source: src/Common/PassVisitor.impl.h @ 7dc09294

#pragma once
// IWYU pragma: private, include "PassVisitor.h"

#define VISIT_START( node )                     \
        __attribute__((unused))                   \
        guard_value_impl guard( at_cleanup_impl(pass, 0) );       \
        bool visit_children = true;               \
        set_visit_children( visit_children );   \
        call_previsit( node );                    \
        if( visit_children ) {                    \

#define VISIT_END( node )                       \
        }                                         \
        call_postvisit( node );                   \

#define MUTATE_START( node )                    \
        __attribute__((unused))                   \
        guard_value_impl guard( at_cleanup_impl(pass, 0) );       \
        bool visit_children = true;               \
        set_visit_children( visit_children );   \
        call_premutate( node );                   \
        if( visit_children ) {                    \

#define MUTATE_END( type, node )                \
        }                                         \
        return call_postmutate< type * >( node ); \


#define VISIT_BODY( node )        \
        VISIT_START( node );        \
        Visitor::visit( node );     \
        VISIT_END( node );          \


#define MUTATE_BODY( type, node ) \
        MUTATE_START( node );       \
        Mutator::mutate( node );    \
        MUTATE_END( type, node );   \



template<typename T>
static inline bool empty( T * ptr ) {
        return !ptr || ptr->empty();
}

typedef std::list< Statement   * > StmtList_t;
typedef std::list< Declaration * > DeclList_t;

template<typename iterator_t>
static inline void splice( iterator_t it, DeclList_t * decls ) {
        std::transform(
                decls->begin(),
                decls->end(),
                it,
                [](Declaration * decl) -> auto {
                        return new DeclStmt( noLabels, decl );
                }
        );
        decls->clear();
}

template< typename pass_type >
static inline void acceptAll( std::list< Declaration* > &decls, PassVisitor< pass_type >& visitor ) {

        DeclList_t* beforeDecls = visitor.get_beforeDecls();
        DeclList_t* afterDecls  = visitor.get_afterDecls();

        for ( std::list< Declaration* >::iterator i = decls.begin(); ; ++i ) {
                // splice in new declarations after previous decl
                if ( !empty( afterDecls ) ) { decls.splice( i, *afterDecls ); }

                if ( i == decls.end() ) break;

                // run mutator on declaration
                maybeAccept( *i, visitor );

                // splice in new declarations before current decl
                if ( !empty( beforeDecls ) ) { decls.splice( i, *beforeDecls ); }
        }
}

template< typename pass_type >
static inline void mutateAll( std::list< Declaration* > &decls, PassVisitor< pass_type >& mutator ) {

        DeclList_t* beforeDecls = mutator.get_beforeDecls();
        DeclList_t* afterDecls  = mutator.get_afterDecls();

        for ( std::list< Declaration* >::iterator i = decls.begin(); ; ++i ) {
                // splice in new declarations after previous decl
                if ( !empty( afterDecls ) ) { decls.splice( i, *afterDecls ); }

                if ( i == decls.end() ) break;

                // run mutator on declaration
                *i = maybeMutate( *i, mutator );

                // splice in new declarations before current decl
                if ( !empty( beforeDecls ) ) { decls.splice( i, *beforeDecls ); }
        }
}

template< typename pass_type >
template< typename func_t >
void PassVisitor< pass_type >::handleStatementList( std::list< Statement * > & statements, func_t func ) {
        SemanticError errors;

        // don't want statements from outer CompoundStmts to be added to this CompoundStmt
        ValueGuardPtr< StmtList_t > oldBeforeStmts( get_beforeStmts() );
        ValueGuardPtr< StmtList_t > oldAfterStmts ( get_afterStmts () );
        ValueGuardPtr< DeclList_t > oldBeforeDecls( get_beforeDecls() );
        ValueGuardPtr< DeclList_t > oldAfterDecls ( get_afterDecls () );

        StmtList_t* beforeStmts = get_beforeStmts();
        StmtList_t* afterStmts  = get_afterStmts();
        DeclList_t* beforeDecls = get_beforeDecls();
        DeclList_t* afterDecls  = get_afterDecls();

        for ( std::list< Statement* >::iterator i = statements.begin(); i != statements.end(); ++i ) {

                if ( !empty( afterDecls ) ) { splice( std::inserter( statements, i ), afterDecls ); }
                if ( !empty( afterStmts ) ) { statements.splice( i, *afterStmts ); }

                try {
                        func( *i );
                        assert(( empty( beforeStmts ) && empty( afterStmts ))
                            || ( empty( beforeDecls ) && empty( afterDecls )) );

                } catch ( SemanticError &e ) {
                        errors.append( e );
                }

                if ( !empty( beforeDecls ) ) { splice( std::inserter( statements, i ), beforeDecls ); }
                if ( !empty( beforeStmts ) ) { statements.splice( i, *beforeStmts ); }
        }

        if ( !empty( afterDecls ) ) { splice( std::back_inserter( statements ), afterDecls); }
        if ( !empty( afterStmts ) ) { statements.splice( statements.end(), *afterStmts ); }
        if ( !errors.isEmpty() ) { throw errors; }
}

template< typename pass_type >
void PassVisitor< pass_type >::visitStatementList( std::list< Statement * > & statements ) {
        handleStatementList( statements, [this]( Statement * stmt) {
                stmt->accept( *this );
        });
}

template< typename pass_type >
void PassVisitor< pass_type >::mutateStatementList( std::list< Statement * > & statements ) {
        handleStatementList( statements, [this]( Statement *& stmt) {
                stmt = stmt->acceptMutator( *this );
        });
}


template< typename pass_type >
template< typename func_t >
Statement * PassVisitor< pass_type >::handleStatement( Statement * stmt, func_t func ) {
        // don't want statements from outer CompoundStmts to be added to this CompoundStmt
        ValueGuardPtr< TypeSubstitution * >  oldEnv        ( get_env_ptr    () );
        ValueGuardPtr< DeclList_t >          oldBeforeDecls( get_beforeDecls() );
        ValueGuardPtr< DeclList_t >          oldAfterDecls ( get_afterDecls () );
        ValueGuardPtr< StmtList_t >          oldBeforeStmts( get_beforeStmts() );
        ValueGuardPtr< StmtList_t >          oldAfterStmts ( get_afterStmts () );

        Statement *newStmt = func( stmt );

        StmtList_t* beforeStmts = get_beforeStmts();
        StmtList_t* afterStmts  = get_afterStmts();
        DeclList_t* beforeDecls = get_beforeDecls();
        DeclList_t* afterDecls  = get_afterDecls();

        if( empty(beforeStmts) && empty(afterStmts) && empty(beforeDecls) && empty(afterDecls) ) { return newStmt; }
        assert(( empty( beforeStmts ) && empty( afterStmts ))
            || ( empty( beforeDecls ) && empty( afterDecls )) );

        CompoundStmt *compound = new CompoundStmt( noLabels );
        if( !empty(beforeDecls) ) { splice( std::back_inserter( compound->get_kids() ), beforeDecls ); }
        if( !empty(beforeStmts) ) { compound->get_kids().splice( compound->get_kids().end(), *beforeStmts ); }
        compound->get_kids().push_back( newStmt );
        if( !empty(afterDecls) ) { splice( std::back_inserter( compound->get_kids() ), afterDecls ); }
        if( !empty(afterStmts) ) { compound->get_kids().splice( compound->get_kids().end(), *afterStmts ); }
        return compound;
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::visitStatement( Statement * stmt ) {
        return handleStatement( stmt, [this]( Statement * stmt ) {
                maybeAccept( stmt, *this );
                return stmt;
        });
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutateStatement( Statement * stmt ) {
        return handleStatement( stmt, [this]( Statement * stmt ) {
                return maybeMutate( stmt, *this );
        });
}

template< typename pass_type >
template< typename func_t >
Expression * PassVisitor< pass_type >::handleExpression( Expression * expr, func_t func ) {
        if( !expr ) return nullptr;

        auto env_ptr = get_env_ptr();
        if ( env_ptr && expr->get_env() ) {
                *env_ptr = expr->get_env();
        }

        // should env be cloned (or moved) onto the result of the mutate?
        return func( expr );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::visitExpression( Expression * expr ) {
        return handleExpression(expr, [this]( Expression * expr ) {
                expr->accept( *this );
                return expr;
        });
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutateExpression( Expression * expr ) {
        return handleExpression(expr, [this]( Expression * expr ) {
                return expr->acceptMutator( *this );
        });
}

//------------------------------------------------------------------------------------------------------------------------------------------------------------------------

template< typename pass_type >
void PassVisitor< pass_type >::visit( ObjectDecl * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( FunctionDecl * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( StructDecl * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( UnionDecl * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( EnumDecl * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( TraitDecl * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( TypeDecl * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( TypedefDecl * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( AsmDecl * node ) {
        VISIT_BODY( node );
}

//--------------------------------------------------------------------------
// CompoundStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( CompoundStmt * node ) {
        VISIT_START( node );
        call_beginScope();

        visitStatementList( node->get_kids() );

        call_endScope();
        VISIT_END( node );
}

template< typename pass_type >
CompoundStmt * PassVisitor< pass_type >::mutate( CompoundStmt * node ) {
        MUTATE_START( node );
        call_beginScope();

        mutateStatementList( node->get_kids() );

        call_endScope();
        MUTATE_END( CompoundStmt, node );
}

//--------------------------------------------------------------------------
// ExprStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( ExprStmt * node ) {
        VISIT_START( node );

        visitExpression( node->get_expr() );

        VISIT_END( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( ExprStmt * node ) {
        MUTATE_START( node );

        node->set_expr( mutateExpression( node->get_expr() ) );

        MUTATE_END( Statement, node );
}

//--------------------------------------------------------------------------
// AsmStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( AsmStmt * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( AsmStmt * node ) {
        MUTATE_BODY( Statement, node );
}

//--------------------------------------------------------------------------
// IfStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( IfStmt * node ) {
        VISIT_START( node );

        visitExpression( node->get_condition() );
        node->set_thenPart ( visitStatement( node->get_thenPart() ) );
        node->set_elsePart ( visitStatement( node->get_elsePart() ) );

        VISIT_END( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( IfStmt * node ) {
        MUTATE_START( node );

        node->set_condition( mutateExpression( node->get_condition() ) );
        node->set_thenPart ( mutateStatement ( node->get_thenPart()  ) );
        node->set_elsePart ( mutateStatement ( node->get_elsePart()  ) );

        MUTATE_END( Statement, node );
}

//--------------------------------------------------------------------------
// WhileStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( WhileStmt * node ) {
        VISIT_START( node );

        visitExpression( node->get_condition() );
        node->set_body( visitStatement( node->get_body() ) );

        VISIT_END( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( WhileStmt * node ) {
        MUTATE_START( node );

        node->set_condition( mutateExpression( node->get_condition() ) );
        node->set_body( mutateStatement( node->get_body() ) );

        MUTATE_END( Statement, node );
}

//--------------------------------------------------------------------------
// ForStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( ForStmt * node ) {
        VISIT_START( node );

        acceptAll( node->get_initialization(), *this );
        visitExpression( node->get_condition() );
        visitExpression( node->get_increment() );
        node->set_body( visitStatement( node->get_body() ) );

        VISIT_END( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( ForStmt * node ) {
        MUTATE_START( node );

        mutateAll( node->get_initialization(), *this );
        node->set_condition( mutateExpression( node->get_condition() ) );
        node->set_increment( mutateExpression( node->get_increment() ) );
        node->set_body( mutateStatement( node->get_body() ) );

        MUTATE_END( Statement, node );
}

//--------------------------------------------------------------------------
// SwitchStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( SwitchStmt * node ) {
        VISIT_START( node );

        visitExpression( node->get_condition() );
        visitStatementList( node->get_statements() );

        VISIT_END( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( SwitchStmt * node ) {
        MUTATE_START( node );

        node->set_condition( mutateExpression( node->get_condition() ) );
        mutateStatementList( node->get_statements() );

        MUTATE_END( Statement, node );
}

//--------------------------------------------------------------------------
// CaseStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( CaseStmt * node ) {
        VISIT_START( node );

        visitExpression( node->get_condition() );
        visitStatementList( node->get_statements() );

        VISIT_END( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( CaseStmt * node ) {
        MUTATE_START( node );

        node->set_condition(  mutateExpression( node->get_condition() ) );
        mutateStatementList( node->get_statements() );

        MUTATE_END( Statement, node );
}

//--------------------------------------------------------------------------
// BranchStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( BranchStmt * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( BranchStmt * node ) {
        MUTATE_BODY( Statement, node );
}

//--------------------------------------------------------------------------
// ReturnStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( ReturnStmt * node ) {
        VISIT_START( node );

        visitExpression( node->get_expr() );

        VISIT_END( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( ReturnStmt * node ) {
        MUTATE_START( node );

        node->set_expr( mutateExpression( node->get_expr() ) );

        MUTATE_END( Statement, node );
}

//--------------------------------------------------------------------------
// ThrowStmt

template< typename pass_type >
void PassVisitor< pass_type >::visit( ThrowStmt * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( ThrowStmt * node ) {
        MUTATE_BODY( Statement, node );
}

//--------------------------------------------------------------------------
// TryStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( TryStmt * node ) {
        VISIT_START( node );

        maybeAccept( node->get_block(), *this );
        acceptAll( node->get_catchers(), *this );
        maybeAccept( node->get_finally(), *this );

        VISIT_END( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( TryStmt * node ) {
        MUTATE_START( node );

        node->set_block(  maybeMutate( node->get_block(), *this ) );
        mutateAll( node->get_catchers(), *this );
        node->set_finally( maybeMutate( node->get_finally(), *this ) );

        MUTATE_END( Statement, node );
}

//--------------------------------------------------------------------------
// CatchStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( CatchStmt * node ) {
        VISIT_START( node );

        maybeAccept( node->get_decl(), *this );
        node->set_cond( visitExpression( node->get_cond() ) );
        node->set_body( visitStatement( node->get_body() ) );

        VISIT_END( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( CatchStmt * node ) {
        MUTATE_START( node );

        node->set_decl( maybeMutate( node->get_decl(), *this ) );
        node->set_cond( mutateExpression( node->get_cond() ) );
        node->set_body( mutateStatement( node->get_body() ) );

        MUTATE_END( Statement, node );
}

//--------------------------------------------------------------------------
// FinallyStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( FinallyStmt * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( FinallyStmt * node ) {
        MUTATE_BODY( Statement, node );
}

//--------------------------------------------------------------------------
// WaitForStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( WaitForStmt * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( WaitForStmt * node ) {
        MUTATE_BODY( Statement, node );
}

//--------------------------------------------------------------------------
// NullStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( NullStmt * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
NullStmt * PassVisitor< pass_type >::mutate( NullStmt * node ) {
        MUTATE_BODY( NullStmt, node );
}

//--------------------------------------------------------------------------
// DeclStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( DeclStmt * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( DeclStmt * node ) {
        MUTATE_BODY( Statement, node );
}

//--------------------------------------------------------------------------
// ImplicitCtorDtorStmt
template< typename pass_type >
void PassVisitor< pass_type >::visit( ImplicitCtorDtorStmt * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
Statement * PassVisitor< pass_type >::mutate( ImplicitCtorDtorStmt * node ) {
        MUTATE_BODY( Statement, node );
}

//--------------------------------------------------------------------------
// ApplicationExpr
template< typename pass_type >
void PassVisitor< pass_type >::visit( ApplicationExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( ApplicationExpr * node ) {
        MUTATE_BODY( Expression, node );
}

//--------------------------------------------------------------------------
// UntypedExpr
template< typename pass_type >
void PassVisitor< pass_type >::visit( UntypedExpr * node ) {
        VISIT_START( node );

        // maybeAccept( node->get_env(), *this );
        maybeAccept( node->get_result(), *this );

        for ( auto expr : node->get_args() ) {
                visitExpression( expr );
        }

        VISIT_END( node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( UntypedExpr * node ) {
        MUTATE_START( node );

        node->set_env( maybeMutate( node->get_env(), *this ) );
        node->set_result( maybeMutate( node->get_result(), *this ) );

        for ( auto& expr : node->get_args() ) {
                expr = mutateExpression( expr );
        }

        MUTATE_END( Expression, node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( NameExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( CastExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( VirtualCastExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( AddressExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( LabelAddressExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( UntypedMemberExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( MemberExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( VariableExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( ConstantExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( SizeofExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( AlignofExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( UntypedOffsetofExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( OffsetofExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( OffsetPackExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( AttrExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( LogicalExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( ConditionalExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( CommaExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( TypeExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( AsmExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( ImplicitCopyCtorExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( ConstructorExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( CompoundLiteralExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( RangeExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( UntypedTupleExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( TupleExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( TupleIndexExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( TupleAssignExpr * node ) {
        VISIT_BODY( node );
}

//--------------------------------------------------------------------------
// UntypedExpr
template< typename pass_type >
void PassVisitor< pass_type >::visit( StmtExpr * node ) {
        VISIT_START( node );

        // don't want statements from outer CompoundStmts to be added to this StmtExpr
        ValueGuardPtr< TypeSubstitution * >      oldEnv        ( get_env_ptr() );
        ValueGuardPtr< std::list< Statement* > > oldBeforeStmts( get_beforeStmts() );
        ValueGuardPtr< std::list< Statement* > > oldAfterStmts ( get_afterStmts () );

        Visitor::visit( node );

        VISIT_END( node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( StmtExpr * node ) {
        MUTATE_START( node );

        // don't want statements from outer CompoundStmts to be added to this StmtExpr
        ValueGuardPtr< TypeSubstitution * >      oldEnv        ( get_env_ptr() );
        ValueGuardPtr< std::list< Statement* > > oldBeforeStmts( get_beforeStmts() );
        ValueGuardPtr< std::list< Statement* > > oldAfterStmts ( get_afterStmts () );

        Mutator::mutate( node );

        MUTATE_END( Expression, node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( UniqueExpr * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( VoidType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( BasicType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( PointerType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( ArrayType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( ReferenceType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( FunctionType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( StructInstType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( UnionInstType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( EnumInstType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( TraitInstType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( TypeInstType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( TupleType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( TypeofType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( AttrType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( VarArgsType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( ZeroType * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( OneType * node ) {
        VISIT_BODY( node );
}

//--------------------------------------------------------------------------
// UntypedExpr
template< typename pass_type >
void PassVisitor< pass_type >::visit( SingleInit * node ) {
        VISIT_START( node );

        visitExpression( node->get_value() );

        VISIT_END( node );
}

template< typename pass_type >
Initializer * PassVisitor< pass_type >::mutate( SingleInit * node ) {
        MUTATE_START( node );

        node->set_value( mutateExpression( node->get_value() ) );

        MUTATE_END( Initializer, node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( ListInit * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( ConstructorInit * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( Subrange * node ) {
        VISIT_BODY( node );
}

template< typename pass_type >
void PassVisitor< pass_type >::visit( Constant * node ) {
        VISIT_BODY( node );
}

//---------------------------------------------------------------------------------------------------------------

template< typename pass_type >
DeclarationWithType * PassVisitor< pass_type >::mutate( ObjectDecl * node ) {
        MUTATE_BODY( DeclarationWithType, node );
}

template< typename pass_type >
DeclarationWithType * PassVisitor< pass_type >::mutate( FunctionDecl * node ) {
        MUTATE_BODY( DeclarationWithType, node );
}

template< typename pass_type >
Declaration * PassVisitor< pass_type >::mutate( StructDecl * node ) {
        MUTATE_BODY( Declaration, node );
}

template< typename pass_type >
Declaration * PassVisitor< pass_type >::mutate( UnionDecl * node ) {
        MUTATE_BODY( Declaration, node );
}

template< typename pass_type >
Declaration * PassVisitor< pass_type >::mutate( EnumDecl * node ) {
        MUTATE_BODY( Declaration, node );
}

template< typename pass_type >
Declaration * PassVisitor< pass_type >::mutate( TraitDecl * node ) {
        MUTATE_BODY( Declaration, node );
}

template< typename pass_type >
Declaration * PassVisitor< pass_type >::mutate( TypeDecl * node ) {
        MUTATE_BODY( Declaration, node );
}

template< typename pass_type >
Declaration * PassVisitor< pass_type >::mutate( TypedefDecl * node ) {
        MUTATE_BODY( Declaration, node );
}

template< typename pass_type >
AsmDecl * PassVisitor< pass_type >::mutate( AsmDecl * node ) {
        MUTATE_BODY( AsmDecl, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( NameExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( AddressExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( LabelAddressExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( CastExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( VirtualCastExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( UntypedMemberExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( MemberExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( VariableExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( ConstantExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( SizeofExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( AlignofExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( UntypedOffsetofExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( OffsetofExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( OffsetPackExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( AttrExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( LogicalExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( ConditionalExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( CommaExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( TypeExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( AsmExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( ImplicitCopyCtorExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( ConstructorExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( CompoundLiteralExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( RangeExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( UntypedTupleExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( TupleExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( TupleIndexExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( TupleAssignExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Expression * PassVisitor< pass_type >::mutate( UniqueExpr * node ) {
        MUTATE_BODY( Expression, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( VoidType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( BasicType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( PointerType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( ArrayType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( ReferenceType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( FunctionType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( StructInstType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( UnionInstType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( EnumInstType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( TraitInstType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( TypeInstType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( TupleType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( TypeofType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( AttrType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( VarArgsType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( ZeroType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Type * PassVisitor< pass_type >::mutate( OneType * node ) {
        MUTATE_BODY( Type, node );
}

template< typename pass_type >
Initializer * PassVisitor< pass_type >::mutate( ListInit * node ) {
        MUTATE_BODY( Initializer, node );
}

template< typename pass_type >
Initializer * PassVisitor< pass_type >::mutate( ConstructorInit * node ) {
        MUTATE_BODY( Initializer, node );
}

template< typename pass_type >
Subrange * PassVisitor< pass_type >::mutate( Subrange * node  )  {
        MUTATE_BODY( Subrange, node );
}

template< typename pass_type >
Constant * PassVisitor< pass_type >::mutate( Constant * node  )  {
        MUTATE_BODY( Constant, node );
}