roop

Invoking lldb

• swiftc invokes sub-commands, so you shouldn't run lldb on the swiftc command itself. You can add the -### option to swiftc to see the underlying sub-commands. Pick the correct sub-command, then run lldb -- <command>.

• Usually, we want the first command, so run something like:

  lldb -- `swiftc file.swift | head -n 1`
  

• Use --one-line r to run immediately after loading, without having to set breakopints - great for debugging crashes