eslint-plugin-react-hooks
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eslint-plugin-react-hooks - npm Package Compare versions
Comparing version 0.0.0-experimental-2c169a568 to 0.0.0-experimental-33c3af284
| { | ||
| "branch": "pull/17418", | ||
| "buildNumber": "61636", | ||
| "checksum": "aa9f6e5", | ||
| "commit": "2c169a568", | ||
| "branch": "master", | ||
| "buildNumber": "147946", | ||
| "checksum": "1d8b187", | ||
| "commit": "33c3af284", | ||
| "environment": "ci", | ||
| "reactVersion": "16.12.0-experimental-2c169a568" | ||
| "reactVersion": "16.13.1-experimental-33c3af284" | ||
| } |
@@ -1,2 +0,2 @@ | ||
| /** @license React v0.0.0-experimental-2c169a568 | ||
| /** @license React v0.0.0-experimental-33c3af284 | ||
| * eslint-plugin-react-hooks.production.min.js | ||
@@ -10,44 +10,49 @@ * | ||
| 'use strict';function S(a){return"Identifier"===a.type?/^use[A-Z0-9].*$/.test(a.name):"MemberExpression"===a.type&&!a.computed&&S(a.property)?(a=a.object,"Identifier"===a.type&&"React"===a.name):!1}function aa(a){return"Identifier"===a.type?!/^[a-z]/.test(a.name):!1}function ba(a,e){return a.name===e||"MemberExpression"===a.type&&"React"===a.object.name&&a.property.name===e}function ca(a){return!!(a.parent&&a.parent.callee&&ba(a.parent.callee,"forwardRef"))} | ||
| function da(a){return!!(a.parent&&a.parent.callee&&ba(a.parent.callee,"memo"))}function ea(a){for(;a;){var e=fa(a);if(e&&(aa(e)||S(e))||ca(a)||da(a))return!0;a=a.parent}return!1} | ||
| function fa(a){if("FunctionDeclaration"===a.type||"FunctionExpression"===a.type&&a.id)return a.id;if("FunctionExpression"===a.type||"ArrowFunctionExpression"===a.type)return"VariableDeclarator"===a.parent.type&&a.parent.init===a?a.parent.id:"AssignmentExpression"===a.parent.type&&a.parent.right===a&&"="===a.parent.operator?a.parent.left:"Property"!==a.parent.type||a.parent.value!==a||a.parent.computed?"AssignmentPattern"!==a.parent.type||a.parent.right!==a||a.parent.computed?void 0:a.parent.left: | ||
| 'use strict';function O(a){if("Identifier"===a.type)return/^use[A-Z0-9].*$/.test(a.name);if("MemberExpression"===a.type&&!a.computed&&O(a.property)){a=a.object;var c=/^[A-Z].*/;return"Identifier"===a.type&&c.test(a.name)}return!1}function aa(a){return"Identifier"===a.type?!/^[a-z]/.test(a.name):!1}function ca(a,c){return a.name===c||"MemberExpression"===a.type&&"React"===a.object.name&&a.property.name===c}function fa(a){return!!(a.parent&&a.parent.callee&&ca(a.parent.callee,"forwardRef"))} | ||
| function ha(a){return!!(a.parent&&a.parent.callee&&ca(a.parent.callee,"memo"))}function ia(a){for(;a;){var c=ja(a);if(c&&(aa(c)||O(c))||fa(a)||ha(a))return!0;a=a.parent}return!1} | ||
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| a.parent.key} | ||
| function V(a){function e(){return{isRequired:!1,isSatisfiedRecursively:!1,hasRequiredNodesBelow:!1,children:new Map}}function d(a,c){c=c.split(".");var m=!0,k=!1,d=void 0;try{for(var h=c[Symbol.iterator](),p;!(m=(p=h.next()).done);m=!0){var z=p.value,g=a.children.get(z);g||(g=e(),a.children.set(z,g));a=g}}catch(E){k=!0,d=E}finally{try{m||null==h.return||h.return()}finally{if(k)throw d;}}return a}function h(a,c,e){c=c.split(".");var m=!0,k=!1,d=void 0;try{for(var h=c[Symbol.iterator](),g;!(m=(g=h.next()).done);m= | ||
| !0){var z=a.children.get(g.value);if(!z)break;e(z);a=z}}catch(E){k=!0,d=E}finally{try{m||null==h.return||h.return()}finally{if(k)throw d;}}}function c(a,e,k,h){a.children.forEach(function(a,m){var d=h(m);a.isSatisfiedRecursively?a.hasRequiredNodesBelow&&k.add(d):a.isRequired?e.add(d):c(a,e,k,function(a){return d+"."+a})})}var z=a.dependencies,l=a.declaredDependencies,v=a.optionalDependencies,k=a.externalDependencies,C=a.isEffect,F=e();z.forEach(function(a,c){d(F,c).isRequired=!0;h(F,c,function(a){a.hasRequiredNodesBelow= | ||
| !0})});l.forEach(function(a){d(F,a.key).isSatisfiedRecursively=!0});v.forEach(function(a){d(F,a).isSatisfiedRecursively=!0});a=new Set;var g=new Set;c(F,a,g,function(a){return a});var u=[],x=new Set,A=new Set;l.forEach(function(a){a=a.key;g.has(a)?-1===u.indexOf(a)?u.push(a):A.add(a):!C||a.endsWith(".current")||k.has(a)?x.add(a):-1===u.indexOf(a)&&u.push(a)});a.forEach(function(a){u.push(a)});return{suggestedDependencies:u,unnecessaryDependencies:x,duplicateDependencies:A,missingDependencies:a}} | ||
| function ha(a){var e=a.declaredDependenciesNode,d=a.componentScope,h=a.scope;return a.declaredDependencies.map(function(a){a=d.set.get(a.key);if(null==a)return null;var c=a.defs[0];return null==c?null:"Variable"===c.type&&"VariableDeclarator"===c.node.type&&null!=c.node.init&&("ArrowFunctionExpression"===c.node.init.type||"FunctionExpression"===c.node.init.type)||"FunctionName"===c.type&&"FunctionDeclaration"===c.node.type?a:null}).filter(Boolean).map(function(a){var c=a.defs[0];a:{for(var d=!1,v= | ||
| 0;v<a.references.length;v++){var k=a.references[v];if(k.writeExpr)if(d){a=!0;break a}else{d=!0;continue}for(var C=k.from;C!==h&&null!=C;)C=C.upper;if(C!==h&&!ia(e,k.identifier)){a=!0;break a}}a=!1}return{fn:c,suggestUseCallback:a}})}function ja(a){return"MemberExpression"!==a.parent.type||a.parent.object!==a||"current"===a.parent.property.name||a.parent.computed||null!=a.parent.parent&&"CallExpression"===a.parent.parent.type&&a.parent.parent.callee===a.parent?a:ja(a.parent)} | ||
| function X(a){if("Identifier"===a.type)return a.name;if("MemberExpression"!==a.type||a.computed)throw Error("Unsupported node type: "+a.type);var e=X(a.object);a=X(a.property);return e+"."+a}function ma(a){return"MemberExpression"!==a.type||"Identifier"!==a.object.type||"React"!==a.object.name||"Identifier"!==a.property.type||a.computed?a:a.property} | ||
| function na(a,e){var d=ma(a);if("Identifier"!==d.type)return null;switch(d.name){case "useEffect":case "useLayoutEffect":case "useCallback":case "useMemo":return 0;case "useImperativeHandle":return 1;default:if(d===a&&e&&e.additionalHooks){try{var h=X(d)}catch(c){if(/Unsupported node type/.test(c.message))return 0;throw c;}return e.additionalHooks.test(h)?0:-1}return-1}} | ||
| function Y(a,e){for(var d=[a],h=null;d.length;){h=d.shift();if("Identifier"===h.type&&h.name===e.name&&h.range[0]===e.range[0]&&h.range[1]===e.range[1])return h;if(ia(h,e)){a=0;for(var c=Object.entries(h);a<c.length;a++){var z=c[a],l=z[1];"parent"!==z[0]&&(oa(l)?(l.parent=h,d.push(l)):Array.isArray(l)&&l.forEach(function(a){oa(a)&&(a.parent=h,d.push(a))}))}}}return null} | ||
| function pa(a){for(var e="",d=0;d<a.length;d++)e+=a[d],0===d&&2===a.length?e+=" and ":d===a.length-2&&2<a.length?e+=", and ":d<a.length-1&&(e+=", ");return e}function oa(a){return"object"===typeof a&&null!==a&&!Array.isArray(a)&&"string"===typeof a.type}function ia(a,e){return a.range[0]<=e.range[0]&&a.range[1]>=e.range[1]} | ||
| module.exports={rules:{"rules-of-hooks":{create:function(a){var e=[],d=[];return{onCodePathSegmentStart:function(a){return d.push(a)},onCodePathSegmentEnd:function(){return d.pop()},onCodePathStart:function(){return e.push(new Map)},onCodePathEnd:function(d,c){function h(a){var c=h.cache,b=c.get(a.id);if(null===b){if(!C.has(a.id)){C.add(a.id);c=!0;b=!1;var n=void 0;try{for(var f=a.prevSegments[Symbol.iterator](),B;!(c=(B=f.next()).done);c=!0)h(B.value)}catch(L){b=!0,n=L}finally{try{c||null==f.return|| | ||
| f.return()}finally{if(b)throw n;}}}return 0}if(void 0!==b)return b;c.set(a.id,null);if(d.thrownSegments.includes(a))b=0;else if(0===a.prevSegments.length)b=1;else{b=0;f=!0;B=!1;var e=void 0;try{n=a.prevSegments[Symbol.iterator]();for(var k;!(f=(k=n.next()).done);f=!0)b+=h(k.value)}catch(L){B=!0,e=L}finally{try{f||null==n.return||n.return()}finally{if(B)throw e;}}}a.reachable&&0===b?c.delete(a.id):c.set(a.id,b);return b}function l(a){var c=l.cache,b=c.get(a.id);if(null===b){if(!C.has(a.id)){C.add(a.id); | ||
| c=!0;b=!1;var n=void 0;try{for(var f=a.nextSegments[Symbol.iterator](),B;!(c=(B=f.next()).done);c=!0)l(B.value)}catch(L){b=!0,n=L}finally{try{c||null==f.return||f.return()}finally{if(b)throw n;}}}return 0}if(void 0!==b)return b;c.set(a.id,null);if(d.thrownSegments.includes(a))b=0;else if(0===a.nextSegments.length)b=1;else{b=0;f=!0;B=!1;var e=void 0;try{n=a.nextSegments[Symbol.iterator]();for(var k;!(f=(k=n.next()).done);f=!0)b+=l(k.value)}catch(L){B=!0,e=L}finally{try{f||null==n.return||n.return()}finally{if(B)throw e; | ||
| }}}c.set(a.id,b);return b}function v(a){var c=v.cache,b=c.get(a.id);if(null===b)return Infinity;if(void 0!==b)return b;c.set(a.id,null);if(0===a.prevSegments.length)b=1;else{b=Infinity;var n=!0,f=!1,B=void 0;try{for(var e=a.prevSegments[Symbol.iterator](),d;!(n=(d=e.next()).done);n=!0){var k=v(d.value);k<b&&(b=k)}}catch(qa){f=!0,B=qa}finally{try{n||null==e.return||e.return()}finally{if(f)throw B;}}b+=1}c.set(a.id,b);return b}var k=e.pop();if(0!==k.size){var C=new Set;h.cache=new Map;l.cache=new Map; | ||
| v.cache=new Map;var F=l(d.initialSegment),g=fa(c),u=ea(c),x=g?aa(g)||S(g):ca(c)||da(c),A=Infinity,m=!0,p=!1,I=void 0;try{for(var t=d.finalSegments[Symbol.iterator](),K;!(m=(K=t.next()).done);m=!0){var W=K.value;if(W.reachable){var R=v(W);R<A&&(A=R)}}}catch(G){p=!0,I=G}finally{try{m||null==t.return||t.return()}finally{if(p)throw I;}}m=!0;p=!1;I=void 0;try{for(var y=k[Symbol.iterator](),P;!(m=(P=y.next()).done);m=!0){var E=P.value,D=E[0],M=E[1];if(D.reachable){var J=0===D.nextSegments.length?A<=v(D): | ||
| A<v(D),T=h(D)*l(D),H=C.has(D.id);k=!0;t=!1;K=void 0;try{for(var w=M[Symbol.iterator](),N;!(k=(N=w.next()).done);k=!0){var r=N.value;H&&a.report({node:r,message:'React Hook "'+a.getSource(r)+'" may be executed more than once. Possibly because it is called in a loop. React Hooks must be called in the exact same order in every component render.'});if(x){if(!H&&T!==F){var U='React Hook "'+a.getSource(r)+'" is called conditionally. React Hooks must be called in the exact same order in every component render.'+ | ||
| (J?" Did you accidentally call a React Hook after an early return?":"");a.report({node:r,message:U})}}else if(!c.parent||"MethodDefinition"!==c.parent.type&&"ClassProperty"!==c.parent.type||c.parent.value!==c)if(g){var O='React Hook "'+a.getSource(r)+'" is called in '+('function "'+a.getSource(g)+'" ')+"that is neither a React function component nor a custom React Hook function.";a.report({node:r,message:O})}else if("Program"===c.type){var Q='React Hook "'+a.getSource(r)+'" cannot be called at the top level. React Hooks must be called in a React function component or a custom React Hook function.'; | ||
| a.report({node:r,message:Q})}else if(u){var q='React Hook "'+a.getSource(r)+'" cannot be called inside a callback. React Hooks must be called in a React function component or a custom React Hook function.';a.report({node:r,message:q})}}}catch(G){t=!0,K=G}finally{try{k||null==w.return||w.return()}finally{if(t)throw K;}}}}}catch(G){p=!0,I=G}finally{try{m||null==y.return||y.return()}finally{if(p)throw I;}}}},CallExpression:function(a){if(S(a.callee)){var c=e[e.length-1],h=d[d.length-1],l=c.get(h);l|| | ||
| (l=[],c.set(h,l));l.push(a.callee)}}}}},"exhaustive-deps":{meta:{fixable:"code",schema:[{type:"object",additionalProperties:!1,properties:{additionalHooks:{type:"string"}}}]},create:function(a){function e(a,c){return function(e){if(c.has(e))return c.get(e);var d=a(e);c.set(e,d);return d}}function d(d){function k(a){var b=!0,f=!1,c=void 0;try{for(var e=a.references[Symbol.iterator](),h;!(b=(h=e.next()).done);b=!0){var g=h.value;if(g.resolved&&I.has(g.resolved.scope)){var m=Y(d,g.identifier),l=ja(m), | ||
| p=X(l),r;if(r=A&&"Identifier"===l.type&&"MemberExpression"===l.parent.type&&!l.parent.computed&&"Identifier"===l.parent.property.type&&"current"===l.parent.property.name){for(var q=g.from,u=!1;q.block!==d;)"function"===q.type&&(u=null!=q.block.parent&&"ReturnStatement"===q.block.parent.type),q=q.upper;r=u}r&&R.set(p,{reference:g,dependencyNode:l});var t=g.resolved.defs[0];if(null!=t&&(null==t.node||t.node.init!==d.parent)&&"TypeParameter"!==t.type)if(y.has(p))y.get(p).references.push(g);else{var w= | ||
| g.resolved,z=K(w)||W(w);y.set(p,{isStatic:z,references:[g]})}}}}catch(Z){f=!0,c=Z}finally{try{b||null==e.return||e.return()}finally{if(f)throw c;}}b=!0;f=!1;c=void 0;try{for(var v=a.childScopes[Symbol.iterator](),x;!(b=(x=v.next()).done);b=!0)k(x.value)}catch(Z){f=!0,c=Z}finally{try{b||null==v.return||v.return()}finally{if(f)throw c;}}}function F(a,n,f,c){return 0===a.size?null:(1<a.size?"":n+" ")+f+" "+(1<a.size?"dependencies":"dependency")+": "+pa(Array.from(a).sort().map(function(a){return"'"+ | ||
| a+"'"}))+(". Either "+c+" "+(1<a.size?"them":"it")+" or remove the dependency array.")}if(("FunctionExpression"===d.type||"ArrowFunctionExpression"===d.type)&&"CallExpression"===d.parent.type){var g=na(d.parent.callee,h);if(d.parent.arguments[g]===d){var u=d.parent.callee,x=ma(u).name,A=x.endsWith("Effect"),m=d.parent.arguments[g+1];if(m||A){A&&d.async&&a.report({node:d,message:"Effect callbacks are synchronous to prevent race conditions. Put the async function inside:\n\nuseEffect(() => {\n async function fetchData() {\n // You can await here\n const response = await MyAPI.getData(someId);\n // ...\n }\n fetchData();\n}, [someId]); // Or [] if effect doesn't need props or state\n\nLearn more about data fetching with Hooks: https://fb.me/react-hooks-data-fetching"}); | ||
| var p=a.getScope(),I=new Set,t=null;for(g=p.upper;g;){I.add(g);if("function"===g.type)break;g=g.upper}if(g){t=g;var K=e(function(a){if(!Array.isArray(a.defs))return!1;var b=a.defs[0];if(null==b||"VariableDeclarator"!==b.node.type)return!1;var f=b.node.init;if(null==f)return!1;var d=b.node.parent;if(null==d&&(Y(t.block,b.node.id),d=b.node.parent,null==d))return!1;if("const"===d.kind&&"Literal"===f.type&&("string"===typeof f.value||"number"===typeof f.value||null===f.value))return!0;if("CallExpression"!== | ||
| f.type)return!1;f=f.callee;"MemberExpression"!==f.type||"React"!==f.object.name||null==f.property||f.computed||(f=f.property);if("Identifier"!==f.type)return!1;b=b.node.id;f=f.name;if("useRef"===f&&"Identifier"===b.type)return!0;if(("useState"===f||"useReducer"===f)&&"ArrayPattern"===b.type&&2===b.elements.length&&Array.isArray(a.identifiers)){if(b.elements[1]===a.identifiers[0]){if("useState"===f)for(a=a.references,f=0;f<a.length;f++)c.set(a[f].identifier,b.elements[0]);return!0}if(b.elements[0]=== | ||
| a.identifiers[0]&&"useState"===f)for(a=a.references,b=0;b<a.length;b++)z.add(a[b].identifier)}return!1},l),W=e(function(a){if(!Array.isArray(a.defs))return!1;a=a.defs[0];if(null==a||null==a.node||null==a.node.id)return!1;var b=a.node,f=t.childScopes;a=null;var c;for(c=0;c<f.length;c++){var d=f[c],e=d.block;if("FunctionDeclaration"===b.type&&e===b||"VariableDeclarator"===b.type&&e.parent===b){a=d;break}}if(null==a)return!1;for(c=0;c<a.through.length;c++)if(b=a.through[c],null!=b.resolved&&I.has(b.resolved.scope)&& | ||
| !K(b.resolved))return!1;return!0},v),R=new Map,y=new Map;k(p);R.forEach(function(b,c){var f=b.dependencyNode;b=b.reference.resolved.references;for(var d=!1,e=0;e<b.length;e++){var n=b[e].identifier.parent;if(null!=n&&"MemberExpression"===n.type&&!n.computed&&"Identifier"===n.property.type&&"current"===n.property.name&&"AssignmentExpression"===n.parent.type&&n.parent.left===n){d=!0;break}}d||a.report({node:f.parent.property,message:"The ref value '"+c+".current' will likely have changed by the time this effect cleanup function runs. If this ref points to a node rendered by React, copy "+ | ||
| ("'"+c+".current' to a variable inside the effect, and ")+"use that variable in the cleanup function."})});var P=new Set,E=new Set;y.forEach(function(b,c){var f=b.references;b.isStatic&&E.add(c);f.forEach(function(b){b.writeExpr&&(b=b.writeExpr,P.has(c)||(P.add(c),a.report({node:b,message:"Assignments to the '"+c+"' variable from inside React Hook "+(a.getSource(u)+" will be lost after each ")+"render. To preserve the value over time, store it in a useRef Hook and keep the mutable value in the '.current' property. Otherwise, you can move this variable directly inside "+ | ||
| (a.getSource(u)+".")})))})});if(!(0<P.size))if(m){var D=[],M=new Set;"ArrayExpression"!==m.type?a.report({node:m,message:"React Hook "+a.getSource(u)+" was passed a dependency list that is not an array literal. This means we can't statically verify whether you've passed the correct dependencies."}):m.elements.forEach(function(b){if(null!==b)if("SpreadElement"===b.type)a.report({node:b,message:"React Hook "+a.getSource(u)+" has a spread element in its dependency array. This means we can't statically verify whether you've passed the correct dependencies."}); | ||
| else{try{var c=X(b)}catch(la){if(/Unsupported node type/.test(la.message)){"Literal"===b.type?y.has(b.value)?a.report({node:b,message:"The "+b.raw+" literal is not a valid dependency because it never changes. "+("Did you mean to include "+b.value+" in the array instead?")}):a.report({node:b,message:"The "+b.raw+" literal is not a valid dependency because it never changes. You can safely remove it."}):a.report({node:b,message:"React Hook "+a.getSource(u)+" has a complex expression in the dependency array. Extract it to a separate variable so it can be statically checked."}); | ||
| return}throw la;}for(var f=b;"MemberExpression"===f.type;)f=f.object;var d=!t.through.some(function(a){return a.identifier===f});D.push({key:c,node:b});d||M.add(c)}});var J=V({dependencies:y,declaredDependencies:D,optionalDependencies:E,externalDependencies:M,isEffect:A}),T=J.suggestedDependencies;g=J.unnecessaryDependencies;var H=J.missingDependencies;J=J.duplicateDependencies;if(0===J.size+H.size+g.size)ha({declaredDependencies:D,declaredDependenciesNode:m,componentScope:t,scope:p}).forEach(function(b){var c= | ||
| b.fn,f=b.suggestUseCallback;b="The '"+c.name.name+"' function makes the dependencies of "+(x+" Hook (at line "+m.loc.start.line+") ")+"change on every render.";b=f?b+(" To fix this, "+("wrap the '"+c.name.name+"' definition into its own useCallback() Hook.")):b+(" Move it inside the "+x+" callback. "+("Alternatively, wrap the '"+c.name.name+"' definition into its own useCallback() Hook."));a.report({node:c.node,message:b,fix:function(a){if(f&&"Variable"===c.type)return[a.insertTextBefore(c.node.init, | ||
| "useCallback("),a.insertTextAfter(c.node.init,")")]}})});else{!A&&0<H.size&&(T=V({dependencies:y,declaredDependencies:[],optionalDependencies:E,externalDependencies:M,isEffect:A}).suggestedDependencies);(function(){if(0===D.length)return!0;var a=D.map(function(a){return a.key}),c=a.slice().sort();return a.join(",")===c.join(",")})()&&T.sort();var w="";if(0<g.size){var N=null;Array.from(g.keys()).forEach(function(a){null===N&&a.endsWith(".current")&&(N=a)});if(null!==N)w=" Mutable values like '"+N+ | ||
| "' aren't valid dependencies because mutating them doesn't re-render the component.";else if(0<M.size){var r=Array.from(M)[0];p.set.has(r)||(w=" Outer scope values like '"+r+"' aren't valid dependencies because mutating them doesn't re-render the component.")}}if(!w&&H.has("props")){p=y.get("props");if(null==p)return;p=p.references;if(!Array.isArray(p))return;r=!0;for(var U=0;U<p.length;U++){var O=Y(t.block,p[U].identifier);if(!O){r=!1;break}O=O.parent;if(null==O){r=!1;break}if("MemberExpression"!== | ||
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| q.missingDep+"', ")+"you can also switch to useReducer instead of useState and "+("read '"+q.missingDep+"' in the reducer.");break;case "updater":w=" You can also do a functional update '"+q.setter+"("+q.missingDep.substring(0,1)+" => ...)' if you only need '"+q.missingDep+"'"+(" in the '"+q.setter+"' call.");break;default:throw Error("Unknown case.");}}a.report({node:m,message:"React Hook "+a.getSource(u)+" has "+(F(H,"a","missing","include")||F(g,"an","unnecessary","exclude")||F(J,"a","duplicate", | ||
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| ka.join(", ")+("] as a second argument to the "+x+" Hook."),fix:function(a){return a.insertTextAfter(d,", ["+ka.join(", ")+"]")}})}}}}else"useMemo"!==x&&"useCallback"!==x||a.report({node:d.parent.callee,message:"React Hook "+x+" does nothing when called with only one argument. Did you forget to pass an array of dependencies?"})}}}var h={additionalHooks:a.options&&a.options[0]&&a.options[0].additionalHooks?new RegExp(a.options[0].additionalHooks):void 0},c=new WeakMap,z=new WeakSet,l=new WeakMap,v= | ||
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| function na(a){return"MemberExpression"!==a.parent.type&&"OptionalMemberExpression"!==a.parent.type||a.parent.object!==a||"current"===a.parent.property.name||a.parent.computed||null!=a.parent.parent&&"CallExpression"===a.parent.parent.type&&a.parent.parent.callee===a.parent?"MemberExpression"===a.type&&a.parent&&"AssignmentExpression"===a.parent.type?a.object:a:na(a.parent)} | ||
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| function pa(a,c){var e=oa(a);if("Identifier"!==e.type)return-1;switch(e.name){case "useEffect":case "useLayoutEffect":case "useCallback":case "useMemo":return 0;case "useImperativeHandle":return 1;default:if(e===a&&e.name.match(/use.+Effect/))return 0;if(e===a&&c&&c.additionalHooks){try{var h=Y(e)}catch(f){if(/Unsupported node type/.test(f.message))return 0;throw f;}return c.additionalHooks.test(h)?0:-1}return-1}} | ||
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| function sa(a){for(var c="",e=0;e<a.length;e++)c+=a[e],0===e&&2===a.length?c+=" and ":e===a.length-2&&2<a.length?c+=", and ":e<a.length-1&&(c+=", ");return c}function ra(a){return"object"===typeof a&&null!==a&&!Array.isArray(a)&&"string"===typeof a.type}function ma(a,c){return a.range[0]<=c.range[0]&&a.range[1]>=c.range[1]}exports.configs={recommended:{plugins:["react-hooks"],rules:{"react-hooks/rules-of-hooks":"error","react-hooks/exhaustive-deps":"warn"}}}; | ||
| exports.rules={"rules-of-hooks":{meta:{type:"problem",docs:{description:"enforces the Rules of Hooks",category:"Possible Errors",recommended:!0,url:"https://reactjs.org/docs/hooks-rules.html"}},create:function(a){var c=[],e=[];return{onCodePathSegmentStart:function(a){return e.push(a)},onCodePathSegmentEnd:function(){return e.pop()},onCodePathStart:function(){return c.push(new Map)},onCodePathEnd:function(e,f){function h(a,c){var b=h.cache,d=b.get(a.id);c=new Set(c);if(c.has(a.id)){b=[].concat(c); | ||
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| a.nextSegments.length)d=1;else{d=0;m=!0;B=!1;var L=void 0;try{g=a.nextSegments[Symbol.iterator]();for(var M;!(m=(M=g.next()).done);m=!0)d+=p(M.value,c)}catch(J){B=!0,L=J}finally{try{m||null==g.return||g.return()}finally{if(B)throw L;}}}b.set(a.id,d);return d}function u(a){var c=u.cache,b=c.get(a.id);if(null===b)return Infinity;if(void 0!==b)return b;c.set(a.id,null);if(0===a.prevSegments.length)b=1;else{b=Infinity;var d=!0,g=!1,m=void 0;try{for(var B=a.prevSegments[Symbol.iterator](),L;!(d= | ||
| (L=B.next()).done);d=!0){var e=u(L.value);e<b&&(b=e)}}catch(J){g=!0,m=J}finally{try{d||null==B.return||B.return()}finally{if(g)throw m;}}b+=1}c.set(a.id,b);return b}var x=c.pop();if(0!==x.size){var y=new Set;h.cache=new Map;p.cache=new Map;u.cache=new Map;var I=p(e.initialSegment),d=ja(f),b=ia(f),z=d?aa(d)||O(d):fa(f)||ha(f),A=Infinity,k=!0,n=!1,U=void 0;try{for(var q=e.finalSegments[Symbol.iterator](),F;!(k=(F=q.next()).done);k=!0){var C=F.value;if(C.reachable){var w=u(C);w<A&&(A=w)}}}catch(E){n= | ||
| !0,U=E}finally{try{k||null==q.return||q.return()}finally{if(n)throw U;}}k=!0;n=!1;U=void 0;try{for(var ba=x[Symbol.iterator](),Z;!(k=(Z=ba.next()).done);k=!0){var G=Z.value,t=G[0],W=G[1];if(t.reachable){var R=0===t.nextSegments.length?A<=u(t):A<u(t),P=h(t)*p(t),N=y.has(t.id);x=!0;q=!1;F=void 0;try{for(var l=W[Symbol.iterator](),D;!(x=(D=l.next()).done);x=!0){var v=D.value;N&&a.report({node:v,message:'React Hook "'+a.getSource(v)+'" may be executed more than once. Possibly because it is called in a loop. React Hooks must be called in the exact same order in every component render.'}); | ||
| if(z){if(!N&&P!==I){var S='React Hook "'+a.getSource(v)+'" is called conditionally. React Hooks must be called in the exact same order in every component render.'+(R?" Did you accidentally call a React Hook after an early return?":"");a.report({node:v,message:S})}}else if(f.parent&&("MethodDefinition"===f.parent.type||"ClassProperty"===f.parent.type)&&f.parent.value===f){var T='React Hook "'+a.getSource(v)+'" cannot be called in a class component. React Hooks must be called in a React function component or a custom React Hook function.'; | ||
| a.report({node:v,message:T})}else if(d){var K='React Hook "'+a.getSource(v)+'" is called in function "'+(a.getSource(d)+'" that is neither a React function component nor a custom React Hook function.');a.report({node:v,message:K})}else if("Program"===f.type){var X='React Hook "'+a.getSource(v)+'" cannot be called at the top level. React Hooks must be called in a React function component or a custom React Hook function.';a.report({node:v,message:X})}else if(b){var Q='React Hook "'+a.getSource(v)+'" cannot be called inside a callback. React Hooks must be called in a React function component or a custom React Hook function.'; | ||
| a.report({node:v,message:Q})}}}catch(E){q=!0,F=E}finally{try{x||null==l.return||l.return()}finally{if(q)throw F;}}}}}catch(E){n=!0,U=E}finally{try{k||null==ba.return||ba.return()}finally{if(n)throw U;}}}},CallExpression:function(a){if(O(a.callee)){var f=c[c.length-1],h=e[e.length-1],p=f.get(h);p||(p=[],f.set(h,p));p.push(a.callee)}}}}},"exhaustive-deps":{meta:{type:"suggestion",docs:{description:"verifies the list of dependencies for Hooks like useEffect and similar",category:"Best Practices",recommended:!0, | ||
| url:"https://github.com/facebook/react/issues/14920"},fixable:"code",schema:[{type:"object",additionalProperties:!1,enableDangerousAutofixThisMayCauseInfiniteLoops:!1,properties:{additionalHooks:{type:"string"},enableDangerousAutofixThisMayCauseInfiniteLoops:{type:"boolean"}}}]},create:function(a){function c(c){f&&Array.isArray(c.suggest)&&0<c.suggest.length&&(c.fix=c.suggest[0].fix);a.report(c)}function e(a,c){return function(b){if(c.has(b))return c.get(b);var d=a(b);c.set(b,d);return d}}function h(d, | ||
| b,h,f,k){function z(a){var c=!0,g=!1,b=void 0;try{for(var e=a.references[Symbol.iterator](),h;!(c=(h=e.next()).done);c=!0){var f=h.value;if(f.resolved&&F.has(f.resolved.scope)){var p=qa(d,f.identifier),l=na(p),A=Y(l),q;if(q=k&&"Identifier"===l.type&&"MemberExpression"===l.parent.type&&!l.parent.computed&&"Identifier"===l.parent.property.type&&"current"===l.parent.property.name){for(var n=f.from,u=!1;n.block!==d;)"function"===n.type&&(u=null!=n.block.parent&&"ReturnStatement"===n.block.parent.type), | ||
| n=n.upper;q=u}q&&G.set(A,{reference:f,dependencyNode:l});var r=f.resolved.defs[0];if(null!=r&&(null==r.node||r.node.init!==d.parent)&&"TypeParameter"!==r.type)if(t.has(A))t.get(A).references.push(f);else{var w=f.resolved,x=H(w)||Z(w);t.set(A,{isStatic:x,references:[f]})}}}}catch(ea){g=!0,b=ea}finally{try{c||null==e.return||e.return()}finally{if(g)throw b;}}c=!0;g=!1;b=void 0;try{for(var v=a.childScopes[Symbol.iterator](),y;!(c=(y=v.next()).done);c=!0)z(y.value)}catch(ea){g=!0,b=ea}finally{try{c|| | ||
| null==v.return||v.return()}finally{if(g)throw b;}}}function A(a,c,b,d){return 0===a.size?null:(1<a.size?"":c+" ")+b+" "+(1<a.size?"dependencies":"dependency")+": "+sa(Array.from(a).sort().map(function(a){return"'"+a+"'"}))+(". Either "+d+" "+(1<a.size?"them":"it")+" or remove the dependency array.")}k&&d.async&&c({node:d,message:"Effect callbacks are synchronous to prevent race conditions. Put the async function inside:\n\nuseEffect(() => {\n async function fetchData() {\n // You can await here\n const response = await MyAPI.getData(someId);\n // ...\n }\n fetchData();\n}, [someId]); // Or [] if effect doesn't need props or state\n\nLearn more about data fetching with Hooks: https://fb.me/react-hooks-data-fetching"}); | ||
| for(var q=p.acquire(d),F=new Set,C=null,w=q.upper;w;){F.add(w);if("function"===w.type)break;w=w.upper}if(w){C=w;var H=e(function(a){if(!Array.isArray(a.defs))return!1;var c=a.defs[0];if(null==c||"VariableDeclarator"!==c.node.type)return!1;var b=c.node.init;if(null==b)return!1;for(;"TSAsExpression"===b.type;)b=b.expression;var g=c.node.parent;if(null==g&&(qa(C.block,c.node.id),g=c.node.parent,null==g))return!1;if("const"===g.kind&&"Literal"===b.type&&("string"===typeof b.value||"number"===typeof b.value|| | ||
| null===b.value))return!0;if("CallExpression"!==b.type)return!1;b=b.callee;"MemberExpression"!==b.type||"React"!==b.object.name||null==b.property||b.computed||(b=b.property);if("Identifier"!==b.type)return!1;c=c.node.id;b=b.name;if("useRef"===b&&"Identifier"===c.type)return!0;if(("useState"===b||"useReducer"===b)&&"ArrayPattern"===c.type&&2===c.elements.length&&Array.isArray(a.identifiers)){if(c.elements[1]===a.identifiers[0]){if("useState"===b)for(a=a.references,b=0;b<a.length;b++)u.set(a[b].identifier, | ||
| c.elements[0]);return!0}if(c.elements[0]===a.identifiers[0]&&"useState"===b)for(a=a.references,c=0;c<a.length;c++)x.add(a[c].identifier)}return!1},y),Z=e(function(a){if(!Array.isArray(a.defs))return!1;a=a.defs[0];if(null==a||null==a.node||null==a.node.id)return!1;var c=a.node,b=C.childScopes;a=null;var g;for(g=0;g<b.length;g++){var d=b[g],e=d.block;if("FunctionDeclaration"===c.type&&e===c||"VariableDeclarator"===c.type&&e.parent===c){a=d;break}}if(null==a)return!1;for(g=0;g<a.through.length;g++)if(c= | ||
| a.through[g],null!=c.resolved&&F.has(c.resolved.scope)&&!H(c.resolved))return!1;return!0},I),G=new Map,t=new Map;z(q);G.forEach(function(a,b){var g=a.dependencyNode;a=a.reference.resolved.references;for(var d=!1,e=0;e<a.length;e++){var m=a[e].identifier.parent;if(null!=m&&"MemberExpression"===m.type&&!m.computed&&"Identifier"===m.property.type&&"current"===m.property.name&&"AssignmentExpression"===m.parent.type&&m.parent.left===m){d=!0;break}}d||c({node:g.parent.property,message:"The ref value '"+ | ||
| b+".current' will likely have changed by the time this effect cleanup function runs. If this ref points to a node rendered by React, copy '"+(b+".current' to a variable inside the effect, and use that variable in the cleanup function.")})});var W=new Set,R=new Set;t.forEach(function(b,d){var g=b.references;b.isStatic&&R.add(d);g.forEach(function(b){b.writeExpr&&(b=b.writeExpr,W.has(d)||(W.add(d),c({node:b,message:"Assignments to the '"+d+"' variable from inside React Hook "+(a.getSource(h)+" will be lost after each render. To preserve the value over time, store it in a useRef Hook and keep the mutable value in the '.current' property. Otherwise, you can move this variable directly inside ")+ | ||
| (a.getSource(h)+".")})))})});if(!(0<W.size))if(b){var P=[],N=new Set;"ArrayExpression"!==b.type?c({node:b,message:"React Hook "+a.getSource(h)+" was passed a dependency list that is not an array literal. This means we can't statically verify whether you've passed the correct dependencies."}):b.elements.forEach(function(b){if(null!==b)if("SpreadElement"===b.type)c({node:b,message:"React Hook "+a.getSource(h)+" has a spread element in its dependency array. This means we can't statically verify whether you've passed the correct dependencies."}); | ||
| else{try{var d=Y(b)}catch(M){if(/Unsupported node type/.test(M.message)){"Literal"===b.type?t.has(b.value)?c({node:b,message:"The "+b.raw+" literal is not a valid dependency because it never changes. Did you mean to include "+(b.value+" in the array instead?")}):c({node:b,message:"The "+b.raw+" literal is not a valid dependency because it never changes. You can safely remove it."}):c({node:b,message:"React Hook "+a.getSource(h)+" has a complex expression in the dependency array. Extract it to a separate variable so it can be statically checked."}); | ||
| return}throw M;}for(var g=b;"MemberExpression"===g.type;)g=g.object;var e=!C.through.some(function(a){return a.identifier===g});P.push({key:d,node:b});e||N.add(d)}});var l=ka({dependencies:t,declaredDependencies:P,optionalDependencies:R,externalDependencies:N,isEffect:k});w=l.unnecessaryDependencies;var D=l.missingDependencies,v=l.duplicateDependencies,S=l.suggestedDependencies;if(0===v.size+D.size+w.size)la({declaredDependencies:P,declaredDependenciesNode:b,componentScope:C,scope:q}).forEach(function(a){var d= | ||
| a.fn;a=a.suggestUseCallback;var e="The '"+d.name.name+"' function makes the dependencies of "+(f+" Hook (at line "+b.loc.start.line+") change on every render.");e=a?e+(" To fix this, wrap the '"+(d.name.name+"' definition into its own useCallback() Hook.")):e+(" Move it inside the "+f+" callback. Alternatively, wrap the '"+(d.name.name+"' definition into its own useCallback() Hook."));var g;a&&"Variable"===d.type&&(g=[{desc:"Wrap the '"+d.name.name+"' definition into its own useCallback() Hook.", | ||
| fix:function(a){return[a.insertTextBefore(d.node.init,"useCallback("),a.insertTextAfter(d.node.init,")")]}}]);c({node:d.node,message:e,suggest:g})});else{!k&&0<D.size&&(S=ka({dependencies:t,declaredDependencies:[],optionalDependencies:R,externalDependencies:N,isEffect:k}).suggestedDependencies);(function(){if(0===P.length)return!0;var a=P.map(function(a){return a.key}),b=a.slice().sort();return a.join(",")===b.join(",")})()&&S.sort();l="";if(0<w.size){var T=null;Array.from(w.keys()).forEach(function(a){null=== | ||
| T&&a.endsWith(".current")&&(T=a)});if(null!==T)l=" Mutable values like '"+T+"' aren't valid dependencies because mutating them doesn't re-render the component.";else if(0<N.size){var K=Array.from(N)[0];q.set.has(K)||(l=" Outer scope values like '"+K+"' aren't valid dependencies because mutating them doesn't re-render the component.")}}if(!l&&D.has("props")){q=t.get("props");if(null==q)return;q=q.references;if(!Array.isArray(q))return;K=!0;for(var X=0;X<q.length;X++){var Q=qa(C.block,q[X].identifier); | ||
| if(!Q){K=!1;break}Q=Q.parent;if(null==Q){K=!1;break}if("MemberExpression"!==Q.type){K=!1;break}}K&&(l=" However, 'props' will change when *any* prop changes, so the preferred fix is to destructure the 'props' object outside of the "+(f+" call and refer to those specific props inside ")+(a.getSource(h)+"."))}if(!l&&0<D.size){var E=null;D.forEach(function(a){if(!E){var b=C.set.get(a),c=t.get(a);if(c.references[0].resolved===b&&(b=b.defs[0],null!=b&&null!=b.name&&"Parameter"===b.type)){b=!1;for(var d, | ||
| e=0;e<c.references.length;e++)if(d=c.references[e].identifier,null!=d&&null!=d.parent&&"CallExpression"===d.parent.type&&d.parent.callee===d){b=!0;break}b&&(E=a)}}});null!==E&&(l=" If '"+E+"' changes too often, find the parent component that defines it and wrap that definition in useCallback.")}if(!l&&0<D.size){var r=null;D.forEach(function(a){if(null===r)for(var b=t.get(a).references,c,d,e=0;e<b.length;e++){c=b[e].identifier;for(d=c.parent;null!=d&&d!==C.block;){if("CallExpression"===d.type){var g= | ||
| u.get(d.callee);if(null!=g){g.name===a?r={missingDep:a,setter:d.callee.name,form:"updater"}:x.has(c)?r={missingDep:a,setter:d.callee.name,form:"reducer"}:(c=b[e].resolved,null!=c&&(c=c.defs[0],null!=c&&"Parameter"===c.type&&(r={missingDep:a,setter:d.callee.name,form:"inlineReducer"})));break}}d=d.parent}if(null!==r)break}});if(null!==r)switch(r.form){case "reducer":l=" You can also replace multiple useState variables with useReducer if '"+(r.setter+"' needs the current value of '")+(r.missingDep+ | ||
| "'.");break;case "inlineReducer":l=" If '"+r.setter+"' needs the current value of '"+(r.missingDep+"', you can also switch to useReducer instead of useState and read '")+(r.missingDep+"' in the reducer.");break;case "updater":l=" You can also do a functional update '"+r.setter+"("+r.missingDep.substring(0,1)+" => ...)' if you only need '"+r.missingDep+"' in the '"+(r.setter+"' call.");break;default:throw Error("Unknown case.");}}c({node:b,message:"React Hook "+a.getSource(h)+" has "+(A(D,"a","missing", | ||
| "include")||A(w,"an","unnecessary","exclude")||A(v,"a","duplicate","omit"))+l,suggest:[{desc:"Update the dependencies array to be: ["+S.join(", ")+"]",fix:function(a){return a.replaceText(b,"["+S.join(", ")+"]")}}]})}}else{var V=null;t.forEach(function(a,b){V||a.references.forEach(function(a){if(!V&&u.has(a.identifier)){for(a=a.from;"function"!==a.type;)a=a.upper;a.block===d&&(V=b)}})});if(V){var da=ka({dependencies:t,declaredDependencies:[],optionalDependencies:R,externalDependencies:new Set,isEffect:!0}).suggestedDependencies; | ||
| c({node:h,message:"React Hook "+f+" contains a call to '"+V+"'. Without a list of dependencies, this can lead to an infinite chain of updates. To fix this, pass ["+da.join(", ")+("] as a second argument to the "+f+" Hook."),suggest:[{desc:"Add dependencies array: ["+da.join(", ")+"]",fix:function(a){return a.insertTextAfter(d,", ["+da.join(", ")+"]")}}]})}}}}var f=a.options&&a.options[0]&&a.options[0].enableDangerousAutofixThisMayCauseInfiniteLoops||!1,H={additionalHooks:a.options&&a.options[0]&& | ||
| a.options[0].additionalHooks?new RegExp(a.options[0].additionalHooks):void 0,enableDangerousAutofixThisMayCauseInfiniteLoops:f},p=a.getSourceCode().scopeManager,u=new WeakMap,x=new WeakSet,y=new WeakMap,I=new WeakMap;return{CallExpression:function(d){var b=pa(d.callee,H);if(-1!==b){var e=d.arguments[b],f=d.callee,k=oa(f).name,n=d.arguments[b+1];d=/Effect($|[^a-z])/g.test(k);if(n||d){switch(e.type){case "FunctionExpression":case "ArrowFunctionExpression":h(e,n,f,k,d);return;case "Identifier":if(!n|| | ||
| n.elements&&n.elements.some(function(a){return"Identifier"===a.type&&a.name===e.name}))return;b=a.getScope().set.get(e.name);if(null==b||null==b.defs)return;b=b.defs[0];if(!b||!b.node)break;if("Variable"!==b.type&&"FunctionName"!==b.type)break;switch(b.node.type){case "FunctionDeclaration":h(b.node,n,f,k,d);return;case "VariableDeclarator":if(b=b.node.init)switch(b.type){case "ArrowFunctionExpression":case "FunctionExpression":h(b,n,f,k,d);return}}break;default:c({node:f,message:"React Hook "+k+" received a function whose dependencies are unknown. Pass an inline function instead."}); | ||
| return}c({node:f,message:"React Hook "+k+" has a missing dependency: '"+e.name+"'. Either include it or remove the dependency array.",suggest:[{desc:"Update the dependencies array to be: ["+e.name+"]",fix:function(a){return a.replaceText(n,"["+e.name+"]")}}]})}else"useMemo"!==k&&"useCallback"!==k||c({node:f,message:"React Hook "+k+" does nothing when called with only one argument. Did you forget to pass an array of dependencies?"})}}}}}}; |
| { | ||
| "name": "eslint-plugin-react-hooks", | ||
| "description": "ESLint rules for React Hooks", | ||
| "version": "0.0.0-experimental-2c169a568", | ||
| "version": "0.0.0-experimental-33c3af284", | ||
| "repository": { | ||
@@ -28,3 +28,3 @@ "type": "git", | ||
| "engines": { | ||
| "node": ">=7" | ||
| "node": ">=10" | ||
| }, | ||
@@ -34,3 +34,6 @@ "homepage": "https://reactjs.org/", | ||
| "eslint": "^3.0.0 || ^4.0.0 || ^5.0.0 || ^6.0.0" | ||
| }, | ||
| "devDependencies": { | ||
| "@typescript-eslint/parser": "^2.26.0" | ||
| } | ||
| } |
@@ -9,3 +9,3 @@ # `eslint-plugin-react-hooks` | ||
| **Note: If you're using Create React App, please wait for a corresponding release of `react-scripts` that includes this rule instead of adding it directly.** | ||
| **Note: If you're using Create React App, please use `react-scripts` >= 3 instead of adding it directly.** | ||
@@ -38,2 +38,13 @@ Assuming you already have ESLint installed, run: | ||
| Or use the recommended config: | ||
| ```js | ||
| { | ||
| "extends": [ | ||
| // ... | ||
| "plugin:react-hooks/recommended" | ||
| ] | ||
| } | ||
| ``` | ||
| ## Valid and Invalid Examples | ||
@@ -43,6 +54,4 @@ | ||
| For feedback about the `exhaustive-deps` rule, please post in [this thread](https://github.com/facebook/react/issues/14920). | ||
| ## License | ||
| MIT |
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Improved metrics
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