Where is the source code of Rust target components?

Question

When I run

rustup target install wasm32-unknown-unknown

it states

info: downloading component 'rust-std' for 'wasm32-unknown-unknown'

This means that prebuilt binary components are being downloaded. Where is the source code of these components?

Answer 1

You can install the rust-src rustup component for a toolchain, which will be located in $RUSTUP_INSTALLATION_DIRECTORY/toolchains/$TOOLCHAIN/lib/rustlib/src/rust.

The official source code for the Rust project is on GitHub at https://github.com/rust-lang/rust/. The standard library is currently located in the library/std subdirectory, although this has changed over time.

See also:

• Where does rustup install itself to?