patternseek / componentview

        foreach ($inputSpec as $fieldName => $fieldSpec) {

            // Required field

            if (( count( $fieldSpec ) < 2 )) {

                if (!isset( $inputs[ $fieldName ] )) {

                    $calledFunc = debug_backtrace()[1]['function'];

                    $callerFunc = debug_backtrace()[2]['function'];

                    $callerClass = debug_backtrace()[2]['class'];

                    $parentText = '';

                    if( $this->parent !== null ){

                        $parentText = " (parent component is ".get_class($this->parent).")";

                    }

                    throw new \Exception( $fieldName . " is a required field for " . get_class( $this )."::{$calledFunc}() called from {$callerClass}::{$callerFunc}(){$parentText}" );

                }

            }

            // Set default is unset

            if (!isset( $inputs[ $fieldName ] )) {

                $inputs[ $fieldName ] = $fieldSpec[ 1 ];

                    default:

                        $failed = !( $input instanceof $requiredType );

                }

                if ($failed) {

                    $calledFunc = debug_backtrace()[1]['function'];

                    $callerFunc = debug_backtrace()[2]['function'];

                    $callerClass = debug_backtrace()[2]['class'];

                    $parentText = '';

                    if( $this->parent !== null ){

                        $parentText = " (parent component is ".get_class($this->parent).")";

                    }

                    throw new \Exception( $fieldName . " should be of type " . $requiredType . "in " . get_class( $this )."::{$calledFunc}() called from {$callerClass}::{$callerFunc}(){$parentText}" );

                }

            }

        }

    }