wg-runtime Status Update 2020-04-13

[jridgewell]

Recap

• Justin

  • TC39

  • Reviewed with Babel minifier transforms

  • Fixing sourcemaps (again)

  • Opened PR to delay constructing BaseElement construct until connectedCallback

• Jake

  • optimization: removed remeasure from toggleLoading (gh/27482)

  • refactor: slightly cleaned up toggleLoading flow (gh/27527)

  • more toggleLoading changes in-flight

• Will

  • IntersectionObserver testing & edge cases

  • Other stuff


Learned

• Justin needs to get a new computer


Next

• Justin

  • Land delaying BaseElement construction to connectedCallback

  • Make connectedCallback less expensive 

• Jake

  • Complete inflight changes to toggleLoading

  • Create unit tests for loader.js and amp-loader.js

  • Protocol adapters

  • Performance

    • Skip amp-bind tree walking

    • Reduce cost of reparenting

    • Prioritize layout of in-viewport elements

• Will

  • Finish testing & enable IntersectionObserver in canary