Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1 | // Copyright 2016 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | var thrower = { [Symbol.toPrimitive]: () => FAIL }; |
| 6 | |
| 7 | // Tests that a native conversion function is included in the |
| 8 | // stack trace. |
| 9 | function testTraceNativeConversion(nativeFunc) { |
| 10 | var nativeFuncName = nativeFunc.name; |
| 11 | try { |
| 12 | nativeFunc(thrower); |
| 13 | assertUnreachable(nativeFuncName); |
| 14 | } catch (e) { |
| 15 | assertTrue(e.stack.indexOf(nativeFuncName) >= 0, nativeFuncName); |
| 16 | } |
| 17 | } |
| 18 | |
| 19 | testTraceNativeConversion(Math.max); |
| 20 | testTraceNativeConversion(Math.min); |
| 21 | |
| 22 | function testBuiltinInStackTrace(script, nativeFuncName) { |
| 23 | try { |
| 24 | eval(script); |
| 25 | assertUnreachable(nativeFuncName); |
| 26 | } catch (e) { |
| 27 | assertTrue(e.stack.indexOf(nativeFuncName) >= 0, nativeFuncName); |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | // Use the full name ('String.getDate') in order to avoid false pass |
| 32 | // results when the method name is mentioned in the error message itself. |
| 33 | // This occurs, e.g., for Date.prototype.getYear, which uses a different code |
| 34 | // path and never hits the Generate_DatePrototype_GetField builtin. |
| 35 | testBuiltinInStackTrace("Date.prototype.getDate.call('')", "String.getDate"); |
| 36 | testBuiltinInStackTrace("Date.prototype.getUTCDate.call('')", |
| 37 | "String.getUTCDate"); |
| 38 | testBuiltinInStackTrace("Date.prototype.getTime.call('')", "String.getTime"); |