Method Execute

filters.go:80–98

(v *Value, ctx *ExecutionContext)

}

func (fc *filterCall) Execute(v *Value, ctx *ExecutionContext) (*Value, *Error) {
	var param *Value
	var err *Error

	if fc.parameter != nil {
		param, err = fc.parameter.Evaluate(ctx)
		if err != nil {
			return nil, err
		}
	} else {
		param = AsValue(nil)
	}

	filteredValue, err := fc.filterFunc(v, param)
	if err != nil {
		return nil, err.updateFromTokenIfNeeded(ctx.template, fc.token)
	}
	return filteredValue, nil
}

// Filter = IDENT | IDENT ":" FilterArg | IDENT "|" Filter
func (p *Parser) parseFilter() (*filterCall, *Error) {