Function bundleWorkerEntryRolldown

packages/vite/src/bridge/worker.ts:175–221

(
    config: ResolvedConfig,
    input: string,
    bundlerOptions: any,
    plugins: any,
    generateOptions: any,
    workerEnvironment: BuildEnvironment
)

// Rolldown path (Vite 8+).
async function bundleWorkerEntryRolldown(
    config: ResolvedConfig,
    input: string,
    bundlerOptions: any,
    plugins: any,
    generateOptions: any,
    workerEnvironment: BuildEnvironment
): Promise<BundledWorkerChunk> {
    const { rolldown } = await import('rolldown');
    const workerBuildTarget = workerEnvironment.config.build.target;
    const bundle = await rolldown({
        ...bundlerOptions,
        input,
        plugins,
        transform: {
            target: workerBuildTarget === false ? undefined : workerBuildTarget,
            ...bundlerOptions.transform,
            define: {
                ...bundlerOptions.transform?.define,
                'process.env.NODE_ENV': 'process.env.NODE_ENV'
            }
        },
        moduleTypes: {
            '.css': 'js',
            ...bundlerOptions.moduleTypes
        },
        preserveEntrySignatures: false,
        experimental: {
            ...bundlerOptions.experimental,
            viteMode: true
        }
    });
    try {
        const { output } = await bundle.generate(generateOptions);
        const [outputChunk, ...rest] = output;
        for (const o of rest) {
            if (o.type === 'asset') {
                saveEmitWorkerAsset(config, o);
            } else {
                saveEmitWorkerAsset(config, { fileName: o.fileName, source: o.code });
            }
        }
        return outputChunk;
    } finally {
        await bundle.close();
    }
}

// https://github.com/vitejs/vite/blob/b7ddfae5f852c2948fab03e94751ce56f5f31ce0/packages/vite/src/node/plugins/worker.ts#L124
function emitSourcemapForWorkerEntry(config: ResolvedConfig, chunk: BundledWorkerChunk): BundledWorkerChunk {