Debugger-adoptFrame.js

Enable keyboard shortcuts

// validate the common behavior of of Debugger.adoptFrame

load(libdir + "asserts.js");

const g = newGlobal({ newCompartment: true });

const dbg1 = new Debugger();

const gDO1 = dbg1.addDebuggee(g);

let suspendedFrame;

dbg1.onDebuggerStatement = function() {

  // Test working with an onStack frame.

  const frame1 = dbg1.getNewestFrame();

  const dbg = new Debugger();

  assertErrorMessage(

    () => dbg.adoptFrame(frame1),

    Error,

    "Debugger.Frame's global is not a debuggee"

);

  dbg.addDebuggee(g);

  const frame2 = dbg.adoptFrame(frame1);

  assertMatchingFrame(frame1, frame2);

  suspendedFrame = frame1;

};

const generator = g.eval(`

function* fn() {

  debugger;

  yield;

fn();

`);

generator.next();

(function() {

  // Test working with a suspended generator frame.

  const dbg = new Debugger();

  assertErrorMessage(

    () => dbg.adoptFrame(suspendedFrame),

    Error,

    "Debugger.Frame's global is not a debuggee"

);

  dbg.addDebuggee(g);

  const frame2 = dbg.adoptFrame(suspendedFrame);

  assertMatchingFrame(frame2, suspendedFrame);

})();

generator.next();

const deadFrame = suspendedFrame;

(function() {

  // Test working with a dead frame.

  const dbg = new Debugger();

  // This doesn't throw because the dead frame doesn't have any

  // debuggee-specific data associated with it anymore.

  dbg.adoptFrame(deadFrame);

  dbg.addDebuggee(g);

  const frame2 = dbg.adoptFrame(deadFrame);

  assertMatchingFrame(frame2, deadFrame);

})();

function assertMatchingFrame(frame1, frame2) {

  assertEq(frame2.onStack, frame1.onStack);

  assertEq(frame2.terminated, frame1.terminated);

  if (!frame2.terminated) {

    assertEq(frame2.type, frame1.type);

    assertEq(frame2.offset, frame1.offset);