зеркало из https://github.com/mozilla/gecko-dev.git
940 строки
23 KiB
C
940 строки
23 KiB
C
char rcsid_plank[] = "$Id: plank.c,v 1.1 1998/12/17 06:36:48 fur%netscape.com Exp $";
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include "b.h"
|
|
#include "fe.h"
|
|
|
|
#define ERROR_VAL 0
|
|
|
|
int safely = 1;
|
|
|
|
static struct stateMapTable smt;
|
|
int exceptionTolerance = 0;
|
|
static int plankSize = 32;
|
|
|
|
static Plank newPlank ARGS((void));
|
|
static PlankMap newPlankMap ARGS((int));
|
|
static StateMap newStateMap ARGS((void));
|
|
static Exception newException ARGS((int, int));
|
|
static void enterStateMap ARGS((PlankMap, DeltaPtr, int, int *));
|
|
static List assemblePlanks ARGS((void));
|
|
static void assignRules ARGS((RuleAST));
|
|
static int stateCompare ARGS((Item_Set *, Item_Set *));
|
|
static int ruleCompare ARGS((RuleAST *, RuleAST *));
|
|
static void renumber ARGS((void));
|
|
static short * newVector ARGS((void));
|
|
static int width ARGS((int));
|
|
static PlankMap mapToPmap ARGS((Dimension));
|
|
static void doDimPmaps ARGS((Operator));
|
|
static void doNonTermPmaps ARGS((NonTerminal));
|
|
static void makePmaps ARGS((void));
|
|
static void outPlank ARGS((Plank));
|
|
static void purgePlanks ARGS((List));
|
|
static void inToEx ARGS((void));
|
|
static void makePlankRuleMacros ARGS((void));
|
|
static void makePlankRule ARGS((void));
|
|
static void exceptionSwitch ARGS((List, char *, char *, char *, int, char *));
|
|
static void doPlankLabel ARGS((Operator));
|
|
static void doPlankLabelSafely ARGS((Operator));
|
|
static void doPlankLabelMacrosSafely ARGS((Operator));
|
|
static void makePlankState ARGS((void));
|
|
|
|
static Plank
|
|
newPlank()
|
|
{
|
|
Plank p;
|
|
char buf[50];
|
|
static int num = 0;
|
|
|
|
p = (Plank) zalloc(sizeof(struct plank));
|
|
sprintf(buf, "%s_plank_%d", prefix, num++);
|
|
p->name = (char *) zalloc(strlen(buf)+1);
|
|
strcpy(p->name, buf);
|
|
return p;
|
|
}
|
|
|
|
static PlankMap
|
|
newPlankMap(offset) int offset;
|
|
{
|
|
PlankMap im;
|
|
|
|
im = (PlankMap) zalloc(sizeof(struct plankMap));
|
|
im->offset = offset;
|
|
return im;
|
|
}
|
|
|
|
static StateMap
|
|
newStateMap()
|
|
{
|
|
char buf[50];
|
|
static int num = 0;
|
|
|
|
StateMap sm;
|
|
|
|
sm = (StateMap) zalloc(sizeof(struct stateMap));
|
|
sprintf(buf, "f%d", num++);
|
|
sm->fieldname = (char *) zalloc(strlen(buf)+1);
|
|
strcpy(sm->fieldname, buf);
|
|
return sm;
|
|
}
|
|
|
|
static Exception
|
|
newException(index, value) int index; int value;
|
|
{
|
|
Exception e;
|
|
|
|
e = (Exception) zalloc(sizeof(struct except));
|
|
e->index = index;
|
|
e->value = value;
|
|
return e;
|
|
}
|
|
|
|
static void
|
|
enterStateMap(im, v, width, new) PlankMap im; short *v; int width; int *new;
|
|
{
|
|
int i;
|
|
StateMap sm;
|
|
List l;
|
|
int size;
|
|
|
|
assert(im);
|
|
assert(v);
|
|
assert(width > 0);
|
|
size = globalMap->count - (safely ? 0 : 1);
|
|
|
|
for (l = smt.maps; l; l = l->next) {
|
|
int ecount;
|
|
|
|
sm = (StateMap) l->x;
|
|
ecount = 0;
|
|
for (i = 0; i < size; i++) {
|
|
if (v[i] != -1 && sm->value[i] != -1 && v[i] != sm->value[i]) {
|
|
if (++ecount > exceptionTolerance) {
|
|
goto again;
|
|
}
|
|
}
|
|
}
|
|
for (i = 0; i < size; i++) {
|
|
assert(v[i] >= 0);
|
|
assert(sm->value[i] >= 0);
|
|
if (v[i] == -1) {
|
|
continue;
|
|
}
|
|
if (sm->value[i] == -1) {
|
|
sm->value[i] = v[i];
|
|
} else if (v[i] != sm->value[i]) {
|
|
im->exceptions = newList(newException(i,v[i]), im->exceptions);
|
|
}
|
|
}
|
|
im->values = sm;
|
|
if (width > sm->width) {
|
|
sm->width = width;
|
|
}
|
|
*new = 0;
|
|
return;
|
|
again: ;
|
|
}
|
|
sm = newStateMap();
|
|
im->values = sm;
|
|
sm->value = v;
|
|
sm->width = width;
|
|
*new = 1;
|
|
smt.maps = newList(sm, smt.maps);
|
|
}
|
|
|
|
static List
|
|
assemblePlanks()
|
|
{
|
|
List planks = 0;
|
|
Plank pl;
|
|
List p;
|
|
List s;
|
|
|
|
for (s = smt.maps; s; s = s->next) {
|
|
StateMap sm = (StateMap) s->x;
|
|
for (p = planks; p; p = p->next) {
|
|
pl = (Plank) p->x;
|
|
if (sm->width <= plankSize - pl->width) {
|
|
pl->width += sm->width;
|
|
pl->fields = newList(sm, pl->fields);
|
|
sm->plank = pl;
|
|
goto next;
|
|
}
|
|
}
|
|
pl = newPlank();
|
|
pl->width = sm->width;
|
|
pl->fields = newList(sm, 0);
|
|
sm->plank = pl;
|
|
planks = appendList(pl, planks);
|
|
next: ;
|
|
}
|
|
return planks;
|
|
}
|
|
|
|
static Item_Set *sortedStates;
|
|
static RuleAST *sortedRules;
|
|
|
|
static int count;
|
|
|
|
static void
|
|
assignRules(ast) RuleAST ast;
|
|
{
|
|
sortedRules[count++] = ast;
|
|
}
|
|
|
|
static int
|
|
stateCompare(s, t) Item_Set *s; Item_Set *t;
|
|
{
|
|
return strcmp((*s)->op->name, (*t)->op->name);
|
|
}
|
|
|
|
static int
|
|
ruleCompare(s, t) RuleAST *s; RuleAST *t;
|
|
{
|
|
return strcmp((*s)->lhs, (*t)->lhs);
|
|
}
|
|
|
|
void
|
|
dumpSortedStates()
|
|
{
|
|
int i;
|
|
|
|
printf("dump Sorted States: ");
|
|
for (i = 0; i < globalMap->count-(safely?0:1); i++) {
|
|
printf("%d ", sortedStates[i]->num);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
void
|
|
dumpSortedRules()
|
|
{
|
|
int i;
|
|
|
|
printf("dump Sorted Rules: ");
|
|
for (i = 0; i < max_ruleAST; i++) {
|
|
printf("%d ", sortedRules[i]->rule->erulenum);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
static void
|
|
renumber()
|
|
{
|
|
int i;
|
|
Operator previousOp;
|
|
NonTerminal previousLHS;
|
|
int base_counter;
|
|
|
|
sortedStates = (Item_Set*) zalloc(globalMap->count * sizeof(Item_Set));
|
|
for (i = 1; i < globalMap->count; i++) {
|
|
sortedStates[i-1] = globalMap->set[i];
|
|
}
|
|
qsort(sortedStates, globalMap->count-1, sizeof(Item_Set), (int (*)(const void *, const void *))stateCompare);
|
|
previousOp = 0;
|
|
for (i = 0; i < globalMap->count-1; i++) {
|
|
sortedStates[i]->newNum = i;
|
|
sortedStates[i]->op->stateCount++;
|
|
if (previousOp != sortedStates[i]->op) {
|
|
sortedStates[i]->op->baseNum = i;
|
|
previousOp = sortedStates[i]->op;
|
|
}
|
|
}
|
|
|
|
sortedRules = (RuleAST*) zalloc(max_ruleAST * sizeof(RuleAST));
|
|
count = 0;
|
|
foreachList((ListFn) assignRules, ruleASTs);
|
|
qsort(sortedRules, max_ruleAST, sizeof(RuleAST), (int (*)(const void *, const void *))ruleCompare);
|
|
previousLHS = 0;
|
|
base_counter = 0;
|
|
for (i = 0; i < max_ruleAST; i++) {
|
|
if (previousLHS != sortedRules[i]->rule->lhs) {
|
|
sortedRules[i]->rule->lhs->baseNum = base_counter;
|
|
previousLHS = sortedRules[i]->rule->lhs;
|
|
if (safely) {
|
|
base_counter++; /* make space for 0 */
|
|
}
|
|
}
|
|
sortedRules[i]->rule->newNum = base_counter;
|
|
sortedRules[i]->rule->lhs->ruleCount++;
|
|
sortedRules[i]->rule->lhs->sampleRule = sortedRules[i]->rule; /* kludge for diagnostics */
|
|
base_counter++;
|
|
}
|
|
}
|
|
|
|
static short *
|
|
newVector()
|
|
{
|
|
short *p;
|
|
p = (short *) zalloc(globalMap->count* sizeof(short));
|
|
return p;
|
|
}
|
|
|
|
static int
|
|
width(v) int v;
|
|
{
|
|
int c;
|
|
|
|
for (c = 0; v; v >>= 1) {
|
|
c++;
|
|
}
|
|
return c;
|
|
|
|
}
|
|
|
|
static PlankMap
|
|
mapToPmap(d) Dimension d;
|
|
{
|
|
PlankMap im;
|
|
short *v;
|
|
int i;
|
|
int new;
|
|
|
|
if (d->map->count == (2-safely)) {
|
|
return 0;
|
|
}
|
|
assert(d->map->count > (2-safely));
|
|
im = newPlankMap(0);
|
|
v = newVector();
|
|
if (safely) {
|
|
for (i = 0; i < globalMap->count-1; i++) {
|
|
int index = d->map->set[d->index_map.class[sortedStates[i]->num]->num]->num;
|
|
assert(index >= 0);
|
|
v[i+1] = index;
|
|
}
|
|
v[0] = 0;
|
|
enterStateMap(im, v, width(d->map->count-(safely?0:1)), &new);
|
|
} else {
|
|
for (i = 0; i < globalMap->count-1; i++) {
|
|
int index = d->map->set[d->index_map.class[sortedStates[i]->num]->num]->num;
|
|
v[i] = index-1;
|
|
}
|
|
enterStateMap(im, v, width(d->map->count-(2-safely)), &new);
|
|
}
|
|
if (!new) {
|
|
zfree(v);
|
|
}
|
|
return im;
|
|
}
|
|
|
|
static void
|
|
doDimPmaps(op) Operator op;
|
|
{
|
|
int i, j;
|
|
Dimension d;
|
|
short *v;
|
|
PlankMap im;
|
|
int new;
|
|
|
|
if (!op->table->rules) {
|
|
return;
|
|
}
|
|
switch (op->arity) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
d = op->table->dimen[0];
|
|
if (d->map->count > 2-safely) {
|
|
v = newVector();
|
|
im = newPlankMap(op->baseNum);
|
|
for (i = 0; i < globalMap->count-1; i++) {
|
|
int index = d->map->set[d->index_map.class[sortedStates[i]->num]->num]->num;
|
|
if (index) {
|
|
Item_Set *ts = transLval(op->table, index, 0);
|
|
v[i+safely] = (*ts)->newNum - op->baseNum + safely;
|
|
assert(v[i+safely] >= 0);
|
|
} else {
|
|
if (!safely) {
|
|
v[i] = -1;
|
|
}
|
|
}
|
|
}
|
|
enterStateMap(im, v, width(d->map->count-(2-safely)), &new);
|
|
if (!new) {
|
|
zfree(v);
|
|
}
|
|
d->pmap = im;
|
|
}
|
|
break;
|
|
case 2:
|
|
if (op->table->dimen[0]->map->count == (2-safely) && op->table->dimen[1]->map->count == (2-safely)) {
|
|
op->table->dimen[0]->pmap = 0;
|
|
op->table->dimen[1]->pmap = 0;
|
|
} else if (op->table->dimen[0]->map->count == (2-safely)) {
|
|
v = newVector();
|
|
im = newPlankMap(op->baseNum);
|
|
d = op->table->dimen[1];
|
|
for (i = 0; i < globalMap->count-1; i++) {
|
|
int index = d->map->set[d->index_map.class[sortedStates[i]->num]->num]->num;
|
|
if (index) {
|
|
Item_Set *ts = transLval(op->table, 1, index);
|
|
v[i+safely] = (*ts)->newNum - op->baseNum+safely;
|
|
assert(v[i+safely] >= 0);
|
|
} else {
|
|
if (!safely) {
|
|
v[i] = -1;
|
|
}
|
|
}
|
|
}
|
|
enterStateMap(im, v, width(d->map->count-(2-safely)), &new);
|
|
if (!new) {
|
|
zfree(v);
|
|
}
|
|
d->pmap = im;
|
|
} else if (op->table->dimen[1]->map->count == (2-safely)) {
|
|
v = newVector();
|
|
im = newPlankMap(op->baseNum);
|
|
d = op->table->dimen[0];
|
|
for (i = 0; i < globalMap->count-1; i++) {
|
|
int index = d->map->set[d->index_map.class[sortedStates[i]->num]->num]->num;
|
|
if (index) {
|
|
Item_Set *ts = transLval(op->table, index, 1);
|
|
v[i +safely] = (*ts)->newNum - op->baseNum +safely;
|
|
assert(v[i +safely] >= 0);
|
|
} else {
|
|
if (!safely) {
|
|
v[i] = -1;
|
|
}
|
|
}
|
|
}
|
|
enterStateMap(im, v, width(d->map->count-(2-safely)), &new);
|
|
if (!new) {
|
|
zfree(v);
|
|
}
|
|
d->pmap = im;
|
|
} else {
|
|
op->table->dimen[0]->pmap = mapToPmap(op->table->dimen[0]);
|
|
op->table->dimen[1]->pmap = mapToPmap(op->table->dimen[1]);
|
|
/* output table */
|
|
fprintf(outfile, "static unsigned %s %s_%s_transition[%d][%d] = {",
|
|
op->stateCount <= 255 ? "char" : "short",
|
|
prefix,
|
|
op->name,
|
|
op->table->dimen[0]->map->count-(1-safely),
|
|
op->table->dimen[1]->map->count-(1-safely));
|
|
for (i = (1-safely); i < op->table->dimen[0]->map->count; i++) {
|
|
if (i > (1-safely)) {
|
|
fprintf(outfile, ",");
|
|
}
|
|
fprintf(outfile, "\n{");
|
|
for (j = (1-safely); j < op->table->dimen[1]->map->count; j++) {
|
|
Item_Set *ts = transLval(op->table, i, j);
|
|
short diff;
|
|
if (j > (1-safely)) {
|
|
fprintf(outfile, ",");
|
|
if (j % 10 == (1-safely)) {
|
|
fprintf(outfile, "\t/* row %d, cols %d-%d*/\n",
|
|
i-(1-safely),
|
|
j-(11-safely),
|
|
j-(2-safely));
|
|
}
|
|
}
|
|
if ((*ts)->num > 0) {
|
|
diff = (*ts)->newNum - op->baseNum +safely;
|
|
} else {
|
|
diff = safely ? 0 : -1;
|
|
}
|
|
fprintf(outfile, "%5d", diff);
|
|
}
|
|
fprintf(outfile, "}\t/* row %d */", i-(1-safely));
|
|
}
|
|
fprintf(outfile, "\n};\n");
|
|
}
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
|
|
static NonTerminal *ntVector;
|
|
|
|
static void
|
|
doNonTermPmaps(n) NonTerminal n;
|
|
{
|
|
short *v;
|
|
PlankMap im;
|
|
int new;
|
|
int i;
|
|
|
|
ntVector[n->num] = n;
|
|
if (n->num >= last_user_nonterminal) {
|
|
return;
|
|
}
|
|
if (n->ruleCount <= (safely?0:1)) {
|
|
return;
|
|
}
|
|
im = newPlankMap(n->baseNum);
|
|
v = newVector();
|
|
for (i = 0; i < globalMap->count-1; i++) {
|
|
Rule r = globalMap->set[sortedStates[i]->num]->closed[n->num].rule;
|
|
if (r) {
|
|
r->used = 1;
|
|
v[i+safely] = r->newNum - n->baseNum /*+safely*/;
|
|
assert(v[i+safely] >= 0);
|
|
} else {
|
|
if (!safely) {
|
|
v[i] = -1;
|
|
}
|
|
}
|
|
}
|
|
enterStateMap(im, v, width(n->ruleCount+safely), &new);
|
|
if (!new) {
|
|
zfree(v);
|
|
}
|
|
n->pmap = im;
|
|
}
|
|
|
|
static void
|
|
makePmaps()
|
|
{
|
|
foreachList((ListFn) doDimPmaps, operators);
|
|
ntVector = (NonTerminal*) zalloc((max_nonterminal) * sizeof(NonTerminal));
|
|
foreachList((ListFn) doNonTermPmaps, nonterminals);
|
|
}
|
|
|
|
static void
|
|
outPlank(p) Plank p;
|
|
{
|
|
List f;
|
|
int i;
|
|
|
|
fprintf(outfile, "static struct {\n");
|
|
|
|
for (f = p->fields; f; f = f->next) {
|
|
StateMap sm = (StateMap) f->x;
|
|
fprintf(outfile, "\tunsigned int %s:%d;\n", sm->fieldname, sm->width);
|
|
}
|
|
|
|
fprintf(outfile, "} %s[] = {\n", p->name);
|
|
|
|
for (i = 0; i < globalMap->count-(safely?0:1); i++) {
|
|
fprintf(outfile, "\t{");
|
|
for (f = p->fields; f; f = f->next) {
|
|
StateMap sm = (StateMap) f->x;
|
|
fprintf(outfile, "%4d,", sm->value[i] == -1 ? ERROR_VAL : sm->value[i]);
|
|
}
|
|
fprintf(outfile, "},\t/* row %d */\n", i);
|
|
}
|
|
|
|
fprintf(outfile, "};\n");
|
|
}
|
|
|
|
static void
|
|
purgePlanks(planks) List planks;
|
|
{
|
|
List p;
|
|
|
|
for (p = planks; p; p = p->next) {
|
|
Plank x = (Plank) p->x;
|
|
outPlank(x);
|
|
}
|
|
}
|
|
|
|
static void
|
|
inToEx()
|
|
{
|
|
int i;
|
|
int counter;
|
|
|
|
fprintf(outfile, "static short %s_eruleMap[] = {\n", prefix);
|
|
counter = 0;
|
|
for (i = 0; i < max_ruleAST; i++) {
|
|
if (counter > 0) {
|
|
fprintf(outfile, ",");
|
|
if (counter % 10 == 0) {
|
|
fprintf(outfile, "\t/* %d-%d */\n", counter-10, counter-1);
|
|
}
|
|
}
|
|
if (counter < sortedRules[i]->rule->newNum) {
|
|
assert(counter == sortedRules[i]->rule->newNum-1);
|
|
fprintf(outfile, "%5d", 0);
|
|
counter++;
|
|
if (counter > 0) {
|
|
fprintf(outfile, ",");
|
|
if (counter % 10 == 0) {
|
|
fprintf(outfile, "\t/* %d-%d */\n", counter-10, counter-1);
|
|
}
|
|
}
|
|
}
|
|
fprintf(outfile, "%5d", sortedRules[i]->rule->erulenum);
|
|
counter++;
|
|
}
|
|
fprintf(outfile, "\n};\n");
|
|
}
|
|
|
|
static void
|
|
makePlankRuleMacros()
|
|
{
|
|
int i;
|
|
|
|
for (i = 1; i < last_user_nonterminal; i++) {
|
|
List es;
|
|
PlankMap im = ntVector[i]->pmap;
|
|
fprintf(outfile, "#define %s_%s_rule(state)\t", prefix, ntVector[i]->name);
|
|
if (im) {
|
|
fprintf(outfile, "%s_eruleMap[", prefix);
|
|
for (es = im->exceptions; es; es = es->next) {
|
|
Exception e = (Exception) es->x;
|
|
fprintf(outfile, "((state) == %d ? %d :",
|
|
e->index, e->value);
|
|
}
|
|
fprintf(outfile, "%s[state].%s",
|
|
im->values->plank->name,
|
|
im->values->fieldname);
|
|
for (es = im->exceptions; es; es = es->next) {
|
|
fprintf(outfile, ")");
|
|
}
|
|
fprintf(outfile, " +%d]", im->offset);
|
|
|
|
} else {
|
|
/* nonterminal never appears on LHS. */
|
|
assert(ntVector[i] == start);
|
|
fprintf(outfile, "0");
|
|
}
|
|
fprintf(outfile, "\n");
|
|
}
|
|
fprintf(outfile, "\n");
|
|
}
|
|
|
|
static void
|
|
makePlankRule()
|
|
{
|
|
int i;
|
|
|
|
makePlankRuleMacros();
|
|
|
|
/* fprintf(outfile, "#ifdef __STDC__\n"); */
|
|
fprintf(outfile, "int %s_rule(int state, int goalnt) {\n", prefix);
|
|
/* fprintf(outfile, "#else\n"); */
|
|
/* fprintf(outfile, "int %s_rule(state, goalnt) int state; int goalnt; {\n", prefix); */
|
|
/* fprintf(outfile, "#endif\n"); */
|
|
|
|
fprintf(outfile,
|
|
"\t%s_assert(state >= 0 && state < %d, %s_PANIC(\"Bad state %%d passed to %s_rule\\n\", state));\n",
|
|
prefix, globalMap->count-(safely?0:1), prefix, prefix);
|
|
fprintf(outfile, "\tswitch(goalnt) {\n");
|
|
|
|
for (i = 1; i < last_user_nonterminal; i++) {
|
|
fprintf(outfile, "\tcase %d:\n", i);
|
|
fprintf(outfile, "\t\treturn %s_%s_rule(state);\n", prefix, ntVector[i]->name);
|
|
}
|
|
fprintf(outfile, "\tdefault:\n");
|
|
fprintf(outfile, "\t\t%s_PANIC(\"Unknown nonterminal %%d in %s_rule;\\n\", goalnt);\n", prefix, prefix);
|
|
fprintf(outfile, "\t\tabort();\n");
|
|
fprintf(outfile, "\t\treturn 0;\n");
|
|
fprintf(outfile, "\t}\n");
|
|
fprintf(outfile, "}\n");
|
|
}
|
|
|
|
static void
|
|
exceptionSwitch(es, sw, pre, post, offset, def) List es; char *sw; char *pre; char *post; int offset; char *def;
|
|
{
|
|
if (es) {
|
|
fprintf(outfile, "\t\tswitch (%s) {\n", sw);
|
|
for (; es; es = es->next) {
|
|
Exception e = (Exception) es->x;
|
|
fprintf(outfile, "\t\tcase %d: %s %d; %s\n", e->index, pre, e->value+offset, post);
|
|
}
|
|
if (def) {
|
|
fprintf(outfile, "\t\tdefault: %s;\n", def);
|
|
}
|
|
fprintf(outfile, "\t\t}\n");
|
|
} else {
|
|
if (def) {
|
|
fprintf(outfile, "\t\t%s;\n", def);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
doPlankLabel(op) Operator op;
|
|
{
|
|
PlankMap im0;
|
|
PlankMap im1;
|
|
char buf[100];
|
|
|
|
fprintf(outfile, "\tcase %d:\n", op->num);
|
|
switch (op->arity) {
|
|
case 0:
|
|
fprintf(outfile, "\t\treturn %d;\n", op->table->transition[0]->newNum);
|
|
break;
|
|
case 1:
|
|
im0 = op->table->dimen[0]->pmap;
|
|
if (im0) {
|
|
exceptionSwitch(im0->exceptions, "l", "return ", "", im0->offset, 0);
|
|
fprintf(outfile, "\t\treturn %s[l].%s + %d;\n",
|
|
im0->values->plank->name, im0->values->fieldname, im0->offset);
|
|
} else {
|
|
Item_Set *ts = transLval(op->table, 1, 0);
|
|
if (*ts) {
|
|
fprintf(outfile, "\t\treturn %d;\n", (*ts)->newNum);
|
|
} else {
|
|
fprintf(outfile, "\t\treturn %d;\n", ERROR_VAL);
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
im0 = op->table->dimen[0]->pmap;
|
|
im1 = op->table->dimen[1]->pmap;
|
|
if (!im0 && !im1) {
|
|
Item_Set *ts = transLval(op->table, 1, 1);
|
|
if (*ts) {
|
|
fprintf(outfile, "\t\treturn %d;\n", (*ts)->newNum);
|
|
} else {
|
|
fprintf(outfile, "\t\treturn %d;\n", ERROR_VAL);
|
|
}
|
|
} else if (!im0) {
|
|
exceptionSwitch(im1->exceptions, "r", "return ", "", im1->offset, 0);
|
|
fprintf(outfile, "\t\treturn %s[r].%s + %d;\n",
|
|
im1->values->plank->name, im1->values->fieldname, im1->offset);
|
|
} else if (!im1) {
|
|
exceptionSwitch(im0->exceptions, "l", "return ", "", im0->offset, 0);
|
|
fprintf(outfile, "\t\treturn %s[l].%s + %d;\n",
|
|
im0->values->plank->name, im0->values->fieldname, im0->offset);
|
|
} else {
|
|
assert(im0->offset == 0);
|
|
assert(im1->offset == 0);
|
|
sprintf(buf, "l = %s[l].%s",
|
|
im0->values->plank->name, im0->values->fieldname);
|
|
exceptionSwitch(im0->exceptions, "l", "l =", "break;", 0, buf);
|
|
sprintf(buf, "r = %s[r].%s",
|
|
im1->values->plank->name, im1->values->fieldname);
|
|
exceptionSwitch(im1->exceptions, "r", "r =", "break;", 0, buf);
|
|
|
|
fprintf(outfile, "\t\treturn %s_%s_transition[l][r] + %d;\n",
|
|
prefix,
|
|
op->name,
|
|
op->baseNum);
|
|
}
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
doPlankLabelMacrosSafely(op) Operator op;
|
|
{
|
|
PlankMap im0;
|
|
PlankMap im1;
|
|
|
|
assert(safely);
|
|
switch (op->arity) {
|
|
case -1:
|
|
fprintf(outfile, "#define %s_%s_state\t0\n", prefix, op->name);
|
|
break;
|
|
case 0:
|
|
fprintf(outfile, "#define %s_%s_state", prefix, op->name);
|
|
fprintf(outfile, "\t%d\n", op->table->transition[0]->newNum+safely);
|
|
break;
|
|
case 1:
|
|
fprintf(outfile, "#define %s_%s_state(l)", prefix, op->name);
|
|
im0 = op->table->dimen[0]->pmap;
|
|
if (im0) {
|
|
if (im0->exceptions) {
|
|
List es = im0->exceptions;
|
|
assert(0);
|
|
fprintf(outfile, "\t\tswitch (l) {\n");
|
|
for (; es; es = es->next) {
|
|
Exception e = (Exception) es->x;
|
|
fprintf(outfile, "\t\tcase %d: return %d;\n", e->index, e->value ? e->value+im0->offset : 0);
|
|
}
|
|
fprintf(outfile, "\t\t}\n");
|
|
}
|
|
fprintf(outfile, "\t( (%s_TEMP = %s[l].%s) ? %s_TEMP + %d : 0 )\n",
|
|
prefix,
|
|
im0->values->plank->name, im0->values->fieldname,
|
|
prefix,
|
|
im0->offset);
|
|
} else {
|
|
Item_Set *ts = transLval(op->table, 1, 0);
|
|
if (*ts) {
|
|
fprintf(outfile, "\t%d\n", (*ts)->newNum+safely);
|
|
} else {
|
|
fprintf(outfile, "\t%d\n", 0);
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
fprintf(outfile, "#define %s_%s_state(l,r)", prefix, op->name);
|
|
|
|
im0 = op->table->dimen[0]->pmap;
|
|
im1 = op->table->dimen[1]->pmap;
|
|
if (!im0 && !im1) {
|
|
Item_Set *ts = transLval(op->table, 1, 1);
|
|
assert(0);
|
|
if (*ts) {
|
|
fprintf(outfile, "\t\treturn %d;\n", (*ts)->newNum+safely);
|
|
} else {
|
|
fprintf(outfile, "\t\treturn %d;\n", 0);
|
|
}
|
|
} else if (!im0) {
|
|
assert(0);
|
|
if (im1->exceptions) {
|
|
List es = im1->exceptions;
|
|
fprintf(outfile, "\t\tswitch (r) {\n");
|
|
for (; es; es = es->next) {
|
|
Exception e = (Exception) es->x;
|
|
fprintf(outfile, "\t\tcase %d: return %d;\n", e->index, e->value ? e->value+im1->offset : 0);
|
|
}
|
|
fprintf(outfile, "\t\t}\n");
|
|
}
|
|
fprintf(outfile, "\t\tstate = %s[r].%s; offset = %d;\n",
|
|
im1->values->plank->name, im1->values->fieldname, im1->offset);
|
|
fprintf(outfile, "\t\tbreak;\n");
|
|
} else if (!im1) {
|
|
assert(0);
|
|
if (im0->exceptions) {
|
|
List es = im0->exceptions;
|
|
fprintf(outfile, "\t\tswitch (l) {\n");
|
|
for (; es; es = es->next) {
|
|
Exception e = (Exception) es->x;
|
|
fprintf(outfile, "\t\tcase %d: return %d;\n", e->index, e->value ? e->value+im0->offset : 0);
|
|
}
|
|
fprintf(outfile, "\t\t}\n");
|
|
}
|
|
fprintf(outfile, "\t\tstate = %s[l].%s; offset = %d;\n",
|
|
im0->values->plank->name, im0->values->fieldname, im0->offset);
|
|
fprintf(outfile, "\t\tbreak;\n");
|
|
} else {
|
|
assert(im0->offset == 0);
|
|
assert(im1->offset == 0);
|
|
/*
|
|
sprintf(buf, "l = %s[l].%s",
|
|
im0->values->plank->name, im0->values->fieldname);
|
|
exceptionSwitch(im0->exceptions, "l", "l =", "break;", 0, buf);
|
|
sprintf(buf, "r = %s[r].%s",
|
|
im1->values->plank->name, im1->values->fieldname);
|
|
exceptionSwitch(im1->exceptions, "r", "r =", "break;", 0, buf);
|
|
|
|
fprintf(outfile, "\t\tstate = %s_%s_transition[l][r]; offset = %d;\n",
|
|
prefix,
|
|
op->name,
|
|
op->baseNum);
|
|
fprintf(outfile, "\t\tbreak;\n");
|
|
*/
|
|
|
|
fprintf(outfile, "\t( (%s_TEMP = %s_%s_transition[%s[l].%s][%s[r].%s]) ? ",
|
|
prefix,
|
|
prefix,
|
|
op->name,
|
|
im0->values->plank->name, im0->values->fieldname,
|
|
im1->values->plank->name, im1->values->fieldname);
|
|
fprintf(outfile, "%s_TEMP + %d : 0 )\n",
|
|
prefix,
|
|
op->baseNum);
|
|
}
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
static void
|
|
doPlankLabelSafely(op) Operator op;
|
|
{
|
|
assert(safely);
|
|
fprintf(outfile, "\tcase %d:\n", op->num);
|
|
switch (op->arity) {
|
|
case -1:
|
|
fprintf(outfile, "\t\treturn 0;\n");
|
|
break;
|
|
case 0:
|
|
fprintf(outfile, "\t\treturn %s_%s_state;\n", prefix, op->name);
|
|
break;
|
|
case 1:
|
|
fprintf(outfile, "\t\treturn %s_%s_state(l);\n", prefix, op->name);
|
|
break;
|
|
case 2:
|
|
fprintf(outfile, "\t\treturn %s_%s_state(l,r);\n", prefix, op->name);
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
makePlankState()
|
|
{
|
|
fprintf(outfile, "\n");
|
|
fprintf(outfile, "int %s_TEMP;\n", prefix);
|
|
foreachList((ListFn) doPlankLabelMacrosSafely, operators);
|
|
fprintf(outfile, "\n");
|
|
|
|
/* fprintf(outfile, "#ifdef __STDC__\n"); */
|
|
switch (max_arity) {
|
|
case -1:
|
|
fprintf(stderr, "ERROR: no terminals in grammar.\n");
|
|
exit(1);
|
|
case 0:
|
|
fprintf(outfile, "int %s_state(int op) {\n", prefix);
|
|
/* fprintf(outfile, "#else\n"); */
|
|
/*fprintf(outfile, "int %s_state(op) int op; {\n", prefix); */
|
|
break;
|
|
case 1:
|
|
fprintf(outfile, "int %s_state(int op, int l) {\n", prefix);
|
|
/*fprintf(outfile, "#else\n"); */
|
|
/*fprintf(outfile, "int %s_state(op, l) int op; int l; {\n", prefix); */
|
|
break;
|
|
case 2:
|
|
fprintf(outfile, "int %s_state(int op, int l, int r) {\n", prefix);
|
|
/*fprintf(outfile, "#else\n"); */
|
|
/*fprintf(outfile, "int %s_state(op, l, r) int op; int l; int r; {\n", prefix); */
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
/*fprintf(outfile, "#endif\n"); */
|
|
|
|
fprintf(outfile, "\tregister int %s_TEMP;\n", prefix);
|
|
|
|
fprintf(outfile, "\tswitch (op) {\n");
|
|
opsOfArity(2);
|
|
if (max_arity >= 2) {
|
|
fprintf(outfile,
|
|
"\t\t%s_assert(r >= 0 && r < %d, %s_PANIC(\"Bad state %%d passed to %s_state\\n\", r));\n",
|
|
prefix, globalMap->count, prefix, prefix);
|
|
fprintf(outfile, "\t\t/*FALLTHROUGH*/\n");
|
|
}
|
|
opsOfArity(1);
|
|
if (max_arity > 1) {
|
|
fprintf(outfile,
|
|
"\t\t%s_assert(l >= 0 && l < %d, %s_PANIC(\"Bad state %%d passed to %s_state\\n\", l));\n",
|
|
prefix, globalMap->count, prefix, prefix);
|
|
fprintf(outfile, "\t\t/*FALLTHROUGH*/\n");
|
|
}
|
|
opsOfArity(0);
|
|
fprintf(outfile, "\t\tbreak;\n");
|
|
fprintf(outfile, "\t}\n");
|
|
|
|
if (safely) {
|
|
fprintf(outfile, "\tswitch (op) {\n");
|
|
fprintf(outfile,"\tdefault: %s_PANIC(\"Unknown op %%d in %s_state\\n\", op); abort(); return 0;\n",
|
|
prefix, prefix);
|
|
foreachList((ListFn) doPlankLabelSafely, operators);
|
|
fprintf(outfile, "\t}\n");
|
|
} else {
|
|
fprintf(outfile, "\tswitch (op) {\n");
|
|
fprintf(outfile,"\tdefault: %s_PANIC(\"Unknown op %%d in %s_state\\n\", op); abort(); return 0;\n",
|
|
prefix, prefix);
|
|
foreachList((ListFn) doPlankLabel, operators);
|
|
fprintf(outfile, "\t}\n");
|
|
}
|
|
|
|
fprintf(outfile, "}\n");
|
|
}
|
|
|
|
void
|
|
makePlanks()
|
|
{
|
|
List planks;
|
|
renumber();
|
|
makePmaps();
|
|
planks = assemblePlanks();
|
|
purgePlanks(planks);
|
|
inToEx();
|
|
makePlankRule();
|
|
makePlankState();
|
|
}
|