Commit Graph

5 Commits

Author SHA1 Message Date
Joshua Gross 8ca18f0b60 Don't PreAllocate virtual views
Summary:
Virtual views that are flattened and don't "FormsView" on-screen should not be preallocated.

Changelog: [Internal]

Reviewed By: mdvacca

Differential Revision: D28811419

fbshipit-source-id: 949dcbf4cf3791355c58af785603b35fa50f3f02
2021-06-02 12:49:49 -07:00
Joshua Gross c22b874fd6 Differ: ensure ownership of all ShadowView/ShadowNode pairs, ensure consistency of nodes
Summary:
Previously, `ShadowViewNodePair::List` owned each `ShadowViewNodePair` but whenever we put `ShadowViewNodePair` into a TinyMap, those were unowned pointer references. This worked... 99% of the time. But in some marginal cases, it would cause dangling pointers, leading to difficult-to-track-down issues. So, I'm moving both of these to be unowned pointers and keeping a `std::deque` that owns all `ShadowViewNodePair`s and is itself owned by the main differ function. See comments for more implementation details. I'm moderately concerned about memory usage regressions, but practically speaking this will contain many items when a tree is created for the first time, and then very few items after that (space complexity should be similar to `O(n)` where `n` is the number of changed nodes after the last diff).

See comments as to why I believe `std::deque` is the right choice. Long-term there might be data-structures that are even more optimal, but std::deque has the right tradeoffs compared to other built-in STL structures like std::list and std::vector, and is probably better than std::forward_list too. Long-term we may want a custom data-structure that fits our needs exactly, but std::deque comes close and is possibly optimal.

Changelog: [Internal]

Reviewed By: sammy-SC

Differential Revision: D27730952

fbshipit-source-id: 2194b535439bd309803a221188da5db75242005a
2021-04-14 19:50:10 -07:00
Joshua Gross 88c3090066 Correct LayoutMetrics comparison and make debuggable
Summary:
Allow conversion of LayoutMetrics to DebuggableString.

We also skipped a field in comparison. It probably isn't impactful in terms of production issues, but still wasn't correct.

Changelog: [Internal]

Reviewed By: sammy-SC

Differential Revision: D27709451

fbshipit-source-id: 987fc2de0a4562a295d6cbeffdd922cbf056b811
2021-04-14 09:41:41 -07:00
Joshua Gross 82e9cb1b4e Add SurfaceId to ShadowView
Summary:
See title. Not used in this diff; see next diff in stack.

Changelog: [Internal]

Reviewed By: mdvacca

Differential Revision: D26001014

fbshipit-source-id: 475eb265f1c27bd9aff978a49652764a50287e47
2021-01-21 23:47:34 -08:00
David Vacca 3093010ea5 move fabric to ReactCommon/react/renderer
Summary:
This diff moves fabric C++ code from ReactCommon/fabric to ReactCommon/react/renderer
As part of this diff I also refactored components, codegen and callsites on CatalystApp, FB4A and venice

Script: P137350694

changelog: [internal] internal refactor

Reviewed By: fkgozali

Differential Revision: D22852139

fbshipit-source-id: f85310ba858b6afd81abfd9cbe6d70b28eca7415
2020-07-31 13:34:29 -07:00