1. vscode + rust-analyzer

./x.py setup vscode

2. build

python3 ./x.py build --stage 2

3. tool

export RUSTC=/home/cici/rustc-tooling/build/x86_64-unknown-linux-gnu/stage2/bin/rustc
export RUSTDOC=/home/cici/rustc-tooling/build/x86_64-unknown-linux-gnu/stage2/bin/tooling

Office PC:

export RUSTC=/local/home/zixliu/rustc-tooling/build/x86_64-unknown-linux-gnu/stage2/bin/rustc
export RUSTDOC=/local/home/zixliu/rustc-tooling/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc

4. usage

cargo doc

5. Project structure

Main entrance: ./src/librustdoc/lib.rs::tooling_main_args()

Processing logic: ./src/librustdoc/tooling/mod.rs