123 lines
No EOL
4.3 KiB
JavaScript
123 lines
No EOL
4.3 KiB
JavaScript
import { createRule } from '../utils/index.js';
|
|
function accessorChain(node) {
|
|
const chain = [];
|
|
let exp = node;
|
|
do {
|
|
if ('name' in exp.property) {
|
|
chain.unshift(exp.property.name);
|
|
}
|
|
else if ('value' in exp.property) {
|
|
chain.unshift(exp.property.value);
|
|
}
|
|
if (exp.object.type === 'Identifier') {
|
|
chain.unshift(exp.object.name);
|
|
break;
|
|
}
|
|
exp = exp.object;
|
|
} while (exp.type === 'MemberExpression');
|
|
return chain;
|
|
}
|
|
export default createRule({
|
|
name: 'group-exports',
|
|
meta: {
|
|
type: 'suggestion',
|
|
docs: {
|
|
category: 'Style guide',
|
|
description: 'Prefer named exports to be grouped together in a single export declaration.',
|
|
},
|
|
schema: [],
|
|
messages: {
|
|
ExportNamedDeclaration: 'Multiple named export declarations; consolidate all named exports into a single export declaration',
|
|
AssignmentExpression: 'Multiple CommonJS exports; consolidate all exports into a single assignment to `module.exports`',
|
|
},
|
|
},
|
|
defaultOptions: [],
|
|
create(context) {
|
|
const nodes = {
|
|
modules: {
|
|
set: new Set(),
|
|
sources: {},
|
|
},
|
|
types: {
|
|
set: new Set(),
|
|
sources: {},
|
|
},
|
|
commonjs: {
|
|
set: new Set(),
|
|
},
|
|
};
|
|
return {
|
|
ExportNamedDeclaration(node) {
|
|
const target = node.exportKind === 'type' ? nodes.types : nodes.modules;
|
|
if (!node.source) {
|
|
target.set.add(node);
|
|
}
|
|
else if (Array.isArray(target.sources[node.source.value])) {
|
|
target.sources[node.source.value].push(node);
|
|
}
|
|
else {
|
|
target.sources[node.source.value] = [node];
|
|
}
|
|
},
|
|
AssignmentExpression(node) {
|
|
if (node.left.type !== 'MemberExpression') {
|
|
return;
|
|
}
|
|
const chain = accessorChain(node.left);
|
|
if (chain[0] === 'module' &&
|
|
chain[1] === 'exports' &&
|
|
chain.length <= 3) {
|
|
nodes.commonjs.set.add(node);
|
|
return;
|
|
}
|
|
if (chain[0] === 'exports' && chain.length === 2) {
|
|
nodes.commonjs.set.add(node);
|
|
return;
|
|
}
|
|
},
|
|
'Program:exit'() {
|
|
if (nodes.modules.set.size > 1) {
|
|
for (const node of nodes.modules.set) {
|
|
context.report({
|
|
node,
|
|
messageId: node.type,
|
|
});
|
|
}
|
|
}
|
|
for (const node of Object.values(nodes.modules.sources)
|
|
.filter(nodesWithSource => Array.isArray(nodesWithSource) && nodesWithSource.length > 1)
|
|
.flat()) {
|
|
context.report({
|
|
node,
|
|
messageId: node.type,
|
|
});
|
|
}
|
|
if (nodes.types.set.size > 1) {
|
|
for (const node of nodes.types.set) {
|
|
context.report({
|
|
node,
|
|
messageId: node.type,
|
|
});
|
|
}
|
|
}
|
|
for (const node of Object.values(nodes.types.sources)
|
|
.filter(nodesWithSource => Array.isArray(nodesWithSource) && nodesWithSource.length > 1)
|
|
.flat()) {
|
|
context.report({
|
|
node,
|
|
messageId: node.type,
|
|
});
|
|
}
|
|
if (nodes.commonjs.set.size > 1) {
|
|
for (const node of nodes.commonjs.set) {
|
|
context.report({
|
|
node,
|
|
messageId: node.type,
|
|
});
|
|
}
|
|
}
|
|
},
|
|
};
|
|
},
|
|
});
|
|
//# sourceMappingURL=group-exports.js.map
|