/
write_tables.c
1755 lines (1649 loc) · 63.9 KB
/
write_tables.c
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/*
Copyright 2002-2006 John Plevyak, All Rights Reserved
*/
#include "d.h"
#include "dparse_tables.h"
void myfprintf(FILE *f, const char *format, ...) {
va_list ap;
va_start(ap, format);
if (!f)
d_warn("trying to write code to binary file");
else
vfprintf(f, format, ap);
va_end(ap);
}
#define fprintf myfprintf
typedef struct OffsetEntry {
char *name;
int len;
int offset;
} OffsetEntry;
typedef Vec(OffsetEntry *) OffsetEntrySet;
typedef Vec(char *) CharPtrVec;
typedef struct Buf {
char *start;
char *cur;
int len;
} Buf;
typedef struct File {
int binary;
FILE *fp;
uint8 *cur_str;
uint8 **str;
uint *str_len;
Buf tables;
Buf strings;
OffsetEntrySet entries;
CharPtrVec relocations;
CharPtrVec str_relocations;
int first_member;
int array_length;
int n_elems;
int elem_size;
int d_parser_tables_loc;
} File;
OffsetEntry null_entry = {"NULL", sizeof("NULL") - 1, -1};
OffsetEntry spec_code_entry = {"#spec_code", sizeof("#spec_code") - 1, -2};
OffsetEntry final_code_entry = {"#final_code", sizeof("#final_code") - 1, -3};
uint32 offset_hash_fn(OffsetEntry *entry, struct hash_fns_t *fn) {
(void)fn;
return strhashl(entry->name, entry->len);
}
int offset_cmp_fn(OffsetEntry *a, OffsetEntry *b, struct hash_fns_t *fn) {
(void)fn;
return strcmp(a->name, b->name);
}
hash_fns_t offset_fns = {(hash_fn_t)offset_hash_fn, (cmp_fn_t)offset_cmp_fn, {0, 0}};
static void write_chk(const void *ptr, size_t size, size_t nmemb, File *file) {
if (file->fp) {
if (fwrite(ptr, size, nmemb, file->fp) != nmemb) d_fail("error writing binary file\n");
} else {
memcpy(file->cur_str, ptr, size * nmemb);
file->cur_str += size * nmemb;
}
}
static void save_binary_tables(File *file) {
BinaryTablesHead tables;
uint len, i;
tables.n_relocs = file->relocations.n;
tables.n_strings = file->str_relocations.n;
tables.d_parser_tables_loc = file->d_parser_tables_loc;
tables.tables_size = file->tables.cur - file->tables.start;
tables.strings_size = file->strings.cur - file->strings.start;
len = sizeof(BinaryTablesHead) + tables.tables_size + tables.strings_size + (file->relocations.n * sizeof(void *)) +
(file->str_relocations.n * sizeof(void *));
if (file->str) {
file->cur_str = *file->str = (uint8 *)MALLOC(len);
*file->str_len = len;
}
write_chk(&tables, sizeof(BinaryTablesHead), 1, file);
write_chk(file->tables.start, sizeof(char), tables.tables_size, file);
write_chk(file->strings.start, sizeof(char), tables.strings_size, file);
for (i = 0; i < file->relocations.n; i++) write_chk(&file->relocations.v[i], sizeof(void *), 1, file);
for (i = 0; i < file->str_relocations.n; i++) write_chk(&file->str_relocations.v[i], sizeof(void *), 1, file);
}
static void free_tables(File *f) {
uint i;
if (f->tables.start) FREE(f->tables.start);
if (f->strings.start) FREE(f->strings.start);
vec_free(&f->str_relocations);
vec_free(&f->relocations);
for (i = 0; i < f->entries.n; i++) {
if (f->entries.v[i]) {
FREE(f->entries.v[i]->name);
FREE(f->entries.v[i]);
f->entries.v[i] = 0;
}
}
vec_free(&f->entries);
}
static void init_buf(Buf *buf, int initial_size) {
buf->len = initial_size;
buf->start = MALLOC(buf->len);
memset(buf->start, 0, buf->len);
buf->cur = buf->start;
}
static void file_init(File *file, int binary, FILE *fp, uint8 **str, uint *str_len) {
memset(file, 0, sizeof(File));
file->binary = binary;
file->fp = fp;
file->str = str;
file->str_len = str_len;
if (binary) {
init_buf(&file->tables, 1024);
init_buf(&file->strings, 1024);
}
vec_clear(&file->relocations);
vec_clear(&file->entries);
vec_clear(&file->str_relocations);
}
static void make_room_in_buf(Buf *buf, size_t size) {
while (buf->cur + size > buf->start + buf->len) {
int cur = buf->cur - buf->start;
buf->len = buf->len * 2 + 1;
buf->start = REALLOC(buf->start, buf->len);
buf->cur = buf->start + cur;
memset(buf->cur, 0, buf->len - (buf->cur - buf->start));
}
}
static void new_offset(File *fp, char *name) {
OffsetEntry *entry = MALLOC(sizeof(OffsetEntry));
memset(entry, 0, sizeof(OffsetEntry));
entry->name = name;
entry->offset = fp->tables.cur - fp->tables.start;
entry->len = strlen(name);
set_add_fn(&fp->entries, entry, &offset_fns);
}
static uintptr_t make_string(File *fp, const char *name) {
intptr_t size = strlen(name) + 1;
Buf *buf = &fp->strings;
char *dest;
make_room_in_buf(buf, size);
dest = buf->cur;
strcpy(dest, name);
buf->cur += size;
return dest - buf->start;
}
static OffsetEntry *search_for_offset(File *fp, char *name) {
uint32 tt = strhashl(name, strlen(name));
OffsetEntrySet *v = &fp->entries;
int j, n = v->n;
uint i;
if (n) {
uint h = tt % n;
for (i = h, j = 0; i < v->n && j < SET_MAX_SEQUENTIAL; i = ((i + 1) % n), j++) {
if (!v->v[i]) {
assert(0);
return 0;
} else {
if (!strcmp(v->v[i]->name, name)) return v->v[i];
}
}
}
assert(0);
return 0;
}
static OffsetEntry *get_offset(File *fp, char *name, ...) {
int n;
char buf[256];
va_list ap;
va_start(ap, name);
n = vsnprintf(buf, sizeof(buf), name, ap);
(void)n;
va_end(ap);
assert(n < 256 && n >= 0);
return search_for_offset(fp, buf);
}
static char *make_name(char *fmt, ...) {
int n;
char *h_buf, buf[256];
va_list ap;
va_start(ap, fmt);
n = vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
assert(n < 256 && n >= 0);
h_buf = MALLOC(n + 1);
strcpy(h_buf, buf);
return h_buf;
}
static void print_no_comma(File *fp, char *str) {
if (!fp->binary) {
fprintf(fp->fp, "%s", str);
fp->first_member = 1;
}
}
static void print(File *fp, char *str) {
if (!fp->binary) {
fprintf(fp->fp, "%s", str);
}
}
/*
struct:
start_struct
repeat: add_struct_X_member
end_struct
array of primitives:
start_array
repeat: add_array_member or add_array_ptr_member
end_array
array of structs:
start_array
repeat:
start_struct_in_array
repeat: add_struct_X_member
end_struct_in_array
end_array
*/
#define start_struct(file, type, name, whitespace) start_struct_fn(file, sizeof(type), #type, name, whitespace)
#define start_array(file, type, name, length_str, length_data, whitespace) \
start_array_fn(file, sizeof(type), "", #type, name, length_str, length_data, whitespace)
#define add_struct_member(file, struct_type, format, data, member_name) \
do { \
if ((file)->binary) { \
((struct_type *)((file)->tables.cur))->member_name = data; \
} else { \
handle_comma(file); \
fprintf((file)->fp, format, data); \
} \
} while (0)
#define add_struct_const_member(file, struct_type, string, value, member_name) \
do { \
if ((file)->binary) { \
((struct_type *)((file)->tables.cur))->member_name = value; \
} else { \
handle_comma(file); \
fprintf((file)->fp, string); \
} \
} while (0)
#define add_struct_str_member(file, struct_type, string, member_name) \
if (file != NULL) { \
if ((struct_type *)(file)->tables.cur != NULL) { \
add_struct_str_member_fn(file, (char **)&((struct_type *)(file)->tables.cur)->member_name, string); \
} else { \
add_struct_str_member_fn(file, NULL, string); \
} \
}
#define add_struct_ptr_member(file, struct_type, ampersand, entry, member_name) \
if (file != NULL) { \
if ((struct_type *)(file)->tables.cur != NULL) { \
add_struct_ptr_member_fn(file, (void **)&((struct_type *)(file)->tables.cur)->member_name, entry, ampersand "%s"); \
} else { \
add_struct_ptr_member_fn(file, NULL, entry, ampersand "%s"); \
} \
}
#define add_array_member(file, type, format, data, last) \
do { \
if ((file)->binary) { \
add_array_member_internal(file); \
*((type *)((file)->tables.cur)) = data; \
(file)->tables.cur += (file)->elem_size; \
} else { \
fprintf((file)->fp, format "%s", data, last ? "" : ","); \
} \
} while (0)
#define add_array_ptr_member(file, type, ampersand, entry, last) \
add_array_ptr_member_fn(file, entry, ampersand "%s%s", last)
#define end_struct(file, type, whitespace) end_struct_fn(file, sizeof(type), whitespace)
static void add_array_member_internal(File *fp) {
fp->n_elems++;
make_room_in_buf(&fp->tables, fp->elem_size);
}
static void handle_comma(File *file) {
if (!file->first_member) fprintf(file->fp, ", ");
file->first_member = 0;
}
static void start_array_internal(File *fp, int length, int size) {
fp->array_length = length;
fp->n_elems = 0;
fp->elem_size = size;
}
static void start_struct_fn(File *fp, int size, char *type_str, char *name, char *whitespace) {
new_offset(fp, name);
fp->first_member = 1;
if (fp->binary) {
make_room_in_buf(&fp->tables, size);
} else {
fprintf(fp->fp, "%s %s = {%s", type_str, name, whitespace);
}
}
static void start_struct_in_array(File *fp) {
fp->first_member = 1;
if (fp->binary) {
add_array_member_internal(fp);
} else {
fprintf(fp->fp, "{");
}
}
static void start_array_fn(File *fp, int type_size, char *type_prefix, char *type_str, char *name, char *length_str,
int length_data, char *whitespace) {
new_offset(fp, name);
if (fp->binary) {
start_array_internal(fp, length_data, type_size);
} else {
if (length_data == 0)
fprintf(fp->fp, "%s%s %s[] = {%s", type_prefix, type_str, name, whitespace);
else if (strlen(length_str) == 0)
fprintf(fp->fp, "%s%s %s[%d] = {%s", type_prefix, type_str, name, length_data, whitespace);
else
fprintf(fp->fp, "%s%s %s[%s] = {%s", type_prefix, type_str, name, length_str, whitespace);
}
}
static void add_struct_str_member_fn(File *fp, char **dest, const char *str) {
if (fp->binary) {
*dest = (char *)make_string(fp, str);
vec_add(&fp->str_relocations, (void *)((char *)dest - fp->tables.start));
} else {
if (!fp->first_member) fprintf(fp->fp, ", ");
fprintf(fp->fp, "\"%s\"", str);
}
fp->first_member = 0;
}
static void add_struct_ptr_member_fn(File *fp, void **dest, OffsetEntry *oe, char *format) {
if (fp->binary) {
*dest = (void *)(uintptr_t)oe->offset;
vec_add(&fp->relocations, (void *)((char *)dest - fp->tables.start));
} else {
if (*format == '&' && strcmp(oe->name, "NULL") == 0) format++;
if (!fp->first_member) fprintf(fp->fp, ", ");
fprintf(fp->fp, format, oe->name);
}
fp->first_member = 0;
}
static void add_array_ptr_member_fn(File *fp, OffsetEntry *oe, char *format, int last) {
if (fp->binary) {
add_array_member_internal(fp);
*(void **)fp->tables.cur = (void *)(intptr_t)oe->offset;
vec_add(&fp->relocations, (void *)(fp->tables.cur - fp->tables.start));
fp->tables.cur += fp->elem_size;
} else {
if (*format == '&' && strcmp(oe->name, "NULL") == 0) format++;
fprintf(fp->fp, format, oe->name, last ? "" : ",");
}
}
typedef void (*CopyFuncType)(void *, int);
static void add_array_member_fn(File *file, CopyFuncType copy, char *format, uint data, int last) {
if (file->binary) {
add_array_member_internal(file);
copy((void *)(file->tables.cur), data);
file->tables.cur += file->elem_size;
} else {
fprintf((file)->fp, format, data);
if (!last) fprintf(file->fp, ", ");
}
}
static void end_struct_fn(File *fp, int size, char *whitespace) {
if (fp->binary) {
fp->tables.cur += size;
} else {
fprintf(fp->fp, "};%s", whitespace);
}
}
static void end_struct_in_array(File *fp, char *last) {
if (fp->binary) {
fp->tables.cur += fp->elem_size;
} else {
fprintf(fp->fp, "}%s", last);
}
}
static void end_array(File *fp, char *whitespace) {
if (fp->binary) {
if (fp->array_length != 0) {
int remaining = (fp->array_length - fp->n_elems) * fp->elem_size;
if (remaining) {
make_room_in_buf(&fp->tables, remaining);
memset(fp->tables.cur, 0, remaining);
fp->tables.cur += remaining;
}
}
} else {
fprintf(fp->fp, "};%s", whitespace);
}
}
typedef struct ScannerBlock {
int state_index;
int scanner_index;
int block_index;
ScanState **chars;
ScanStateTransition **transitions;
} ScannerBlock;
typedef Vec(ScannerBlock *) VecScannerBlock;
typedef Vec(State *) VecState;
static int scanner_size(State *s) {
if (s->scanner.states.n < 255 && s->scanner.transitions.n < 255) return 1;
if (s->scanner.states.n < 32384 && s->scanner.transitions.n < 32384) return 2;
return 4;
}
#define copy_func(name, type) \
static void name(void *dest, int data) { (*(type *)(dest)) = (data); }
copy_func(unsigned_char_copy, uint8) copy_func(unsigned_short_copy, unsigned short) copy_func(unsigned_int_copy, uint)
static CopyFuncType get_copy_func(int i) {
switch (i) {
case 1:
return unsigned_char_copy;
case 2:
return unsigned_short_copy;
case 4:
return unsigned_int_copy;
default:
d_fail("bad case");
return 0;
}
}
static char *make_type(int i) {
switch (i) {
case 1:
return "unsigned char";
case 2:
return "unsigned short";
case 4:
return "unsigned int";
default:
d_fail("bad case");
return "";
}
}
static char *scanner_type(State *s) { return make_type(scanner_size(s)); }
static char *make_u_type(int i) {
switch (i) {
case 1:
return "uint8";
case 2:
return "uint16";
case 4:
return "uint32";
default:
d_fail("bad case");
return "";
}
}
static char *scanner_u_type(State *s) { return make_u_type(scanner_size(s)); }
static uint32 scanner_block_hash_fn(ScannerBlock *b, hash_fns_t *fns) {
uint32 hash = 0;
intptr_t i, block_size = (intptr_t)fns->data[0];
ScanState **sb = b->chars;
for (i = 0; i < block_size; i++) {
hash *= 17;
hash += sb[i] ? sb[i]->index + 2 : 1;
}
return hash;
}
static int scanner_block_cmp_fn(ScannerBlock *a, ScannerBlock *b, hash_fns_t *fns) {
intptr_t i, block_size = (intptr_t)fns->data[0];
ScanState **sa = a->chars;
ScanState **sb = b->chars;
for (i = 0; i < block_size; i++) {
if (sa[i] == sb[i]) continue;
if (!sa[i] || !sb[i]) return 1;
if (sa[i]->index != sb[i]->index) return 1;
}
return 0;
}
hash_fns_t scanner_block_fns = {(hash_fn_t)scanner_block_hash_fn, (cmp_fn_t)scanner_block_cmp_fn, {0, 0}};
static uint32 trans_scanner_block_hash_fn(ScannerBlock *b, hash_fns_t *fns) {
uint32 hash = 0;
intptr_t i, block_size = (intptr_t)fns->data[0];
ScanStateTransition **sb = b->transitions;
for (i = 0; i < block_size; i++) {
hash *= 3;
hash += sb[i] ? sb[i]->index + 1 : 0;
}
return hash;
}
static int trans_scanner_block_cmp_fn(ScannerBlock *a, ScannerBlock *b, hash_fns_t *fns) {
intptr_t i, block_size = (intptr_t)fns->data[0];
ScanStateTransition **sa = a->transitions;
ScanStateTransition **sb = b->transitions;
for (i = 0; i < block_size; i++) {
if (sa[i] == sb[i]) continue;
if (!sa[i] || !sb[i]) return 1;
if (sa[i]->index != sb[i]->index) return 1;
}
return 0;
}
hash_fns_t trans_scanner_block_fns = {
(hash_fn_t)trans_scanner_block_hash_fn, (cmp_fn_t)trans_scanner_block_cmp_fn, {0, 0}};
static uint32 shift_hash_fn(Action *sa, hash_fns_t *fns) {
(void)fns;
return sa->term->index + (sa->kind == ACTION_SHIFT_TRAILING ? 1000000 : 0);
}
static int shift_cmp_fn(Action *sa, Action *sb, hash_fns_t *fns) {
(void)fns;
return (sa->term->index != sb->term->index) || (sa->kind != sb->kind);
}
hash_fns_t shift_fns = {(hash_fn_t)shift_hash_fn, (cmp_fn_t)shift_cmp_fn, {0, 0}};
static void write_scanner_data(File *fp, Grammar *g, char *tag) {
State *s;
ScannerBlock *vsblock, *xv, *yv;
VecScannerBlock scanner_block_hash[4], *pscanner_block_hash;
VecScannerBlock trans_scanner_block_hash[4], *ptrans_scanner_block_hash;
VecAction shift_hash;
uint nvsblocks, ivsblock, i, j, xx;
VecScanState *ss;
char speculative_code[256];
Term *t;
/* shift_actions */
for (i = 0; i < g->terminals.n; i++) {
int action_index = -1;
t = g->terminals.v[i];
if (t->regex_production && t->regex_production->rules.v[0]->speculative_code.code) {
assert(!fp->binary);
snprintf(speculative_code, 255, "d_speculative_reduction_code_%d_%d_%s", t->regex_production->index,
t->regex_production->rules.v[0]->index, tag);
} else {
strcpy(speculative_code, "NULL");
}
if (t->regex_production) {
action_index = t->regex_production->rules.v[0]->action_index;
}
start_struct(fp, D_Shift, make_name("d_shift_%d_%s", i, tag), "");
add_struct_member(fp, D_Shift, "%d", g->terminals.v[i]->index + g->productions.n, symbol);
add_struct_member(fp, D_Shift, "%d", g->terminals.v[i]->scan_kind, shift_kind);
add_struct_member(fp, D_Shift, "%d", g->terminals.v[i]->op_assoc, op_assoc);
add_struct_member(fp, D_Shift, "%d", g->terminals.v[i]->op_priority, op_priority);
add_struct_member(fp, D_Shift, "%d", g->terminals.v[i]->term_priority, term_priority);
if (fp->binary) {
add_struct_member(fp, D_Shift, "%d", action_index, action_index);
add_struct_ptr_member(fp, D_Shift, "", &spec_code_entry, speculative_code);
} else {
add_struct_member(fp, D_Shift, "%d", 0, action_index);
fprintf(fp->fp, ", %s", speculative_code);
}
end_struct(fp, D_Shift, "\n");
g->write_line++;
if (g->terminals.v[i]->trailing_context) {
start_struct(fp, D_Shift, make_name("d_tshift_%d_%s", i, tag), "");
add_struct_member(fp, D_Shift, "%d", g->terminals.v[i]->index + g->productions.n, symbol);
add_struct_member(fp, D_Shift, "%d", D_SCAN_TRAILING, shift_kind);
add_struct_member(fp, D_Shift, "%d", g->terminals.v[i]->op_assoc, op_assoc);
add_struct_member(fp, D_Shift, "%d", g->terminals.v[i]->op_priority, op_priority);
add_struct_member(fp, D_Shift, "%d", g->terminals.v[i]->term_priority, term_priority);
if (fp->binary) {
add_struct_member(fp, D_Shift, "%d", action_index, action_index);
add_struct_ptr_member(fp, D_Shift, "", &spec_code_entry, speculative_code);
} else {
add_struct_member(fp, D_Shift, "%d", 0, action_index);
fprintf(fp->fp, ", %s", speculative_code);
}
end_struct(fp, D_Shift, "\n");
g->write_line++;
}
}
print(fp, "\n");
g->write_line++;
/* scanners */
nvsblocks = 0;
for (i = 0; i < g->states.n; i++) nvsblocks += g->states.v[i]->scanner.states.n * g->scanner_blocks;
vsblock = MALLOC((nvsblocks ? nvsblocks : 1) * sizeof(ScannerBlock));
for (i = 0; i < 4; i++) {
vec_clear(&scanner_block_hash[i]);
vec_clear(&trans_scanner_block_hash[i]);
}
scanner_block_fns.data[0] = (void *)(uintptr_t)g->scanner_block_size;
scanner_block_fns.data[1] = (void *)g;
trans_scanner_block_fns.data[0] = (void *)(uintptr_t)g->scanner_block_size;
trans_scanner_block_fns.data[1] = (void *)g;
/* shift */
vec_clear(&shift_hash);
ivsblock = 0;
for (i = 0; i < g->states.n; i++) {
s = g->states.v[i];
if (s->same_shifts) continue;
ss = &s->scanner.states;
/* build accepts differences */
for (j = 0; j < s->scanner.transitions.n; j++) {
uint k;
VecAction *va = &s->scanner.transitions.v[j]->accepts_diff;
start_array(fp, D_Shift *, make_name("d_accepts_diff_%d_%d_%s", i, j, tag), "", 0, "");
for (k = 0; k < va->n; k++) {
if (va->v[k]->kind != ACTION_SHIFT_TRAILING)
add_array_ptr_member(fp, D_Shift *, "&", get_offset(fp, "d_shift_%d_%s", va->v[k]->term->index, tag), 0);
else
add_array_ptr_member(fp, D_Shift *, "&", get_offset(fp, "d_tshift_%d_%s", va->v[k]->term->index, tag), 0);
}
add_array_member(fp, D_Shift *, "%d", 0, 1);
end_array(fp, "\n");
g->write_line += 2;
}
if (s->scanner.transitions.n) {
start_array(fp, D_Shift **, make_name("d_accepts_diff_%d_%s", i, tag), "", 0, "\n");
for (j = 0; j < s->scanner.transitions.n; j++) {
add_array_ptr_member(fp, D_Shift **, "", get_offset(fp, "d_accepts_diff_%d_%d_%s", i, j, tag),
j == s->scanner.transitions.n - 1);
print(fp, "\n");
if (j != s->scanner.transitions.n - 1) g->write_line++;
}
end_array(fp, "\n\n");
g->write_line += 3;
}
/* build scanner_block_hash */
pscanner_block_hash = &scanner_block_hash[scanner_size(s) - 1];
ptrans_scanner_block_hash = &trans_scanner_block_hash[scanner_size(s) - 1];
for (j = 0; j < ss->n; j++) {
if (!s->same_shifts) {
int k, x;
for (k = 0; k < g->scanner_blocks; k++) {
vsblock[ivsblock].state_index = s->index;
vsblock[ivsblock].scanner_index = j;
vsblock[ivsblock].block_index = k;
vsblock[ivsblock].chars = (void *)&ss->v[j]->chars[k * g->scanner_block_size];
vsblock[ivsblock].transitions = (void *)&ss->v[j]->transition[k * g->scanner_block_size];
xv = &vsblock[ivsblock];
ivsblock++;
assert(ivsblock <= nvsblocks);
/* output state scanner blocks */
yv = set_add_fn(pscanner_block_hash, xv, &scanner_block_fns);
if (xv == yv) {
int size = scanner_size(s);
start_array_fn(fp, size, "", make_type(size), make_name("d_scanner_%d_%d_%d_%s", i, j, k, tag),
"SCANNER_BLOCK_SIZE", SCANNER_BLOCK_SIZE, "\n");
for (x = 0; x < g->scanner_block_size; x++) {
xx = x + k * g->scanner_block_size;
add_array_member_fn(fp, get_copy_func(size), "%d",
ss->v[j]->chars[xx] ? ss->v[j]->chars[xx]->index + 1 : 0, x == g->scanner_block_size);
if (x % 16 == 15) {
print(fp, "\n"); /*fprintf(fp, "\n");*/
g->write_line++;
}
}
end_array(fp, "\n\n");
g->write_line += 3;
}
if (s->scan_kind != D_SCAN_LONGEST || s->trailing_context) {
/* output accept_diff scanner blocks */
yv = set_add_fn(ptrans_scanner_block_hash, xv, &trans_scanner_block_fns);
if (xv == yv) {
int size = scanner_size(s);
start_array_fn(fp, size, "", make_type(size), make_name("d_accepts_diff_%d_%d_%d_%s", i, j, k, tag),
"SCANNER_BLOCK_SIZE", SCANNER_BLOCK_SIZE, "\n");
for (x = 0; x < g->scanner_block_size; x++) {
xx = x + k * g->scanner_block_size;
add_array_member_fn(fp, get_copy_func(size), "%d", ss->v[j]->transition[xx]->index,
x == g->scanner_block_size);
if (x % 16 == 15) {
print(fp, "\n");
g->write_line++;
}
}
end_array(fp, "\n\n");
g->write_line += 3;
}
}
}
/* output shifts */
if (ss->v[j]->accepts.n) {
uint k;
char tmp[256];
snprintf(tmp, 255, "d_shift_%d_%d_%s", i, j, tag);
for (k = 0; k < ss->v[j]->accepts.n; k++) {
Action *a = ss->v[j]->accepts.v[k], *aa;
if (ss->v[j]->accepts.n == 1) {
if (a->temp_string) continue;
a->temp_string = dup_str(tmp, 0);
aa = set_add_fn(&shift_hash, a, &shift_fns);
if (aa != a) continue;
}
/* output shifts */
if (!k) start_array(fp, D_Shift *, make_name(tmp), "", 0, "");
if (a->kind != ACTION_SHIFT_TRAILING) {
add_array_ptr_member(fp, D_Shift *, "&", get_offset(fp, "d_shift_%d_%s", a->term->index, tag), 0);
if (k == ss->v[j]->accepts.n - 1) {
add_array_ptr_member(fp, D_Shift *, "&", &null_entry, 1);
end_array(fp, "\n\n");
}
} else {
add_array_ptr_member(fp, D_Shift *, "&", get_offset(fp, "d_tshift_%d_%s", a->term->index, tag), 0);
if (k == ss->v[j]->accepts.n - 1) {
add_array_ptr_member(fp, D_Shift *, "&", &null_entry, 1);
end_array(fp, "\n\n");
}
}
if (k == ss->v[j]->accepts.n - 1) g->write_line += 2;
}
}
}
}
}
for (i = 0; i < g->states.n; i++) {
int k;
s = g->states.v[i];
ss = &s->scanner.states;
ivsblock = 0;
if (ss->n && !s->same_shifts) {
/* output scanner state transition tables */
/* assume SB_uint8, 16, and 32 have same member offsets */
assert(sizeof(SB_uint8) == sizeof(SB_uint16) && sizeof(SB_uint16) == sizeof(SB_uint32));
start_array_fn(fp, sizeof(SB_uint8), "SB_", scanner_u_type(s), make_name("d_scanner_%d_%s", i, tag), "", ss->n,
"\n");
g->write_line += 1;
pscanner_block_hash = &scanner_block_hash[scanner_size(s) - 1];
for (j = 0; j < ss->n; j++) {
Action *a;
start_struct_in_array(fp);
if (ss->v[j]->accepts.n) {
a = ss->v[j]->accepts.v[0];
if (ss->v[j]->accepts.n == 1) {
a = set_add_fn(&shift_hash, a, &shift_fns);
add_struct_ptr_member(fp, SB_uint8, "", get_offset(fp, "%s", a->temp_string), shift);
} else
add_struct_ptr_member(fp, SB_uint8, "", get_offset(fp, "d_shift_%d_%d_%s", i, j, tag), shift);
} else
add_struct_ptr_member(fp, SB_uint8, "", &null_entry, shift);
print_no_comma(fp, ", {");
for (k = 0; k < g->scanner_blocks; k++) {
ScannerBlock vs;
vs.state_index = s->index;
vs.scanner_index = j;
vs.block_index = k;
vs.chars = (void *)&ss->v[j]->chars[k * g->scanner_block_size];
vs.transitions = (void *)&ss->v[j]->transition[k * g->scanner_block_size];
xv = &vs;
yv = set_add_fn(pscanner_block_hash, xv, &scanner_block_fns);
assert(yv != xv);
add_struct_ptr_member(
fp, SB_uint8, "",
get_offset(fp, "d_scanner_%d_%d_%d_%s", yv->state_index, yv->scanner_index, yv->block_index, tag),
scanner_block[k]);
if (k != g->scanner_blocks - 1) {
if ((k % 2) == 1) {
print(fp, "\n ");
g->write_line += 1;
}
}
}
print(fp, "}");
end_struct_in_array(fp, j != ss->n - 1 ? ",\n" : "\n");
g->write_line += 1;
}
end_array(fp, "\n\n");
g->write_line += 2;
if (s->scan_kind != D_SCAN_LONGEST || s->trailing_context) {
/* output scanner accepts diffs tables */
start_array_fn(fp, sizeof(SB_trans_uint8), "SB_trans_", scanner_u_type(s),
make_name("d_transition_%d_%s", i, tag), "", ss->n, "\n");
g->write_line += 1;
ptrans_scanner_block_hash = &trans_scanner_block_hash[scanner_size(s) - 1];
for (j = 0; j < ss->n; j++) {
start_struct_in_array(fp);
print(fp, "{");
for (k = 0; k < g->scanner_blocks; k++) {
ScannerBlock vs;
vs.state_index = s->index;
vs.scanner_index = j;
vs.block_index = k;
vs.chars = (void *)&ss->v[j]->chars[k * g->scanner_block_size];
vs.transitions = (void *)&ss->v[j]->transition[k * g->scanner_block_size];
xv = &vs;
yv = set_add_fn(ptrans_scanner_block_hash, xv, &trans_scanner_block_fns);
assert(yv != xv);
add_struct_ptr_member(
fp, SB_trans_uint8, "",
get_offset(fp, "d_accepts_diff_%d_%d_%d_%s", yv->state_index, yv->scanner_index, yv->block_index, tag),
scanner_block[k]);
if (k != g->scanner_blocks - 1) {
if ((k % 2) == 1) {
print(fp, "\n ");
g->write_line += 1;
}
}
}
print(fp, "}");
end_struct_in_array(fp, j != ss->n - 1 ? ",\n" : "\n");
g->write_line += 1;
}
end_array(fp, "\n\n");
g->write_line += 2;
}
}
}
for (i = 0; i < 4; i++) {
vec_free(&scanner_block_hash[i]);
vec_free(&trans_scanner_block_hash[i]);
}
vec_free(&shift_hash);
FREE(vsblock);
}
#define reduction_index(_r) ((_r)->same_reduction ? (_r)->same_reduction->index : (_r)->index)
static void write_goto_data(File *fp, Grammar *g, char *tag) {
Vec(intptr_t) vgoto;
State *s;
uint8 *goto_valid = NULL;
uint i, j, x, again, nvalid_bytes, sym, lowest_sym;
nvalid_bytes = ((g->productions.n + g->terminals.n) + 7) / 8;
goto_valid = MALLOC(nvalid_bytes);
vec_clear(&vgoto);
for (i = 0; i < g->states.n; i++) {
s = g->states.v[i];
if (s->gotos.n) {
/* check for goto on token */
for (j = 0; j < s->gotos.n; j++)
if (s->gotos.v[j]->elem->kind == ELEM_TERM && s->gotos.v[j]->elem->e.term->kind == TERM_TOKEN)
s->goto_on_token = 1;
/* find lowest goto, set valid bits */
memset(goto_valid, 0, nvalid_bytes);
lowest_sym = elem_symbol(g, s->gotos.v[0]->elem);
SET_BIT(goto_valid, lowest_sym);
for (j = 1; j < s->gotos.n; j++) {
sym = elem_symbol(g, s->gotos.v[j]->elem);
SET_BIT(goto_valid, sym);
if (sym < lowest_sym) lowest_sym = sym;
}
/* insert into vgoto */
again = 1;
while (again) {
int k = 0;
again = 0;
for (k = 0; k < (int)s->gotos.n; k++) {
x = elem_symbol(g, s->gotos.v[k]->elem);
x -= lowest_sym;
while (vgoto.n <= x) {
vec_add(&vgoto, 0);
}
if (vgoto.v[x]) {
again = 1;
/* undo the damage */
for (--k; k >= 0; k--) {
x = elem_symbol(g, s->gotos.v[k]->elem);
x -= lowest_sym;
vgoto.v[x] = 0;
}
lowest_sym--;
break;
} else
vgoto.v[x] = s->gotos.v[k]->state->index + 1;
}
}
s->goto_table_offset = lowest_sym;
/* valid bits */
start_array(fp, unsigned char, make_name("d_goto_valid_%d_%s", i, tag), "", 0, "");
print(fp, "\n");
g->write_line += 1;
for (j = 0; j < nvalid_bytes; j++)
add_array_member(fp, unsigned char, "0x%x", goto_valid[j], j == nvalid_bytes - 1);
end_array(fp, "\n");
g->write_line += 1;
} else
s->goto_table_offset = -INT_MAX;
/* reduce_actions */
if (s->reduce_actions.n) {
start_array(fp, D_Reduction *, make_name("d_reductions_%d_%s", i, tag), "", 0, "");
for (j = 0; j < s->reduce_actions.n; j++)
add_array_ptr_member(fp, D_Reduction *, "&",
get_offset(fp, "d_reduction_%d_%s", reduction_index(s->reduce_actions.v[j]->rule), tag),
j == s->reduce_actions.n - 1);
end_array(fp, "\n");
g->write_line += 1;
}
/* modified_reduce_actions */
if (s->right_epsilon_hints.n) {
start_array(fp, D_RightEpsilonHint, make_name("d_right_epsilon_hints_%d_%s", i, tag), "", 0, "");
for (j = 0; j < s->right_epsilon_hints.n; j++) {
start_struct_in_array(fp);
add_struct_member(fp, D_RightEpsilonHint, "%d", s->right_epsilon_hints.v[j]->depth, depth);
add_struct_member(fp, D_RightEpsilonHint, "%d", s->right_epsilon_hints.v[j]->state->index, preceeding_state);
add_struct_ptr_member(
fp, D_RightEpsilonHint, "&",
get_offset(fp, "d_reduction_%d_%s", reduction_index(s->right_epsilon_hints.v[j]->rule), tag), reduction);
end_struct_in_array(fp, ((j == s->right_epsilon_hints.n - 1) ? "" : ","));
}
end_array(fp, "\n");
g->write_line += 1;
}
}
/* gotos */
if (vgoto.n) {
start_array(fp, unsigned short, make_name("d_gotos_%s", tag), "", vgoto.n, "\n");
g->write_line += 1;
for (j = 0; j < vgoto.n; j++) {
if (vgoto.v[j] < 0 || vgoto.v[j] > 65535) d_fail("goto table overflow");
add_array_member(fp, unsigned short, "%d", vgoto.v[j], j == vgoto.n - 1);
if (j % 16 == 15) {
print(fp, "\n");
g->write_line += 1;
}
}
end_array(fp, "\n\n");
g->write_line += 2;
} else {
start_array(fp, unsigned short, make_name("d_gotos_%s", tag), "", 1, "");
add_array_member(fp, unsigned short, "%d", 0, 1);
end_array(fp, "\n");
g->write_line += 1;
}
vec_free(&vgoto);
FREE(goto_valid);
}
static void write_scanner_code(File *file, Grammar *g, char *tag) {
uint i, j, l;
Action *a;
State *s;
FILE *fp = file->fp;
for (i = 0; i < g->states.n; i++) {
s = g->states.v[i];
for (j = 0; j < s->shift_actions.n; j++) {
a = s->shift_actions.v[j];
if (a->kind == ACTION_SHIFT && a->term->kind == TERM_CODE) {
if (!s->scanner_code) {
s->scanner_code = 1;
new_offset(file, make_name("d_scan_code_%d_%s", i, tag));
fprintf(fp,
"int d_scan_code_%d_%s(d_loc_t *loc,"
"unsigned short *symbol, int *term_priority,"
"unsigned char *op_assoc, int *op_priority) {\n"
" int res;\n",
i, tag);
g->write_line += 1;
}
fprintf(fp, " if ((res = ");
l = strlen(a->term->string);
if (a->term->string[l - 1] == ')') {
fwrite(a->term->string, l - 1, 1, fp);
fprintf(fp, ", ");
} else
fprintf(fp, "%s(", a->term->string);
fprintf(fp,
"loc, op_assoc, op_priority))) {\n"
" *symbol = %d;\n"
" *term_priority = %d;\n"
" return res;\n"