public override AstNode Visit(DereferenceOperation node)
{
// Begin the node.
builder.BeginNode(node);
// Get the pointer expression.
Expression pointer = node.GetPointer();
pointer.Accept(this);
// Perform pointer coercion.
IChelaType pointerType = pointer.GetNodeType();
IChelaType coercionType = node.GetCoercionType();
if(pointerType != coercionType)
Cast(node, pointer.GetNodeValue(), pointerType, coercionType);
return builder.EndNode();
}
public override AstNode Visit(DereferenceOperation node)
{
// Evaluate the pointer.
Expression pointerExpr = node.GetPointer();
pointerExpr.Accept(this);
// Get the pointer type.
IChelaType pointerType = pointerExpr.GetNodeType();
if(pointerType.IsReference())
pointerType = DeReferenceType(pointerType);
// Constant pointer aren't problems.
if(pointerType.IsConstant())
pointerType = DeConstType(pointerType);
// Must be a pointer.
if(!pointerType.IsPointer())
Error(node, "expected pointer expression.");
// Set the coercion type.
node.SetCoercionType(pointerType);
// Create the "variable".
IChelaType slotType = DePointerType(pointerType);
PointedSlot slot = new PointedSlot(slotType);
node.SetNodeType(ReferenceType.Create(slotType));
node.SetNodeValue(slot);
return node;
}