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v8/test/inspector/debugger/stepping-with-natives-and-frameworks-expected.txt

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[debugger] tuned StepNext and StepOut at return position Proposed behaviour: - StepNext at return position go into next function call (no changes with current behavior, but implemented in v8::Debug instead of hack on inspector side); - StepOut at return position go into next non-current function call. We need this to have better stepping in cases with native functions, blackboxed functions and/or different embedder calls (e.g. event listeners). New behavior could be illustrated with two examples (for more see stepping-with-natives-and-frameworks test): - let's assume that we've blackboxed callAll function, this function just takes its arguments and call one after another: var foo = () => 1; callAll(foo, foo, () => 2); If we break inside of first call of function foo. Then on.. ..StepNext - we're able to reach second call of function foo, ..StepOut - we're able to reach () => 2 call. - let's consider case with native function: [1,2,3].map(x => x * 2) If we break inside of first callback call, then with StepNext we can iterate through all calls of callback, with StepOut we go to next statement after .map call. Implementation details: - when we request break we schedule step-in function call for any step action at return position and for step-in at any position, - when we request StepOut at return position - we mark current function as needed-to-be-ignored inside of PrepareStepIn(function) call, - when we request StepOut at not return position - we set break at return position and ask debugger to just repeat last step action on next stepping-related break. Design doc: https://docs.google.com/document/d/1ihXHOIhP_q-fJCA0e2EiXz_Zr3B08KMjaPifcaqZ60Q/edit BUG=v8:6118,chromium:583193 R=dgozman@chromium.org,yangguo@chromium.org Review-Url: https://codereview.chromium.org/2758483002 Cr-Commit-Position: refs/heads/master@{#44028}
2017-03-22 14:16:18 +00:00
Stepping with natives and frameworks.
Running test: testNativeCodeStepOut
Debugger.pause called
#[1,2].map(v => v);
Debugger.stepInto called
[1,2].map(v => #v);
Debugger.stepOut called
[1,2].map(v => v)#;
Debugger.resume called
Running test: testNativeCodeStepOver
Debugger.pause called
#[1,2].map(v => v);
Debugger.stepInto called
[1,2].map(v => #v);
Debugger.stepOver called
[1,2].map(v => v#);
Debugger.stepOver called
[1,2].map(v => #v);
Debugger.stepOver called
[1,2].map(v => v#);
Debugger.stepOver called
[1,2].map(v => v)#;
Debugger.resume called
Running test: testNativeCodeStepInto
Debugger.pause called
#[1,2].map(v => v);
Debugger.stepInto called
[1,2].map(v => #v);
Debugger.stepInto called
[1,2].map(v => v#);
Debugger.stepInto called
[1,2].map(v => #v);
Debugger.stepInto called
[1,2].map(v => v#);
Debugger.stepInto called
[1,2].map(v => v)#;
Debugger.resume called
Running test: testFrameworkCodeStepInto
Debugger.pause called
#callAll(() => 1, () => 2);
Debugger.stepInto called
callAll(() => #1, () => 2);
Debugger.stepInto called
callAll(() => 1#, () => 2);
Debugger.stepInto called
callAll(() => 1, () => #2);
Debugger.stepInto called
callAll(() => 1, () => 2#);
Debugger.stepInto called
callAll(() => 1, () => 2)#;
Debugger.resume called
Running test: testFrameworkCodeStepOver
Debugger.pause called
#callAll(() => 1, () => 2);
Debugger.stepInto called
callAll(() => #1, () => 2);
Debugger.stepOver called
callAll(() => 1#, () => 2);
Debugger.stepOver called
callAll(() => 1, () => #2);
Debugger.stepOver called
callAll(() => 1, () => 2#);
Debugger.stepOver called
callAll(() => 1, () => 2)#;
Debugger.resume called
Running test: testFrameworkCodeStepOut
Debugger.pause called
#callAll(() => 1, () => 2);
Debugger.stepInto called
callAll(() => #1, () => 2);
Debugger.stepOut called
callAll(() => 1, () => #2);
Debugger.stepOut called
callAll(() => 1, () => 2)#;
Debugger.resume called
Running test: testFrameworkNextCallDeeperStepOut
Debugger.pause called
#callAll(() => 1, callAll.bind(null, () => 2));
Debugger.stepInto called
callAll(() => #1, callAll.bind(null, () => 2));
Debugger.stepOut called
callAll(() => 1, callAll.bind(null, () => #2));
Debugger.stepOut called
callAll(() => 1, callAll.bind(null, () => 2))#;
Debugger.resume called
Running test: testFrameworkNextCallDeeperStepOutSameFunction
Debugger.pause called
#callAll(foo, callAll.bind(null, foo));
Debugger.stepInto called
foo = () => #1
Debugger.stepOut called
callAll(foo, callAll.bind(null, foo))#;
Debugger.resume called
Running test: testFrameworkNextCallDeeperStepInto
Debugger.pause called
#callAll(() => 1, callAll.bind(null, () => 2));
Debugger.stepInto called
callAll(() => #1, callAll.bind(null, () => 2));
Debugger.stepOver called
callAll(() => 1#, callAll.bind(null, () => 2));
Debugger.stepOver called
callAll(() => 1, callAll.bind(null, () => #2));
Debugger.stepOver called
callAll(() => 1, callAll.bind(null, () => 2#));
Debugger.stepOver called
callAll(() => 1, callAll.bind(null, () => 2))#;
Debugger.resume called
Running test: testFrameworkNextCallDeeperStepOver
Debugger.pause called
#callAll(() => 1, callAll.bind(null, () => 2));
Debugger.stepInto called
callAll(() => #1, callAll.bind(null, () => 2));
Debugger.stepOver called
callAll(() => 1#, callAll.bind(null, () => 2));
Debugger.stepOver called
callAll(() => 1, callAll.bind(null, () => #2));
Debugger.stepOver called
callAll(() => 1, callAll.bind(null, () => 2#));
Debugger.stepOver called
callAll(() => 1, callAll.bind(null, () => 2))#;
Debugger.resume called
Running test: testFrameworkCurrentCallDeeperStepOut
Debugger.pause called
#callAll(callAll.bind(null, () => 1), () => 2);
Debugger.stepInto called
callAll(callAll.bind(null, () => #1), () => 2);
Debugger.stepOut called
callAll(callAll.bind(null, () => 1), () => #2);
Debugger.stepOut called
callAll(callAll.bind(null, () => 1), () => 2)#;
Debugger.resume called
Running test: testFrameworkCurrentCallDeeperStepOutSameFunction
Debugger.pause called
#callAll(callAll.bind(null, foo), foo);
Debugger.stepInto called
foo = () => #1
Debugger.stepOut called
callAll(callAll.bind(null, foo), foo)#;
Debugger.resume called
Running test: testFrameworkCurrentCallDeeperStepOver
Debugger.pause called
#callAll(callAll.bind(null, () => 1), () => 2);
Debugger.stepInto called
callAll(callAll.bind(null, () => #1), () => 2);
Debugger.stepOver called
callAll(callAll.bind(null, () => 1#), () => 2);
Debugger.stepOver called
callAll(callAll.bind(null, () => 1), () => #2);
Debugger.stepOver called
callAll(callAll.bind(null, () => 1), () => 2#);
Debugger.stepOver called
callAll(callAll.bind(null, () => 1), () => 2)#;
Debugger.resume called
Running test: testFrameworkCurrentCallDeeperStepInto
Debugger.pause called
#callAll(callAll.bind(null, () => 1), () => 2);
Debugger.stepInto called
callAll(callAll.bind(null, () => #1), () => 2);
Debugger.stepInto called
callAll(callAll.bind(null, () => 1#), () => 2);
Debugger.stepInto called
callAll(callAll.bind(null, () => 1), () => #2);
Debugger.stepInto called
callAll(callAll.bind(null, () => 1), () => 2#);
Debugger.stepInto called
callAll(callAll.bind(null, () => 1), () => 2)#;
Debugger.resume called
Running test: testFrameworkStepOverMixed
Debugger.pause called
#callAll(foo, foo, () => 2);
Debugger.stepInto called
foo = () => #1
Debugger.stepOver called
foo = () => 1#
Debugger.stepOver called
foo = () => #1
Debugger.stepOver called
foo = () => 1#
Debugger.stepOver called
callAll(foo, foo, () => #2);
Debugger.stepOver called
callAll(foo, foo, () => 2#);
Debugger.stepOver called
callAll(foo, foo, () => 2)#;
Debugger.resume called
Running test: testFrameworkStepOutMixed
Debugger.pause called
#callAll(foo, foo, () => 2);
Debugger.stepInto called
foo = () => #1
Debugger.stepOut called
callAll(foo, foo, () => #2);
Debugger.stepOut called
callAll(foo, foo, () => 2)#;
Debugger.resume called
Running test: testStepOutFrameworkSameFunctionAtReturn
Debugger.pause called
#callAll(foo, foo, () => 2);
Debugger.stepInto called
foo = () => #1
Debugger.stepOver called
foo = () => 1#
Debugger.stepOut called
callAll(foo, foo, () => #2);
Debugger.stepOut called
callAll(foo, foo, () => 2)#;
Debugger.resume called
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