1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
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 "
LET_STMT
LET_KW "let"
WHITESPACE " "
REF_PAT
AMP "&"
IDENT_PAT
NAME
IDENT "a"
WHITESPACE " "
EQ "="
WHITESPACE " "
TUPLE_EXPR
L_PAREN "("
R_PAREN ")"
SEMICOLON ";"
WHITESPACE "\n "
LET_STMT
LET_KW "let"
WHITESPACE " "
REF_PAT
AMP "&"
MUT_KW "mut"
WHITESPACE " "
IDENT_PAT
NAME
IDENT "b"
WHITESPACE " "
EQ "="
WHITESPACE " "
TUPLE_EXPR
L_PAREN "("
R_PAREN ")"
SEMICOLON ";"
WHITESPACE "\n"
R_CURLY "}"
WHITESPACE "\n"