зеркало из https://github.com/mozilla/gecko-dev.git
93 строки
3.9 KiB
JavaScript
93 строки
3.9 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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const { MemoryFront } = require("devtools/server/actors/memory");
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const HeapAnalysesClient = require("devtools/shared/heapsnapshot/HeapAnalysesClient");
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const { PropTypes } = require("devtools/client/shared/vendor/react");
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const { snapshotState: states } = require("./constants");
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/**
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* The breakdown object DSL describing how we want
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* the census data to be.
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* @see `js/src/doc/Debugger/Debugger.Memory.md`
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*/
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let breakdownModel = exports.breakdown = PropTypes.shape({
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by: PropTypes.oneOf(["coarseType", "allocationStack", "objectClass", "internalType"]).isRequired,
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});
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/**
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* Snapshot model.
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*/
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let stateKeys = Object.keys(states).map(state => states[state]);
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let snapshotModel = exports.snapshot = PropTypes.shape({
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// Unique ID for a snapshot
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id: PropTypes.number.isRequired,
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// Whether or not this snapshot is currently selected.
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selected: PropTypes.bool.isRequired,
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// Filesystem path to where the snapshot is stored; used to identify the
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// snapshot for HeapAnalysesClient.
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path: PropTypes.string,
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// The current census report data.
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census: PropTypes.object,
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// The breakdown used to generate the current census
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breakdown: breakdownModel,
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// Whether the currently cached census tree is inverted or not.
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inverted: PropTypes.bool,
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// If present, the currently cached census's filter string used for pruning
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// the tree items.
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filter: PropTypes.string,
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// If an error was thrown while processing this snapshot, the `Error` instance is attached here.
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error: PropTypes.object,
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// The creation time of the snapshot; required after the snapshot has been read.
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creationTime: PropTypes.number,
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// The current state the snapshot is in.
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// @see ./constants.js
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state: function (snapshot, propName) {
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let current = snapshot.state;
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let shouldHavePath = [states.SAVED, states.READ, states.SAVING_CENSUS, states.SAVED_CENSUS];
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let shouldHaveCreationTime = [states.READ, states.SAVING_CENSUS, states.SAVED_CENSUS];
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let shouldHaveCensus = [states.SAVED_CENSUS];
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if (!stateKeys.includes(current)) {
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throw new Error(`Snapshot state must be one of ${stateKeys}.`);
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}
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if (shouldHavePath.includes(current) && !snapshot.path) {
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throw new Error(`Snapshots in state ${current} must have a snapshot path.`);
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}
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if (shouldHaveCensus.includes(current) && (!snapshot.census || !snapshot.breakdown)) {
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throw new Error(`Snapshots in state ${current} must have a census and breakdown.`);
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}
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if (shouldHaveCreationTime.includes(current) && !snapshot.creationTime) {
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throw new Error(`Snapshots in state ${current} must have a creation time.`);
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}
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},
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});
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let allocationsModel = exports.allocations = PropTypes.shape({
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// True iff we are recording allocation stacks right now.
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recording: PropTypes.bool.isRequired,
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// True iff we are in the process of toggling the recording of allocation
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// stacks on or off right now.
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togglingInProgress: PropTypes.bool.isRequired,
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});
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let appModel = exports.app = {
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// {MemoryFront} Used to communicate with platform
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front: PropTypes.instanceOf(MemoryFront),
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// Allocations recording related data.
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allocations: allocationsModel.isRequired,
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// {HeapAnalysesClient} Used to interface with snapshots
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heapWorker: PropTypes.instanceOf(HeapAnalysesClient),
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// The breakdown object DSL describing how we want
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// the census data to be.
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// @see `js/src/doc/Debugger/Debugger.Memory.md`
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breakdown: breakdownModel.isRequired,
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// List of reference to all snapshots taken
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snapshots: PropTypes.arrayOf(snapshotModel).isRequired,
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// True iff we want the tree displayed inverted.
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inverted: PropTypes.bool.isRequired,
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// If present, a filter string for pruning the tree items.
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filter: PropTypes.string,
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};
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