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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace frictionlessdata\tableschema\Fields;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Carbon\Carbon;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Class TimeField  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * casts to array [hour, minute, second].  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class TimeField extends BaseField  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function validateCastValue($val)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        switch ($this->format()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            case 'default':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $time = explode(':', $val); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                if (count($time) != 3) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    throw $this->getValidationException(null, $val);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    list($hour, $minute, $second) = $time;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    return $this->getNativeTime($hour, $minute, $second);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
                            
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                            case 'any':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                try { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $dt = Carbon::parse($val);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                } catch (\Exception $e) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    throw $this->getValidationException($e->getMessage(), $val);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return $this->getNativeTime($dt->hour, $dt->minute, $dt->second);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            default:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $date = strptime($val, $this->format());  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                if ($date === false || $date['unparsed'] != '') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    throw $this->getValidationException(null, $val);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    return $this->getNativeTime($date['tm_hour'], $date['tm_min'], $date['tm_sec']);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function type()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return 'time';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    protected function getNativeTime($hour, $minute, $second)  | 
            
            
                                                        
            
                                    
            
            
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                    { | 
            
            
                                                        
            
                                    
            
            
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                        $parts = [$hour, $minute, $second];  | 
            
            
                                                        
            
                                    
            
            
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                        foreach ($parts as &$part) { | 
            
            
                                                        
            
                                    
            
            
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                            $part = (int) $part;  | 
            
            
                                                        
            
                                    
            
            
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                        }  | 
            
            
                                                        
            
                                    
            
            
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                        return $parts;  | 
            
            
                                                        
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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This check looks for unreachable code. It uses sophisticated control flow analysis techniques to find statements which will never be executed.
Unreachable code is most often the result of
return,dieorexitstatements that have been added for debug purposes.In the above example, the last
return falsewill never be executed, because a return statement has already been met in every possible execution path.