public virtual void Visit(FieldAccessExpressionNode node)
{
node.expression.Accept(this);
node.identifier.Accept(this);
}
public override void Visit(FieldAccessExpressionNode node)
{
node.expression.Accept(this);
ClassDefinition classDefinition = Analysis.Environment.Classes.Lookup(node.expression.ExpressionType.Name);
FieldDefinition fieldDefinition = Analysis.Environment.LookupFieldInClass(node.identifier.name, classDefinition);
Gen("mov", "eax", "[eax+" + fieldDefinition.Location.ToString() + "]", "Accessing field " + classDefinition.Name + "." + fieldDefinition.Name + "()");
}
public override void Visit(FieldAccessExpressionNode node)
{
node.expression.Accept(this);
if (node.expression.ExpressionType.GetType() != typeof(ClassType))
throw new Exception("Object used for field access is not an instance of any Class");
ClassDefinition classDefinition = Analysis.Environment.Classes.Lookup(node.expression.ExpressionType.Name);
FieldDefinition fieldDefinition;
try
{
fieldDefinition = Analysis.Environment.LookupFieldInClass(node.identifier.name, classDefinition);
}
catch (Exception)
{
throw new Exception("Field '" + node.identifier.name + "' not found in class '" + node.expression.ExpressionType.Name + "'");
}
node.ExpressionType = fieldDefinition.FieldType;
}