mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-07 05:30:31 +00:00
155 lines
3.3 KiB
C
155 lines
3.3 KiB
C
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "QF/hash.h"
|
|
|
|
#include "class.h"
|
|
#include "def.h"
|
|
#include "qfcc.h"
|
|
#include "symtab.h"
|
|
#include "type.h"
|
|
|
|
static symtab_t *free_symtabs;
|
|
static symbol_t *free_symbols;
|
|
|
|
static const char *
|
|
sym_getkey (void *k, void *unused)
|
|
{
|
|
return ((symbol_t *) k)->name;
|
|
}
|
|
|
|
symtab_t *
|
|
new_symtab (symtab_t *parent, stab_type_e type)
|
|
{
|
|
symtab_t *symtab;
|
|
int tabsize = 63;
|
|
|
|
ALLOC (16, symtab_t, symtabs, symtab);
|
|
|
|
symtab->parent = parent;
|
|
symtab->type = type;
|
|
if (symtab->type == stab_global)
|
|
tabsize = 1023;
|
|
symtab->tab = Hash_NewTable (tabsize, sym_getkey, 0, 0);
|
|
symtab->symtail = &symtab->symbols;
|
|
return symtab;
|
|
}
|
|
|
|
symbol_t *
|
|
symtab_lookup (symtab_t *symtab, const char *name)
|
|
{
|
|
symbol_t *symbol;
|
|
while (symtab) {
|
|
if ((symbol = Hash_Find (symtab->tab, name)))
|
|
return symbol;
|
|
symtab = symtab->parent;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static symbol_t *
|
|
new_symbol (void)
|
|
{
|
|
symbol_t *symbol;
|
|
ALLOC (256, symbol_t, symbols, symbol);
|
|
return symbol;
|
|
}
|
|
|
|
static void
|
|
add_symbol (symtab_t *symtab, symbol_t *symbol)
|
|
{
|
|
Hash_Add (symtab->tab, symbol);
|
|
symbol->next = *symtab->symtail;
|
|
*symtab->symtail = symbol;
|
|
symtab->symtail = &symbol->next;
|
|
}
|
|
|
|
symbol_t *
|
|
symtab_add_type (symtab_t *symtab, const char *name, type_t *type)
|
|
{
|
|
symbol_t *symbol;
|
|
if ((symbol = Hash_Find (symtab->tab, name))) {
|
|
// duplicate symbol
|
|
}
|
|
symbol = new_symbol ();
|
|
symbol->name = name;
|
|
symbol->type = sym_type;
|
|
symbol->s.type = type;
|
|
add_symbol (symtab, symbol);
|
|
return symbol;
|
|
}
|
|
|
|
symbol_t *
|
|
symtab_add_def (symtab_t *symtab, const char *name, def_t *def)
|
|
{
|
|
symbol_t *symbol;
|
|
if ((symbol = Hash_Find (symtab->tab, name))) {
|
|
// duplicate symbol
|
|
}
|
|
symbol = new_symbol ();
|
|
symbol->name = name;
|
|
symbol->type = sym_def;
|
|
symbol->s.def = def;
|
|
add_symbol (symtab, symbol);
|
|
return symbol;
|
|
}
|
|
|
|
symbol_t *
|
|
symtab_add_enum (symtab_t *symtab, const char *name, struct enumval_s *enm)
|
|
{
|
|
symbol_t *symbol;
|
|
if ((symbol = Hash_Find (symtab->tab, name))) {
|
|
// duplicate symbol
|
|
}
|
|
symbol = new_symbol ();
|
|
symbol->name = name;
|
|
symbol->type = sym_enum;
|
|
symbol->s.enm = enm;
|
|
add_symbol (symtab, symbol);
|
|
return symbol;
|
|
}
|
|
|
|
symbol_t *
|
|
symtab_add_class (symtab_t *symtab, const char *name, class_t *class)
|
|
{
|
|
symbol_t *symbol;
|
|
if ((symbol = Hash_Find (symtab->tab, name))) {
|
|
// duplicate symbol
|
|
}
|
|
symbol = new_symbol ();
|
|
symbol->name = name;
|
|
symbol->type = sym_class;
|
|
symbol->s.class = class;
|
|
add_symbol (symtab, symbol);
|
|
return symbol;
|
|
}
|
|
|
|
symtab_t *
|
|
symtab_flat_copy (symtab_t *symtab, symtab_t *parent)
|
|
{
|
|
symtab_t *newtab;
|
|
symbol_t *newsym;
|
|
symbol_t *symbol;
|
|
|
|
newtab = new_symtab (parent, stab_local);
|
|
while (symtab) {
|
|
for (symbol = symtab->symbols; symbol; symbol = symbol->next) {
|
|
if (Hash_Find (newtab->tab, symbol->name))
|
|
continue;
|
|
newsym = new_symbol ();
|
|
*newsym = *symbol;
|
|
add_symbol (newtab, newsym);
|
|
}
|
|
symtab = symtab->parent;
|
|
// Set the tail pointer so symbols in ancestor tables come before
|
|
// those in decendent tables.
|
|
newtab->symtail = &newtab->symbols;
|
|
}
|
|
// Reset the tail pointer so any symbols added to newtab come after
|
|
// those copied from the input symbol table chain.
|
|
for (symbol = newtab->symbols; symbol && symbol->next;
|
|
symbol = symbol->next)
|
|
;
|
|
newtab->symtail = symbol ? &symbol->next : &newtab->symbols;
|
|
return newtab;
|
|
}
|