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/* -*- indent-tabs-mode: nil; js-indent-level: 2; js-indent-level: 2 -*- */
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
/* 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/. */
"use strict";
const { ActorPool } = require("devtools/server/actors/common");
const { createValueGrip } = require("devtools/server/actors/object");
const { ActorClassWithSpec } = require("devtools/shared/protocol");
const { frameSpec } = require("devtools/shared/specs/frame");
/**
* An actor for a specified stack frame.
*/
let FrameActor = ActorClassWithSpec(frameSpec, {
/**
* Creates the Frame actor.
*
* @param frame Debugger.Frame
* The debuggee frame.
* @param threadActor ThreadActor
* The parent thread actor for this frame.
*/
initialize: function (frame, threadActor) {
this.frame = frame;
this.threadActor = threadActor;
},
/**
* A pool that contains frame-lifetime objects, like the environment.
*/
_frameLifetimePool: null,
get frameLifetimePool() {
if (!this._frameLifetimePool) {
this._frameLifetimePool = new ActorPool(this.conn);
this.conn.addActorPool(this._frameLifetimePool);
}
return this._frameLifetimePool;
},
/**
* Finalization handler that is called when the actor is being evicted from
* the pool.
*/
disconnect: function () {
this.conn.removeActorPool(this._frameLifetimePool);
this._frameLifetimePool = null;
},
/**
* Returns a frame form for use in a protocol message.
*/
form: function () {
let threadActor = this.threadActor;
let form = { actor: this.actorID,
type: this.frame.type };
if (this.frame.type === "call") {
form.callee = createValueGrip(this.frame.callee, threadActor._pausePool,
threadActor.objectGrip);
}
if (this.frame.environment) {
let envActor = threadActor.createEnvironmentActor(
this.frame.environment,
this.frameLifetimePool
);
form.environment = envActor.form();
}
form.this = createValueGrip(this.frame.this, threadActor._pausePool,
threadActor.objectGrip);
form.arguments = this._args();
if (this.frame.script) {
var generatedLocation = this.threadActor.sources.getFrameLocation(this.frame);
form.where = {
source: generatedLocation.generatedSourceActor.form(),
line: generatedLocation.generatedLine,
column: generatedLocation.generatedColumn
};
}
if (!this.frame.older) {
form.oldest = true;
}
return form;
},
_args: function () {
if (!this.frame.arguments) {
return [];
}
return this.frame.arguments.map(arg => createValueGrip(arg,
this.threadActor._pausePool, this.threadActor.objectGrip));
}
});
exports.FrameActor = FrameActor;
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