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// Changing onStep while the generator is suspended/dead is allowed.
load(libdir + "asserts.js");
const g = newGlobal({ newCompartment: true });
const dbg = new Debugger(g);
let steps = new Set();
dbg.onDebuggerStatement = function(frame) {
// Setting 'onStep' while alive is allowed.
steps.add("debugger 1");
assertEq(frame.onStack, true);
frame.onStep = function() {
steps.add("onstep 1");
};
dbg.onDebuggerStatement = function() {
// Clear the 'onStep' while suspended.
steps.add("debugger 2");
assertEq(frame.onStack, false);
// Clearing 'onStep' while suspended is allowed.
frame.onStep = undefined;
// Setting 'onStep' while suspended is allowed.
frame.onStep = function() {
steps.add("onstep 2");
};
dbg.onDebuggerStatement = function() {
steps.add("debugger 3");
assertEq(frame.onStack, false);
// Clearing 'onStep' while dead is allowed.
frame.onStep = undefined;
// Setting 'onStep' while dead is allowed.
frame.onStep = function() {
steps.add("onstep 3");
};
};
};
};
g.eval(
`
function* myGen() {
debugger;
yield;
}
const g = myGen();
g.next();
debugger;
g.next();
debugger;
`
);
assertDeepEq(Array.from(steps), [
"debugger 1",
"onstep 1",
"debugger 2",
"onstep 2",
"debugger 3",
]);