{
  "version": 3,
  "sources": ["../../src/parser/node-utils.ts"],
  "sourcesContent": ["import type {AlternativeContainerNode, Node, ParentNode, QuantifiableNode} from './parse.js';\n\ntype KeysOfUnion<T> = T extends T ? keyof T: never;\ntype Props = {[key in KeysOfUnion<Node>]?: any} & {type?: Node['type']};\n\nfunction hasOnlyChild(node: ParentNode & {body: Array<Node>}, props?: Props): boolean {\n  if (!Array.isArray(node.body)) {\n    throw new Error('Expected node with body array');\n  }\n  if (node.body.length !== 1) {\n    return false;\n  }\n  const kid = node.body[0] as Props;\n  return !props || Object.keys(props).every(key => props[key as keyof Props] === kid[key as keyof Props]);\n}\n\nfunction isAlternativeContainer(node: Node): node is AlternativeContainerNode {\n  if (\n    !alternativeContainerTypes.has(node.type) ||\n    (node.type === 'AbsenceFunction' && node.kind !== 'repeater')\n  ) {\n    return false;\n  }\n  return true;\n}\nconst alternativeContainerTypes = new Set<Node['type']>([\n  'AbsenceFunction',\n  'CapturingGroup',\n  'Group',\n  'LookaroundAssertion',\n  'Regex',\n]);\n\nfunction isQuantifiable(node: Node): node is QuantifiableNode {\n  return quantifiableTypes.has(node.type);\n}\nconst quantifiableTypes = new Set<Node['type']>([\n  'AbsenceFunction',\n  'Backreference',\n  'CapturingGroup',\n  'Character',\n  'CharacterClass',\n  'CharacterSet',\n  'Group',\n  'Quantifier',\n  'Subroutine',\n]);\n\nexport {\n  hasOnlyChild,\n  isAlternativeContainer,\n  isQuantifiable,\n};\n"],
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  "names": ["hasOnlyChild", "node", "props", "kid", "key", "isAlternativeContainer", "alternativeContainerTypes", "isQuantifiable", "quantifiableTypes"]
}