Function getCacheKey

src/createPalette.tsx:10–38

(
  source: ImageSourcePropType,
  options: PaletteOptions & { target?: PaletteTarget }
)

} from './types';

export function getCacheKey(
  source: ImageSourcePropType,
  options: PaletteOptions & { target?: PaletteTarget }
): string {
  const uri = Image.resolveAssetSource(source)?.uri ?? '';

  function serialize(obj: any): string {
    if (obj == null) {
      return '';
    }

    if (typeof obj !== 'object') {
      return String(obj);
    }

    if (Array.isArray(obj)) {
      return obj.map(serialize).join(',');
    }

    return Object.entries(obj)
      .sort(([a], [b]) => a.localeCompare(b))
      .map(([k, v]) => `${k}:${serialize(v)}`)
      .join(',');
  }

  const optionsStr = serialize(options);

  return [uri, optionsStr].filter(Boolean).join('|');
}

export const paletteCache = new Map<string, PaletteResult>();
export const swatchCache = new Map<string, PaletteSwatch>();