server-renderer.esm-bundler.js 35 KB

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  1. import { ssrContextKey, warn as warn$1, Fragment, Static, Comment, Text, mergeProps, ssrUtils, createApp, createVNode, initDirectivesForSSR } from 'vue';
  2. import { makeMap, isOn, escapeHtml, normalizeClass, isSVGTag, propsToAttrMap, isBooleanAttr, includeBooleanAttr, isSSRSafeAttrName, isString, normalizeStyle, stringifyStyle, escapeHtmlComment, isVoidTag, isPromise, isArray, isFunction, NOOP, toDisplayString, isObject, looseEqual, looseIndexOf } from '@vue/shared';
  3. export { includeBooleanAttr as ssrIncludeBooleanAttr } from '@vue/shared';
  4. // leading comma for empty string ""
  5. const shouldIgnoreProp = makeMap(`,key,ref,innerHTML,textContent,ref_key,ref_for`);
  6. function ssrRenderAttrs(props, tag) {
  7. let ret = '';
  8. for (const key in props) {
  9. if (shouldIgnoreProp(key) ||
  10. isOn(key) ||
  11. (tag === 'textarea' && key === 'value')) {
  12. continue;
  13. }
  14. const value = props[key];
  15. if (key === 'class') {
  16. ret += ` class="${ssrRenderClass(value)}"`;
  17. }
  18. else if (key === 'style') {
  19. ret += ` style="${ssrRenderStyle(value)}"`;
  20. }
  21. else {
  22. ret += ssrRenderDynamicAttr(key, value, tag);
  23. }
  24. }
  25. return ret;
  26. }
  27. // render an attr with dynamic (unknown) key.
  28. function ssrRenderDynamicAttr(key, value, tag) {
  29. if (!isRenderableValue(value)) {
  30. return ``;
  31. }
  32. const attrKey = tag && (tag.indexOf('-') > 0 || isSVGTag(tag))
  33. ? key // preserve raw name on custom elements and svg
  34. : propsToAttrMap[key] || key.toLowerCase();
  35. if (isBooleanAttr(attrKey)) {
  36. return includeBooleanAttr(value) ? ` ${attrKey}` : ``;
  37. }
  38. else if (isSSRSafeAttrName(attrKey)) {
  39. return value === '' ? ` ${attrKey}` : ` ${attrKey}="${escapeHtml(value)}"`;
  40. }
  41. else {
  42. console.warn(`[@vue/server-renderer] Skipped rendering unsafe attribute name: ${attrKey}`);
  43. return ``;
  44. }
  45. }
  46. // Render a v-bind attr with static key. The key is pre-processed at compile
  47. // time and we only need to check and escape value.
  48. function ssrRenderAttr(key, value) {
  49. if (!isRenderableValue(value)) {
  50. return ``;
  51. }
  52. return ` ${key}="${escapeHtml(value)}"`;
  53. }
  54. function isRenderableValue(value) {
  55. if (value == null) {
  56. return false;
  57. }
  58. const type = typeof value;
  59. return type === 'string' || type === 'number' || type === 'boolean';
  60. }
  61. function ssrRenderClass(raw) {
  62. return escapeHtml(normalizeClass(raw));
  63. }
  64. function ssrRenderStyle(raw) {
  65. if (!raw) {
  66. return '';
  67. }
  68. if (isString(raw)) {
  69. return escapeHtml(raw);
  70. }
  71. const styles = normalizeStyle(raw);
  72. return escapeHtml(stringifyStyle(styles));
  73. }
  74. function ssrCompile(template, instance) {
  75. {
  76. throw new Error(`On-the-fly template compilation is not supported in the ESM build of ` +
  77. `@vue/server-renderer. All templates must be pre-compiled into ` +
  78. `render functions.`);
  79. }
  80. }
  81. function ssrRenderTeleport(parentPush, contentRenderFn, target, disabled, parentComponent) {
  82. parentPush('<!--teleport start-->');
  83. const context = parentComponent.appContext.provides[ssrContextKey];
  84. const teleportBuffers = context.__teleportBuffers || (context.__teleportBuffers = {});
  85. const targetBuffer = teleportBuffers[target] || (teleportBuffers[target] = []);
  86. // record current index of the target buffer to handle nested teleports
  87. // since the parent needs to be rendered before the child
  88. const bufferIndex = targetBuffer.length;
  89. let teleportContent;
  90. if (disabled) {
  91. contentRenderFn(parentPush);
  92. teleportContent = `<!--teleport anchor-->`;
  93. }
  94. else {
  95. const { getBuffer, push } = createBuffer();
  96. contentRenderFn(push);
  97. push(`<!--teleport anchor-->`);
  98. teleportContent = getBuffer();
  99. }
  100. targetBuffer.splice(bufferIndex, 0, teleportContent);
  101. parentPush('<!--teleport end-->');
  102. }
  103. const { createComponentInstance, setCurrentRenderingInstance, setupComponent, renderComponentRoot, normalizeVNode } = ssrUtils;
  104. // Each component has a buffer array.
  105. // A buffer array can contain one of the following:
  106. // - plain string
  107. // - A resolved buffer (recursive arrays of strings that can be unrolled
  108. // synchronously)
  109. // - An async buffer (a Promise that resolves to a resolved buffer)
  110. function createBuffer() {
  111. let appendable = false;
  112. const buffer = [];
  113. return {
  114. getBuffer() {
  115. // Return static buffer and await on items during unroll stage
  116. return buffer;
  117. },
  118. push(item) {
  119. const isStringItem = isString(item);
  120. if (appendable && isStringItem) {
  121. buffer[buffer.length - 1] += item;
  122. }
  123. else {
  124. buffer.push(item);
  125. }
  126. appendable = isStringItem;
  127. if (isPromise(item) || (isArray(item) && item.hasAsync)) {
  128. // promise, or child buffer with async, mark as async.
  129. // this allows skipping unnecessary await ticks during unroll stage
  130. buffer.hasAsync = true;
  131. }
  132. }
  133. };
  134. }
  135. function renderComponentVNode(vnode, parentComponent = null, slotScopeId) {
  136. const instance = createComponentInstance(vnode, parentComponent, null);
  137. const res = setupComponent(instance, true /* isSSR */);
  138. const hasAsyncSetup = isPromise(res);
  139. const prefetches = instance.sp; /* LifecycleHooks.SERVER_PREFETCH */
  140. if (hasAsyncSetup || prefetches) {
  141. let p = hasAsyncSetup
  142. ? res
  143. : Promise.resolve();
  144. if (prefetches) {
  145. p = p
  146. .then(() => Promise.all(prefetches.map(prefetch => prefetch.call(instance.proxy))))
  147. // Note: error display is already done by the wrapped lifecycle hook function.
  148. .catch(() => { });
  149. }
  150. return p.then(() => renderComponentSubTree(instance, slotScopeId));
  151. }
  152. else {
  153. return renderComponentSubTree(instance, slotScopeId);
  154. }
  155. }
  156. function renderComponentSubTree(instance, slotScopeId) {
  157. const comp = instance.type;
  158. const { getBuffer, push } = createBuffer();
  159. if (isFunction(comp)) {
  160. let root = renderComponentRoot(instance);
  161. // #5817 scope ID attrs not falling through if functional component doesn't
  162. // have props
  163. if (!comp.props) {
  164. for (const key in instance.attrs) {
  165. if (key.startsWith(`data-v-`)) {
  166. (root.props || (root.props = {}))[key] = ``;
  167. }
  168. }
  169. }
  170. renderVNode(push, (instance.subTree = root), instance, slotScopeId);
  171. }
  172. else {
  173. if ((!instance.render || instance.render === NOOP) &&
  174. !instance.ssrRender &&
  175. !comp.ssrRender &&
  176. isString(comp.template)) {
  177. comp.ssrRender = ssrCompile(comp.template);
  178. }
  179. // perf: enable caching of computed getters during render
  180. // since there cannot be state mutations during render.
  181. for (const e of instance.scope.effects) {
  182. if (e.computed)
  183. e.computed._cacheable = true;
  184. }
  185. const ssrRender = instance.ssrRender || comp.ssrRender;
  186. if (ssrRender) {
  187. // optimized
  188. // resolve fallthrough attrs
  189. let attrs = instance.inheritAttrs !== false ? instance.attrs : undefined;
  190. let hasCloned = false;
  191. let cur = instance;
  192. while (true) {
  193. const scopeId = cur.vnode.scopeId;
  194. if (scopeId) {
  195. if (!hasCloned) {
  196. attrs = { ...attrs };
  197. hasCloned = true;
  198. }
  199. attrs[scopeId] = '';
  200. }
  201. const parent = cur.parent;
  202. if (parent && parent.subTree && parent.subTree === cur.vnode) {
  203. // parent is a non-SSR compiled component and is rendering this
  204. // component as root. inherit its scopeId if present.
  205. cur = parent;
  206. }
  207. else {
  208. break;
  209. }
  210. }
  211. if (slotScopeId) {
  212. if (!hasCloned)
  213. attrs = { ...attrs };
  214. attrs[slotScopeId.trim()] = '';
  215. }
  216. // set current rendering instance for asset resolution
  217. const prev = setCurrentRenderingInstance(instance);
  218. try {
  219. ssrRender(instance.proxy, push, instance, attrs,
  220. // compiler-optimized bindings
  221. instance.props, instance.setupState, instance.data, instance.ctx);
  222. }
  223. finally {
  224. setCurrentRenderingInstance(prev);
  225. }
  226. }
  227. else if (instance.render && instance.render !== NOOP) {
  228. renderVNode(push, (instance.subTree = renderComponentRoot(instance)), instance, slotScopeId);
  229. }
  230. else {
  231. const componentName = comp.name || comp.__file || `<Anonymous>`;
  232. warn$1(`Component ${componentName} is missing template or render function.`);
  233. push(`<!---->`);
  234. }
  235. }
  236. return getBuffer();
  237. }
  238. function renderVNode(push, vnode, parentComponent, slotScopeId) {
  239. const { type, shapeFlag, children } = vnode;
  240. switch (type) {
  241. case Text:
  242. push(escapeHtml(children));
  243. break;
  244. case Comment:
  245. push(children ? `<!--${escapeHtmlComment(children)}-->` : `<!---->`);
  246. break;
  247. case Static:
  248. push(children);
  249. break;
  250. case Fragment:
  251. if (vnode.slotScopeIds) {
  252. slotScopeId =
  253. (slotScopeId ? slotScopeId + ' ' : '') + vnode.slotScopeIds.join(' ');
  254. }
  255. push(`<!--[-->`); // open
  256. renderVNodeChildren(push, children, parentComponent, slotScopeId);
  257. push(`<!--]-->`); // close
  258. break;
  259. default:
  260. if (shapeFlag & 1 /* ShapeFlags.ELEMENT */) {
  261. renderElementVNode(push, vnode, parentComponent, slotScopeId);
  262. }
  263. else if (shapeFlag & 6 /* ShapeFlags.COMPONENT */) {
  264. push(renderComponentVNode(vnode, parentComponent, slotScopeId));
  265. }
  266. else if (shapeFlag & 64 /* ShapeFlags.TELEPORT */) {
  267. renderTeleportVNode(push, vnode, parentComponent, slotScopeId);
  268. }
  269. else if (shapeFlag & 128 /* ShapeFlags.SUSPENSE */) {
  270. renderVNode(push, vnode.ssContent, parentComponent, slotScopeId);
  271. }
  272. else {
  273. warn$1('[@vue/server-renderer] Invalid VNode type:', type, `(${typeof type})`);
  274. }
  275. }
  276. }
  277. function renderVNodeChildren(push, children, parentComponent, slotScopeId) {
  278. for (let i = 0; i < children.length; i++) {
  279. renderVNode(push, normalizeVNode(children[i]), parentComponent, slotScopeId);
  280. }
  281. }
  282. function renderElementVNode(push, vnode, parentComponent, slotScopeId) {
  283. const tag = vnode.type;
  284. let { props, children, shapeFlag, scopeId, dirs } = vnode;
  285. let openTag = `<${tag}`;
  286. if (dirs) {
  287. props = applySSRDirectives(vnode, props, dirs);
  288. }
  289. if (props) {
  290. openTag += ssrRenderAttrs(props, tag);
  291. }
  292. if (scopeId) {
  293. openTag += ` ${scopeId}`;
  294. }
  295. // inherit parent chain scope id if this is the root node
  296. let curParent = parentComponent;
  297. let curVnode = vnode;
  298. while (curParent && curVnode === curParent.subTree) {
  299. curVnode = curParent.vnode;
  300. if (curVnode.scopeId) {
  301. openTag += ` ${curVnode.scopeId}`;
  302. }
  303. curParent = curParent.parent;
  304. }
  305. if (slotScopeId) {
  306. openTag += ` ${slotScopeId}`;
  307. }
  308. push(openTag + `>`);
  309. if (!isVoidTag(tag)) {
  310. let hasChildrenOverride = false;
  311. if (props) {
  312. if (props.innerHTML) {
  313. hasChildrenOverride = true;
  314. push(props.innerHTML);
  315. }
  316. else if (props.textContent) {
  317. hasChildrenOverride = true;
  318. push(escapeHtml(props.textContent));
  319. }
  320. else if (tag === 'textarea' && props.value) {
  321. hasChildrenOverride = true;
  322. push(escapeHtml(props.value));
  323. }
  324. }
  325. if (!hasChildrenOverride) {
  326. if (shapeFlag & 8 /* ShapeFlags.TEXT_CHILDREN */) {
  327. push(escapeHtml(children));
  328. }
  329. else if (shapeFlag & 16 /* ShapeFlags.ARRAY_CHILDREN */) {
  330. renderVNodeChildren(push, children, parentComponent, slotScopeId);
  331. }
  332. }
  333. push(`</${tag}>`);
  334. }
  335. }
  336. function applySSRDirectives(vnode, rawProps, dirs) {
  337. const toMerge = [];
  338. for (let i = 0; i < dirs.length; i++) {
  339. const binding = dirs[i];
  340. const { dir: { getSSRProps } } = binding;
  341. if (getSSRProps) {
  342. const props = getSSRProps(binding, vnode);
  343. if (props)
  344. toMerge.push(props);
  345. }
  346. }
  347. return mergeProps(rawProps || {}, ...toMerge);
  348. }
  349. function renderTeleportVNode(push, vnode, parentComponent, slotScopeId) {
  350. const target = vnode.props && vnode.props.to;
  351. const disabled = vnode.props && vnode.props.disabled;
  352. if (!target) {
  353. if (!disabled) {
  354. warn$1(`[@vue/server-renderer] Teleport is missing target prop.`);
  355. }
  356. return [];
  357. }
  358. if (!isString(target)) {
  359. warn$1(`[@vue/server-renderer] Teleport target must be a query selector string.`);
  360. return [];
  361. }
  362. ssrRenderTeleport(push, push => {
  363. renderVNodeChildren(push, vnode.children, parentComponent, slotScopeId);
  364. }, target, disabled || disabled === '', parentComponent);
  365. }
  366. const { isVNode } = ssrUtils;
  367. async function unrollBuffer(buffer) {
  368. if (buffer.hasAsync) {
  369. let ret = '';
  370. for (let i = 0; i < buffer.length; i++) {
  371. let item = buffer[i];
  372. if (isPromise(item)) {
  373. item = await item;
  374. }
  375. if (isString(item)) {
  376. ret += item;
  377. }
  378. else {
  379. ret += await unrollBuffer(item);
  380. }
  381. }
  382. return ret;
  383. }
  384. else {
  385. // sync buffer can be more efficiently unrolled without unnecessary await
  386. // ticks
  387. return unrollBufferSync(buffer);
  388. }
  389. }
  390. function unrollBufferSync(buffer) {
  391. let ret = '';
  392. for (let i = 0; i < buffer.length; i++) {
  393. let item = buffer[i];
  394. if (isString(item)) {
  395. ret += item;
  396. }
  397. else {
  398. // since this is a sync buffer, child buffers are never promises
  399. ret += unrollBufferSync(item);
  400. }
  401. }
  402. return ret;
  403. }
  404. async function renderToString(input, context = {}) {
  405. if (isVNode(input)) {
  406. // raw vnode, wrap with app (for context)
  407. return renderToString(createApp({ render: () => input }), context);
  408. }
  409. // rendering an app
  410. const vnode = createVNode(input._component, input._props);
  411. vnode.appContext = input._context;
  412. // provide the ssr context to the tree
  413. input.provide(ssrContextKey, context);
  414. const buffer = await renderComponentVNode(vnode);
  415. const result = await unrollBuffer(buffer);
  416. await resolveTeleports(context);
  417. if (context.__watcherHandles) {
  418. for (const unwatch of context.__watcherHandles) {
  419. unwatch();
  420. }
  421. }
  422. return result;
  423. }
  424. async function resolveTeleports(context) {
  425. if (context.__teleportBuffers) {
  426. context.teleports = context.teleports || {};
  427. for (const key in context.__teleportBuffers) {
  428. // note: it's OK to await sequentially here because the Promises were
  429. // created eagerly in parallel.
  430. context.teleports[key] = await unrollBuffer(await Promise.all([context.__teleportBuffers[key]]));
  431. }
  432. }
  433. }
  434. const { isVNode: isVNode$1 } = ssrUtils;
  435. async function unrollBuffer$1(buffer, stream) {
  436. if (buffer.hasAsync) {
  437. for (let i = 0; i < buffer.length; i++) {
  438. let item = buffer[i];
  439. if (isPromise(item)) {
  440. item = await item;
  441. }
  442. if (isString(item)) {
  443. stream.push(item);
  444. }
  445. else {
  446. await unrollBuffer$1(item, stream);
  447. }
  448. }
  449. }
  450. else {
  451. // sync buffer can be more efficiently unrolled without unnecessary await
  452. // ticks
  453. unrollBufferSync$1(buffer, stream);
  454. }
  455. }
  456. function unrollBufferSync$1(buffer, stream) {
  457. for (let i = 0; i < buffer.length; i++) {
  458. let item = buffer[i];
  459. if (isString(item)) {
  460. stream.push(item);
  461. }
  462. else {
  463. // since this is a sync buffer, child buffers are never promises
  464. unrollBufferSync$1(item, stream);
  465. }
  466. }
  467. }
  468. function renderToSimpleStream(input, context, stream) {
  469. if (isVNode$1(input)) {
  470. // raw vnode, wrap with app (for context)
  471. return renderToSimpleStream(createApp({ render: () => input }), context, stream);
  472. }
  473. // rendering an app
  474. const vnode = createVNode(input._component, input._props);
  475. vnode.appContext = input._context;
  476. // provide the ssr context to the tree
  477. input.provide(ssrContextKey, context);
  478. Promise.resolve(renderComponentVNode(vnode))
  479. .then(buffer => unrollBuffer$1(buffer, stream))
  480. .then(() => resolveTeleports(context))
  481. .then(() => {
  482. if (context.__watcherHandles) {
  483. for (const unwatch of context.__watcherHandles) {
  484. unwatch();
  485. }
  486. }
  487. })
  488. .then(() => stream.push(null))
  489. .catch(error => {
  490. stream.destroy(error);
  491. });
  492. return stream;
  493. }
  494. /**
  495. * @deprecated
  496. */
  497. function renderToStream(input, context = {}) {
  498. console.warn(`[@vue/server-renderer] renderToStream is deprecated - use renderToNodeStream instead.`);
  499. return renderToNodeStream(input, context);
  500. }
  501. function renderToNodeStream(input, context = {}) {
  502. const stream = null;
  503. {
  504. throw new Error(`ESM build of renderToStream() does not support renderToNodeStream(). ` +
  505. `Use pipeToNodeWritable() with an existing Node.js Writable stream ` +
  506. `instance instead.`);
  507. }
  508. }
  509. function pipeToNodeWritable(input, context = {}, writable) {
  510. renderToSimpleStream(input, context, {
  511. push(content) {
  512. if (content != null) {
  513. writable.write(content);
  514. }
  515. else {
  516. writable.end();
  517. }
  518. },
  519. destroy(err) {
  520. writable.destroy(err);
  521. }
  522. });
  523. }
  524. function renderToWebStream(input, context = {}) {
  525. if (typeof ReadableStream !== 'function') {
  526. throw new Error(`ReadableStream constructor is not available in the global scope. ` +
  527. `If the target environment does support web streams, consider using ` +
  528. `pipeToWebWritable() with an existing WritableStream instance instead.`);
  529. }
  530. const encoder = new TextEncoder();
  531. let cancelled = false;
  532. return new ReadableStream({
  533. start(controller) {
  534. renderToSimpleStream(input, context, {
  535. push(content) {
  536. if (cancelled)
  537. return;
  538. if (content != null) {
  539. controller.enqueue(encoder.encode(content));
  540. }
  541. else {
  542. controller.close();
  543. }
  544. },
  545. destroy(err) {
  546. controller.error(err);
  547. }
  548. });
  549. },
  550. cancel() {
  551. cancelled = true;
  552. }
  553. });
  554. }
  555. function pipeToWebWritable(input, context = {}, writable) {
  556. const writer = writable.getWriter();
  557. const encoder = new TextEncoder();
  558. // #4287 CloudFlare workers do not implement `ready` property
  559. let hasReady = false;
  560. try {
  561. hasReady = isPromise(writer.ready);
  562. }
  563. catch (e) { }
  564. renderToSimpleStream(input, context, {
  565. async push(content) {
  566. if (hasReady) {
  567. await writer.ready;
  568. }
  569. if (content != null) {
  570. return writer.write(encoder.encode(content));
  571. }
  572. else {
  573. return writer.close();
  574. }
  575. },
  576. destroy(err) {
  577. // TODO better error handling?
  578. console.log(err);
  579. writer.close();
  580. }
  581. });
  582. }
  583. function ssrRenderComponent(comp, props = null, children = null, parentComponent = null, slotScopeId) {
  584. return renderComponentVNode(createVNode(comp, props, children), parentComponent, slotScopeId);
  585. }
  586. function ssrRenderSlot(slots, slotName, slotProps, fallbackRenderFn, push, parentComponent, slotScopeId) {
  587. // template-compiled slots are always rendered as fragments
  588. push(`<!--[-->`);
  589. ssrRenderSlotInner(slots, slotName, slotProps, fallbackRenderFn, push, parentComponent, slotScopeId);
  590. push(`<!--]-->`);
  591. }
  592. function ssrRenderSlotInner(slots, slotName, slotProps, fallbackRenderFn, push, parentComponent, slotScopeId, transition) {
  593. const slotFn = slots[slotName];
  594. if (slotFn) {
  595. const slotBuffer = [];
  596. const bufferedPush = (item) => {
  597. slotBuffer.push(item);
  598. };
  599. const ret = slotFn(slotProps, bufferedPush, parentComponent, slotScopeId ? ' ' + slotScopeId : '');
  600. if (isArray(ret)) {
  601. // normal slot
  602. renderVNodeChildren(push, ret, parentComponent, slotScopeId);
  603. }
  604. else {
  605. // ssr slot.
  606. // check if the slot renders all comments, in which case use the fallback
  607. let isEmptySlot = true;
  608. if (transition) {
  609. isEmptySlot = false;
  610. }
  611. else {
  612. for (let i = 0; i < slotBuffer.length; i++) {
  613. if (!isComment(slotBuffer[i])) {
  614. isEmptySlot = false;
  615. break;
  616. }
  617. }
  618. }
  619. if (isEmptySlot) {
  620. if (fallbackRenderFn) {
  621. fallbackRenderFn();
  622. }
  623. }
  624. else {
  625. for (let i = 0; i < slotBuffer.length; i++) {
  626. push(slotBuffer[i]);
  627. }
  628. }
  629. }
  630. }
  631. else if (fallbackRenderFn) {
  632. fallbackRenderFn();
  633. }
  634. }
  635. const commentTestRE = /^<!--.*-->$/s;
  636. const commentRE = /<!--[^]*?-->/gm;
  637. function isComment(item) {
  638. if (typeof item !== 'string' || !commentTestRE.test(item))
  639. return false;
  640. // if item is '<!---->' or '<!--[-->' or '<!--]-->', return true directly
  641. if (item.length <= 8)
  642. return true;
  643. return !item.replace(commentRE, '').trim();
  644. }
  645. function ssrInterpolate(value) {
  646. return escapeHtml(toDisplayString(value));
  647. }
  648. function toRaw(observed) {
  649. const raw = observed && observed["__v_raw" /* ReactiveFlags.RAW */];
  650. return raw ? toRaw(raw) : observed;
  651. }
  652. function isRef(r) {
  653. return !!(r && r.__v_isRef === true);
  654. }
  655. const stack = [];
  656. function pushWarningContext(vnode) {
  657. stack.push(vnode);
  658. }
  659. function popWarningContext() {
  660. stack.pop();
  661. }
  662. function warn(msg, ...args) {
  663. if (!(process.env.NODE_ENV !== 'production'))
  664. return;
  665. const instance = stack.length ? stack[stack.length - 1].component : null;
  666. const appWarnHandler = instance && instance.appContext.config.warnHandler;
  667. const trace = getComponentTrace();
  668. if (appWarnHandler) {
  669. callWithErrorHandling(appWarnHandler, instance, 11 /* ErrorCodes.APP_WARN_HANDLER */, [
  670. msg + args.join(''),
  671. instance && instance.proxy,
  672. trace
  673. .map(({ vnode }) => `at <${formatComponentName(instance, vnode.type)}>`)
  674. .join('\n'),
  675. trace
  676. ]);
  677. }
  678. else {
  679. const warnArgs = [`[Vue warn]: ${msg}`, ...args];
  680. /* istanbul ignore if */
  681. if (trace.length &&
  682. // avoid spamming console during tests
  683. !false) {
  684. warnArgs.push(`\n`, ...formatTrace(trace));
  685. }
  686. console.warn(...warnArgs);
  687. }
  688. }
  689. function getComponentTrace() {
  690. let currentVNode = stack[stack.length - 1];
  691. if (!currentVNode) {
  692. return [];
  693. }
  694. // we can't just use the stack because it will be incomplete during updates
  695. // that did not start from the root. Re-construct the parent chain using
  696. // instance parent pointers.
  697. const normalizedStack = [];
  698. while (currentVNode) {
  699. const last = normalizedStack[0];
  700. if (last && last.vnode === currentVNode) {
  701. last.recurseCount++;
  702. }
  703. else {
  704. normalizedStack.push({
  705. vnode: currentVNode,
  706. recurseCount: 0
  707. });
  708. }
  709. const parentInstance = currentVNode.component && currentVNode.component.parent;
  710. currentVNode = parentInstance && parentInstance.vnode;
  711. }
  712. return normalizedStack;
  713. }
  714. /* istanbul ignore next */
  715. function formatTrace(trace) {
  716. const logs = [];
  717. trace.forEach((entry, i) => {
  718. logs.push(...(i === 0 ? [] : [`\n`]), ...formatTraceEntry(entry));
  719. });
  720. return logs;
  721. }
  722. function formatTraceEntry({ vnode, recurseCount }) {
  723. const postfix = recurseCount > 0 ? `... (${recurseCount} recursive calls)` : ``;
  724. const isRoot = vnode.component ? vnode.component.parent == null : false;
  725. const open = ` at <${formatComponentName(vnode.component, vnode.type, isRoot)}`;
  726. const close = `>` + postfix;
  727. return vnode.props
  728. ? [open, ...formatProps(vnode.props), close]
  729. : [open + close];
  730. }
  731. /* istanbul ignore next */
  732. function formatProps(props) {
  733. const res = [];
  734. const keys = Object.keys(props);
  735. keys.slice(0, 3).forEach(key => {
  736. res.push(...formatProp(key, props[key]));
  737. });
  738. if (keys.length > 3) {
  739. res.push(` ...`);
  740. }
  741. return res;
  742. }
  743. /* istanbul ignore next */
  744. function formatProp(key, value, raw) {
  745. if (isString(value)) {
  746. value = JSON.stringify(value);
  747. return raw ? value : [`${key}=${value}`];
  748. }
  749. else if (typeof value === 'number' ||
  750. typeof value === 'boolean' ||
  751. value == null) {
  752. return raw ? value : [`${key}=${value}`];
  753. }
  754. else if (isRef(value)) {
  755. value = formatProp(key, toRaw(value.value), true);
  756. return raw ? value : [`${key}=Ref<`, value, `>`];
  757. }
  758. else if (isFunction(value)) {
  759. return [`${key}=fn${value.name ? `<${value.name}>` : ``}`];
  760. }
  761. else {
  762. value = toRaw(value);
  763. return raw ? value : [`${key}=`, value];
  764. }
  765. }
  766. const ErrorTypeStrings = {
  767. ["sp" /* LifecycleHooks.SERVER_PREFETCH */]: 'serverPrefetch hook',
  768. ["bc" /* LifecycleHooks.BEFORE_CREATE */]: 'beforeCreate hook',
  769. ["c" /* LifecycleHooks.CREATED */]: 'created hook',
  770. ["bm" /* LifecycleHooks.BEFORE_MOUNT */]: 'beforeMount hook',
  771. ["m" /* LifecycleHooks.MOUNTED */]: 'mounted hook',
  772. ["bu" /* LifecycleHooks.BEFORE_UPDATE */]: 'beforeUpdate hook',
  773. ["u" /* LifecycleHooks.UPDATED */]: 'updated',
  774. ["bum" /* LifecycleHooks.BEFORE_UNMOUNT */]: 'beforeUnmount hook',
  775. ["um" /* LifecycleHooks.UNMOUNTED */]: 'unmounted hook',
  776. ["a" /* LifecycleHooks.ACTIVATED */]: 'activated hook',
  777. ["da" /* LifecycleHooks.DEACTIVATED */]: 'deactivated hook',
  778. ["ec" /* LifecycleHooks.ERROR_CAPTURED */]: 'errorCaptured hook',
  779. ["rtc" /* LifecycleHooks.RENDER_TRACKED */]: 'renderTracked hook',
  780. ["rtg" /* LifecycleHooks.RENDER_TRIGGERED */]: 'renderTriggered hook',
  781. [0 /* ErrorCodes.SETUP_FUNCTION */]: 'setup function',
  782. [1 /* ErrorCodes.RENDER_FUNCTION */]: 'render function',
  783. [2 /* ErrorCodes.WATCH_GETTER */]: 'watcher getter',
  784. [3 /* ErrorCodes.WATCH_CALLBACK */]: 'watcher callback',
  785. [4 /* ErrorCodes.WATCH_CLEANUP */]: 'watcher cleanup function',
  786. [5 /* ErrorCodes.NATIVE_EVENT_HANDLER */]: 'native event handler',
  787. [6 /* ErrorCodes.COMPONENT_EVENT_HANDLER */]: 'component event handler',
  788. [7 /* ErrorCodes.VNODE_HOOK */]: 'vnode hook',
  789. [8 /* ErrorCodes.DIRECTIVE_HOOK */]: 'directive hook',
  790. [9 /* ErrorCodes.TRANSITION_HOOK */]: 'transition hook',
  791. [10 /* ErrorCodes.APP_ERROR_HANDLER */]: 'app errorHandler',
  792. [11 /* ErrorCodes.APP_WARN_HANDLER */]: 'app warnHandler',
  793. [12 /* ErrorCodes.FUNCTION_REF */]: 'ref function',
  794. [13 /* ErrorCodes.ASYNC_COMPONENT_LOADER */]: 'async component loader',
  795. [14 /* ErrorCodes.SCHEDULER */]: 'scheduler flush. This is likely a Vue internals bug. ' +
  796. 'Please open an issue at https://new-issue.vuejs.org/?repo=vuejs/core'
  797. };
  798. function callWithErrorHandling(fn, instance, type, args) {
  799. let res;
  800. try {
  801. res = args ? fn(...args) : fn();
  802. }
  803. catch (err) {
  804. handleError(err, instance, type);
  805. }
  806. return res;
  807. }
  808. function handleError(err, instance, type, throwInDev = true) {
  809. const contextVNode = instance ? instance.vnode : null;
  810. if (instance) {
  811. let cur = instance.parent;
  812. // the exposed instance is the render proxy to keep it consistent with 2.x
  813. const exposedInstance = instance.proxy;
  814. // in production the hook receives only the error code
  815. const errorInfo = (process.env.NODE_ENV !== 'production') ? ErrorTypeStrings[type] : type;
  816. while (cur) {
  817. const errorCapturedHooks = cur.ec;
  818. if (errorCapturedHooks) {
  819. for (let i = 0; i < errorCapturedHooks.length; i++) {
  820. if (errorCapturedHooks[i](err, exposedInstance, errorInfo) === false) {
  821. return;
  822. }
  823. }
  824. }
  825. cur = cur.parent;
  826. }
  827. // app-level handling
  828. const appErrorHandler = instance.appContext.config.errorHandler;
  829. if (appErrorHandler) {
  830. callWithErrorHandling(appErrorHandler, null, 10 /* ErrorCodes.APP_ERROR_HANDLER */, [err, exposedInstance, errorInfo]);
  831. return;
  832. }
  833. }
  834. logError(err, type, contextVNode, throwInDev);
  835. }
  836. function logError(err, type, contextVNode, throwInDev = true) {
  837. if ((process.env.NODE_ENV !== 'production')) {
  838. const info = ErrorTypeStrings[type];
  839. if (contextVNode) {
  840. pushWarningContext(contextVNode);
  841. }
  842. warn(`Unhandled error${info ? ` during execution of ${info}` : ``}`);
  843. if (contextVNode) {
  844. popWarningContext();
  845. }
  846. // crash in dev by default so it's more noticeable
  847. if (throwInDev) {
  848. throw err;
  849. }
  850. else {
  851. console.error(err);
  852. }
  853. }
  854. else {
  855. // recover in prod to reduce the impact on end-user
  856. console.error(err);
  857. }
  858. }
  859. const classifyRE = /(?:^|[-_])(\w)/g;
  860. const classify = (str) => str.replace(classifyRE, c => c.toUpperCase()).replace(/[-_]/g, '');
  861. function getComponentName(Component, includeInferred = true) {
  862. return isFunction(Component)
  863. ? Component.displayName || Component.name
  864. : Component.name || (includeInferred && Component.__name);
  865. }
  866. /* istanbul ignore next */
  867. function formatComponentName(instance, Component, isRoot = false) {
  868. let name = getComponentName(Component);
  869. if (!name && Component.__file) {
  870. const match = Component.__file.match(/([^/\\]+)\.\w+$/);
  871. if (match) {
  872. name = match[1];
  873. }
  874. }
  875. if (!name && instance && instance.parent) {
  876. // try to infer the name based on reverse resolution
  877. const inferFromRegistry = (registry) => {
  878. for (const key in registry) {
  879. if (registry[key] === Component) {
  880. return key;
  881. }
  882. }
  883. };
  884. name =
  885. inferFromRegistry(instance.components ||
  886. instance.parent.type.components) || inferFromRegistry(instance.appContext.components);
  887. }
  888. return name ? classify(name) : isRoot ? `App` : `Anonymous`;
  889. }
  890. function ssrRenderList(source, renderItem) {
  891. if (isArray(source) || isString(source)) {
  892. for (let i = 0, l = source.length; i < l; i++) {
  893. renderItem(source[i], i);
  894. }
  895. }
  896. else if (typeof source === 'number') {
  897. if ((process.env.NODE_ENV !== 'production') && !Number.isInteger(source)) {
  898. warn(`The v-for range expect an integer value but got ${source}.`);
  899. return;
  900. }
  901. for (let i = 0; i < source; i++) {
  902. renderItem(i + 1, i);
  903. }
  904. }
  905. else if (isObject(source)) {
  906. if (source[Symbol.iterator]) {
  907. const arr = Array.from(source);
  908. for (let i = 0, l = arr.length; i < l; i++) {
  909. renderItem(arr[i], i);
  910. }
  911. }
  912. else {
  913. const keys = Object.keys(source);
  914. for (let i = 0, l = keys.length; i < l; i++) {
  915. const key = keys[i];
  916. renderItem(source[key], key, i);
  917. }
  918. }
  919. }
  920. }
  921. async function ssrRenderSuspense(push, { default: renderContent }) {
  922. if (renderContent) {
  923. renderContent();
  924. }
  925. else {
  926. push(`<!---->`);
  927. }
  928. }
  929. function ssrGetDirectiveProps(instance, dir, value, arg, modifiers = {}) {
  930. if (typeof dir !== 'function' && dir.getSSRProps) {
  931. return (dir.getSSRProps({
  932. dir,
  933. instance,
  934. value,
  935. oldValue: undefined,
  936. arg,
  937. modifiers
  938. }, null) || {});
  939. }
  940. return {};
  941. }
  942. const ssrLooseEqual = looseEqual;
  943. function ssrLooseContain(arr, value) {
  944. return looseIndexOf(arr, value) > -1;
  945. }
  946. // for <input :type="type" v-model="model" value="value">
  947. function ssrRenderDynamicModel(type, model, value) {
  948. switch (type) {
  949. case 'radio':
  950. return looseEqual(model, value) ? ' checked' : '';
  951. case 'checkbox':
  952. return (isArray(model) ? ssrLooseContain(model, value) : model)
  953. ? ' checked'
  954. : '';
  955. default:
  956. // text types
  957. return ssrRenderAttr('value', model);
  958. }
  959. }
  960. // for <input v-bind="obj" v-model="model">
  961. function ssrGetDynamicModelProps(existingProps = {}, model) {
  962. const { type, value } = existingProps;
  963. switch (type) {
  964. case 'radio':
  965. return looseEqual(model, value) ? { checked: true } : null;
  966. case 'checkbox':
  967. return (isArray(model) ? ssrLooseContain(model, value) : model)
  968. ? { checked: true }
  969. : null;
  970. default:
  971. // text types
  972. return { value: model };
  973. }
  974. }
  975. initDirectivesForSSR();
  976. export { pipeToNodeWritable, pipeToWebWritable, renderToNodeStream, renderToSimpleStream, renderToStream, renderToString, renderToWebStream, ssrGetDirectiveProps, ssrGetDynamicModelProps, ssrInterpolate, ssrLooseContain, ssrLooseEqual, ssrRenderAttr, ssrRenderAttrs, ssrRenderClass, ssrRenderComponent, ssrRenderDynamicAttr, ssrRenderDynamicModel, ssrRenderList, ssrRenderSlot, ssrRenderSlotInner, ssrRenderStyle, ssrRenderSuspense, ssrRenderTeleport, renderVNode as ssrRenderVNode };