Allow props to take a JSX literal value

[felipeochoa]

Also per the spec on the repo, apparently props can be assigned literal JSX elements directly

JSXAttributeInitializer :


• = JSXAttributeValue

JSXAttributeValue :


• " JSXDoubleStringCharacters_opt "
• ' JSXSingleStringCharacters_opt '
• { AssignmentExpression }
• JSXElement

[wyuenho]

This isn't hard at all, the hardest part is to not mess up indentation even more than it is now. js-mode's indent-line-function is just superbly stupid even in Emacs 26.

It'll probably make more sense to reimplement indent-line-function first.

[wyuenho]

Oh well, no need to hurry tho, not until Babel 7 is released anyway, whenever that maybe.

[wyuenho]

It's released! https://babeljs.io/blog/2018/08/27/7.0.0

[felipeochoa]

PRs welcome :) I think it's an easy fix on the parsing side, we just need some tests here. On the indentation side, I'd have to check, but I think there's an assumption that if a node and its parent are both rjsx-nodes, then it's a nested relationship rather than a tag-attribute relationship. If only I'd added an rjsx-tag node to the parse tree...