i forgot about commas ...

05/constants.b

@@ -199,7 +199,8 @@
 ;  char, unsigned char, etc.: TYPE_CHAR, TYPE_UNSIGNED_CHAR, etc. as a single byte
 ;  pointer to type t: TYPE_PTR t
 ;  array of n t's: TYPE_ARRAY {n as 8 bytes} t
-;  struct/union: TYPE_STRUCT/TYPE_UNION {0 for incomplete types/4-byte pointer to struct/union}
+;  struct/union: TYPE_STRUCT {8-byte pointer to struct/union data (see structures in main.b)}
+;     note: incomplete structs/unions are replaced with void.
 ;  function: TYPE_FUNCTION {arg1 type} {arg2 type} ... {argn type} 0 {return type}
 ; note that enum types are just treated as ints.
 #define TYPE_VOID 1
@@ -216,7 +217,6 @@
 #define TYPE_DOUBLE 12
 #define TYPE_POINTER 13
 #define TYPE_STRUCT 14
-#define TYPE_UNION 15
 #define TYPE_ARRAY 16
 #define TYPE_FUNCTION 17
 

05/main.b

@@ -30,6 +30,14 @@ global types_bytes_used
 global typedefs
 ; ident list of enum values
 global enumerators
+; struct/union names
+;  an ident list of pointers to struct data (see structures below)
+global struct_names
+; structs and unions
+; each struct/union is an ident list of 64-bit values, (type << 32) | offset
+; for unions, offset will always be 0.
+global structures
+global structures_bytes_used
 
 #include util.b
 #include idents.b
@@ -146,7 +154,8 @@ function main
 	fill_in_powers_of_10()
 	
 	typedefs = ident_list_create(100000)
-	enumerators = ident_list_create(400000)
+	enumerators = ident_list_create(4000000)
+	struct_names = ident_list_create(4000000)
 	
 	dat_banned_objmacros = 255
 	dat_banned_fmacros = 255
@@ -155,6 +164,7 @@ function main
 	*1file_list = 255
 	object_macros = malloc(4000000)
 	function_macros = malloc(4000000)
+	structures = malloc(40000000)
 	
 	types = malloc(16000000)
 	types_init(types, &types_bytes_used)

05/main.c

@@ -3,14 +3,4 @@
 	long double d;
 } (*x)(void);
 */
-typedef int Foo[(char)((unsigned char)0xff + (unsigned char)0xf02)];
+typedef int Foo(struct Bar { int x, y; }*);
-typedef enum {
-	HELLO,
-	THERE,
-	TEST = 1-3,
-	EEE = TEST+4,
-	ASDFASDF,
-	FFF,
-	HELLO2
-} y;
-typedef int Bar[FFF];

05/parse.b

@@ -455,8 +455,27 @@ function parse_type_to
 	*8p_token = suffix_end
 	return out
 	:base_type_struct
-		byte 0xcc ; @TODO
 	:base_type_union
+		p = prefix + 16
+		if *1p != TOKEN_IDENTIFIER goto base_type_struct_definition
+		p += 16
+		if *1p == SYMBOL_LBRACE goto base_type_struct_definition
+		p -= 8
+		c = ident_list_lookup(struct_names, *8p)
+		if c == 0 goto base_type_incomplete_struct
+			; e.g. struct Foo x;  where struct Foo has been defined
+			*1out = TYPE_STRUCT
+			out += 1
+			*8out = c
+			out += 8
+			goto base_type_done
+		:base_type_incomplete_struct
+			; e.g. struct Foo *x;  where struct Foo hasn't been defined
+			*1out = TYPE_VOID
+			out += 1
+			goto base_type_done
+		:base_type_struct_definition
+			if *1p != SYMBOL_LBRACE goto bad_type
 			byte 0xcc ; @TODO
 	:base_type_enum
 		local q
@@ -600,7 +619,6 @@ function type_length
 		return n + 9
 	:type_length_not_array
 	if *1p == TYPE_STRUCT goto return_5
-	if *1p == TYPE_UNION goto return_5
 	if *1p != TYPE_FUNCTION goto type_length_not_function
 		local start
 		start = type
@@ -2056,7 +2074,6 @@ function print_type
 	if c == TYPE_POINTER goto print_type_pointer
 	if c == TYPE_ARRAY goto print_type_array
 	if c == TYPE_STRUCT goto print_type_struct
-	if c == TYPE_UNION goto print_type_union
 	if c == TYPE_FUNCTION goto print_type_function
 	fputs(2, .str_bad_print_type)
 	exit(1)
@@ -2100,8 +2117,6 @@ function print_type
 		goto print_type_top
 	:print_type_struct
 		return puts(.str_struct)
-	:print_type_union
-		return puts(.str_union)
 	:print_type_function
 		type += 1
 		putc(40)