Blockly.PHP[''] = function()

in generators/php/math.js [218:313]
92 lines of code
17 McCabe index (conditional complexity)

Blockly.PHP['math_on_list'] = function(block) {
  // Math functions for lists.
  var func = block.getFieldValue('OP');
  var list, code;
  switch (func) {
    case 'SUM':
      list = Blockly.PHP.valueToCode(block, 'LIST',
          Blockly.PHP.ORDER_FUNCTION_CALL) || 'array()';
      code = 'array_sum(' + list + ')';
      break;
    case 'MIN':
      list = Blockly.PHP.valueToCode(block, 'LIST',
          Blockly.PHP.ORDER_FUNCTION_CALL) || 'array()';
      code = 'min(' + list + ')';
      break;
    case 'MAX':
      list = Blockly.PHP.valueToCode(block, 'LIST',
          Blockly.PHP.ORDER_FUNCTION_CALL) || 'array()';
      code = 'max(' + list + ')';
      break;
    case 'AVERAGE':
      var functionName = Blockly.PHP.provideFunction_(
          'math_mean',
          ['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
              '($myList) {',
           '  return array_sum($myList) / count($myList);',
           '}']);
      list = Blockly.PHP.valueToCode(block, 'LIST',
          Blockly.PHP.ORDER_NONE) || 'array()';
      code = functionName + '(' + list + ')';
      break;
    case 'MEDIAN':
      var functionName = Blockly.PHP.provideFunction_(
          'math_median',
          ['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
              '($arr) {',
           '  sort($arr,SORT_NUMERIC);',
           '  return (count($arr) % 2) ? $arr[floor(count($arr)/2)] : ',
           '      ($arr[floor(count($arr)/2)] + $arr[floor(count($arr)/2)' +
              ' - 1]) / 2;',
           '}']);
      list = Blockly.PHP.valueToCode(block, 'LIST',
          Blockly.PHP.ORDER_NONE) || '[]';
      code = functionName + '(' + list + ')';
      break;
    case 'MODE':
      // As a list of numbers can contain more than one mode,
      // the returned result is provided as an array.
      // Mode of [3, 'x', 'x', 1, 1, 2, '3'] -> ['x', 1].
      var functionName = Blockly.PHP.provideFunction_(
          'math_modes',
          ['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
              '($values) {',
           '  if (empty($values)) return array();',
           '  $counts = array_count_values($values);',
           '  arsort($counts); // Sort counts in descending order',
           '  $modes = array_keys($counts, current($counts), true);',
           '  return $modes;',
           '}']);
      list = Blockly.PHP.valueToCode(block, 'LIST',
          Blockly.PHP.ORDER_NONE) || '[]';
      code = functionName + '(' + list + ')';
      break;
    case 'STD_DEV':
      var functionName = Blockly.PHP.provideFunction_(
          'math_standard_deviation',
          ['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
              '($numbers) {',
           '  $n = count($numbers);',
           '  if (!$n) return null;',
           '  $mean = array_sum($numbers) / count($numbers);',
           '  foreach($numbers as $key => $num) $devs[$key] = ' +
              'pow($num - $mean, 2);',
           '  return sqrt(array_sum($devs) / (count($devs) - 1));',
           '}']);
      list = Blockly.PHP.valueToCode(block, 'LIST',
              Blockly.PHP.ORDER_NONE) || '[]';
      code = functionName + '(' + list + ')';
      break;
    case 'RANDOM':
      var functionName = Blockly.PHP.provideFunction_(
          'math_random_list',
          ['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
              '($list) {',
           '  $x = rand(0, count($list)-1);',
           '  return $list[$x];',
           '}']);
      list = Blockly.PHP.valueToCode(block, 'LIST',
          Blockly.PHP.ORDER_NONE) || '[]';
      code = functionName + '(' + list + ')';
      break;
    default:
      throw Error('Unknown operator: ' + func);
  }
  return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
};