1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jit-test/tests/debug/Script-isInCatchScope.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,68 @@
1.4 +// Test if isInCatchScope properly detects catch blocks.
1.5 +
1.6 +let g = newGlobal();
1.7 +let dbg = new Debugger(g);
1.8 +
1.9 +function test(string, mustBeCaught) {
1.10 + let index = 0;
1.11 + dbg.onExceptionUnwind = function (frame) {
1.12 + let willBeCaught = false;
1.13 + do {
1.14 + if (frame.script.isInCatchScope(frame.offset)) {
1.15 + willBeCaught = true;
1.16 + break;
1.17 + }
1.18 + frame = frame.older;
1.19 + } while (frame != null);
1.20 + assertEq(willBeCaught, mustBeCaught[index++]);
1.21 + };
1.22 +
1.23 + try {
1.24 + g.eval(string);
1.25 + } catch (ex) {}
1.26 + assertEq(index, mustBeCaught.length);
1.27 +}
1.28 +
1.29 +// Should correctly detect catch blocks
1.30 +test("throw new Error();", [false]);
1.31 +test("try { throw new Error(); } catch (e) {}", [true]);
1.32 +test("try { throw new Error(); } finally {}", [false, false]);
1.33 +test("try { throw new Error(); } catch (e) {} finally {}", [true]);
1.34 +
1.35 +// Source of the exception shouldn't matter
1.36 +test("(null)();", [false]);
1.37 +test("try { (null)(); } catch (e) {}", [true]);
1.38 +test("try { (null)(); } finally {}", [false, false]);
1.39 +test("try { (null)(); } catch (e) {} finally {}", [true]);
1.40 +
1.41 +// Should correctly detect catch blocks in functions
1.42 +test("function f() { throw new Error(); } f();", [false, false]);
1.43 +test("function f() { try { throw new Error(); } catch (e) {} } f();", [true]);
1.44 +test("function f() { try { throw new Error(); } finally {} } f();", [false, false, false]);
1.45 +test("function f() { try { throw new Error(); } catch (e) {} finally {} } f();", [true]);
1.46 +
1.47 +// Should correctly detect catch blocks in evals
1.48 +test("eval('throw new Error();')", [false, false]);
1.49 +test("eval('try { throw new Error(); } catch (e) {}');", [true]);
1.50 +test("eval('try { throw new Error(); } finally {}');", [false, false, false]);
1.51 +test("eval('try { throw new Error(); } catch (e) {} finally {}');", [true]);
1.52 +
1.53 +// Should correctly detect rethrows
1.54 +test("try { throw new Error(); } catch (e) { throw e; }", [true, false]);
1.55 +test("try { try { throw new Error(); } catch (e) { throw e; } } catch (e) {}", [true, true]);
1.56 +test("try { try { throw new Error(); } finally {} } catch (e) {}", [true, true]);
1.57 +test("function f() { try { throw new Error(); } catch (e) { throw e; } } f();", [true, false, false]);
1.58 +test("function f() { try { try { throw new Error(); } catch (e) { throw e; } } catch (e) {} } f();", [true, true]);
1.59 +test("function f() { try { try { throw new Error(); } finally {} } catch (e) {} } f();", [true, true]);
1.60 +test("eval('try { throw new Error(); } catch (e) { throw e; }')", [true, false, false]);
1.61 +test("eval('try { try { throw new Error(); } catch (e) { throw e; } } catch (e) {}')", [true, true]);
1.62 +
1.63 +// Should correctly detect catch blocks across frame boundaries
1.64 +test("function f() { throw new Error(); } try { f(); } catch (e) {}", [true, true]);
1.65 +test("function f() { throw new Error(); } try { f(); } catch (e) { throw e; }", [true, true, false]);
1.66 +test("try { eval('throw new Error()'); } catch (e) {}", [true, true]);
1.67 +test("try { eval('throw new Error()'); } catch (e) { throw e; }", [true, true, false]);
1.68 +
1.69 +// Should correctly detect catch blocks just before and just after throws
1.70 +test("throw new Error; try {} catch (e) {}", [false]);
1.71 +test("try {} catch (e) {} throw new Error();", [false]);
