protected override bool CheckEmpty(SizeCounterMethodBuilderContext context, GroboIL.Label notEmptyLabel)
{
context.LoadObjByRef(); // stack: [&obj]
context.Il.Call(Type.GetProperty("HasValue").GetGetMethod()); // stack: obj.HasValue
context.Il.Brtrue(notEmptyLabel); // if(obj.HasValue) goto notEmpty;
return(true);
}
protected override void CountSizeNotEmpty(SizeCounterMethodBuilderContext context)
{
var il = context.Il;
il.Ldc_I4(9); // stack: [9 = size] 9 = type code + data length + array length
var doneLabel = il.DefineLabel("done");
context.LoadObjByRef(); // stack: [size, ref obj]
il.Ldfld(countField); // stack: [size, obj._count]
il.Brfalse(doneLabel); // if(obj._count == 0) goto done; stack: [size]
var i = il.DeclareLocal(typeof(int));
var end = il.DeclareLocal(typeof(int));
context.LoadObjByRef(); // stack: [size, ref obj]
il.Dup(); // stack: [size, ref obj, ref obj]
il.Ldfld(offsetField); // stack: [size, ref obj, obj._offset]
il.Stloc(i); // i = obj._offset; stack: [size, ref obj]
il.Ldfld(countField); // stack: [size, obj._count]
il.Ldloc(i); // stack: [size, obj._count, obj._offset]
il.Add(); // stack: [size, obj._count + obj._offset]
il.Stloc(end); // end = obj._count + obj._offset; stack: [size]
var array = il.DeclareLocal(elementType.MakeArrayType());
context.LoadObjByRef(); // stack: [size, ref obj]
il.Ldfld(arrayField); // stack: [size, obj._array]
il.Stloc(array); // array = obj._array; stack: [size]
var cycleStartLabel = il.DefineLabel("cycleStart");
il.MarkLabel(cycleStartLabel);
il.Ldloc(array); // stack: [size, array]
il.Ldloc(i); // stack: [size, array, i]
il.Ldelem(elementType); // stack: [size, array[i]]
il.Ldc_I4(1); // stack: [size, array[i], true]
context.LoadContext(); // stack: [size, array[i], true, context]
context.CallSizeCounter(elementType); // stack: [size, writer(array[i], true, context) = itemSize]
il.Add(); // stack: [size + itemSize]
il.Ldloc(end); // stack: [size, end]
il.Ldloc(i); // stack: [size, end, i]
il.Ldc_I4(1); // stack: [size, end, i, 1]
il.Add(); // stack: [size, end, i + 1]
il.Dup(); // stack: [size, end, i + 1, i + 1]
il.Stloc(i); // i = i + 1; stack: [size, end, i]
il.Bgt(cycleStartLabel, false); // if(end > i) goto cycleStart; stack: [size]
il.MarkLabel(doneLabel);
}
protected override void CountSizeNotEmpty(SizeCounterMethodBuilderContext context)
{
var il = context.Il;
il.Ldc_I4(5); // stack: [5 = size] 5 = type code + data length
context.LoadObjByRef(); // stack: [5, ref obj]
il.Ldfld(countField); // stack: [5, obj._count]
CountArraySize(elementType, il); // stack: [5, obj length]
il.Add(); // stack: [5 + obj length]
}
protected override void CountSizeNotEmpty(SizeCounterMethodBuilderContext context)
{
var il = context.Il;
context.LoadObjByRef(); // stack: [&obj]
il.Call(Type.GetProperty("Value").GetGetMethod()); // stack: [obj.Value]
context.LoadWriteEmpty(); // stack: [obj.Value, writeEmpty]
context.LoadContext(); // stack: [obj.Value, writeEmpty, context]
context.CallSizeCounter(Type.GetGenericArguments()[0]); // stack: [counter(obj.Value, writeEmpty, context)]
}
protected override bool CheckEmpty(SizeCounterMethodBuilderContext context, GroboIL.Label notEmptyLabel)
{
var il = context.Il;
context.LoadObjByRef(); // stack: [ref obj]
il.Ldfld(arrayField); // stack: [obj._array]
if (context.Context.GroBufWriter.Options.HasFlag(GroBufOptions.WriteEmptyObjects))
{
il.Brtrue(notEmptyLabel); // if(obj._array != null) goto notEmpty;
}
else
{
var emptyLabel = il.DefineLabel("empty");
il.Brfalse(emptyLabel); // if(obj._array == null) goto empty;
context.LoadObjByRef(); // stack: [ref obj]
il.Ldfld(countField); // stack: [obj._count]
il.Brtrue(notEmptyLabel); // if(obj._count != 0) goto notEmpty;
il.MarkLabel(emptyLabel);
}
return(true);
}
protected override void CountSizeNotEmpty(SizeCounterMethodBuilderContext context)
{
var il = context.Il;
il.Ldc_I4(0); // stack: [0 = size]
var dataMembers = context.Context.GetDataMembers(Type);
foreach (var member in dataMembers)
{
if (Type.IsValueType)
{
context.LoadObjByRef(); // stack: [size, ref obj]
}
else
{
context.LoadObj(); // stack: [size, obj]
}
Type memberType;
switch (member.Member.MemberType)
{
case MemberTypes.Property:
var property = (PropertyInfo)member.Member;
var getter = property.GetGetMethod(true);
if (getter == null)
{
throw new MissingMethodException(Type.Name, property.Name + "_get");
}
il.Call(getter, Type); // stack: [size, obj.prop]
memberType = property.PropertyType;
break;
case MemberTypes.Field:
var field = (FieldInfo)member.Member;
il.Ldfld(field); // stack: [size, obj.field]
memberType = field.FieldType;
break;
default:
throw new NotSupportedException("Data member of type " + member.Member.MemberType + " is not supported");
}
il.Ldc_I4(0); // stack: [size, obj.member, false]
context.LoadContext(); // stack: [size, obj.member, false, context]
context.CallSizeCounter(memberType); // stack: [size, writers[i](obj.member, false, context) = memberSize]
il.Dup(); // stack: [size, memberSize, memberSize]
var nextLabel = il.DefineLabel("next");
il.Brfalse(nextLabel); // if(memberSize = 0) goto next; stack: [size, memberSize]
il.Ldc_I4(8); // stack: [size, memberSize, 8]
il.Add(); // stack: [size, memberSize + 8]
il.MarkLabel(nextLabel);
il.Add(); // stack: [size + curSize]
}
if (!context.Context.GroBufWriter.Options.HasFlag(GroBufOptions.WriteEmptyObjects))
{
var countLengthLabel = il.DefineLabel("countLength");
il.Dup(); // stack: [size, size]
il.Brtrue(countLengthLabel); // if(size != 0) goto countLength; stack: [size]
il.Pop(); // stack: []
context.ReturnForNull();
il.Ret();
il.MarkLabel(countLengthLabel);
}
il.Ldc_I4(5); // stack: [size, 5]
il.Add(); // stack: [size + 5]
}
