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c2370a1be6
* chore: Add the SPDX information to each file Add copyright and licensing information as defined in version 3.0 of the REUSE Specification. * tweak format --------- Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>
280 lines
12 KiB
TypeScript
280 lines
12 KiB
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and other misskey contributors
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import { generate } from 'astring';
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import * as estree from 'estree';
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import { walk } from '../node_modules/estree-walker/src/index.js';
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import type * as estreeWalker from 'estree-walker';
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import type { Plugin } from 'vite';
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function isFalsyIdentifier(identifier: estree.Identifier): boolean {
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return identifier.name === 'undefined' || identifier.name === 'NaN';
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}
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function normalizeClassWalker(tree: estree.Node): string | null {
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if (tree.type === 'Identifier') return isFalsyIdentifier(tree) ? '' : null;
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if (tree.type === 'Literal') return typeof tree.value === 'string' ? tree.value : '';
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if (tree.type === 'BinaryExpression') {
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if (tree.operator !== '+') return null;
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const left = normalizeClassWalker(tree.left);
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const right = normalizeClassWalker(tree.right);
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if (left === null || right === null) return null;
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return `${left}${right}`;
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}
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if (tree.type === 'TemplateLiteral') {
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if (tree.expressions.some((x) => x.type !== 'Literal' && (x.type !== 'Identifier' || !isFalsyIdentifier(x)))) return null;
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return tree.quasis.reduce((a, c, i) => {
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const v = i === tree.quasis.length - 1 ? '' : (tree.expressions[i] as Partial<estree.Literal>).value;
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return a + c.value.raw + (typeof v === 'string' ? v : '');
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}, '');
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}
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if (tree.type === 'ArrayExpression') {
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const values = tree.elements.map((treeNode) => {
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if (treeNode === null) return '';
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if (treeNode.type === 'SpreadElement') return normalizeClassWalker(treeNode.argument);
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return normalizeClassWalker(treeNode);
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});
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if (values.some((x) => x === null)) return null;
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return values.join(' ');
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}
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if (tree.type === 'ObjectExpression') {
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const values = tree.properties.map((treeNode) => {
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if (treeNode.type === 'SpreadElement') return normalizeClassWalker(treeNode.argument);
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let x = treeNode.value;
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let inveted = false;
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while (x.type === 'UnaryExpression' && x.operator === '!') {
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x = x.argument;
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inveted = !inveted;
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}
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if (x.type === 'Literal') {
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if (inveted === !x.value) {
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return treeNode.key.type === 'Identifier' ? treeNode.computed ? null : treeNode.key.name : treeNode.key.type === 'Literal' ? treeNode.key.value : '';
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} else {
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return '';
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}
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}
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if (x.type === 'Identifier') {
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if (inveted !== isFalsyIdentifier(x)) {
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return '';
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} else {
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return null;
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}
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}
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return null;
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});
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if (values.some((x) => x === null)) return null;
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return values.join(' ');
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}
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console.error(`Unexpected node type: ${tree.type}`);
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return null;
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}
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export function normalizeClass(tree: estree.Node): string | null {
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const walked = normalizeClassWalker(tree);
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return walked && walked.replace(/^\s+|\s+(?=\s)|\s+$/g, '');
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}
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export function unwindCssModuleClassName(ast: estree.Node): void {
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(walk as typeof estreeWalker.walk)(ast, {
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enter(node, parent): void {
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if (parent?.type !== 'Program') return;
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if (node.type !== 'VariableDeclaration') return;
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if (node.declarations.length !== 1) return;
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if (node.declarations[0].id.type !== 'Identifier') return;
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const name = node.declarations[0].id.name;
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if (node.declarations[0].init?.type !== 'CallExpression') return;
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if (node.declarations[0].init.callee.type !== 'Identifier') return;
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if (node.declarations[0].init.callee.name !== '_export_sfc') return;
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if (node.declarations[0].init.arguments.length !== 2) return;
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if (node.declarations[0].init.arguments[0].type !== 'Identifier') return;
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const ident = node.declarations[0].init.arguments[0].name;
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if (!ident.startsWith('_sfc_main')) return;
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if (node.declarations[0].init.arguments[1].type !== 'ArrayExpression') return;
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if (node.declarations[0].init.arguments[1].elements.length === 0) return;
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const __cssModulesIndex = node.declarations[0].init.arguments[1].elements.findIndex((x) => {
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if (x?.type !== 'ArrayExpression') return false;
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if (x.elements.length !== 2) return false;
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if (x.elements[0]?.type !== 'Literal') return false;
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if (x.elements[0].value !== '__cssModules') return false;
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if (x.elements[1]?.type !== 'Identifier') return false;
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return true;
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});
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if (!~__cssModulesIndex) return;
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const cssModuleForestName = ((node.declarations[0].init.arguments[1].elements[__cssModulesIndex] as estree.ArrayExpression).elements[1] as estree.Identifier).name;
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const cssModuleForestNode = parent.body.find((x) => {
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if (x.type !== 'VariableDeclaration') return false;
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if (x.declarations.length !== 1) return false;
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if (x.declarations[0].id.type !== 'Identifier') return false;
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if (x.declarations[0].id.name !== cssModuleForestName) return false;
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if (x.declarations[0].init?.type !== 'ObjectExpression') return false;
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return true;
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}) as unknown as estree.VariableDeclaration;
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const moduleForest = new Map((cssModuleForestNode.declarations[0].init as estree.ObjectExpression).properties.flatMap((property) => {
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if (property.type !== 'Property') return [];
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if (property.key.type !== 'Literal') return [];
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if (property.value.type !== 'Identifier') return [];
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return [[property.key.value as string, property.value.name as string]];
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}));
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const sfcMain = parent.body.find((x) => {
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if (x.type !== 'VariableDeclaration') return false;
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if (x.declarations.length !== 1) return false;
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if (x.declarations[0].id.type !== 'Identifier') return false;
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if (x.declarations[0].id.name !== ident) return false;
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return true;
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}) as unknown as estree.VariableDeclaration;
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if (sfcMain.declarations[0].init?.type !== 'CallExpression') return;
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if (sfcMain.declarations[0].init.callee.type !== 'Identifier') return;
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if (sfcMain.declarations[0].init.callee.name !== 'defineComponent') return;
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if (sfcMain.declarations[0].init.arguments.length !== 1) return;
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if (sfcMain.declarations[0].init.arguments[0].type !== 'ObjectExpression') return;
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const setup = sfcMain.declarations[0].init.arguments[0].properties.find((x) => {
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if (x.type !== 'Property') return false;
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if (x.key.type !== 'Identifier') return false;
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if (x.key.name !== 'setup') return false;
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return true;
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}) as unknown as estree.Property;
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if (setup.value.type !== 'FunctionExpression') return;
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const render = setup.value.body.body.find((x) => {
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if (x.type !== 'ReturnStatement') return false;
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return true;
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}) as unknown as estree.ReturnStatement;
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if (render.argument?.type !== 'ArrowFunctionExpression') return;
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if (render.argument.params.length !== 2) return;
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const ctx = render.argument.params[0];
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if (ctx.type !== 'Identifier') return;
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if (ctx.name !== '_ctx') return;
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if (render.argument.body.type !== 'BlockStatement') return;
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for (const [key, value] of moduleForest) {
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const cssModuleTreeNode = parent.body.find((x) => {
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if (x.type !== 'VariableDeclaration') return false;
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if (x.declarations.length !== 1) return false;
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if (x.declarations[0].id.type !== 'Identifier') return false;
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if (x.declarations[0].id.name !== value) return false;
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return true;
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}) as unknown as estree.VariableDeclaration;
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if (cssModuleTreeNode.declarations[0].init?.type !== 'ObjectExpression') return;
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const moduleTree = new Map(cssModuleTreeNode.declarations[0].init.properties.flatMap((property) => {
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if (property.type !== 'Property') return [];
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const actualKey = property.key.type === 'Identifier' ? property.key.name : property.key.type === 'Literal' ? property.key.value : null;
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if (typeof actualKey !== 'string') return [];
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if (property.value.type === 'Literal') return [[actualKey, property.value.value as string]];
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if (property.value.type !== 'Identifier') return [];
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const labelledValue = property.value.name;
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const actualValue = parent.body.find((x) => {
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if (x.type !== 'VariableDeclaration') return false;
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if (x.declarations.length !== 1) return false;
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if (x.declarations[0].id.type !== 'Identifier') return false;
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if (x.declarations[0].id.name !== labelledValue) return false;
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return true;
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}) as unknown as estree.VariableDeclaration;
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if (actualValue.declarations[0].init?.type !== 'Literal') return [];
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return [[actualKey, actualValue.declarations[0].init.value as string]];
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}));
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(walk as typeof estreeWalker.walk)(render.argument.body, {
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enter(childNode) {
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if (childNode.type !== 'MemberExpression') return;
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if (childNode.object.type !== 'MemberExpression') return;
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if (childNode.object.object.type !== 'Identifier') return;
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if (childNode.object.object.name !== ctx.name) return;
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if (childNode.object.property.type !== 'Identifier') return;
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if (childNode.object.property.name !== key) return;
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if (childNode.property.type !== 'Identifier') return;
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const actualValue = moduleTree.get(childNode.property.name);
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if (actualValue === undefined) return;
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this.replace({
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type: 'Literal',
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value: actualValue,
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});
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},
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});
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(walk as typeof estreeWalker.walk)(render.argument.body, {
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enter(childNode) {
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if (childNode.type !== 'MemberExpression') return;
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if (childNode.object.type !== 'MemberExpression') return;
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if (childNode.object.object.type !== 'Identifier') return;
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if (childNode.object.object.name !== ctx.name) return;
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if (childNode.object.property.type !== 'Identifier') return;
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if (childNode.object.property.name !== key) return;
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if (childNode.property.type !== 'Identifier') return;
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console.error(`Undefined style detected: ${key}.${childNode.property.name} (in ${name})`);
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this.replace({
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type: 'Identifier',
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name: 'undefined',
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});
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},
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});
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(walk as typeof estreeWalker.walk)(render.argument.body, {
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enter(childNode) {
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if (childNode.type !== 'CallExpression') return;
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if (childNode.callee.type !== 'Identifier') return;
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if (childNode.callee.name !== 'normalizeClass') return;
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if (childNode.arguments.length !== 1) return;
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const normalized = normalizeClass(childNode.arguments[0]);
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if (normalized === null) return;
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this.replace({
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type: 'Literal',
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value: normalized,
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});
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},
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});
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}
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if (node.declarations[0].init.arguments[1].elements.length === 1) {
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this.replace({
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type: 'VariableDeclaration',
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declarations: [{
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type: 'VariableDeclarator',
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id: {
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type: 'Identifier',
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name: node.declarations[0].id.name,
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},
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init: {
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type: 'Identifier',
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name: ident,
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},
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}],
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kind: 'const',
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});
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} else {
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this.replace({
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type: 'VariableDeclaration',
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declarations: [{
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type: 'VariableDeclarator',
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id: {
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type: 'Identifier',
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name: node.declarations[0].id.name,
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},
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init: {
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type: 'CallExpression',
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callee: {
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type: 'Identifier',
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name: '_export_sfc',
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},
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arguments: [{
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type: 'Identifier',
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name: ident,
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}, {
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type: 'ArrayExpression',
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elements: node.declarations[0].init.arguments[1].elements.slice(0, __cssModulesIndex).concat(node.declarations[0].init.arguments[1].elements.slice(__cssModulesIndex + 1)),
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}],
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},
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}],
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kind: 'const',
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});
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}
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},
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});
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}
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// eslint-disable-next-line import/no-default-export
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export default function pluginUnwindCssModuleClassName(): Plugin {
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return {
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name: 'UnwindCssModuleClassName',
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renderChunk(code): { code: string } {
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const ast = this.parse(code) as unknown as estree.Node;
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unwindCssModuleClassName(ast);
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return { code: generate(ast) };
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},
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};
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}
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