Changeset afc1045 for src/SynTree

Timestamp:

Apr 5, 2016, 3:31:09 PM (9 years ago)

Author:

Aaron Moss <a3moss@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, ctor, deferred_resn, demangler, enum, forall-pointer-decay, gc_noraii, jacob/cs343-translation, jenkins-sandbox, master, memory, new-ast, new-ast-unique-expr, new-env, no_list, persistent-indexer, pthread-emulation, qualifiedEnum, resolv-new, string, with_gc

Children:

d75038c

Parents:

b3f9a0cb

Message:

Hoist OffsetPackExpr to top level expression

Location:

src/SynTree

Files:

• Expression.cc (modified) (1 diff)
• Expression.h (modified) (1 diff)
• Mutator.cc (modified) (1 diff)
• Mutator.h (modified) (1 diff)
• SynTree.h (modified) (1 diff)
• Visitor.cc (modified) (1 diff)
• Visitor.h (modified) (1 diff)

src/SynTree/Expression.cc

@@ -222 +222 @@
 }
 
+OffsetPackExpr::OffsetPackExpr( StructInstType *type_, Expression *aname_ ) : Expression( aname_ ), type( type_ ) {
+        add_result( new ArrayType( Type::Qualifiers(), new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ), 0, false, false ) );
+}
+
+OffsetPackExpr::OffsetPackExpr( const OffsetPackExpr &other ) : Expression( other ), type( maybeClone( other.type ) ) {}
+
+OffsetPackExpr::~OffsetPackExpr() { delete type; }
+
+void OffsetPackExpr::print( std::ostream &os, int indent ) const {
+        os << std::string( indent, ' ' ) << "Offset pack expression on ";
+
+        if ( type ) {
+                type->print(os, indent + 2);
+        } else {
+                os << "<NULL>";
+        }
+
+        os << std::endl;
+        Expression::print( os, indent );
+}
+
 AttrExpr::AttrExpr( Expression *attr, Expression *expr_, Expression *_aname ) :
                 Expression( _aname ), attr( attr ), expr(expr_), type(0), isType(false) {

src/SynTree/Expression.h

@@ -362 +362 @@
 };
 
+/// Expression representing a pack of field-offsets for a generic type
+class OffsetPackExpr : public Expression {
+public:
+        OffsetPackExpr( StructInstType *type_, Expression *aname_ = 0 );
+        OffsetPackExpr( const OffsetPackExpr &other );
+        virtual ~OffsetPackExpr();
+
+        StructInstType *get_type() const { return type; }
+        void set_type( StructInstType *newValue ) { type = newValue; }
+
+        virtual OffsetPackExpr *clone() const { return new OffsetPackExpr( *this ); }
+        virtual void accept( Visitor &v ) { v.visit( this ); }
+        virtual Expression *acceptMutator( Mutator &m ) { return m.mutate( this ); }
+
+        virtual void print( std::ostream &os, int indent = 0 ) const;
+
+private:
+        StructInstType *type;
+};
+
 /// AttrExpr represents an @attribute expression (like sizeof, but user-defined)
 class AttrExpr : public Expression {

src/SynTree/Mutator.cc

@@ -274 +274 @@
 }
 
+Expression *Mutator::mutate( OffsetPackExpr *offsetPackExpr ) {
+        mutateAll( offsetPackExpr->get_results(), *this );
+        offsetPackExpr->set_type( maybeMutate( offsetPackExpr->get_type(), *this ) );
+        return offsetPackExpr;
+}
+
 Expression *Mutator::mutate( AttrExpr *attrExpr ) {
         mutateAll( attrExpr->get_results(), *this );

src/SynTree/Mutator.h

@@ -67 +67 @@
         virtual Expression* mutate( UntypedOffsetofExpr *offsetofExpr );
         virtual Expression* mutate( OffsetofExpr *offsetofExpr );
+        virtual Expression* mutate( OffsetPackExpr *offsetPackExpr );
         virtual Expression* mutate( AttrExpr *attrExpr );
         virtual Expression* mutate( LogicalExpr *logicalExpr );

src/SynTree/SynTree.h

@@ -72 +72 @@
 class UntypedOffsetofExpr;
 class OffsetofExpr;
+class OffsetPackExpr;
 class AttrExpr;
 class LogicalExpr;

src/SynTree/Visitor.cc

@@ -230 +230 @@
 }
 
+void Visitor::visit( OffsetPackExpr *offsetPackExpr ) {
+        acceptAll( offsetPackExpr->get_results(), *this );
+        maybeAccept( offsetPackExpr->get_type(), *this );
+}
+
 void Visitor::visit( AttrExpr *attrExpr ) {
         acceptAll( attrExpr->get_results(), *this );

src/SynTree/Visitor.h

@@ -67 +67 @@
         virtual void visit( UntypedOffsetofExpr *offsetofExpr );
         virtual void visit( OffsetofExpr *offsetofExpr );
+        virtual void visit( OffsetPackExpr *offsetPackExpr );
         virtual void visit( AttrExpr *attrExpr );
         virtual void visit( LogicalExpr *logicalExpr );