object-shorthand.js

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load(libdir + 'asserts.js');

// globals:

a = b = get = set = eval = arguments = 10;

assertEq({arguments}.arguments, 10);

var o = {a, b: b, get, set: set};

assertEq(o.a, 10);

assertEq(o.b, 10);

assertEq(o.get, 10);

assertEq(o.set, 10);

var names = ['a', 'get', 'set', 'eval'];

// global

names.forEach(ident =>

  assertEq(new Function('return {' + ident + '}.' + ident + ';')(), 10));

// local

names.forEach(ident =>

  assertEq(new Function('var ' + ident + ' = 20; return {' + ident + '}.' + ident + ';')(), 20));

// scope

names.forEach(ident =>

  assertEq(new Function('var ' + ident + ' = 30; return (function () {return {' + ident + '}.' + ident + ';})();')(), 30));

var reserved = [

  'break',

  'do',

  'in',

  'typeof',

  'case',

  'else',

  'instanceof',

  'var',

  'catch',

  'export',

  'new',

  'void',

  'class',

  'extends',

  'return',

  'while',

  'const',

  'finally',

  'super',

  'with',

  'continue',

  'for',

  'switch',

  'debugger',

  'function',

  'this',

  'delete',

  'import',

  'try',

  'enum',

  'null',

  'true',

  'false'

];

// non-identifiers should also throw

var nonidents = [

  '"str"',

'0'

];

reserved.concat(nonidents).forEach(ident =>

  assertThrowsInstanceOf(() => new Function('return {' + ident + '}'), SyntaxError));

var reservedStrict = [

  'implements',

  'interface',

  'package',

  'private',

  'protected',

  'public',

  'static',

  // XXX: according to 12.1.1, these should only be errors in strict code:

  // see https://bugzilla.mozilla.org/show_bug.cgi?id=1032150

  //'let',

  //'yield'

];

reservedStrict.forEach(ident =>

  assertEq(new Function('var ' + ident + ' = 10; return {' + ident + '}.' + ident + ';')(), 10));

reservedStrict.concat(['let', 'yield']).forEach(ident =>

  assertThrowsInstanceOf(() => new Function('"use strict"; return {' + ident + '}'), SyntaxError));