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| Current File : //usr/local/lib/node_modules/serve/node_modules/ajv/lib/vocabularies/jtd/enum.ts |
import type {CodeKeywordDefinition, KeywordErrorDefinition, ErrorObject} from "../../types"
import type {KeywordCxt} from "../../compile/validate"
import {_, or, and, Code} from "../../compile/codegen"
import {checkMetadata} from "./metadata"
import {checkNullable} from "./nullable"
export type JTDEnumError = ErrorObject<"enum", {allowedValues: string[]}, string[]>
const error: KeywordErrorDefinition = {
message: "must be equal to one of the allowed values",
params: ({schemaCode}) => _`{allowedValues: ${schemaCode}}`,
}
const def: CodeKeywordDefinition = {
keyword: "enum",
schemaType: "array",
error,
code(cxt: KeywordCxt) {
checkMetadata(cxt)
const {gen, data, schema, schemaValue, parentSchema, it} = cxt
if (schema.length === 0) throw new Error("enum must have non-empty array")
if (schema.length !== new Set(schema).size) throw new Error("enum items must be unique")
let valid: Code
const isString = _`typeof ${data} == "string"`
if (schema.length >= it.opts.loopEnum) {
let cond: Code
;[valid, cond] = checkNullable(cxt, isString)
gen.if(cond, loopEnum)
} else {
/* istanbul ignore if */
if (!Array.isArray(schema)) throw new Error("ajv implementation error")
valid = and(isString, or(...schema.map((value: string) => _`${data} === ${value}`)))
if (parentSchema.nullable) valid = or(_`${data} === null`, valid)
}
cxt.pass(valid)
function loopEnum(): void {
gen.forOf("v", schemaValue as Code, (v) =>
gen.if(_`${valid} = ${data} === ${v}`, () => gen.break())
)
}
},
}
export default def
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