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[Refactor] extract type parameters to a variable #3634

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merged 4 commits into from
Nov 4, 2023
Merged

[Refactor] extract type parameters to a variable #3634

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9fb0d42
[Refactor] `propTypes`: extract type params to var
HenryBrown0 Sep 24, 2023
0714704
[Refactor] `boolean-prop-naming`: invert if statement
HenryBrown0 Sep 24, 2023
aef6e7d
[Refactor] `function-component-definition`: exit early if no type params
HenryBrown0 Sep 24, 2023
ca30f77
[Refactor] `jsx-props-no-multi-spaces`: extract type parameters to var
HenryBrown0 Sep 24, 2023
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7 changes: 7 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -14,7 +14,14 @@ This change log adheres to standards from [Keep a CHANGELOG](https://keepachange
* [`jsx-key`]: detect conditional returns ([#3630][] @yialo)
* [`jsx-newline`]: prevent a crash when `allowMultilines ([#3633][] @ljharb)

### Changed
* [Refactor] `propTypes`: extract type params to var ([#3634][] @HenryBrown0)
* [Refactor] [`boolean-prop-naming`]: invert if statement ([#3634][] @HenryBrown0)
* [Refactor] [`function-component-definition`]: exit early if no type params ([#3634][] @HenryBrown0)
* [Refactor] [`jsx-props-no-multi-spaces`]: extract type parameters to var ([#3634][] @HenryBrown0)

[#3638]: https://github.com/jsx-eslint/eslint-plugin-react/pull/3638
[#3634]: https://github.com/jsx-eslint/eslint-plugin-react/pull/3634
[#3633]: https://github.com/jsx-eslint/eslint-plugin-react/issues/3633
[#3630]: https://github.com/jsx-eslint/eslint-plugin-react/pull/3630
[#3623]: https://github.com/jsx-eslint/eslint-plugin-react/pull/3623
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27 changes: 16 additions & 11 deletions lib/rules/boolean-prop-naming.js
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Expand Up @@ -240,19 +240,24 @@ module.exports = {
}

if (
component.node.parent
&& component.node.parent.type === 'VariableDeclarator'
&& component.node.parent.id
&& component.node.parent.id.type === 'Identifier'
&& component.node.parent.id.typeAnnotation
&& component.node.parent.id.typeAnnotation.typeAnnotation
&& component.node.parent.id.typeAnnotation.typeAnnotation.typeParameters
&& (
component.node.parent.id.typeAnnotation.typeAnnotation.typeParameters.type === 'TSTypeParameterInstantiation'
|| component.node.parent.id.typeAnnotation.typeAnnotation.typeParameters.type === 'TypeParameterInstantiation'
!component.node.parent
|| component.node.parent.type !== 'VariableDeclarator'
|| !component.node.parent.id
|| component.node.parent.id.type !== 'Identifier'
|| !component.node.parent.id.typeAnnotation
|| !component.node.parent.id.typeAnnotation.typeAnnotation
) {
return;
}

const annotationTypeParams = component.node.parent.id.typeAnnotation.typeAnnotation.typeParameters;
if (
annotationTypeParams && (
annotationTypeParams.type === 'TSTypeParameterInstantiation'
|| annotationTypeParams.type === 'TypeParameterInstantiation'
)
) {
return component.node.parent.id.typeAnnotation.typeAnnotation.typeParameters.params.find(
return annotationTypeParams.params.find(
(param) => param.type === 'TSTypeReference' || param.type === 'GenericTypeAnnotation'
);
}
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12 changes: 5 additions & 7 deletions lib/rules/function-component-definition.js
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Expand Up @@ -33,14 +33,12 @@ const UNNAMED_FUNCTION_TEMPLATES = {
};

function hasOneUnconstrainedTypeParam(node) {
if (node.typeParameters) {
return (
node.typeParameters.params.length === 1
&& !node.typeParameters.params[0].constraint
);
}
const nodeTypeParams = node.typeParameters;

return false;
return nodeTypeParams
&& nodeTypeParams.params
&& nodeTypeParams.params.length === 1
&& !nodeTypeParams.params[0].constraint;
}

function hasName(node) {
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8 changes: 6 additions & 2 deletions lib/rules/jsx-props-no-multi-spaces.js
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Expand Up @@ -98,8 +98,12 @@
}

function containsGenericType(node) {
const containsTypeParams = typeof node.typeParameters !== 'undefined';
return containsTypeParams && node.typeParameters.type === 'TSTypeParameterInstantiation';
const nodeTypeParams = node.typeParameters;
if (typeof nodeTypeParams === 'undefined') {
return false;
}

return nodeTypeParams.type === 'TSTypeParameterInstantiation';

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}

function getGenericNode(node) {
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24 changes: 14 additions & 10 deletions lib/util/propTypes.js
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Expand Up @@ -627,7 +627,8 @@
typeName = node.typeName.name;
const leftMostName = getLeftMostTypeName(node.typeName);
const shouldTraverseTypeParams = genericReactTypesImport.has(leftMostName);
if (shouldTraverseTypeParams && node.typeParameters && node.typeParameters.length !== 0) {
const nodeTypeParams = node.typeParameters;
if (shouldTraverseTypeParams && nodeTypeParams && nodeTypeParams.length !== 0) {

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// All react Generic types are derived from:
// type PropsWithChildren<P> = P & { children?: ReactNode | undefined }
// So we should construct an optional children prop
Expand All @@ -638,7 +639,7 @@
const idx = genericTypeParamIndexWherePropsArePresent[
leftMostName !== rightMostName ? rightMostName : importedName
];
const nextNode = node.typeParameters.params[idx];
const nextNode = nodeTypeParams.params[idx];

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this.visitTSNode(nextNode);
return;
}
Expand Down Expand Up @@ -727,9 +728,10 @@

convertReturnTypeToPropTypes(node) {
// ReturnType<T> should always have one parameter
if (node.typeParameters) {
if (node.typeParameters.params.length === 1) {
let returnType = node.typeParameters.params[0];
const nodeTypeParams = node.typeParameters;
if (nodeTypeParams) {
if (nodeTypeParams.params.length === 1) {
let returnType = nodeTypeParams.params[0];

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// This line is trying to handle typescript-eslint-parser
// typescript-eslint-parser TSTypeQuery is wrapped by TSTypeReference
if (astUtil.isTSTypeReference(returnType)) {
Expand Down Expand Up @@ -761,8 +763,9 @@
case 'ObjectExpression':
iterateProperties(context, res.properties, (key, value, propNode) => {
if (propNode && propNode.argument && propNode.argument.type === 'CallExpression') {
if (propNode.argument.typeParameters) {
this.visitTSNode(propNode.argument.typeParameters);
const propNodeTypeParams = propNode.argument.typeParameters;
if (propNodeTypeParams) {
this.visitTSNode(propNodeTypeParams);

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} else {
// Ignore this CallExpression return value since it doesn't have any typeParameters to let us know it's types.
this.shouldIgnorePropTypes = true;
Expand Down Expand Up @@ -960,8 +963,9 @@
break;
case 'GenericTypeAnnotation':
if (propTypes.id.name === '$ReadOnly') {
const propTypeParams = propTypes.typeParameters;
ignorePropsValidation = declarePropTypesForObjectTypeAnnotation(
propTypes.typeParameters.params[0],
propTypeParams.params[0],
declaredPropTypes
);
} else {
Expand Down Expand Up @@ -1011,9 +1015,9 @@
)
)
) {
const propTypes = node.parent.typeParameters.params[1];
const propTypesParams = node.parent.typeParameters;

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const declaredPropTypes = {};
const obj = new DeclarePropTypesForTSTypeAnnotation(propTypes, declaredPropTypes);
const obj = new DeclarePropTypesForTSTypeAnnotation(propTypesParams.params[1], declaredPropTypes);

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components.set(node, {
declaredPropTypes: obj.declaredPropTypes,
ignorePropsValidation: obj.shouldIgnorePropTypes,
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