[strong] Make functions and generators non-extensible non-constructors

test/mjsunit/strong/functions.js

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Flags: --strong-mode
 
 'use strong';
 
+function f() {}
+function* g() {}
+
 (function NoArguments() {
   assertThrows("'use strong'; arguments", SyntaxError);
   assertThrows("'use strong'; function f() { arguments }", SyntaxError);
+  assertThrows("'use strong'; function* g() { arguments }", SyntaxError);
   assertThrows("'use strong'; let f = function() { arguments }", SyntaxError);
+  assertThrows("'use strong'; let g = function*() { arguments }", SyntaxError);
   assertThrows("'use strong'; let f = () => arguments", SyntaxError);
   // The following are strict mode errors already.
   assertThrows("'use strong'; let arguments", SyntaxError);
   assertThrows("'use strong'; function f(arguments) {}", SyntaxError);
+  assertThrows("'use strong'; function* g(arguments) {}", SyntaxError);
   assertThrows("'use strong'; let f = (arguments) => {}", SyntaxError);
 })();
 
-function g() {}
+(function NoArgumentsProperty() {
+  assertFalse(f.hasOwnProperty("arguments"));
+  assertFalse(g.hasOwnProperty("arguments"));
+  assertThrows(function(){ f.arguments = 0 }, TypeError);
+  assertThrows(function(){ g.arguments = 0 }, TypeError);
+})();
 
-(function LexicalFunctionBindings(global) {
+(function NoCaller() {
+  assertFalse(f.hasOwnProperty("caller"));
+  assertFalse(g.hasOwnProperty("caller"));
+  assertThrows(function(){ f.caller = 0 }, TypeError);
+  assertThrows(function(){ g.caller = 0 }, TypeError);
+})();
+
+(function NoCallee() {
+  assertFalse("callee" in f);
+  assertFalse("callee" in g);
+  assertThrows(function(){ f.callee = 0 }, TypeError);
+  assertThrows(function(){ g.callee = 0 }, TypeError);
+})();
+
+(function LexicalBindings(global) {
+  assertEquals('function', typeof f);
   assertEquals('function', typeof g);
+  assertEquals(undefined, global.f);
   assertEquals(undefined, global.g);
 })(this);
 
-(function ImmutableFunctionBindings() {
-  function f() {}
-  assertThrows(function(){ eval("g = 0") }, TypeError);
-  assertThrows(function(){ eval("f = 0") }, TypeError);
+(function ImmutableBindings() {
+  function f2() {}
+  function* g2() {}
+  assertThrows(function(){ f = 0 }, TypeError);
+  assertThrows(function(){ g = 0 }, TypeError);
+  assertThrows(function(){ f2 = 0 }, TypeError);
+  assertThrows(function(){ g2 = 0 }, TypeError);
+  assertEquals('function', typeof f);
   assertEquals('function', typeof g);
-  assertEquals('function', typeof f);
+  assertEquals('function', typeof f2);
+  assertEquals('function', typeof g2);
 })();
+
+(function NonExtensible() {
+  assertThrows(function(){ f.a = 0 }, TypeError);
+  assertThrows(function(){ g.a = 0 }, TypeError);
+  assertThrows(function(){ Object.defineProperty(f, "a", {value: 0}) }, TypeError);
+  assertThrows(function(){ Object.defineProperty(g, "a", {value: 0}) }, TypeError);
+  assertThrows(function(){ Object.setPrototypeOf(f, {}) }, TypeError);
+  assertThrows(function(){ Object.setPrototypeOf(g, {}) }, TypeError);
+})();
+
+(function NoPrototype() {
+  assertFalse("prototype" in f);
+  assertFalse(g.hasOwnProperty("prototype"));
+  assertThrows(function(){ f.prototype = 0 }, TypeError);
+  assertThrows(function(){ g.prototype = 0 }, TypeError);
+  assertThrows(function(){ f.prototype.a = 0 }, TypeError);
+})();
+
+(function NonConstructor() {
+  assertThrows(function(){ new f }, TypeError);
+  assertThrows(function(){ new g }, TypeError);
+})();