@hyperlane-xyz/sdk/dist/token/TokenMetadataMap.js

The official SDK for the Hyperlane Network

import { assert } from '@hyperlane-xyz/utils';
import { verifyScale } from '../utils/decimals.js';
export class TokenMetadataMap {
    tokenMetadataMap;
    constructor() {
        this.tokenMetadataMap = new Map();
    }
    set(chain, metadata) {
        this.tokenMetadataMap.set(chain, metadata);
    }
    getDecimals(chain) {
        const config = this.tokenMetadataMap.get(chain);
        if (config)
            return config.decimals;
        return [...this.tokenMetadataMap.values()].find((config) => config?.decimals)?.decimals;
    }
    getMetadataForChain(chain) {
        return this.tokenMetadataMap.get(chain);
    }
    getName(chain) {
        const config = this.tokenMetadataMap.get(chain);
        if (config?.name)
            return config.name;
        for (const [, meta] of this.tokenMetadataMap) {
            if (meta.name)
                return meta.name;
        }
        return undefined;
    }
    getScale(chain) {
        return this.tokenMetadataMap.get(chain)?.scale;
    }
    getSymbol(chain) {
        const symbol = this.tokenMetadataMap.get(chain)?.symbol;
        if (symbol)
            return symbol;
        return this.getDefaultSymbol();
    }
    getDefaultSymbol() {
        for (const [, metadata] of this.tokenMetadataMap) {
            if (metadata.symbol)
                return metadata.symbol;
        }
        throw new Error('No symbol found in token metadata map.');
    }
    finalize() {
        assert([...this.tokenMetadataMap.values()].every((config) => !!config.decimals), 'All decimals must be defined');
        assert(verifyScale(this.tokenMetadataMap), `Found invalid or missing scale for inconsistent decimals`);
    }
}
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