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Bug 813172 - Evaluating 'arguments' as a watch expression always yields an empty pseudo-array, r=rcampbell

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This commit is contained in:
Victor Porof 2012-11-21 10:49:45 +02:00
parent b73754b0b8
commit 4090a89591
3 changed files with 30 additions and 26 deletions
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7
browser/devtools/debugger/debugger-controller.js
View File

@ -924,10 +924,13 @@ StackFrames.prototype = {
if (list.length) {
this.syncedWatchExpressions =
this.currentWatchExpressions = "[" + list.map(function(str)
"(function() {" +
// Avoid yielding an empty pseudo-array when evaluating `arguments`,
// since they're overridden by the expression's closure scope.
"(function(arguments) {" +
// Make sure all the quotes are escaped in the expression's syntax.
"try { return eval(\"" + str.replace(/"/g, "\\$&") + "\"); }" +
"catch(e) { return e.name + ': ' + e.message; }" +
"})()"
"})(arguments)"
).join(",") + "]";
} else {
this.syncedWatchExpressions =

47
browser/devtools/debugger/test/browser_dbg_bug727429_watch-expressions-02.js
View File

@ -42,6 +42,7 @@ function test()
gWatch.addExpression("y = [1, 2, 3]; y.test = 4");
gWatch.addExpression("z = [1, 2, 3]; z.test = 4; z");
gWatch.addExpression("t = [1, 2, 3]; t.test = 4; !t");
gWatch.addExpression("arguments[0]");
gWatch.addExpression("encodeURI(\"\\\")");
gWatch.addExpression("decodeURI(\"\\\")");
}
@ -50,8 +51,8 @@ function test()
{
is(gWatch._container._parent.querySelectorAll(".dbg-expression[hidden=true]").length, 0,
"There should be 0 hidden nodes in the watch expressions container");
is(gWatch._container._parent.querySelectorAll(".dbg-expression:not([hidden=true])").length, 13,
"There should be 13 visible nodes in the watch expressions container");
is(gWatch._container._parent.querySelectorAll(".dbg-expression:not([hidden=true])").length, 14,
"There should be 14 visible nodes in the watch expressions container");
test1(function() {
test2(function() {
@ -78,8 +79,8 @@ function test()
{
is(gWatch._container._parent.querySelectorAll(".dbg-expression[hidden=true]").length, 0,
"There should be 0 hidden nodes in the watch expressions container");
is(gWatch._container._parent.querySelectorAll(".dbg-expression:not([hidden=true])").length, 12,
"There should be 12 visible nodes in the watch expressions container");
is(gWatch._container._parent.querySelectorAll(".dbg-expression:not([hidden=true])").length, 13,
"There should be 13 visible nodes in the watch expressions container");
closeDebuggerAndFinish();
}
@ -87,7 +88,7 @@ function test()
function test1(callback) {
waitForWatchExpressions(function() {
info("Performing test1");
checkWatchExpressions("ReferenceError: a is not defined");
checkWatchExpressions("ReferenceError: a is not defined", undefined);
callback();
});
executeSoon(function() {
@ -98,7 +99,7 @@ function test()
function test2(callback) {
waitForWatchExpressions(function() {
info("Performing test2");
checkWatchExpressions(undefined);
checkWatchExpressions(undefined, "sensational");
callback();
});
EventUtils.sendMouseEvent({ type: "mousedown" },
@ -109,7 +110,7 @@ function test()
function test3(callback) {
waitForWatchExpressions(function() {
info("Performing test3");
checkWatchExpressions({ type: "object", class: "Object" });
checkWatchExpressions({ type: "object", class: "Object" }, "sensational");
callback();
});
EventUtils.sendMouseEvent({ type: "mousedown" },
@ -120,7 +121,7 @@ function test()
function test4(callback) {
waitForWatchExpressions(function() {
info("Performing test4");
checkWatchExpressions(5, 12);
checkWatchExpressions(5, "sensational", 13);
callback();
});
executeSoon(function() {
@ -132,7 +133,7 @@ function test()
function test5(callback) {
waitForWatchExpressions(function() {
info("Performing test5");
checkWatchExpressions(5, 12);
checkWatchExpressions(5, "sensational", 13);
callback();
});
executeSoon(function() {
@ -144,7 +145,7 @@ function test()
function test6(callback) {
waitForWatchExpressions(function() {
info("Performing test6");
checkWatchExpressions(5, 12);
checkWatchExpressions(5, "sensational", 13);
callback();
})
executeSoon(function() {
@ -156,7 +157,7 @@ function test()
function test7(callback) {
waitForWatchExpressions(function() {
info("Performing test7");
checkWatchExpressions(5, 12);
checkWatchExpressions(5, "sensational", 13);
callback();
});
executeSoon(function() {
@ -168,7 +169,7 @@ function test()
function test8(callback) {
waitForWatchExpressions(function() {
info("Performing test8");
checkWatchExpressions(5, 12);
checkWatchExpressions(5, "sensational", 13);
callback();
});
executeSoon(function() {
@ -201,7 +202,7 @@ function test()
}, false);
}
function checkWatchExpressions(expected, total = 11) {
function checkWatchExpressions(expected_a, expected_arguments, total = 12) {
is(gWatch._container._parent.querySelectorAll(".dbg-expression[hidden=true]").length, total,
"There should be " + total + " hidden nodes in the watch expressions container");
is(gWatch._container._parent.querySelectorAll(".dbg-expression:not([hidden=true])").length, 0,
@ -223,8 +224,9 @@ function test()
let w8 = scope.get("y = [1, 2, 3]; y.test = 4");
let w9 = scope.get("z = [1, 2, 3]; z.test = 4; z");
let w10 = scope.get("t = [1, 2, 3]; t.test = 4; !t");
let w11 = scope.get("encodeURI(\"\\\")");
let w12 = scope.get("decodeURI(\"\\\")");
let w11 = scope.get("arguments[0]");
let w12 = scope.get("encodeURI(\"\\\")");
let w13 = scope.get("decodeURI(\"\\\")");
ok(w1, "The first watch expression should be present in the scope");
ok(w2, "The second watch expression should be present in the scope");
@ -236,8 +238,9 @@ function test()
ok(w8, "The eight watch expression should be present in the scope");
ok(w9, "The ninth watch expression should be present in the scope");
ok(w10, "The tenth watch expression should be present in the scope");
ok(!w11, "The eleventh watch expression should not be present in the scope");
ok(w11, "The eleventh watch expression should be present in the scope");
ok(!w12, "The twelveth watch expression should not be present in the scope");
ok(!w13, "The thirteenth watch expression should not be present in the scope");
is(w1.value, "a", "The first value is correct");
is(w2.value, "a", "The second value is correct");
@ -245,22 +248,20 @@ function test()
is(w4.value, "a''", "The fourth value is correct");
is(w5.value, "SyntaxError: syntax error", "The fifth value is correct");
if (typeof expected == "object") {
is(w6.value.type, expected.type, "The sixth value type is correct");
is(w6.value.class, expected.class, "The sixth value class is correct");
if (typeof expected_a == "object") {
is(w6.value.type, expected_a.type, "The sixth value type is correct");
is(w6.value.class, expected_a.class, "The sixth value class is correct");
} else {
is(w6.value, expected, "The sixth value is correct");
is(w6.value, expected_a, "The sixth value is correct");
}
is(w7.value.type, "object", "The seventh value type is correct");
is(w7.value.class, "Array", "The seventh value class is correct");
is(w8.value, "4", "The eight value is correct");
is(w9.value.type, "object", "The ninth value type is correct");
is(w9.value.class, "Array", "The ninth value class is correct");
is(w10.value, false, "The tenth value is correct");
is(w11.value, expected_arguments, "The eleventh value is correct");
}
registerCleanupFunction(function() {

2
browser/devtools/debugger/test/browser_dbg_watch-expressions.html
View File

@ -13,7 +13,7 @@
debugger;
var a = {};
debugger;
}());
}("sensational"));
}
</script>
</head>