574 lines
19 KiB
TypeScript
574 lines
19 KiB
TypeScript
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import type {
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AddedKeywordDefinition,
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AnySchema,
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AnySchemaObject,
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KeywordErrorCxt,
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KeywordCxtParams,
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} from "../../types"
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import type {SchemaCxt, SchemaObjCxt} from ".."
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import type {InstanceOptions} from "../../core"
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import {boolOrEmptySchema, topBoolOrEmptySchema} from "./boolSchema"
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import {coerceAndCheckDataType, getSchemaTypes} from "./dataType"
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import {shouldUseGroup, shouldUseRule} from "./applicability"
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import {checkDataType, checkDataTypes, reportTypeError, DataType} from "./dataType"
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import {assignDefaults} from "./defaults"
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import {funcKeywordCode, macroKeywordCode, validateKeywordUsage, validSchemaType} from "./keyword"
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import {getSubschema, extendSubschemaData, SubschemaArgs, extendSubschemaMode} from "./subschema"
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import {_, nil, str, or, not, getProperty, Block, Code, Name, CodeGen} from "../codegen"
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import N from "../names"
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import {resolveUrl} from "../resolve"
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import {
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schemaRefOrVal,
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schemaHasRulesButRef,
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checkUnknownRules,
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checkStrictMode,
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unescapeJsonPointer,
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mergeEvaluated,
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} from "../util"
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import type {JSONType, Rule, RuleGroup} from "../rules"
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import {
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ErrorPaths,
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reportError,
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reportExtraError,
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resetErrorsCount,
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keyword$DataError,
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} from "../errors"
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// schema compilation - generates validation function, subschemaCode (below) is used for subschemas
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export function validateFunctionCode(it: SchemaCxt): void {
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if (isSchemaObj(it)) {
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checkKeywords(it)
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if (schemaCxtHasRules(it)) {
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topSchemaObjCode(it)
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return
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}
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}
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validateFunction(it, () => topBoolOrEmptySchema(it))
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}
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function validateFunction(
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{gen, validateName, schema, schemaEnv, opts}: SchemaCxt,
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body: Block
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): void {
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if (opts.code.es5) {
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gen.func(validateName, _`${N.data}, ${N.valCxt}`, schemaEnv.$async, () => {
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gen.code(_`"use strict"; ${funcSourceUrl(schema, opts)}`)
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destructureValCxtES5(gen, opts)
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gen.code(body)
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})
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} else {
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gen.func(validateName, _`${N.data}, ${destructureValCxt(opts)}`, schemaEnv.$async, () =>
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gen.code(funcSourceUrl(schema, opts)).code(body)
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)
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}
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}
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function destructureValCxt(opts: InstanceOptions): Code {
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return _`{${N.instancePath}="", ${N.parentData}, ${N.parentDataProperty}, ${N.rootData}=${
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N.data
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}${opts.dynamicRef ? _`, ${N.dynamicAnchors}={}` : nil}}={}`
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}
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function destructureValCxtES5(gen: CodeGen, opts: InstanceOptions): void {
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gen.if(
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N.valCxt,
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() => {
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gen.var(N.instancePath, _`${N.valCxt}.${N.instancePath}`)
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gen.var(N.parentData, _`${N.valCxt}.${N.parentData}`)
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gen.var(N.parentDataProperty, _`${N.valCxt}.${N.parentDataProperty}`)
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gen.var(N.rootData, _`${N.valCxt}.${N.rootData}`)
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if (opts.dynamicRef) gen.var(N.dynamicAnchors, _`${N.valCxt}.${N.dynamicAnchors}`)
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},
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() => {
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gen.var(N.instancePath, _`""`)
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gen.var(N.parentData, _`undefined`)
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gen.var(N.parentDataProperty, _`undefined`)
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gen.var(N.rootData, N.data)
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if (opts.dynamicRef) gen.var(N.dynamicAnchors, _`{}`)
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}
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)
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}
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function topSchemaObjCode(it: SchemaObjCxt): void {
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const {schema, opts, gen} = it
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validateFunction(it, () => {
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if (opts.$comment && schema.$comment) commentKeyword(it)
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checkNoDefault(it)
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gen.let(N.vErrors, null)
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gen.let(N.errors, 0)
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if (opts.unevaluated) resetEvaluated(it)
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typeAndKeywords(it)
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returnResults(it)
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})
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return
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}
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function resetEvaluated(it: SchemaObjCxt): void {
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// TODO maybe some hook to execute it in the end to check whether props/items are Name, as in assignEvaluated
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const {gen, validateName} = it
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it.evaluated = gen.const("evaluated", _`${validateName}.evaluated`)
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gen.if(_`${it.evaluated}.dynamicProps`, () => gen.assign(_`${it.evaluated}.props`, _`undefined`))
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gen.if(_`${it.evaluated}.dynamicItems`, () => gen.assign(_`${it.evaluated}.items`, _`undefined`))
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}
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function funcSourceUrl(schema: AnySchema, opts: InstanceOptions): Code {
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const schId = typeof schema == "object" && schema[opts.schemaId]
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return schId && (opts.code.source || opts.code.process) ? _`/*# sourceURL=${schId} */` : nil
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}
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// schema compilation - this function is used recursively to generate code for sub-schemas
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function subschemaCode(it: SchemaCxt, valid: Name): void {
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if (isSchemaObj(it)) {
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checkKeywords(it)
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if (schemaCxtHasRules(it)) {
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subSchemaObjCode(it, valid)
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return
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}
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}
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boolOrEmptySchema(it, valid)
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}
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function schemaCxtHasRules({schema, self}: SchemaCxt): boolean {
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if (typeof schema == "boolean") return !schema
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for (const key in schema) if (self.RULES.all[key]) return true
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return false
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}
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function isSchemaObj(it: SchemaCxt): it is SchemaObjCxt {
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return typeof it.schema != "boolean"
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}
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function subSchemaObjCode(it: SchemaObjCxt, valid: Name): void {
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const {schema, gen, opts} = it
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if (opts.$comment && schema.$comment) commentKeyword(it)
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updateContext(it)
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checkAsyncSchema(it)
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const errsCount = gen.const("_errs", N.errors)
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typeAndKeywords(it, errsCount)
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// TODO var
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gen.var(valid, _`${errsCount} === ${N.errors}`)
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}
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function checkKeywords(it: SchemaObjCxt): void {
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checkUnknownRules(it)
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checkRefsAndKeywords(it)
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}
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function typeAndKeywords(it: SchemaObjCxt, errsCount?: Name): void {
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if (it.opts.jtd) return schemaKeywords(it, [], false, errsCount)
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const types = getSchemaTypes(it.schema)
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const checkedTypes = coerceAndCheckDataType(it, types)
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schemaKeywords(it, types, !checkedTypes, errsCount)
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}
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function checkRefsAndKeywords(it: SchemaObjCxt): void {
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const {schema, errSchemaPath, opts, self} = it
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if (schema.$ref && opts.ignoreKeywordsWithRef && schemaHasRulesButRef(schema, self.RULES)) {
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self.logger.warn(`$ref: keywords ignored in schema at path "${errSchemaPath}"`)
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}
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}
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function checkNoDefault(it: SchemaObjCxt): void {
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const {schema, opts} = it
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if (schema.default !== undefined && opts.useDefaults && opts.strictSchema) {
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checkStrictMode(it, "default is ignored in the schema root")
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}
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}
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function updateContext(it: SchemaObjCxt): void {
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const schId = it.schema[it.opts.schemaId]
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if (schId) it.baseId = resolveUrl(it.opts.uriResolver, it.baseId, schId)
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}
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function checkAsyncSchema(it: SchemaObjCxt): void {
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if (it.schema.$async && !it.schemaEnv.$async) throw new Error("async schema in sync schema")
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}
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function commentKeyword({gen, schemaEnv, schema, errSchemaPath, opts}: SchemaObjCxt): void {
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const msg = schema.$comment
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if (opts.$comment === true) {
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gen.code(_`${N.self}.logger.log(${msg})`)
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} else if (typeof opts.$comment == "function") {
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const schemaPath = str`${errSchemaPath}/$comment`
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const rootName = gen.scopeValue("root", {ref: schemaEnv.root})
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gen.code(_`${N.self}.opts.$comment(${msg}, ${schemaPath}, ${rootName}.schema)`)
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}
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}
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function returnResults(it: SchemaCxt): void {
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const {gen, schemaEnv, validateName, ValidationError, opts} = it
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if (schemaEnv.$async) {
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// TODO assign unevaluated
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gen.if(
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_`${N.errors} === 0`,
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() => gen.return(N.data),
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() => gen.throw(_`new ${ValidationError as Name}(${N.vErrors})`)
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)
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} else {
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gen.assign(_`${validateName}.errors`, N.vErrors)
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if (opts.unevaluated) assignEvaluated(it)
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gen.return(_`${N.errors} === 0`)
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}
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}
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function assignEvaluated({gen, evaluated, props, items}: SchemaCxt): void {
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if (props instanceof Name) gen.assign(_`${evaluated}.props`, props)
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if (items instanceof Name) gen.assign(_`${evaluated}.items`, items)
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}
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function schemaKeywords(
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it: SchemaObjCxt,
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types: JSONType[],
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typeErrors: boolean,
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errsCount?: Name
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): void {
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const {gen, schema, data, allErrors, opts, self} = it
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const {RULES} = self
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if (schema.$ref && (opts.ignoreKeywordsWithRef || !schemaHasRulesButRef(schema, RULES))) {
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gen.block(() => keywordCode(it, "$ref", (RULES.all.$ref as Rule).definition)) // TODO typecast
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return
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}
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if (!opts.jtd) checkStrictTypes(it, types)
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gen.block(() => {
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for (const group of RULES.rules) groupKeywords(group)
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groupKeywords(RULES.post)
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})
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function groupKeywords(group: RuleGroup): void {
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if (!shouldUseGroup(schema, group)) return
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if (group.type) {
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gen.if(checkDataType(group.type, data, opts.strictNumbers))
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iterateKeywords(it, group)
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if (types.length === 1 && types[0] === group.type && typeErrors) {
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gen.else()
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reportTypeError(it)
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}
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gen.endIf()
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} else {
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iterateKeywords(it, group)
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}
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// TODO make it "ok" call?
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if (!allErrors) gen.if(_`${N.errors} === ${errsCount || 0}`)
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}
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}
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function iterateKeywords(it: SchemaObjCxt, group: RuleGroup): void {
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const {
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gen,
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schema,
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opts: {useDefaults},
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} = it
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if (useDefaults) assignDefaults(it, group.type)
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gen.block(() => {
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for (const rule of group.rules) {
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if (shouldUseRule(schema, rule)) {
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keywordCode(it, rule.keyword, rule.definition, group.type)
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}
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}
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})
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}
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function checkStrictTypes(it: SchemaObjCxt, types: JSONType[]): void {
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if (it.schemaEnv.meta || !it.opts.strictTypes) return
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checkContextTypes(it, types)
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if (!it.opts.allowUnionTypes) checkMultipleTypes(it, types)
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checkKeywordTypes(it, it.dataTypes)
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}
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function checkContextTypes(it: SchemaObjCxt, types: JSONType[]): void {
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if (!types.length) return
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if (!it.dataTypes.length) {
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it.dataTypes = types
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return
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}
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types.forEach((t) => {
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if (!includesType(it.dataTypes, t)) {
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strictTypesError(it, `type "${t}" not allowed by context "${it.dataTypes.join(",")}"`)
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}
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})
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it.dataTypes = it.dataTypes.filter((t) => includesType(types, t))
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}
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function checkMultipleTypes(it: SchemaObjCxt, ts: JSONType[]): void {
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if (ts.length > 1 && !(ts.length === 2 && ts.includes("null"))) {
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strictTypesError(it, "use allowUnionTypes to allow union type keyword")
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}
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}
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function checkKeywordTypes(it: SchemaObjCxt, ts: JSONType[]): void {
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const rules = it.self.RULES.all
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for (const keyword in rules) {
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const rule = rules[keyword]
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if (typeof rule == "object" && shouldUseRule(it.schema, rule)) {
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const {type} = rule.definition
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if (type.length && !type.some((t) => hasApplicableType(ts, t))) {
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strictTypesError(it, `missing type "${type.join(",")}" for keyword "${keyword}"`)
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}
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}
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}
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}
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function hasApplicableType(schTs: JSONType[], kwdT: JSONType): boolean {
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return schTs.includes(kwdT) || (kwdT === "number" && schTs.includes("integer"))
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}
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function includesType(ts: JSONType[], t: JSONType): boolean {
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return ts.includes(t) || (t === "integer" && ts.includes("number"))
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}
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function strictTypesError(it: SchemaObjCxt, msg: string): void {
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const schemaPath = it.schemaEnv.baseId + it.errSchemaPath
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msg += ` at "${schemaPath}" (strictTypes)`
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checkStrictMode(it, msg, it.opts.strictTypes)
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}
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export class KeywordCxt implements KeywordErrorCxt {
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readonly gen: CodeGen
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readonly allErrors?: boolean
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readonly keyword: string
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readonly data: Name // Name referencing the current level of the data instance
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readonly $data?: string | false
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schema: any // keyword value in the schema
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readonly schemaValue: Code | number | boolean // Code reference to keyword schema value or primitive value
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readonly schemaCode: Code | number | boolean // Code reference to resolved schema value (different if schema is $data)
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readonly schemaType: JSONType[] // allowed type(s) of keyword value in the schema
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readonly parentSchema: AnySchemaObject
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readonly errsCount?: Name // Name reference to the number of validation errors collected before this keyword,
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// requires option trackErrors in keyword definition
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params: KeywordCxtParams // object to pass parameters to error messages from keyword code
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readonly it: SchemaObjCxt // schema compilation context (schema is guaranteed to be an object, not boolean)
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readonly def: AddedKeywordDefinition
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constructor(it: SchemaObjCxt, def: AddedKeywordDefinition, keyword: string) {
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validateKeywordUsage(it, def, keyword)
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this.gen = it.gen
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this.allErrors = it.allErrors
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this.keyword = keyword
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this.data = it.data
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this.schema = it.schema[keyword]
|
||
|
|
this.$data = def.$data && it.opts.$data && this.schema && this.schema.$data
|
||
|
|
this.schemaValue = schemaRefOrVal(it, this.schema, keyword, this.$data)
|
||
|
|
this.schemaType = def.schemaType
|
||
|
|
this.parentSchema = it.schema
|
||
|
|
this.params = {}
|
||
|
|
this.it = it
|
||
|
|
this.def = def
|
||
|
|
|
||
|
|
if (this.$data) {
|
||
|
|
this.schemaCode = it.gen.const("vSchema", getData(this.$data, it))
|
||
|
|
} else {
|
||
|
|
this.schemaCode = this.schemaValue
|
||
|
|
if (!validSchemaType(this.schema, def.schemaType, def.allowUndefined)) {
|
||
|
|
throw new Error(`${keyword} value must be ${JSON.stringify(def.schemaType)}`)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ("code" in def ? def.trackErrors : def.errors !== false) {
|
||
|
|
this.errsCount = it.gen.const("_errs", N.errors)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
result(condition: Code, successAction?: () => void, failAction?: () => void): void {
|
||
|
|
this.failResult(not(condition), successAction, failAction)
|
||
|
|
}
|
||
|
|
|
||
|
|
failResult(condition: Code, successAction?: () => void, failAction?: () => void): void {
|
||
|
|
this.gen.if(condition)
|
||
|
|
if (failAction) failAction()
|
||
|
|
else this.error()
|
||
|
|
if (successAction) {
|
||
|
|
this.gen.else()
|
||
|
|
successAction()
|
||
|
|
if (this.allErrors) this.gen.endIf()
|
||
|
|
} else {
|
||
|
|
if (this.allErrors) this.gen.endIf()
|
||
|
|
else this.gen.else()
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
pass(condition: Code, failAction?: () => void): void {
|
||
|
|
this.failResult(not(condition), undefined, failAction)
|
||
|
|
}
|
||
|
|
|
||
|
|
fail(condition?: Code): void {
|
||
|
|
if (condition === undefined) {
|
||
|
|
this.error()
|
||
|
|
if (!this.allErrors) this.gen.if(false) // this branch will be removed by gen.optimize
|
||
|
|
return
|
||
|
|
}
|
||
|
|
this.gen.if(condition)
|
||
|
|
this.error()
|
||
|
|
if (this.allErrors) this.gen.endIf()
|
||
|
|
else this.gen.else()
|
||
|
|
}
|
||
|
|
|
||
|
|
fail$data(condition: Code): void {
|
||
|
|
if (!this.$data) return this.fail(condition)
|
||
|
|
const {schemaCode} = this
|
||
|
|
this.fail(_`${schemaCode} !== undefined && (${or(this.invalid$data(), condition)})`)
|
||
|
|
}
|
||
|
|
|
||
|
|
error(append?: boolean, errorParams?: KeywordCxtParams, errorPaths?: ErrorPaths): void {
|
||
|
|
if (errorParams) {
|
||
|
|
this.setParams(errorParams)
|
||
|
|
this._error(append, errorPaths)
|
||
|
|
this.setParams({})
|
||
|
|
return
|
||
|
|
}
|
||
|
|
this._error(append, errorPaths)
|
||
|
|
}
|
||
|
|
|
||
|
|
private _error(append?: boolean, errorPaths?: ErrorPaths): void {
|
||
|
|
;(append ? reportExtraError : reportError)(this, this.def.error, errorPaths)
|
||
|
|
}
|
||
|
|
|
||
|
|
$dataError(): void {
|
||
|
|
reportError(this, this.def.$dataError || keyword$DataError)
|
||
|
|
}
|
||
|
|
|
||
|
|
reset(): void {
|
||
|
|
if (this.errsCount === undefined) throw new Error('add "trackErrors" to keyword definition')
|
||
|
|
resetErrorsCount(this.gen, this.errsCount)
|
||
|
|
}
|
||
|
|
|
||
|
|
ok(cond: Code | boolean): void {
|
||
|
|
if (!this.allErrors) this.gen.if(cond)
|
||
|
|
}
|
||
|
|
|
||
|
|
setParams(obj: KeywordCxtParams, assign?: true): void {
|
||
|
|
if (assign) Object.assign(this.params, obj)
|
||
|
|
else this.params = obj
|
||
|
|
}
|
||
|
|
|
||
|
|
block$data(valid: Name, codeBlock: () => void, $dataValid: Code = nil): void {
|
||
|
|
this.gen.block(() => {
|
||
|
|
this.check$data(valid, $dataValid)
|
||
|
|
codeBlock()
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
check$data(valid: Name = nil, $dataValid: Code = nil): void {
|
||
|
|
if (!this.$data) return
|
||
|
|
const {gen, schemaCode, schemaType, def} = this
|
||
|
|
gen.if(or(_`${schemaCode} === undefined`, $dataValid))
|
||
|
|
if (valid !== nil) gen.assign(valid, true)
|
||
|
|
if (schemaType.length || def.validateSchema) {
|
||
|
|
gen.elseIf(this.invalid$data())
|
||
|
|
this.$dataError()
|
||
|
|
if (valid !== nil) gen.assign(valid, false)
|
||
|
|
}
|
||
|
|
gen.else()
|
||
|
|
}
|
||
|
|
|
||
|
|
invalid$data(): Code {
|
||
|
|
const {gen, schemaCode, schemaType, def, it} = this
|
||
|
|
return or(wrong$DataType(), invalid$DataSchema())
|
||
|
|
|
||
|
|
function wrong$DataType(): Code {
|
||
|
|
if (schemaType.length) {
|
||
|
|
/* istanbul ignore if */
|
||
|
|
if (!(schemaCode instanceof Name)) throw new Error("ajv implementation error")
|
||
|
|
const st = Array.isArray(schemaType) ? schemaType : [schemaType]
|
||
|
|
return _`${checkDataTypes(st, schemaCode, it.opts.strictNumbers, DataType.Wrong)}`
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
function invalid$DataSchema(): Code {
|
||
|
|
if (def.validateSchema) {
|
||
|
|
const validateSchemaRef = gen.scopeValue("validate$data", {ref: def.validateSchema}) // TODO value.code for standalone
|
||
|
|
return _`!${validateSchemaRef}(${schemaCode})`
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
subschema(appl: SubschemaArgs, valid: Name): SchemaCxt {
|
||
|
|
const subschema = getSubschema(this.it, appl)
|
||
|
|
extendSubschemaData(subschema, this.it, appl)
|
||
|
|
extendSubschemaMode(subschema, appl)
|
||
|
|
const nextContext = {...this.it, ...subschema, items: undefined, props: undefined}
|
||
|
|
subschemaCode(nextContext, valid)
|
||
|
|
return nextContext
|
||
|
|
}
|
||
|
|
|
||
|
|
mergeEvaluated(schemaCxt: SchemaCxt, toName?: typeof Name): void {
|
||
|
|
const {it, gen} = this
|
||
|
|
if (!it.opts.unevaluated) return
|
||
|
|
if (it.props !== true && schemaCxt.props !== undefined) {
|
||
|
|
it.props = mergeEvaluated.props(gen, schemaCxt.props, it.props, toName)
|
||
|
|
}
|
||
|
|
if (it.items !== true && schemaCxt.items !== undefined) {
|
||
|
|
it.items = mergeEvaluated.items(gen, schemaCxt.items, it.items, toName)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
mergeValidEvaluated(schemaCxt: SchemaCxt, valid: Name): boolean | void {
|
||
|
|
const {it, gen} = this
|
||
|
|
if (it.opts.unevaluated && (it.props !== true || it.items !== true)) {
|
||
|
|
gen.if(valid, () => this.mergeEvaluated(schemaCxt, Name))
|
||
|
|
return true
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function keywordCode(
|
||
|
|
it: SchemaObjCxt,
|
||
|
|
keyword: string,
|
||
|
|
def: AddedKeywordDefinition,
|
||
|
|
ruleType?: JSONType
|
||
|
|
): void {
|
||
|
|
const cxt = new KeywordCxt(it, def, keyword)
|
||
|
|
if ("code" in def) {
|
||
|
|
def.code(cxt, ruleType)
|
||
|
|
} else if (cxt.$data && def.validate) {
|
||
|
|
funcKeywordCode(cxt, def)
|
||
|
|
} else if ("macro" in def) {
|
||
|
|
macroKeywordCode(cxt, def)
|
||
|
|
} else if (def.compile || def.validate) {
|
||
|
|
funcKeywordCode(cxt, def)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const JSON_POINTER = /^\/(?:[^~]|~0|~1)*$/
|
||
|
|
const RELATIVE_JSON_POINTER = /^([0-9]+)(#|\/(?:[^~]|~0|~1)*)?$/
|
||
|
|
export function getData(
|
||
|
|
$data: string,
|
||
|
|
{dataLevel, dataNames, dataPathArr}: SchemaCxt
|
||
|
|
): Code | number {
|
||
|
|
let jsonPointer
|
||
|
|
let data: Code
|
||
|
|
if ($data === "") return N.rootData
|
||
|
|
if ($data[0] === "/") {
|
||
|
|
if (!JSON_POINTER.test($data)) throw new Error(`Invalid JSON-pointer: ${$data}`)
|
||
|
|
jsonPointer = $data
|
||
|
|
data = N.rootData
|
||
|
|
} else {
|
||
|
|
const matches = RELATIVE_JSON_POINTER.exec($data)
|
||
|
|
if (!matches) throw new Error(`Invalid JSON-pointer: ${$data}`)
|
||
|
|
const up: number = +matches[1]
|
||
|
|
jsonPointer = matches[2]
|
||
|
|
if (jsonPointer === "#") {
|
||
|
|
if (up >= dataLevel) throw new Error(errorMsg("property/index", up))
|
||
|
|
return dataPathArr[dataLevel - up]
|
||
|
|
}
|
||
|
|
if (up > dataLevel) throw new Error(errorMsg("data", up))
|
||
|
|
data = dataNames[dataLevel - up]
|
||
|
|
if (!jsonPointer) return data
|
||
|
|
}
|
||
|
|
|
||
|
|
let expr = data
|
||
|
|
const segments = jsonPointer.split("/")
|
||
|
|
for (const segment of segments) {
|
||
|
|
if (segment) {
|
||
|
|
data = _`${data}${getProperty(unescapeJsonPointer(segment))}`
|
||
|
|
expr = _`${expr} && ${data}`
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return expr
|
||
|
|
|
||
|
|
function errorMsg(pointerType: string, up: number): string {
|
||
|
|
return `Cannot access ${pointerType} ${up} levels up, current level is ${dataLevel}`
|
||
|
|
}
|
||
|
|
}
|