src/doc/rustc-dev-guide/src/part-3-intro.md

   1 # Part 3: Source Code Representations
   2
   3 This part describes the process of taking raw source code from the user and
   4 transforming it into various forms that the compiler can work with easily.
   5 These are called intermediate representations.
   6
   7 This process starts with compiler understanding what the user has asked for:
   8 parsing the command line arguments given and determining what it is to compile.