Compiler tasks

[rigor789]

Implement template compiler.

• transforms
  • transformStyle (color: red; -> `{ color: 'red' })
  • transformVText
  • transformModel
  • transformOn
  • transfromShow
  • transformHoist/stringifyStaic (look into what this is used for, and if we need it)
• tests
  • basic tests to ensure the compiler works (snapshot tests of a couple templates)
  • tests for each transform from above

[rigor789]

Ran into a slight block. In Vue 3 the compiler is much smarter about components/native elements. With the DOM we have the default set of html tags that doesn't really change (for vue-dom) but in ns we always have custom elements from plugins. This is not a problem at runtime, as the registerElement calls are already "called". But if we want to compile a template ahead of time (this is what webpack/vue-loader does), we don't know all the elements.

Providing the isCustomElement option to ParserOptions seems like a possible solution (exploring it right now).

Solved in alpha.10 and 49b6f93

[rigor789]

Waiting for vuejs/core@20f4965 to be released so we can un-comment the tests (they are passing with the above change).

done: 7261b16

[rigor789]

Adjust compiler options to use decodeEntities
Breaking change: vuejs/core@1f6e72b
Resolved by #14 (comment)

[msaelices]

Just for the record. The breaking change in the previous comment was fixed in this commit: 903fb22

The code is now working with vue-next 3.0.0-alpha.12