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iterateJsdoc from '../iterateJsdoc';\n\nconst defaultTags = {\n  file: {\n    initialCommentsOnly: true,\n    mustExist: true,\n    preventDuplicates: true,\n  },\n};\n\nconst setDefaults = (state) => {\n  // First iteration\n  if (!state.globalTags) {\n    state.globalTags = {};\n    state.hasDuplicates = {};\n    state.hasTag = {};\n    state.hasNonCommentBeforeTag = {};\n  }\n};\n\nexport default iterateJsdoc(({\n  jsdocNode,\n  state,\n  utils,\n  context,\n}) => {\n  const {\n    tags = defaultTags,\n  } = context.options[0] || {};\n\n  setDefaults(state);\n\n  for (const tagName of Object.keys(tags)) {\n    const targetTagName = utils.getPreferredTagName({tagName});\n\n    const hasTag = targetTagName && utils.hasTag(targetTagName);\n\n    state.hasTag[tagName] = hasTag || state.hasTag[tagName];\n\n    const hasDuplicate = state.hasDuplicates[tagName];\n\n    if (hasDuplicate === false) {\n      // Was marked before, so if a tag now, is a dupe\n      state.hasDuplicates[tagName] = hasTag;\n    } else if (!hasDuplicate && hasTag) {\n      // No dupes set before, but has first tag, so change state\n      //   from `undefined` to `false` so can detect next time\n      state.hasDuplicates[tagName] = false;\n      state.hasNonCommentBeforeTag[tagName] = state.hasNonComment &&\n        state.hasNonComment < jsdocNode.range[0];\n    }\n  }\n}, {\n  exit ({context, state, utils}) {\n    setDefaults(state);\n    const {\n      tags = defaultTags,\n    } = context.options[0] || {};\n\n    for (const [tagName, {\n      mustExist = false,\n      preventDuplicates = false,\n      initialCommentsOnly = false,\n    }] of Object.entries(tags)) {\n      const obj = utils.getPreferredTagNameObject({tagName});\n      if (obj && obj.blocked) {\n        utils.reportSettings(\n          `\\`settings.jsdoc.tagNamePreference\\` cannot block @${obj.tagName} ` +\n          'for the `require-file-overview` rule',\n        );\n      } else {\n        const targetTagName = obj && obj.replacement || obj;\n        if (mustExist && !state.hasTag[tagName]) {\n          utils.reportSettings(`Missing @${targetTagName}`);\n        }\n        if (preventDuplicates && state.hasDuplicates[tagName]) {\n          utils.reportSettings(\n            `Duplicate @${targetTagName}`,\n          );\n        }\n        if (initialCommentsOnly &&\n            state.hasNonCommentBeforeTag[tagName]\n        ) {\n          utils.reportSettings(\n            `@${targetTagName} should be at the beginning of the file`,\n          );\n        }\n      }\n    }\n  },\n  iterateAllJsdocs: true,\n  meta: {\n    docs: {\n      description: 'Checks that all files have one `@file`, `@fileoverview`, or `@overview` tag at the beginning of the file.',\n      url: 'https://github.com/gajus/eslint-plugin-jsdoc#eslint-plugin-jsdoc-rules-require-file-overview',\n    },\n    schema: [\n      {\n        additionalProperties: false,\n        properties: {\n          tags: {\n            patternProperties: {\n              '.*': {\n                additionalProperties: false,\n                properties: {\n                  initialCommentsOnly: {\n                    type: 'boolean',\n                  },\n                  mustExist: {\n                    type: 'boolean',\n                  },\n                  preventDuplicates: {\n                    type: 'boolean',\n                  },\n                },\n                type: 'object',\n              },\n            },\n            type: 'object',\n          },\n        },\n        type: 'object',\n      },\n    ],\n    type: 'suggestion',\n  },\n  nonComment ({state, node}) {\n    if (!state.hasNonComment) {\n      state.hasNonComment = node.range[0];\n    }\n  },\n});\n"],"file":"requireFileOverview.js"}