dumpct.c
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/* dumpct.c *********************************************************
The Anubis Compiler
Dumping constructors in C format.
********************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include "compil.h"
Expr C_constr_types_list = nil;
void make_C_constr(Expr lc,
Expr file_name,
Expr new_name,
Expr type)
{
Expr implem;
check_explicit_type(lc,type,nil);
find_infinite_types();
infinite_flags_reliable = 1;
implem = implems[type_implementation_id(type,nil)].implem;
infinite_flags_reliable = 0;
if (car(implem) == small_type ||
car(implem) == mixed_type ||
car(implem) == large_type)
C_constr_types_list = cons(mcons3(new_name,type,implem),C_constr_types_list);
}
static char *regular_string_content(Expr x)
{
if (x == pdstr_nil) return "nil";
if (x == pdstr_cons) return "cons";
return string_content(x);
}
void dump_C_types(void)
{
Expr aux;
FILE *h_target = fopenz("construc.h.out","wt");
FILE *c_target = fopenz("construc.c.out","wt");
fprintf(h_target,"/* Generated by the Anubis compiler: constructors in C format.*/\n\n"
"#include \"AnubisAllocator.h\"\n"
"using namespace CM;\n\n"
);
fprintf(c_target,"/* Generated by the Anubis compiler: constructors in C format.*/\n\n"
"/* If memory cannot be allocated, the functions defined below return 0\n"
" * which is a regular value for the garbage-collector. They also set\n"
" * the flag 'dct_error_flag'. Hence, you must test this flag and if it is\n"
" * set, delete the result.\n"
" */\n\n"
);
aux = C_constr_types_list;
while (consp(aux))
{
/* car(aux) = (name type . implem) */
Expr name = car(car(aux));
Expr type = second(car(aux));
Expr implem = cdr2(car(aux));
char *type_name = string_content(name);
Expr alts_implems = cdr3(implem);
int ind = 0;
Expr alts = get_alts(type,nil,0);
aux = cdr(aux);
if(verbose)
{
printf("Dumping constructors in C for '%s' ",type_name);
}
fprintf(h_target,"/* constructors for type '");
show_type(h_target,type,nil);
fprintf(h_target,"': */\n\n");
if (dcti)
{
fprintf(h_target,"/* ");
print_expr(h_target,implem);
fprintf(h_target," */\n\n");
}
switch (car(implem))
{
case small_type:
{
if (verbose) printf("(small type).\n");
/* implem = (small_type <nalt> <iw> <alt geom> ...) */
/* alts_implems = (<alt geom> ...) */
/* <alt geom> = (small_type (<imp> <offset> . <width>) ...) */
/* alts = ((("name" ...) (type . sym) ...) ...) */
while (consp(alts_implems))
{
int k;
Expr aux2;
Expr alt_name = car(car(car(alts)));
Expr geom = cdr(car(alts_implems));
/* geom = ((<imp> <offset> . <width>) ...) */
alts_implems = cdr(alts_implems);
alts = cdr(alts);
fprintf(h_target,
"\n#define %s%s",
type_name,
regular_string_content(alt_name));
if (consp(geom)) fprintf(h_target,"(");
k = 1;
aux2 = geom;
while (consp(aux2))
{
fprintf(h_target,"_%d",k++);
aux2 = cdr(aux2);
if (consp(aux2)) fprintf(h_target,",");
}
if (k >= 2) fprintf(h_target,")");
fprintf(h_target," (%d",ind);
k = 1;
while(consp(geom))
{
fprintf(h_target,"|((_%d)<<%d)",k++,integer_value(second(car(geom))));
geom = cdr(geom);
}
fprintf(h_target,")\n");
ind++; /* next alternative index */
}
}
break;
case mixed_type:
case large_type:
{
if (verbose)
{
if (car(implem) == large_type)
printf("(large type).\n");
else
printf("(mixed type)).\n");
}
fprintf(c_target,"/*********** constructors for type '");
show_type(c_target,type,nil);
fprintf(c_target,"' ************/\n\n");
if (dcti)
{
fprintf(c_target,"/* ");
print_expr(c_target,implem);
fprintf(c_target," */\n\n");
}
while (consp(alts_implems))
{
int k;
int n, d;
Expr aux;
Expr alt_name = car(car(car(alts)));
Expr alt_sort = car(car(alts_implems));
Expr geom = cdr(car(alts_implems));
alts_implems = cdr(alts_implems);
alts = cdr(alts);
/* alt_sort may be small_alt or mixed_alt for mixed
types, and large_alt for large types. */
if (alt_sort == small_alt)
{
int k;
Expr aux2;
/* geom = ((<imp> <offset> . <width>) ...) */
fprintf(h_target,
"\n#define %s%s",
type_name,
regular_string_content(alt_name));
if (consp(geom)) fprintf(h_target,"(");
k = 1;
aux2 = geom;
while (consp(aux2))
{
fprintf(h_target,"_%d",k++);
aux2 = cdr(aux2);
if (consp(aux2)) fprintf(h_target,",");
}
if (k >= 2) fprintf(h_target,")");
fprintf(h_target," (%d",ind);
k = 1;
while(consp(geom))
{
fprintf(h_target,"|((_%d)<<%d)",k++,integer_value(second(car(geom))));
geom = cdr(geom);
}
fprintf(h_target,")\n");
}
else /* large or mixed alt */
{
/* compute the size to allocate */
aux = geom;
n = d = 4;
if (car(implem) == large_type) { n++; d++; }
while (consp(aux))
{
n += integer_value(cdr2(car(aux)));
aux = cdr(aux);
}
/* convert n (bytes) into a number of words (4 bytes) */
while (n&3) n++;
n >>= 2;
fprintf(h_target,
"\n#define %s%s(",
type_name,
regular_string_content(alt_name));
k = 1;
aux = geom;
while (consp(aux))
{
fprintf(h_target,"%s_%d",k==1 ? "":",", k);
k++;
aux = cdr(aux);
}
fprintf(h_target,")\\\n");
fprintf(h_target,
" (_%s%s(allocator",
type_name,
regular_string_content(alt_name));
k = 1;
aux = geom;
while (consp(aux))
{
fprintf(h_target,",_%d", k);
k++;
aux = cdr(aux);
}
fprintf(h_target,"))\n");
fprintf(h_target,
"\nextern U32 _%s%s(AnubisAllocator * dct_allocator",
type_name,
regular_string_content(alt_name));
fprintf(c_target,
"\nU32 _%s%s(AnubisAllocator * dct_allocator",
type_name,
regular_string_content(alt_name));
k = 1;
aux = geom;
while (consp(aux))
{
fprintf(h_target,",U32 _%d",k);
fprintf(c_target,",U32 _%d",k);
k++;
aux = cdr(aux);
}
fprintf(h_target,"); \n");
fprintf(c_target,")\n"
"{\n"
" U32 result;\n"
"\n"
" /* allocate %d words (= %d bytes) */\n"
" if ((result = allocate_data_segment(%d,dct_allocator)) == 0)\n",
n,4*n,n);
fprintf(c_target,
" {\n"
" if (!enlarge_memory(dct_allocator) ||\n"
" (result = allocate_data_segment(%d,dct_allocator)) == 0)\n"
" { dct_error_flag = 1; return 0; }\n"
" }\n",n);
if (car(implem) == large_type)
fprintf(c_target,
" *(((U8 *)result)+4) = %d;\n",
ind);
aux = geom;
k = 1;
while (consp(aux))
{
int w = cdr2(car(aux)) == new_integer(0) ? 0 :
cdr2(car(aux)) == new_integer(1) ? 8 :
cdr2(car(aux)) == new_integer(2) ? 16 : 32;
fprintf(c_target,
" *((U%d *)(((U8 *)result)+%d)) = (U%d)_%d;\n",
w,
d + integer_value(second(car(aux))),
w,
k);
k++;
aux = cdr(aux);
}
if (car(implem) == mixed_type && ind != 0)
fprintf(c_target," result |= %d;\n",ind);
fprintf(c_target," return result;\n}\n\n");
}
ind++;
}
}
break;
default: assert(0);
}
fprintf(h_target,"\n");
}
fprintf(h_target,"\n\n");
fprintf(c_target,"\n\n");
fclose(h_target);
fclose(c_target);
}