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cxxfrontend.cc
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/**
* Test the C++ compiler interface of the
* $(LINK2 https://www.dlang.org, D programming language).
*
* Copyright: Copyright (C) 2017-2023 by The D Language Foundation, All Rights Reserved
* Authors: Iain Buclaw
* License: $(LINK2 https://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)
* Source: $(LINK2 https://github.com/dlang/dmd/blob/master/src/tests/cxxfrontend.c, _cxxfrontend.c)
*/
#include "root/array.h"
#include "root/bitarray.h"
#include "root/complex_t.h"
#include "root/ctfloat.h"
#include "root/dcompat.h"
#include "root/dsystem.h"
#include "root/filename.h"
#include "root/longdouble.h"
#include "root/optional.h"
#include "common/outbuffer.h"
#include "root/port.h"
#include "root/rmem.h"
#include "rootobject.h"
#include "aggregate.h"
#include "aliasthis.h"
#include "argtypes.h"
#include "arraytypes.h"
#include "ast_node.h"
#include "attrib.h"
#include "compiler.h"
#include "cond.h"
#include "ctfe.h"
#include "declaration.h"
#include "doc.h"
#include "dsymbol.h"
#include "enum.h"
#include "errors.h"
#include "expression.h"
#include "globals.h"
#include "hdrgen.h"
#include "identifier.h"
#include "id.h"
#include "import.h"
#include "init.h"
#include "json.h"
#include "mangle.h"
#include "module.h"
#include "mtype.h"
#include "nspace.h"
#include "objc.h"
#include "scope.h"
#include "statement.h"
#include "staticassert.h"
#include "target.h"
#include "template.h"
#include "tokens.h"
#include "typinf.h"
#include "version.h"
#include "visitor.h"
/**********************************/
extern "C" int rt_init();
extern "C" void gc_disable();
static void frontend_init()
{
rt_init();
gc_disable();
global._init();
global.compileEnv.vendor = "Front-End Tester";
global.params.objname = NULL;
target.os = Target::OS_linux;
target.isX86_64 = true;
target.cpu = CPU::native;
target._init(global.params);
Type::_init();
Id::initialize();
Module::_init();
Expression::_init();
Objc::_init();
CTFloat::initialize();
}
/**********************************/
extern "C" int rt_term();
extern "C" void gc_enable();
static void frontend_term()
{
gc_enable();
rt_term();
}
/**********************************/
void test_tokens()
{
// First valid TOK value
assert((unsigned)TOK::leftParenthesis == 1);
assert(strcmp(Token::toChars(TOK::leftParenthesis), "(") == 0);
// Last valid TOK value
assert((unsigned)TOK::attribute__ == (unsigned)TOK::MAX - 1);
assert(strcmp(Token::toChars(TOK::attribute__), "__attribute__") == 0);
}
void test_compiler_globals()
{
// only check constant prefix of version
assert(strncmp(global.versionChars(), "v2.", 3) == 0);
unsigned versionNumber = global.versionNumber();
assert(versionNumber >= 2060 && versionNumber <= 3000);
assert(strcmp(target.architectureName.ptr, "X86_64") == 0 ||
strcmp(target.architectureName.ptr, "X86") == 0);
}
/**********************************/
class TestVisitor : public Visitor
{
using Visitor::visit;
public:
bool expr;
bool package;
bool stmt;
bool type;
bool aggr;
bool attrib;
bool decl;
bool typeinfo;
bool idexpr;
bool function;
TestVisitor() : expr(false), package(false), stmt(false), type(false),
aggr(false), attrib(false), decl(false), typeinfo(false), idexpr(false),
function(false)
{
}
void visit(Expression *) override
{
expr = true;
}
void visit(IdentifierExp *) override
{
idexpr = true;
}
void visit(Package *) override
{
package = true;
}
void visit(Statement *) override
{
stmt = true;
}
void visit(AttribDeclaration *) override
{
attrib = true;
}
void visit(Declaration *) override
{
decl = true;
}
void visit(AggregateDeclaration *) override
{
aggr = true;
}
void visit(TypeNext *) override
{
type = true;
}
void visit(TypeInfoDeclaration *) override
{
typeinfo = true;
}
void visit(FuncDeclaration *) override
{
function = true;
}
};
void test_visitors()
{
TestVisitor tv;
Loc loc;
Identifier *ident = Identifier::idPool("test");
IntegerExp *ie = IntegerExp::create(loc, 42, Type::tint32);
ie->accept(&tv);
assert(tv.expr == true);
IdentifierExp *id = IdentifierExp::create (loc, ident);
id->accept(&tv);
assert(tv.idexpr == true);
Module *mod = Module::create("test", ident, 0, 0);
assert(mod->isModule() == mod);
mod->accept(&tv);
assert(tv.package == true);
ExpStatement *es = ExpStatement::create(loc, ie);
assert(es->isExpStatement() == es);
es->accept(&tv);
assert(tv.stmt == true);
TypePointer *tp = TypePointer::create(Type::tvoid);
assert(dmd::hasPointers(tp) == true);
tp->accept(&tv);
assert(tv.type == true);
LinkDeclaration *ld = LinkDeclaration::create(loc, LINK::d, NULL);
assert(ld->isAttribDeclaration() == static_cast<AttribDeclaration *>(ld));
assert(ld->linkage == LINK::d);
ld->accept(&tv);
assert(tv.attrib == true);
ClassDeclaration *cd = ClassDeclaration::create(loc, Identifier::idPool("TypeInfo"), NULL, NULL, true);
assert(cd->isClassDeclaration() == cd);
assert(cd->vtblOffset() == 1);
cd->accept(&tv);
assert(tv.aggr == true);
AliasDeclaration *ad = AliasDeclaration::create(loc, ident, tp);
assert(ad->isAliasDeclaration() == ad);
ad->storage_class = STCabstract;
assert(ad->isAbstract() == true);
ad->accept(&tv);
assert(tv.decl == true);
cd = ClassDeclaration::create(loc, Identifier::idPool("TypeInfo_Pointer"), NULL, NULL, true);
TypeInfoPointerDeclaration *ti = TypeInfoPointerDeclaration::create(tp);
assert(ti->isTypeInfoDeclaration() == ti);
assert(ti->tinfo == tp);
ti->accept(&tv);
assert(tv.typeinfo == true);
Parameters *args = new Parameters;
TypeFunction *tf = TypeFunction::create(args, Type::tvoid, VARARGnone, LINK::c);
FuncDeclaration *fd = FuncDeclaration::create(Loc (), Loc (), Identifier::idPool("test"),
STCextern, tf);
assert(fd->isFuncDeclaration() == fd);
assert(fd->type == tf);
fd->accept(&tv);
assert(tv.function == true);
}
/**********************************/
void test_semantic()
{
/* Mini object.d source. Module::parse will add internal members also. */
const char *buf =
"module object;\n"
"class Object { }\n"
"class Throwable { }\n"
"class Error : Throwable { this(immutable(char)[]); }";
DArray<unsigned char> src = DArray<unsigned char>(strlen(buf), (unsigned char *)mem.xstrdup(buf));
Module *m = Module::create("object.d", Identifier::idPool("object"), 0, 0);
unsigned errors = global.startGagging();
m->src = src;
m->parse();
m->importedFrom = m;
dmd::importAll(m, NULL);
dmd::dsymbolSemantic(m, NULL);
dmd::semantic2(m, NULL);
dmd::semantic3(m, NULL);
Dsymbol *s = dmd::search(m, Loc(), Identifier::idPool("Error"));
assert(s);
AggregateDeclaration *ad = s->isAggregateDeclaration();
assert(ad && ad->ctor && ad->sizeok == Sizeok::done);
CtorDeclaration *ctor = ad->ctor->isCtorDeclaration();
assert(ctor->isMember() && !ctor->isNested());
assert(0 == strcmp(ctor->type->toChars(), "Error(string)"));
ClassDeclaration *cd = ad->isClassDeclaration();
assert(cd && cd->hasMonitor());
assert(!global.endGagging(errors));
}
/**********************************/
void test_skip_importall()
{
/* Similar to test_semantic(), but importAll step is skipped. */
const char *buf =
"module rootobject;\n"
"import object;\n"
"class RootObject : Object { }";
DArray<unsigned char> src = DArray<unsigned char>(strlen(buf), (unsigned char *)mem.xstrdup(buf));
Module *m = Module::create("rootobject.d", Identifier::idPool("rootobject"), 0, 0);
unsigned errors = global.startGagging();
m->src = src;
m->parse();
m->importedFrom = m;
dmd::dsymbolSemantic(m, NULL);
dmd::semantic2(m, NULL);
dmd::semantic3(m, NULL);
assert(!global.endGagging(errors));
}
/**********************************/
void test_expression()
{
Loc loc;
IntegerExp *ie = IntegerExp::create(loc, 42, Type::tint32);
Expression *e = dmd::ctfeInterpret(ie);
assert(e);
assert(e->isConst());
Optional<bool> res = e->toBool();
assert(res.get());
}
/**********************************/
void test_target()
{
assert(target.isVectorOpSupported(Type::tint32, EXP::pow));
}
/**********************************/
void test_parameters()
{
Parameters *args = new Parameters;
args->push(Parameter::create(Loc(), STCundefined, Type::tint32, NULL, NULL, NULL));
args->push(Parameter::create(Loc(), STCundefined, Type::tint64, NULL, NULL, NULL));
TypeFunction *tf = TypeFunction::create(args, Type::tvoid, VARARGnone, LINK::c);
assert(tf->parameterList.length() == 2);
assert(tf->parameterList[0]->type == Type::tint32);
assert(tf->parameterList[1]->type == Type::tint64);
assert(!tf->isDstyleVariadic());
}
/**********************************/
void test_types()
{
Parameters *args = new Parameters;
StorageClass stc = STCnothrow|STCproperty|STCreturn|STCreturninferred|STCtrusted;
TypeFunction *tfunction = TypeFunction::create(args, Type::tvoid, VARARGnone, LINK::d, stc);
assert(tfunction->isNothrow());
assert(!tfunction->isNogc());
assert(tfunction->isProperty());
assert(!tfunction->isRef());
tfunction->isRef(true);
assert(tfunction->isRef());
assert(tfunction->isReturn());
assert(!tfunction->isScopeQual());
assert(tfunction->isReturnInferred());
assert(!tfunction->isScopeInferred());
assert(tfunction->linkage == LINK::d);
assert(tfunction->trust == TRUST::trusted);
assert(tfunction->purity == PURE::impure);
}
/**********************************/
void test_location()
{
Loc loc = Loc::singleFilename("app.d");
assert(strcmp(loc.toChars(true, MessageStyle::digitalmars), "app.d") == 0);
assert(strcmp(loc.toChars(true, MessageStyle::gnu), "app.d") == 0);
}
/**********************************/
void test_array()
{
Array<double> array;
array.setDim(4);
array.shift(10);
array.push(20);
array[2] = 15;
assert(array[0] == 10);
assert(array.find(10) == 0);
assert(array.find(20) == 5);
assert(!array.contains(99));
array.remove(1);
assert(array.length == 5);
assert(array[1] == 15);
assert(array.pop() == 20);
assert(array.length == 4);
array.insert(1, 30);
assert(array[1] == 30);
assert(array[2] == 15);
Array<int> arrayA;
array.setDim(0);
int buf[3] = {10, 15, 20};
arrayA.push(buf[0]);
arrayA.push(buf[1]);
arrayA.push(buf[2]);
assert(memcmp(arrayA.tdata(), buf, sizeof(buf)) == 0);
Array<int> *arrayPtr = arrayA.copy();
assert(arrayPtr);
assert(memcmp(arrayPtr->tdata(), arrayA.tdata(), arrayA.length * sizeof(int)) == 0);
assert(arrayPtr->tdata() != arrayA.tdata());
arrayPtr->setDim(0);
int buf2[2] = {100, 200};
arrayPtr->push(buf2[0]);
arrayPtr->push(buf2[1]);
arrayA.append(arrayPtr);
assert(memcmp(arrayA.tdata() + 3, buf2, sizeof(buf2)) == 0);
arrayA.insert(0, arrayPtr);
assert(arrayA[0] == 100);
assert(arrayA[1] == 200);
assert(arrayA[2] == 10);
assert(arrayA[3] == 15);
assert(arrayA[4] == 20);
assert(arrayA[5] == 100);
assert(arrayA[6] == 200);
arrayA.zero();
for (size_t i = 0; i < arrayA.length; i++)
assert(arrayA[i] == 0);
Array<IntegerExp *> arrayInts;
arrayInts.push(IntegerExp::create(Loc(), 10, Type::tint32));
arrayInts.shift(IntegerExp::create(Loc(), 200, Type::tint32));
arrayInts.push(IntegerExp::create(Loc(), 15, Type::tint32));
arrayInts.shift(IntegerExp::create(Loc(), 100, Type::tint32));
arrayInts.push(IntegerExp::create(Loc(), 20, Type::tint32));
assert(strcmp(arrayInts.toChars(), "[100,200,10,15,20]") == 0);
}
void test_outbuffer()
{
OutBuffer buf;
dmd::mangleToBuffer(Type::tint64, buf);
assert(strcmp(buf.peekChars(), "l") == 0);
buf.reset();
buf.reserve(16);
buf.writestring("hello");
buf.writeByte('!');
buf.write(&buf);
buf.writenl();
assert(buf.length() == 13);
const char *data = buf.extractChars();
assert(buf.length() == 0);
assert(strcmp(data, "hello!hello!\n") == 0);
}
void test_cppmangle()
{
// Based off runnable_cxx/cppa.d.
const char *buf =
"module cppa;\n"
"extern (C++):\n"
"class Base { void based() { } }\n"
"interface Interface { int MethodCPP(); int MethodD(); }\n"
"class Derived : Base, Interface { int MethodCPP(); int MethodD() { return 3; } }";
DArray<unsigned char> src = DArray<unsigned char>(strlen(buf), (unsigned char *)mem.xstrdup(buf));
Module *m = Module::create("cppa.d", Identifier::idPool("cppa"), 0, 0);
unsigned errors = global.startGagging();
FuncDeclaration *fd;
const char *mangle;
m->src = src;
m->parse();
m->importedFrom = m;
dmd::importAll(m, NULL);
dmd::dsymbolSemantic(m, NULL);
dmd::semantic2(m, NULL);
dmd::semantic3(m, NULL);
Dsymbol *s = dmd::search(m, Loc(), Identifier::idPool("Derived"));
assert(s);
ClassDeclaration *cd = s->isClassDeclaration();
assert(cd && cd->sizeok == Sizeok::done);
assert(cd->members && cd->members->length == 2);
assert(cd->vtblInterfaces && cd->vtblInterfaces->length == 1);
BaseClass *b = (*cd->vtblInterfaces)[0];
fd = (*cd->members)[0]->isFuncDeclaration();
assert(fd);
mangle = dmd::cppThunkMangleItanium(fd, b->offset);
assert(strcmp(mangle, "_ZThn8_N7Derived9MethodCPPEv") == 0);
fd = (*cd->members)[1]->isFuncDeclaration();
assert(fd);
mangle = dmd::cppThunkMangleItanium(fd, b->offset);
assert(strcmp(mangle, "_ZThn8_N7Derived7MethodDEv") == 0);
assert(!global.endGagging(errors));
}
void test_module()
{
unsigned errors = global.startGagging();
Module *mod = Module::load(Loc(), NULL, Identifier::idPool("doesnotexist.d"));
assert(mod == NULL);
assert(global.endGagging(errors));
}
void test_optional()
{
Optional<bool> opt = Optional<bool>::create(true);
assert(!opt.isEmpty());
assert(opt.isPresent());
assert(opt.get() == true);
assert(opt.hasValue(true));
}
void test_filename()
{
const char *fname = "/a/nice/long/path/to/somefile.d";
const char *basename = FileName::name(fname);
assert(strcmp(basename, "somefile.d") == 0);
const char *name = FileName::removeExt(basename);
assert(strcmp(name, "somefile") == 0);
const char *jsonname = FileName::defaultExt(name, json_ext.ptr);
assert(strcmp(jsonname, "somefile.json") == 0);
FileName file = FileName::create("somefile.d");
assert(FileName::equals(basename, file.toChars()));
FileName::free(name);
FileName::free(jsonname);
}
/**********************************/
class MiniGlueVisitor : public Visitor
{
using Visitor::visit;
FuncDeclaration *func;
public:
MiniGlueVisitor(FuncDeclaration *func)
: func(func)
{
}
void visit(Type *) override { assert(0); }
void visit(TypeError *t) override { (void)t->ctype; }
void visit(TypeNull *t) override { (void)t->ctype; }
void visit(TypeNoreturn *t) override { (void)t->ctype; }
void visit(TypeBasic *t) override
{
switch (t->ty)
{
case TY::Tvoid:
case TY::Tbool:
case TY::Tint8:
case TY::Tuns8:
case TY::Tint16:
case TY::Tuns16:
case TY::Tint32:
case TY::Tuns32:
case TY::Tint64:
case TY::Tuns64:
case TY::Tint128:
case TY::Tuns128:
case TY::Tfloat32:
case TY::Tfloat64:
case TY::Tfloat80:
case TY::Timaginary32:
case TY::Timaginary64:
case TY::Timaginary80:
case TY::Tcomplex32:
case TY::Tcomplex64:
case TY::Tcomplex80:
case TY::Tchar:
case TY::Twchar:
case TY::Tdchar:
(void)t->ctype; break;
default:
assert(0);
}
(void)t->toChars();
}
void visit(TypePointer *t) override
{
t->next->accept(this);
(void)t->ctype;
}
void visit(TypeDArray *t) override
{
t->next->accept(this);
Type::tsize_t->accept(this);
(void)t->ctype;
(void)t->toChars();
}
void visit(TypeSArray *t) override
{
if (t->dim->isConst() && t->dim->type->isIntegral())
{
(void)t->dim->toUInteger();
t->next->accept(this);
(void)t->ctype;
}
else
assert(0);
}
void visit(TypeVector *t) override
{
(void)t->basetype->isTypeSArray()->dim->toUInteger();
t->elementType()->accept(this);
if (t->ty == TY::Tvoid)
Type::tuns8->accept(this);
(void)t->ctype;
(void)t->toChars();
}
void visit(TypeAArray *t) override
{
(void)t->ctype;
(void)t->toChars();
}
void visit(TypeFunction *t) override
{
if (t->isDstyleVariadic())
Type::typeinfotypelist->type->accept(this);
for (size_t i = 0; i < t->parameterList.length(); i++)
{
Parameter *arg = t->parameterList[i];
(void)arg->storageClass;
arg->type->accept(this);
}
if (t->parameterList.varargs != VARARGvariadic)
Type::tvoid->accept(this);
if (t->next != NULL)
{
t->next->accept(this);
(void)t->isRef();
}
(void)t->ctype;
switch (t->linkage)
{
case LINK::windows:
case LINK::c:
case LINK::cpp:
case LINK::d:
case LINK::objc:
break;
default:
assert(0);
}
}
void visit(TypeDelegate *t) override
{
t->next->accept(this);
Type::tvoidptr->accept(this);
(void)t->ctype;
(void)t->toChars();
}
void visitUserAttributes(Dsymbol *sym)
{
if (!sym->userAttribDecl())
return;
Expressions *attrs = dmd::getAttributes(sym->userAttribDecl());
if (attrs)
{
dmd::expandTuples(attrs);
for (size_t i = 0; i < attrs->length; i++)
{
Expression *attr = (*attrs)[i];
Dsymbol *sym = dmd::toDsymbol(attr->type, 0);
if (!sym)
{
if (TemplateExp *te = attr->isTemplateExp())
{
if (!te->td || !te->td->onemember)
continue;
sym = te->td->onemember;
}
else
continue;
}
sym->getModule()->accept(this);
if (attr->op == EXP::call)
attr = dmd::ctfeInterpret(attr);
if (attr->op != EXP::structLiteral)
continue;
}
}
}
void visit(TypeEnum *t) override
{
if (t->sym->memtype)
t->sym->memtype->accept(this);
if (t->sym->isSpecial())
{
(void)t->toChars();
(void)t->ctype;
t->sym->accept(this);
}
else if (t->sym->ident == NULL)
{
(void)t->ctype;
}
else
{
(void)t->ctype;
dmd::size(t, t->sym->loc);
if (t->sym->members)
{
for (size_t i = 0; i < t->sym->members->length; i++)
{
EnumMember *member = (*t->sym->members)[i]->isEnumMember();
if (member == NULL)
continue;
(void)member->ident->toChars();
(void)member->value()->toInteger();
}
}
}
visitUserAttributes(t->sym);
}
void visit(TypeStruct *t) override
{
t->sym->accept(this);
(void)t->sym->isUnionDeclaration();
(void)t->ctype;
if (t->sym->members)
{
(void)t->sym->structsize;
(void)t->sym->alignment.isDefault();
(void)t->sym->alignsize;
(void)t->sym->alignment.get();
(void)t->sym->isPOD();
for (size_t i = 0; i < t->sym->members->length; i++)
{
Dsymbol *sym = (*t->sym->members)[i];
if (VarDeclaration *var = sym->isVarDeclaration())
{
(void)var->csym;
(void)var->aliasTuple;
(void)var->isField();
(void)var->ident->toChars();
continue;
}
if (AnonDeclaration *ad = sym->isAnonDeclaration())
{
(void)ad->isunion;
(void)ad->loc;
(void)ad->decl;
(void)ad->anonoffset;
(void)ad->anonstructsize;
(void)ad->anonalignsize;
continue;
}
if (AttribDeclaration *attrib = sym->isAttribDeclaration())
{
dmd::include(attrib, NULL);
continue;
}
if (sym->isTemplateMixin() || sym->isNspace())
{
if (ScopeDsymbol *scopesym = sym->isScopeDsymbol())
{
(void)scopesym->members;
continue;
}
}
}
}
visitUserAttributes(t->sym);
}
void visit(TypeClass *t) override
{
t->sym->accept(this);
(void)t->ctype;
if (ClassDeclaration *cd = t->sym->isClassDeclaration())
{
(void)cd->baseClass;
cd->type->accept(this);
if (InterfaceDeclaration *id = cd->isInterfaceDeclaration())
(void)id->vtblInterfaces->length;
(void)cd->hasMonitor();
if (cd->vtblInterfaces)
{
for (size_t i = 0; i < cd->vtblInterfaces->length; i++)
{
BaseClass *bc = (*cd->vtblInterfaces)[i];
(void)bc->offset;
}
}
}
if (t->sym->members)
{
(void)t->sym->structsize;
(void)t->sym->alignsize;
for (size_t i = 0; i < t->sym->members->length; i++)
{
Dsymbol *sym = (*t->sym->members)[i];
if (VarDeclaration *var = sym->isVarDeclaration())
{
(void)var->csym;
(void)var->aliasTuple;
(void)var->isField();
(void)var->ident->toChars();
continue;
}
if (AnonDeclaration *ad = sym->isAnonDeclaration())
{
(void)ad->isunion;
(void)ad->loc;
(void)ad->decl;
(void)ad->anonoffset;
(void)ad->anonstructsize;
(void)ad->anonalignsize;
continue;
}
if (AttribDeclaration *attrib = sym->isAttribDeclaration())
{
dmd::include(attrib, NULL);
continue;
}
if (sym->isTemplateMixin() || sym->isNspace())
{
if (ScopeDsymbol *scopesym = sym->isScopeDsymbol())
{
(void)scopesym->members;
continue;
}
}
}
}
(void)t->sym->storage_class;
t->sym->type->accept(this);
for (size_t i = 0; i < t->sym->vtbl.length; i++)
t->sym->vtbl[i]->isFuncDeclaration()->accept(this);
for (size_t i = 0; i < t->sym->baseclasses->length; i++)
{
BaseClass *bc = (*t->sym->baseclasses)[i];
bc->sym->accept(this);
}
visitUserAttributes(t->sym);
}
void visit(Statement *) override { assert(0); }
void visit(ScopeGuardStatement *) override { }
void visit(IfStatement *s) override
{
s->condition->accept(this);
s->condition->type->accept(this);
if (s->ifbody)
s->ifbody->accept(this);
if (s->elsebody)
s->elsebody->accept(this);
}
void visit(PragmaStatement *) override { }
void visit(WhileStatement *) override { assert(0); }
void visit(DoStatement *s) override
{
s->getRelatedLabeled()->accept(this);
if (s->_body)
s->_body->accept(this);
s->condition->accept(this);
s->condition->type->accept(this);
}
void visit(ForStatement *s) override
{
s->getRelatedLabeled()->accept(this);
if (s->_init)
s->_init->accept(this);
if (s->condition)
{
s->condition->accept(this);
s->condition->type->accept(this);
}
if (s->_body)
s->_body->accept(this);
if (s->increment)
s->increment->accept(this);
}
void visit(ForeachStatement *) override { assert(0); }
void visit(ForeachRangeStatement *) override { assert(0); }
void visit(BreakStatement *s) override
{
if (s->ident)
{
LabelDsymbol *sym = func->searchLabel(s->ident, s->loc);
LabelStatement *label = sym->statement;
label->statement->getRelatedLabeled()->accept(this);
}
}
void visit(ContinueStatement *s) override
{
if (s->ident)
{
LabelDsymbol *sym = func->searchLabel(s->ident, s->loc);
LabelStatement *label = sym->statement;
label->statement->accept(this);
}
}
void visit(GotoStatement *s) override
{
assert(s->label->statement != NULL);
assert(s->tf == s->label->statement->tf);
(void)s->label->ident;
}
void visit(LabelStatement *s) override
{
LabelDsymbol *sym;
if (func->returnLabel && func->returnLabel->ident == s->ident)
sym = func->returnLabel;
else
sym = func->searchLabel(s->ident, s->loc);
sym->statement->accept(this);
if (sym == func->returnLabel && func->fensure() != NULL)
func->fensure()->accept(this);
else if (s->statement)
s->statement->accept(this);
}
void visit(SwitchStatement *s) override
{
s->getRelatedLabeled()->accept(this);
s->condition->accept(this);
Type *condtype = s->condition->type->toBasetype();
if (!condtype->isScalar())
assert(0);
if (s->cases)
{
for (size_t i = 0; i < s->cases->length; i++)
{
CaseStatement *cs = (*s->cases)[i];
if (s->hasVars)
cs->exp->accept(this);
}
s->sdefault->accept(this);
}
if (s->_body)
s->_body->accept(this);
}
void visit(CaseStatement *s) override
{
s->getRelatedLabeled()->accept(this);
if (s->exp->type->isScalar())
s->exp->accept(this);
else
(void)s->index;
if (s->statement)
s->statement->accept(this);
}
void visit(DefaultStatement *s) override
{
s->getRelatedLabeled()->accept(this);
if (s->statement)
s->statement->accept(this);
}
void visit(GotoDefaultStatement *s) override
{
s->sw->sdefault->accept(this);
}
void visit(GotoCaseStatement *s) override
{
s->cs->accept(this);
}
void visit(SwitchErrorStatement *s) override
{
s->exp->accept(this);
}
void visit(ReturnStatement *s) override
{
if (s->exp == NULL || s->exp->type->toBasetype()->ty == TY::Tvoid)
return;