Input {:?} quickly in vim

Add this line into your vimrc:

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autocmd FileType rust inoremap <leader>d {:?}

In vim insert mode, if you try \d, vim will convert that into {:?}.

Find out the type name of specific variable when debugging

Add this line to your code

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let a: () = var;

You will got compile failure with type name of your variable.

Speed up the compiling with lld linker

In Fedora/RHEL/CentOS, you may:

• Add this to you .bashrc: export RUSTFLAGS="-C link-arg=-fuse-ld=lld"
• Install lld: sudo dnf install lld -y