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Diffstat (limited to 'tools/node_modules/eslint/node_modules/ajv/lib/ajv.js')
| -rw-r--r-- | tools/node_modules/eslint/node_modules/ajv/lib/ajv.js | 502 |
1 files changed, 502 insertions, 0 deletions
diff --git a/tools/node_modules/eslint/node_modules/ajv/lib/ajv.js b/tools/node_modules/eslint/node_modules/ajv/lib/ajv.js new file mode 100644 index 0000000000..cbee2adbcb --- /dev/null +++ b/tools/node_modules/eslint/node_modules/ajv/lib/ajv.js @@ -0,0 +1,502 @@ +'use strict'; + +var compileSchema = require('./compile') + , resolve = require('./compile/resolve') + , Cache = require('./cache') + , SchemaObject = require('./compile/schema_obj') + , stableStringify = require('fast-json-stable-stringify') + , formats = require('./compile/formats') + , rules = require('./compile/rules') + , $dataMetaSchema = require('./$data') + , patternGroups = require('./patternGroups') + , util = require('./compile/util') + , co = require('co'); + +module.exports = Ajv; + +Ajv.prototype.validate = validate; +Ajv.prototype.compile = compile; +Ajv.prototype.addSchema = addSchema; +Ajv.prototype.addMetaSchema = addMetaSchema; +Ajv.prototype.validateSchema = validateSchema; +Ajv.prototype.getSchema = getSchema; +Ajv.prototype.removeSchema = removeSchema; +Ajv.prototype.addFormat = addFormat; +Ajv.prototype.errorsText = errorsText; + +Ajv.prototype._addSchema = _addSchema; +Ajv.prototype._compile = _compile; + +Ajv.prototype.compileAsync = require('./compile/async'); +var customKeyword = require('./keyword'); +Ajv.prototype.addKeyword = customKeyword.add; +Ajv.prototype.getKeyword = customKeyword.get; +Ajv.prototype.removeKeyword = customKeyword.remove; + +var errorClasses = require('./compile/error_classes'); +Ajv.ValidationError = errorClasses.Validation; +Ajv.MissingRefError = errorClasses.MissingRef; +Ajv.$dataMetaSchema = $dataMetaSchema; + +var META_SCHEMA_ID = 'http://json-schema.org/draft-06/schema'; + +var META_IGNORE_OPTIONS = [ 'removeAdditional', 'useDefaults', 'coerceTypes' ]; +var META_SUPPORT_DATA = ['/properties']; + +/** + * Creates validator instance. + * Usage: `Ajv(opts)` + * @param {Object} opts optional options + * @return {Object} ajv instance + */ +function Ajv(opts) { + if (!(this instanceof Ajv)) return new Ajv(opts); + opts = this._opts = util.copy(opts) || {}; + setLogger(this); + this._schemas = {}; + this._refs = {}; + this._fragments = {}; + this._formats = formats(opts.format); + var schemaUriFormat = this._schemaUriFormat = this._formats['uri-reference']; + this._schemaUriFormatFunc = function (str) { return schemaUriFormat.test(str); }; + + this._cache = opts.cache || new Cache; + this._loadingSchemas = {}; + this._compilations = []; + this.RULES = rules(); + this._getId = chooseGetId(opts); + + opts.loopRequired = opts.loopRequired || Infinity; + if (opts.errorDataPath == 'property') opts._errorDataPathProperty = true; + if (opts.serialize === undefined) opts.serialize = stableStringify; + this._metaOpts = getMetaSchemaOptions(this); + + if (opts.formats) addInitialFormats(this); + addDraft6MetaSchema(this); + if (typeof opts.meta == 'object') this.addMetaSchema(opts.meta); + addInitialSchemas(this); + if (opts.patternGroups) patternGroups(this); +} + + + +/** + * Validate data using schema + * Schema will be compiled and cached (using serialized JSON as key. [fast-json-stable-stringify](https://github.com/epoberezkin/fast-json-stable-stringify) is used to serialize. + * @this Ajv + * @param {String|Object} schemaKeyRef key, ref or schema object + * @param {Any} data to be validated + * @return {Boolean} validation result. Errors from the last validation will be available in `ajv.errors` (and also in compiled schema: `schema.errors`). + */ +function validate(schemaKeyRef, data) { + var v; + if (typeof schemaKeyRef == 'string') { + v = this.getSchema(schemaKeyRef); + if (!v) throw new Error('no schema with key or ref "' + schemaKeyRef + '"'); + } else { + var schemaObj = this._addSchema(schemaKeyRef); + v = schemaObj.validate || this._compile(schemaObj); + } + + var valid = v(data); + if (v.$async === true) + return this._opts.async == '*' ? co(valid) : valid; + this.errors = v.errors; + return valid; +} + + +/** + * Create validating function for passed schema. + * @this Ajv + * @param {Object} schema schema object + * @param {Boolean} _meta true if schema is a meta-schema. Used internally to compile meta schemas of custom keywords. + * @return {Function} validating function + */ +function compile(schema, _meta) { + var schemaObj = this._addSchema(schema, undefined, _meta); + return schemaObj.validate || this._compile(schemaObj); +} + + +/** + * Adds schema to the instance. + * @this Ajv + * @param {Object|Array} schema schema or array of schemas. If array is passed, `key` and other parameters will be ignored. + * @param {String} key Optional schema key. Can be passed to `validate` method instead of schema object or id/ref. One schema per instance can have empty `id` and `key`. + * @param {Boolean} _skipValidation true to skip schema validation. Used internally, option validateSchema should be used instead. + * @param {Boolean} _meta true if schema is a meta-schema. Used internally, addMetaSchema should be used instead. + * @return {Ajv} this for method chaining + */ +function addSchema(schema, key, _skipValidation, _meta) { + if (Array.isArray(schema)){ + for (var i=0; i<schema.length; i++) this.addSchema(schema[i], undefined, _skipValidation, _meta); + return; + } + var id = this._getId(schema); + if (id !== undefined && typeof id != 'string') + throw new Error('schema id must be string'); + key = resolve.normalizeId(key || id); + checkUnique(this, key); + this._schemas[key] = this._addSchema(schema, _skipValidation, _meta, true); + return this; +} + + +/** + * Add schema that will be used to validate other schemas + * options in META_IGNORE_OPTIONS are alway set to false + * @this Ajv + * @param {Object} schema schema object + * @param {String} key optional schema key + * @param {Boolean} skipValidation true to skip schema validation, can be used to override validateSchema option for meta-schema + * @return {Ajv} this for method chaining + */ +function addMetaSchema(schema, key, skipValidation) { + this.addSchema(schema, key, skipValidation, true); + return this; +} + + +/** + * Validate schema + * @this Ajv + * @param {Object} schema schema to validate + * @param {Boolean} throwOrLogError pass true to throw (or log) an error if invalid + * @return {Boolean} true if schema is valid + */ +function validateSchema(schema, throwOrLogError) { + var $schema = schema.$schema; + if ($schema !== undefined && typeof $schema != 'string') + throw new Error('$schema must be a string'); + $schema = $schema || this._opts.defaultMeta || defaultMeta(this); + if (!$schema) { + this.logger.warn('meta-schema not available'); + this.errors = null; + return true; + } + var currentUriFormat = this._formats.uri; + this._formats.uri = typeof currentUriFormat == 'function' + ? this._schemaUriFormatFunc + : this._schemaUriFormat; + var valid; + try { valid = this.validate($schema, schema); } + finally { this._formats.uri = currentUriFormat; } + if (!valid && throwOrLogError) { + var message = 'schema is invalid: ' + this.errorsText(); + if (this._opts.validateSchema == 'log') this.logger.error(message); + else throw new Error(message); + } + return valid; +} + + +function defaultMeta(self) { + var meta = self._opts.meta; + self._opts.defaultMeta = typeof meta == 'object' + ? self._getId(meta) || meta + : self.getSchema(META_SCHEMA_ID) + ? META_SCHEMA_ID + : undefined; + return self._opts.defaultMeta; +} + + +/** + * Get compiled schema from the instance by `key` or `ref`. + * @this Ajv + * @param {String} keyRef `key` that was passed to `addSchema` or full schema reference (`schema.id` or resolved id). + * @return {Function} schema validating function (with property `schema`). + */ +function getSchema(keyRef) { + var schemaObj = _getSchemaObj(this, keyRef); + switch (typeof schemaObj) { + case 'object': return schemaObj.validate || this._compile(schemaObj); + case 'string': return this.getSchema(schemaObj); + case 'undefined': return _getSchemaFragment(this, keyRef); + } +} + + +function _getSchemaFragment(self, ref) { + var res = resolve.schema.call(self, { schema: {} }, ref); + if (res) { + var schema = res.schema + , root = res.root + , baseId = res.baseId; + var v = compileSchema.call(self, schema, root, undefined, baseId); + self._fragments[ref] = new SchemaObject({ + ref: ref, + fragment: true, + schema: schema, + root: root, + baseId: baseId, + validate: v + }); + return v; + } +} + + +function _getSchemaObj(self, keyRef) { + keyRef = resolve.normalizeId(keyRef); + return self._schemas[keyRef] || self._refs[keyRef] || self._fragments[keyRef]; +} + + +/** + * Remove cached schema(s). + * If no parameter is passed all schemas but meta-schemas are removed. + * If RegExp is passed all schemas with key/id matching pattern but meta-schemas are removed. + * Even if schema is referenced by other schemas it still can be removed as other schemas have local references. + * @this Ajv + * @param {String|Object|RegExp} schemaKeyRef key, ref, pattern to match key/ref or schema object + * @return {Ajv} this for method chaining + */ +function removeSchema(schemaKeyRef) { + if (schemaKeyRef instanceof RegExp) { + _removeAllSchemas(this, this._schemas, schemaKeyRef); + _removeAllSchemas(this, this._refs, schemaKeyRef); + return this; + } + switch (typeof schemaKeyRef) { + case 'undefined': + _removeAllSchemas(this, this._schemas); + _removeAllSchemas(this, this._refs); + this._cache.clear(); + return this; + case 'string': + var schemaObj = _getSchemaObj(this, schemaKeyRef); + if (schemaObj) this._cache.del(schemaObj.cacheKey); + delete this._schemas[schemaKeyRef]; + delete this._refs[schemaKeyRef]; + return this; + case 'object': + var serialize = this._opts.serialize; + var cacheKey = serialize ? serialize(schemaKeyRef) : schemaKeyRef; + this._cache.del(cacheKey); + var id = this._getId(schemaKeyRef); + if (id) { + id = resolve.normalizeId(id); + delete this._schemas[id]; + delete this._refs[id]; + } + } + return this; +} + + +function _removeAllSchemas(self, schemas, regex) { + for (var keyRef in schemas) { + var schemaObj = schemas[keyRef]; + if (!schemaObj.meta && (!regex || regex.test(keyRef))) { + self._cache.del(schemaObj.cacheKey); + delete schemas[keyRef]; + } + } +} + + +/* @this Ajv */ +function _addSchema(schema, skipValidation, meta, shouldAddSchema) { + if (typeof schema != 'object' && typeof schema != 'boolean') + throw new Error('schema should be object or boolean'); + var serialize = this._opts.serialize; + var cacheKey = serialize ? serialize(schema) : schema; + var cached = this._cache.get(cacheKey); + if (cached) return cached; + + shouldAddSchema = shouldAddSchema || this._opts.addUsedSchema !== false; + + var id = resolve.normalizeId(this._getId(schema)); + if (id && shouldAddSchema) checkUnique(this, id); + + var willValidate = this._opts.validateSchema !== false && !skipValidation; + var recursiveMeta; + if (willValidate && !(recursiveMeta = id && id == resolve.normalizeId(schema.$schema))) + this.validateSchema(schema, true); + + var localRefs = resolve.ids.call(this, schema); + + var schemaObj = new SchemaObject({ + id: id, + schema: schema, + localRefs: localRefs, + cacheKey: cacheKey, + meta: meta + }); + + if (id[0] != '#' && shouldAddSchema) this._refs[id] = schemaObj; + this._cache.put(cacheKey, schemaObj); + + if (willValidate && recursiveMeta) this.validateSchema(schema, true); + + return schemaObj; +} + + +/* @this Ajv */ +function _compile(schemaObj, root) { + if (schemaObj.compiling) { + schemaObj.validate = callValidate; + callValidate.schema = schemaObj.schema; + callValidate.errors = null; + callValidate.root = root ? root : callValidate; + if (schemaObj.schema.$async === true) + callValidate.$async = true; + return callValidate; + } + schemaObj.compiling = true; + + var currentOpts; + if (schemaObj.meta) { + currentOpts = this._opts; + this._opts = this._metaOpts; + } + + var v; + try { v = compileSchema.call(this, schemaObj.schema, root, schemaObj.localRefs); } + finally { + schemaObj.compiling = false; + if (schemaObj.meta) this._opts = currentOpts; + } + + schemaObj.validate = v; + schemaObj.refs = v.refs; + schemaObj.refVal = v.refVal; + schemaObj.root = v.root; + return v; + + + function callValidate() { + var _validate = schemaObj.validate; + var result = _validate.apply(null, arguments); + callValidate.errors = _validate.errors; + return result; + } +} + + +function chooseGetId(opts) { + switch (opts.schemaId) { + case '$id': return _get$Id; + case 'id': return _getId; + default: return _get$IdOrId; + } +} + +/* @this Ajv */ +function _getId(schema) { + if (schema.$id) this.logger.warn('schema $id ignored', schema.$id); + return schema.id; +} + +/* @this Ajv */ +function _get$Id(schema) { + if (schema.id) this.logger.warn('schema id ignored', schema.id); + return schema.$id; +} + + +function _get$IdOrId(schema) { + if (schema.$id && schema.id && schema.$id != schema.id) + throw new Error('schema $id is different from id'); + return schema.$id || schema.id; +} + + +/** + * Convert array of error message objects to string + * @this Ajv + * @param {Array<Object>} errors optional array of validation errors, if not passed errors from the instance are used. + * @param {Object} options optional options with properties `separator` and `dataVar`. + * @return {String} human readable string with all errors descriptions + */ +function errorsText(errors, options) { + errors = errors || this.errors; + if (!errors) return 'No errors'; + options = options || {}; + var separator = options.separator === undefined ? ', ' : options.separator; + var dataVar = options.dataVar === undefined ? 'data' : options.dataVar; + + var text = ''; + for (var i=0; i<errors.length; i++) { + var e = errors[i]; + if (e) text += dataVar + e.dataPath + ' ' + e.message + separator; + } + return text.slice(0, -separator.length); +} + + +/** + * Add custom format + * @this Ajv + * @param {String} name format name + * @param {String|RegExp|Function} format string is converted to RegExp; function should return boolean (true when valid) + * @return {Ajv} this for method chaining + */ +function addFormat(name, format) { + if (typeof format == 'string') format = new RegExp(format); + this._formats[name] = format; + return this; +} + + +function addDraft6MetaSchema(self) { + var $dataSchema; + if (self._opts.$data) { + $dataSchema = require('./refs/$data.json'); + self.addMetaSchema($dataSchema, $dataSchema.$id, true); + } + if (self._opts.meta === false) return; + var metaSchema = require('./refs/json-schema-draft-06.json'); + if (self._opts.$data) metaSchema = $dataMetaSchema(metaSchema, META_SUPPORT_DATA); + self.addMetaSchema(metaSchema, META_SCHEMA_ID, true); + self._refs['http://json-schema.org/schema'] = META_SCHEMA_ID; +} + + +function addInitialSchemas(self) { + var optsSchemas = self._opts.schemas; + if (!optsSchemas) return; + if (Array.isArray(optsSchemas)) self.addSchema(optsSchemas); + else for (var key in optsSchemas) self.addSchema(optsSchemas[key], key); +} + + +function addInitialFormats(self) { + for (var name in self._opts.formats) { + var format = self._opts.formats[name]; + self.addFormat(name, format); + } +} + + +function checkUnique(self, id) { + if (self._schemas[id] || self._refs[id]) + throw new Error('schema with key or id "' + id + '" already exists'); +} + + +function getMetaSchemaOptions(self) { + var metaOpts = util.copy(self._opts); + for (var i=0; i<META_IGNORE_OPTIONS.length; i++) + delete metaOpts[META_IGNORE_OPTIONS[i]]; + return metaOpts; +} + + +function setLogger(self) { + var logger = self._opts.logger; + if (logger === false) { + self.logger = {log: noop, warn: noop, error: noop}; + } else { + if (logger === undefined) logger = console; + if (!(typeof logger == 'object' && logger.log && logger.warn && logger.error)) + throw new Error('logger must implement log, warn and error methods'); + self.logger = logger; + } +} + + +function noop() {} |