SOURCE_FILE
  FN
    FN_KW "fn"
    WHITESPACE " "
    NAME
      IDENT "main"
    PARAM_LIST
      L_PAREN "("
      R_PAREN ")"
    WHITESPACE " "
    BLOCK_EXPR
      STMT_LIST
        L_CURLY "{"
        WHITESPACE "\n    "
        MATCH_EXPR
          MATCH_KW "match"
          WHITESPACE " "
          LITERAL
            INT_NUMBER "42"
          WHITESPACE " "
          MATCH_ARM_LIST
            L_CURLY "{"
            WHITESPACE "\n        "
            MATCH_ARM
              RANGE_PAT
                DOT2 ".."
                LITERAL_PAT
                  LITERAL
                    INT_NUMBER "0"
              WHITESPACE " "
              FAT_ARROW "=>"
              WHITESPACE " "
              BLOCK_EXPR
                STMT_LIST
                  L_CURLY "{"
                  R_CURLY "}"
            WHITESPACE "\n        "
            MATCH_ARM
              RANGE_PAT
                LITERAL_PAT
                  LITERAL
                    INT_NUMBER "1"
                DOT2 ".."
                LITERAL_PAT
                  LITERAL
                    INT_NUMBER "2"
              WHITESPACE " "
              FAT_ARROW "=>"
              WHITESPACE " "
              BLOCK_EXPR
                STMT_LIST
                  L_CURLY "{"
                  R_CURLY "}"
            WHITESPACE "\n    "
            R_CURLY "}"
        WHITESPACE "\n"
        R_CURLY "}"
  WHITESPACE "\n"
