jaywalk/dist/types/number.js

Runtime type validation

"use strict";
var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var any_1 = require('./any');
var utils_1 = require('../utils');
var Number = (function (_super) {
    __extends(Number, _super);
    function Number(options) {
        if (options === void 0) { options = {}; }
        _super.call(this, options);
        this.type = 'Number';
        if (options.min != null) {
            this.min = options.min;
        }
        if (options.max != null) {
            this.max = options.max;
        }
        this._tests.push(isNumber);
        this._tests.push(toMinTest(this.min));
        this._tests.push(toMaxTest(this.max));
    }
    Number.prototype._isType = function (value, path, context) {
        return utils_1.wrapIsType(this, value, path, context, _super.prototype._isType, function (value) {
            if (typeof value === 'number') {
                return 1;
            }
            throw context.error(path, 'Number', 'type', 'Number', value);
        });
    };
    return Number;
}(any_1.Any));
exports.Number = Number;
function isNumber(value, path, context, next) {
    if (typeof value !== 'number' || !isFinite(value)) {
        throw context.error(path, 'Number', 'type', 'Number', value);
    }
    return next(value);
}
function toMinTest(min) {
    if (min == null) {
        return utils_1.toNext;
    }
    var minValue = utils_1.toValue(min);
    return function (value, path, context, next) {
        var min = minValue(path, context);
        if (value < min) {
            throw context.error(path, 'Number', 'min', min, value);
        }
        return next(value);
    };
}
function toMaxTest(max) {
    if (max == null) {
        return utils_1.toNext;
    }
    var maxValue = utils_1.toValue(max);
    return function (value, path, context, next) {
        var max = maxValue(path, context);
        if (value > max) {
            throw context.error(path, 'Number', 'max', max, value);
        }
        return next(value);
    };
}
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