public void HandleGetSize(TypeHandlingContext context)
{
IDeclaredType valueType = context.Type.GetScalarType();
if (valueType == null)
{
throw new NotSupportedException();
}
ITypeHandler valueHandler = TypeHandlers.All.SingleOrDefault(h => h.CanHandle(context.WithType(valueType)));
if (valueHandler == null)
{
throw new NotSupportedException();
}
var exists = context.Variables.Declare(VariableKeys.NotNull);
context.Builder.AppendFormat("var {0} = {1} != null;", exists, context.TypeOwnerName);
TypeHandlers.Boolean.HandleGetSize(new TypeHandlingContext(context)
{
TypeOwnerName = exists
});
context.Builder.AppendFormat("if({0})", exists).Append("{");
TypeHandlers.Int32.HandleGetSize(new TypeHandlingContext(context)
{
TypeOwnerName = String.Format("{0}.Length", context.TypeOwnerName)
});
context.Builder.AppendFormat("if({0}.Length > 0)", context.TypeOwnerName);
context.Builder.Append("{");
if (valueHandler.BinarySizePersistent)
{
var size = context.Variables.Declare(VariableKeys.ValueSize);
context.Builder.AppendFormat("var {0} = 0;", size);
valueHandler.HandleGetSize(new TypeHandlingContext(context)
{
SizeVariableKey = VariableKeys.ValueSize
});
context.Builder.AppendFormat("{0} += {1}*{2}.Length;", context.GetSizeVariableName(), size, context.TypeOwnerName);
}
else
{
var indexName = context.Variables.Declare(Index);
context.Builder.AppendFormat("for(Int32 {0} = 0; {0} < {1}.Length; {0}++)", indexName, context.TypeOwnerName);
context.Builder.Append("{");
valueHandler.HandleGetSize(new TypeHandlingContext(context)
{
TypeOwnerName = String.Format("{0}[{1}]", context.TypeOwnerName, indexName)
});
context.Builder.Append("}");
}
context.Builder.Append("}}");
}
public void HandleGetSize(TypeHandlingContext context)
{
IType valueType = context.Type.GetNullableUnderlyingType();
if (valueType == null)
{
throw new NotSupportedException();
}
var valueHandlingContext = new TypeHandlingContext(context)
{
Type = valueType,
TypeName = valueType.GetPresentableName(context.PresentationLanguage),
TypeOwnerName = String.Format("{0}.Value", context.TypeOwnerName),
};
ITypeHandler valueHandler = TypeHandlers.All.FirstOrDefault(h => h.CanHandle(valueHandlingContext));
if (valueHandler == null)
{
throw new NotSupportedException();
}
context.Builder.AppendFormat("{0} += sizeof(Boolean);", context.GetSizeVariableName());
valueHandler.HandleGetSize(context);
}
private static void Generate(CSharpGeneratorContext context,
IMethodDeclaration declaration,
IList <GeneratorDeclaredElement <ITypeOwner> > elements,
CSharpElementFactory factory)
{
var owner = (IParametersOwner)declaration.DeclaredElement;
if (owner == null)
{
return;
}
var ctx = new TypeHandlingContext(context);
var size = ctx.GetSizeVariableName();
ctx.Builder.Append("{");
ctx.Builder.AppendFormat("var {0} = 0;", size);
if (elements.Count > 0)
{
foreach (var element in elements)
{
ctx.Resolve(element.DeclaredElement);
ITypeHandler handler = TypeHandlers.All.SingleOrDefault(h => h.CanHandle(ctx));
if (handler != null)
{
handler.HandleGetSize(ctx);
}
}
}
ctx.Builder.AppendFormat("return {0};", size);
ctx.Builder.Append("}");
IBlock body = factory.CreateBlock(ctx.Builder.ToString(), ctx.Args.ToArray());
declaration.SetBody(body);
}