/**
* If $constant is the start of the constant defining $key, updat its value to $value
*
* @param Collection $tokens
* @param Token $constant
* @param string $key
* @param mixed $value
*/
private function handleConstant(Collection $tokens, Token $constant, $key, $value)
{
$lineEnd = false;
$found = false;
$index = $constant->getIndex();
$tokens->rewind();
while ($lineEnd === false && ($constantToken = $tokens->getNext($index))) {
if ($constantToken->getValue() === ';') {
$lineEnd = true;
}
if ($constantToken->getType() === T_STRING && $constantToken->getValue() === $key) {
$found = true;
} elseif ($found === true) {
$this->attemptUpdate($constantToken, $value);
}
$index++;
}
}
/**
* @param Token $tokenStart
* @param Token $tokenEnd
* @return Collection
*/
public function extractByTokens(Token $tokenStart, Token $tokenEnd)
{
$collection = new Collection();
$startIndex = $tokenStart->getIndex();
$endIndex = $tokenEnd->getIndex();
foreach ($this->getItems() as $token) {
if ($token->getIndex() >= $startIndex and $token->getIndex() <= $endIndex) {
$collection->append($token);
}
}
return $collection;
}
/**
* Move to specific position
*
* @param Token $token
* @return Token|null
*/
public function moveToToken(Token $token)
{
if (!$token->isValid()) {
$this->setValid(false);
return new Token();
}
$tokenIndex = $token->getIndex();
foreach ($this->collection as $index => $collectionToken) {
if ($collectionToken->getIndex() == $tokenIndex) {
$this->setPosition($index);
return $collectionToken;
}
}
$this->setValid(false);
return new Token();
}