mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-30 16:22:00 +00:00
86 lines
2.9 KiB
JavaScript
86 lines
2.9 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
this.EXPORTED_SYMBOLS = [ "addDebuggerToGlobal" ];
|
|
|
|
/*
|
|
* This is the js module for Debugger. Import it like so:
|
|
* Components.utils.import("resource://gre/modules/jsdebugger.jsm");
|
|
* addDebuggerToGlobal(this);
|
|
*
|
|
* This will create a 'Debugger' object, which provides an interface to debug
|
|
* JavaScript code running in other compartments in the same process, on the
|
|
* same thread.
|
|
*
|
|
* For documentation on the API, see:
|
|
* https://developer.mozilla.org/en-US/docs/Tools/Debugger-API
|
|
*/
|
|
|
|
const init = Components.classes["@mozilla.org/jsdebugger;1"].createInstance(Components.interfaces.IJSDebugger);
|
|
this.addDebuggerToGlobal = function addDebuggerToGlobal(global) {
|
|
init.addClass(global);
|
|
initPromiseDebugging(global);
|
|
};
|
|
|
|
function initPromiseDebugging(global) {
|
|
if (global.Debugger.Object.prototype.PromiseDebugging) {
|
|
return;
|
|
}
|
|
|
|
// If the PromiseDebugging object doesn't have all legacy functions, we're
|
|
// using the new accessors on Debugger.Object already.
|
|
if (!PromiseDebugging.getDependentPromises) {
|
|
return;
|
|
}
|
|
|
|
// Otherwise, polyfill them using PromiseDebugging.
|
|
global.Debugger.Object.prototype.PromiseDebugging = PromiseDebugging;
|
|
global.eval(polyfillSource);
|
|
}
|
|
|
|
let polyfillSource = `
|
|
Object.defineProperty(Debugger.Object.prototype, "promiseState", {
|
|
get() {
|
|
const state = this.PromiseDebugging.getState(this.unsafeDereference());
|
|
return {
|
|
state: state.state,
|
|
value: this.makeDebuggeeValue(state.value),
|
|
reason: this.makeDebuggeeValue(state.reason)
|
|
};
|
|
}
|
|
});
|
|
Object.defineProperty(Debugger.Object.prototype, "promiseLifetime", {
|
|
get() {
|
|
return this.PromiseDebugging.getPromiseLifetime(this.unsafeDereference());
|
|
}
|
|
});
|
|
Object.defineProperty(Debugger.Object.prototype, "promiseTimeToResolution", {
|
|
get() {
|
|
return this.PromiseDebugging.getTimeToSettle(this.unsafeDereference());
|
|
}
|
|
});
|
|
Object.defineProperty(Debugger.Object.prototype, "promiseDependentPromises", {
|
|
get() {
|
|
let promises = this.PromiseDebugging.getDependentPromises(this.unsafeDereference());
|
|
return promises.map(p => this.makeDebuggeeValue(p));
|
|
}
|
|
});
|
|
Object.defineProperty(Debugger.Object.prototype, "promiseAllocationSite", {
|
|
get() {
|
|
return this.PromiseDebugging.getAllocationStack(this.unsafeDereference());
|
|
}
|
|
});
|
|
Object.defineProperty(Debugger.Object.prototype, "promiseResolutionSite", {
|
|
get() {
|
|
let state = this.promiseState.state;
|
|
if (state === "fulfilled") {
|
|
return this.PromiseDebugging.getFullfillmentStack(this.unsafeDereference());
|
|
} else {
|
|
return this.PromiseDebugging.getRejectionStack(this.unsafeDereference());
|
|
}
|
|
}
|
|
});
|
|
`;
|