Commit 354b9712 authored by Roberto Raggi's avatar Roberto Raggi

Merged ScopedSymbol and Scope.

parent 5accc966
......@@ -76,13 +76,13 @@ public:
}
protected:
bool process(ScopedSymbol *symbol)
bool process(Scope *symbol)
{
if (! _scope) {
Scope *scope = symbol->members();
Scope *scope = symbol;
for (unsigned i = 0; i < scope->symbolCount(); ++i) {
accept(scope->symbolAt(i));
for (unsigned i = 0; i < scope->memberCount(); ++i) {
accept(scope->memberAt(i));
if (_scope)
return false;
......@@ -388,14 +388,6 @@ Symbol *Document::globalSymbolAt(unsigned index) const
return _globalNamespace->memberAt(index);
}
Scope *Document::globalSymbols() const
{
if (! _globalNamespace)
return 0;
return _globalNamespace->members();
}
Namespace *Document::globalNamespace() const
{
return _globalNamespace;
......@@ -411,20 +403,20 @@ Scope *Document::scopeAt(unsigned line, unsigned column)
FindScopeAt findScopeAt(_translationUnit, line, column);
if (Scope *scope = findScopeAt(_globalNamespace))
return scope;
return globalSymbols();
return globalNamespace();
}
Symbol *Document::lastVisibleSymbolAt(unsigned line, unsigned column) const
{
return lastVisibleSymbolAt(line, column, globalSymbols());
return lastVisibleSymbolAt(line, column, globalNamespace());
}
Symbol *Document::lastVisibleSymbolAt(unsigned line, unsigned column, Scope *scope) const
{
Symbol *previousSymbol = 0;
for (unsigned i = 0; i < scope->symbolCount(); ++i) {
Symbol *symbol = scope->symbolAt(i);
for (unsigned i = 0; i < scope->memberCount(); ++i) {
Symbol *symbol = scope->memberAt(i);
if (symbol->line() > line)
break;
......@@ -432,8 +424,8 @@ Symbol *Document::lastVisibleSymbolAt(unsigned line, unsigned column, Scope *sco
}
if (previousSymbol) {
if (ScopedSymbol *scoped = previousSymbol->asScopedSymbol()) {
if (Symbol *member = lastVisibleSymbolAt(line, column, scoped->members()))
if (Scope *scope = previousSymbol->asScope()) {
if (Symbol *member = lastVisibleSymbolAt(line, column, scope))
return member;
}
}
......@@ -558,7 +550,7 @@ void Document::check(CheckMode mode)
semantic.setSkipFunctionBodies(true);
_globalNamespace = _control->newNamespace(0);
Scope *globals = _globalNamespace->members();
Scope *globals = _globalNamespace;
if (! _translationUnit->ast())
return; // nothing to do.
......
......@@ -84,7 +84,6 @@ public:
unsigned globalSymbolCount() const;
Symbol *globalSymbolAt(unsigned index) const;
Scope *globalSymbols() const; // ### deprecate?
Namespace *globalNamespace() const;
void setGlobalNamespace(Namespace *globalNamespace); // ### internal
......
......@@ -401,7 +401,7 @@ FullySpecifiedType DeprecatedGenTemplateInstance::instantiate(const Name *classN
{
if (className) {
if (const TemplateNameId *templId = className->asTemplateNameId()) {
if (Class *klass = candidate->enclosingSymbol()->asClass()) {
if (Class *klass = candidate->scope()->asClass()) {
DeprecatedGenTemplateInstance::Substitution subst;
for (unsigned i = 0; i < templId->templateArgumentCount(); ++i) {
......
......@@ -209,7 +209,7 @@ bool FindUsages::checkCandidates(const QList<LookupItem> &candidates) const
const LookupItem &r = candidates.at(i);
if (Symbol *s = r.declaration()) {
if (_declSymbol->scope() && (_declSymbol->scope()->isPrototypeScope() || _declSymbol->scope()->isBlockScope())) {
if (_declSymbol->scope() && (_declSymbol->scope()->isFunction() || _declSymbol->scope()->isBlock())) {
if (s->scope() != _declSymbol->scope())
return false;
......@@ -240,19 +240,12 @@ void FindUsages::checkExpression(unsigned startToken, unsigned endToken, Scope *
reportResult(endToken, results);
}
Scope *FindUsages::switchScope(ScopedSymbol *symbol)
{
if (! symbol)
return _currentScope; // ### assert?
return switchScope(symbol->members());
}
Scope *FindUsages::switchScope(Scope *scope)
{
Scope *previousScope = _currentScope;
_currentScope = scope;
return previousScope;
if (! scope)
return _currentScope;
return switchScope(scope);
}
void FindUsages::statement(StatementAST *ast)
......@@ -345,7 +338,7 @@ bool FindUsages::visit(DeclaratorAST *ast)
return false;
}
void FindUsages::declarator(DeclaratorAST *ast, ScopedSymbol *symbol)
void FindUsages::declarator(DeclaratorAST *ast, Scope *symbol)
{
if (! ast)
return;
......@@ -493,13 +486,13 @@ void FindUsages::memInitializer(MemInitializerAST *ast)
if (! ast)
return;
if (_currentScope->isPrototypeScope()) {
Scope *classScope = _currentScope->enclosingClassScope();
if (_currentScope->isFunction()) {
Class *classScope = _currentScope->enclosingClass();
if (! classScope) {
if (ClassOrNamespace *binding = _context.lookupType(_currentScope->owner())) {
if (ClassOrNamespace *binding = _context.lookupType(_currentScope)) {
foreach (Symbol *s, binding->symbols()) {
if (Class *k = s->asClass()) {
classScope = k->members();
classScope = k;
break;
}
}
......@@ -658,7 +651,7 @@ void FindUsages::translationUnit(TranslationUnitAST *ast)
if (! ast)
return;
Scope *previousScope = switchScope(_doc->globalSymbols());
Scope *previousScope = switchScope(_doc->globalNamespace());
for (DeclarationListAST *it = ast->declaration_list; it; it = it->next) {
this->declaration(it->value);
}
......
......@@ -71,7 +71,6 @@ protected:
using ASTVisitor::translationUnit;
Scope *switchScope(Scope *scope);
Scope *switchScope(ScopedSymbol *symbol);
QString matchingLine(const Token &tk) const;
......@@ -97,7 +96,7 @@ protected:
void objCSelectorArgument(ObjCSelectorArgumentAST *ast);
void attribute(AttributeAST *ast);
void declarator(DeclaratorAST *ast, ScopedSymbol *symbol = 0);
void declarator(DeclaratorAST *ast, Scope *symbol = 0);
void qtPropertyDeclarationItem(QtPropertyDeclarationItemAST *ast);
void qtInterfaceName(QtInterfaceNameAST *ast);
void baseSpecifier(BaseSpecifierAST *ast);
......
......@@ -99,7 +99,7 @@ Icons::IconType Icons::iconTypeForSymbol(const Symbol *symbol)
} else if (symbol->isPrivate()) {
return FuncPrivateIconType;
}
} else if (symbol->scope() && symbol->scope()->isEnumScope()) {
} else if (symbol->scope() && symbol->scope()->isEnum()) {
return EnumeratorIconType;
} else if (symbol->isDeclaration() || symbol->isArgument()) {
if (symbol->isPublic()) {
......
......@@ -68,7 +68,7 @@ static void path_helper(Symbol *symbol, QList<const Name *> *names)
if (! symbol)
return;
path_helper(symbol->enclosingSymbol(), names);
path_helper(symbol->scope(), names);
if (symbol->name()) {
if (symbol->isClass() || symbol->isNamespace()) {
......@@ -142,7 +142,7 @@ LookupContext &LookupContext::operator = (const LookupContext &other)
QList<const Name *> LookupContext::fullyQualifiedName(Symbol *symbol)
{
QList<const Name *> qualifiedName = path(symbol->enclosingSymbol());
QList<const Name *> qualifiedName = path(symbol->scope());
addNames(symbol->name(), &qualifiedName, /*add all names*/ true);
return qualifiedName;
}
......@@ -238,7 +238,7 @@ ClassOrNamespace *LookupContext::globalNamespace() const
ClassOrNamespace *LookupContext::lookupType(const Name *name, Scope *scope) const
{
if (ClassOrNamespace *b = bindings()->lookupType(scope->owner()))
if (ClassOrNamespace *b = bindings()->lookupType(scope))
return b->lookupType(name);
return 0;
......@@ -256,18 +256,18 @@ QList<LookupItem> LookupContext::lookup(const Name *name, Scope *scope) const
if (! name)
return candidates;
for (; scope; scope = scope->enclosingScope()) {
if ((name->isNameId() || name->isTemplateNameId()) && scope->isBlockScope()) {
for (; scope; scope = scope->scope()) {
if ((name->isNameId() || name->isTemplateNameId()) && scope->isBlock()) {
bindings()->lookupInScope(name, scope, &candidates, /*templateId = */ 0, /*binding=*/ 0);
if (! candidates.isEmpty())
break; // it's a local.
for (unsigned index = 0; index < scope->symbolCount(); ++index) {
Symbol *member = scope->symbolAt(index);
for (unsigned index = 0; index < scope->memberCount(); ++index) {
Symbol *member = scope->memberAt(index);
if (UsingNamespaceDirective *u = member->asUsingNamespaceDirective()) {
if (Namespace *enclosingNamespace = u->enclosingNamespaceScope()->owner()->asNamespace()) {
if (Namespace *enclosingNamespace = u->enclosingNamespace()->asNamespace()) {
if (ClassOrNamespace *b = bindings()->lookupType(enclosingNamespace)) {
if (ClassOrNamespace *uu = b->lookupType(u->name())) {
candidates = uu->find(name);
......@@ -280,9 +280,8 @@ QList<LookupItem> LookupContext::lookup(const Name *name, Scope *scope) const
}
}
} else if (scope->isPrototypeScope()) {
Function *fun = scope->owner()->asFunction();
bindings()->lookupInScope(name, fun->members(), &candidates, /*templateId = */ 0, /*binding=*/ 0);
} else if (Function *fun = scope->asFunction()) {
bindings()->lookupInScope(name, fun, &candidates, /*templateId = */ 0, /*binding=*/ 0);
for (TemplateParameters *it = fun->templateParameters(); it && candidates.isEmpty(); it = it->previous())
bindings()->lookupInScope(name, it->scope(), &candidates, /* templateId = */ 0, /*binding=*/ 0);
......@@ -301,16 +300,13 @@ QList<LookupItem> LookupContext::lookup(const Name *name, Scope *scope) const
// contunue, and look at the enclosing scope.
} else if (scope->isObjCMethodScope()) {
ObjCMethod *method = scope->owner()->asObjCMethod();
bindings()->lookupInScope(name, method->arguments(), &candidates, /*templateId = */ 0, /*binding=*/ 0);
} else if (ObjCMethod *method = scope->asObjCMethod()) {
bindings()->lookupInScope(name, method, &candidates, /*templateId = */ 0, /*binding=*/ 0);
if (! candidates.isEmpty())
break; // it's a formal argument.
} else if (scope->isClassScope()) {
Class *klass = scope->owner()->asClass();
} else if (Class *klass = scope->asClass()) {
for (TemplateParameters *it = klass->templateParameters(); it && candidates.isEmpty(); it = it->previous())
bindings()->lookupInScope(name, it->scope(), &candidates, /* templateId = */ 0, /*binding=*/ 0);
......@@ -324,15 +320,15 @@ QList<LookupItem> LookupContext::lookup(const Name *name, Scope *scope) const
return candidates;
}
} else if (scope->isNamespaceScope()) {
if (ClassOrNamespace *binding = bindings()->lookupType(scope->owner()))
} else if (Namespace *ns = scope->asNamespace()) {
if (ClassOrNamespace *binding = bindings()->lookupType(ns))
candidates = binding->find(name);
if (! candidates.isEmpty())
return candidates;
} else if (scope->isObjCClassScope() || scope->isObjCProtocolScope()) {
if (ClassOrNamespace *binding = bindings()->lookupType(scope->owner()))
} else if (scope->isObjCClass() || scope->isObjCProtocol()) {
if (ClassOrNamespace *binding = bindings()->lookupType(scope))
candidates = binding->find(name);
if (! candidates.isEmpty())
......@@ -456,8 +452,8 @@ void ClassOrNamespace::lookup_helper(const Name *name, ClassOrNamespace *binding
if (s->isFriend())
continue;
if (ScopedSymbol *scoped = s->asScopedSymbol()) {
if (Class *klass = scoped->asClass()) {
if (Scope *scope = s->asScope()) {
if (Class *klass = scope->asClass()) {
if (const Identifier *id = klass->identifier()) {
if (nameId && nameId->isEqualTo(id)) {
LookupItem item;
......@@ -467,12 +463,12 @@ void ClassOrNamespace::lookup_helper(const Name *name, ClassOrNamespace *binding
}
}
}
_factory->lookupInScope(name, scoped->members(), result, templateId, binding);
_factory->lookupInScope(name, scope, result, templateId, binding);
}
}
foreach (Enum *e, binding->enums())
_factory->lookupInScope(name, e->members(), result, templateId, binding);
_factory->lookupInScope(name, e, result, templateId, binding);
foreach (ClassOrNamespace *u, binding->usings())
lookup_helper(name, u, result, processed, binding->_templateId);
......@@ -490,7 +486,7 @@ void CreateBindings::lookupInScope(const Name *name, Scope *scope,
return;
} else if (const OperatorNameId *op = name->asOperatorNameId()) {
for (Symbol *s = scope->lookat(op->kind()); s; s = s->next()) {
for (Symbol *s = scope->find(op->kind()); s; s = s->next()) {
if (! s->name())
continue;
else if (s->isFriend())
......@@ -505,7 +501,7 @@ void CreateBindings::lookupInScope(const Name *name, Scope *scope,
}
} else if (const Identifier *id = name->identifier()) {
for (Symbol *s = scope->lookat(id); s; s = s->next()) {
for (Symbol *s = scope->find(id); s; s = s->next()) {
if (s->isFriend())
continue; // skip friends
else if (! id->isEqualTo(s->identifier()))
......
......@@ -79,13 +79,9 @@ QModelIndex OverviewModel::index(int row, int column, const QModelIndex &parent)
Symbol *parentSymbol = static_cast<Symbol *>(parent.internalPointer());
Q_ASSERT(parentSymbol);
ScopedSymbol *scopedSymbol = parentSymbol->asScopedSymbol();
Q_ASSERT(scopedSymbol);
Scope *scope = scopedSymbol->members();
Q_ASSERT(scope);
return createIndex(row, 0, scope->symbolAt(row));
Scope *scope = parentSymbol->asScope();
Q_ASSERT(scope != 0);
return createIndex(row, 0, scope->memberAt(row));
}
}
......@@ -96,14 +92,12 @@ QModelIndex OverviewModel::parent(const QModelIndex &child) const
return QModelIndex();
if (Scope *scope = symbol->scope()) {
Symbol *parentSymbol = scope->owner();
if (parentSymbol && parentSymbol->scope()) {
if (scope->scope()) {
QModelIndex index;
if (parentSymbol->scope() && parentSymbol->scope()->owner()
&& parentSymbol->scope()->owner()->scope()) // the parent doesn't have a parent
index = createIndex(parentSymbol->index(), 0, parentSymbol);
if (scope->scope() && scope->scope()->scope()) // the parent doesn't have a parent
index = createIndex(scope->index(), 0, scope);
else //+1 to account for no symbol item
index = createIndex(parentSymbol->index() + 1, 0, parentSymbol);
index = createIndex(scope->index() + 1, 0, scope);
return index;
}
}
......@@ -122,12 +116,9 @@ int OverviewModel::rowCount(const QModelIndex &parent) const
Symbol *parentSymbol = static_cast<Symbol *>(parent.internalPointer());
Q_ASSERT(parentSymbol);
if (ScopedSymbol *scopedSymbol = parentSymbol->asScopedSymbol()) {
if (!scopedSymbol->isFunction() && !scopedSymbol->isObjCMethod()) {
Scope *parentScope = scopedSymbol->members();
Q_ASSERT(parentScope);
return parentScope->symbolCount();
if (Scope *parentScope = parentSymbol->asScope()) {
if (!parentScope->isFunction() && !parentScope->isObjCMethod()) {
return parentScope->memberCount();
}
}
return 0;
......
......@@ -88,7 +88,8 @@ QList<LookupItem> ResolveExpression::operator()(ExpressionAST *ast, Scope *scope
QList<LookupItem> ResolveExpression::resolve(ExpressionAST *ast, Scope *scope)
{
Q_ASSERT(scope != 0);
if (! scope)
return QList<LookupItem>();
Scope *previousVisibleSymbol = _scope;
_scope = scope;
......@@ -174,7 +175,7 @@ bool ResolveExpression::visit(BinaryExpressionAST *ast)
bool ResolveExpression::visit(CastExpressionAST *ast)
{
Scope *dummyScope = _context.expressionDocument()->globalSymbols();
Scope *dummyScope = _context.expressionDocument()->globalNamespace();
FullySpecifiedType ty = sem.check(ast->type_id, dummyScope);
addResult(ty, _scope);
return false;
......@@ -199,7 +200,7 @@ bool ResolveExpression::visit(ConditionalExpressionAST *ast)
bool ResolveExpression::visit(CppCastExpressionAST *ast)
{
Scope *dummyScope = _context.expressionDocument()->globalSymbols();
Scope *dummyScope = _context.expressionDocument()->globalNamespace();
FullySpecifiedType ty = sem.check(ast->type_id, dummyScope);
addResult(ty, _scope);
return false;
......@@ -221,7 +222,7 @@ bool ResolveExpression::visit(ArrayInitializerAST *)
bool ResolveExpression::visit(NewExpressionAST *ast)
{
if (ast->new_type_id) {
Scope *dummyScope = _context.expressionDocument()->globalSymbols();
Scope *dummyScope = _context.expressionDocument()->globalNamespace();
FullySpecifiedType ty = sem.check(ast->new_type_id->type_specifier_list, dummyScope);
ty = sem.check(ast->new_type_id->ptr_operator_list, ty, dummyScope);
FullySpecifiedType ptrTy(control()->pointerType(ty));
......@@ -315,11 +316,9 @@ bool ResolveExpression::visit(ThisExpressionAST *)
void ResolveExpression::thisObject()
{
Scope *scope = _scope;
for (; scope; scope = scope->enclosingScope()) {
if (scope->isPrototypeScope()) {
Function *fun = scope->owner()->asFunction();
if (Scope *cscope = scope->enclosingClassScope()) {
Class *klass = cscope->owner()->asClass();
for (; scope; scope = scope->scope()) {
if (Function *fun = scope->asFunction()) {
if (Class *klass = scope->enclosingClass()) {
FullySpecifiedType classTy(control()->namedType(klass->name()));
FullySpecifiedType ptrTy(control()->pointerType(classTy));
addResult(ptrTy, fun->scope());
......@@ -562,7 +561,7 @@ QList<LookupItem> ResolveExpression::getMembers(ClassOrNamespace *binding, const
Symbol *decl = m.declaration();
if (Class *klass = decl->enclosingSymbol()->asClass()) {
if (Class *klass = decl->scope()->asClass()) {
if (klass->templateParameters() != 0) {
SubstitutionMap map;
......
......@@ -289,7 +289,7 @@ void Parser::addSymbol(const ParserTreeItem::Ptr &item, const CPlusPlus::Symbol
return;
// skip static local functions
// if ((!symbol->scope() || symbol->scope()->owner()->isClass())
// if ((!symbol->scope() || symbol->scope()->isClass())
// && symbol->isStatic() && symbol->isFunction())
// return;
......@@ -320,22 +320,19 @@ void Parser::addSymbol(const ParserTreeItem::Ptr &item, const CPlusPlus::Symbol
// prevent showing a content of the functions
if (!symbol->isFunction()) {
const CPlusPlus::ScopedSymbol *scopedSymbol = symbol->asScopedSymbol();
if (scopedSymbol) {
CPlusPlus::Scope *scope = scopedSymbol->members();
if (scope) {
CPlusPlus::Scope::iterator cur = scope->firstSymbol();
while (cur != scope->lastSymbol()) {
const CPlusPlus::Symbol *curSymbol = *cur;
++cur;
if (!curSymbol)
continue;
// if (!symbol->isClass() && curSymbol->isStatic() && curSymbol->isFunction())
// return;
addSymbol(itemAdd, curSymbol);
}
const CPlusPlus::Scope *scope = symbol->asScope();
if (scope) {
CPlusPlus::Scope::iterator cur = scope->firstMember();
while (cur != scope->lastMember()) {
const CPlusPlus::Symbol *curSymbol = *cur;
++cur;
if (!curSymbol)
continue;
// if (!symbol->isClass() && curSymbol->isStatic() && curSymbol->isFunction())
// return;
addSymbol(itemAdd, curSymbol);
}
}
}
......
......@@ -181,8 +181,8 @@ protected:
for (TemplateParameters *p = symbol->templateParameters(); p; p = p->previous()) {
Scope *scope = p->scope();
for (unsigned i = 0; i < scope->symbolCount(); ++i)
accept(scope->symbolAt(i));
for (unsigned i = 0; i < scope->memberCount(); ++i)
accept(scope->memberAt(i));
}
return true;
......@@ -201,7 +201,7 @@ protected:
virtual bool visit(Declaration *symbol)
{
if (symbol->enclosingEnumScope() != 0)
if (symbol->enclosingEnum() != 0)
addStatic(symbol->name());
if (Function *funTy = symbol->type()->asFunctionType()) {
......@@ -211,7 +211,7 @@ protected:
if (symbol->isTypedef())
addType(symbol->name());
else if (! symbol->type()->isFunctionType() && symbol->enclosingSymbol()->isClass())
else if (! symbol->type()->isFunctionType() && symbol->scope()->isClass())
addMember(symbol->name());
return true;
......@@ -239,8 +239,8 @@ protected:
{
for (TemplateParameters *p = symbol->templateParameters(); p; p = p->previous()) {
Scope *scope = p->scope();
for (unsigned i = 0; i < scope->symbolCount(); ++i)
accept(scope->symbolAt(i));
for (unsigned i = 0; i < scope->memberCount(); ++i)
accept(scope->memberAt(i));
}
addType(symbol->name());
......@@ -251,8 +251,8 @@ protected:
{
for (TemplateParameters *p = symbol->templateParameters(); p; p = p->previous()) {
Scope *scope = p->scope();
for (unsigned i = 0; i < scope->symbolCount(); ++i)
accept(scope->symbolAt(i));
for (unsigned i = 0; i < scope->memberCount(); ++i)
accept(scope->memberAt(i));
}
addType(symbol->name());
......@@ -383,48 +383,48 @@ Scope *CheckSymbols::enclosingScope() const
if (NamespaceAST *ns = ast->asNamespace()) {
if (ns->symbol)
return ns->symbol->members();
return ns->symbol;
} else if (ClassSpecifierAST *classSpec = ast->asClassSpecifier()) {
if (classSpec->symbol)
return classSpec->symbol->members();
return classSpec->symbol;
} else if (FunctionDefinitionAST *funDef = ast->asFunctionDefinition()) {
if (funDef->symbol)
return funDef->symbol->members();
return funDef->symbol;
} else if (CompoundStatementAST *blockStmt = ast->asCompoundStatement()) {
if (blockStmt->symbol)
return blockStmt->symbol->members();
return blockStmt->symbol;
} else if (IfStatementAST *ifStmt = ast->asIfStatement()) {
if (ifStmt->symbol)
return ifStmt->symbol->members();
return ifStmt->symbol;
} else if (WhileStatementAST *whileStmt = ast->asWhileStatement()) {
if (whileStmt->symbol)
return whileStmt->symbol->members();
return whileStmt->symbol;
} else if (ForStatementAST *forStmt = ast->asForStatement()) {
if (forStmt->symbol)
return forStmt->symbol->members();
return forStmt->symbol;
} else if (ForeachStatementAST *foreachStmt = ast->asForeachStatement()) {
if (foreachStmt->symbol)
return foreachStmt->symbol->members();
return foreachStmt->symbol;
} else if (SwitchStatementAST *switchStmt = ast->asSwitchStatement()) {
if (switchStmt->symbol)
return switchStmt->symbol->members();
return switchStmt->symbol;
} else if (CatchClauseAST *catchClause = ast->asCatchClause()) {
if (catchClause->symbol)
return catchClause->symbol->members();
return catchClause->symbol;
}
}
return _doc->globalSymbols();
return _doc->globalNamespace();
}
bool CheckSymbols::preVisit(AST *ast)
......@@ -596,7 +596,7 @@ bool CheckSymbols::hasVirtualDestructor(Class *klass) const
const Identifier *id = klass->identifier();
if (! id)
return false;
for (Symbol *s = klass->members()->lookat(id); s; s = s->next()) {
for (Symbol *s = klass->find(id); s; s = s->next()) {
if (! s->name())
continue;
else if (s->name()->isDestructorNameId()) {