public void HandleRead(TypeHandlingContext context)
{
IType type = context.Type;
IType valueType = type.GetNullableUnderlyingType();
if (valueType == null)
{
throw new NotSupportedException();
}
var valueHandlingContext = new TypeHandlingContext(context)
{
Type = valueType,
TypeName = valueType.GetPresentableName(context.PresentationLanguage),
TypeOwnerName = String.Format("{0}", context.TypeOwnerName)
};
ITypeHandler valueHandler = TypeHandlers.All.FirstOrDefault(h => h.CanHandle(valueHandlingContext));
if (valueHandler == null)
{
throw new NotSupportedException();
}
context.Builder.Append("if(BitConverter.ToBoolean(bytes, index)){");
context.Builder.Append("index += sizeof(Boolean);");
valueHandler.HandleRead(valueHandlingContext);
context.Builder.Append("}");
context.Builder.Append("else{");
context.Builder.Append("index += sizeof(Boolean);");
context.Builder.Append("}");
}
public void HandleRead(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 indexName = context.Variables.Declare(Index);
var lengthName = context.Variables.Declare(Length);
var exists = context.Variables.Declare(VariableKeys.NotNull);
TypeHandlers.Boolean.HandleRead(new TypeHandlingContext(context)
{
TypeOwnerName = String.Format("var {0}", exists)
});
context.Builder.AppendFormat("if({0})", exists);
context.Builder.Append("{");
context.Builder.AppendFormat("var {0} = BitConverter.ToInt32(bytes, index);", lengthName);
context.Builder.Append("index += sizeof(Int32);");
context.Builder.AppendFormat("{0} = new {1}[{2}];", context.TypeOwnerName, valueType.GetPresentableName(context.PresentationLanguage), lengthName);
context.Builder.AppendFormat("if({0} > 0)", lengthName);
context.Builder.Append("{");
context.Builder.AppendFormat("for(Int32 {0} = 0; {0} < {1}; {0}++)", indexName, lengthName);
context.Builder.Append("{");
valueHandler.HandleRead(new TypeHandlingContext(context)
{
TypeOwnerName = String.Format("{0}[{1}]", context.TypeOwnerName, indexName),
Type = valueType,
TypeName = valueType.GetPresentableName(context.PresentationLanguage),
TypeOwner = context.TypeOwner
});
context.Builder.Append("}}}");
context.Variables.Dispose(Index);
context.Variables.Dispose(Length);
}
protected override 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);
ctx.Builder.Append("{");
ctx.Builder.Append("var index = startIndex;");
ctx.Builder.Append("Byte[] tmp;");
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.HandleRead(ctx);
}
}
}
ctx.Builder.Append("return index;");
ctx.Builder.Append("}");
IBlock body = factory.CreateBlock(ctx.Builder.ToString(), ctx.Args.ToArray());
declaration.SetBody(body);
}
