use-sync-external-store
Advanced tools
Comparing version 0.0.0-experimental-cb8a50619-20210909 to 0.0.0-experimental-fd5e01c2e-20210913
@@ -32,6 +32,22 @@ /** @license React vundefined | ||
var useMemo = React.useMemo, | ||
var useRef = React.useRef, | ||
useEffect = React.useEffect, | ||
useMemo = React.useMemo, | ||
useDebugValue = React.useDebugValue; // Same as useSyncExternalStore, but supports selector and isEqual arguments. | ||
function useSyncExternalStoreExtra(subscribe, getSnapshot, selector, isEqual) { | ||
// Use this to track the rendered snapshot. | ||
var instRef = useRef(null); | ||
var inst; | ||
if (instRef.current === null) { | ||
inst = { | ||
hasValue: false, | ||
value: null | ||
}; | ||
instRef.current = inst; | ||
} else { | ||
inst = instRef.current; | ||
} | ||
var getSnapshotWithMemoizedSelector = useMemo(function () { | ||
@@ -55,2 +71,16 @@ // Track the memoized state using closure variables that are local to this | ||
if (isEqual !== undefined) { | ||
// Even if the selector has changed, the currently rendered selection | ||
// may be equal to the new selection. We should attempt to reuse the | ||
// current value if possible, to preserve downstream memoizations. | ||
if (inst.hasValue) { | ||
var currentSelection = inst.value; | ||
if (isEqual(currentSelection, _nextSelection)) { | ||
memoizedSelection = currentSelection; | ||
return currentSelection; | ||
} | ||
} | ||
} | ||
memoizedSelection = _nextSelection; | ||
@@ -85,2 +115,6 @@ return _nextSelection; | ||
var value = useSyncExternalStore.useSyncExternalStore(subscribe, getSnapshotWithMemoizedSelector); | ||
useEffect(function () { | ||
inst.hasValue = true; | ||
inst.value = value; | ||
}, [value]); | ||
useDebugValue(value); | ||
@@ -87,0 +121,0 @@ return value; |
@@ -9,2 +9,3 @@ /** @license React vundefined | ||
*/ | ||
'use strict';var k=require("react"),l=require("use-sync-external-store");function m(a,c){return a===c&&(0!==a||1/a===1/c)||a!==a&&c!==c}var n="function"===typeof Object.is?Object.is:m,p=k.useMemo,q=k.useDebugValue;exports.useSyncExternalStoreExtra=function(a,c,e,f){var r=p(function(){var a=!1,g,h;return function(){var b=c();if(!a){a=!0;g=b;var d=e(b);return h=d}d=h;if(n(g,b))return d;g=b;b=e(b);return void 0!==f&&f(d,b)?d:h=b}},[c,e,f]);a=l.useSyncExternalStore(a,r);q(a);return a}; | ||
'use strict';var k=require("react"),m=require("use-sync-external-store");function n(b,e){return b===e&&(0!==b||1/b===1/e)||b!==b&&e!==e}var p="function"===typeof Object.is?Object.is:n,q=k.useRef,r=k.useEffect,t=k.useMemo,u=k.useDebugValue; | ||
exports.useSyncExternalStoreExtra=function(b,e,l,h){var c=q(null);if(null===c.current){var f={hasValue:!1,value:null};c.current=f}else f=c.current;c=t(function(){var b=!1,c,d;return function(){var a=e();if(!b){b=!0;c=a;var g=l(a);return void 0!==h&&f.hasValue&&(a=f.value,h(a,g))?d=a:d=g}g=d;if(p(c,a))return g;c=a;a=l(a);return void 0!==h&&h(g,a)?g:d=a}},[e,l,h]);var d=m.useSyncExternalStore(b,c);r(function(){f.hasValue=!0;f.value=d},[d]);u(d);return d}; |
{ | ||
"name": "use-sync-external-store", | ||
"description": "Backwards compatible shim for React's useSyncExternalStore. Works with any React that supports hooks.", | ||
"version": "0.0.0-experimental-cb8a50619-20210909", | ||
"version": "0.0.0-experimental-fd5e01c2e-20210913", | ||
"repository": { | ||
@@ -20,4 +20,4 @@ "type": "git", | ||
"peerDependencies": { | ||
"react": "0.0.0-experimental-cb8a50619-20210909" | ||
"react": "0.0.0-experimental-fd5e01c2e-20210913" | ||
} | ||
} |
License Policy Violation
LicenseThis package is not allowed per your license policy. Review the package's license to ensure compliance.
Found 1 instance in 1 package
Minified code
QualityThis package contains minified code. This may be harmless in some cases where minified code is included in packaged libraries, however packages on npm should not minify code.
Found 1 instance in 1 package
License Policy Violation
LicenseThis package is not allowed per your license policy. Review the package's license to ensure compliance.
Found 1 instance in 1 package
Minified code
QualityThis package contains minified code. This may be harmless in some cases where minified code is included in packaged libraries, however packages on npm should not minify code.
Found 1 instance in 1 package
15344
305