Function parseColorWithCache

src/utils/color.ts:22–38

($color: string)

const rgbaParseCache = new Map<string, RGBA>();

export function parseColorWithCache($color: string): RGBA | null {
    $color = $color.trim();
    if (rgbaParseCache.has($color)) {
        return rgbaParseCache.get($color)!;
    }
    // We cannot _really_ parse any color which has the calc() expression,
    // so we try our best to remove those and then parse the value.
    if ($color.includes('calc(')) {
        $color = lowerCalcExpression($color);
    }
    const color = parse($color);
    if (color) {
        rgbaParseCache.set($color, color);
        return color;
    }
    return null;
}

export function parseToHSLWithCache(color: string): HSLA | null {
    if (hslaParseCache.has(color)) {