SOURCE_FILE
  FN
    ATTR
      POUND "#"
      L_BRACK "["
      CFG_META
        CFG_KW "cfg"
        L_PAREN "("
        CFG_ATOM
          IDENT "test"
        R_PAREN ")"
      R_BRACK "]"
    WHITESPACE "\n"
    ATTR
      POUND "#"
      L_BRACK "["
      PATH_META
        PATH
          PATH_SEGMENT
            NAME_REF
              IDENT "Ignore"
      R_BRACK "]"
    WHITESPACE "\n"
    FN_KW "fn"
    WHITESPACE " "
    NAME
      IDENT "foo"
    PARAM_LIST
      L_PAREN "("
      R_PAREN ")"
    WHITESPACE " "
    BLOCK_EXPR
      STMT_LIST
        L_CURLY "{"
        R_CURLY "}"
  WHITESPACE "\n\n"
  MODULE
    ATTR
      POUND "#"
      L_BRACK "["
      KEY_VALUE_META
        PATH
          PATH_SEGMENT
            NAME_REF
              IDENT "path"
        WHITESPACE " "
        EQ "="
        WHITESPACE " "
        LITERAL
          STRING "\"a.rs\""
      R_BRACK "]"
    WHITESPACE "\n"
    MOD_KW "mod"
    WHITESPACE " "
    NAME
      IDENT "b"
    SEMICOLON ";"
  WHITESPACE "\n"
