[Plugin] Provide file relative/absolute path in context

[g-plane]

Describe the feature

Currently there're only 3 items provided in plugin context:

• file name
• env
• cwd

I'd propose to add a new context information: file path. This can be relative path or absolute path. I'm creating a plugin that will inject some debug info which requires file path, but SWC can't provide this to plugin now.

Babel plugin or link to the feature description

No response

Additional context

No response

[kwonoj]

swc/crates/swc_common/src/plugin/metadata.rs

Lines 55 to 57 in 6124573

	/// The path of the file being processed. This includes all of the path as
	/// much as possible.
	pub filename: Option<String>,

Filename supposed to include paths if possible. In my opinion if that doesn't work for some cases it needs to be correctly extended instead of trying to add new context.

[g-plane]

It doesn't work for me, because it's just the file name, not path. How can I get the path?

[kdy1]

It passes the filename provided by the user. Can you try using full path for transformFile or passing a full path to file as filename to transform?

[g-plane]

I'm just using @swc/cli, not via API. How can I pass it?

[ousiri]

How to access this metadata inside TransformVisitor for swc plugin?

[coder-xiaotian]

you can fork my repository, I used get_context to get the file path in my code. https://github.com/coder-xiaotian/swc-useclient/

It should be noted that you need to set lto=false in Cargo.toml.