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app_vue/node_modules/joi/lib/extend.js

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+'use strict';
+
+const Assert = require('@hapi/hoek/lib/assert');
+const Clone = require('@hapi/hoek/lib/clone');
+
+const Common = require('./common');
+const Messages = require('./messages');
+
+
+const internals = {};
+
+
+exports.type = function (from, options) {
+
+    const base = Object.getPrototypeOf(from);
+    const prototype = Clone(base);
+    const schema = from._assign(Object.create(prototype));
+    const def = Object.assign({}, options);                                 // Shallow cloned
+    delete def.base;
+
+    prototype._definition = def;
+
+    const parent = base._definition || {};
+    def.messages = Messages.merge(parent.messages, def.messages);
+    def.properties = Object.assign({}, parent.properties, def.properties);
+
+    // Type
+
+    schema.type = def.type;
+
+    // Flags
+
+    def.flags = Object.assign({}, parent.flags, def.flags);
+
+    // Terms
+
+    const terms = Object.assign({}, parent.terms);
+    if (def.terms) {
+        for (const name in def.terms) {                                     // Only apply own terms
+            const term = def.terms[name];
+            Assert(schema.$_terms[name] === undefined, 'Invalid term override for', def.type, name);
+            schema.$_terms[name] = term.init;
+            terms[name] = term;
+        }
+    }
+
+    def.terms = terms;
+
+    // Constructor arguments
+
+    if (!def.args) {
+        def.args = parent.args;
+    }
+
+    // Prepare
+
+    def.prepare = internals.prepare(def.prepare, parent.prepare);
+
+    // Coerce
+
+    if (def.coerce) {
+        if (typeof def.coerce === 'function') {
+            def.coerce = { method: def.coerce };
+        }
+
+        if (def.coerce.from &&
+            !Array.isArray(def.coerce.from)) {
+
+            def.coerce = { method: def.coerce.method, from: [].concat(def.coerce.from) };
+        }
+    }
+
+    def.coerce = internals.coerce(def.coerce, parent.coerce);
+
+    // Validate
+
+    def.validate = internals.validate(def.validate, parent.validate);
+
+    // Rules
+
+    const rules = Object.assign({}, parent.rules);
+    if (def.rules) {
+        for (const name in def.rules) {
+            const rule = def.rules[name];
+            Assert(typeof rule === 'object', 'Invalid rule definition for', def.type, name);
+
+            let method = rule.method;
+            if (method === undefined) {
+                method = function () {
+
+                    return this.$_addRule(name);
+                };
+            }
+
+            if (method) {
+                Assert(!prototype[name], 'Rule conflict in', def.type, name);
+                prototype[name] = method;
+            }
+
+            Assert(!rules[name], 'Rule conflict in', def.type, name);
+            rules[name] = rule;
+
+            if (rule.alias) {
+                const aliases = [].concat(rule.alias);
+                for (const alias of aliases) {
+                    prototype[alias] = rule.method;
+                }
+            }
+
+            if (rule.args) {
+                rule.argsByName = new Map();
+                rule.args = rule.args.map((arg) => {
+
+                    if (typeof arg === 'string') {
+                        arg = { name: arg };
+                    }
+
+                    Assert(!rule.argsByName.has(arg.name), 'Duplicated argument name', arg.name);
+
+                    if (Common.isSchema(arg.assert)) {
+                        arg.assert = arg.assert.strict().label(arg.name);
+                    }
+
+                    rule.argsByName.set(arg.name, arg);
+                    return arg;
+                });
+            }
+        }
+    }
+
+    def.rules = rules;
+
+    // Modifiers
+
+    const modifiers = Object.assign({}, parent.modifiers);
+    if (def.modifiers) {
+        for (const name in def.modifiers) {
+            Assert(!prototype[name], 'Rule conflict in', def.type, name);
+
+            const modifier = def.modifiers[name];
+            Assert(typeof modifier === 'function', 'Invalid modifier definition for', def.type, name);
+
+            const method = function (arg) {
+
+                return this.rule({ [name]: arg });
+            };
+
+            prototype[name] = method;
+            modifiers[name] = modifier;
+        }
+    }
+
+    def.modifiers = modifiers;
+
+    // Overrides
+
+    if (def.overrides) {
+        prototype._super = base;
+        schema.$_super = {};                                                            // Backwards compatibility
+        for (const override in def.overrides) {
+            Assert(base[override], 'Cannot override missing', override);
+            def.overrides[override][Common.symbols.parent] = base[override];
+            schema.$_super[override] = base[override].bind(schema);                     // Backwards compatibility
+        }
+
+        Object.assign(prototype, def.overrides);
+    }
+
+    // Casts
+
+    def.cast = Object.assign({}, parent.cast, def.cast);
+
+    // Manifest
+
+    const manifest = Object.assign({}, parent.manifest, def.manifest);
+    manifest.build = internals.build(def.manifest && def.manifest.build, parent.manifest && parent.manifest.build);
+    def.manifest = manifest;
+
+    // Rebuild
+
+    def.rebuild = internals.rebuild(def.rebuild, parent.rebuild);
+
+    return schema;
+};
+
+
+// Helpers
+
+internals.build = function (child, parent) {
+
+    if (!child ||
+        !parent) {
+
+        return child || parent;
+    }
+
+    return function (obj, desc) {
+
+        return parent(child(obj, desc), desc);
+    };
+};
+
+
+internals.coerce = function (child, parent) {
+
+    if (!child ||
+        !parent) {
+
+        return child || parent;
+    }
+
+    return {
+        from: child.from && parent.from ? [...new Set([...child.from, ...parent.from])] : null,
+        method(value, helpers) {
+
+            let coerced;
+            if (!parent.from ||
+                parent.from.includes(typeof value)) {
+
+                coerced = parent.method(value, helpers);
+                if (coerced) {
+                    if (coerced.errors ||
+                        coerced.value === undefined) {
+
+                        return coerced;
+                    }
+
+                    value = coerced.value;
+                }
+            }
+
+            if (!child.from ||
+                child.from.includes(typeof value)) {
+
+                const own = child.method(value, helpers);
+                if (own) {
+                    return own;
+                }
+            }
+
+            return coerced;
+        }
+    };
+};
+
+
+internals.prepare = function (child, parent) {
+
+    if (!child ||
+        !parent) {
+
+        return child || parent;
+    }
+
+    return function (value, helpers) {
+
+        const prepared = child(value, helpers);
+        if (prepared) {
+            if (prepared.errors ||
+                prepared.value === undefined) {
+
+                return prepared;
+            }
+
+            value = prepared.value;
+        }
+
+        return parent(value, helpers) || prepared;
+    };
+};
+
+
+internals.rebuild = function (child, parent) {
+
+    if (!child ||
+        !parent) {
+
+        return child || parent;
+    }
+
+    return function (schema) {
+
+        parent(schema);
+        child(schema);
+    };
+};
+
+
+internals.validate = function (child, parent) {
+
+    if (!child ||
+        !parent) {
+
+        return child || parent;
+    }
+
+    return function (value, helpers) {
+
+        const result = parent(value, helpers);
+        if (result) {
+            if (result.errors &&
+                (!Array.isArray(result.errors) || result.errors.length)) {
+
+                return result;
+            }
+
+            value = result.value;
+        }
+
+        return child(value, helpers) || result;
+    };
+};