1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 | 1x 1x 1x 1x 1x 27x 38x 11x 40x 40x 40x 25x 15x 15x 15x 26x 15x 10x 10x 11x 11x 13x 13x 8x 8x 8x 8x 13x 13x 7x 12x 12x 12x 12x 14x 14x 1x 1x 13x 13x 13x 13x 13x 13x 13x 13x 1x 1x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 1x 15x 15x 15x 15x 15x 27x 14x 14x 14x 14x 14x 14x 1x 1x 1x 13x 13x 13x 13x 13x | 'use-strict' const { addDefault } = require('@babel/helper-module-imports') const visited = Symbol('visited') const IMPORT_UNIVERSAL_DEFAULT = { id: Symbol('universalImportId'), source: 'babel-plugin-universal-import/universalImport', nameHint: 'universalImport' } const IMPORT_CSS_DEFAULT = { id: Symbol('importCssId'), source: 'babel-plugin-universal-import/importCss', nameHint: 'importCss' } const IMPORT_PATH_DEFAULT = { id: Symbol('pathId'), source: 'path', nameHint: 'path' } function getImportArgPath(p) { return p.parentPath.get('arguments')[0] } function trimChunkNameBaseDir(baseDir) { return baseDir.replace(/^[./]+|(\.js$)/g, '') } function prepareChunkNamePath(path) { return path.replace(/\//g, '-') } function getImport(p, { id, source, nameHint }) { Eif (!p.hub.file[id]) { p.hub.file[id] = addDefault(p, source, { nameHint }) } return p.hub.file[id] } function createTrimmedChunkName(t, importArgNode) { if (importArgNode.quasis) { let quasis = importArgNode.quasis.slice(0) const baseDir = trimChunkNameBaseDir(quasis[0].value.cooked) quasis[0] = Object.assign({}, quasis[0], { value: { raw: baseDir, cooked: baseDir } }) quasis = quasis.map((quasi, i) => (i > 0 ? prepareQuasi(quasi) : quasi)) return Object.assign({}, importArgNode, { quasis }) } const moduleName = trimChunkNameBaseDir(importArgNode.value) return t.stringLiteral(moduleName) } function prepareQuasi(quasi) { const newPath = prepareChunkNamePath(quasi.value.cooked) return Object.assign({}, quasi, { value: { raw: newPath, cooked: newPath } }) } function getMagicCommentChunkName(importArgNode) { const { quasis, expressions } = importArgNode if (!quasis) return trimChunkNameBaseDir(importArgNode.value) const baseDir = quasis[0].value.cooked const hasExpressions = expressions.length > 0 const chunkName = baseDir + (hasExpressions ? '[request]' : '') return trimChunkNameBaseDir(chunkName) } function getComponentId(t, importArgNode) { const { quasis, expressions } = importArgNode if (!quasis) return importArgNode.value return quasis.reduce((str, quasi, i) => { const q = quasi.value.cooked const id = expressions[i] && expressions[i].name str += id ? `${q}\${${id}}` : q return str }, '') } function existingMagicCommentChunkName(importArgNode) { const { leadingComments } = importArgNode if ( leadingComments && leadingComments.length && leadingComments[0].value.indexOf('webpackChunkName') !== -1 ) { try { return leadingComments[0].value .split('webpackChunkName:')[1] .replace(/["']/g, '') .trim() } catch (e) { return null } } return null } function idOption(t, importArgNode) { const id = getComponentId(t, importArgNode) return t.objectProperty(t.identifier('id'), t.stringLiteral(id)) } function fileOption(t, p) { return t.objectProperty( t.identifier('file'), t.stringLiteral(p.hub.file.opts.filename) ) } function getCssOptionExpression(t, cssOptions) { const opts = Object.keys(cssOptions).reduce((options, option) => { const cssOption = cssOptions[option] const optionType = typeof cssOption if (optionType !== 'undefined') { const optionProperty = t.objectProperty( t.identifier(option), t[`${optionType}Literal`](cssOption) ) options.push(optionProperty) } return options }, []) return t.objectExpression(opts) } function loadOption(t, loadTemplate, p, importArgNode, cssOptions) { const argPath = getImportArgPath(p) const generatedChunkName = getMagicCommentChunkName(importArgNode) const existingChunkName = t.existingChunkName const chunkName = existingChunkName || generatedChunkName const trimmedChunkName = existingChunkName ? t.stringLiteral(generatedChunkName) : createTrimmedChunkName(t, importArgNode) delete argPath.node.leadingComments argPath.addComment('leading', ` webpackChunkName: '${chunkName}' `) const cssOpts = getCssOptionExpression(t, cssOptions) const load = loadTemplate({ IMPORT: argPath.parent, IMPORT_CSS: getImport(p, IMPORT_CSS_DEFAULT), MODULE: trimmedChunkName, CSS_OPTIONS: cssOpts }).expression return t.objectProperty(t.identifier('load'), load) } function pathOption(t, pathTemplate, p, importArgNode) { const path = pathTemplate({ PATH: getImport(p, IMPORT_PATH_DEFAULT), MODULE: importArgNode }).expression return t.objectProperty(t.identifier('path'), path) } function resolveOption(t, resolveTemplate, importArgNode) { const resolve = resolveTemplate({ MODULE: importArgNode }).expression return t.objectProperty(t.identifier('resolve'), resolve) } function chunkNameOption(t, chunkNameTemplate, importArgNode) { const existingChunkName = t.existingChunkName const generatedChunk = createTrimmedChunkName(t, importArgNode) const trimmedChunkName = existingChunkName ? t.stringLiteral(existingChunkName) : generatedChunk const chunkName = chunkNameTemplate({ MODULE: trimmedChunkName }).expression return t.objectProperty(t.identifier('chunkName'), chunkName) } module.exports = function universalImportPlugin({ types: t, template }) { const chunkNameTemplate = template('() => MODULE') const pathTemplate = template('() => PATH.join(__dirname, MODULE)') const resolveTemplate = template('() => require.resolveWeak(MODULE)') const loadTemplate = template( '() => Promise.all([IMPORT, IMPORT_CSS(MODULE, CSS_OPTIONS)]).then(proms => proms[0])' ) return { name: 'universal-import', visitor: { Import(p) { if (p[visited]) return p[visited] = true const importArgNode = getImportArgPath(p).node t.existingChunkName = existingMagicCommentChunkName(importArgNode) const universalImport = getImport(p, IMPORT_UNIVERSAL_DEFAULT) const cssOptions = { disableWarnings: this.opts.disableWarnings } // if being used in an await statement, return load() promise if ( p.parentPath.parentPath.isYieldExpression() || // await transformed already t.isAwaitExpression(p.parentPath.parentPath.node) // await not transformed already ) { const func = t.callExpression(universalImport, [ loadOption(t, loadTemplate, p, importArgNode, cssOptions).value, t.booleanLiteral(false) ]) p.parentPath.replaceWith(func) return } const opts = this.opts.babelServer ? [ idOption(t, importArgNode), fileOption(t, p), pathOption(t, pathTemplate, p, importArgNode), resolveOption(t, resolveTemplate, importArgNode), chunkNameOption(t, chunkNameTemplate, importArgNode) ] : [ idOption(t, importArgNode), fileOption(t, p), loadOption(t, loadTemplate, p, importArgNode, cssOptions), // only when not on a babel-server pathOption(t, pathTemplate, p, importArgNode), resolveOption(t, resolveTemplate, importArgNode), chunkNameOption(t, chunkNameTemplate, importArgNode) ] const options = t.objectExpression(opts) const func = t.callExpression(universalImport, [options]) delete t.existingChunkName p.parentPath.replaceWith(func) } } } } |