c1aca7dae5
--HG-- branch : dtrg-buildsystem rename : lang/cem/cpp.ansi/Parameters => lang/cem/cpp.ansi/parameters.h
265 lines
6.1 KiB
C
265 lines
6.1 KiB
C
/* H I G H L E V E L S Y M B O L E N T R Y */
|
|
|
|
#include <alloc.h>
|
|
#include <assert.h>
|
|
#include <em_arith.h>
|
|
#include <em_label.h>
|
|
|
|
#include "LLlex.h"
|
|
#include "def.h"
|
|
#include "idf.h"
|
|
#include "main.h"
|
|
#include "node.h"
|
|
#include "scope.h"
|
|
#include "type.h"
|
|
#include "dbsymtab.h"
|
|
|
|
extern int proclevel;
|
|
extern int parlevel;
|
|
|
|
struct def *
|
|
Enter(name, kind, type, pnam)
|
|
char *name;
|
|
register struct type *type;
|
|
long kind;
|
|
{
|
|
/* Enter a definition for "name" with kind "kind" and type
|
|
"type" in the Current Scope. If it is a standard name, also
|
|
put its number in the definition structure, and mark the
|
|
name as set, to inhibit warnings about used before set.
|
|
*/
|
|
register struct def *df;
|
|
|
|
df = define(str2idf(name, 0), CurrentScope, kind);
|
|
df->df_type = type;
|
|
if( pnam ) {
|
|
df->df_value.df_reqname = pnam;
|
|
df->df_flags |= D_SET;
|
|
}
|
|
#ifdef DBSYMTAB
|
|
else if (options['g']) stb_string(df, kind);
|
|
#endif /* DBSYMTAB */
|
|
return df;
|
|
}
|
|
|
|
EnterProgList(Idlist)
|
|
register struct node *Idlist;
|
|
{
|
|
register struct node *idlist = Idlist;
|
|
register struct def *df;
|
|
|
|
for( ; idlist; idlist = idlist->nd_next )
|
|
if ( !strcmp(input, idlist->nd_IDF->id_text)
|
|
||
|
|
!strcmp(output, idlist->nd_IDF->id_text)
|
|
) {
|
|
/* the occurence of input or output as program-
|
|
* parameter is their declaration as a GLOBAL
|
|
* variable of type text
|
|
*/
|
|
if( df = define(idlist->nd_IDF, CurrentScope,
|
|
D_VARIABLE) ) {
|
|
df->df_type = text_type;
|
|
df->df_flags |= (D_SET | D_PROGPAR | D_NOREG);
|
|
if( !strcmp(input, idlist->nd_IDF->id_text) ) {
|
|
df->var_name = input;
|
|
set_inp();
|
|
}
|
|
else {
|
|
df->var_name = output;
|
|
set_outp();
|
|
}
|
|
#ifdef DBSYMTAB
|
|
if (options['g']) stb_string(df, D_VARIABLE);
|
|
#endif /* DBSYMTAB */
|
|
}
|
|
}
|
|
else {
|
|
if( df = define(idlist->nd_IDF, CurrentScope,
|
|
D_PARAMETER) ) {
|
|
df->df_type = error_type;
|
|
df->df_flags |= D_PROGPAR;
|
|
df->var_name = idlist->nd_IDF->id_text;
|
|
}
|
|
}
|
|
|
|
FreeNode(Idlist);
|
|
}
|
|
|
|
EnterEnumList(Idlist, type)
|
|
struct node *Idlist;
|
|
register struct type *type;
|
|
{
|
|
/* Put a list of enumeration literals in the symbol table.
|
|
They all have type "type". Also assign numbers to them.
|
|
*/
|
|
register struct def *df, *df1 = 0;
|
|
register struct node *idlist = Idlist;
|
|
|
|
type->enm_ncst = 0;
|
|
for( ; idlist; idlist = idlist->nd_next )
|
|
if( df = define(idlist->nd_IDF, CurrentScope, D_ENUM) ) {
|
|
df->df_type = type;
|
|
df->enm_val = (type->enm_ncst)++;
|
|
df->df_flags |= D_SET;
|
|
if (! df1) {
|
|
type->enm_enums = df;
|
|
}
|
|
else df1->enm_next = df;
|
|
df1 = df;
|
|
}
|
|
FreeNode(Idlist);
|
|
}
|
|
|
|
EnterFieldList(Idlist, type, scope, addr, packed)
|
|
struct node *Idlist;
|
|
register struct type *type;
|
|
struct scope *scope;
|
|
arith *addr;
|
|
unsigned short packed;
|
|
{
|
|
/* Put a list of fields in the symbol table.
|
|
They all have type "type", and are put in scope "scope".
|
|
*/
|
|
register struct def *df;
|
|
register struct node *idlist = Idlist;
|
|
|
|
for( ; idlist; idlist = idlist->nd_next )
|
|
if( df = define(idlist->nd_IDF, scope, D_FIELD) ) {
|
|
df->df_type = type;
|
|
if( packed ) {
|
|
df->fld_flags |= F_PACKED;
|
|
df->fld_off = align(*addr, type->tp_palign);
|
|
*addr = df->fld_off + type->tp_psize;
|
|
}
|
|
else {
|
|
df->fld_off = align(*addr, type->tp_align);
|
|
*addr = df->fld_off + type->tp_size;
|
|
}
|
|
}
|
|
FreeNode(Idlist);
|
|
}
|
|
|
|
EnterVarList(Idlist, type, local)
|
|
struct node *Idlist;
|
|
struct type *type;
|
|
{
|
|
/* Enter a list of identifiers representing variables into the
|
|
name list. "type" represents the type of the variables.
|
|
"local" is set if the variables are declared local to a
|
|
procedure.
|
|
*/
|
|
register struct def *df;
|
|
register struct node *idlist = Idlist;
|
|
register struct scopelist *sc = CurrVis;
|
|
|
|
for( ; idlist; idlist = idlist->nd_next ) {
|
|
if( !(df = define(idlist->nd_IDF, CurrentScope, D_VARIABLE)) )
|
|
continue; /* skip this identifier */
|
|
df->df_type = type;
|
|
if( local ) {
|
|
/* subtract size, which is already aligned, of
|
|
* variable to the offset, as the variable list
|
|
* exists only local to a procedure
|
|
*/
|
|
sc->sc_scope->sc_off -= type->tp_size;
|
|
df->var_off = sc->sc_scope->sc_off;
|
|
}
|
|
else { /* Global name */
|
|
df->var_name = df->df_idf->id_text;
|
|
df->df_flags |= D_NOREG;
|
|
}
|
|
#ifdef DBSYMTAB
|
|
if (options['g']) stb_string(df, D_VARIABLE);
|
|
#endif /* DBSYMTAB */
|
|
}
|
|
FreeNode(Idlist);
|
|
}
|
|
|
|
arith
|
|
EnterParamList(fpl, parlist)
|
|
register struct node *fpl;
|
|
struct paramlist **parlist;
|
|
{
|
|
register arith nb_pars = (proclevel > 1) ? pointer_size : 0;
|
|
register struct node *id;
|
|
struct type *tp;
|
|
struct def *df;
|
|
|
|
for( ; fpl; fpl = fpl->nd_right ) {
|
|
assert(fpl->nd_class == Link);
|
|
|
|
tp = fpl->nd_type;
|
|
for( id = fpl->nd_left; id; id = id->nd_next )
|
|
if( df = define(id->nd_IDF, CurrentScope, D_VARIABLE) ) {
|
|
df->var_off = nb_pars;
|
|
if( fpl->nd_INT & D_VARPAR || IsConformantArray(tp) )
|
|
nb_pars += pointer_size;
|
|
else
|
|
nb_pars += tp->tp_size;
|
|
LinkParam(parlist, df);
|
|
df->df_type = tp;
|
|
df->df_flags |= fpl->nd_INT;
|
|
}
|
|
|
|
while( IsConformantArray(tp) ) {
|
|
/* we need room for the descriptors */
|
|
|
|
tp->arr_sclevel = CurrentScope->sc_level;
|
|
tp->arr_cfdescr = nb_pars;
|
|
nb_pars += 3 * word_size;
|
|
tp = tp->arr_elem;
|
|
}
|
|
}
|
|
return nb_pars;
|
|
}
|
|
|
|
arith
|
|
EnterParTypes(fpl, parlist)
|
|
register struct node *fpl;
|
|
struct paramlist **parlist;
|
|
{
|
|
/* parameters.h in heading of procedural and functional
|
|
parameters (only types are important, not the names).
|
|
*/
|
|
register arith nb_pars = 0;
|
|
register struct node *id;
|
|
struct type *tp;
|
|
struct def *df;
|
|
|
|
for( ; fpl; fpl = fpl->nd_right ) {
|
|
tp = fpl->nd_type;
|
|
for( id = fpl->nd_left; id; id = id->nd_next )
|
|
if( df = new_def() ) {
|
|
if( fpl->nd_INT & D_VARPAR ||
|
|
IsConformantArray(tp) )
|
|
nb_pars += pointer_size;
|
|
else
|
|
nb_pars += tp->tp_size;
|
|
LinkParam(parlist, df);
|
|
df->df_type = tp;
|
|
df->df_flags |= fpl->nd_INT;
|
|
}
|
|
while( IsConformantArray(tp) ) {
|
|
nb_pars += 3 * word_size;
|
|
tp = tp->arr_elem;
|
|
}
|
|
}
|
|
return nb_pars;
|
|
}
|
|
|
|
LinkParam(parlist, df)
|
|
struct paramlist **parlist;
|
|
struct def *df;
|
|
{
|
|
static struct paramlist *pr;
|
|
|
|
if( !*parlist )
|
|
*parlist = pr = new_paramlist();
|
|
else {
|
|
pr->next = new_paramlist();
|
|
pr = pr->next;
|
|
}
|
|
pr->par_def = df;
|
|
}
|