next/dist/lib/is-serializable-props.js

The React Framework

"use strict";exports.__esModule=true;exports.isSerializableProps=isSerializableProps;exports.SerializableError=void 0;const regexpPlainIdentifier=/^[A-Za-z_$][A-Za-z0-9_$]*$/;function isPlainObject(value){if(Object.prototype.toString.call(value)!=='[object Object]'){return false;}const prototype=Object.getPrototypeOf(value);return prototype===null||prototype===Object.prototype;}function isSerializableProps(page,method,input){if(!isPlainObject(input)){throw new SerializableError(page,method,'',`Props must be returned as a plain object from ${method}: \`{ props: { ... } }\`.`);}function visit(visited,value,path){if(visited.has(value)){throw new SerializableError(page,method,path,`Circular references cannot be expressed in JSON (references: \`${visited.get(value)||'(self)'}\`).`);}visited.set(value,path);}function isSerializable(refs,value,path){const type=typeof value;if(// `null` can be serialized, but not `undefined`.
value===null||// n.b. `bigint`, `function`, `symbol`, and `undefined` cannot be
// serialized.
//
// `object` is special-cased below, as it may represent `null`, an Array,
// a plain object, a class, et al.
type==='boolean'||type==='number'||type==='string'){return true;}if(type==='undefined'){throw new SerializableError(page,method,path,'`undefined` cannot be serialized as JSON. Please use `null` or omit this value.');}if(isPlainObject(value)){visit(refs,value,path);if(Object.entries(value).every(([key,nestedValue])=>{const nextPath=regexpPlainIdentifier.test(key)?`${path}.${key}`:`${path}[${JSON.stringify(key)}]`;const newRefs=new Map(refs);return isSerializable(newRefs,key,nextPath)&&isSerializable(newRefs,nestedValue,nextPath);})){return true;}throw new SerializableError(page,method,path,`invariant: Unknown error encountered in Object.`);}if(Array.isArray(value)){visit(refs,value,path);if(value.every((nestedValue,index)=>{const newRefs=new Map(refs);return isSerializable(newRefs,nestedValue,`${path}[${index}]`);})){return true;}throw new SerializableError(page,method,path,`invariant: Unknown error encountered in Array.`);}// None of these can be expressed as JSON:
// const type: "bigint" | "symbol" | "object" | "function"
throw new SerializableError(page,method,path,'`'+type+'`'+(type==='object'?` ("${Object.prototype.toString.call(value)}")`:'')+' cannot be serialized as JSON. Please only return JSON serializable data types.');}return isSerializable(new Map(),input,'');}class SerializableError extends Error{constructor(page,method,path,message){super(path?`Error serializing \`${path}\` returned from \`${method}\` in "${page}".\nReason: ${message}`:`Error serializing props returned from \`${method}\` in "${page}".\nReason: ${message}`);}}exports.SerializableError=SerializableError;
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