1SOURCE_FILE@0..24
2  FN@0..23
3    FN_KW@0..2 "fn"
4    WHITESPACE@2..3 " "
5    NAME@3..6
6      IDENT@3..6 "foo"
7    PARAM_LIST@6..12
8      L_PAREN@6..7 "("
9      PARAM@7..11
10        IDENT_PAT@7..8
11          NAME@7..8
12            IDENT@7..8 "a"
13        COLON@8..9 ":"
14        WHITESPACE@9..10 " "
15        PATH_TYPE@10..11
16          PATH@10..11
17            PATH_SEGMENT@10..11
18              NAME_REF@10..11
19                IDENT@10..11 "A"
20      R_PAREN@11..12 ")"
21    WHITESPACE@12..13 " "
22    BLOCK_EXPR@13..23
23      STMT_LIST@13..23
24        L_CURLY@13..14 "{"
25        WHITESPACE@14..19 "\n    "
26        FIELD_EXPR@19..21
27          PATH_EXPR@19..20
28            PATH@19..20
29              PATH_SEGMENT@19..20
30                NAME_REF@19..20
31                  IDENT@19..20 "a"
32          DOT@20..21 "."
33        WHITESPACE@21..22 "\n"
34        R_CURLY@22..23 "}"
35  WHITESPACE@23..24 "\n"
36error 21..21: expected field name or number
37