js/src/jit-test/tests/debug/Environment-variables.js@b8a032363ba2 (annotated)
js/src/jit-test/tests/debug/Environment-variables.js
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | // Comprehensive test of get/setVariable on many kinds of environments and |
| michael@0 | 2 | // bindings. |
| michael@0 | 3 | |
| michael@0 | 4 | load(libdir + "asserts.js"); |
| michael@0 | 5 | |
| michael@0 | 6 | var cases = [ |
| michael@0 | 7 | // global bindings and bindings on the global prototype chain |
| michael@0 | 8 | "x = VAL; @@", |
| michael@0 | 9 | "var x = VAL; @@", |
| michael@0 | 10 | "Object.prototype.x = VAL; @@", |
| michael@0 | 11 | |
| michael@0 | 12 | // let, catch, and comprehension bindings |
| michael@0 | 13 | "let x = VAL; @@", |
| michael@0 | 14 | "{ let x = VAL; @@ }", |
| michael@0 | 15 | "let (x = VAL) { @@ }", |
| michael@0 | 16 | "try { throw VAL; } catch (x) { @@ }", |
| michael@0 | 17 | "try { throw VAL; } catch (x) { @@ }", |
| michael@0 | 18 | "for (let x of [VAL]) { @@ }", |
| michael@0 | 19 | "for each (let x in [VAL]) { @@ }", |
| michael@0 | 20 | "switch (0) { default: let x = VAL; @@ }", |
| michael@0 | 21 | "[function () { @@ }() for (x of [VAL])];", |
| michael@0 | 22 | // "((function () { @@ })() for (x of [VAL])).next();", // bug 709367 |
| michael@0 | 23 | |
| michael@0 | 24 | // arguments |
| michael@0 | 25 | "function f(x) { @@ } f(VAL);", |
| michael@0 | 26 | "function f([w, x]) { @@ } f([0, VAL]);", |
| michael@0 | 27 | "function f({v: x}) { @@ } f({v: VAL});", |
| michael@0 | 28 | "function f([w, {v: x}]) { @@ } f([0, {v: VAL}]);", |
| michael@0 | 29 | |
| michael@0 | 30 | // bindings in functions |
| michael@0 | 31 | "function f() { var x = VAL; @@ } f();", |
| michael@0 | 32 | "function f() { let x = VAL; @@ } f();", |
| michael@0 | 33 | "function f([x]) { let x = VAL; @@ } f(['fail']);", |
| michael@0 | 34 | "function f(x) { { let x = VAL; @@ } } f('fail');", |
| michael@0 | 35 | "function f() { function x() {} x = VAL; @@ } f();", |
| michael@0 | 36 | |
| michael@0 | 37 | // dynamic bindings |
| michael@0 | 38 | "function f(s) { eval(s); @@ } f('var x = VAL');", |
| michael@0 | 39 | "function f(s) { let (x = 'fail') { eval(s); } x = VAL; @@ } f('var x;');", |
| michael@0 | 40 | "var x = VAL; function f(s) { eval('var x = 0;'); eval(s); @@ } f('delete x;');", |
| michael@0 | 41 | "function f(obj) { with (obj) { @@ } } f({x: VAL});", |
| michael@0 | 42 | "function f(obj) { with (obj) { @@ } } f(Object.create({x: VAL}));", |
| michael@0 | 43 | "function f(b) { if (b) { function x(){} } x = VAL; @@ } f(1);", |
| michael@0 | 44 | ]; |
| michael@0 | 45 | |
| michael@0 | 46 | var nextval = 1000; |
| michael@0 | 47 | |
| michael@0 | 48 | function test(code, debugStmts, followupStmts) { |
| michael@0 | 49 | var val = nextval++; |
| michael@0 | 50 | var hits = 0; |
| michael@0 | 51 | |
| michael@0 | 52 | var g = newGlobal(); |
| michael@0 | 53 | g.eval("function debugMe() { var x = 'wrong-x'; debugger; }"); |
| michael@0 | 54 | g.capture = null; |
| michael@0 | 55 | |
| michael@0 | 56 | var dbg = Debugger(g); |
| michael@0 | 57 | dbg.onDebuggerStatement = function (frame) { |
| michael@0 | 58 | if (frame.callee !== null && frame.callee.name == 'debugMe') |
| michael@0 | 59 | frame = frame.older; |
| michael@0 | 60 | var env = frame.environment.find("x"); |
| michael@0 | 61 | assertEq(env.getVariable("x"), val) |
| michael@0 | 62 | assertEq(env.setVariable("x", 'ok'), undefined); |
| michael@0 | 63 | assertEq(env.getVariable("x"), 'ok'); |
| michael@0 | 64 | |
| michael@0 | 65 | // setVariable cannot create new variables. |
| michael@0 | 66 | assertThrowsInstanceOf(function () { env.setVariable("newVar", 0); }, TypeError); |
| michael@0 | 67 | hits++; |
| michael@0 | 68 | }; |
| michael@0 | 69 | |
| michael@0 | 70 | code = code.replace("@@", debugStmts); |
| michael@0 | 71 | if (followupStmts !== undefined) |
| michael@0 | 72 | code += " " + followupStmts; |
| michael@0 | 73 | code = code.replace(/VAL/g, uneval(val)); |
| michael@0 | 74 | g.eval(code); |
| michael@0 | 75 | assertEq(hits, 1); |
| michael@0 | 76 | } |
| michael@0 | 77 | |
| michael@0 | 78 | for (var s of cases) { |
| michael@0 | 79 | // Test triggering the debugger right in the scope in which x is bound. |
| michael@0 | 80 | test(s, "debugger; assertEq(x, 'ok');"); |
| michael@0 | 81 | |
| michael@0 | 82 | // Test calling a function that triggers the debugger. |
| michael@0 | 83 | test(s, "debugMe(); assertEq(x, 'ok');"); |
| michael@0 | 84 | |
| michael@0 | 85 | // Test triggering the debugger from a scope nested in x's scope. |
| michael@0 | 86 | test(s, "let (y = 'irrelevant') { (function (z) { let (zz = y) { debugger; }})(); } assertEq(x, 'ok');"), |
| michael@0 | 87 | |
| michael@0 | 88 | // Test closing over the variable and triggering the debugger later, after |
| michael@0 | 89 | // leaving the variable's scope. |
| michael@0 | 90 | test(s, "capture = {dbg: function () { debugger; }, get x() { return x; }};", |
| michael@0 | 91 | "assertEq(capture.x, VAL); capture.dbg(); assertEq(capture.x, 'ok');"); |
| michael@0 | 92 | } |
