@polkadot/types/metadata/util/validateTypes.js

Implementation of the Parity codec

import { logger } from '@polkadot/util';
import { extractTypes } from './extractTypes.js';
import { flattenUniq } from './flattenUniq.js';
const l = logger('metadata');
/** @internal */
export function validateTypes(registry, throwError, types) {
    const missing = flattenUniq(extractTypes(types))
        .filter((type) => !registry.hasType(type) &&
        !registry.isLookupType(type))
        .sort();
    if (missing.length !== 0) {
        const message = `Unknown types found, no types for ${missing.join(', ')}`;
        if (throwError) {
            throw new Error(message);
        }
        else {
            l.warn(message);
        }
    }
    return types;
}