Experimental Attach Debug Info

In-depth

Each chunk will include a comment explaining the reason why it was created:

Reason	Format	Description
User-defined Entry	User-defined Entry: [Entry-Module-Id: <path>] [Name: Some("<name>")]	Explicit entry point from build config
Dynamic Entry	Dynamic Entry: [Entry-Module-Id: <path>] [Name: None]	Chunk created from import() expression
Common Chunk	Common Chunk: [Shared-By: <entry1>, <entry2>, ...]	Shared modules extracted for multiple entries
Manual Code Splitting	ManualCodeSplitting: [Group-Name: <name>]	Chunk created by output.codeSplitting option
Preserve Modules	Enabling Preserve Module: [User-defined: <bool>] [Module-Id: <path>]	Per-module chunk from output.preserveModules option

When rolldown optimized away empty facade chunks (entry chunks with no modules of their own), the target chunk will include Eliminated Facade Chunk: [Chunk-Name: <name>] [Entry-Module-Id: <path>].