preact-signals

Minor Changes

• e5c15fa: SWC plugin: added transformHooks (default: true) option

  Hook is detected by RegEx that checks if function name starts with use

  It transforms:

  • every hook that reads .value (in 'auto' and 'all' modes)
  • every hook that has @useSignals comment (in 'manual' mode)

  If you want to opt out from the behavior - you can set transformHooks to false

Patch Changes

• 661a86e: babel plugin: removed unexpected logging

Patch Changes

• Updated dependencies [661a86e]
  • @preact-signals/[email protected]

Minor Changes

• dcd7e2c: Implemented experimental_stateMacrosOptimization for automatic optimization of state macroses in JSX

  Example:

  import { $state, $derived } from "@preact-signals/utils/macro";
  
  let a = $state(10);
  let b = $state(20);
  
  const c = <>{a * b + 10}</>;
  

  Will be optimized to:

  import { deepSignal as _deepSignal, $ as _$ } from "@preact-signals/utils";
  
  let a = _deepSignal(10);
  let b = _deepSignal(20);
  
  const c = <>{_$(() => a.value * b.value + 10)}</>;
  

  In result your components will have less rerender when using state bindings

• f706a6e: Removed experimental_ prefix from stateMacro options of @preact-signals/utils/babel

  Migration (Vite):

  import { defineConfig } from "vite";
  import react from "@vitejs/plugin-react";
  
  // https://vitejs.dev/config/
  export default defineConfig({
    plugins: [
      react({
        babel: {
          plugins: [
            "module:@preact-signals/safe-react/babel",
            [
              "module:@preact-signals/utils/babel",
              {
  -              experimental_stateMacros: true,
  +              stateMacros: true,
              },
            ],
          ],
        },
      }),
    ],
  });
  

Patch Changes

• Updated dependencies [dcd7e2c]
• Updated dependencies [f706a6e]
  • @preact-signals/[email protected]

Minor Changes

• b29dbc5: Disallow reexports from macro lib
• b29dbc5: Added $deref feature for state macroses to get actual state macro reference

Patch Changes

• Updated dependencies [b29dbc5]
• Updated dependencies [b29dbc5]
  • @preact-signals/[email protected]

Patch Changes

• 1b339b4: Fixed incorrect babel transform of state macro identifier inside of $

Patch Changes

• Updated dependencies [1b339b4]
  • @preact-signals/[email protected]

Patch Changes

• 79d2ace: Updated @babel/helper-module-imports
• 3801b85: [babel]: started to refernce variables

Patch Changes

• Updated dependencies [79d2ace]
• Updated dependencies [3801b85]
  • @preact-signals/[email protected]

Minor Changes

• b9d6034: Implemented reducerSignal api (reducer pattern for signals)

Patch Changes

• b9d6034: Improved hooks documentation

Patch Changes

• Updated dependencies [b9d6034]
• Updated dependencies [b9d6034]
  • @preact-signals/[email protected]

Minor Changes

• 84b296d: - implemented $derived and $useDerived macros
  • documented state macros
• 253049c: Added validation of esm imports from @preact-signals/utils/macro

Patch Changes

• 84b296d: Updated repository links
• Updated dependencies [84b296d]
  • @preact-signals/[email protected]

Patch Changes

• 84b296d: Updated repository links

Patch Changes

• 84b296d: Updated repository links

Patch Changes

• 6b09439: Export `useQueryClient# @preact-signals/query
• 84b296d: Updated repository links
• Updated dependencies [84b296d]
• Updated dependencies [253049c]
• Updated dependencies [84b296d]
  • @preact-signals/[email protected]
  • @preact-signals/[email protected]

Minor Changes

• f02e006: Updated swc_core crate to 0.90.x version, because incompatibility with Next 14.2.0

Major Changes

• 983dd69: # Breaking change:

  Added executeOptionsOnReferenceChange (default: true) to reexectue mutation or query options callback on each reference change (for proper update depending on closuje)
  This change is addresses issue that everything is needed to be signal to work properly with `useMutation# @preact-signals/query

  const [state, setState] = useState(0);
  useMutation$(() => ({
    mutationFn,
    onSuccess: () => {
      // previous behavior - state will be recaptured only if reactive dependency changed (in case without deps it will always be 0)
      // new behavior will be synced with current state value
      console.log(state);
    },
  }));
  

  Old behavior is can be used with executeOptionsOnReferenceChange: false. Options callback will be reexecuted only when deps tracked by reactivity changes

  const [state, setState] = useState(0);
  useMutation$(() => ({
    mutationFn,
    executeOptionsOnReferenceChange: false,
    onSuccess: () => {
      // state will be recaptured only if reactive dependency changed (in case without deps it will always be 0)
      console.log(state);
    },
  }));
  

Patch Changes

• e1ab313: Fixed work of useErrorBoundary prop for `useMutation# @preact-signals/query. Now it throws an error while mutation is failed
• e1ab313: Fixed incorrect `useMutation# @preact-signals/query return type
• e1ab313: Mutations options used to be never updated after mutation creation

Minor Changes

• 02878e1: Removed caching from Switch component. Added Switch.Match as alias for separete Match component
• f40d84f: Show stopped to be computed. Now reexcute on every parent render

Patch Changes

• b7f18de: Removed unecessary signal creation in Computed