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110 lines
3.2 KiB
110 lines
3.2 KiB
3 years ago
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import type {
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CodeKeywordDefinition,
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KeywordErrorDefinition,
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ErrorObject,
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AnySchema,
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} from "../../types"
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import type {KeywordCxt} from "../../compile/validate"
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import {_, str, Name} from "../../compile/codegen"
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import {alwaysValidSchema, checkStrictMode, Type} from "../../compile/util"
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export type ContainsError = ErrorObject<
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"contains",
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{minContains: number; maxContains?: number},
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AnySchema
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>
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const error: KeywordErrorDefinition = {
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message: ({params: {min, max}}) =>
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max === undefined
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? str`must contain at least ${min} valid item(s)`
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: str`must contain at least ${min} and no more than ${max} valid item(s)`,
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params: ({params: {min, max}}) =>
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max === undefined ? _`{minContains: ${min}}` : _`{minContains: ${min}, maxContains: ${max}}`,
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}
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const def: CodeKeywordDefinition = {
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keyword: "contains",
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type: "array",
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schemaType: ["object", "boolean"],
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before: "uniqueItems",
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trackErrors: true,
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error,
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code(cxt: KeywordCxt) {
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const {gen, schema, parentSchema, data, it} = cxt
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let min: number
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let max: number | undefined
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const {minContains, maxContains} = parentSchema
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if (it.opts.next) {
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min = minContains === undefined ? 1 : minContains
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max = maxContains
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} else {
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min = 1
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}
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const len = gen.const("len", _`${data}.length`)
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cxt.setParams({min, max})
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if (max === undefined && min === 0) {
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checkStrictMode(it, `"minContains" == 0 without "maxContains": "contains" keyword ignored`)
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return
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}
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if (max !== undefined && min > max) {
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checkStrictMode(it, `"minContains" > "maxContains" is always invalid`)
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cxt.fail()
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return
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}
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if (alwaysValidSchema(it, schema)) {
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let cond = _`${len} >= ${min}`
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if (max !== undefined) cond = _`${cond} && ${len} <= ${max}`
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cxt.pass(cond)
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return
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}
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it.items = true
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const valid = gen.name("valid")
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if (max === undefined && min === 1) {
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validateItems(valid, () => gen.if(valid, () => gen.break()))
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} else if (min === 0) {
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gen.let(valid, true)
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if (max !== undefined) gen.if(_`${data}.length > 0`, validateItemsWithCount)
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} else {
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gen.let(valid, false)
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validateItemsWithCount()
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}
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cxt.result(valid, () => cxt.reset())
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function validateItemsWithCount(): void {
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const schValid = gen.name("_valid")
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const count = gen.let("count", 0)
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validateItems(schValid, () => gen.if(schValid, () => checkLimits(count)))
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}
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function validateItems(_valid: Name, block: () => void): void {
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gen.forRange("i", 0, len, (i) => {
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cxt.subschema(
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{
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keyword: "contains",
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dataProp: i,
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dataPropType: Type.Num,
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compositeRule: true,
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},
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_valid
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)
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block()
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})
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}
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function checkLimits(count: Name): void {
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gen.code(_`${count}++`)
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if (max === undefined) {
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gen.if(_`${count} >= ${min}`, () => gen.assign(valid, true).break())
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} else {
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gen.if(_`${count} > ${max}`, () => gen.assign(valid, false).break())
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if (min === 1) gen.assign(valid, true)
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else gen.if(_`${count} >= ${min}`, () => gen.assign(valid, true))
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}
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}
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},
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}
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export default def
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