Aside from the benefits that PureComponent would bring us, this will move us much closer to being able to use React 16, which brings large performance gains (it renders 30% - 300% faster).

Folders containing old style components: - devtools/client/aboutdebugging/components/tabs/ - devtools/client/aboutdebugging/components/ - devtools/client/aboutdebugging/components/addons/ - devtools/client/aboutdebugging/components/workers/ - devtools/client/memory/components/ - devtools/client/memory/ - devtools/client/framework/components/ - devtools/client/shared/components/ - devtools/client/shared/components/tabs/ - devtools/client/shared/components/tree/ - devtools/client/shared/components/test/mochitest/ - devtools/client/shared/components/splitter/ - devtools/client/shared/components/reps/ - devtools/client/dom/content/components/ - devtools/client/performance/components/ - devtools/client/jsonview/components/ - devtools/client/jsonview/components/reps/ - devtools/client/responsive.html/components/ - devtools/client/responsive.html/ - devtools/client/inspector/test/browser_inspector_addSidebarTab.js - devtools/client/debugger/new/debugger.js Github repos that still contain old components (or references to those components): - https://github.com/devtools-html/debugger.html - https://github.com/devtools-html/devtools-core

Current Peers for review: about:debugging: jdescottes, ochameau Animation Inspector: gl, pbro, daisuke Canvas Debugger: <unmaintained> Console: bgrins, nchevobbe Debugger: jlast Developer Toolbar: jwalker, mikeratcliffe DOM: honza Framework: Browser integration, toolbox and test infrastructure: jryans, bgrins, ochameau, honza Inspector: gl, pbro, zer0, jdescottes, tromey JSON Viewer: honza Memory: gregtatum Network Monitor: honza, rickychien, gasolin Performance: gregtatum Remote protocol and server infrastructure: jryans, ochameau Responsive Design Mode: jryans, zer0 Scratchpad: jdescottes Shader Editor: <unmaintained> Style Editor: gl Storage Inspector: mikeratcliffe Themes: bgrins, ntim Web Audio Editor: <unmaintained> WebIDE: jryans, ochameau

getInitialState() is not allowed in ES6 React Components and if it is called explicitly from another method the conversion will fail. It is simple to workaround but for the sake of consistency I think this is our best option: ``` constructor(props) { super(props); this.state = this.initialState; } get initialState() { return { workers: { service: [], shared: [], other: [] }, processCount: 1, }; } someOtherMethod() { let workers = this.initialState.workers; ... } ```

All dependencies satisfied.

where are the commits for this bug?

(In reply to Jens Hausdorf from comment #5) > where are the commits for this bug? Meta bugs are for tracking other bugs but the do not contain any commits.