js/src/jit-test/tests/debug/Script-isInCatchScope.js@6474c204b198
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.
1 // Test if isInCatchScope properly detects catch blocks.
3 let g = newGlobal();
4 let dbg = new Debugger(g);
6 function test(string, mustBeCaught) {
7 let index = 0;
8 dbg.onExceptionUnwind = function (frame) {
9 let willBeCaught = false;
10 do {
11 if (frame.script.isInCatchScope(frame.offset)) {
12 willBeCaught = true;
13 break;
14 }
15 frame = frame.older;
16 } while (frame != null);
17 assertEq(willBeCaught, mustBeCaught[index++]);
18 };
20 try {
21 g.eval(string);
22 } catch (ex) {}
23 assertEq(index, mustBeCaught.length);
24 }
26 // Should correctly detect catch blocks
27 test("throw new Error();", [false]);
28 test("try { throw new Error(); } catch (e) {}", [true]);
29 test("try { throw new Error(); } finally {}", [false, false]);
30 test("try { throw new Error(); } catch (e) {} finally {}", [true]);
32 // Source of the exception shouldn't matter
33 test("(null)();", [false]);
34 test("try { (null)(); } catch (e) {}", [true]);
35 test("try { (null)(); } finally {}", [false, false]);
36 test("try { (null)(); } catch (e) {} finally {}", [true]);
38 // Should correctly detect catch blocks in functions
39 test("function f() { throw new Error(); } f();", [false, false]);
40 test("function f() { try { throw new Error(); } catch (e) {} } f();", [true]);
41 test("function f() { try { throw new Error(); } finally {} } f();", [false, false, false]);
42 test("function f() { try { throw new Error(); } catch (e) {} finally {} } f();", [true]);
44 // Should correctly detect catch blocks in evals
45 test("eval('throw new Error();')", [false, false]);
46 test("eval('try { throw new Error(); } catch (e) {}');", [true]);
47 test("eval('try { throw new Error(); } finally {}');", [false, false, false]);
48 test("eval('try { throw new Error(); } catch (e) {} finally {}');", [true]);
50 // Should correctly detect rethrows
51 test("try { throw new Error(); } catch (e) { throw e; }", [true, false]);
52 test("try { try { throw new Error(); } catch (e) { throw e; } } catch (e) {}", [true, true]);
53 test("try { try { throw new Error(); } finally {} } catch (e) {}", [true, true]);
54 test("function f() { try { throw new Error(); } catch (e) { throw e; } } f();", [true, false, false]);
55 test("function f() { try { try { throw new Error(); } catch (e) { throw e; } } catch (e) {} } f();", [true, true]);
56 test("function f() { try { try { throw new Error(); } finally {} } catch (e) {} } f();", [true, true]);
57 test("eval('try { throw new Error(); } catch (e) { throw e; }')", [true, false, false]);
58 test("eval('try { try { throw new Error(); } catch (e) { throw e; } } catch (e) {}')", [true, true]);
60 // Should correctly detect catch blocks across frame boundaries
61 test("function f() { throw new Error(); } try { f(); } catch (e) {}", [true, true]);
62 test("function f() { throw new Error(); } try { f(); } catch (e) { throw e; }", [true, true, false]);
63 test("try { eval('throw new Error()'); } catch (e) {}", [true, true]);
64 test("try { eval('throw new Error()'); } catch (e) { throw e; }", [true, true, false]);
66 // Should correctly detect catch blocks just before and just after throws
67 test("throw new Error; try {} catch (e) {}", [false]);
68 test("try {} catch (e) {} throw new Error();", [false]);
