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Alex Rickabaugh
f56b6555bd
This commit switches the signals library from a bidirectional symmetric dependency graph using weak references, to a bidirectional _asymmetric_ graph which uses strong references. This is made possible with a reference counting algorithm which only tracks producer -> consumer references for effect-like "live" consumers, preventing memory leaks. The new algorithm should be simpler and faster than the previous implementation as weak references are fairly slow to create and traverse. A tradeoff is that non-live consumers must now poll their producers when read, as they cannot rely on dirty notifications. As part of this refactoring, the `ReactiveNode` class is replaced with an interface instead, and methods are moved to standalone functions. This is paired with instantiating individual signals/computeds via `Object.create` against a prototype node which contains static or initial values. This technique, in conjunction with the rest, greatly improves the performance of node creation. PR Close #51226
public-api/
This directory contains all of the public api goldens for our npm packages we publish to NPM. These are tested on all PRs and commits as part of our bazel tests.
To check or update the public api goldens, run one of the following commands:
yarn public-api:check
yarn public-api:update
packages-circular-deps.json
This golden file contains a list of all circular dependencies in the project. As part of the lint CI job we compare the current circular dependencies against this golden to ensure that we don't add more cycles. If cycles have been fixed, this file is also updated so that we can slowly burn down the number of cycles in the project.
To check or update the golden, run the following commands:
yarn ts-circular-deps:check
yarn ts-circular-deps:approve