/*
* Adds a new offset list entry with the unique id and offset to an offsetList
*/
struct symbol_list_t *add_to_symbol_list(struct symbol_list_t **offsetList, const char *id, int offset) {
// List was empty so initialize
if(*offsetList == NULL) {
*offsetList = new_symbol_list();
(*offsetList)->id = new_identifier(id);
(*offsetList)->offset = offset;
return *offsetList;
} else {
struct symbol_list_t *end = *offsetList;
// Ensures only unique ids are added
while(end->next != NULL) {
if(strcmp(end->id, id) == 0)
return end;
end = end->next;
}
end->next = new_symbol_list();
end->next->id = new_identifier(id);
end->next->offset = offset;
return end->next;
}
}
/*
* Walk hash table and construct a list. If any symbols
* already belong to a list, the old list will become
* invalid.
*/
SymbolList *
symtab_to_symlist(SymbolTable * st)
{
Symbol * sym, * next;
int i;
SymbolList * list = new_symbol_list();
sym = NULL;
for (i = 0; i < SYMTAB_HASHSIZE; i++) {
for (next = st->table[i]; next; next = next->nextintable) {
if (!list->head)
list->head = next;
if (sym)
sym->nextinlist = next;
sym = next;
sym->nextinlist = NULL;
}
}
list->tail = sym;
return list;
}