/**
* Will return a list of parameter definition objects extracted from a given token array
*
* @param array $tokens The token array
*
* @return \TechDivision\PBC\Entities\Lists\ParameterDefinitionList
*
* TODO Does this have to be this long?
*/
protected function getParameterDefinitionList(array $tokens)
{
// Check the tokens
$parameterString = '';
$parameterDefinitionList = new ParameterDefinitionList();
for ($i = 0; $i < count($tokens); $i++) {
// If we got the function definition, no scan everything from the first ( to the next )
if ($tokens[$i][0] === T_FUNCTION) {
$bracketPassed = null;
for ($j = $i; $j < count($tokens); $j++) {
// If we got the function definition, no scan everything from the first ( to the closing )
if ($tokens[$j] === '(') {
if ($bracketPassed === null) {
$bracketPassed = 0;
// We do not want to get this token as well.
continue;
} else {
$bracketPassed++;
}
}
// We got A closing bracket, decrease the counter
if ($tokens[$j] === ')') {
$bracketPassed--;
}
if ($bracketPassed >= 0 && $bracketPassed !== null) {
// Collect what we get
if (is_array($tokens[$j])) {
$parameterString .= $tokens[$j][1];
} else {
$parameterString .= $tokens[$j];
}
} elseif ($bracketPassed !== null) {
// If we got the closing bracket we can leave both loops
break 2;
}
}
}
}
// Now lets analyse what we got
$parameterStrings = explode(',', $parameterString);
foreach ($parameterStrings as $key => $param) {
if ($this->getBracketCount($param, '(') > 0) {
$param = $param . ', ' . $parameterStrings[$key + 1];
unset($parameterStrings[$key + 1]);
}
$param = trim($param);
$paramPieces = explode('$', $param);
// Get a new ParameterDefinition
$parameterDefinition = new ParameterDefinition();
// we either get one or two pieces
if (count($paramPieces) === 1) {
continue;
} elseif (count($paramPieces) === 2) {
$parameterDefinition->type = trim($paramPieces[0]);
// We might have an overload going on
$nameArray = explode('=', $paramPieces[1]);
$parameterDefinition->name = '$' . trim($nameArray[0]);
// check if we got a default value for overloading
if (isset($nameArray[1])) {
$parameterDefinition->defaultValue = $nameArray[1];
}
}
// Add the definition to the list
$parameterDefinitionList->add($parameterDefinition);
}
return $parameterDefinitionList;
}
