mirror of
https://github.com/thangisme/notes.git
synced 2024-11-04 19:47:15 -05:00
391 lines
10 KiB
JavaScript
391 lines
10 KiB
JavaScript
'use strict';
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var resolve = require('./resolve')
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, util = require('./util')
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, stableStringify = require('json-stable-stringify')
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, async = require('../async');
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var beautify;
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function loadBeautify(){
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if (beautify === undefined) {
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var name = 'js-beautify';
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try { beautify = require(name).js_beautify; }
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catch(e) { beautify = false; }
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}
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}
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var validateGenerator = require('../dotjs/validate');
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/**
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* Functions below are used inside compiled validations function
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*/
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var co = require('co');
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var ucs2length = util.ucs2length;
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var equal = require('./equal');
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// this error is thrown by async schemas to return validation errors via exception
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var ValidationError = require('./validation_error');
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module.exports = compile;
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/**
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* Compiles schema to validation function
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* @this Ajv
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* @param {Object} schema schema object
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* @param {Object} root object with information about the root schema for this schema
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* @param {Object} localRefs the hash of local references inside the schema (created by resolve.id), used for inline resolution
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* @param {String} baseId base ID for IDs in the schema
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* @return {Function} validation function
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*/
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function compile(schema, root, localRefs, baseId) {
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/* jshint validthis: true, evil: true */
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/* eslint no-shadow: 0 */
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var self = this
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, opts = this._opts
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, refVal = [ undefined ]
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, refs = {}
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, patterns = []
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, patternsHash = {}
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, defaults = []
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, defaultsHash = {}
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, customRules = []
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, keepSourceCode = opts.sourceCode !== false;
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root = root || { schema: schema, refVal: refVal, refs: refs };
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var c = checkCompiling.call(this, schema, root, baseId);
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var compilation = this._compilations[c.index];
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if (c.compiling) return (compilation.callValidate = callValidate);
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var formats = this._formats;
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var RULES = this.RULES;
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try {
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var v = localCompile(schema, root, localRefs, baseId);
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compilation.validate = v;
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var cv = compilation.callValidate;
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if (cv) {
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cv.schema = v.schema;
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cv.errors = null;
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cv.refs = v.refs;
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cv.refVal = v.refVal;
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cv.root = v.root;
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cv.$async = v.$async;
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if (keepSourceCode) cv.sourceCode = v.sourceCode;
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}
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return v;
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} finally {
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endCompiling.call(this, schema, root, baseId);
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}
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function callValidate() {
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var validate = compilation.validate;
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var result = validate.apply(null, arguments);
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callValidate.errors = validate.errors;
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return result;
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}
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function localCompile(_schema, _root, localRefs, baseId) {
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var isRoot = !_root || (_root && _root.schema == _schema);
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if (_root.schema != root.schema)
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return compile.call(self, _schema, _root, localRefs, baseId);
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var $async = _schema.$async === true;
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if ($async && !opts.transpile) async.setup(opts);
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var sourceCode = validateGenerator({
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isTop: true,
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schema: _schema,
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isRoot: isRoot,
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baseId: baseId,
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root: _root,
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schemaPath: '',
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errSchemaPath: '#',
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errorPath: '""',
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RULES: RULES,
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validate: validateGenerator,
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util: util,
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resolve: resolve,
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resolveRef: resolveRef,
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usePattern: usePattern,
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useDefault: useDefault,
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useCustomRule: useCustomRule,
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opts: opts,
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formats: formats,
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self: self
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});
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sourceCode = vars(refVal, refValCode) + vars(patterns, patternCode)
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+ vars(defaults, defaultCode) + vars(customRules, customRuleCode)
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+ sourceCode;
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if (opts.beautify) {
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loadBeautify();
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/* istanbul ignore else */
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if (beautify) sourceCode = beautify(sourceCode, opts.beautify);
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else console.error('"npm install js-beautify" to use beautify option');
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}
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// console.log('\n\n\n *** \n', sourceCode);
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var validate, validateCode
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, transpile = opts._transpileFunc;
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try {
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validateCode = $async && transpile
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? transpile(sourceCode)
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: sourceCode;
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var makeValidate = new Function(
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'self',
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'RULES',
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'formats',
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'root',
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'refVal',
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'defaults',
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'customRules',
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'co',
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'equal',
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'ucs2length',
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'ValidationError',
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validateCode
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);
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validate = makeValidate(
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self,
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RULES,
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formats,
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root,
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refVal,
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defaults,
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customRules,
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co,
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equal,
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ucs2length,
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ValidationError
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);
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refVal[0] = validate;
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} catch(e) {
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console.error('Error compiling schema, function code:', validateCode);
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throw e;
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}
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validate.schema = _schema;
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validate.errors = null;
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validate.refs = refs;
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validate.refVal = refVal;
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validate.root = isRoot ? validate : _root;
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if ($async) validate.$async = true;
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if (keepSourceCode) validate.sourceCode = sourceCode;
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if (opts.sourceCode === true) {
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validate.source = {
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patterns: patterns,
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defaults: defaults
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};
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}
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return validate;
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}
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function resolveRef(baseId, ref, isRoot) {
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ref = resolve.url(baseId, ref);
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var refIndex = refs[ref];
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var _refVal, refCode;
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if (refIndex !== undefined) {
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_refVal = refVal[refIndex];
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refCode = 'refVal[' + refIndex + ']';
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return resolvedRef(_refVal, refCode);
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}
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if (!isRoot && root.refs) {
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var rootRefId = root.refs[ref];
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if (rootRefId !== undefined) {
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_refVal = root.refVal[rootRefId];
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refCode = addLocalRef(ref, _refVal);
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return resolvedRef(_refVal, refCode);
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}
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}
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refCode = addLocalRef(ref);
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var v = resolve.call(self, localCompile, root, ref);
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if (!v) {
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var localSchema = localRefs && localRefs[ref];
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if (localSchema) {
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v = resolve.inlineRef(localSchema, opts.inlineRefs)
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? localSchema
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: compile.call(self, localSchema, root, localRefs, baseId);
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}
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}
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if (v) {
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replaceLocalRef(ref, v);
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return resolvedRef(v, refCode);
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}
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}
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function addLocalRef(ref, v) {
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var refId = refVal.length;
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refVal[refId] = v;
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refs[ref] = refId;
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return 'refVal' + refId;
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}
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function replaceLocalRef(ref, v) {
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var refId = refs[ref];
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refVal[refId] = v;
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}
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function resolvedRef(refVal, code) {
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return typeof refVal == 'object'
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? { code: code, schema: refVal, inline: true }
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: { code: code, $async: refVal && refVal.$async };
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}
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function usePattern(regexStr) {
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var index = patternsHash[regexStr];
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if (index === undefined) {
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index = patternsHash[regexStr] = patterns.length;
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patterns[index] = regexStr;
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}
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return 'pattern' + index;
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}
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function useDefault(value) {
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switch (typeof value) {
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case 'boolean':
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case 'number':
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return '' + value;
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case 'string':
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return util.toQuotedString(value);
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case 'object':
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if (value === null) return 'null';
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var valueStr = stableStringify(value);
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var index = defaultsHash[valueStr];
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if (index === undefined) {
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index = defaultsHash[valueStr] = defaults.length;
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defaults[index] = value;
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}
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return 'default' + index;
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}
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}
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function useCustomRule(rule, schema, parentSchema, it) {
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var validateSchema = rule.definition.validateSchema;
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if (validateSchema && self._opts.validateSchema !== false) {
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var valid = validateSchema(schema);
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if (!valid) {
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var message = 'keyword schema is invalid: ' + self.errorsText(validateSchema.errors);
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if (self._opts.validateSchema == 'log') console.error(message);
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else throw new Error(message);
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}
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}
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var compile = rule.definition.compile
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, inline = rule.definition.inline
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, macro = rule.definition.macro;
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var validate;
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if (compile) {
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validate = compile.call(self, schema, parentSchema, it);
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} else if (macro) {
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validate = macro.call(self, schema, parentSchema, it);
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if (opts.validateSchema !== false) self.validateSchema(validate, true);
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} else if (inline) {
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validate = inline.call(self, it, rule.keyword, schema, parentSchema);
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} else {
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validate = rule.definition.validate;
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}
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var index = customRules.length;
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customRules[index] = validate;
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return {
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code: 'customRule' + index,
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validate: validate
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};
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}
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}
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/**
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* Checks if the schema is currently compiled
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* @this Ajv
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* @param {Object} schema schema to compile
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* @param {Object} root root object
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* @param {String} baseId base schema ID
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* @return {Object} object with properties "index" (compilation index) and "compiling" (boolean)
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*/
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function checkCompiling(schema, root, baseId) {
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/* jshint validthis: true */
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var index = compIndex.call(this, schema, root, baseId);
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if (index >= 0) return { index: index, compiling: true };
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index = this._compilations.length;
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this._compilations[index] = {
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schema: schema,
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root: root,
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baseId: baseId
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};
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return { index: index, compiling: false };
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}
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/**
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* Removes the schema from the currently compiled list
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* @this Ajv
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* @param {Object} schema schema to compile
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* @param {Object} root root object
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* @param {String} baseId base schema ID
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*/
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function endCompiling(schema, root, baseId) {
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/* jshint validthis: true */
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var i = compIndex.call(this, schema, root, baseId);
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if (i >= 0) this._compilations.splice(i, 1);
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}
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/**
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* Index of schema compilation in the currently compiled list
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* @this Ajv
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* @param {Object} schema schema to compile
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* @param {Object} root root object
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* @param {String} baseId base schema ID
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* @return {Integer} compilation index
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*/
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function compIndex(schema, root, baseId) {
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/* jshint validthis: true */
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for (var i=0; i<this._compilations.length; i++) {
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var c = this._compilations[i];
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if (c.schema == schema && c.root == root && c.baseId == baseId) return i;
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}
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return -1;
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}
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function patternCode(i, patterns) {
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return 'var pattern' + i + ' = new RegExp(' + util.toQuotedString(patterns[i]) + ');';
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}
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function defaultCode(i) {
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return 'var default' + i + ' = defaults[' + i + '];';
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}
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function refValCode(i, refVal) {
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return refVal[i] ? 'var refVal' + i + ' = refVal[' + i + '];' : '';
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}
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function customRuleCode(i) {
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return 'var customRule' + i + ' = customRules[' + i + '];';
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}
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function vars(arr, statement) {
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if (!arr.length) return '';
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var code = '';
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for (var i=0; i<arr.length; i++)
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code += statement(i, arr);
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return code;
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}
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