@angular/compiler/src/output/value_util.js

Angular - the compiler library

/**
 * @license
 * Copyright Google LLC 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/output/value_util", ["require", "exports", "@angular/compiler/src/util", "@angular/compiler/src/output/output_ast"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    exports.convertValueToOutputAst = exports.QUOTED_KEYS = void 0;
    var util_1 = require("@angular/compiler/src/util");
    var o = require("@angular/compiler/src/output/output_ast");
    exports.QUOTED_KEYS = '$quoted$';
    function convertValueToOutputAst(ctx, value, type) {
        if (type === void 0) { type = null; }
        return util_1.visitValue(value, new _ValueOutputAstTransformer(ctx), type);
    }
    exports.convertValueToOutputAst = convertValueToOutputAst;
    var _ValueOutputAstTransformer = /** @class */ (function () {
        function _ValueOutputAstTransformer(ctx) {
            this.ctx = ctx;
        }
        _ValueOutputAstTransformer.prototype.visitArray = function (arr, type) {
            var values = [];
            // Note Array.map() must not be used to convert the values because it will
            // skip over empty elements in arrays constructed using `new Array(length)`,
            // resulting in `undefined` elements. This breaks the type guarantee that
            // all values in `o.LiteralArrayExpr` are of type `o.Expression`.
            // See test case in `value_util_spec.ts`.
            for (var i = 0; i < arr.length; ++i) {
                values.push(util_1.visitValue(arr[i], this, null /* context */));
            }
            return o.literalArr(values, type);
        };
        _ValueOutputAstTransformer.prototype.visitStringMap = function (map, type) {
            var _this = this;
            var entries = [];
            var quotedSet = new Set(map && map[exports.QUOTED_KEYS]);
            Object.keys(map).forEach(function (key) {
                entries.push(new o.LiteralMapEntry(key, util_1.visitValue(map[key], _this, null), quotedSet.has(key)));
            });
            return new o.LiteralMapExpr(entries, type);
        };
        _ValueOutputAstTransformer.prototype.visitPrimitive = function (value, type) {
            return o.literal(value, type);
        };
        _ValueOutputAstTransformer.prototype.visitOther = function (value, type) {
            if (value instanceof o.Expression) {
                return value;
            }
            else {
                return this.ctx.importExpr(value);
            }
        };
        return _ValueOutputAstTransformer;
    }());
});
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