Strict mode eval/arguments LHS.

test/mjsunit/strict-mode.js

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 127 matching lines @@
 CheckStrictMode("var x = { 3.14 : 1, '3.14' : 2 };", SyntaxError)
 CheckStrictMode("var x = { 123: 1, 123.00000000000000000000000000000000000000000000000000000000000000000001 : 2 }", SyntaxError)
 
 // Non-conflicting data properties.
 function StrictModeNonDuplicate() {
   "use strict";
   var x = { 123 : 1, "0123" : 2 };
   var x = { 123: 1, '123.00000000000000000000000000000000000000000000000000000000000000000001' : 2 }
 }
 
-//CheckStrictMode("", SyntaxError)
-
 // Two getters (non-strict)
 assertThrows("var x = { get foo() { }, get foo() { } };", SyntaxError)
 assertThrows("var x = { get foo(){}, get 'foo'(){}};", SyntaxError)
 assertThrows("var x = { get 12(){}, get '12'(){}};", SyntaxError)
 
 // Two setters (non-strict)
 assertThrows("var x = { set foo(v) { }, set foo(v) { } };", SyntaxError)
 assertThrows("var x = { set foo(v) { }, set 'foo'(v) { } };", SyntaxError)
 assertThrows("var x = { set 13(v) { }, set '13'(v) { } };", SyntaxError)
 
@@ skipping 11 matching lines @@
 assertThrows("var x = { '12': 1, set '12'(v){}};", SyntaxError);
 assertThrows("var x = { '12': 1, set 12(v){}};", SyntaxError);
 
 // Getter and data (non-strict)
 assertThrows("var x = { foo: 'data', get foo() { } };", SyntaxError)
 assertThrows("var x = { get foo() { }, foo: 'data' };", SyntaxError)
 assertThrows("var x = { 'foo': 'data', get foo() { } };", SyntaxError)
 assertThrows("var x = { get 'foo'() { }, 'foo': 'data' };", SyntaxError)
 assertThrows("var x = { '12': 1, get '12'(){}};", SyntaxError);
 assertThrows("var x = { '12': 1, get 12(){}};", SyntaxError);
+
+// Assignment to eval or arguments
+CheckStrictMode("function strict() { eval = undefined; }", SyntaxError)
+CheckStrictMode("function strict() { arguments = undefined; }", SyntaxError)
+CheckStrictMode("function strict() { print(eval = undefined); }", SyntaxError)
+CheckStrictMode("function strict() { print(arguments = undefined); }", SyntaxError)
+CheckStrictMode("function strict() { var x = eval = undefined; }", SyntaxError)
+CheckStrictMode("function strict() { var x = arguments = undefined; }", SyntaxError)
+

[Lasse Reichstein, 2011/01/26 08:03:59]

Try a compound assignment operator as well, e.g., "-=".

[Martin Maly, 2011/01/26 19:19:33]

Done.

+// Postfix increment with eval or arguments
+CheckStrictMode("function strict() { eval++; }", SyntaxError)
+CheckStrictMode("function strict() { arguments++; }", SyntaxError)
+CheckStrictMode("function strict() { print(eval++); }", SyntaxError)
+CheckStrictMode("function strict() { print(arguments++); }", SyntaxError)
+CheckStrictMode("function strict() { var x = eval++; }", SyntaxError)
+CheckStrictMode("function strict() { var x = arguments++; }", SyntaxError)
+
+// Postfix decrement with eval or arguments
+CheckStrictMode("function strict() { eval--; }", SyntaxError)
+CheckStrictMode("function strict() { arguments--; }", SyntaxError)
+CheckStrictMode("function strict() { print(eval--); }", SyntaxError)
+CheckStrictMode("function strict() { print(arguments--); }", SyntaxError)
+CheckStrictMode("function strict() { var x = eval--; }", SyntaxError)
+CheckStrictMode("function strict() { var x = arguments--; }", SyntaxError)
+
+// Prefix increment with eval or arguments
+CheckStrictMode("function strict() { ++eval; }", SyntaxError)
+CheckStrictMode("function strict() { ++arguments; }", SyntaxError)
+CheckStrictMode("function strict() { print(++eval); }", SyntaxError)
+CheckStrictMode("function strict() { print(++arguments); }", SyntaxError)
+CheckStrictMode("function strict() { var x = ++eval; }", SyntaxError)
+CheckStrictMode("function strict() { var x = ++arguments; }", SyntaxError)
+
+// Prefix decrement with eval or arguments
+CheckStrictMode("function strict() { --eval; }", SyntaxError)
+CheckStrictMode("function strict() { --arguments; }", SyntaxError)
+CheckStrictMode("function strict() { print(--eval); }", SyntaxError)
+CheckStrictMode("function strict() { print(--arguments); }", SyntaxError)
+CheckStrictMode("function strict() { var x = --eval; }", SyntaxError)
+CheckStrictMode("function strict() { var x = --arguments; }", SyntaxError)

[Lasse Reichstein, 2011/01/26 08:03:59]

Check that not-lvalue-operand operators doesn't throw, e.g., "!" or "-".

[Martin Maly, 2011/01/26 19:19:33]

Done.

+