{"version":3,"file":"vnode.mjs","sources":["../../../../../packages/utils/vue/vnode.ts"],"sourcesContent":["import {\n  Comment,\n  Fragment,\n  Text,\n  createBlock,\n  createCommentVNode,\n  isVNode,\n  openBlock,\n} from 'vue'\nimport { camelize } from '../strings'\nimport { isArray } from '../types'\nimport { hasOwn } from '../objects'\nimport { debugWarn } from '../error'\nimport type {\n  VNode,\n  VNodeArrayChildren,\n  VNodeChild,\n  VNodeNormalizedChildren,\n} from 'vue'\n\nconst SCOPE = 'utils/vue/vnode'\n\nexport enum PatchFlags {\n  TEXT = 1,\n  CLASS = 2,\n  STYLE = 4,\n  PROPS = 8,\n  FULL_PROPS = 16,\n  HYDRATE_EVENTS = 32,\n  STABLE_FRAGMENT = 64,\n  KEYED_FRAGMENT = 128,\n  UNKEYED_FRAGMENT = 256,\n  NEED_PATCH = 512,\n  DYNAMIC_SLOTS = 1024,\n  HOISTED = -1,\n  BAIL = -2,\n}\n\nexport type VNodeChildAtom = Exclude<VNodeChild, Array<any>>\nexport type RawSlots = Exclude<\n  VNodeNormalizedChildren,\n  Array<any> | null | string\n>\n\nexport function isFragment(node: VNode): boolean\nexport function isFragment(node: unknown): node is VNode\nexport function isFragment(node: unknown): node is VNode {\n  return isVNode(node) && node.type === Fragment\n}\n\nexport function isText(node: VNode): boolean\nexport function isText(node: unknown): node is VNode\nexport function isText(node: unknown): node is VNode {\n  return isVNode(node) && node.type === Text\n}\n\nexport function isComment(node: VNode): boolean\nexport function isComment(node: unknown): node is VNode\nexport function isComment(node: unknown): node is VNode {\n  return isVNode(node) && node.type === Comment\n}\n\nconst TEMPLATE = 'template'\nexport function isTemplate(node: VNode): boolean\nexport function isTemplate(node: unknown): node is VNode\nexport function isTemplate(node: unknown): node is VNode {\n  return isVNode(node) && node.type === TEMPLATE\n}\n\n/**\n * determine if the element is a valid element type rather than fragments and comment e.g. <template> v-if\n * @param node {VNode} node to be tested\n */\nexport function isValidElementNode(node: VNode): boolean\nexport function isValidElementNode(node: unknown): node is VNode\nexport function isValidElementNode(node: unknown): node is VNode {\n  return isVNode(node) && !isFragment(node) && !isComment(node)\n}\n\n/**\n * get a valid child node (not fragment nor comment)\n * @param node {VNode} node to be searched\n * @param depth {number} depth to be searched\n */\nfunction getChildren(\n  node: VNodeNormalizedChildren | VNodeChild,\n  depth: number\n): VNodeNormalizedChildren | VNodeChild {\n  if (isComment(node)) return\n  if (isFragment(node) || isTemplate(node)) {\n    return depth > 0 ? getFirstValidNode(node.children, depth - 1) : undefined\n  }\n  return node\n}\n\nexport const getFirstValidNode = (\n  nodes: VNodeNormalizedChildren,\n  maxDepth = 3\n) => {\n  if (Array.isArray(nodes)) {\n    return getChildren(nodes[0], maxDepth)\n  } else {\n    return getChildren(nodes, maxDepth)\n  }\n}\n\nexport function renderIf(\n  condition: boolean,\n  ...args: Parameters<typeof createBlock>\n) {\n  return condition ? renderBlock(...args) : createCommentVNode('v-if', true)\n}\n\nexport function renderBlock(...args: Parameters<typeof createBlock>) {\n  return openBlock(), createBlock(...args)\n}\n\nexport const getNormalizedProps = (node: VNode) => {\n  if (!isVNode(node)) {\n    debugWarn(SCOPE, '[getNormalizedProps] must be a VNode')\n    return {}\n  }\n\n  const raw = node.props || {}\n  const type = (isVNode(node.type) ? node.type.props : undefined) || {}\n  const props: Record<string, any> = {}\n\n  Object.keys(type).forEach((key) => {\n    if (hasOwn(type[key], 'default')) {\n      props[key] = type[key].default\n    }\n  })\n\n  Object.keys(raw).forEach((key) => {\n    props[camelize(key)] = raw[key]\n  })\n\n  return props\n}\n\nexport const ensureOnlyChild = (children: VNodeArrayChildren | undefined) => {\n  if (!isArray(children) || children.length > 1) {\n    throw new Error('expect to receive a single Vue element child')\n  }\n  return children[0]\n}\n\nexport type FlattenVNodes = Array<VNodeChildAtom | RawSlots>\n\nexport const flattedChildren = (\n  children: FlattenVNodes | VNode | VNodeNormalizedChildren\n): FlattenVNodes => {\n  const vNodes = isArray(children) ? 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