public void StoreObject(Type type)
{
if (Index == null)
{
return;
}
if (type.IsValueType)
{
throw new InvalidOperationException("A reference type expected");
}
// Store in array of all references
LoadContext(); // stack: [context]
Il.Ldfld(ReaderContext.ObjectsField); // stack: [context.objects]
var doneLabel = Il.DefineLabel("done");
Il.Brfalse(doneLabel); // if(context.objects == null) goto done; stack: []
LoadContext(); // stack: [context]
Il.Ldfld(ReaderContext.ObjectsField); // stack: [context.objects]
Il.Ldloc(Index); // stack: [context.objects, index]
LoadResult(type); // stack: [context.objects, index, result]
Il.Call(HackHelpers.GetMethodDefinition <Dictionary <int, object> >(dict => dict.Add(0, null))); // context.objects.Add(index, result)
Il.MarkLabel(doneLabel);
}
/// <summary>
/// Loads the specified field onto the evaluation stack
/// </summary>
/// <param name="field">Field to load</param>
public void LoadField(FieldInfo field)
{
Il.Ldfld(field);
}
/// <summary>
/// Loads <c>context.serializerId</c> onto the evaluation stack
/// </summary>
public void LoadSerializerId()
{
LoadContext();
Il.Ldfld(ReaderContext.SerializerIdField);
}
/// <summary>
/// Loads <c>dataLength</c> onto the evaluation stack
/// </summary>
public void LoadDataLength()
{
LoadContext();
Il.Ldfld(ReaderContext.LengthField);
}
public void EmitMemberAccess(Type type, MemberInfo member, ResultType whatReturn, out Type memberType)
{
switch (member.MemberType)
{
case MemberTypes.Property:
var property = (PropertyInfo)member;
var getter = property.GetGetMethod(SkipVisibility);
if (getter == null)
{
throw new MissingMemberException(member.DeclaringType.Name, member.Name + "_get");
}
Il.Call(getter, type);
Type propertyType = property.PropertyType;
switch (whatReturn)
{
case ResultType.ByRefValueTypesOnly:
if (!propertyType.IsValueType)
{
memberType = propertyType;
}
else
{
using (var temp = DeclareLocal(propertyType))
{
Il.Stloc(temp);
Il.Ldloca(temp);
memberType = propertyType.MakeByRefType();
}
}
break;
case ResultType.ByRefAll:
throw new InvalidOperationException("It's wierd to load a property by ref for a reference type");
default:
memberType = propertyType;
break;
}
break;
case MemberTypes.Field:
var field = (FieldInfo)member;
switch (whatReturn)
{
case ResultType.ByRefAll:
Il.Ldflda(field);
memberType = field.FieldType.MakeByRefType();
break;
case ResultType.ByRefValueTypesOnly:
if (field.FieldType.IsValueType)
{
Il.Ldflda(field);
memberType = field.FieldType.MakeByRefType();
}
else
{
Il.Ldfld(field);
memberType = field.FieldType;
}
break;
default:
Il.Ldfld(field);
memberType = field.FieldType;
break;
}
break;
default:
throw new NotSupportedException("Member type '" + member.MemberType + "' is not supported");
}
}
/// <summary>
/// Loads <c>length</c> onto the evaluation stack
/// </summary>
public void LoadResultLength()
{
LoadContext();
Il.Ldfld(WriterContext.LengthField);
}