js/src/jit-test/tests/debug/Script-isInCatchScope.js@6474c204b198 (annotated)
js/src/jit-test/tests/debug/Script-isInCatchScope.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | // Test if isInCatchScope properly detects catch blocks. |
| michael@0 | 2 | |
| michael@0 | 3 | let g = newGlobal(); |
| michael@0 | 4 | let dbg = new Debugger(g); |
| michael@0 | 5 | |
| michael@0 | 6 | function test(string, mustBeCaught) { |
| michael@0 | 7 | let index = 0; |
| michael@0 | 8 | dbg.onExceptionUnwind = function (frame) { |
| michael@0 | 9 | let willBeCaught = false; |
| michael@0 | 10 | do { |
| michael@0 | 11 | if (frame.script.isInCatchScope(frame.offset)) { |
| michael@0 | 12 | willBeCaught = true; |
| michael@0 | 13 | break; |
| michael@0 | 14 | } |
| michael@0 | 15 | frame = frame.older; |
| michael@0 | 16 | } while (frame != null); |
| michael@0 | 17 | assertEq(willBeCaught, mustBeCaught[index++]); |
| michael@0 | 18 | }; |
| michael@0 | 19 | |
| michael@0 | 20 | try { |
| michael@0 | 21 | g.eval(string); |
| michael@0 | 22 | } catch (ex) {} |
| michael@0 | 23 | assertEq(index, mustBeCaught.length); |
| michael@0 | 24 | } |
| michael@0 | 25 | |
| michael@0 | 26 | // Should correctly detect catch blocks |
| michael@0 | 27 | test("throw new Error();", [false]); |
| michael@0 | 28 | test("try { throw new Error(); } catch (e) {}", [true]); |
| michael@0 | 29 | test("try { throw new Error(); } finally {}", [false, false]); |
| michael@0 | 30 | test("try { throw new Error(); } catch (e) {} finally {}", [true]); |
| michael@0 | 31 | |
| michael@0 | 32 | // Source of the exception shouldn't matter |
| michael@0 | 33 | test("(null)();", [false]); |
| michael@0 | 34 | test("try { (null)(); } catch (e) {}", [true]); |
| michael@0 | 35 | test("try { (null)(); } finally {}", [false, false]); |
| michael@0 | 36 | test("try { (null)(); } catch (e) {} finally {}", [true]); |
| michael@0 | 37 | |
| michael@0 | 38 | // Should correctly detect catch blocks in functions |
| michael@0 | 39 | test("function f() { throw new Error(); } f();", [false, false]); |
| michael@0 | 40 | test("function f() { try { throw new Error(); } catch (e) {} } f();", [true]); |
| michael@0 | 41 | test("function f() { try { throw new Error(); } finally {} } f();", [false, false, false]); |
| michael@0 | 42 | test("function f() { try { throw new Error(); } catch (e) {} finally {} } f();", [true]); |
| michael@0 | 43 | |
| michael@0 | 44 | // Should correctly detect catch blocks in evals |
| michael@0 | 45 | test("eval('throw new Error();')", [false, false]); |
| michael@0 | 46 | test("eval('try { throw new Error(); } catch (e) {}');", [true]); |
| michael@0 | 47 | test("eval('try { throw new Error(); } finally {}');", [false, false, false]); |
| michael@0 | 48 | test("eval('try { throw new Error(); } catch (e) {} finally {}');", [true]); |
| michael@0 | 49 | |
| michael@0 | 50 | // Should correctly detect rethrows |
| michael@0 | 51 | test("try { throw new Error(); } catch (e) { throw e; }", [true, false]); |
| michael@0 | 52 | test("try { try { throw new Error(); } catch (e) { throw e; } } catch (e) {}", [true, true]); |
| michael@0 | 53 | test("try { try { throw new Error(); } finally {} } catch (e) {}", [true, true]); |
| michael@0 | 54 | test("function f() { try { throw new Error(); } catch (e) { throw e; } } f();", [true, false, false]); |
| michael@0 | 55 | test("function f() { try { try { throw new Error(); } catch (e) { throw e; } } catch (e) {} } f();", [true, true]); |
| michael@0 | 56 | test("function f() { try { try { throw new Error(); } finally {} } catch (e) {} } f();", [true, true]); |
| michael@0 | 57 | test("eval('try { throw new Error(); } catch (e) { throw e; }')", [true, false, false]); |
| michael@0 | 58 | test("eval('try { try { throw new Error(); } catch (e) { throw e; } } catch (e) {}')", [true, true]); |
| michael@0 | 59 | |
| michael@0 | 60 | // Should correctly detect catch blocks across frame boundaries |
| michael@0 | 61 | test("function f() { throw new Error(); } try { f(); } catch (e) {}", [true, true]); |
| michael@0 | 62 | test("function f() { throw new Error(); } try { f(); } catch (e) { throw e; }", [true, true, false]); |
| michael@0 | 63 | test("try { eval('throw new Error()'); } catch (e) {}", [true, true]); |
| michael@0 | 64 | test("try { eval('throw new Error()'); } catch (e) { throw e; }", [true, true, false]); |
| michael@0 | 65 | |
| michael@0 | 66 | // Should correctly detect catch blocks just before and just after throws |
| michael@0 | 67 | test("throw new Error; try {} catch (e) {}", [false]); |
| michael@0 | 68 | test("try {} catch (e) {} throw new Error();", [false]); |
