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Issue 962263002: Disallow subclassing Arrays. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Fixes for debug-code issues Created 5 years, 9 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 // ------------------------------------------------------------------- 5 // -------------------------------------------------------------------
6 6
7 var kMessages = { 7 var kMessages = {
8 // Error 8 // Error
9 cyclic_proto: ["Cyclic __proto__ value"], 9 cyclic_proto: ["Cyclic __proto__ value"],
10 code_gen_from_strings: ["%0"], 10 code_gen_from_strings: ["%0"],
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180 symbol_to_number: ["Cannot convert a Symbol value to a number"], 180 symbol_to_number: ["Cannot convert a Symbol value to a number"],
181 module_export_undefined: ["Export '", "%0", "' is not defined in module" ], 181 module_export_undefined: ["Export '", "%0", "' is not defined in module" ],
182 duplicate_export: ["Duplicate export of '", "%0", "'"], 182 duplicate_export: ["Duplicate export of '", "%0", "'"],
183 unexpected_super: ["'super' keyword unexpected here"], 183 unexpected_super: ["'super' keyword unexpected here"],
184 extends_value_not_a_function: ["Class extends value ", "%0", " is not a funct ion or null"], 184 extends_value_not_a_function: ["Class extends value ", "%0", " is not a funct ion or null"],
185 prototype_parent_not_an_object: ["Class extends value does not have valid prot otype property ", "%0"], 185 prototype_parent_not_an_object: ["Class extends value does not have valid prot otype property ", "%0"],
186 duplicate_constructor: ["A class may only have one constructor"], 186 duplicate_constructor: ["A class may only have one constructor"],
187 super_constructor_call: ["A 'super' constructor call may only appear as the first statement of a function, and its arguments may not access 'this'. Oth er forms are not yet supported."], 187 super_constructor_call: ["A 'super' constructor call may only appear as the first statement of a function, and its arguments may not access 'this'. Oth er forms are not yet supported."],
188 duplicate_proto: ["Duplicate __proto__ fields are not allowed in object literals"], 188 duplicate_proto: ["Duplicate __proto__ fields are not allowed in object literals"],
189 param_after_rest: ["Rest parameter must be last formal parameter" ], 189 param_after_rest: ["Rest parameter must be last formal parameter" ],
190 constructor_noncallable: ["Class constructors cannot be invoked without 'new'"] 190 constructor_noncallable: ["Class constructors cannot be invoked without 'new'"],
191 array_not_subclassable: ["Subclassing Arrays is not currently supported ."]
191 }; 192 };
192 193
193 194
194 function FormatString(format, args) { 195 function FormatString(format, args) {
195 var result = ""; 196 var result = "";
196 var arg_num = 0; 197 var arg_num = 0;
197 for (var i = 0; i < format.length; i++) { 198 for (var i = 0; i < format.length; i++) {
198 var str = format[i]; 199 var str = format[i];
199 if (str.length == 2 && %_StringCharCodeAt(str, 0) == 0x25) { 200 if (str.length == 2 && %_StringCharCodeAt(str, 0) == 0x25) {
200 // Two-char string starts with "%". 201 // Two-char string starts with "%".
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1321 function SetUpStackOverflowBoilerplate() { 1322 function SetUpStackOverflowBoilerplate() {
1322 var boilerplate = MakeRangeError('stack_overflow', []); 1323 var boilerplate = MakeRangeError('stack_overflow', []);
1323 1324
1324 %DefineAccessorPropertyUnchecked( 1325 %DefineAccessorPropertyUnchecked(
1325 boilerplate, 'stack', StackTraceGetter, StackTraceSetter, DONT_ENUM); 1326 boilerplate, 'stack', StackTraceGetter, StackTraceSetter, DONT_ENUM);
1326 1327
1327 return boilerplate; 1328 return boilerplate;
1328 } 1329 }
1329 1330
1330 var kStackOverflowBoilerplate = SetUpStackOverflowBoilerplate(); 1331 var kStackOverflowBoilerplate = SetUpStackOverflowBoilerplate();
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