82 lines
3.5 KiB
JavaScript
82 lines
3.5 KiB
JavaScript
"use strict";
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var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
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function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
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var Collapser = require("./collapser");
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var SetCollapser = function (_Collapser) {
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_inherits(SetCollapser, _Collapser);
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function SetCollapser() {
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_classCallCheck(this, SetCollapser);
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return _possibleConstructorReturn(this, (SetCollapser.__proto__ || Object.getPrototypeOf(SetCollapser)).apply(this, arguments));
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}
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_createClass(SetCollapser, [{
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key: "isInitTypeValid",
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value: function isInitTypeValid(init) {
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return init.isNewExpression() && init.get("callee").isIdentifier() && init.node.callee.name === "Set" && (
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// other iterables might not be append-able
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init.node.arguments.length === 0 || init.node.arguments.length === 1 && init.get("arguments")[0].isArrayExpression());
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}
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}, {
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key: "isExpressionTypeValid",
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value: function isExpressionTypeValid(expr) {
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return expr.isCallExpression();
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}
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}, {
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key: "getExpressionChecker",
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value: function getExpressionChecker(objName, checkReference) {
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return function (expr) {
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// checks expr is of form:
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// foo.add(rval)
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var callee = expr.get("callee");
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if (!callee.isMemberExpression()) {
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return false;
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}
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var obj = callee.get("object"),
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prop = callee.get("property");
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if (!obj.isIdentifier() || obj.node.name !== objName || !prop.isIdentifier() || prop.node.name !== "add") {
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return false;
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}
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var args = expr.get("arguments");
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if (args.length !== 1) {
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return false;
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}
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if (checkReference(args[0])) {
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return false;
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}
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return true;
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};
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}
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}, {
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key: "extractAssignment",
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value: function extractAssignment(expr) {
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return expr.node.arguments[0];
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}
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}, {
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key: "addSuccessfully",
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value: function addSuccessfully(t, arg, init) {
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if (init.arguments.length === 0) {
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init.arguments.push(t.arrayExpression());
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}
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init.arguments[0].elements.push(arg);
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return true;
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}
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}]);
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return SetCollapser;
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}(Collapser);
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module.exports = SetCollapser; |