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index.ts
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index.ts
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import { SuperJSONResult, SuperJSONValue, Class, JSONValue } from './types';
import { ClassRegistry, RegisterOptions } from './class-registry';
import { Registry } from './registry';
import {
CustomTransfomer,
CustomTransformerRegistry,
} from './custom-transformer-registry';
import {
walker,
applyReferentialEqualityAnnotations,
applyValueAnnotations,
generateReferentialEqualityAnnotations,
} from './plainer';
import { copy } from 'copy-anything';
export default class SuperJSON {
serialize(object: SuperJSONValue): SuperJSONResult {
const identities = new Map<any, any[][]>();
const output = walker(object, identities, this);
const res: SuperJSONResult = {
json: output.transformedValue,
};
if (output.annotations) {
res.meta = {
...res.meta,
values: output.annotations,
};
}
const equalityAnnotations = generateReferentialEqualityAnnotations(
identities
);
if (equalityAnnotations) {
res.meta = {
...res.meta,
referentialEqualities: equalityAnnotations,
};
}
return res;
}
deserialize<T = unknown>(payload: SuperJSONResult): T {
const { json, meta } = payload;
let result: T = copy(json) as any;
if (meta?.values) {
result = applyValueAnnotations(result, meta.values, this);
}
if (meta?.referentialEqualities) {
result = applyReferentialEqualityAnnotations(
result,
meta.referentialEqualities
);
}
return result;
}
stringify(object: SuperJSONValue): string {
return JSON.stringify(this.serialize(object));
}
parse<T = unknown>(string: string): T {
return this.deserialize(JSON.parse(string));
}
readonly classRegistry = new ClassRegistry();
registerClass(v: Class, options?: RegisterOptions | string) {
this.classRegistry.register(v, options);
}
readonly symbolRegistry = new Registry<Symbol>(s => s.description ?? '');
registerSymbol(v: Symbol, identifier?: string) {
this.symbolRegistry.register(v, identifier);
}
readonly customTransformerRegistry = new CustomTransformerRegistry();
registerCustom<I, O extends JSONValue>(
transformer: Omit<CustomTransfomer<I, O>, 'name'>,
name: string
) {
this.customTransformerRegistry.register({
name,
...transformer,
});
}
readonly allowedErrorProps: string[] = [];
allowErrorProps(...props: string[]) {
this.allowedErrorProps.push(...props);
}
private static defaultInstance = new SuperJSON();
static serialize = SuperJSON.defaultInstance.serialize.bind(
SuperJSON.defaultInstance
);
static deserialize = SuperJSON.defaultInstance.deserialize.bind(
SuperJSON.defaultInstance
);
static stringify = SuperJSON.defaultInstance.stringify.bind(
SuperJSON.defaultInstance
);
static parse = SuperJSON.defaultInstance.parse.bind(
SuperJSON.defaultInstance
);
static registerClass = SuperJSON.defaultInstance.registerClass.bind(
SuperJSON.defaultInstance
);
static registerSymbol = SuperJSON.defaultInstance.registerSymbol.bind(
SuperJSON.defaultInstance
);
static registerCustom = SuperJSON.defaultInstance.registerCustom.bind(
SuperJSON.defaultInstance
);
static allowErrorProps = SuperJSON.defaultInstance.allowErrorProps.bind(
SuperJSON.defaultInstance
);
}
export const serialize = SuperJSON.serialize;
export const deserialize = SuperJSON.deserialize;
export const stringify = SuperJSON.stringify;
export const parse = SuperJSON.parse;
export const registerClass = SuperJSON.registerClass;
export const registerCustom = SuperJSON.registerCustom;
export const registerSymbol = SuperJSON.registerSymbol;
export const allowErrorProps = SuperJSON.allowErrorProps;