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1{"version":3,"file":"token-lists.cjs.production.min.js","sources":["../src/getVersionUpgrade.ts","../src/versionComparator.ts","../src/diffTokenLists.ts","../src/isVersionUpdate.ts","../src/minVersionBump.ts","../src/nextVersion.ts"],"sourcesContent":["/**\n * Enum describing types of version differences\n */\nimport { Version } from './types';\n\nexport enum VersionUpgrade {\n NONE,\n PATCH,\n MINOR,\n MAJOR,\n}\n\n/**\n * Return the upgrade type from the base version to the update version.\n * Note that downgrades and equivalent versions are both treated as `NONE`.\n * @param base base list\n * @param update update to the list\n */\nexport function getVersionUpgrade(\n base: Version,\n update: Version\n): VersionUpgrade {\n if (update.major > base.major) {\n return VersionUpgrade.MAJOR;\n }\n if (update.major < base.major) {\n return VersionUpgrade.NONE;\n }\n if (update.minor > base.minor) {\n return VersionUpgrade.MINOR;\n }\n if (update.minor < base.minor) {\n return VersionUpgrade.NONE;\n }\n return update.patch > base.patch ? VersionUpgrade.PATCH : VersionUpgrade.NONE;\n}\n","import { Version } from './types';\n\n/**\n * Comparator function that allows sorting version from lowest to highest\n * @param versionA version A to compare\n * @param versionB version B to compare\n * @returns -1 if versionA comes before versionB, 0 if versionA is equal to version B, and 1 if version A comes after version B\n */\nexport function versionComparator(\n versionA: Version,\n versionB: Version\n): -1 | 0 | 1 {\n if (versionA.major < versionB.major) {\n return -1;\n } else if (versionA.major > versionB.major) {\n return 1;\n } else if (versionA.minor < versionB.minor) {\n return -1;\n } else if (versionA.minor > versionB.minor) {\n return 1;\n } else if (versionA.patch < versionB.patch) {\n return -1;\n } else if (versionA.patch > versionB.patch) {\n return 1;\n } else {\n return 0;\n }\n}\n","import { TokenInfo } from './types';\n\nexport type TokenInfoChangeKey = Exclude<\n keyof TokenInfo,\n 'address' | 'chainId'\n>;\nexport type TokenInfoChanges = Array<TokenInfoChangeKey>;\n\n/**\n * compares two token info key values\n * this subset of full deep equal functionality does not work on objects or object arrays\n * @param a comparison item a\n * @param b comparison item b\n */\nfunction compareTokenInfoProperty(a: unknown, b: unknown): boolean {\n if (a === b) return true;\n if (typeof a !== typeof b) return false;\n if (Array.isArray(a) && Array.isArray(b)) {\n return a.every((el, i) => b[i] === el);\n }\n return false;\n}\n\n/**\n * Differences between a base list and an updated list.\n */\nexport interface TokenListDiff {\n /**\n * Tokens from updated with chainId/address not present in base list\n */\n readonly added: TokenInfo[];\n /**\n * Tokens from base with chainId/address not present in the updated list\n */\n readonly removed: TokenInfo[];\n /**\n * The token info that changed\n */\n readonly changed: {\n [chainId: number]: {\n [address: string]: TokenInfoChanges;\n };\n };\n}\n\n/**\n * Computes the diff of a token list where the first argument is the base and the second argument is the updated list.\n * @param base base list\n * @param update updated list\n */\nexport function diffTokenLists(\n base: TokenInfo[],\n update: TokenInfo[]\n): TokenListDiff {\n const indexedBase = base.reduce<{\n [chainId: number]: { [address: string]: TokenInfo };\n }>((memo, tokenInfo) => {\n if (!memo[tokenInfo.chainId]) memo[tokenInfo.chainId] = {};\n memo[tokenInfo.chainId][tokenInfo.address] = tokenInfo;\n return memo;\n }, {});\n\n const newListUpdates = update.reduce<{\n added: TokenInfo[];\n changed: {\n [chainId: number]: {\n [address: string]: TokenInfoChanges;\n };\n };\n index: {\n [chainId: number]: {\n [address: string]: true;\n };\n };\n }>(\n (memo, tokenInfo) => {\n const baseToken = indexedBase[tokenInfo.chainId]?.[tokenInfo.address];\n if (!baseToken) {\n memo.added.push(tokenInfo);\n } else {\n const changes: TokenInfoChanges = Object.keys(tokenInfo)\n .filter(\n (s): s is TokenInfoChangeKey => s !== 'address' && s !== 'chainId'\n )\n .filter(s => {\n return !compareTokenInfoProperty(tokenInfo[s], baseToken[s]);\n });\n if (changes.length > 0) {\n if (!memo.changed[tokenInfo.chainId]) {\n memo.changed[tokenInfo.chainId] = {};\n }\n memo.changed[tokenInfo.chainId][tokenInfo.address] = changes;\n }\n }\n\n if (!memo.index[tokenInfo.chainId]) {\n memo.index[tokenInfo.chainId] = {\n [tokenInfo.address]: true,\n };\n } else {\n memo.index[tokenInfo.chainId][tokenInfo.address] = true;\n }\n\n return memo;\n },\n { added: [], changed: {}, index: {} }\n );\n\n const removed = base.reduce<TokenInfo[]>((list, curr) => {\n if (\n !newListUpdates.index[curr.chainId] ||\n !newListUpdates.index[curr.chainId][curr.address]\n ) {\n list.push(curr);\n }\n return list;\n }, []);\n\n return {\n added: newListUpdates.added,\n changed: newListUpdates.changed,\n removed,\n };\n}\n","import { versionComparator } from './versionComparator';\nimport { Version } from './types';\n\n/**\n * Returns true if versionB is an update over versionA\n */\nexport function isVersionUpdate(base: Version, update: Version): boolean {\n return versionComparator(base, update) < 0;\n}\n","import { diffTokenLists } from './diffTokenLists';\nimport { VersionUpgrade } from './getVersionUpgrade';\nimport { TokenInfo } from './types';\n\n/**\n * Returns the minimum version bump for the given list\n * @param baseList the base list of tokens\n * @param updatedList the updated list of tokens\n */\nexport function minVersionBump(\n baseList: TokenInfo[],\n updatedList: TokenInfo[]\n): VersionUpgrade {\n const diff = diffTokenLists(baseList, updatedList);\n if (diff.removed.length > 0) return VersionUpgrade.MAJOR;\n if (diff.added.length > 0) return VersionUpgrade.MINOR;\n if (Object.keys(diff.changed).length > 0) return VersionUpgrade.PATCH;\n return VersionUpgrade.NONE;\n}\n","import { VersionUpgrade } from './getVersionUpgrade';\nimport { Version } from './types';\n\n/**\n * Returns the next version of the list given a base version and the upgrade type\n * @param base current version\n * @param bump the upgrade type\n */\nexport function nextVersion(base: Version, bump: VersionUpgrade): Version {\n switch (bump) {\n case VersionUpgrade.NONE:\n return base;\n\n case VersionUpgrade.MAJOR:\n return { major: base.major + 1, minor: 0, patch: 0 };\n\n case VersionUpgrade.MINOR:\n return {\n major: base.major,\n minor: base.minor + 1,\n patch: 0,\n };\n\n case VersionUpgrade.PATCH:\n return {\n major: base.major,\n minor: base.minor,\n patch: base.patch + 1,\n };\n 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