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feature(zod): extracted the object/array parsing logic, used by `proj…
…ect`
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scottrippey
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Jan 23, 2024
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111 changes: 111 additions & 0 deletions
111
packages/groq-builder/src/validation/simple-validation.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| import { | ||
| InferParserInput, | ||
| InferParserOutput, | ||
| ParserFunction, | ||
| } from "../types/public-types"; | ||
| import { ValidationErrors } from "./validation-errors"; | ||
| import { Simplify } from "../types/utils"; | ||
| import { normalizeValidationFunction } from "../commands/validate-utils"; | ||
| import { ObjectValidationMap } from "./lite/object-shape"; | ||
|
|
||
| /** | ||
| * Pretty-prints the value | ||
| */ | ||
| export function inspect(value: unknown): string { | ||
| if (value) { | ||
| if (Array.isArray(value)) return "an array"; | ||
| if (typeof value === "object") return "an object"; | ||
| } | ||
| return JSON.stringify(value); | ||
| } | ||
|
|
||
| export function simpleArrayParser<TItemInput, TItemOutput>( | ||
| itemParser: null | ParserFunction<TItemInput, TItemOutput> | ||
| ): ParserFunction<Array<TItemInput>, Array<TItemOutput>> { | ||
| if (!itemParser) { | ||
| return (input) => { | ||
| if (!Array.isArray(input)) { | ||
| throw new TypeError(`Expected an array, received ${inspect(input)}`); | ||
| } | ||
| return input as unknown as Array<TItemOutput>; | ||
| }; | ||
| } | ||
|
|
||
| return (input) => { | ||
| if (!Array.isArray(input)) { | ||
| throw new TypeError(`Expected an array, received ${inspect(input)}`); | ||
| } | ||
|
|
||
| const validationErrors = new ValidationErrors(); | ||
| const results = input.map((value, i) => { | ||
| try { | ||
| return itemParser(value); | ||
| } catch (err) { | ||
| validationErrors.add(`[${i}]`, value, err as Error); | ||
| return null as never; | ||
| } | ||
| }); | ||
|
|
||
| if (validationErrors.length) throw validationErrors; | ||
|
|
||
| return results; | ||
| }; | ||
| } | ||
|
|
||
| export function simpleObjectParser<TMap extends ObjectValidationMap>( | ||
| objectMapper?: TMap | ||
| ): ParserFunction< | ||
| Simplify<{ | ||
| [P in keyof TMap]: TMap[P] extends {} | ||
| ? // | ||
| InferParserInput<TMap[P]> | ||
| : unknown; | ||
| }>, | ||
| Simplify<{ | ||
| [P in keyof TMap]: TMap[P] extends {} | ||
| ? // | ||
| InferParserOutput<TMap[P]> | ||
| : unknown; | ||
| }> | ||
| > { | ||
| if (!objectMapper) { | ||
| return (input: unknown) => { | ||
| if (input === null || typeof input !== "object") { | ||
| throw new TypeError(`Expected an object, received ${inspect(input)}`); | ||
| } | ||
| return input as any; | ||
| }; | ||
| } | ||
|
|
||
| const keys = Object.keys(objectMapper) as Array<string>; | ||
| const entries = keys.map( | ||
| (key) => | ||
| [ | ||
| key, | ||
| normalizeValidationFunction( | ||
| objectMapper[key as keyof typeof objectMapper] | ||
| ), | ||
| ] as const | ||
| ); | ||
|
|
||
| return (input) => { | ||
| if (input === null || typeof input !== "object") { | ||
| throw new TypeError(`Expected an object, received ${inspect(input)}`); | ||
| } | ||
|
|
||
| const validationErrors = new ValidationErrors(); | ||
|
|
||
| const result: any = {}; | ||
| for (const [key, parser] of entries) { | ||
| const value = input[key as keyof typeof input]; | ||
| try { | ||
| result[key] = parser ? parser(value) : value; | ||
| } catch (err) { | ||
| validationErrors.add(key, value, err as Error); | ||
| } | ||
| } | ||
|
|
||
| if (validationErrors.length) throw validationErrors; | ||
| return result; | ||
| }; | ||
| } |