JSON.parse error in sourcemapTool

[StarHeartHunt]

I got this error when building production bundles with rsdoctor enabled after updating to rsdoctor 1.2 today. By digging into rsdoctor and rspack's source code, it seems rspack doesn't return map file on sourceAndMap() call with my main bundle file, which actually has a source map.

rsdoctor/packages/core/src/inner-plugins/plugins/sourcemapTool.ts

Line 314 in 92f071a

map = asset.source?.sourceAndMap?.()?.map || null;

Version

  System:
    OS: macOS 15.6
    CPU: (14) arm64 Apple M4 Pro
    Memory: 2.18 GB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Browsers:
    Chrome: 139.0.7258.68
    Safari: 18.6
  npmPackages:
    @rsdoctor/cli: ^1.2.1 => 1.2.1 
    @rsdoctor/rspack-plugin: ^1.2.2 => 1.2.2 

Stacktrace

error   Failed to build.
error     × SyntaxError: Unexpected token ( in JSON at position 0
  │     at JSON.parse (<anonymous>)
  │     at handleAfterEmitAssets (/<repo>/node_modules/@rsdoctor/core/dist/inner-plugins/plugins/sourcemapTool.js:109:52)
  │     at async /<repo>/node_modules/@rsdoctor/core/dist/inner-plugins/plugins/ensureModulesChunkGraph.js:60:9
  │ 

[yifancong]

What‘s the version of rspack ? If you open the source map by the devtool option? @StarHeartHunt

[StarHeartHunt]

I am using @rsbuild/[email protected] which depends on @rspack/[email protected], the source map is enabled by the following config:

output: {
    sourceMap: {
        js: 'source-map',
        css: true,
    },
}

[StarHeartHunt]

rsdoctor/packages/core/src/inner-plugins/plugins/sourcemapTool.ts

Lines 162 to 169 in 92f071a

	for (const asset of assets) {
	const { assetLinesCodeList, map: mapFromAsset } = parseAsset(
	asset,
	assets,
	'js/css',
	);
	let map = mapFromAsset;
	if (!map) {

The asset here has a related sourceMap field if that helps. Let me know if you need more information to diagnose this problem. :)

{
  name: 'static/js/main.bundle.js',
  info: {
    minimized: true,
    fullhash: [],
    chunkhash: [],
    contenthash: [],
    javascriptModule: false,
    related: { sourceMap: 'static/js/main.bundle.js.map' },
    isOverSizeLimit: false
  }
}

[StarHeartHunt]

Update: Just noticed that this error won't occurred if i set output.sourceMap.js to cheap-module-source-map or cheap-source-map.

[yifancong]

Update: Just noticed that this error won't occurred if i set output.sourceMap.js to cheap-module-source-map or cheap-source-map.

Okay, I will fix it quickly.

[StarHeartHunt]

fixed with v1.2.3, thanks!