1 | 'use strict';
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2 |
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3 | const Assert = require('@hapi/hoek/lib/assert');
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4 |
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5 | const Common = require('./common');
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6 | const Ref = require('./ref');
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7 |
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8 |
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9 | const internals = {};
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10 |
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11 |
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12 |
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13 | exports.Ids = internals.Ids = class {
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14 |
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15 | constructor() {
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16 |
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17 | this._byId = new Map();
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18 | this._byKey = new Map();
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19 | this._schemaChain = false;
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20 | }
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21 |
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22 | clone() {
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23 |
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24 | const clone = new internals.Ids();
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25 | clone._byId = new Map(this._byId);
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26 | clone._byKey = new Map(this._byKey);
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27 | clone._schemaChain = this._schemaChain;
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28 | return clone;
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29 | }
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30 |
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31 | concat(source) {
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32 |
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33 | if (source._schemaChain) {
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34 | this._schemaChain = true;
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35 | }
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36 |
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37 | for (const [id, value] of source._byId.entries()) {
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38 | Assert(!this._byKey.has(id), 'Schema id conflicts with existing key:', id);
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39 | this._byId.set(id, value);
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40 | }
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41 |
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42 | for (const [key, value] of source._byKey.entries()) {
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43 | Assert(!this._byId.has(key), 'Schema key conflicts with existing id:', key);
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44 | this._byKey.set(key, value);
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45 | }
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46 | }
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47 |
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48 | fork(path, adjuster, root) {
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49 |
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50 | const chain = this._collect(path);
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51 | chain.push({ schema: root });
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52 | const tail = chain.shift();
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53 | let adjusted = { id: tail.id, schema: adjuster(tail.schema) };
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54 |
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55 | Assert(Common.isSchema(adjusted.schema), 'adjuster function failed to return a joi schema type');
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56 |
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57 | for (const node of chain) {
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58 | adjusted = { id: node.id, schema: internals.fork(node.schema, adjusted.id, adjusted.schema) };
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59 | }
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60 |
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61 | return adjusted.schema;
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62 | }
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63 |
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64 | labels(path, behind = []) {
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65 |
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66 | const current = path[0];
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67 | const node = this._get(current);
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68 | if (!node) {
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69 | return [...behind, ...path].join('.');
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70 | }
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71 |
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72 | const forward = path.slice(1);
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73 | behind = [...behind, node.schema._flags.label || current];
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74 | if (!forward.length) {
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75 | return behind.join('.');
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76 | }
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77 |
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78 | return node.schema._ids.labels(forward, behind);
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79 | }
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80 |
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81 | reach(path, behind = []) {
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82 |
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83 | const current = path[0];
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84 | const node = this._get(current);
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85 | Assert(node, 'Schema does not contain path', [...behind, ...path].join('.'));
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86 |
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87 | const forward = path.slice(1);
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88 | if (!forward.length) {
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89 | return node.schema;
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90 | }
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91 |
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92 | return node.schema._ids.reach(forward, [...behind, current]);
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93 | }
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94 |
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95 | register(schema, { key } = {}) {
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96 |
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97 | if (!schema ||
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98 | !Common.isSchema(schema)) {
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99 |
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100 | return;
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101 | }
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102 |
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103 | if (schema.$_property('schemaChain') ||
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104 | schema._ids._schemaChain) {
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105 |
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106 | this._schemaChain = true;
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107 | }
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108 |
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109 | const id = schema._flags.id;
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110 | if (id) {
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111 | const existing = this._byId.get(id);
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112 | Assert(!existing || existing.schema === schema, 'Cannot add different schemas with the same id:', id);
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113 | Assert(!this._byKey.has(id), 'Schema id conflicts with existing key:', id);
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114 |
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115 | this._byId.set(id, { schema, id });
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116 | }
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117 |
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118 | if (key) {
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119 | Assert(!this._byKey.has(key), 'Schema already contains key:', key);
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120 | Assert(!this._byId.has(key), 'Schema key conflicts with existing id:', key);
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121 |
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122 | this._byKey.set(key, { schema, id: key });
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123 | }
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124 | }
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125 |
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126 | reset() {
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127 |
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128 | this._byId = new Map();
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129 | this._byKey = new Map();
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130 | this._schemaChain = false;
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131 | }
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132 |
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133 | _collect(path, behind = [], nodes = []) {
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134 |
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135 | const current = path[0];
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136 | const node = this._get(current);
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137 | Assert(node, 'Schema does not contain path', [...behind, ...path].join('.'));
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138 |
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139 | nodes = [node, ...nodes];
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140 |
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141 | const forward = path.slice(1);
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142 | if (!forward.length) {
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143 | return nodes;
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144 | }
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145 |
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146 | return node.schema._ids._collect(forward, [...behind, current], nodes);
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147 | }
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148 |
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149 | _get(id) {
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150 |
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151 | return this._byId.get(id) || this._byKey.get(id);
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152 | }
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153 | };
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154 |
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155 |
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156 | internals.fork = function (schema, id, replacement) {
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157 |
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158 | const each = (item, { key }) => {
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159 |
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160 | if (id === (item._flags.id || key)) {
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161 | return replacement;
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162 | }
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163 | };
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164 |
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165 | const obj = exports.schema(schema, { each, ref: false });
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166 | return obj ? obj.$_mutateRebuild() : schema;
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167 | };
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168 |
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169 |
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170 | exports.schema = function (schema, options) {
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171 |
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172 | let obj;
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173 |
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174 | for (const name in schema._flags) {
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175 | if (name[0] === '_') {
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176 | continue;
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177 | }
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178 |
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179 | const result = internals.scan(schema._flags[name], { source: 'flags', name }, options);
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180 | if (result !== undefined) {
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181 | obj = obj || schema.clone();
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182 | obj._flags[name] = result;
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183 | }
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184 | }
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185 |
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186 | for (let i = 0; i < schema._rules.length; ++i) {
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187 | const rule = schema._rules[i];
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188 | const result = internals.scan(rule.args, { source: 'rules', name: rule.name }, options);
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189 | if (result !== undefined) {
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190 | obj = obj || schema.clone();
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191 | const clone = Object.assign({}, rule);
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192 | clone.args = result;
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193 | obj._rules[i] = clone;
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194 |
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195 | const existingUnique = obj._singleRules.get(rule.name);
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196 | if (existingUnique === rule) {
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197 | obj._singleRules.set(rule.name, clone);
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198 | }
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199 | }
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200 | }
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201 |
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202 | for (const name in schema.$_terms) {
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203 | if (name[0] === '_') {
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204 | continue;
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205 | }
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206 |
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207 | const result = internals.scan(schema.$_terms[name], { source: 'terms', name }, options);
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208 | if (result !== undefined) {
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209 | obj = obj || schema.clone();
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210 | obj.$_terms[name] = result;
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211 | }
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212 | }
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213 |
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214 | return obj;
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215 | };
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216 |
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217 |
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218 | internals.scan = function (item, source, options, _path, _key) {
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219 |
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220 | const path = _path || [];
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221 |
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222 | if (item === null ||
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223 | typeof item !== 'object') {
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224 |
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225 | return;
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226 | }
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227 |
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228 | let clone;
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229 |
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230 | if (Array.isArray(item)) {
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231 | for (let i = 0; i < item.length; ++i) {
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232 | const key = source.source === 'terms' && source.name === 'keys' && item[i].key;
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233 | const result = internals.scan(item[i], source, options, [i, ...path], key);
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234 | if (result !== undefined) {
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235 | clone = clone || item.slice();
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236 | clone[i] = result;
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237 | }
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238 | }
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239 |
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240 | return clone;
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241 | }
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242 |
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243 | if (options.schema !== false && Common.isSchema(item) ||
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244 | options.ref !== false && Ref.isRef(item)) {
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245 |
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246 | const result = options.each(item, { ...source, path, key: _key });
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247 | if (result === item) {
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248 | return;
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249 | }
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250 |
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251 | return result;
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252 | }
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253 |
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254 | for (const key in item) {
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255 | if (key[0] === '_') {
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256 | continue;
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257 | }
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258 |
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259 | const result = internals.scan(item[key], source, options, [key, ...path], _key);
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260 | if (result !== undefined) {
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261 | clone = clone || Object.assign({}, item);
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262 | clone[key] = result;
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263 | }
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264 | }
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265 |
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266 | return clone;
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267 | };
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