116 lines
2.4 KiB
JavaScript
116 lines
2.4 KiB
JavaScript
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export const validatorStack = {};
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export const inputStack = new WeakMap();
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export class Class{
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static get _validators(){ return validatorStack; }
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/* (1) Push a new Format
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*
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* @_format<String> Format name
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* @_validator<Function> Format callback
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* @_error<String> Error message
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*
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* @return pushed<bool> Whether the validator has been pushed
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*
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---------------------------------------------------------*/
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static pushFormat(_format=null, _validator=null, _error='error'){
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/* (1) Error: invalid _format */
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if( typeof _format !== 'string' )
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return false;
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/* (2) Error: invalid _validator */
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if( !(_validator instanceof Function) )
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return false;
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/* (3) Store validator */
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Class._validators[_format] = { error: _error, validator: _validator };
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return true;
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}
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/* (1) Pop an existing Format
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*
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* @_format<String> Format name
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*
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* @return popped<bool> Whether the validator has been popped
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*
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---------------------------------------------------------*/
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static popFormat(_format=null){
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/* (1) Error: invalid _format */
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if( typeof _format !== 'string' )
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return false;
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/* (2) Error: _validator not found */
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if( Class._validators[_format] == null )
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return false;
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/* (3) Remove validator */
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delete Class._validators[_format];
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return true;
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}
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/* (2) Builds an validat-able input
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*
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* @_format<String> Existing validator name
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* @_default<mixed> [OPT] Mutable input default value (default to NULL)
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*
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---------------------------------------------------------*/
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constructor(_format, _default=null){
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/* (1) Store fields (default value) */
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this.mutable = _default;
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/* (2) Store _format in STATIC inputStack */
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inputStack.set(this, { format: _format });
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}
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/* (3) Checks if the _mutable has a current valid value
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*
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* @return valid<bool> Whether the _mutable is valid or not
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*
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---------------------------------------------------------*/
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is_valid(){
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// 1. Extract validator name
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let format = inputStack.get(this).format;
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// 2. Dispatch validation
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return validatorStack[format].validator( this.mutable );
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}
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/* (3) Get current error message
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*
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* @return NULL if is_valid()
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*
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---------------------------------------------------------*/
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get error(){
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// 1. NULL if valid
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if( this.is_valid() )
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return '';
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// 2. Extract validator name
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let format = inputStack.get(this).format;
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// 3. Dispatch validation
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return validatorStack[format].error;
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}
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}
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