3 KeywordErrorDefinition,
7 import type {KeywordCxt} from "../../compile/validate"
8 import {_, str, Name} from "../../compile/codegen"
9 import {alwaysValidSchema, checkStrictMode, Type} from "../../compile/util"
11 export type ContainsError = ErrorObject<
13 {minContains: number; maxContains?: number},
17 const error: KeywordErrorDefinition = {
18 message: ({params: {min, max}}) =>
20 ? str`must contain at least ${min} valid item(s)`
21 : str`must contain at least ${min} and no more than ${max} valid item(s)`,
22 params: ({params: {min, max}}) =>
23 max === undefined ? _`{minContains: ${min}}` : _`{minContains: ${min}, maxContains: ${max}}`,
26 const def: CodeKeywordDefinition = {
29 schemaType: ["object", "boolean"],
30 before: "uniqueItems",
33 code(cxt: KeywordCxt) {
34 const {gen, schema, parentSchema, data, it} = cxt
36 let max: number | undefined
37 const {minContains, maxContains} = parentSchema
39 min = minContains === undefined ? 1 : minContains
44 const len = gen.const("len", _`${data}.length`)
45 cxt.setParams({min, max})
46 if (max === undefined && min === 0) {
47 checkStrictMode(it, `"minContains" == 0 without "maxContains": "contains" keyword ignored`)
50 if (max !== undefined && min > max) {
51 checkStrictMode(it, `"minContains" > "maxContains" is always invalid`)
55 if (alwaysValidSchema(it, schema)) {
56 let cond = _`${len} >= ${min}`
57 if (max !== undefined) cond = _`${cond} && ${len} <= ${max}`
63 const valid = gen.name("valid")
64 if (max === undefined && min === 1) {
65 validateItems(valid, () => gen.if(valid, () => gen.break()))
66 } else if (min === 0) {
68 if (max !== undefined) gen.if(_`${data}.length > 0`, validateItemsWithCount)
71 validateItemsWithCount()
73 cxt.result(valid, () => cxt.reset())
75 function validateItemsWithCount(): void {
76 const schValid = gen.name("_valid")
77 const count = gen.let("count", 0)
78 validateItems(schValid, () => gen.if(schValid, () => checkLimits(count)))
81 function validateItems(_valid: Name, block: () => void): void {
82 gen.forRange("i", 0, len, (i) => {
87 dataPropType: Type.Num,
96 function checkLimits(count: Name): void {
97 gen.code(_`${count}++`)
98 if (max === undefined) {
99 gen.if(_`${count} >= ${min}`, () => gen.assign(valid, true).break())
101 gen.if(_`${count} > ${max}`, () => gen.assign(valid, false).break())
102 if (min === 1) gen.assign(valid, true)
103 else gen.if(_`${count} >= ${min}`, () => gen.assign(valid, true))