Render/as-element and other functions now take additional parameter for
setting options.
Currently only option is :functional-reag-elements?,
if set to true, by default Reagent components are
created as Functions, which behave similarly to Classes,
but allow using Hooks.
- Completely remove component-path function
- Remove component stack information from error messages
- Test that component stack information is availble using Error Boundary
Previous change (35ff5d33dd) started using ComponentDidMount to keep
track of component mount order. This affected the order in which this
was called, previously ComponentWillMount was called the first for
parent components and then for children. ComponentDidMount was called
first for children etc. To work around this, the mount order was
reversed when updating components after ratom updates.
Problem with this is, that when only some components are rerendered,
they get new numbers, but their parents don't:
(given components c, b, a)
**0.8.1**
c 1 > b 2 > a 3
a rerendered
c 1 > b 2 > a 4
b rerendered
c 1 > b 5 > a 6
**35ff5d33dd**
c 3 > b 2 > a 1
a rerendered
c 3 > b 2 > a 4 (BROKEN)
b rerendered
c 3 > b 6 > a 5 (BROKEN)
Best way to fix this is to revert back to old way, where parents get the
smaller number, this was re-rendering children doesn't change the order.
To implement this the mount-order can be stored in component
constructor, which seems to work similarly to ComponentWillMount.
> The constructor for a React component is called before it is mounted.
> UNSAFE_componentWillMount()... Generally, we recommend using the constructor() instead for initializing state.
- separate getInitialState and constructor, they work differently
- getDerivedStateFromProps and Error
- getSnapshotBeforeUpdate
- Improved docstring for create-class