1 | import type {CodeKeywordDefinition, AnySchema, AnySchemaObject} from "../../types"
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2 | import type {KeywordCxt} from "../../compile/validate"
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3 | import {_} from "../../compile/codegen"
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4 | import {alwaysValidSchema, mergeEvaluated, checkStrictMode} from "../../compile/util"
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5 | import {validateArray} from "../code"
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6 |
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7 | const def: CodeKeywordDefinition = {
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8 | keyword: "items",
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9 | type: "array",
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10 | schemaType: ["object", "array", "boolean"],
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11 | before: "uniqueItems",
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12 | code(cxt: KeywordCxt) {
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13 | const {schema, it} = cxt
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14 | if (Array.isArray(schema)) return validateTuple(cxt, "additionalItems", schema)
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15 | it.items = true
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16 | if (alwaysValidSchema(it, schema)) return
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17 | cxt.ok(validateArray(cxt))
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18 | },
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19 | }
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20 |
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21 | export function validateTuple(
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22 | cxt: KeywordCxt,
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23 | extraItems: string,
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24 | schArr: AnySchema[] = cxt.schema
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25 | ): void {
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26 | const {gen, parentSchema, data, keyword, it} = cxt
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27 | checkStrictTuple(parentSchema)
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28 | if (it.opts.unevaluated && schArr.length && it.items !== true) {
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29 | it.items = mergeEvaluated.items(gen, schArr.length, it.items)
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30 | }
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31 | const valid = gen.name("valid")
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32 | const len = gen.const("len", _`${data}.length`)
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33 | schArr.forEach((sch: AnySchema, i: number) => {
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34 | if (alwaysValidSchema(it, sch)) return
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35 | gen.if(_`${len} > ${i}`, () =>
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36 | cxt.subschema(
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37 | {
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38 | keyword,
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39 | schemaProp: i,
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40 | dataProp: i,
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41 | },
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42 | valid
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43 | )
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44 | )
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45 | cxt.ok(valid)
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46 | })
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47 |
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48 | function checkStrictTuple(sch: AnySchemaObject): void {
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49 | const {opts, errSchemaPath} = it
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50 | const l = schArr.length
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51 | const fullTuple = l === sch.minItems && (l === sch.maxItems || sch[extraItems] === false)
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52 | if (opts.strictTuples && !fullTuple) {
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53 | const msg = `"${keyword}" is ${l}-tuple, but minItems or maxItems/${extraItems} are not specified or different at path "${errSchemaPath}"`
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54 | checkStrictMode(it, msg, opts.strictTuples)
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55 | }
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56 | }
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57 | }
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58 |
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59 | export default def
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