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norm.c
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norm.c
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/*ident "@(#)cls4:src/norm.c 1.12" */
/*******************************************************************************
C++ source for the C++ Language System, Release 3.0. This product
is a new release of the original cfront developed in the computer
science research center of AT&T Bell Laboratories.
Copyright (c) 1993 UNIX System Laboratories, Inc.
Copyright (c) 1991, 1992 AT&T and UNIX System Laboratories, Inc.
Copyright (c) 1984, 1989, 1990 AT&T. All Rights Reserved.
THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE of AT&T and UNIX System
Laboratories, Inc. The copyright notice above does not evidence
any actual or intended publication of such source code.
norm.c:
"normalization" handles problems which could have been handled
by the syntax analyser; but has not been done. The idea is
to simplify the grammar and the actions accociated with it,
and to get a more robust error handling
****************************************************************************/
#include "cfront.h"
#include "size.h"
#include "template.h"
// SYM -- table defs
Pktab Gtbl;
Pktab Ctbl;
Pname sta_name = 0;
static Ptype generic_tpdef = 0;
void syn_init() {
generic_tpdef = new type;
generic_tpdef->base = TPDEF;
PERM(generic_tpdef);
any_type = new basetype(ANY, 0);
PERM(any_type);
any_type->defined = DEFINED;
dummy = new expr(DUMMY, 0, 0);
PERM(dummy);
dummy->tp = any_type;
zero = new expr(ZERO, 0, 0);
PERM(zero);
sta_name = new name;
PERM(sta_name);
// SYM -- init new tables
Gtbl = new ktable(GTBLSIZE, 0, 0); // SYM
Ctbl = Gtbl; // SYM
}
int stcount;
char *make_name(TOK c) {
char *s = new char[8]; // as it happens: fits in two words
if (10000 <= ++stcount)
error('i', "too many generatedNs");
sprintf(s, "__%c%d", c, stcount);
return s;
}
Pbase basetype::type_adj(TOK t) {
DB(if (Ndebug >= 1) error('d', "'%k'->type_adj(%k) --%t b_xname%n", base, t, this, b_xname););
if (b_xname) {
if (base)
error("badBT:%n%k", b_xname, t);
else {
base = TYPE;
b_name = b_xname;
}
b_xname = 0;
}
switch (t) {
case TYPEDEF:
if (b_typedef)
error('w', "two typedefs");
else if (b_inline) {
error("badBT:%k and%k", INLINE, TYPEDEF);
b_typedef = 0;
} else
b_typedef = 1;
break;
case INLINE:
if (b_inline)
error('w', "two inlines");
else if (b_typedef) {
error("badBT:%k and%k", TYPEDEF, INLINE);
b_inline = 0;
} else
b_inline = 1;
break;
case VIRTUAL:
b_virtual = 1;
break;
case CONST:
if (b_const)
error('w', "two const declarators");
b_const = 1;
break;
case UNSIGNED:
b_unsigned = 1;
break;
case SHORT:
b_short = 1;
break;
case LONG:
if (b_long)
error('w', "two long declarators");
if (base == DOUBLE)
base = LDOUBLE;
else
b_long = 1;
break;
case FRIEND:
case OVERLOAD:
case EXTERN:
case STATIC:
case AUTO:
case REGISTER:
if (b_sto)
error("badBT:%k%k", b_sto, t);
else
b_sto = t;
break;
case DOUBLE:
if (b_long) {
t = LDOUBLE;
b_long = 0;
}
// no break
case VOID:
case CHAR:
case INT:
case FLOAT:
if (base)
error("badBT:%k%k", base, t);
else
base = t;
break;
case SIGNED:
case VOLATILE:
error('w', "\"%k\" not implemented (ignored)", t);
break;
default:
error('i', "BT::type_adj(%k)", t);
}
return this;
}
Pbase basetype::name_adj(Pname n) {
DB(if (Ndebug >= 1) error('d', "'%k'->name_adj(%n) --%t b_xname%n", base, n, this, b_xname));
if (b_xname) {
if (base)
error("badBT:%n%n", b_xname, n);
else {
base = TYPE;
b_name = b_xname;
}
b_xname = 0;
}
if (base == 0 && n->base == TNAME
&& (n->tp->base != COBJ // SYM || in_arg_list )) {
|| Ctbl->k_id == ARG)) {
base = TYPE;
b_name = n;
} else
b_xname = n;
return this;
}
static TOK type_set(Pbase b) {
TOK t = 0;
if (b->b_long)
t = LONG;
else if (b->b_short)
t = SHORT;
else if (b->b_unsigned)
t = UNSIGNED;
else if (b->b_inline)
t = INLINE;
else if (b->b_virtual)
t = VIRTUAL;
else if (b->b_sto == OVERLOAD)
t = OVERLOAD;
return t;
}
int declTag = 1;
Pbase basetype::base_adj(Pbase b) {
DB(if (Ndebug >= 1) error('d', "'%k'->base_adj(%t) --%t b_xname%n", base, b, this, b_xname));
Pname bn = b->b_name;
switch (base) {
case COBJ:
case EOBJ:
error("NX after%k%n", base, b_name);
return this;
}
TOK t;
if (base) {
if (b_name)
error("badBT:%k%n%k%n", base, b_name, b->base, bn);
else
error("badBT:%k%k%n", base, b->base, bn);
} else if (t = type_set(this)) {
if (b_name)
error("badBT:%k%n%k%n", t, b_name, b->base, bn);
else {
if (declTag++ && !(t == INLINE && b->base == EOBJ))
error("badBT:%k%k%n", t, b->base, bn);
base = b->base;
b_name = bn;
// error('d',"base_adj: t: %k", t );
}
} else {
base = b->base;
b_name = bn;
b_table = b->b_table;
}
return this;
}
Pbase basetype::check(Pname n)
/*
"n" is the first name to be declared using "this"
check the consistency of "this"
and use "b_xname" for "n->string" if possible and needed
*/
{
b_inline = 0;
b_virtual = 0;
// error('d',"basetype::check(%n) base %k b_xname %n",n,base,b_xname);
if (b_xname && (n->tp || n->string)) {
if (base)
error("badBT:%k%n", base, b_xname);
else {
base = TYPE;
b_name = b_xname;
}
b_xname = 0;
}
if (b_xname) {
if (n->string)
error("twoNs inD:%n%n", b_xname, n);
else {
n->string = b_xname->string;
b_xname->hide(); // SYM?
}
b_xname = 0;
}
if (ccl == 0 && n && n->n_oper == TNAME && !in_typedef && n->n_qualifier == 0
&& n->string) { // hide type name
Pname nx = k_find_name(n->string, Ctbl, 0); // SYM
if (nx && nx->base == TNAME)
nx->hide();
}
int defa = 0;
switch (base) {
case 0:
defa = 1;
base = INT;
break;
case EOBJ:
case COBJ:
if (b_name->base == TNAME)
error('i', "TN%n inCO %p", b_name, this);
}
if (b_long || b_short) {
TOK sl = (b_short) ? SHORT : LONG;
if (b_long && b_short)
error("badBT:long short%k%n", base, n);
if (base != INT)
error("badBT:%k%k%n", sl, base, n);
else
base = sl;
b_short = b_long = 0;
}
if (b_typedef && b_sto)
error("badBT:Tdef%k%n", b_sto, n);
b_typedef = b_sto = 0;
if (b_linkage) {
if (1 <= bl_level)
error("local linkage directive");
}
if (Pfctvec_type == 0)
return this;
if (b_const) {
if (b_unsigned) {
switch (base) {
default:
error("badBT: unsigned const %k%n", base, n);
b_unsigned = 0;
case LONG:
case SHORT:
case INT:
case CHAR:
return this;
}
}
return this;
} else if (b_unsigned) {
switch (base) {
case LONG:
delete this;
return ulong_type;
case SHORT:
delete this;
return ushort_type;
case INT:
delete this;
return uint_type;
case CHAR:
delete this;
return uchar_type;
default:
error("badBT: unsigned%k%n", base, n);
b_unsigned = 0;
return this;
}
} else {
switch (base) {
case LONG:
delete this;
return long_type;
case SHORT:
delete this;
return short_type;
case INT:
if (this == int_type || this == defa_type)
return this;
delete this;
if (defa)
return defa_type;
return int_type;
case CHAR:
delete this;
return char_type;
case VOID:
delete this;
return void_type;
case TYPE:
/* use a single base saved in the keyword */
if (b_name->n_qualifier) {
Pbase rv = Pbase(b_name->n_qualifier);
delete this;
return rv;
} else {
PERM(this);
b_name->n_qualifier = (Pname) this;
return this;
}
default:
return this;
}
}
}
static int check_redef(Pname on, Pname nn) {
// nn is a new typedef
// on was returned from insert_type()
// check for conflicts
// return 1 for duplicate def, else 0
if (Nold) { // SYM type name was already in symbol table
// error('d',"'%n'->tdef() -- redef%t,%t",on,on->tp,nn->tp);
// error('d'," -- nn->base%k, on->base%k, nn->n_oper%k,
// on->n_key%k",nn->base,on->base,nn->n_oper,on->n_key);
if (on->tp->check(nn->tp, 0) == 0) { // duplicate typedef
nn->base = TNAME;
return 1; // avoid infinite loop for typedef I I;
}
if (nn->tpdef->in_class && nn->tpdef->in_class->csu == ANON) {
if (nn->tpdef->defined == 0)
error(&nn->where, "twoDs of %s (one in anonymous union)", nn->string);
} else if (on->tpdef)
error(&nn->where, "%n redefined:Tdef%t andTdef%t", on, on->tp, nn->tp);
else
error(&nn->where, "%n redefined:%t andTdef%t", on, on->tp, nn->tp);
// kluge: avoid printing error twice for nested anon
nn->tpdef->defined = 1;
Pname nw = new name;
Pname x = on;
x->n_key = VOID; // anything to get rid of it
*nw = *nn;
nw->n_tbl_list = 0;
nw->n_ktable = 0;
nw->n_table = 0;
on = insert_type(nw, Ctbl, TYPE);
if (Nold)
error('i', &nn->where, "cannot recover");
on->n_hidden = x;
}
if (on->n_key == HIDDEN) {
if (nn->tpdef->in_class && nn->tpdef->in_class->csu == ANON) {
if (nn->tpdef->defined == 0)
error(&nn->where, "twoDs of %s (one in anonymous union)", nn->string);
} else
error(&nn->where, "%n redefined: identifier andTdef", on);
// kluge: avoid printing error twice for nested anon
nn->tpdef->defined = 1;
}
return 0;
}
Pname basetype::aggr()
/*
"type SM" seen e.g. struct s {};
class x;
enum e;
int tname;
friend cname;
friend class x;
int;
typedef int i; // where i is tname
convert
union { ... };
into
union name { ... } name ;
*/
{
DB(if (Ndebug >= 1) error('d', "'%k'->aggr() --%t b_xname%n ccl%t", base, this, b_xname, ccl));
if (b_xname) {
if (base) {
Pname n = new name(b_xname->string);
// b_xname->hide();//SYM?
b_xname = 0;
return n->normalize(this, 0, 0);
} else {
base = TYPE;
b_name = b_xname;
b_xname = 0;
}
}
switch (base) {
case COBJ: {
Pclass cl = Pclass(b_name->tp);
char *s = cl->string;
/*SYM?*/ if (cl->class_base != CL_TEMPLATE
&& (cl->in_class == 0 || cl->in_class->class_base != CL_TEMPLATE)
&& b_name->base == TNAME)
error('i', "TN%n inCO", b_name);
if (b_const)
error("const%k%n", cl->csu, b_name);
if (cl->c_body == 2) { /* body seen */
if (s[0] == '_' && s[1] == '_' && s[2] == 'C') {
char *ss = new char[8]; // max size of generated name is 7 chars, see make_name()
Pname obj = new name(ss);
strcpy(ss, s);
if (cl->csu == UNION && cl->class_base != CL_TEMPLATE) {
ss[2] = 'O';
cl->csu = ANON;
Pname un = obj->normalize(this, 0, 0);
// SYM -- export anon union names
// SYM to current table
int i = 1;
Pname nn = cl->k_tbl->get_mem(i);
for (; nn; NEXT_NAME(cl->k_tbl, nn, i)) {
if (nn->string == 0)
continue;
if (nn->base == NAME) {
insert_name(new name(nn->string), Ctbl);
} else if (nn->tp == 0) {
error('i', "BT::aggr(): nullT for%n in anon union", nn);
} else {
Pname nx = new name(nn->string);
nx->tp = nn->tp;
nx->tpdef = nn->tpdef;
nx->where = nn->where;
if (nn->tpdef) {
nx = insert_type(nx, Ctbl, TYPE);
check_redef(nx, nn);
} else {
switch (nx->tp->base) {
case COBJ: {
Pclass mcl = (Pclass) Pbase(nn->tp)->b_name->tp;
if (mcl->csu != ANON
&& !(mcl->string[0] == '_' && mcl->string[1] == '_'
&& mcl->string[2] == 'C')) {
nx = insert_type(nx, Ctbl, mcl->csu);
if (Nold) {
Pname x = nx->tp->is_cl_obj();
Pclass ocl = x ? Pclass(x->tp) : 0;
if (ocl == 0 || strcmp(ocl->string, mcl->string)
|| (ocl->defined & (DEF_SEEN | DEFINED))
&& (mcl->defined & (DEF_SEEN | DEFINED)))
error(&nn->where,
"twoDs of %s (one in anonymous union)",
nn->string);
else if (mcl->defined & (DEF_SEEN | DEFINED))
nx->tp = nn->tp;
}
}
} break;
case EOBJ:
if (nn->string[0] == '_' && nn->string[1] == '_'
&& nn->string[2] == 'E')
break;
nx = insert_type(nx, Ctbl, ENUM);
if (Nold) {
Ptype t = nx->tp->skiptypedefs();
Penum oe =
t->base == EOBJ ? (Penum) Pbase(t)->b_name->tp : 0;
t = nn->tp->skiptypedefs();
Penum ne =
t->base == EOBJ ? (Penum) Pbase(t)->b_name->tp : 0;
if (oe == 0 || strcmp(oe->string, ne->string)
|| (oe->defined & (DEF_SEEN | DEFINED))
&& (ne->defined & (DEF_SEEN | DEFINED)))
error(&nn->where,
"twoDs of %s (one in anonymous union)",
nn->string);
else if (ne->defined & (DEF_SEEN | DEFINED))
nx->tp = nn->tp;
}
break;
default:
error('i', &nn->where, "missing tpdef forTdefN %s",
nx->string);
} // switch
} // else tag
// error('d',&nn->where,"exportingTN %n%t",nx,nx->tp);
} // else TNAME
} // for nn
return un;
}
if (cl->class_base != CL_TEMPLATE)
error('w', "unusable%k ignored", cl->csu);
}
if (b_sto == FRIEND)
error("friend%k%n{...} -- may only declare a friendC", cl->csu, b_name);
cl->c_body = 1;
return b_name;
} else { /* really a typedef for cfront only: class x; */
if (b_sto == FRIEND)
goto frr;
Pname nn = new name(cl->string);
nn->tp = b_name->tp;
nn->n_key = REF;
return nn;
}
}
case EOBJ: {
Penum en = Penum(b_name->tp);
/*SYM?*/ if (b_name->base == TNAME)
error('i', "TN%n in enumO", b_name);
if (b_const)
error("const enum%n", b_name);
if (en->e_body == 2) {
en->e_body = 1;
return b_name;
} else {
error("forwardD of enum%n", b_name);
en->e_type = int_type;
}
return 0;
}
case 0: {
Pname n = new name(make_name('D'));
n->tp = defa_type;
error("NX inDL");
return n;
}
default:
if (b_typedef)
error('w', "illegalTdef ignored");
if (b_sto == FRIEND && b_name) {
frr: // see also name::normalize(), stc == FRIEND
Pname fr = k_find_name(b_name->string, Ctbl, 0); // SYM
if (fr == 0 || fr->base != TNAME)
error('i', "cannot find friend%n", b_name);
Pname n = new name(b_name->string);
n->n_sto = FRIEND;
// If it is a parameterized type, use the instantiation
// type, not the general type.
if ((fr->tp->base == COBJ)
&& (Pclass(Pbase(fr->tp)->b_name->tp)->class_base == CL_TEMPLATE)) {
if (base == COBJ)
n->tp = this;
else if ((base == TYPE) && (Pbase(this)->b_name->base == TNAME)
&& (Pbase(this)->b_name->tp->base == COBJ))
n->tp = Pbase(this)->b_name->tp;
else
error('i', "basetype wasn't a COBJ");
} else
n->tp = fr->tp;
return n;
} else {
Pname n = new name(make_name('D'));
n->tp = defa_type;
error("NX inDL");
return n;
}
}
}
// SYM -- removed void local_name()
// SYM void local_restore() removed
// SYM -- local_hide() removed
// SYM void nested_restore() removed
// SYM nested_hide(Pname) removed
// SYM static void nested_hide( Plist l ) removed
int defer_check = 0;
// SYM removed Pname statStat = 0;
void name::hide()
/*
hide "this": that is, "this" should not be a keyword in this scope
*/
{
if (base != TNAME)
return;
// error('d',"'%n '->hide() -- %t lex_level %d bl_level %d",this,tp,lex_level,::bl_level);
if (n_key == 0) {
if (lex_level == bl_level && in_arg_list == 0) {
if (tp->base != COBJ) {
// error('d',"%n::hide() -- in_typedef base%k %t
// %t",this,in_typedef->base,tp,in_typedef);
if (in_typedef && in_typedef->base && tp->base != type_set(Pbase(in_typedef))
&& in_typedef->check(tp, 0)) {
if (defer_check == 0)
error("%n redefined: previous: %t now: %t", this, tp, in_typedef);
}
} else {
// error('d',"in_typedef%t %d tp%t %d",in_typedef,in_typedef,tp,tp);
// error('d',"in_typedef%k tp%k",in_typedef->base,tp->base);
if (in_typedef && in_typedef->base && in_typedef->check(tp, 0)) {
if (defer_check == 0)
error("%n redefined: previous: %t now: %t", this, tp, in_typedef);
} else {
Pname nn = Pbase(tp)->b_name;
Pclass cl = Pclass(nn->tp);
// check for 'typedef class X X;'
// and 'typedef X X;'
if (in_typedef)
while (in_typedef->base == TYPE)
in_typedef = Pbase(in_typedef)->b_name->tp;
if (in_typedef && in_typedef->base == COBJ
&& same_class(Pclass(Pbase(in_typedef)->b_name->tp), cl))
in_typedef = tp;
else if (cl->has_ctor())
error("%n redefined: both aCNWK and %s", this,
in_typedef ? "a type name" : "an identifier");
}
}
}
// error( 'd', "%n::hide", this );
if (n_table == 0) {
// error('d',"templp: in progress: %d", templp->in_progress);
Pclass cl = 0;
if (tp->base == COBJ)
cl = tp->classtype();
if (n_template_arg == template_type_formal && templp->in_progress)
error('s', "reuse of formalYZ%n", this);
else if (cl && (cl->class_base == INSTANTIATED || cl->class_base == UNINSTANTIATED))
error("illegal use of instantiatedYC%t", cl);
else
error('i', "%n->hide() -- no n_table", this);
}
insert_name(new name(string), Ctbl);
}
}
// SYM removed Ntncheck, notReally
// SYM void set_scope(Pname tn) removed
// SYM void restore() removed
int classid; // index of generated class names
// saved and reset by grammer at start of each class def
// so nested tag indices will be relative
// -- ensures link compatibility for static member anon unions
Pname start_cl(TOK t, Pname c, Pbcl b) {
int mk_local = 0;
DB(if (Ndebug >= 1) error('d', "start_cl(%k,%n,%d) ll %d", t, c, b, c ? c->lex_level : 0););
if (c == 0) {
int save = stcount;
stcount = classid++;
c = new name(make_name('C'));
stcount = save;
c->lex_level -= in_class_decl + 1;
if (in_typedef && c->lex_level)
mk_local = 1;
// SYM else c->lex_level = 0;
} else if (ccl && ccl->lex_level == c->lex_level && strcmp(ccl->string, c->string) == 0) {
error("%k %s redefines enclosing class", t, c->string);
error('i', "can't recover from previous errors");
}
Pname n = c->tname(t); /* t ignored */
n->where = curloc;
Pbase bt = Pbase(n->tp); /* COBJ */
if (bt->base != COBJ) {
error("twoDs of%n:%t andC", n, bt);
error('i', "can't recover from previous errors");
} else {
if (strcmp(n->string, Pbase(n->tp)->b_name->string) != 0)
error("twoDs of %n:Tdef andC", n);
if (n->tp->classtype()->csu != t && (t == UNION || n->tp->classtype()->csu == UNION))
error("twoDs of%n:%k and%k", n, t, n->tp->classtype()->csu);
bt->b_name->where = curloc; // line#s in dcl()
}
// SYM for ( Pclass tc = ccl; tc; tc = tc->in_class ) {
// SYM if ( tc->lex_level == c->lex_level // c not local to mem ftn of tc
// SYM && strcmp( tc->string, c->string) == 0) {
// SYM error( "C %s redefined", c->string );
// SYM error('i', "can't recover from previous errors");
// SYM }
// error('d',"ccl: %t bl: %d in_class_decl: %d ccl->lex_level:
// %d",ccl,bl_level,in_class_decl,ccl?ccl->lex_level:0); if (templp->in_progress && (c->lex_level ==
// 0))
if (templp->in_progress && (c->lex_level == 0)
&& (ccl == 0 || (!ccl->in_class && ccl->class_base != CL_TEMPLATE)
|| bl_level != ccl->lex_level + in_class_decl + 1))
// bring the template in scope
templp->introduce_class_templ(n);
// error('d',"'%n'->start_cl() ll %d",c, c->lex_level);
// error('d'," templ %d in_cl %d in_memf %d",templp->in_progress, in_class_decl, in_mem_fct);
if (templp->in_progress && c->lex_level) {
if (in_class_decl == 0 || in_mem_fct)
if (mk_local == 0)
error('s', "localC%nWinYF", c);
else
error('s', "localCWinYF");
}
// typedef struct {} x;
if (mk_local) {
local_class = new name_list(n, local_class);
// SYM -- tn stuff removed
}
Pclass occl = ccl;
ccl = Pclass(bt->b_name->tp); /* CLASS */
if (ccl->defined)
ccl->defined |= IN_ERROR;
ccl->defined |= DEF_SEEN;
// error('d', "start_cl: %n ccl->in_class: %t lex_level: %d", n, ccl->in_class, n->lex_level );
ccl->string = n->string;
ccl->csu = t;
// error('d',"typedef: ccl %t %n", ccl, n);
if (occl == 0) {
// if specialization, ccl->templ_base set within explicit_inst()
ccl->templ_base = templp->in_progress ? BOUND_TEMPLATE : ccl->templ_base;
}
// error('d',"ccl%t %d ll %d %s",ccl,ccl,ccl->lex_level,ccl->k_tbl->whereami());
if (b) { // list of base classes
for (Pbcl bx, bb = b, l = 0; bb; bb = bx) {
bx = bb->next;
bb->next = 0;
if (bb->bclass
//&& strcmp(ccl->string,bb->bclass->string)==0
&& ((bb->bclass->nested_sig && ccl->nested_sig
&& strcmp(ccl->nested_sig, bb->bclass->nested_sig) == 0)
|| (!bb->bclass->nested_sig && !ccl->nested_sig
&& strcmp(ccl->string, bb->bclass->string) == 0)))
error(&n->where, "%n derived from itself", n);
else if (l == 0)
l = bb;
else { // append and check for duplicates
for (Pbcl ll = l;;) {
if (bb->bclass && same_class(ll->bclass, bb->bclass)) {
error("%s has %s asB twice", ccl->string, bb->bclass->string);
break;
}
if (ll->next)
ll = ll->next;
else {
bb->next = l;
l = bb;
break;
}
}
}
}
ccl->baselist = l;
// SYM notReally++; set_scope(n); notReally--;
}
return n;
}
void end_cl() {
if (templp->parameters_in_progress)
error("definition ofC %tWinY parameterL : %d", ccl, templp->parameters_in_progress);
ccl->c_body = 2;
// ccl->templ_base may be set within explicit_inst()
ccl->templ_base = templp->in_progress ? BOUND_TEMPLATE
: ccl->in_class ? ccl->in_class->templ_base : ccl->templ_base;
ccl = ccl->in_class;
// SYM -- lots of stuff removed
}
Pbase end_enum(Pname n, nlist *b) {
// error( 'd', "end_enum: %n ccl: %t", n , ccl );
bit anon = 0;
if (n == 0) {
anon = 1;
n = new name(make_name('E'));
n->lex_level = bl_level - in_class_decl; // SYM
}
// error('d',"'%n'->end_enum() ll %d",n, n->lex_level);
// error('d'," templ %d in_cl %d in_memf %d",templp->in_progress, in_class_decl, in_mem_fct);
if (templp->parameters_in_progress)
error("definition of enum %sWinY parameterL", anon ? "" : n->string);
if (templp->in_progress && n->lex_level) {
if (in_class_decl == 0 || in_mem_fct)
if (anon == 0)
error('s', "local enum%nWinYF", n);
else
error('s', "local enumWinYF");
}
n = n->tname(ENUM);
Pbase bt = (Pbase) n->tp;
if (bt->base != EOBJ) {
error("twoDs of%n:%t and enum", n, bt);
error('i', "can't recover from previous errors");
}
bt->b_name->where = curloc;
Penum en = (Penum) bt->b_name->tp;
en->e_body = 2;
en->mem = name_unlist(b);
if (en->defined) {
// shouldn't be necessary anymore with nested types
// if ( in_class_decl )
// error("%n redefined, enum tag not local to class", n);
en->defined |= IN_ERROR;
}
en->defined |= DEF_SEEN;
en->templ_base =
templp->in_progress ? BOUND_TEMPLATE : en->in_class ? en->in_class->templ_base : en->templ_base;
return bt;
}
Pname name::tdef()
/*
typedef "this"
*/
{
// error('d',&where,"'%n'->tdef()%t in_typedef %d",this,tp,in_typedef);
// error('d',&where," lex_level %d tpdef%d",lex_level,tpdef);
// error('d',&where," templ %d in_cl %d in_memf %d",templp->in_progress, in_class_decl,
// in_mem_fct);
// SYM anon_cl removed
if (n_qualifier) {
error("QdN in typedef", this);
n_qualifier = 0;
}
if (tp == 0)
error('i', "Tdef%n tp==0", this);
lex_level = bl_level - in_class_decl;
if (ccl && ccl->lex_level == lex_level) {
// error('d',&where,"Tdef%n ccl%t ll %d",this,ccl,lex_level);
tpdef = new type;
tpdef->base = TPDEF;
PERM(tpdef);
tpdef->nested_sig = make_nested_name(string, ccl);
if (strcmp(ccl->string, string) == 0) {
error(&where, "nestedTdef%n redefines immediately enclosingC", this);
// SYM lookup mechanism in front end will ignore
// SYM members with same name as class
}
tpdef->in_class = ccl;
} else
tpdef = generic_tpdef;
if (templp->in_progress && lex_level) {
if (in_class_decl == 0 || in_mem_fct)
error('s', "localTdef%nWinYF", this);
}
Pname n;
n = insert_type(this, Ctbl, TYPE); // SYM
if (tpdef->in_class) { // nested typedef
// error('d', "*****%s->tdef: %d ccl: %t", string, tpdef, ccl );
// SYM fields copied by insert()
if (tp != n->tp || tpdef != n->tpdef) // error detected below...
;
else {
n->tpdef->templ_base = templp->in_progress ? BOUND_TEMPLATE : tpdef->in_class->templ_base;
}
// error('d',"tdef: templ_base: %d", n->tpdef->templ_base);
}
// else {
// SYM removed check for clash w/nested type
// }
if (check_redef(n, this))
return n;
n->base = base = TNAME;
PERM(n);
PERM(tp);
if (tp->base == PTR)
PERM(Pptr(tp)->typ);
if (tp->base == COBJ || tp->base == EOBJ) { // typedef struct/enum { } s; => struct/enum s {};
Pname b = Pbase(tp)->b_name;
if (b->string[0] == '_' && b->string[1] == '_')
switch (tp->base) {
case COBJ: {
if (b->string[2] == 'C') {
Pclass cl = Pclass(b->tp);
b->string = n->string;
cl->string = n->string;
if (!cl->local_sig)
cl->c_strlen = strlen(cl->string);
}
break;
}
case EOBJ: {
if (b->string[2] == 'E') {
Penum en = Penum(b->tp);
b->string = n->string;
en->string = n->string;
if (!en->local_sig)
en->e_strlen = strlen(en->string);
}
}
}
}
DB(if (Ndebug >= 1) {
error('d', &where, ">>'%n'->tdef()%t returning", this, tp);
error('d', &where, " lex_level %d tpdef%t", lex_level, tpdef);
});
return n;
}
Pname name::tname(TOK csu)
/*
"csu" "this" seen, return typedef'd name for "this"
return (TNAME,x)-tp->(COBJ/EOBJ,y)-b_name->(NAME,z)-tp->(csue)
*/
{
// error('d',"'%n'::tname(%k)",this,csu);
char *s = 0;
bit nt = 0;
switch (base) {
case TNAME:
return this;
case NAME: {
Pname tn = insert_type(this, Ctbl, csu); // SYM
Pname on = new name;
tn->base = TNAME;
tn->lex_level = lex_level;
// SYM tn->n_list = n_list = 0;
n_list = 0;
string = tn->string;
*on = *this;