void ParseDeclarationPrefix(char isUnion)
{
TYP *temp1, *temp2, *temp3, *temp4;
switch (lastst) {
case id:
declid = litlate(lastid);
if (funcdecl==1)
names[nparms++] = declid;
NextToken();
if (lastst == colon) {
NextToken();
bit_width = GetIntegerExpression();
if (isUnion)
bit_offset = 0;
else
bit_offset = bit_next;
if (bit_width < 0 || bit_width > bit_max) {
error(ERR_BITFIELD_WIDTH);
bit_width = 1;
}
if (bit_width == 0 || bit_offset + bit_width > bit_max)
bit_offset = 0;
bit_next = bit_offset + bit_width;
break; // no ParseDeclarationSuffix()
}
ParseDeclarationSuffix();
break;
case star:
temp1 = maketype(bt_pointer,8);
temp1->btp = head;
head = temp1;
if(tail == NULL)
tail = head;
NextToken();
ParseDeclarationPrefix(isUnion);
break;
case openpa:
NextToken();
temp1 = head;
temp2 = tail;
head = tail = NULL;
ParseDeclarationPrefix(isUnion);
needpunc(closepa);
temp3 = head;
temp4 = tail;
head = temp1;
tail = temp2;
ParseDeclarationSuffix();
temp4->btp = head;
if(temp4->type == bt_pointer && temp4->val_flag != 0 && head != NULL)
temp4->size *= head->size;
head = temp3;
break;
default:
ParseDeclarationSuffix();
break;
}
}
// Take care of the () or [] trailing part of a ParseSpecifieraration
//
void ParseDeclarationSuffix()
{
TYP *temp1;
switch (lastst) {
case openbr:
NextToken();
temp1 = maketype(bt_pointer,0);
temp1->val_flag = 1;
temp1->btp = head;
if(lastst == closebr) {
temp1->size = 0;
NextToken();
}
else if(head != NULL) {
temp1->size = GetIntegerExpression() * head->size;
needpunc(closebr);
}
else {
temp1->size = GetIntegerExpression();
needpunc(closebr);
}
head = temp1;
if( tail == NULL)
tail = head;
ParseDeclarationSuffix();
break;
case openpa:
NextToken();
temp1 = maketype(bt_func,0);
temp1->val_flag = 1;
temp1->btp = head;
head = temp1;
if( lastst == closepa) {
NextToken();
temp1->type = bt_ifunc; // this line wasn't present
if(lastst == begin)
temp1->type = bt_ifunc;
}
else
temp1->type = bt_ifunc;
break;
}
}
// Take care of the () or [] trailing part of a declaration
//
void ParseDeclarationSuffix()
{
TYP *temp1;
int fd, npf;
char *odecl;
TYP *tempHead, *tempTail;
switch (lastst) {
case openbr:
NextToken();
temp1 = maketype(bt_pointer,0);
temp1->val_flag = 1;
temp1->isArray = TRUE;
temp1->btp = head;
if(lastst == closebr) {
temp1->size = 0;
NextToken();
}
else if(head != NULL) {
temp1->size = GetIntegerExpression((ENODE **)NULL) * head->size;
temp1->alignment = head->alignment;
needpunc(closebr);
}
else {
temp1->size = GetIntegerExpression((ENODE **)NULL);
needpunc(closebr);
}
head = temp1;
if( tail == NULL)
tail = head;
ParseDeclarationSuffix();
break;
case openpa:
NextToken();
temp1 = maketype(bt_func,0);
temp1->val_flag = 1;
temp1->btp = head;
head = temp1;
needParseFunction = TRUE;
if (tail==NULL) {
if (temp1->btp)
tail = temp1->btp;
else
tail = temp1;
}
if( lastst == closepa) {
NextToken();
// temp1->type = bt_ifunc; // this line wasn't present
if(lastst == begin) {
temp1->type = bt_ifunc;
}
else
needParseFunction = FALSE;
}
else {
temp1->type = bt_ifunc;
// Parse the parameter list for a function pointer passed as a
// parameter.
// Parse parameter list for a function pointer defined within
// a structure.
if (parsingParameterList || isStructDecl) {
fd = funcdecl;
needParseFunction = FALSE;
odecl = declid;
tempHead = head;
tempTail = tail;
ParseParameterDeclarations(10); // parse and discard
head = tempHead;
tail = tempTail;
declid = odecl;
funcdecl = fd;
needpunc(closepa);
if (lastst != begin)
temp1->type = bt_func;
}
}
break;
}
}
int ParseDeclarationPrefix(char isUnion)
{
TYP *temp1, *temp2, *temp3, *temp4;
SYM *sp;
int nn;
char buf[200];
j2:
switch (lastst) {
case kw_const:
isConst = TRUE;
NextToken();
goto j2;
case ellipsis:
case id:
j1:
declid = litlate(lastid);
if (funcdecl==1)
names[nparms++] = declid;
NextToken();
if (lastst == colon) {
NextToken();
bit_width = GetIntegerExpression((ENODE **)NULL);
if (isUnion)
bit_offset = 0;
else
bit_offset = bit_next;
if (bit_width < 0 || bit_width > bit_max) {
error(ERR_BITFIELD_WIDTH);
bit_width = 1;
}
if (bit_width == 0 || bit_offset + bit_width > bit_max)
bit_offset = 0;
bit_next = bit_offset + bit_width;
break; // no ParseDeclarationSuffix()
}
//if (lastst==closepa) {
// return 1;
//}
// if (lastst==closepa) {
// sp = search(lastid,&gsyms[0]);
// if (strcmp(lastid,"getchar")==0)
// printf("found");
// if (sp) {
// if (sp->storage_class==sc_typedef)
// head = tail = sp->tp;
// else
// head = tail = sp->tp;
//// head = tail = maketype(bt_long,4);
// }
// else {
// head = tail = maketype(bt_long,8);
// bit_max = 64;
// }
// break;
// }
ParseDeclarationSuffix();
break;
case star:
temp1 = maketype(bt_pointer,8);
temp1->btp = head;
head = temp1;
if(tail == NULL)
tail = head;
NextToken();
//if (lastst==closepa) { // (*)
// sprintf(buf,"_unnamed%d", unnamedCnt);
// unnamedCnt++;
// declid = litlate(buf);
// NextToken();
// ParseDeclarationSuffix();
// return 2;
//}
// Loop back to process additional prefix info.
goto j2;
//return ParseDeclarationPrefix(isUnion);
break;
case openpa:
NextToken();
temp1 = head;
temp2 = tail;
head = tail = (TYP *)NULL; // It might be a typecast following.
// Do we have (getchar)()
nn = ParseDeclarationPrefix(isUnion);
/*if (nn==1) {
head = temp1;
tail = temp2;
goto j1;
}*/
//else if (nn == 2) {
// head = temp1;
// tail = temp2;
// NextToken();
// ParseDeclarationSuffix();
// break;
//}
needpunc(closepa);
temp3 = head;
temp4 = tail;
head = temp1;
tail = temp2;
ParseDeclarationSuffix();
// (getchar)() returns temp4 = NULL
if (temp4!=NULL) {
temp4->btp = head;
if(temp4->type == bt_pointer && temp4->val_flag != 0 && head != NULL)
temp4->size *= head->size;
head = temp3;
}
//if (head==NULL)
// head = tail = maketype(bt_long,8);
break;
default:
ParseDeclarationSuffix();
break;
}
return 0;
}