shuiwu/node_modules/less/lib/less/tree/variable.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var node_1 = tslib_1.__importDefault(require("./node"));
var call_1 = tslib_1.__importDefault(require("./call"));
var Variable = function (name, index, currentFileInfo) {
    this.name = name;
    this._index = index;
    this._fileInfo = currentFileInfo;
};
Variable.prototype = Object.assign(new node_1.default(), {
    type: 'Variable',
    eval: function (context) {
        var variable, name = this.name;
        if (name.indexOf('@@') === 0) {
            name = "@" + new Variable(name.slice(1), this.getIndex(), this.fileInfo()).eval(context).value;
        }
        if (this.evaluating) {
            throw { type: 'Name',
                message: "Recursive variable definition for " + name,
                filename: this.fileInfo().filename,
                index: this.getIndex() };
        }
        this.evaluating = true;
        variable = this.find(context.frames, function (frame) {
            var v = frame.variable(name);
            if (v) {
                if (v.important) {
                    var importantScope = context.importantScope[context.importantScope.length - 1];
                    importantScope.important = v.important;
                }
                // If in calc, wrap vars in a function call to cascade evaluate args first
                if (context.inCalc) {
                    return (new call_1.default('_SELF', [v.value])).eval(context);
                }
                else {
                    return v.value.eval(context);
                }
            }
        });
        if (variable) {
            this.evaluating = false;
            return variable;
        }
        else {
            throw { type: 'Name',
                message: "variable " + name + " is undefined",
                filename: this.fileInfo().filename,
                index: this.getIndex() };
        }
    },
    find: function (obj, fun) {
        for (var i = 0, r = void 0; i < obj.length; i++) {
            r = fun.call(obj, obj[i]);
            if (r) {
                return r;
            }
        }
        return null;
    }
});
exports.default = Variable;
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