Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 | 94x 281x 4578x 4578x 4578x 4385x 4578x 4578x 4319x 4319x 1x 1x 4319x 4319x 259x 259x 218x 259x 6x 6x 259x 4x 4x 4x 4578x 4578x 4578x 45x 4578x 4336x 4336x 4336x 189x 145x 2x 145x 44x 3x 3x 3x 3x 5x 5x 2x 2x 3x 3x 3x 3x 2x 4578x 112x 112x 1x 1x 1x 4578x 3x 3x 3x 4578x 190x 190x 2x 190x 4578x 45x 4533x 4578x 4578x 94x 55x 55x 55x 55x 55x 10x 45x 45x 55x 45x 45x 45x 12x 33x 2x 55x 294x 719x 719x 718x 292x 4x 288x 288x 8x 1x 281x 94x 230x 74x 10x 230x 94x 2x 2x 2x 2x 94x 144x 422x 422x 422x 422x 7x 415x 28x 387x 41x 5x 36x 1x 1x 35x 24x 24x 27x 27x 21x 346x 108x 106x 240x 82x 158x 7x 151x 2x 149x 14x 150x 150x 21x 129x 156x 156x 103x 26x 177x 177x 177x 1x 176x 1549x 887x 887x 33x 33x 887x 596x 596x 291x 1549x 5x | import {
type ComponentInternalInstance,
type Data,
type FunctionalComponent,
getComponentName,
} from './component'
import {
Comment,
type VNode,
type VNodeArrayChildren,
blockStack,
cloneVNode,
createVNode,
isVNode,
normalizeVNode,
} from './vnode'
import { ErrorCodes, handleError } from './errorHandling'
import {
PatchFlags,
ShapeFlags,
hasOwn,
isModelListener,
isObject,
isOn,
looseEqual,
} from '@vue/shared'
import { warn } from './warning'
import { isHmrUpdating } from './hmr'
import type { NormalizedProps } from './componentProps'
import { isEmitListener } from './componentEmits'
import { setCurrentRenderingInstance } from './componentRenderContext'
import {
DeprecationTypes,
isCompatEnabled,
warnDeprecation,
} from './compat/compatConfig'
import { shallowReadonly } from '@vue/reactivity'
import { getInnerChild, setTransitionHooks } from './components/BaseTransition'
import { isTeleport } from './components/Teleport'
/**
* dev only flag to track whether $attrs was used during render.
* If $attrs was used during render then the warning for failed attrs
* fallthrough can be suppressed.
*/
let accessedAttrs: boolean = false
export function markAttrsAccessed(): void {
accessedAttrs = true
}
type SetRootFn = ((root: VNode) => void) | undefined
export function renderComponentRoot(
instance: ComponentInternalInstance,
): VNode {
const {
type: Component,
vnode,
proxy,
withProxy,
propsOptions: [propsOptions],
slots,
attrs,
emit,
render,
renderCache,
props,
data,
setupState,
ctx,
inheritAttrs,
} = instance
const prev = setCurrentRenderingInstance(instance)
let result
let fallthroughAttrs
if (__DEV__) {
accessedAttrs = false
}
try {
if (vnode.shapeFlag & ShapeFlags.STATEFUL_COMPONENT) {
// withProxy is a proxy with a different `has` trap only for
// runtime-compiled render functions using `with` block.
const proxyToUse = withProxy || proxy
// 'this' isn't available in production builds with `<script setup>`,
// so warn if it's used in dev.
const thisProxy =
__DEV__ && setupState.__isScriptSetup
? new Proxy(proxyToUse!, {
get(target, key, receiver) {
warn(
`Property '${String(
key,
)}' was accessed via 'this'. Avoid using 'this' in templates.`,
)
return Reflect.get(target, key, receiver)
},
})
: proxyToUse
result = normalizeVNode(
render!.call(
thisProxy,
proxyToUse!,
renderCache,
__DEV__ ? shallowReadonly(props) : props,
setupState,
data,
ctx,
),
)
fallthroughAttrs = attrs
} else {
// functional
const render = Component as FunctionalComponent
// in dev, mark attrs accessed if optional props (attrs === props)
if (__DEV__ && attrs === props) {
markAttrsAccessed()
}
result = normalizeVNode(
render.length > 1
? render(
__DEV__ ? shallowReadonly(props) : props,
__DEV__
? {
get attrs() {
markAttrsAccessed()
return shallowReadonly(attrs)
},
slots,
emit,
}
: { attrs, slots, emit },
)
: render(
__DEV__ ? shallowReadonly(props) : props,
null as any /* we know it doesn't need it */,
),
)
fallthroughAttrs = Component.props
? attrs
: getFunctionalFallthrough(attrs)
}
} catch (err) {
blockStack.length = 0
handleError(err, instance, ErrorCodes.RENDER_FUNCTION)
result = createVNode(Comment)
}
// attr merging
// in dev mode, comments are preserved, and it's possible for a template
// to have comments along side the root element which makes it a fragment
let root = result
let setRoot: SetRootFn = undefined
if (
__DEV__ &&
result.patchFlag > 0 &&
result.patchFlag & PatchFlags.DEV_ROOT_FRAGMENT
) {
;[root, setRoot] = getChildRoot(result)
}
if (fallthroughAttrs && inheritAttrs !== false) {
const keys = Object.keys(fallthroughAttrs)
const { shapeFlag } = root
if (keys.length) {
if (shapeFlag & (ShapeFlags.ELEMENT | ShapeFlags.COMPONENT)) {
if (propsOptions && keys.some(isModelListener)) {
// If a v-model listener (onUpdate:xxx) has a corresponding declared
// prop, it indicates this component expects to handle v-model and
// it should not fallthrough.
// related: #1543, #1643, #1989
fallthroughAttrs = filterModelListeners(
fallthroughAttrs,
propsOptions,
)
}
root = cloneVNode(root, fallthroughAttrs, false, true)
} else if (__DEV__ && !accessedAttrs && root.type !== Comment) {
const allAttrs = Object.keys(attrs)
const eventAttrs: string[] = []
const extraAttrs: string[] = []
for (let i = 0, l = allAttrs.length; i < l; i++) {
const key = allAttrs[i]
if (isOn(key)) {
// ignore v-model handlers when they fail to fallthrough
Eif (!isModelListener(key)) {
// remove `on`, lowercase first letter to reflect event casing
// accurately
eventAttrs.push(key[2].toLowerCase() + key.slice(3))
}
} else {
extraAttrs.push(key)
}
}
Eif (extraAttrs.length) {
warn(
`Extraneous non-props attributes (` +
`${extraAttrs.join(', ')}) ` +
`were passed to component but could not be automatically inherited ` +
`because component renders fragment or text or teleport root nodes.`,
)
}
if (eventAttrs.length) {
warn(
`Extraneous non-emits event listeners (` +
`${eventAttrs.join(', ')}) ` +
`were passed to component but could not be automatically inherited ` +
`because component renders fragment or text root nodes. ` +
`If the listener is intended to be a component custom event listener only, ` +
`declare it using the "emits" option.`,
)
}
}
}
}
if (
__COMPAT__ &&
isCompatEnabled(DeprecationTypes.INSTANCE_ATTRS_CLASS_STYLE, instance) &&
vnode.shapeFlag & ShapeFlags.STATEFUL_COMPONENT &&
root.shapeFlag & (ShapeFlags.ELEMENT | ShapeFlags.COMPONENT)
) {
const { class: cls, style } = vnode.props || {}
if (cls || style) {
Eif (__DEV__ && inheritAttrs === false) {
warnDeprecation(
DeprecationTypes.INSTANCE_ATTRS_CLASS_STYLE,
instance,
getComponentName(instance.type),
)
}
root = cloneVNode(
root,
{
class: cls,
style: style,
},
false,
true,
)
}
}
// inherit directives
if (vnode.dirs) {
Iif (__DEV__ && !isElementRoot(root)) {
warn(
`Runtime directive used on component with non-element root node. ` +
`The directives will not function as intended.`,
)
}
// clone before mutating since the root may be a hoisted vnode
root = cloneVNode(root, null, false, true)
root.dirs = root.dirs ? root.dirs.concat(vnode.dirs) : vnode.dirs
}
// inherit transition data
if (vnode.transition) {
const child = isTeleport(root.type) ? getInnerChild(root) || root : root
if (__DEV__ && !isElementRoot(child)) {
warn(
`Component inside <Transition> renders non-element root node ` +
`that cannot be animated.`,
)
}
setTransitionHooks(child, vnode.transition)
}
if (__DEV__ && setRoot) {
setRoot(root)
} else {
result = root
}
setCurrentRenderingInstance(prev)
return result
}
/**
* dev only
* In dev mode, template root level comments are rendered, which turns the
* template into a fragment root, but we need to locate the single element
* root for attrs and scope id processing.
*/
const getChildRoot = (vnode: VNode): [VNode, SetRootFn] => {
const rawChildren = vnode.children as VNodeArrayChildren
const dynamicChildren = vnode.dynamicChildren
const childRoot = filterSingleRoot(rawChildren, false)
Iif (!childRoot) {
return [vnode, undefined]
} else if (
__DEV__ &&
childRoot.patchFlag > 0 &&
childRoot.patchFlag & PatchFlags.DEV_ROOT_FRAGMENT
) {
return getChildRoot(childRoot)
}
const index = rawChildren.indexOf(childRoot)
const dynamicIndex = dynamicChildren ? dynamicChildren.indexOf(childRoot) : -1
const setRoot: SetRootFn = (updatedRoot: VNode) => {
rawChildren[index] = updatedRoot
Eif (dynamicChildren) {
if (dynamicIndex > -1) {
dynamicChildren[dynamicIndex] = updatedRoot
} else if (updatedRoot.patchFlag > 0) {
vnode.dynamicChildren = [...dynamicChildren, updatedRoot]
}
}
}
return [normalizeVNode(childRoot), setRoot]
}
export function filterSingleRoot(
children: VNodeArrayChildren,
recurse = true,
): VNode | undefined {
let singleRoot
for (let i = 0; i < children.length; i++) {
const child = children[i]
if (isVNode(child)) {
// ignore user comment
if (child.type !== Comment || child.children === 'v-if') {
if (singleRoot) {
// has more than 1 non-comment child, return now
return
} else {
singleRoot = child
if (
__DEV__ &&
recurse &&
singleRoot.patchFlag > 0 &&
singleRoot.patchFlag & PatchFlags.DEV_ROOT_FRAGMENT
) {
return filterSingleRoot(singleRoot.children as VNodeArrayChildren)
}
}
}
} else {
return
}
}
return singleRoot
}
const getFunctionalFallthrough = (attrs: Data): Data | undefined => {
let res: Data | undefined
for (const key in attrs) {
if (key === 'class' || key === 'style' || isOn(key)) {
;(res || (res = {}))[key] = attrs[key]
}
}
return res
}
const filterModelListeners = (attrs: Data, props: NormalizedProps): Data => {
const res: Data = {}
for (const key in attrs) {
Iif (!isModelListener(key) || !(key.slice(9) in props)) {
res[key] = attrs[key]
}
}
return res
}
const isElementRoot = (vnode: VNode) => {
return (
vnode.shapeFlag & (ShapeFlags.COMPONENT | ShapeFlags.ELEMENT) ||
vnode.type === Comment // potential v-if branch switch
)
}
export function shouldUpdateComponent(
prevVNode: VNode,
nextVNode: VNode,
optimized?: boolean,
): boolean {
const { props: prevProps, children: prevChildren, component } = prevVNode
const { props: nextProps, children: nextChildren, patchFlag } = nextVNode
const emits = component!.emitsOptions
// Parent component's render function was hot-updated. Since this may have
// caused the child component's slots content to have changed, we need to
// force the child to update as well.
if (__DEV__ && (prevChildren || nextChildren) && isHmrUpdating) {
return true
}
// force child update for runtime directive or transition on component vnode.
if (nextVNode.dirs || nextVNode.transition) {
return true
}
if (optimized && patchFlag >= 0) {
if (patchFlag & PatchFlags.DYNAMIC_SLOTS) {
// slot content that references values that might have changed,
// e.g. in a v-for
return true
}
if (patchFlag & PatchFlags.FULL_PROPS) {
Iif (!prevProps) {
return !!nextProps
}
// presence of this flag indicates props are always non-null
return hasPropsChanged(prevProps, nextProps!, emits)
} else if (patchFlag & PatchFlags.PROPS) {
const dynamicProps = nextVNode.dynamicProps!
for (let i = 0; i < dynamicProps.length; i++) {
const key = dynamicProps[i]
if (
hasPropValueChanged(nextProps!, prevProps!, key) &&
!isEmitListener(emits, key)
) {
return true
}
}
}
} else {
// this path is only taken by manually written render functions
// so presence of any children leads to a forced update
if (prevChildren || nextChildren) {
if (!nextChildren || !(nextChildren as any).$stable) {
return true
}
}
if (prevProps === nextProps) {
return false
}
if (!prevProps) {
return !!nextProps
}
if (!nextProps) {
return true
}
return hasPropsChanged(prevProps, nextProps, emits)
}
return false
}
function hasPropsChanged(
prevProps: Data,
nextProps: Data,
emitsOptions: ComponentInternalInstance['emitsOptions'],
): boolean {
const nextKeys = Object.keys(nextProps)
if (nextKeys.length !== Object.keys(prevProps).length) {
return true
}
for (let i = 0; i < nextKeys.length; i++) {
const key = nextKeys[i]
if (
!hasOwn(prevProps, key) ||
(hasPropValueChanged(nextProps, prevProps, key) &&
!isEmitListener(emitsOptions, key))
) {
return true
}
}
return false
}
function hasPropValueChanged(
nextProps: Data,
prevProps: Data,
key: string,
): boolean {
const nextProp = nextProps[key]
const prevProp = prevProps[key]
if (key === 'style' && isObject(nextProp) && isObject(prevProp)) {
return !looseEqual(nextProp, prevProp)
}
return nextProp !== prevProp
}
export function updateHOCHostEl(
{ vnode, parent, suspense }: ComponentInternalInstance,
el: typeof vnode.el, // HostNode
): void {
while (parent) {
const root = parent.subTree
if (root.suspense && root.suspense.activeBranch === vnode) {
// Suspense proxies its active branch host node, so keep propagating from
// the boundary vnode to any wrapper components above it.
root.suspense.vnode.el = root.el = el
vnode = root
}
if (root === vnode) {
;(vnode = parent.vnode).el = el
parent = parent.parent
} else {
break
}
}
// also update suspense vnode el
if (suspense && suspense.activeBranch === vnode) {
suspense.vnode.el = el
}
}
|