@angular/compiler/src/assertions.js

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
(function (factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        var v = factory(require, exports);
        if (v !== undefined) module.exports = v;
    }
    else if (typeof define === "function" && define.amd) {
        define("@angular/compiler/src/assertions", ["require", "exports"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    function assertArrayOfStrings(identifier, value) {
        if (value == null) {
            return;
        }
        if (!Array.isArray(value)) {
            throw new Error("Expected '" + identifier + "' to be an array of strings.");
        }
        for (var i = 0; i < value.length; i += 1) {
            if (typeof value[i] !== 'string') {
                throw new Error("Expected '" + identifier + "' to be an array of strings.");
            }
        }
    }
    exports.assertArrayOfStrings = assertArrayOfStrings;
    var UNUSABLE_INTERPOLATION_REGEXPS = [
        /^\s*$/,
        /[<>]/,
        /^[{}]$/,
        /&(#|[a-z])/i,
        /^\/\//,
    ];
    function assertInterpolationSymbols(identifier, value) {
        if (value != null && !(Array.isArray(value) && value.length == 2)) {
            throw new Error("Expected '" + identifier + "' to be an array, [start, end].");
        }
        else if (value != null) {
            var start_1 = value[0];
            var end_1 = value[1];
            // Check for unusable interpolation symbols
            UNUSABLE_INTERPOLATION_REGEXPS.forEach(function (regexp) {
                if (regexp.test(start_1) || regexp.test(end_1)) {
                    throw new Error("['" + start_1 + "', '" + end_1 + "'] contains unusable interpolation symbol.");
                }
            });
        }
    }
    exports.assertInterpolationSymbols = assertInterpolationSymbols;
});
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