private function fixSpacing($index, Tokens $tokens)
{
if ($tokens[$index]->isGivenKind(CT::T_ARRAY_SQUARE_BRACE_OPEN)) {
$startIndex = $index;
$endIndex = $tokens->findBlockEnd(Tokens::BLOCK_TYPE_ARRAY_SQUARE_BRACE, $startIndex);
} else {
$startIndex = $tokens->getNextTokenOfKind($index, array('('));
$endIndex = $tokens->findBlockEnd(Tokens::BLOCK_TYPE_PARENTHESIS_BRACE, $startIndex);
}
for ($i = $endIndex - 1; $i > $startIndex; --$i) {
$i = $this->skipNonArrayElements($i, $tokens);
if ($tokens[$i]->equals(',') && !$tokens[$i + 1]->isWhitespace()) {
$tokens->insertAt($i + 1, new Token(array(T_WHITESPACE, ' ')));
}
}
}