es6-switch.js 9.42 KB
(function() {
  var escope, expect, harmony;

  expect = require('chai').expect;

  harmony = require('../third_party/esprima');

  escope = require('..');

  describe('ES6 switch', function() {
    return it('materialize scope', function() {
      var ast, scope, scopeManager;
      ast = harmony.parse("switch (ok) {\n    case hello:\n        let i = 20;\n        i;\n        break;\n\n    default:\n        let test = 30;\n        test;\n}");
      scopeManager = escope.analyze(ast, {
        ecmaVersion: 6
      });
      expect(scopeManager.scopes).to.have.length(2);
      scope = scopeManager.scopes[0];
      expect(scope.type).to.be.equal('global');
      expect(scope.block.type).to.be.equal('Program');
      expect(scope.isStrict).to.be["false"];
      expect(scope.variables).to.have.length(0);
      expect(scope.references).to.have.length(1);
      expect(scope.references[0].identifier.name).to.be.equal('ok');
      scope = scopeManager.scopes[1];
      expect(scope.type).to.be.equal('switch');
      expect(scope.block.type).to.be.equal('SwitchStatement');
      expect(scope.isStrict).to.be["false"];
      expect(scope.variables).to.have.length(2);
      expect(scope.variables[0].name).to.be.equal('i');
      expect(scope.variables[1].name).to.be.equal('test');
      expect(scope.references).to.have.length(5);
      expect(scope.references[0].identifier.name).to.be.equal('hello');
      expect(scope.references[1].identifier.name).to.be.equal('i');
      expect(scope.references[2].identifier.name).to.be.equal('i');
      expect(scope.references[3].identifier.name).to.be.equal('test');
      return expect(scope.references[4].identifier.name).to.be.equal('test');
    });
  });

}).call(this);

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