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…loses #1650.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,69 +1,167 @@ | ||
| 'use strict'; | ||
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| const Hoek = require('@hapi/hoek'); | ||
| const Marker = require('@hapi/marker'); | ||
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| const Utils = require('./utils'); | ||
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| const internals = {}; | ||
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| const internals = { | ||
| symbol: Marker('ref') // Used to internally identify references (shared with other joi versions) | ||
| }; | ||
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| module.exports = exports = internals.Ref = class { | ||
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| exports.create = function (key, options) { | ||
| constructor(key, options = {}) { | ||
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| Hoek.assert(typeof key === 'string', 'Invalid reference key:', key); | ||
| Hoek.assert(typeof key === 'string', 'Invalid reference key:', key); | ||
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| const settings = options ? Hoek.clone(options) : {}; // options can be reused and modified | ||
| this.settings = Hoek.clone(options); | ||
| this[internals.symbol] = true; | ||
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| const ref = function (parent, value, validationOptions) { | ||
| const contextPrefix = this.settings.contextPrefix || '$'; | ||
| const separator = this.settings.separator || '.'; | ||
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| const target = ref.isContext ? validationOptions.context : (settings.self ? value : parent); | ||
| return Hoek.reach(target, ref.key, settings); | ||
| }; | ||
| this.isContext = key[0] === contextPrefix; | ||
| if (this.isContext) { | ||
| key = key.slice(1); | ||
| this.display = `context:${key}`; | ||
| } | ||
| else { | ||
| if (this.settings.ancestor !== undefined) { | ||
| Hoek.assert(key[0] !== separator, 'Cannot combine prefix with ancestor option'); | ||
| } | ||
| else { | ||
| const [ancestor, slice] = internals.ancestor(key, separator); | ||
| if (slice) { | ||
| key = key.slice(slice); | ||
| } | ||
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| const contextPrefix = settings.contextPrefix || '$'; | ||
| const separator = settings.separator || '.'; | ||
| this.settings.ancestor = ancestor; | ||
| } | ||
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| ref.isContext = key[0] === contextPrefix; | ||
| if (!ref.isContext && | ||
| key[0] === separator) { | ||
| this.display = internals.display(key, separator, this.settings.ancestor); | ||
| } | ||
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| key = key.slice(1); | ||
| settings.self = true; | ||
| this.key = key; | ||
| this.ancestor = this.settings.ancestor; | ||
| this.path = this.key.split(separator); | ||
| this.depth = this.path.length; | ||
| this.root = this.path[0]; | ||
| } | ||
|
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| ref.key = ref.isContext ? key.slice(1) : key; | ||
| ref.path = ref.key.split(separator); | ||
| ref.depth = ref.path.length; | ||
| ref.root = ref.path[0]; | ||
| ref.isJoi = true; | ||
| resolve(value, state, options = {}) { | ||
|
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| ref.toString = () => { | ||
| const ancestor = this.settings.ancestor; | ||
| Hoek.assert(!ancestor || ancestor <= state.ancestors.length, 'Invalid reference exceeds the schema root:', this.display); | ||
|
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| return (ref.isContext ? 'context:' : 'ref:') + ref.key; | ||
| }; | ||
| const target = this.isContext ? options.context : (ancestor ? state.ancestors[ancestor - 1] : value); | ||
| return Hoek.reach(target, this.key, this.settings); | ||
| } | ||
|
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| toString() { | ||
|
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| ref.describe = () => { | ||
| return this.display; | ||
| } | ||
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| describe() { | ||
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| return { | ||
| type: ref.isContext ? 'context' : 'ref', | ||
| key: ref.key, | ||
| path: ref.path | ||
| type: this.isContext ? 'context' : 'ref', | ||
| key: this.key, | ||
| path: this.path | ||
| }; | ||
| }; | ||
| } | ||
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| static isRef(ref) { | ||
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| return ref; | ||
| return ref && !!ref[internals.symbol]; | ||
| } | ||
| }; | ||
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| exports.isRef = function (ref) { | ||
| internals.ancestor = function (key, separator) { | ||
|
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| return typeof ref === 'function' && ref.isJoi; | ||
| if (key[0] !== separator) { // 'a.b' -> 1 (parent) | ||
| return [1, 0]; | ||
| } | ||
|
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| if (key[1] !== separator) { // '.a.b' -> 0 (self) | ||
| return [0, 1]; | ||
| } | ||
|
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| let i = 2; | ||
| while (key[i] === separator) { | ||
| ++i; | ||
| } | ||
|
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| return [i - 1, i]; // '...a.b.' -> 2 (grandparent) | ||
| }; | ||
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|
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| exports.push = function (array, ref) { | ||
| internals.display = function (key, separator, ancestor) { | ||
|
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| if (!ancestor) { | ||
| return `ref:${separator}${key}`; | ||
| } | ||
|
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| if (ancestor === 1) { | ||
| return `ref:${key}`; | ||
| } | ||
|
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| return `ref:${new Array(3).fill('.').join('')}${key}`; | ||
| }; | ||
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| internals.Ref.toSibling = 0; | ||
| internals.Ref.toParent = 1; | ||
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| internals.Ref.Manager = class { | ||
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| constructor() { | ||
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| this.refs = []; // 0: [self refs], 1: [parent refs], 2: [grandparent refs], ... | ||
| } | ||
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| register(source, target = internals.Ref.toParent) { | ||
|
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| if (!source) { | ||
| return; | ||
| } | ||
|
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| // Any | ||
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| if (Utils.isSchema(source)) { | ||
| for (const item of source._refs.refs) { | ||
| if (item.ancestor - target >= 0) { | ||
| this.refs.push({ ancestor: item.ancestor - target, root: item.root }); | ||
| } | ||
| } | ||
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| return; | ||
| } | ||
|
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| // Reference | ||
|
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| if (internals.Ref.isRef(source) && | ||
| !source.isContext && | ||
| source.ancestor - target >= 0) { | ||
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| this.refs.push({ ancestor: source.ancestor - target, root: source.root }); | ||
| } | ||
| } | ||
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| clone() { | ||
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| const copy = new internals.Ref.Manager(); | ||
| copy.refs = Hoek.clone(this.refs); | ||
| return copy; | ||
| } | ||
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| if (exports.isRef(ref) && | ||
| !ref.isContext) { | ||
| roots() { | ||
|
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| array.push(ref.root); | ||
| return this.refs.filter((ref) => !ref.ancestor).map((ref) => ref.root); | ||
| } | ||
| }; |
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