($inferencableType == $inferenceType) {
return;
//We already have the good type.
}
if ($this->inferenceType($objectCall->getAccessedObject()->getReferencesTo(), $inferenceType, $multipleScriptsScope)) {
return;
}
}
}
/**
* @param TES5ObjectCall $objectCall
* @return mixed|TES5Type
* @throws \Ormin\OBSLexicalParser\TES5\Exception\ConversionException
*
*/
public static function findTypeByMethod(TES5ObjectCall $objectCall)
{
$methodName = $objectCall->getFunctionName();
$possibleMatches = [];
foreach (self::$callReturns as $type => $methods) {
foreach ($methods as $method => $functionData) {
if (strtolower($method) == strtolower($methodName)) {
$possibleMatches[] = TES5TypeFactory::memberByValue($type);
}
}
}
$calledOn = $objectCall->getAccessedObject()->getReferencesTo();
$extendingMatches = [];
$actualType = $calledOn->getPropertyType()->getNativeType();
/**
* @var TES5Type[] $possibleMatches
*/
foreach ($possibleMatches as $possibleMatch) {
if ($possibleMatch == $actualType) {
return $possibleMatch;
//if the possible match matches the actual basic type, it means that it surely IS one of those.
}
//Ok, so are those matches somehow connected at all?
if (TES5InheritanceGraphAnalyzer::isExtending($possibleMatch, $actualType) || TES5InheritanceGraphAnalyzer::isExtending($actualType, $possibleMatch)) {
$extendingMatches[] = $possibleMatch;
}
}
switch (count($extendingMatches)) {
case 0:
$concatTypes = [];
foreach ($possibleMatches as $possibleMatch) {
$concatTypes[] = $possibleMatch->value();
}
throw new ConversionException("Cannot find any possible type for method " . $methodName . ", trying to extend " . $actualType->value() . " with following types: " . implode(', ', $concatTypes));
case 1:
return current($extendingMatches);
default:
//We analyze the property name and check inside the ESM analyzer.
$formType = ESMAnalyzer::instance()->getFormTypeByEDID($calledOn->getReferenceEdid());
if (!in_array($formType, $extendingMatches)) {
throw new ConversionException("ESM <-> Inheritance Graph conflict, ESM returned " . $formType->value() . ", which is not present in possible matches from inheritance graph");
}
return $formType;
}
}