285 lines
9.0 KiB
JavaScript
285 lines
9.0 KiB
JavaScript
|
/**
|
||
|
|
* @fileoverview Prevent missing displayName in a React component definition
|
||
|
|
* @author Yannick Croissant
|
||
|
|
*/
|
||
|
|
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
const values = require('object.values');
|
||
|
|
const filter = require('es-iterator-helpers/Iterator.prototype.filter');
|
||
|
|
const forEach = require('es-iterator-helpers/Iterator.prototype.forEach');
|
||
|
|
|
||
|
|
const Components = require('../util/Components');
|
||
|
|
const isCreateContext = require('../util/isCreateContext');
|
||
|
|
const astUtil = require('../util/ast');
|
||
|
|
const componentUtil = require('../util/componentUtil');
|
||
|
|
const docsUrl = require('../util/docsUrl');
|
||
|
|
const testReactVersion = require('../util/version').testReactVersion;
|
||
|
|
const propsUtil = require('../util/props');
|
||
|
|
const report = require('../util/report');
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------------
|
||
|
|
// Rule Definition
|
||
|
|
// ------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
const messages = {
|
||
|
|
noDisplayName: 'Component definition is missing display name',
|
||
|
|
noContextDisplayName: 'Context definition is missing display name',
|
||
|
|
};
|
||
|
|
|
||
|
|
/** @type {import('eslint').Rule.RuleModule} */
|
||
|
|
module.exports = {
|
||
|
|
meta: {
|
||
|
|
docs: {
|
||
|
|
description: 'Disallow missing displayName in a React component definition',
|
||
|
|
category: 'Best Practices',
|
||
|
|
recommended: true,
|
||
|
|
url: docsUrl('display-name'),
|
||
|
|
},
|
||
|
|
|
||
|
|
messages,
|
||
|
|
|
||
|
|
schema: [{
|
||
|
|
type: 'object',
|
||
|
|
properties: {
|
||
|
|
ignoreTranspilerName: {
|
||
|
|
type: 'boolean',
|
||
|
|
},
|
||
|
|
checkContextObjects: {
|
||
|
|
type: 'boolean',
|
||
|
|
},
|
||
|
|
},
|
||
|
|
additionalProperties: false,
|
||
|
|
}],
|
||
|
|
},
|
||
|
|
|
||
|
|
create: Components.detect((context, components, utils) => {
|
||
|
|
const config = context.options[0] || {};
|
||
|
|
const ignoreTranspilerName = config.ignoreTranspilerName || false;
|
||
|
|
const checkContextObjects = (config.checkContextObjects || false) && testReactVersion(context, '>= 16.3.0');
|
||
|
|
|
||
|
|
const contextObjects = new Map();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Mark a prop type as declared
|
||
|
|
* @param {ASTNode} node The AST node being checked.
|
||
|
|
*/
|
||
|
|
function markDisplayNameAsDeclared(node) {
|
||
|
|
components.set(node, {
|
||
|
|
hasDisplayName: true,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Checks if React.forwardRef is nested inside React.memo
|
||
|
|
* @param {ASTNode} node The AST node being checked.
|
||
|
|
* @returns {Boolean} True if React.forwardRef is nested inside React.memo, false if not.
|
||
|
|
*/
|
||
|
|
function isNestedMemo(node) {
|
||
|
|
const argumentIsCallExpression = node.arguments && node.arguments[0] && node.arguments[0].type === 'CallExpression';
|
||
|
|
|
||
|
|
return node.type === 'CallExpression' && argumentIsCallExpression && utils.isPragmaComponentWrapper(node);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Reports missing display name for a given component
|
||
|
|
* @param {Object} component The component to process
|
||
|
|
*/
|
||
|
|
function reportMissingDisplayName(component) {
|
||
|
|
if (
|
||
|
|
testReactVersion(context, '^0.14.10 || ^15.7.0 || >= 16.12.0')
|
||
|
|
&& isNestedMemo(component.node)
|
||
|
|
) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
report(context, messages.noDisplayName, 'noDisplayName', {
|
||
|
|
node: component.node,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Reports missing display name for a given context object
|
||
|
|
* @param {Object} contextObj The context object to process
|
||
|
|
*/
|
||
|
|
function reportMissingContextDisplayName(contextObj) {
|
||
|
|
report(context, messages.noContextDisplayName, 'noContextDisplayName', {
|
||
|
|
node: contextObj.node,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Checks if the component have a name set by the transpiler
|
||
|
|
* @param {ASTNode} node The AST node being checked.
|
||
|
|
* @returns {Boolean} True if component has a name, false if not.
|
||
|
|
*/
|
||
|
|
function hasTranspilerName(node) {
|
||
|
|
const namedObjectAssignment = (
|
||
|
|
node.type === 'ObjectExpression'
|
||
|
|
&& node.parent
|
||
|
|
&& node.parent.parent
|
||
|
|
&& node.parent.parent.type === 'AssignmentExpression'
|
||
|
|
&& (
|
||
|
|
!node.parent.parent.left.object
|
||
|
|
|| node.parent.parent.left.object.name !== 'module'
|
||
|
|
|| node.parent.parent.left.property.name !== 'exports'
|
||
|
|
)
|
||
|
|
);
|
||
|
|
const namedObjectDeclaration = (
|
||
|
|
node.type === 'ObjectExpression'
|
||
|
|
&& node.parent
|
||
|
|
&& node.parent.parent
|
||
|
|
&& node.parent.parent.type === 'VariableDeclarator'
|
||
|
|
);
|
||
|
|
const namedClass = (
|
||
|
|
(node.type === 'ClassDeclaration' || node.type === 'ClassExpression')
|
||
|
|
&& node.id
|
||
|
|
&& !!node.id.name
|
||
|
|
);
|
||
|
|
|
||
|
|
const namedFunctionDeclaration = (
|
||
|
|
(node.type === 'FunctionDeclaration' || node.type === 'FunctionExpression')
|
||
|
|
&& node.id
|
||
|
|
&& !!node.id.name
|
||
|
|
);
|
||
|
|
|
||
|
|
const namedFunctionExpression = (
|
||
|
|
astUtil.isFunctionLikeExpression(node)
|
||
|
|
&& node.parent
|
||
|
|
&& (node.parent.type === 'VariableDeclarator' || node.parent.type === 'Property' || node.parent.method === true)
|
||
|
|
&& (!node.parent.parent || !componentUtil.isES5Component(node.parent.parent, context))
|
||
|
|
);
|
||
|
|
|
||
|
|
if (
|
||
|
|
namedObjectAssignment || namedObjectDeclaration
|
||
|
|
|| namedClass
|
||
|
|
|| namedFunctionDeclaration || namedFunctionExpression
|
||
|
|
) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// --------------------------------------------------------------------------
|
||
|
|
// Public
|
||
|
|
// --------------------------------------------------------------------------
|
||
|
|
|
||
|
|
return {
|
||
|
|
ExpressionStatement(node) {
|
||
|
|
if (checkContextObjects && isCreateContext(node)) {
|
||
|
|
contextObjects.set(node.expression.left.name, { node, hasDisplayName: false });
|
||
|
|
}
|
||
|
|
},
|
||
|
|
VariableDeclarator(node) {
|
||
|
|
if (checkContextObjects && isCreateContext(node)) {
|
||
|
|
contextObjects.set(node.id.name, { node, hasDisplayName: false });
|
||
|
|
}
|
||
|
|
},
|
||
|
|
'ClassProperty, PropertyDefinition'(node) {
|
||
|
|
if (!propsUtil.isDisplayNameDeclaration(node)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
markDisplayNameAsDeclared(node);
|
||
|
|
},
|
||
|
|
|
||
|
|
MemberExpression(node) {
|
||
|
|
if (!propsUtil.isDisplayNameDeclaration(node.property)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (
|
||
|
|
checkContextObjects
|
||
|
|
&& node.object
|
||
|
|
&& node.object.name
|
||
|
|
&& contextObjects.has(node.object.name)
|
||
|
|
) {
|
||
|
|
contextObjects.get(node.object.name).hasDisplayName = true;
|
||
|
|
}
|
||
|
|
const component = utils.getRelatedComponent(node);
|
||
|
|
if (!component) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
markDisplayNameAsDeclared(component.node.type === 'TSAsExpression' ? component.node.expression : component.node);
|
||
|
|
},
|
||
|
|
|
||
|
|
'FunctionExpression, FunctionDeclaration, ArrowFunctionExpression'(node) {
|
||
|
|
if (ignoreTranspilerName || !hasTranspilerName(node)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (components.get(node)) {
|
||
|
|
markDisplayNameAsDeclared(node);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
MethodDefinition(node) {
|
||
|
|
if (!propsUtil.isDisplayNameDeclaration(node.key)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
markDisplayNameAsDeclared(node);
|
||
|
|
},
|
||
|
|
|
||
|
|
'ClassExpression, ClassDeclaration'(node) {
|
||
|
|
if (ignoreTranspilerName || !hasTranspilerName(node)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
markDisplayNameAsDeclared(node);
|
||
|
|
},
|
||
|
|
|
||
|
|
ObjectExpression(node) {
|
||
|
|
if (!componentUtil.isES5Component(node, context)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (ignoreTranspilerName || !hasTranspilerName(node)) {
|
||
|
|
// Search for the displayName declaration
|
||
|
|
node.properties.forEach((property) => {
|
||
|
|
if (!property.key || !propsUtil.isDisplayNameDeclaration(property.key)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
markDisplayNameAsDeclared(node);
|
||
|
|
});
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
markDisplayNameAsDeclared(node);
|
||
|
|
},
|
||
|
|
|
||
|
|
CallExpression(node) {
|
||
|
|
if (!utils.isPragmaComponentWrapper(node)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (node.arguments.length > 0 && astUtil.isFunctionLikeExpression(node.arguments[0])) {
|
||
|
|
// Skip over React.forwardRef declarations that are embedded within
|
||
|
|
// a React.memo i.e. React.memo(React.forwardRef(/* ... */))
|
||
|
|
// This means that we raise a single error for the call to React.memo
|
||
|
|
// instead of one for React.memo and one for React.forwardRef
|
||
|
|
const isWrappedInAnotherPragma = utils.getPragmaComponentWrapper(node);
|
||
|
|
if (
|
||
|
|
!isWrappedInAnotherPragma
|
||
|
|
&& (ignoreTranspilerName || !hasTranspilerName(node.arguments[0]))
|
||
|
|
) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (components.get(node)) {
|
||
|
|
markDisplayNameAsDeclared(node);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
'Program:exit'() {
|
||
|
|
const list = components.list();
|
||
|
|
// Report missing display name for all components
|
||
|
|
values(list).filter((component) => !component.hasDisplayName).forEach((component) => {
|
||
|
|
reportMissingDisplayName(component);
|
||
|
|
});
|
||
|
|
if (checkContextObjects) {
|
||
|
|
// Report missing display name for all context objects
|
||
|
|
forEach(
|
||
|
|
filter(contextObjects.values(), (v) => !v.hasDisplayName),
|
||
|
|
(contextObj) => reportMissingContextDisplayName(contextObj)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
};
|
||
|
|
}),
|
||
|
|
};
|