lsym_lbrace.c revision 1.7 1 1.7 rillig /* $NetBSD: lsym_lbrace.c,v 1.7 2023/06/03 21:44:08 rillig Exp $ */
2 1.1 rillig
3 1.1 rillig /*
4 1.1 rillig * Tests for the token lsym_lbrace, which represents a '{' in these contexts:
5 1.1 rillig *
6 1.1 rillig * In an initializer, '{' starts an inner group of initializers, usually to
7 1.1 rillig * initialize a nested struct, union or array.
8 1.1 rillig *
9 1.1 rillig * In a function body, '{' starts a block.
10 1.1 rillig *
11 1.3 rillig * In an expression, '(type){' starts a compound literal that is typically
12 1.1 rillig * used in an assignment to a struct or array.
13 1.2 rillig *
14 1.5 rillig * In macro arguments, a '{' is an ordinary character, it does not need to be
15 1.5 rillig * balanced. This is in contrast to '(', which must be balanced with ')'.
16 1.5 rillig *
17 1.2 rillig * TODO: try to split this token into lsym_lbrace_block and lsym_lbrace_init.
18 1.1 rillig */
19 1.1 rillig
20 1.5 rillig /* Brace level in an initializer */
21 1.6 rillig //indent input
22 1.5 rillig void
23 1.5 rillig function(void)
24 1.5 rillig {
25 1.5 rillig struct person p = {
26 1.5 rillig .name = "Name",
27 1.5 rillig .age = {{{35}}}, /* C11 6.7.9 allows this. */
28 1.5 rillig };
29 1.5 rillig }
30 1.6 rillig //indent end
31 1.1 rillig
32 1.6 rillig //indent run-equals-input
33 1.5 rillig
34 1.5 rillig
35 1.5 rillig /* Begin of a block of statements */
36 1.6 rillig //indent input
37 1.5 rillig void function(void) {{{ body(); }}}
38 1.6 rillig //indent end
39 1.5 rillig
40 1.6 rillig //indent run
41 1.5 rillig void
42 1.5 rillig function(void)
43 1.7 rillig {
44 1.7 rillig {
45 1.7 rillig {
46 1.5 rillig body();
47 1.7 rillig }
48 1.7 rillig }
49 1.5 rillig }
50 1.6 rillig //indent end
51 1.5 rillig
52 1.5 rillig
53 1.5 rillig /* Compound literal */
54 1.6 rillig //indent input
55 1.5 rillig struct point
56 1.5 rillig origin(void)
57 1.5 rillig {
58 1.5 rillig return (struct point){
59 1.5 rillig .x = 0,
60 1.5 rillig .y = 0,
61 1.5 rillig };
62 1.5 rillig }
63 1.6 rillig //indent end
64 1.5 rillig
65 1.6 rillig //indent run
66 1.5 rillig struct point
67 1.5 rillig origin(void)
68 1.5 rillig {
69 1.5 rillig return (struct point){
70 1.5 rillig .x = 0,
71 1.5 rillig /* $ FIXME: All initializers must be indented to the same level. */
72 1.5 rillig .y = 0,
73 1.5 rillig };
74 1.5 rillig }
75 1.6 rillig //indent end
76