fix: json module size (#12189)

LingyuCoder · web-flow · commit b9433772ab36 · 2025-11-13T18:59:27.000+08:00
* fix: json module size

* fix: json module size
diff --git a/crates/rspack_plugin_json/src/lib.rs b/crates/rspack_plugin_json/src/lib.rs
@@ -42,7 +42,12 @@ impl ParserAndGenerator for JsonParserAndGenerator {
   }
 
   fn size(&self, module: &dyn Module, _source_type: Option<&SourceType>) -> f64 {
-    module.source().map_or(0, |source| source.size()) as f64
+    module
+      .build_info()
+      .json_data
+      .as_ref()
+      .map(|data| stringify(data.clone()).len() as f64)
+      .unwrap_or(0.0)
   }
 
   async fn parse<'a>(
diff --git a/tests/rspack-test/statsOutputCases/ignore-warnings/__snapshots__/stats.txt b/tests/rspack-test/statsOutputCases/ignore-warnings/__snapshots__/stats.txt
@@ -1,4 +1,4 @@
 asset main.js 912 bytes [emitted] (name: main)
-orphan modules 797 bytes [orphan] 10 modules
-./index.js + 9 modules 797 bytes [code generated]
+orphan modules 784 bytes [orphan] 10 modules
+./index.js + 9 modules 784 bytes [code generated]
 Rspack x.x.x compiled successfully in X s

Original file line number	Diff line number	Diff line change
`@@ -42,7 +42,12 @@ impl ParserAndGenerator for JsonParserAndGenerator {`
`42`	`42`	`}`
`43`	`43`
`44`	`44`	`fn size(&self, module: &dyn Module, _source_type: Option<&SourceType>) -> f64 {`
`45`		`- module.source().map_or(0, \|source\| source.size()) as f64`
	`45`	`+ module`
	`46`	`+ .build_info()`
	`47`	`+ .json_data`
	`48`	`+ .as_ref()`
	`49`	`+ .map(\|data\| stringify(data.clone()).len() as f64)`
	`50`	`+ .unwrap_or(0.0)`
`46`	`51`	`}`
`47`	`52`
`48`	`53`	`async fn parse<'a>(`