Function renderChunk

packages/vite/src/workerPlugin.ts:138–186

(code, chunk, outputOptions)

        },

        renderChunk(code, chunk, outputOptions) {
            // when building the worker URLs are replaced with some placeholders
            // here we replace those placeholders with the final file names respecting chunks

            let s: MagicString;
            const result = () => {
                return (
                    s && {
                        code: s.toString(),
                        map: resolvedConfig.build.sourcemap ? s.generateMap({ hires: 'boundary' }) : null
                    }
                );
            };
            workerAssetUrlRE.lastIndex = 0;
            if (workerAssetUrlRE.test(code)) {
                const toRelativeRuntime = createToImportMetaURLBasedRelativeRuntime(
                    outputOptions.format,
                    resolvedConfig.isWorker
                );

                s = new MagicString(code);
                workerAssetUrlRE.lastIndex = 0;

                // Replace "VITE_WORKER_ASSET__5aa0ddc0" using relative paths
                const workerMap = workerCache.get(resolvedConfig.mainConfig || resolvedConfig)!;
                const { fileNameHash } = workerMap;

                let match: RegExpExecArray | null = workerAssetUrlRE.exec(code);
                while (match) {
                    const [full, hash] = match;
                    const filename = fileNameHash.get(hash)!;
                    const replacement = toOutputFilePathInJS(
                        filename,
                        'asset',
                        chunk.fileName,
                        'js',
                        resolvedConfig,
                        toRelativeRuntime
                    );
                    const replacementString =
                        typeof replacement === 'string'
                            ? JSON.stringify(encodeURIPath(replacement)).slice(1, -1)
                            : `"+${replacement.runtime}+"`;
                    s.update(match.index, match.index + full.length, replacementString);
                    match = workerAssetUrlRE.exec(code);
                }
            }
            return result();
        },

        generateBundle(_, bundle) {
            if (isWorker) {