mirror of
https://github.com/ldc-developers/ldc.git
synced 2025-05-08 03:46:02 +03:00
1660 lines
40 KiB
C
1660 lines
40 KiB
C
|
|
// Compiler implementation of the D programming language
|
|
// Copyright (c) 1999-2008 by Digital Mars
|
|
// All Rights Reserved
|
|
// written by Walter Bright
|
|
// http://www.digitalmars.com
|
|
// License for redistribution is by either the Artistic License
|
|
// in artistic.txt, or the GNU General Public License in gnu.txt.
|
|
// See the included readme.txt for details.
|
|
|
|
#include <stdio.h>
|
|
#include <assert.h>
|
|
|
|
#include "init.h"
|
|
#include "declaration.h"
|
|
#include "attrib.h"
|
|
#include "mtype.h"
|
|
#include "template.h"
|
|
#include "scope.h"
|
|
#include "aggregate.h"
|
|
#include "module.h"
|
|
#include "id.h"
|
|
#include "expression.h"
|
|
#include "hdrgen.h"
|
|
|
|
/********************************* Declaration ****************************/
|
|
|
|
Declaration::Declaration(Identifier *id)
|
|
: Dsymbol(id)
|
|
{
|
|
type = NULL;
|
|
originalType = NULL;
|
|
storage_class = STCundefined;
|
|
protection = PROTundefined;
|
|
linkage = LINKdefault;
|
|
}
|
|
|
|
void Declaration::semantic(Scope *sc)
|
|
{
|
|
}
|
|
|
|
const char *Declaration::kind()
|
|
{
|
|
return "declaration";
|
|
}
|
|
|
|
unsigned Declaration::size(Loc loc)
|
|
{
|
|
assert(type);
|
|
return type->size();
|
|
}
|
|
|
|
int Declaration::isStaticConstructor()
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
int Declaration::isStaticDestructor()
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
int Declaration::isDelete()
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
int Declaration::isDataseg()
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
int Declaration::isCodeseg()
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
enum PROT Declaration::prot()
|
|
{
|
|
return protection;
|
|
}
|
|
|
|
/*************************************
|
|
* Check to see if declaration can be modified in this context (sc).
|
|
* Issue error if not.
|
|
*/
|
|
|
|
#if DMDV2
|
|
void Declaration::checkModify(Loc loc, Scope *sc, Type *t)
|
|
{
|
|
if (sc->incontract && isParameter())
|
|
error(loc, "cannot modify parameter '%s' in contract", toChars());
|
|
|
|
if (isCtorinit())
|
|
{ // It's only modifiable if inside the right constructor
|
|
Dsymbol *s = sc->func;
|
|
while (1)
|
|
{
|
|
FuncDeclaration *fd = NULL;
|
|
if (s)
|
|
fd = s->isFuncDeclaration();
|
|
if (fd &&
|
|
((fd->isCtorDeclaration() && storage_class & STCfield) ||
|
|
(fd->isStaticCtorDeclaration() && !(storage_class & STCfield))) &&
|
|
fd->toParent() == toParent()
|
|
)
|
|
{
|
|
VarDeclaration *v = isVarDeclaration();
|
|
assert(v);
|
|
v->ctorinit = 1;
|
|
//printf("setting ctorinit\n");
|
|
}
|
|
else
|
|
{
|
|
if (s)
|
|
{ s = s->toParent2();
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
const char *p = isStatic() ? "static " : "";
|
|
error(loc, "can only initialize %sconst %s inside %sconstructor",
|
|
p, toChars(), p);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
VarDeclaration *v = isVarDeclaration();
|
|
if (v && v->canassign == 0)
|
|
{
|
|
const char *p = NULL;
|
|
if (isConst())
|
|
p = "const";
|
|
else if (isInvariant())
|
|
p = "invariant";
|
|
else if (storage_class & STCmanifest)
|
|
p = "manifest constant";
|
|
else if (!t->isAssignable())
|
|
p = "struct with immutable members";
|
|
if (p)
|
|
{ error(loc, "cannot modify %s", p);
|
|
halt();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
/********************************* TupleDeclaration ****************************/
|
|
|
|
TupleDeclaration::TupleDeclaration(Loc loc, Identifier *id, Objects *objects)
|
|
: Declaration(id)
|
|
{
|
|
this->type = NULL;
|
|
this->objects = objects;
|
|
this->isexp = 0;
|
|
this->tupletype = NULL;
|
|
}
|
|
|
|
Dsymbol *TupleDeclaration::syntaxCopy(Dsymbol *s)
|
|
{
|
|
assert(0);
|
|
return NULL;
|
|
}
|
|
|
|
const char *TupleDeclaration::kind()
|
|
{
|
|
return "tuple";
|
|
}
|
|
|
|
Type *TupleDeclaration::getType()
|
|
{
|
|
/* If this tuple represents a type, return that type
|
|
*/
|
|
|
|
//printf("TupleDeclaration::getType() %s\n", toChars());
|
|
if (isexp)
|
|
return NULL;
|
|
if (!tupletype)
|
|
{
|
|
/* It's only a type tuple if all the Object's are types
|
|
*/
|
|
for (size_t i = 0; i < objects->dim; i++)
|
|
{ Object *o = (Object *)objects->data[i];
|
|
|
|
if (o->dyncast() != DYNCAST_TYPE)
|
|
{
|
|
//printf("\tnot[%d], %p, %d\n", i, o, o->dyncast());
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* We know it's a type tuple, so build the TypeTuple
|
|
*/
|
|
Arguments *args = new Arguments();
|
|
args->setDim(objects->dim);
|
|
OutBuffer buf;
|
|
for (size_t i = 0; i < objects->dim; i++)
|
|
{ Type *t = (Type *)objects->data[i];
|
|
|
|
//printf("type = %s\n", t->toChars());
|
|
#if 0
|
|
buf.printf("_%s_%d", ident->toChars(), i);
|
|
char *name = (char *)buf.extractData();
|
|
Identifier *id = new Identifier(name, TOKidentifier);
|
|
Argument *arg = new Argument(STCin, t, id, NULL);
|
|
#else
|
|
Argument *arg = new Argument(0, t, NULL, NULL);
|
|
#endif
|
|
args->data[i] = (void *)arg;
|
|
}
|
|
|
|
tupletype = new TypeTuple(args);
|
|
}
|
|
|
|
return tupletype;
|
|
}
|
|
|
|
int TupleDeclaration::needThis()
|
|
{
|
|
//printf("TupleDeclaration::needThis(%s)\n", toChars());
|
|
for (size_t i = 0; i < objects->dim; i++)
|
|
{ Object *o = (Object *)objects->data[i];
|
|
if (o->dyncast() == DYNCAST_EXPRESSION)
|
|
{ Expression *e = (Expression *)o;
|
|
if (e->op == TOKdsymbol)
|
|
{ DsymbolExp *ve = (DsymbolExp *)e;
|
|
Declaration *d = ve->s->isDeclaration();
|
|
if (d && d->needThis())
|
|
{
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/********************************* TypedefDeclaration ****************************/
|
|
|
|
TypedefDeclaration::TypedefDeclaration(Loc loc, Identifier *id, Type *basetype, Initializer *init)
|
|
: Declaration(id)
|
|
{
|
|
this->type = new TypeTypedef(this);
|
|
this->basetype = basetype->toBasetype();
|
|
this->init = init;
|
|
#ifdef _DH
|
|
this->htype = NULL;
|
|
this->hbasetype = NULL;
|
|
#endif
|
|
this->sem = 0;
|
|
this->inuse = 0;
|
|
this->loc = loc;
|
|
this->sinit = NULL;
|
|
}
|
|
|
|
Dsymbol *TypedefDeclaration::syntaxCopy(Dsymbol *s)
|
|
{
|
|
Type *basetype = this->basetype->syntaxCopy();
|
|
|
|
Initializer *init = NULL;
|
|
if (this->init)
|
|
init = this->init->syntaxCopy();
|
|
|
|
assert(!s);
|
|
TypedefDeclaration *st;
|
|
st = new TypedefDeclaration(loc, ident, basetype, init);
|
|
#ifdef _DH
|
|
// Syntax copy for header file
|
|
if (!htype) // Don't overwrite original
|
|
{ if (type) // Make copy for both old and new instances
|
|
{ htype = type->syntaxCopy();
|
|
st->htype = type->syntaxCopy();
|
|
}
|
|
}
|
|
else // Make copy of original for new instance
|
|
st->htype = htype->syntaxCopy();
|
|
if (!hbasetype)
|
|
{ if (basetype)
|
|
{ hbasetype = basetype->syntaxCopy();
|
|
st->hbasetype = basetype->syntaxCopy();
|
|
}
|
|
}
|
|
else
|
|
st->hbasetype = hbasetype->syntaxCopy();
|
|
#endif
|
|
return st;
|
|
}
|
|
|
|
void TypedefDeclaration::semantic(Scope *sc)
|
|
{
|
|
//printf("TypedefDeclaration::semantic(%s) sem = %d\n", toChars(), sem);
|
|
if (sem == 0)
|
|
{ sem = 1;
|
|
basetype = basetype->semantic(loc, sc);
|
|
sem = 2;
|
|
type = type->semantic(loc, sc);
|
|
if (sc->parent->isFuncDeclaration() && init)
|
|
semantic2(sc);
|
|
storage_class |= sc->stc & STCdeprecated;
|
|
}
|
|
else if (sem == 1)
|
|
{
|
|
error("circular definition");
|
|
}
|
|
}
|
|
|
|
void TypedefDeclaration::semantic2(Scope *sc)
|
|
{
|
|
//printf("TypedefDeclaration::semantic2(%s) sem = %d\n", toChars(), sem);
|
|
if (sem == 2)
|
|
{ sem = 3;
|
|
if (init)
|
|
{
|
|
init = init->semantic(sc, basetype);
|
|
|
|
ExpInitializer *ie = init->isExpInitializer();
|
|
if (ie)
|
|
{
|
|
if (ie->exp->type == basetype)
|
|
ie->exp->type = type;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
const char *TypedefDeclaration::kind()
|
|
{
|
|
return "typedef";
|
|
}
|
|
|
|
Type *TypedefDeclaration::getType()
|
|
{
|
|
return type;
|
|
}
|
|
|
|
void TypedefDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
|
|
{
|
|
buf->writestring("typedef ");
|
|
basetype->toCBuffer(buf, ident, hgs);
|
|
if (init)
|
|
{
|
|
buf->writestring(" = ");
|
|
init->toCBuffer(buf, hgs);
|
|
}
|
|
buf->writeByte(';');
|
|
buf->writenl();
|
|
}
|
|
|
|
/********************************* AliasDeclaration ****************************/
|
|
|
|
AliasDeclaration::AliasDeclaration(Loc loc, Identifier *id, Type *type)
|
|
: Declaration(id)
|
|
{
|
|
//printf("AliasDeclaration(id = '%s', type = %p)\n", id->toChars(), type);
|
|
//printf("type = '%s'\n", type->toChars());
|
|
this->loc = loc;
|
|
this->type = type;
|
|
this->aliassym = NULL;
|
|
#ifdef _DH
|
|
this->htype = NULL;
|
|
this->haliassym = NULL;
|
|
#endif
|
|
this->overnext = NULL;
|
|
this->inSemantic = 0;
|
|
assert(type);
|
|
}
|
|
|
|
AliasDeclaration::AliasDeclaration(Loc loc, Identifier *id, Dsymbol *s)
|
|
: Declaration(id)
|
|
{
|
|
//printf("AliasDeclaration(id = '%s', s = %p)\n", id->toChars(), s);
|
|
assert(s != this);
|
|
this->loc = loc;
|
|
this->type = NULL;
|
|
this->aliassym = s;
|
|
#ifdef _DH
|
|
this->htype = NULL;
|
|
this->haliassym = NULL;
|
|
#endif
|
|
this->overnext = NULL;
|
|
this->inSemantic = 0;
|
|
assert(s);
|
|
}
|
|
|
|
Dsymbol *AliasDeclaration::syntaxCopy(Dsymbol *s)
|
|
{
|
|
//printf("AliasDeclaration::syntaxCopy()\n");
|
|
assert(!s);
|
|
AliasDeclaration *sa;
|
|
if (type)
|
|
sa = new AliasDeclaration(loc, ident, type->syntaxCopy());
|
|
else
|
|
sa = new AliasDeclaration(loc, ident, aliassym->syntaxCopy(NULL));
|
|
#ifdef _DH
|
|
// Syntax copy for header file
|
|
if (!htype) // Don't overwrite original
|
|
{ if (type) // Make copy for both old and new instances
|
|
{ htype = type->syntaxCopy();
|
|
sa->htype = type->syntaxCopy();
|
|
}
|
|
}
|
|
else // Make copy of original for new instance
|
|
sa->htype = htype->syntaxCopy();
|
|
if (!haliassym)
|
|
{ if (aliassym)
|
|
{ haliassym = aliassym->syntaxCopy(s);
|
|
sa->haliassym = aliassym->syntaxCopy(s);
|
|
}
|
|
}
|
|
else
|
|
sa->haliassym = haliassym->syntaxCopy(s);
|
|
#endif
|
|
return sa;
|
|
}
|
|
|
|
void AliasDeclaration::semantic(Scope *sc)
|
|
{
|
|
//printf("AliasDeclaration::semantic() %s\n", toChars());
|
|
if (aliassym)
|
|
{
|
|
if (aliassym->isTemplateInstance())
|
|
aliassym->semantic(sc);
|
|
return;
|
|
}
|
|
this->inSemantic = 1;
|
|
|
|
if (storage_class & STCconst)
|
|
error("cannot be const");
|
|
|
|
storage_class |= sc->stc & STCdeprecated;
|
|
|
|
// Given:
|
|
// alias foo.bar.abc def;
|
|
// it is not knowable from the syntax whether this is an alias
|
|
// for a type or an alias for a symbol. It is up to the semantic()
|
|
// pass to distinguish.
|
|
// If it is a type, then type is set and getType() will return that
|
|
// type. If it is a symbol, then aliassym is set and type is NULL -
|
|
// toAlias() will return aliasssym.
|
|
|
|
Dsymbol *s;
|
|
Type *t;
|
|
Expression *e;
|
|
|
|
/* This section is needed because resolve() will:
|
|
* const x = 3;
|
|
* alias x y;
|
|
* try to alias y to 3.
|
|
*/
|
|
s = type->toDsymbol(sc);
|
|
if (s && ((s->getType() && type->equals(s->getType())) || s->isEnumMember()))
|
|
goto L2; // it's a symbolic alias
|
|
|
|
//printf("alias type is %s\n", type->toChars());
|
|
type->resolve(loc, sc, &e, &t, &s);
|
|
if (s)
|
|
{
|
|
goto L2;
|
|
}
|
|
else if (e)
|
|
{
|
|
// Try to convert Expression to Dsymbol
|
|
s = getDsymbol(e);
|
|
if (s)
|
|
goto L2;
|
|
|
|
error("cannot alias an expression %s", e->toChars());
|
|
t = e->type;
|
|
}
|
|
else if (t)
|
|
type = t;
|
|
if (overnext)
|
|
ScopeDsymbol::multiplyDefined(0, this, overnext);
|
|
this->inSemantic = 0;
|
|
return;
|
|
|
|
L2:
|
|
//printf("alias is a symbol %s %s\n", s->kind(), s->toChars());
|
|
type = NULL;
|
|
VarDeclaration *v = s->isVarDeclaration();
|
|
if (v && v->linkage == LINKdefault)
|
|
{
|
|
error("forward reference of %s", v->toChars());
|
|
s = NULL;
|
|
}
|
|
else
|
|
{
|
|
FuncDeclaration *f = s->toAlias()->isFuncDeclaration();
|
|
if (f)
|
|
{
|
|
if (overnext)
|
|
{
|
|
FuncAliasDeclaration *fa = new FuncAliasDeclaration(f);
|
|
if (!fa->overloadInsert(overnext))
|
|
ScopeDsymbol::multiplyDefined(0, f, overnext);
|
|
overnext = NULL;
|
|
s = fa;
|
|
s->parent = sc->parent;
|
|
}
|
|
}
|
|
if (overnext)
|
|
ScopeDsymbol::multiplyDefined(0, s, overnext);
|
|
if (s == this)
|
|
{
|
|
assert(global.errors);
|
|
s = NULL;
|
|
}
|
|
}
|
|
aliassym = s;
|
|
this->inSemantic = 0;
|
|
}
|
|
|
|
int AliasDeclaration::overloadInsert(Dsymbol *s)
|
|
{
|
|
/* Don't know yet what the aliased symbol is, so assume it can
|
|
* be overloaded and check later for correctness.
|
|
*/
|
|
|
|
//printf("AliasDeclaration::overloadInsert('%s')\n", s->toChars());
|
|
if (overnext == NULL)
|
|
{ overnext = s;
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
return overnext->overloadInsert(s);
|
|
}
|
|
}
|
|
|
|
const char *AliasDeclaration::kind()
|
|
{
|
|
return "alias";
|
|
}
|
|
|
|
Type *AliasDeclaration::getType()
|
|
{
|
|
return type;
|
|
}
|
|
|
|
Dsymbol *AliasDeclaration::toAlias()
|
|
{
|
|
//printf("AliasDeclaration::toAlias('%s', this = %p, aliassym = %p, kind = '%s')\n", toChars(), this, aliassym, aliassym ? aliassym->kind() : "");
|
|
assert(this != aliassym);
|
|
//static int count; if (++count == 10) *(char*)0=0;
|
|
if (inSemantic)
|
|
{ error("recursive alias declaration");
|
|
// return this;
|
|
}
|
|
Dsymbol *s = aliassym ? aliassym->toAlias() : this;
|
|
return s;
|
|
}
|
|
|
|
void AliasDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
|
|
{
|
|
buf->writestring("alias ");
|
|
#if 0 && _DH
|
|
if (hgs->hdrgen)
|
|
{
|
|
if (haliassym)
|
|
{
|
|
haliassym->toCBuffer(buf, hgs);
|
|
buf->writeByte(' ');
|
|
buf->writestring(ident->toChars());
|
|
}
|
|
else
|
|
htype->toCBuffer(buf, ident, hgs);
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
if (aliassym)
|
|
{
|
|
aliassym->toCBuffer(buf, hgs);
|
|
buf->writeByte(' ');
|
|
buf->writestring(ident->toChars());
|
|
}
|
|
else
|
|
type->toCBuffer(buf, ident, hgs);
|
|
}
|
|
buf->writeByte(';');
|
|
buf->writenl();
|
|
}
|
|
|
|
/********************************* VarDeclaration ****************************/
|
|
|
|
VarDeclaration::VarDeclaration(Loc loc, Type *type, Identifier *id, Initializer *init)
|
|
: Declaration(id)
|
|
{
|
|
//printf("VarDeclaration('%s')\n", id->toChars());
|
|
#ifdef DEBUG
|
|
if (!type && !init)
|
|
{ printf("VarDeclaration('%s')\n", id->toChars());
|
|
//*(char*)0=0;
|
|
}
|
|
#endif
|
|
assert(type || init);
|
|
this->type = type;
|
|
this->init = init;
|
|
#ifdef _DH
|
|
this->htype = NULL;
|
|
this->hinit = NULL;
|
|
#endif
|
|
this->loc = loc;
|
|
offset = 0;
|
|
noauto = 0;
|
|
inuse = 0;
|
|
ctorinit = 0;
|
|
aliassym = NULL;
|
|
onstack = 0;
|
|
canassign = 0;
|
|
value = NULL;
|
|
scope = NULL;
|
|
|
|
// LDC
|
|
anonDecl = NULL;
|
|
offset2 = 0;
|
|
nakedUse = false;
|
|
}
|
|
|
|
Dsymbol *VarDeclaration::syntaxCopy(Dsymbol *s)
|
|
{
|
|
//printf("VarDeclaration::syntaxCopy(%s)\n", toChars());
|
|
|
|
VarDeclaration *sv;
|
|
if (s)
|
|
{ sv = (VarDeclaration *)s;
|
|
}
|
|
else
|
|
{
|
|
Initializer *init = NULL;
|
|
if (this->init)
|
|
{ init = this->init->syntaxCopy();
|
|
//init->isExpInitializer()->exp->print();
|
|
//init->isExpInitializer()->exp->dump(0);
|
|
}
|
|
|
|
sv = new VarDeclaration(loc, type ? type->syntaxCopy() : NULL, ident, init);
|
|
sv->storage_class = storage_class;
|
|
}
|
|
#ifdef _DH
|
|
// Syntax copy for header file
|
|
if (!htype) // Don't overwrite original
|
|
{ if (type) // Make copy for both old and new instances
|
|
{ htype = type->syntaxCopy();
|
|
sv->htype = type->syntaxCopy();
|
|
}
|
|
}
|
|
else // Make copy of original for new instance
|
|
sv->htype = htype->syntaxCopy();
|
|
if (!hinit)
|
|
{ if (init)
|
|
{ hinit = init->syntaxCopy();
|
|
sv->hinit = init->syntaxCopy();
|
|
}
|
|
}
|
|
else
|
|
sv->hinit = hinit->syntaxCopy();
|
|
#endif
|
|
return sv;
|
|
}
|
|
|
|
void VarDeclaration::semantic(Scope *sc)
|
|
{
|
|
#if 0
|
|
printf("VarDeclaration::semantic('%s', parent = '%s')\n", toChars(), sc->parent->toChars());
|
|
printf(" type = %s\n", type ? type->toChars() : "null");
|
|
printf(" stc = x%x\n", sc->stc);
|
|
printf(" storage_class = x%x\n", storage_class);
|
|
printf("linkage = %d\n", sc->linkage);
|
|
//if (strcmp(toChars(), "mul") == 0) halt();
|
|
#endif
|
|
|
|
storage_class |= sc->stc;
|
|
if (storage_class & STCextern && init)
|
|
error("extern symbols cannot have initializers");
|
|
|
|
/* If auto type inference, do the inference
|
|
*/
|
|
int inferred = 0;
|
|
if (!type)
|
|
{ inuse++;
|
|
type = init->inferType(sc);
|
|
inuse--;
|
|
inferred = 1;
|
|
|
|
/* This is a kludge to support the existing syntax for RAII
|
|
* declarations.
|
|
*/
|
|
storage_class &= ~STCauto;
|
|
originalType = type;
|
|
}
|
|
else
|
|
{ if (!originalType)
|
|
originalType = type;
|
|
type = type->semantic(loc, sc);
|
|
}
|
|
//printf(" semantic type = %s\n", type ? type->toChars() : "null");
|
|
|
|
type->checkDeprecated(loc, sc);
|
|
linkage = sc->linkage;
|
|
this->parent = sc->parent;
|
|
//printf("this = %p, parent = %p, '%s'\n", this, parent, parent->toChars());
|
|
protection = sc->protection;
|
|
//printf("sc->stc = %x\n", sc->stc);
|
|
//printf("storage_class = x%x\n", storage_class);
|
|
|
|
Dsymbol *parent = toParent();
|
|
FuncDeclaration *fd = parent->isFuncDeclaration();
|
|
|
|
Type *tb = type->toBasetype();
|
|
if (tb->ty == Tvoid && !(storage_class & STClazy))
|
|
{ error("voids have no value");
|
|
type = Type::terror;
|
|
tb = type;
|
|
}
|
|
if (tb->ty == Tfunction)
|
|
{ error("cannot be declared to be a function");
|
|
type = Type::terror;
|
|
tb = type;
|
|
}
|
|
if (tb->ty == Tstruct)
|
|
{ TypeStruct *ts = (TypeStruct *)tb;
|
|
|
|
if (!ts->sym->members)
|
|
{
|
|
error("no definition of struct %s", ts->toChars());
|
|
}
|
|
}
|
|
|
|
if (tb->ty == Ttuple)
|
|
{ /* Instead, declare variables for each of the tuple elements
|
|
* and add those.
|
|
*/
|
|
TypeTuple *tt = (TypeTuple *)tb;
|
|
size_t nelems = Argument::dim(tt->arguments);
|
|
Objects *exps = new Objects();
|
|
exps->setDim(nelems);
|
|
Expression *ie = init ? init->toExpression() : NULL;
|
|
|
|
for (size_t i = 0; i < nelems; i++)
|
|
{ Argument *arg = Argument::getNth(tt->arguments, i);
|
|
|
|
OutBuffer buf;
|
|
buf.printf("_%s_field_%"PRIuSIZE, ident->toChars(), i);
|
|
buf.writeByte(0);
|
|
char *name = (char *)buf.extractData();
|
|
Identifier *id = new Identifier(name, TOKidentifier);
|
|
|
|
Expression *einit = ie;
|
|
if (ie && ie->op == TOKtuple)
|
|
{ einit = (Expression *)((TupleExp *)ie)->exps->data[i];
|
|
}
|
|
Initializer *ti = init;
|
|
if (einit)
|
|
{ ti = new ExpInitializer(einit->loc, einit);
|
|
}
|
|
|
|
VarDeclaration *v = new VarDeclaration(loc, arg->type, id, ti);
|
|
//printf("declaring field %s of type %s\n", v->toChars(), v->type->toChars());
|
|
v->semantic(sc);
|
|
|
|
if (sc->scopesym)
|
|
{ //printf("adding %s to %s\n", v->toChars(), sc->scopesym->toChars());
|
|
if (sc->scopesym->members)
|
|
sc->scopesym->members->push(v);
|
|
}
|
|
|
|
Expression *e = new DsymbolExp(loc, v);
|
|
exps->data[i] = e;
|
|
}
|
|
TupleDeclaration *v2 = new TupleDeclaration(loc, ident, exps);
|
|
v2->isexp = 1;
|
|
aliassym = v2;
|
|
return;
|
|
}
|
|
|
|
Lagain:
|
|
if (storage_class & STCinvariant)
|
|
{
|
|
type = type->invariantOf();
|
|
}
|
|
else if (storage_class & (STCconst | STCin))
|
|
{
|
|
if (!type->isInvariant())
|
|
type = type->constOf();
|
|
}
|
|
else if (type->isConst())
|
|
storage_class |= STCconst;
|
|
else if (type->isInvariant())
|
|
storage_class |= STCinvariant;
|
|
|
|
if (isSynchronized())
|
|
{
|
|
error("variable %s cannot be synchronized", toChars());
|
|
}
|
|
else if (isOverride())
|
|
{
|
|
error("override cannot be applied to variable");
|
|
}
|
|
else if (isAbstract())
|
|
{
|
|
error("abstract cannot be applied to variable");
|
|
}
|
|
else if (storage_class & STCfinal)
|
|
{
|
|
error("final cannot be applied to variable");
|
|
}
|
|
|
|
if (storage_class & (STCstatic | STCextern | STCmanifest | STCtemplateparameter | STCtls))
|
|
{
|
|
}
|
|
else
|
|
{
|
|
AggregateDeclaration *aad = sc->anonAgg;
|
|
if (!aad)
|
|
aad = parent->isAggregateDeclaration();
|
|
if (aad)
|
|
{ assert(!(storage_class & (STCextern | STCstatic | STCtls)));
|
|
|
|
if (storage_class & (STCconst | STCinvariant) && init)
|
|
{
|
|
if (!type->toBasetype()->isTypeBasic())
|
|
storage_class |= STCstatic;
|
|
}
|
|
else
|
|
aad->addField(sc, this);
|
|
}
|
|
|
|
InterfaceDeclaration *id = parent->isInterfaceDeclaration();
|
|
if (id)
|
|
{
|
|
error("field not allowed in interface");
|
|
}
|
|
|
|
/* Templates cannot add fields to aggregates
|
|
*/
|
|
TemplateInstance *ti = parent->isTemplateInstance();
|
|
if (ti)
|
|
{
|
|
// Take care of nested templates
|
|
while (1)
|
|
{
|
|
TemplateInstance *ti2 = ti->tempdecl->parent->isTemplateInstance();
|
|
if (!ti2)
|
|
break;
|
|
ti = ti2;
|
|
}
|
|
|
|
// If it's a member template
|
|
AggregateDeclaration *ad = ti->tempdecl->isMember();
|
|
if (ad && storage_class != STCundefined)
|
|
{
|
|
error("cannot use template to add field to aggregate '%s'", ad->toChars());
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((storage_class & (STCref | STCparameter | STCforeach)) == STCref)
|
|
error("only parameters or foreach declarations can be ref");
|
|
|
|
if (type->isauto() && !noauto)
|
|
{
|
|
if (storage_class & (STCfield | STCout | STCref | STCstatic | STCmanifest | STCtls) || !fd)
|
|
{
|
|
error("globals, statics, fields, manifest constants, ref and out parameters cannot be auto");
|
|
}
|
|
|
|
if (!(storage_class & (STCauto | STCscope)))
|
|
{
|
|
if (!(storage_class & STCparameter) && ident != Id::withSym)
|
|
error("reference to scope class must be scope");
|
|
}
|
|
}
|
|
|
|
if ((isConst() || isInvariant()) && !init && !fd)
|
|
{ // Initialize by constructor only
|
|
storage_class |= STCctorinit;
|
|
}
|
|
|
|
if (init)
|
|
storage_class |= STCinit; // remember we had an explicit initializer
|
|
else if (storage_class & STCmanifest)
|
|
error("manifest constants must have initializers");
|
|
|
|
enum TOK op = TOKconstruct;
|
|
if (!init && !sc->inunion && !isStatic() && fd &&
|
|
(!(storage_class & (STCfield | STCin | STCforeach | STCparameter)) || (storage_class & STCout)) &&
|
|
type->size() != 0)
|
|
{
|
|
// Provide a default initializer
|
|
//printf("Providing default initializer for '%s'\n", toChars());
|
|
if (type->ty == Tstruct &&
|
|
((TypeStruct *)type)->sym->zeroInit == 1)
|
|
{ /* If a struct is all zeros, as a special case
|
|
* set it's initializer to the integer 0.
|
|
* In AssignExp::toElem(), we check for this and issue
|
|
* a memset() to initialize the struct.
|
|
* Must do same check in interpreter.
|
|
*/
|
|
Expression *e = new IntegerExp(loc, 0, Type::tint32);
|
|
Expression *e1;
|
|
e1 = new VarExp(loc, this);
|
|
e = new AssignExp(loc, e1, e);
|
|
e->type = e1->type; // don't type check this, it would fail
|
|
init = new ExpInitializer(loc, e);
|
|
return;
|
|
}
|
|
else if (type->ty == Ttypedef)
|
|
{ TypeTypedef *td = (TypeTypedef *)type;
|
|
if (td->sym->init)
|
|
{ init = td->sym->init;
|
|
ExpInitializer *ie = init->isExpInitializer();
|
|
if (ie)
|
|
// Make copy so we can modify it
|
|
init = new ExpInitializer(ie->loc, ie->exp);
|
|
}
|
|
else
|
|
init = getExpInitializer();
|
|
}
|
|
else
|
|
{
|
|
init = getExpInitializer();
|
|
}
|
|
// Default initializer is always a blit
|
|
op = TOKblit;
|
|
}
|
|
|
|
if (init)
|
|
{
|
|
sc = sc->push();
|
|
sc->stc &= ~(STCconst | STCinvariant | STCpure | STCnothrow | STCref | STCshared);
|
|
|
|
ArrayInitializer *ai = init->isArrayInitializer();
|
|
if (ai && tb->ty == Taarray)
|
|
{
|
|
init = ai->toAssocArrayInitializer();
|
|
}
|
|
|
|
StructInitializer *si = init->isStructInitializer();
|
|
ExpInitializer *ei = init->isExpInitializer();
|
|
|
|
// See if initializer is a NewExp that can be allocated on the stack
|
|
if (ei && isScope() && ei->exp->op == TOKnew)
|
|
{ NewExp *ne = (NewExp *)ei->exp;
|
|
if (!(ne->newargs && ne->newargs->dim))
|
|
{ ne->onstack = 1;
|
|
onstack = 1;
|
|
if (type->isBaseOf(ne->newtype->semantic(loc, sc), NULL))
|
|
onstack = 2;
|
|
}
|
|
}
|
|
|
|
// If inside function, there is no semantic3() call
|
|
if (sc->func)
|
|
{
|
|
// If local variable, use AssignExp to handle all the various
|
|
// possibilities.
|
|
if (fd && !isStatic() && !(storage_class & STCmanifest) &&
|
|
!init->isVoidInitializer())
|
|
{
|
|
//printf("fd = '%s', var = '%s'\n", fd->toChars(), toChars());
|
|
if (!ei)
|
|
{
|
|
Expression *e = init->toExpression();
|
|
if (!e)
|
|
{
|
|
init = init->semantic(sc, type);
|
|
e = init->toExpression();
|
|
if (!e)
|
|
{ error("is not a static and cannot have static initializer");
|
|
return;
|
|
}
|
|
}
|
|
ei = new ExpInitializer(init->loc, e);
|
|
init = ei;
|
|
}
|
|
|
|
Expression *e1 = new VarExp(loc, this);
|
|
|
|
Type *t = type->toBasetype();
|
|
if (t->ty == Tsarray)
|
|
{
|
|
ei->exp = ei->exp->semantic(sc);
|
|
if (!ei->exp->implicitConvTo(type))
|
|
{
|
|
int dim = ((TypeSArray *)t)->dim->toInteger();
|
|
// If multidimensional static array, treat as one large array
|
|
while (1)
|
|
{
|
|
t = t->nextOf()->toBasetype();
|
|
if (t->ty != Tsarray)
|
|
break;
|
|
dim *= ((TypeSArray *)t)->dim->toInteger();
|
|
e1->type = new TypeSArray(t->nextOf(), new IntegerExp(0, dim, Type::tindex));
|
|
}
|
|
}
|
|
e1 = new SliceExp(loc, e1, NULL, NULL);
|
|
}
|
|
else if (t->ty == Tstruct)
|
|
{
|
|
ei->exp = ei->exp->semantic(sc);
|
|
|
|
/* Look to see if initializer is a call to the constructor
|
|
*/
|
|
StructDeclaration *sd = ((TypeStruct *)t)->sym;
|
|
if (sd->ctor && // there are constructors
|
|
ei->exp->type->ty == Tstruct && // rvalue is the same struct
|
|
((TypeStruct *)ei->exp->type)->sym == sd &&
|
|
ei->exp->op == TOKstar)
|
|
{
|
|
/* Look for form of constructor call which is:
|
|
* *__ctmp.ctor(arguments...)
|
|
*/
|
|
PtrExp *pe = (PtrExp *)ei->exp;
|
|
if (pe->e1->op == TOKcall)
|
|
{ CallExp *ce = (CallExp *)pe->e1;
|
|
if (ce->e1->op == TOKdotvar)
|
|
{ DotVarExp *dve = (DotVarExp *)ce->e1;
|
|
if (dve->var->isCtorDeclaration())
|
|
{ /* It's a constructor call, currently constructing
|
|
* a temporary __ctmp.
|
|
*/
|
|
/* Before calling the constructor, initialize
|
|
* variable with a bit copy of the default
|
|
* initializer
|
|
*/
|
|
Expression *e = new AssignExp(loc, new VarExp(loc, this), t->defaultInit(loc));
|
|
e->op = TOKblit;
|
|
e->type = t;
|
|
ei->exp = new CommaExp(loc, e, ei->exp);
|
|
|
|
/* Replace __ctmp being constructed with e1
|
|
*/
|
|
dve->e1 = e1;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!ei->exp->implicitConvTo(type))
|
|
{ Type *ti = ei->exp->type->toBasetype();
|
|
// Don't cast away invariant or mutability in initializer
|
|
if (!(ti->ty == Tstruct && t->toDsymbol(sc) == ti->toDsymbol(sc)))
|
|
ei->exp = new CastExp(loc, ei->exp, type);
|
|
}
|
|
}
|
|
ei->exp = new AssignExp(loc, e1, ei->exp);
|
|
ei->exp->op = op;
|
|
canassign++;
|
|
ei->exp = ei->exp->semantic(sc);
|
|
canassign--;
|
|
ei->exp->optimize(WANTvalue);
|
|
}
|
|
else
|
|
{
|
|
init = init->semantic(sc, type);
|
|
}
|
|
}
|
|
else if (storage_class & (STCconst | STCinvariant | STCmanifest) ||
|
|
type->isConst() || type->isInvariant())
|
|
{
|
|
/* Because we may need the results of a const declaration in a
|
|
* subsequent type, such as an array dimension, before semantic2()
|
|
* gets ordinarily run, try to run semantic2() now.
|
|
* Ignore failure.
|
|
*/
|
|
|
|
if (!global.errors && !inferred)
|
|
{
|
|
unsigned errors = global.errors;
|
|
global.gag++;
|
|
//printf("+gag\n");
|
|
Expression *e;
|
|
Initializer *i2 = init;
|
|
inuse++;
|
|
if (ei)
|
|
{
|
|
e = ei->exp->syntaxCopy();
|
|
e = e->semantic(sc);
|
|
e = e->implicitCastTo(sc, type);
|
|
}
|
|
else if (si || ai)
|
|
{ i2 = init->syntaxCopy();
|
|
i2 = i2->semantic(sc, type);
|
|
}
|
|
inuse--;
|
|
global.gag--;
|
|
//printf("-gag\n");
|
|
if (errors != global.errors) // if errors happened
|
|
{
|
|
if (global.gag == 0)
|
|
global.errors = errors; // act as if nothing happened
|
|
|
|
/* Save scope for later use, to try again
|
|
*/
|
|
scope = new Scope(*sc);
|
|
scope->setNoFree();
|
|
}
|
|
else if (ei)
|
|
{
|
|
if (isDataseg())
|
|
/* static const/invariant does CTFE
|
|
*/
|
|
e = e->optimize(WANTvalue | WANTinterpret);
|
|
else
|
|
e = e->optimize(WANTvalue);
|
|
if (e->op == TOKint64 || e->op == TOKstring)
|
|
{
|
|
ei->exp = e; // no errors, keep result
|
|
}
|
|
else
|
|
{
|
|
/* Save scope for later use, to try again
|
|
*/
|
|
scope = new Scope(*sc);
|
|
scope->setNoFree();
|
|
}
|
|
}
|
|
else
|
|
init = i2; // no errors, keep result
|
|
}
|
|
}
|
|
sc = sc->pop();
|
|
}
|
|
}
|
|
|
|
void VarDeclaration::semantic2(Scope *sc)
|
|
{
|
|
//printf("VarDeclaration::semantic2('%s')\n", toChars());
|
|
if (init && !toParent()->isFuncDeclaration())
|
|
{ inuse++;
|
|
#if 0
|
|
ExpInitializer *ei = init->isExpInitializer();
|
|
if (ei)
|
|
{
|
|
ei->exp->dump(0);
|
|
printf("type = %p\n", ei->exp->type);
|
|
}
|
|
#endif
|
|
init = init->semantic(sc, type);
|
|
inuse--;
|
|
}
|
|
}
|
|
|
|
const char *VarDeclaration::kind()
|
|
{
|
|
return "variable";
|
|
}
|
|
|
|
Dsymbol *VarDeclaration::toAlias()
|
|
{
|
|
//printf("VarDeclaration::toAlias('%s', this = %p, aliassym = %p)\n", toChars(), this, aliassym);
|
|
assert(this != aliassym);
|
|
Dsymbol *s = aliassym ? aliassym->toAlias() : this;
|
|
return s;
|
|
}
|
|
|
|
void VarDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
|
|
{
|
|
if (storage_class & STCconst)
|
|
buf->writestring("const ");
|
|
if (storage_class & STCstatic)
|
|
buf->writestring("static ");
|
|
if (storage_class & STCauto)
|
|
buf->writestring("auto ");
|
|
#if DMDV2
|
|
if (storage_class & STCmanifest)
|
|
buf->writestring("manifest ");
|
|
if (storage_class & STCinvariant)
|
|
buf->writestring("invariant ");
|
|
if (storage_class & STCtls)
|
|
buf->writestring("__thread ");
|
|
#endif
|
|
|
|
if (type)
|
|
type->toCBuffer(buf, ident, hgs);
|
|
else
|
|
buf->writestring(ident->toChars());
|
|
if (init)
|
|
{ buf->writestring(" = ");
|
|
ExpInitializer *ie = init->isExpInitializer();
|
|
if (ie && (ie->exp->op == TOKconstruct || ie->exp->op == TOKblit))
|
|
((AssignExp *)ie->exp)->e2->toCBuffer(buf, hgs);
|
|
else
|
|
init->toCBuffer(buf, hgs);
|
|
}
|
|
buf->writeByte(';');
|
|
buf->writenl();
|
|
}
|
|
|
|
int VarDeclaration::needThis()
|
|
{
|
|
//printf("VarDeclaration::needThis(%s, x%x)\n", toChars(), storage_class);
|
|
return storage_class & STCfield;
|
|
}
|
|
|
|
int VarDeclaration::isImportedSymbol()
|
|
{
|
|
if (protection == PROTexport && !init &&
|
|
(storage_class & STCstatic || parent->isModule()))
|
|
return TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
void VarDeclaration::checkCtorConstInit()
|
|
{
|
|
#if 0 /* doesn't work if more than one static ctor */
|
|
if (ctorinit == 0 && isCtorinit() && !(storage_class & STCfield))
|
|
error("missing initializer in static constructor for const variable");
|
|
#endif
|
|
}
|
|
|
|
/************************************
|
|
* Check to see if this variable is actually in an enclosing function
|
|
* rather than the current one.
|
|
*/
|
|
|
|
void VarDeclaration::checkNestedReference(Scope *sc, Loc loc)
|
|
{
|
|
if (parent && !isDataseg() && parent != sc->parent &&
|
|
!(storage_class & STCmanifest))
|
|
{
|
|
// The function that this variable is in
|
|
FuncDeclaration *fdv = toParent()->isFuncDeclaration();
|
|
// The current function
|
|
FuncDeclaration *fdthis = sc->parent->isFuncDeclaration();
|
|
|
|
if (fdv && fdthis && fdv != fdthis)
|
|
{
|
|
if (loc.filename)
|
|
fdthis->getLevel(loc, fdv);
|
|
|
|
for (int i = 0; i < nestedrefs.dim; i++)
|
|
{ FuncDeclaration *f = (FuncDeclaration *)nestedrefs.data[i];
|
|
if (f == fdthis)
|
|
goto L1;
|
|
}
|
|
fdv->nestedVars.insert(this);
|
|
nestedrefs.push(fdthis);
|
|
L1: ;
|
|
|
|
|
|
for (int i = 0; i < fdv->closureVars.dim; i++)
|
|
{ Dsymbol *s = (Dsymbol *)fdv->closureVars.data[i];
|
|
if (s == this)
|
|
goto L2;
|
|
}
|
|
|
|
fdv->closureVars.push(this);
|
|
L2: ;
|
|
|
|
//printf("var %s in function %s is nested ref\n", toChars(), fdv->toChars());
|
|
}
|
|
}
|
|
}
|
|
|
|
/****************************
|
|
* Get ExpInitializer for a variable, if there is one.
|
|
*/
|
|
|
|
ExpInitializer *VarDeclaration::getExpInitializer()
|
|
{
|
|
ExpInitializer *ei;
|
|
|
|
if (init)
|
|
ei = init->isExpInitializer();
|
|
else
|
|
{
|
|
Expression *e = type->defaultInit(loc);
|
|
if (e)
|
|
ei = new ExpInitializer(loc, e);
|
|
else
|
|
ei = NULL;
|
|
}
|
|
return ei;
|
|
}
|
|
|
|
/*******************************************
|
|
* If variable has a constant expression initializer, get it.
|
|
* Otherwise, return NULL.
|
|
*/
|
|
|
|
Expression *VarDeclaration::getConstInitializer()
|
|
{
|
|
if ((isConst() || isInvariant() || storage_class & STCmanifest) &&
|
|
storage_class & STCinit)
|
|
{
|
|
ExpInitializer *ei = getExpInitializer();
|
|
if (ei)
|
|
return ei->exp;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*************************************
|
|
* Return !=0 if we can take the address of this variable.
|
|
*/
|
|
|
|
int VarDeclaration::canTakeAddressOf()
|
|
{
|
|
#if 0
|
|
/* Global variables and struct/class fields of the form:
|
|
* const int x = 3;
|
|
* are not stored and hence cannot have their address taken.
|
|
*/
|
|
if ((isConst() || isInvariant()) &&
|
|
storage_class & STCinit &&
|
|
(!(storage_class & (STCstatic | STCextern)) || (storage_class & STCfield)) &&
|
|
(!parent || toParent()->isModule() || toParent()->isTemplateInstance()) &&
|
|
type->toBasetype()->isTypeBasic()
|
|
)
|
|
{
|
|
return 0;
|
|
}
|
|
#else
|
|
if (storage_class & STCmanifest)
|
|
return 0;
|
|
#endif
|
|
return 1;
|
|
}
|
|
|
|
/*******************************
|
|
* Does symbol go into data segment?
|
|
* Includes extern variables.
|
|
*/
|
|
|
|
int VarDeclaration::isDataseg()
|
|
{
|
|
#if 0
|
|
printf("VarDeclaration::isDataseg(%p, '%s')\n", this, toChars());
|
|
printf("%x, %p, %p\n", storage_class & (STCstatic | STCconst), parent->isModule(), parent->isTemplateInstance());
|
|
printf("parent = '%s'\n", parent->toChars());
|
|
#endif
|
|
if (storage_class & STCmanifest)
|
|
return 0;
|
|
Dsymbol *parent = this->toParent();
|
|
if (!parent && !(storage_class & STCstatic))
|
|
{ error("forward referenced");
|
|
type = Type::terror;
|
|
return 0;
|
|
}
|
|
return canTakeAddressOf() &&
|
|
(storage_class & (STCstatic | STCextern | STCtls) ||
|
|
toParent()->isModule() ||
|
|
toParent()->isTemplateInstance());
|
|
}
|
|
|
|
int VarDeclaration::hasPointers()
|
|
{
|
|
//printf("VarDeclaration::hasPointers() %s, ty = %d\n", toChars(), type->ty);
|
|
return (!isDataseg() && type->hasPointers());
|
|
}
|
|
|
|
/******************************************
|
|
* Return TRUE if variable needs to call the destructor.
|
|
*/
|
|
|
|
int VarDeclaration::needsAutoDtor()
|
|
{
|
|
//printf("VarDeclaration::needsAutoDtor() %s\n", toChars());
|
|
|
|
if (noauto || storage_class & STCnodtor)
|
|
return FALSE;
|
|
|
|
// Destructors for structs and arrays of structs
|
|
Type *tv = type->toBasetype();
|
|
while (tv->ty == Tsarray)
|
|
{ TypeSArray *ta = (TypeSArray *)tv;
|
|
tv = tv->nextOf()->toBasetype();
|
|
}
|
|
if (tv->ty == Tstruct)
|
|
{ TypeStruct *ts = (TypeStruct *)tv;
|
|
StructDeclaration *sd = ts->sym;
|
|
if (sd->dtor)
|
|
return TRUE;
|
|
}
|
|
|
|
// Destructors for classes
|
|
if (storage_class & (STCauto | STCscope))
|
|
{
|
|
if (type->isClassHandle())
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/******************************************
|
|
* If a variable has an auto destructor call, return call for it.
|
|
* Otherwise, return NULL.
|
|
*/
|
|
|
|
Expression *VarDeclaration::callAutoDtor(Scope *sc)
|
|
{ Expression *e = NULL;
|
|
|
|
//printf("VarDeclaration::callAutoDtor() %s\n", toChars());
|
|
|
|
if (noauto || storage_class & STCnodtor)
|
|
return NULL;
|
|
|
|
// Destructors for structs and arrays of structs
|
|
bool array = false;
|
|
Type *tv = type->toBasetype();
|
|
while (tv->ty == Tsarray)
|
|
{ TypeSArray *ta = (TypeSArray *)tv;
|
|
array = true;
|
|
tv = tv->nextOf()->toBasetype();
|
|
}
|
|
if (tv->ty == Tstruct)
|
|
{ TypeStruct *ts = (TypeStruct *)tv;
|
|
StructDeclaration *sd = ts->sym;
|
|
if (sd->dtor)
|
|
{
|
|
if (array)
|
|
{
|
|
// Typeinfo.destroy(cast(void*)&v);
|
|
Expression *ea = new SymOffExp(loc, this, 0, 0);
|
|
ea = new CastExp(loc, ea, Type::tvoid->pointerTo());
|
|
Expressions *args = new Expressions();
|
|
args->push(ea);
|
|
|
|
Expression *et = type->getTypeInfo(sc);
|
|
et = new DotIdExp(loc, et, Id::destroy);
|
|
|
|
e = new CallExp(loc, et, args);
|
|
}
|
|
else
|
|
{
|
|
e = new VarExp(loc, this);
|
|
e = new DotVarExp(loc, e, sd->dtor, 0);
|
|
e = new CallExp(loc, e);
|
|
}
|
|
return e;
|
|
}
|
|
}
|
|
|
|
// Destructors for classes
|
|
if (storage_class & (STCauto | STCscope))
|
|
{
|
|
for (ClassDeclaration *cd = type->isClassHandle();
|
|
cd;
|
|
cd = cd->baseClass)
|
|
{
|
|
/* We can do better if there's a way with onstack
|
|
* classes to determine if there's no way the monitor
|
|
* could be set.
|
|
*/
|
|
//if (cd->isInterfaceDeclaration())
|
|
//error("interface %s cannot be scope", cd->toChars());
|
|
if (1 || onstack || cd->dtors.dim) // if any destructors
|
|
{
|
|
// delete this;
|
|
Expression *ec;
|
|
|
|
ec = new VarExp(loc, this);
|
|
e = new DeleteExp(loc, ec);
|
|
e->type = Type::tvoid;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return e;
|
|
}
|
|
|
|
|
|
/********************************* ClassInfoDeclaration ****************************/
|
|
|
|
ClassInfoDeclaration::ClassInfoDeclaration(ClassDeclaration *cd)
|
|
: VarDeclaration(0, ClassDeclaration::classinfo->type, cd->ident, NULL)
|
|
{
|
|
this->cd = cd;
|
|
storage_class = STCstatic;
|
|
}
|
|
|
|
Dsymbol *ClassInfoDeclaration::syntaxCopy(Dsymbol *s)
|
|
{
|
|
assert(0); // should never be produced by syntax
|
|
return NULL;
|
|
}
|
|
|
|
void ClassInfoDeclaration::semantic(Scope *sc)
|
|
{
|
|
}
|
|
|
|
/********************************* ModuleInfoDeclaration ****************************/
|
|
|
|
ModuleInfoDeclaration::ModuleInfoDeclaration(Module *mod)
|
|
: VarDeclaration(0, Module::moduleinfo->type, mod->ident, NULL)
|
|
{
|
|
this->mod = mod;
|
|
storage_class = STCstatic;
|
|
}
|
|
|
|
Dsymbol *ModuleInfoDeclaration::syntaxCopy(Dsymbol *s)
|
|
{
|
|
assert(0); // should never be produced by syntax
|
|
return NULL;
|
|
}
|
|
|
|
void ModuleInfoDeclaration::semantic(Scope *sc)
|
|
{
|
|
}
|
|
|
|
/********************************* TypeInfoDeclaration ****************************/
|
|
|
|
TypeInfoDeclaration::TypeInfoDeclaration(Type *tinfo, int internal)
|
|
: VarDeclaration(0, Type::typeinfo->type, tinfo->getTypeInfoIdent(internal), NULL)
|
|
{
|
|
this->tinfo = tinfo;
|
|
storage_class = STCstatic;
|
|
protection = PROTpublic;
|
|
linkage = LINKc;
|
|
}
|
|
|
|
Dsymbol *TypeInfoDeclaration::syntaxCopy(Dsymbol *s)
|
|
{
|
|
assert(0); // should never be produced by syntax
|
|
return NULL;
|
|
}
|
|
|
|
void TypeInfoDeclaration::semantic(Scope *sc)
|
|
{
|
|
assert(linkage == LINKc);
|
|
}
|
|
|
|
/***************************** TypeInfoConstDeclaration **********************/
|
|
|
|
#if DMDV2
|
|
TypeInfoConstDeclaration::TypeInfoConstDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/***************************** TypeInfoInvariantDeclaration **********************/
|
|
|
|
#if DMDV2
|
|
TypeInfoInvariantDeclaration::TypeInfoInvariantDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/***************************** TypeInfoStructDeclaration **********************/
|
|
|
|
TypeInfoStructDeclaration::TypeInfoStructDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
|
|
/***************************** TypeInfoClassDeclaration ***********************/
|
|
|
|
TypeInfoClassDeclaration::TypeInfoClassDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
|
|
/***************************** TypeInfoInterfaceDeclaration *******************/
|
|
|
|
TypeInfoInterfaceDeclaration::TypeInfoInterfaceDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
|
|
/***************************** TypeInfoTypedefDeclaration *********************/
|
|
|
|
TypeInfoTypedefDeclaration::TypeInfoTypedefDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
|
|
/***************************** TypeInfoPointerDeclaration *********************/
|
|
|
|
TypeInfoPointerDeclaration::TypeInfoPointerDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
|
|
/***************************** TypeInfoArrayDeclaration ***********************/
|
|
|
|
TypeInfoArrayDeclaration::TypeInfoArrayDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
|
|
/***************************** TypeInfoStaticArrayDeclaration *****************/
|
|
|
|
TypeInfoStaticArrayDeclaration::TypeInfoStaticArrayDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
|
|
/***************************** TypeInfoAssociativeArrayDeclaration ************/
|
|
|
|
TypeInfoAssociativeArrayDeclaration::TypeInfoAssociativeArrayDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
|
|
/***************************** TypeInfoEnumDeclaration ***********************/
|
|
|
|
TypeInfoEnumDeclaration::TypeInfoEnumDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
|
|
/***************************** TypeInfoFunctionDeclaration ********************/
|
|
|
|
TypeInfoFunctionDeclaration::TypeInfoFunctionDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
|
|
/***************************** TypeInfoDelegateDeclaration ********************/
|
|
|
|
TypeInfoDelegateDeclaration::TypeInfoDelegateDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
|
|
/***************************** TypeInfoTupleDeclaration **********************/
|
|
|
|
TypeInfoTupleDeclaration::TypeInfoTupleDeclaration(Type *tinfo)
|
|
: TypeInfoDeclaration(tinfo, 0)
|
|
{
|
|
}
|
|
|
|
/********************************* ThisDeclaration ****************************/
|
|
|
|
// For the "this" parameter to member functions
|
|
|
|
ThisDeclaration::ThisDeclaration(Type *t)
|
|
: VarDeclaration(0, t, Id::This, NULL)
|
|
{
|
|
noauto = 1;
|
|
}
|
|
|
|
Dsymbol *ThisDeclaration::syntaxCopy(Dsymbol *s)
|
|
{
|
|
assert(0); // should never be produced by syntax
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/********************** StaticStructInitDeclaration ***************************/
|
|
|
|
StaticStructInitDeclaration::StaticStructInitDeclaration(Loc loc, StructDeclaration *dsym)
|
|
: Declaration(new Identifier("", TOKidentifier))
|
|
{
|
|
this->loc = loc;
|
|
this->dsym = dsym;
|
|
storage_class |= STCconst;
|
|
}
|