109 lines
2.7 KiB
JavaScript
109 lines
2.7 KiB
JavaScript
"use strict";
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const shared = require("./shared");
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module.exports = {
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meta: {
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type: "layout",
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fixable: "code",
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schema: [],
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docs: {
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url: "https://github.com/lydell/eslint-plugin-simple-import-sort#sort-order",
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},
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messages: {
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sort: "Run autofix to sort these exports!",
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},
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},
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create: (context) => {
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const parents = new Set();
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const addParent = (node) => {
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if (isExportFrom(node)) {
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parents.add(node.parent);
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}
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};
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return {
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ExportNamedDeclaration: (node) => {
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if (node.source == null && node.declaration == null) {
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maybeReportExportSpecifierSorting(node, context);
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} else {
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addParent(node);
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}
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},
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ExportAllDeclaration: addParent,
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"Program:exit": () => {
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const sourceCode = context.getSourceCode();
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for (const parent of parents) {
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for (const chunk of shared.extractChunks(parent, (node, lastNode) =>
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isPartOfChunk(node, lastNode, sourceCode)
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)) {
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maybeReportChunkSorting(chunk, context);
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}
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}
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parents.clear();
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},
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};
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},
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};
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function maybeReportChunkSorting(chunk, context) {
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const sourceCode = context.getSourceCode();
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const items = shared.getImportExportItems(
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chunk,
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sourceCode,
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() => false, // isSideEffectImport
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getSpecifiers
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);
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const sortedItems = [[shared.sortImportExportItems(items)]];
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const sorted = shared.printSortedItems(sortedItems, items, sourceCode);
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const { start } = items[0];
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const { end } = items[items.length - 1];
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shared.maybeReportSorting(context, sorted, start, end);
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}
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function maybeReportExportSpecifierSorting(node, context) {
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const sorted = shared.printWithSortedSpecifiers(
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node,
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context.getSourceCode(),
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getSpecifiers
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);
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const [start, end] = node.range;
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shared.maybeReportSorting(context, sorted, start, end);
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}
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// `export * from "a"` does not have `.specifiers`.
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function getSpecifiers(exportNode) {
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return exportNode.specifiers || [];
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}
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function isPartOfChunk(node, lastNode, sourceCode) {
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if (!isExportFrom(node)) {
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return "NotPartOfChunk";
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}
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const hasGroupingComment = sourceCode
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.getCommentsBefore(node)
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.some(
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(comment) =>
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(lastNode == null || comment.loc.start.line > lastNode.loc.end.line) &&
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comment.loc.end.line < node.loc.start.line
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);
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return hasGroupingComment ? "PartOfNewChunk" : "PartOfChunk";
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}
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// Full export-from statement.
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// export {a, b} from "A"
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// export * from "A"
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// export * as A from "A"
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function isExportFrom(node) {
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return (
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(node.type === "ExportNamedDeclaration" ||
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node.type === "ExportAllDeclaration") &&
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node.source != null
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);
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}
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