ajv/dist/compile/index.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.resolveSchema = exports.getCompilingSchema = exports.resolveRef = exports.compileSchema = exports.SchemaEnv = void 0;
const codegen_1 = require("./codegen");
const validation_error_1 = require("../runtime/validation_error");
const names_1 = require("./names");
const resolve_1 = require("./resolve");
const util_1 = require("./util");
const validate_1 = require("./validate");
const URI = require("uri-js");
class SchemaEnv {
    constructor(env) {
        var _a;
        this.refs = {};
        this.dynamicAnchors = {};
        let schema;
        if (typeof env.schema == "object")
            schema = env.schema;
        this.schema = env.schema;
        this.schemaId = env.schemaId;
        this.root = env.root || this;
        this.baseId = (_a = env.baseId) !== null && _a !== void 0 ? _a : resolve_1.normalizeId(schema === null || schema === void 0 ? void 0 : schema[env.schemaId || "$id"]);
        this.schemaPath = env.schemaPath;
        this.localRefs = env.localRefs;
        this.meta = env.meta;
        this.$async = schema === null || schema === void 0 ? void 0 : schema.$async;
        this.refs = {};
    }
}
exports.SchemaEnv = SchemaEnv;
// let codeSize = 0
// let nodeCount = 0
// Compiles schema in SchemaEnv
function compileSchema(sch) {
    // TODO refactor - remove compilations
    const _sch = getCompilingSchema.call(this, sch);
    if (_sch)
        return _sch;
    const rootId = resolve_1.getFullPath(sch.root.baseId); // TODO if getFullPath removed 1 tests fails
    const { es5, lines } = this.opts.code;
    const { ownProperties } = this.opts;
    const gen = new codegen_1.CodeGen(this.scope, { es5, lines, ownProperties });
    let _ValidationError;
    if (sch.$async) {
        _ValidationError = gen.scopeValue("Error", {
            ref: validation_error_1.default,
            code: codegen_1._ `require("ajv/dist/runtime/validation_error").default`,
        });
    }
    const validateName = gen.scopeName("validate");
    sch.validateName = validateName;
    const schemaCxt = {
        gen,
        allErrors: this.opts.allErrors,
        data: names_1.default.data,
        parentData: names_1.default.parentData,
        parentDataProperty: names_1.default.parentDataProperty,
        dataNames: [names_1.default.data],
        dataPathArr: [codegen_1.nil],
        dataLevel: 0,
        dataTypes: [],
        definedProperties: new Set(),
        topSchemaRef: gen.scopeValue("schema", this.opts.code.source === true
            ? { ref: sch.schema, code: codegen_1.stringify(sch.schema) }
            : { ref: sch.schema }),
        validateName,
        ValidationError: _ValidationError,
        schema: sch.schema,
        schemaEnv: sch,
        rootId,
        baseId: sch.baseId || rootId,
        schemaPath: codegen_1.nil,
        errSchemaPath: sch.schemaPath || (this.opts.jtd ? "" : "#"),
        errorPath: codegen_1._ `""`,
        opts: this.opts,
        self: this,
    };
    let sourceCode;
    try {
        this._compilations.add(sch);
        validate_1.validateFunctionCode(schemaCxt);
        gen.optimize(this.opts.code.optimize);
        // gen.optimize(1)
        const validateCode = gen.toString();
        sourceCode = `${gen.scopeRefs(names_1.default.scope)}return ${validateCode}`;
        // console.log((codeSize += sourceCode.length), (nodeCount += gen.nodeCount))
        if (this.opts.code.process)
            sourceCode = this.opts.code.process(sourceCode, sch);
        // console.log("\n\n\n *** \n", sourceCode)
        const makeValidate = new Function(`${names_1.default.self}`, `${names_1.default.scope}`, sourceCode);
        const validate = makeValidate(this, this.scope.get());
        this.scope.value(validateName, { ref: validate });
        validate.errors = null;
        validate.schema = sch.schema;
        validate.schemaEnv = sch;
        if (sch.$async)
            validate.$async = true;
        if (this.opts.code.source === true) {
            validate.source = { validateName, validateCode, scopeValues: gen._values };
        }
        if (this.opts.unevaluated) {
            const { props, items } = schemaCxt;
            validate.evaluated = {
                props: props instanceof codegen_1.Name ? undefined : props,
                items: items instanceof codegen_1.Name ? undefined : items,
                dynamicProps: props instanceof codegen_1.Name,
                dynamicItems: items instanceof codegen_1.Name,
            };
            if (validate.source)
                validate.source.evaluated = codegen_1.stringify(validate.evaluated);
        }
        sch.validate = validate;
        return sch;
    }
    catch (e) {
        delete sch.validate;
        delete sch.validateName;
        if (sourceCode)
            this.logger.error("Error compiling schema, function code:", sourceCode);
        // console.log("\n\n\n *** \n", sourceCode, this.opts)
        throw e;
    }
    finally {
        this._compilations.delete(sch);
    }
}
exports.compileSchema = compileSchema;
function resolveRef(root, baseId, ref) {
    var _a;
    ref = resolve_1.resolveUrl(baseId, ref);
    const schOrFunc = root.refs[ref];
    if (schOrFunc)
        return schOrFunc;
    let _sch = resolve.call(this, root, ref);
    if (_sch === undefined) {
        const schema = (_a = root.localRefs) === null || _a === void 0 ? void 0 : _a[ref]; // TODO maybe localRefs should hold SchemaEnv
        const { schemaId } = this.opts;
        if (schema)
            _sch = new SchemaEnv({ schema, schemaId, root, baseId });
    }
    if (_sch === undefined)
        return;
    return (root.refs[ref] = inlineOrCompile.call(this, _sch));
}
exports.resolveRef = resolveRef;
function inlineOrCompile(sch) {
    if (resolve_1.inlineRef(sch.schema, this.opts.inlineRefs))
        return sch.schema;
    return sch.validate ? sch : compileSchema.call(this, sch);
}
// Index of schema compilation in the currently compiled list
function getCompilingSchema(schEnv) {
    for (const sch of this._compilations) {
        if (sameSchemaEnv(sch, schEnv))
            return sch;
    }
}
exports.getCompilingSchema = getCompilingSchema;
function sameSchemaEnv(s1, s2) {
    return s1.schema === s2.schema && s1.root === s2.root && s1.baseId === s2.baseId;
}
// resolve and compile the references ($ref)
// TODO returns AnySchemaObject (if the schema can be inlined) or validation function
function resolve(root, // information about the root schema for the current schema
ref // reference to resolve
) {
    let sch;
    while (typeof (sch = this.refs[ref]) == "string")
        ref = sch;
    return sch || this.schemas[ref] || resolveSchema.call(this, root, ref);
}
// Resolve schema, its root and baseId
function resolveSchema(root, // root object with properties schema, refs TODO below SchemaEnv is assigned to it
ref // reference to resolve
) {
    const p = URI.parse(ref);
    const refPath = resolve_1._getFullPath(p);
    let baseId = resolve_1.getFullPath(root.baseId);
    // TODO `Object.keys(root.schema).length > 0` should not be needed - but removing breaks 2 tests
    if (Object.keys(root.schema).length > 0 && refPath === baseId) {
        return getJsonPointer.call(this, p, root);
    }
    const id = resolve_1.normalizeId(refPath);
    const schOrRef = this.refs[id] || this.schemas[id];
    if (typeof schOrRef == "string") {
        const sch = resolveSchema.call(this, root, schOrRef);
        if (typeof (sch === null || sch === void 0 ? void 0 : sch.schema) !== "object")
            return;
        return getJsonPointer.call(this, p, sch);
    }
    if (typeof (schOrRef === null || schOrRef === void 0 ? void 0 : schOrRef.schema) !== "object")
        return;
    if (!schOrRef.validate)
        compileSchema.call(this, schOrRef);
    if (id === resolve_1.normalizeId(ref)) {
        const { schema } = schOrRef;
        const { schemaId } = this.opts;
        const schId = schema[schemaId];
        if (schId)
            baseId = resolve_1.resolveUrl(baseId, schId);
        return new SchemaEnv({ schema, schemaId, root, baseId });
    }
    return getJsonPointer.call(this, p, schOrRef);
}
exports.resolveSchema = resolveSchema;
const PREVENT_SCOPE_CHANGE = new Set([
    "properties",
    "patternProperties",
    "enum",
    "dependencies",
    "definitions",
]);
function getJsonPointer(parsedRef, { baseId, schema, root }) {
    var _a;
    if (((_a = parsedRef.fragment) === null || _a === void 0 ? void 0 : _a[0]) !== "/")
        return;
    for (const part of parsedRef.fragment.slice(1).split("/")) {
        if (typeof schema == "boolean")
            return;
        schema = schema[util_1.unescapeFragment(part)];
        if (schema === undefined)
            return;
        // TODO PREVENT_SCOPE_CHANGE could be defined in keyword def?
        const schId = typeof schema == "object" && schema[this.opts.schemaId];
        if (!PREVENT_SCOPE_CHANGE.has(part) && schId) {
            baseId = resolve_1.resolveUrl(baseId, schId);
        }
    }
    let env;
    if (typeof schema != "boolean" && schema.$ref && !util_1.schemaHasRulesButRef(schema, this.RULES)) {
        const $ref = resolve_1.resolveUrl(baseId, schema.$ref);
        env = resolveSchema.call(this, root, $ref);
    }
    // even though resolution failed we need to return SchemaEnv to throw exception
    // so that compileAsync loads missing schema.
    const { schemaId } = this.opts;
    env = env || new SchemaEnv({ schema, schemaId, root, baseId });
    if (env.schema !== env.root.schema)
        return env;
    return undefined;
}
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