es6-super.js

// -*- coding: utf-8 -*-
//  Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>
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import { expect } from "chai";
import espree from "./util/espree.js";
import { analyze } from "../lib/index.js";

describe("ES6 super", () => {
    it("is not handled as reference", () => {
        const ast = espree(`
            class Foo extends Bar {
                constructor() {
                    super();
                }

                method() {
                    super.method();
                }
            }
        `);

        const scopeManager = analyze(ast, { ecmaVersion: 6 });

        expect(scopeManager.scopes).to.have.length(4);

        let scope = scopeManager.scopes[0];

        expect(scope.type).to.be.equal("global");
        expect(scope.variables).to.have.length(1);
        expect(scope.variables[0].name).to.be.equal("Foo");
        expect(scope.references).to.have.length(0);

        scope = scopeManager.scopes[1];
        expect(scope.type).to.be.equal("class");
        expect(scope.variables).to.have.length(1);
        expect(scope.variables[0].name).to.be.equal("Foo");
        expect(scope.references).to.have.length(1);
        expect(scope.references[0].identifier.name).to.be.equal("Bar");

        scope = scopeManager.scopes[2];
        expect(scope.type).to.be.equal("function");
        expect(scope.variables).to.have.length(1);
        expect(scope.variables[0].name).to.be.equal("arguments");
        expect(scope.references).to.have.length(0); // super is specially handled like `this`.

        scope = scopeManager.scopes[3];
        expect(scope.type).to.be.equal("function");
        expect(scope.variables).to.have.length(1);
        expect(scope.variables[0].name).to.be.equal("arguments");
        expect(scope.references).to.have.length(0); // super is specially handled like `this`.
    });
});

// vim: set sw=4 ts=4 et tw=80 :