wg-runtime Status Update 2020-09-28

[jridgewell]

What was accomplished

Lessons learned

What's next

[jridgewell]

What was accomplished

• Auto envelope PR opened
• Removed version-locking exp from prod
• Fixing closure typing issue with default assignment transform
• Banning implicit global this usage
• Fix auto-injected scripts to esm builds
• Attended TC39 at night (JST timezone)
  • String.dedent made stage 1!
• Progress on amp-img ssr transform
  • Adding CSI ability for SSR experiments. Being done on viewer-side, so only Google Viewer will pay for this cost
• Two days off to move

Lessons learned

• Moving is terrible

What's next

• Finish amp-img SSR
• Finish auto-envolope

[samouri]

What was accomplished

• worker-dom:
  • innerHTML entity decoding (decode numeric html entitites worker-dom#947, Decode HTML Reserved Characters (>,<,&,"). worker-dom#952)
  • fixed build configuration for debug builds: remove terser/closure from debug build worker-dom#943
• pixi
  • amp-script integration a11y issue: analyze button: dont attempt to validate on focus amp.dev#4526
  • moved (some) of the markdown conversion to the server: pixi: remove marked from client. transform in jinja amp.dev#4563
• bento styles:
  • further explorations into potential libraries other than JSS. most enticing alternative right now is goober. comparison doc is in progress.
  • unquote props / switch to enum: jss transform: use @enum instead of json.parse amphtml#30304, jss: fix potential issue with quotes amphtml#30396
• amphtml infra: --files glob fix for Windows: --files flag windows support amphtml#30222

Lessons learned

• closure compiler can be confusing. @enum doesn't always optimize in situations I'd expect. what I expected it to. It is sometimes important to use unquoted properties for variables.
• Double compiling using Closure can further optimize code (passing the output into the input of another compilation). We should investigate how impactful this could be for amp.

What's next

• Vacation / Yom Kippur!
• Researching large-scale Runtime refactoring / changes necessary for Bento.
• Researching which parts of Runtime are only applicable to Viewer to split them out