void print_object(pointer P, symbol_table* table)
{
FILE* out = stdout;
if(P == NIL)
{
fputs("NIL", out);
return;
}
switch(get_type_id(P))
{
case DT_Pair:
if(is_type(pair_car(P), DT_Pair))
{
putc('(', out);
print_object(pair_car(P), table);
putc(')', out);
}
else
print_object(pair_car(P), table);
putc(' ', out);
if(pair_cdr(P) != NIL)
{
if(!is_type(pair_cdr(P), DT_Pair))
fputs(". ", out);
print_object(pair_cdr(P), table);
}
break;
case DT_Symbol:
fputs(string_from_symbol(table, *get_symbol(P)), out);
break;
case DT_Int:
fprintf(out, "%d", get_int(P));
break;
case DT_Real:
fprintf(out, "%f", get_real(P));
break;
case DT_String:
fputs(get_string(P), out);
break;
case DT_Char:
putc(get_char(P), out);
break;
case DT_TypeInfo:
print_typeinfo(P, table, out);
break;
case DT_Invalid:
fputs("#INVALID#", out);
break;
case DT_Any:
fputs("#ANY#", out);
break;
}
}
void ploy_free(pointer P)
{
if(P == NIL ||
*(dynamic_types*)P & DT_Static_Flag)
return; // Abort free for static or NIL objects.
const dynamic_type* T = get_type(get_type_id(P));
if(T->finish)
T->finish(P);
free(P);
}
static LEXEME *getTypeList(LEXEME *lex, SYMBOL *funcsp, INITLIST **lptr)
{
*lptr = NULL;
do
{
TYPE *tp = NULL;
lex = getsym(); /* past ( or , */
lex = get_type_id(lex, &tp, funcsp, sc_cast, FALSE, TRUE);
if (!tp)
break;
if (tp->type != bt_templateparam)
{
*lptr = Alloc(sizeof(INITLIST));
(*lptr)->tp = tp;
(*lptr)->exp = intNode(en_c_i, 0);
lptr = &(*lptr)->next;
}
else if (tp->templateParam->p->packed)
{
TEMPLATEPARAMLIST *tpl = tp->templateParam->p->byPack.pack;
needkw(&lex, ellipse);
while (tpl)
{
if (tpl->p->byClass.val)
{
*lptr = Alloc(sizeof(INITLIST));
(*lptr)->tp = tpl->p->byClass.val;
(*lptr)->exp = intNode(en_c_i, 0);
lptr = &(*lptr)->next;
}
tpl = tpl->next;
}
}
else
{
if (tp->templateParam->p->byClass.val)
{
*lptr = Alloc(sizeof(INITLIST));
(*lptr)->tp = tp->templateParam->p->byClass.val;
(*lptr)->exp = intNode(en_c_i, 0);
lptr = &(*lptr)->next;
}
}
} while (MATCHKW(lex, comma));
needkw(&lex, closepa);
return lex;
}
LEXEME *expression_lambda(LEXEME *lex, SYMBOL *funcsp, TYPE *atp, TYPE **tp, EXPRESSION **exp, int flags)
{
LAMBDA *self;
SYMBOL *vpl, *ths;
HASHREC *hrl;
TYPE *ltp;
STRUCTSYM ssl;
if (funcsp)
funcsp->noinline = TRUE;
IncGlobalFlag();
self = Alloc(sizeof(LAMBDA));
ltp = Alloc(sizeof(TYPE));
ltp->type = bt_struct;
ltp->syms = CreateHashTable(1);
ltp->tags = CreateHashTable(1);
ltp->size = 0;
self->captured = CreateHashTable(1);
self->oldSyms = localNameSpace->syms;
self->oldTags = localNameSpace->tags;
self->index = lambdaIndex;
self->captureMode = cmNone;
self->isMutable = FALSE;
self->captureThis = FALSE;
self->cls = makeID(sc_type, ltp, NULL, LambdaName());
ltp->sp = self->cls;
SetLinkerNames(self->cls, lk_cdecl);
self->cls->islambda = TRUE;
self->cls->structAlign = getAlign(sc_global, &stdpointer);
self->func = makeID(sc_member, ltp, NULL, "$internalFunc");
self->func->parentClass = self->cls;
self->functp = &stdauto;
self->enclosingFunc = theCurrentFunc;
if (lambdas)
lambdas->prev = self;
self->next = lambdas;
lambdas = self;
localNameSpace->syms = CreateHashTable(1);
localNameSpace->tags = CreateHashTable(1);
if (lambdas->next)
{
self->lthis = lambdas->next->lthis;
}
else if (funcsp && funcsp->parentClass)
{
self->lthis = ((SYMBOL *)funcsp->tp->syms->table[0]->p);
}
lex = getsym(); // past [
if (funcsp)
{
// can have a capture list;
if (MATCHKW(lex, assign))
{
lex = getsym();
if (MATCHKW(lex, comma) || MATCHKW(lex, closebr))
{
self->captureMode = cmValue;
skip(&lex, comma);
}
else
{
lex = backupsym();
}
}
else if (MATCHKW(lex, and))
{
lex = getsym();
if (MATCHKW(lex, comma) || MATCHKW(lex, closebr))
{
self->captureMode = cmRef;
skip(&lex, comma);
}
else
{
lex = backupsym();
}
}
if (!MATCHKW(lex, comma) && !MATCHKW(lex, closebr))
{
do
{
enum e_cm localMode = self->captureMode;
if (MATCHKW(lex, comma))
skip(&lex, comma);
if (MATCHKW(lex, kw_this))
{
lex = getsym();
if (localMode == cmValue || !self->lthis)
{
error(ERR_CANNOT_CAPTURE_THIS);
}
else
{
if (self->captureThis)
{
error(ERR_CAPTURE_ITEM_LISTED_MULTIPLE_TIMES);
}
self->captureThis = TRUE;
lambda_capture(NULL, cmThis, TRUE);
}
continue;
}
else if (MATCHKW(lex, and))
{
if (localMode == cmRef)
{
error(ERR_INVALID_LAMBDA_CAPTURE_MODE);
}
localMode = cmRef;
lex = getsym();
}
else
{
if (localMode == cmValue)
{
error(ERR_INVALID_LAMBDA_CAPTURE_MODE);
}
localMode = cmValue;
}
if (ISID(lex))
{
SYMBOL *sp = search(lex->value.s.a, localNameSpace->syms);
LAMBDA *current = lambdas;
while (current && !sp)
{
sp = search(lex->value.s.a, current->oldSyms);
current = current->next;
}
lex = getsym();
if (sp)
{
if (sp->packed)
{
if (!MATCHKW(lex, ellipse))
error(ERR_PACK_SPECIFIER_REQUIRED_HERE);
else
lex = getsym();
}
if (sp->packed)
{
int n;
TEMPLATEPARAMLIST * templateParam = sp->tp->templateParam->p->byPack.pack;
HASHREC *hr;
for (n=0; templateParam; templateParam = templateParam->next, n++);
hr = funcsp->tp->syms->table[0];
while (hr && ((SYMBOL *)hr->p) != sp)
hr = hr->next;
while (hr && n)
{
lambda_capture((SYMBOL *)hr->p, localMode, TRUE);
hr = hr->next;
n--;
}
}
else
{
lambda_capture(sp, localMode, TRUE);
}
}
else
errorstr(ERR_UNDEFINED_IDENTIFIER, lex->value.s.a);
}
else
{
error(ERR_INVALID_LAMBDA_CAPTURE_MODE);
}
} while (MATCHKW(lex, comma));
}
needkw(&lex, closebr);
}
else
{
if (!MATCHKW(lex, closebr))
{
error(ERR_LAMBDA_CANNOT_CAPTURE);
}
else
{
lex = getsym();
}
}
if (MATCHKW(lex, openpa))
{
TYPE *tpx = &stdvoid;
HASHREC *hr;
lex = getFunctionParams(lex, NULL, &self->func, &tpx, FALSE, sc_auto);
self->funcargs = self->func->tp->syms->table[0];
hr = self->func->tp->syms->table[0];
while (hr)
{
SYMBOL *sym = (SYMBOL *)hr->p;
if (sym->init)
{
error(ERR_CANNOT_DEFAULT_PARAMETERS_WITH_LAMBDA);
}
hr = hr->next;
}
if (MATCHKW(lex, kw_mutable))
{
HASHREC *hr = self->captured->table[0];
while (hr)
{
LAMBDASP *lsp = (LAMBDASP *)hr->p;
if (lsp->sym->lambdaMode == cmValue)
{
lsp->sym->tp = basetype(lsp->sym->tp);
}
hr = hr->next;
}
self->isMutable = TRUE;
lex = getsym();
}
ParseAttributeSpecifiers(&lex, funcsp, TRUE);
if (MATCHKW(lex, pointsto))
{
lex = getsym();
lex = get_type_id(lex, &self->functp, funcsp, sc_cast, FALSE, TRUE);
}
}
else
{
TYPE *tp1 = Alloc(sizeof(TYPE));
SYMBOL *spi;
tp1->type = bt_func;
tp1->size = getSize(bt_pointer);
tp1->btp = &stdvoid;
tp1->sp = self->func;
self->func->tp = tp1;
spi = makeID(sc_parameter, tp1, NULL, AnonymousName());
spi->anonymous = TRUE;
spi->tp = Alloc(sizeof(TYPE));
spi->tp->type = bt_void;
insert(spi, localNameSpace->syms);
SetLinkerNames(spi, lk_cpp);
self->func->tp->syms = localNameSpace->syms;
self->funcargs = self->func->tp->syms->table[0];
self->func->tp->syms->table[0] = NULL;
}
vpl = makeID(sc_parameter, &stdpointer, NULL, AnonymousName());
vpl->assigned = vpl->used = TRUE;
SetLinkerNames(vpl, lk_cdecl);
hrl = Alloc(sizeof(HASHREC));
hrl->p = (struct _hrintern_ *)vpl;
hrl->next = lambdas->func->tp->syms->table[0];
lambdas->func->tp->syms->table[0] = hrl;
vpl = makeID(sc_parameter, &stdpointer, NULL, AnonymousName());
vpl->assigned = vpl->used = TRUE;
SetLinkerNames(vpl, lk_cdecl);
hrl = Alloc(sizeof(HASHREC));
hrl->p = (struct _hrintern_ *)vpl;
hrl->next = lambdas->func->tp->syms->table[0];
lambdas->func->tp->syms->table[0] = hrl;
SetLinkerNames(lambdas->func, lk_cdecl);
injectThisPtr(lambdas->func, basetype(lambdas->func->tp)->syms);
lambdas->func->tp->btp = self->functp;
lambdas->func->linkage = lk_virtual;
lambdas->func->isInline = TRUE;
ssl.str = self->cls;
ssl.tmpl = NULL;
addStructureDeclaration(&ssl);
ths = makeID(sc_member, &stdpointer, NULL, "$this");
lambda_insert(ths, lambdas);
if (MATCHKW(lex, begin))
{
lex = body(lex, self->func);
}
else
{
error(ERR_LAMBDA_FUNCTION_BODY_EXPECTED);
}
dropStructureDeclaration();
localNameSpace->syms = self->oldSyms;
localNameSpace->tags = self->oldTags;
inferType();
finishClass();
*exp = createLambda(0);
*tp = lambdas->cls->tp;
lambdas = lambdas->next;
if (lambdas)
lambdas->prev = NULL;
DecGlobalFlag();
return lex;
}
bool is_type(pointer P, dynamic_types type)
{
return (P != NIL) && (get_type_id(P) == type);
}
