capnp-js/builder/list/has.js

Capnproto run-time decoding and encoding for Node

var fields = require('../fields');
    module.exports = function(List) {
        var has = fields.pointer.has();
        List._FIELD.has = function(offset) {
            return function() {
                return has(this, offset);
            };
        };
        List._FIELD.unionHas = function(discr, offset) {
            return function() {
                fields.throwOnInactive(this.which(), discr);
                return has(this, offset);
            };
        };
    };