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lsym_lbrace.c revision 1.5 
      1 /* $NetBSD: lsym_lbrace.c,v 1.5 2022/04/23 09:59:14 rillig Exp $ */
      2 
      3 /*
      4  * Tests for the token lsym_lbrace, which represents a '{' in these contexts:
      5  *
      6  * In an initializer, '{' starts an inner group of initializers, usually to
      7  * initialize a nested struct, union or array.
      8  *
      9  * In a function body, '{' starts a block.
     10  *
     11  * In an expression, '(type){' starts a compound literal that is typically
     12  * used in an assignment to a struct or array.
     13  *
     14  * In macro arguments, a '{' is an ordinary character, it does not need to be
     15  * balanced.  This is in contrast to '(', which must be balanced with ')'.
     16  *
     17  * TODO: try to split this token into lsym_lbrace_block and lsym_lbrace_init.
     18  */
     19 
     20 /* Brace level in an initializer */
     21 #indent input
     22 void
     23 function(void)
     24 {
     25 	struct person	p = {
     26 		.name = "Name",
     27 		.age = {{{35}}},	/* C11 6.7.9 allows this. */
     28 	};
     29 }
     30 #indent end
     31 
     32 #indent run-equals-input
     33 
     34 
     35 /* Begin of a block of statements */
     36 #indent input
     37 void function(void) {{{ body(); }}}
     38 #indent end
     39 
     40 #indent run
     41 void
     42 function(void)
     43 /* $ FIXME: Each '{' must be properly indented. */
     44 {{{
     45 			body();
     46 }
     47 }
     48 }
     49 #indent end
     50 
     51 
     52 /* Compound literal */
     53 #indent input
     54 struct point
     55 origin(void)
     56 {
     57 	return (struct point){
     58 		.x = 0,
     59 		.y = 0,
     60 	};
     61 }
     62 #indent end
     63 
     64 #indent run
     65 struct point
     66 origin(void)
     67 {
     68 	return (struct point){
     69 		.x = 0,
     70 /* $ FIXME: All initializers must be indented to the same level. */
     71 			.y = 0,
     72 	};
     73 }
     74 #indent end
     75