A
arktype•2mo ago
Genshii

Record with specific keys?

I'm trying to do the following: 
import { ScanReportSchema } from "{redacted}"

const SCAN_REPORT_NAME_MAP = {
  "gemnasium-dependency-scanning-report": "Dependency Scanning",
  "gemnasium-maven-dependency-scanning-report": "Maven Dependency Scanning",
  "gl-secret-detection-report": "Secret Detection",
  "gl-sast-report": "SAST",
} as const
type ScanReportName = keyof typeof SCAN_REPORT_NAME_MAP
const SCAN_REPORT_NAMES = Object.keys(SCAN_REPORT_NAME_MAP) as ScanReportName[]
const ScanReportNameSchema = type.enumerated(...SCAN_REPORT_NAMES)

// throws error
const ScanReportsSchema = type.Record(ScanReportNameSchema, ScanReportSchema)
import { ScanReportSchema } from "{redacted}"

const SCAN_REPORT_NAME_MAP = {
  "gemnasium-dependency-scanning-report": "Dependency Scanning",
  "gemnasium-maven-dependency-scanning-report": "Maven Dependency Scanning",
  "gl-secret-detection-report": "Secret Detection",
  "gl-sast-report": "SAST",
} as const
type ScanReportName = keyof typeof SCAN_REPORT_NAME_MAP
const SCAN_REPORT_NAMES = Object.keys(SCAN_REPORT_NAME_MAP) as ScanReportName[]
const ScanReportNameSchema = type.enumerated(...SCAN_REPORT_NAMES)

// throws error
const ScanReportsSchema = type.Record(ScanReportNameSchema, ScanReportSchema)
But understandably I can't provide a type.Record specific keys. 
ParseError: Index keys "gemnasium-dependency-scanning-report", "gemnasium-maven-dependency-scanning-report", "gl-sast-report", "gl-secret-detection-report" should be specified as named props.
ParseError: Index keys "gemnasium-dependency-scanning-report", "gemnasium-maven-dependency-scanning-report", "gl-sast-report", "gl-secret-detection-report" should be specified as named props.
I know I need to define an object with specific keys, but is there a way to somehow create this object without having to redeclare the same keys? Or I guess to ask this in a different way, is there an easy way to create a type where the object has specific keys, but the value for each key is exactly the same? ScanReportsSchema has specific keys, but the values of those keys is always ScanReportSchema.
2 Replies
Genshii
GenshiiOP•2mo ago
Oh apparently I didn't search hard enough: https://discord.com/channels/957797212103016458/1310628677561618513 Object.fromEntries it is :(
ssalbdivad
ssalbdivad•2mo ago
Actually, in a lot of other cases we can just normalize this, and we'd like to do it here as well. It's just a side-effect of the current design that this doesn't work: https://github.com/arktypeio/arktype/issues/952
GitHub
Allow index node to be parsed from enumerable keys · Issue #952 · a...
Currently, an index signature including a literal key like "a" is an error due to some limitations of how the parser is implemented. There is a normalizeIndexKey function, but it is not u...

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