private void GenerateFillDictionary(CollectionMetaToken collectionToken, Type dictionaryType, LocalBuilder objectIdLocal)
{
var countLocal = generator.DeclareLocal(typeof(Int32));
GenerateReadPrimitive(typeof(Int32));
generator.Emit(OpCodes.Stloc, countLocal); // read dictionary elements count
var addMethodArgumentTypes = new [] {
collectionToken.FormalKeyType,
collectionToken.FormalValueType
};
var addMethod = dictionaryType.GetMethod("Add", addMethodArgumentTypes) ??
dictionaryType.GetMethod("TryAdd", addMethodArgumentTypes);
if (addMethod == null)
{
throw new InvalidOperationException(string.Format(CouldNotFindAddErrorMessage, dictionaryType));
}
GeneratorHelper.GenerateLoop(generator, countLocal, lc =>
{
PushDeserializedObjectOntoStack(objectIdLocal);
generator.Emit(OpCodes.Castclass, dictionaryType);
GenerateReadField(collectionToken.FormalKeyType, false);
GenerateReadField(collectionToken.FormalValueType, false);
generator.Emit(OpCodes.Callvirt, addMethod);
if (addMethod.ReturnType != typeof(void))
{
generator.Emit(OpCodes.Pop); // remove returned unused value from stack
}
});
}
private static void GenerateFillCollection(ReaderGenerationContext context, Type elementFormalType, Type collectionType, LocalBuilder objectIdLocal)
{
var countLocal = context.Generator.DeclareLocal(typeof(int));
GenerateReadPrimitive(context, typeof(int));
context.Generator.StoreLocalValueFromStack(countLocal); // read collection elements count
var addMethod = collectionType.GetMethod("Add", new[] { elementFormalType }) ??
collectionType.GetMethod("Enqueue", new[] { elementFormalType }) ??
collectionType.GetMethod("Push", new[] { elementFormalType });
if (addMethod == null)
{
throw new InvalidOperationException(string.Format(CouldNotFindAddErrorMessage, collectionType));
}
if (collectionType == typeof(Stack) ||
(collectionType.IsGenericType && collectionType.GetGenericTypeDefinition() == typeof(Stack <>)))
{
var tempArrLocal = context.Generator.DeclareLocal(elementFormalType.MakeArrayType());
context.Generator.PushLocalValueOntoStack(countLocal);
context.Generator.Emit(OpCodes.Newarr, elementFormalType);
context.Generator.StoreLocalValueFromStack(tempArrLocal); // creates temporal array
GeneratorHelper.GenerateLoop(context, countLocal, cl =>
{
context.Generator.PushLocalValueOntoStack(tempArrLocal);
context.Generator.PushLocalValueOntoStack(cl);
GenerateReadField(context, elementFormalType, false);
context.Generator.Emit(OpCodes.Stelem, elementFormalType);
});
GeneratorHelper.GenerateLoop(context, countLocal, cl =>
{
context.PushDeserializedObjectOntoStack(objectIdLocal);
context.Generator.Emit(OpCodes.Castclass, collectionType);
context.Generator.PushLocalValueOntoStack(tempArrLocal);
context.Generator.PushLocalValueOntoStack(cl);
context.Generator.Emit(OpCodes.Ldelem, elementFormalType);
context.Generator.Emit(OpCodes.Callvirt, collectionType.GetMethod("Push"));
}, true);
}
else
{
GeneratorHelper.GenerateLoop(context, countLocal, cl =>
{
context.PushDeserializedObjectOntoStack(objectIdLocal);
context.Generator.Emit(OpCodes.Castclass, collectionType);
GenerateReadField(context, elementFormalType, false);
context.Generator.Emit(OpCodes.Callvirt, addMethod);
if (addMethod.ReturnType != typeof(void))
{
context.Generator.Emit(OpCodes.Pop); // remove returned unused value from stack
}
});
}
}
private static void GenerateReadDelegate(ReaderGenerationContext context, Type type, Action pushObjectIdOntoStackAction)
{
var invocationListLengthLocal = context.Generator.DeclareLocal(typeof(int));
var targetLocal = context.Generator.DeclareLocal(typeof(object));
GenerateReadPrimitive(context, typeof(int));
context.Generator.StoreLocalValueFromStack(invocationListLengthLocal);
GeneratorHelper.GenerateLoop(context, invocationListLengthLocal, cl =>
{
GenerateReadField(context, typeof(object));
context.Generator.StoreLocalValueFromStack(targetLocal);
GenerateReadMethod(context);
context.Generator.PushTypeOntoStack(type);
context.Generator.PushLocalValueOntoStack(targetLocal);
context.PushDeserializedObjectsCollectionOntoStack();
pushObjectIdOntoStackAction();
context.Generator.GenerateCodeCall <MethodInfo, Type, object, AutoResizingList <object>, int>((method, t, target, deserializedObjects, objectId) =>
{
var del = Delegate.CreateDelegate(t, target, method);
deserializedObjects[objectId] = Delegate.Combine((Delegate)deserializedObjects[objectId], del);
});
});
}
private void GenerateReadReadOnlyCollection(Type type, LocalBuilder objectIdLocal)
{
var elementFormalType = type.GetGenericArguments()[0];
var lengthLocal = generator.DeclareLocal(typeof(Int32));
var arrayLocal = generator.DeclareLocal(elementFormalType.MakeArrayType());
GenerateReadPrimitive(typeof(Int32));
generator.Emit(OpCodes.Stloc, lengthLocal); // read number of elements in the collection
generator.Emit(OpCodes.Ldloc, lengthLocal);
generator.Emit(OpCodes.Newarr, elementFormalType);
generator.Emit(OpCodes.Stloc, arrayLocal); // create array
GeneratorHelper.GenerateLoop(generator, lengthLocal, lc =>
{
generator.Emit(OpCodes.Ldloc, arrayLocal);
generator.Emit(OpCodes.Ldloc, lc);
GenerateReadField(elementFormalType);
generator.Emit(OpCodes.Stelem, elementFormalType);
});
SaveNewDeserializedObject(objectIdLocal, () =>
{
generator.Emit(OpCodes.Ldloc, arrayLocal);
generator.Emit(OpCodes.Castclass, typeof(IList <>).MakeGenericType(elementFormalType));
generator.Emit(OpCodes.Newobj, type.GetConstructor(new [] { typeof(IList <>).MakeGenericType(elementFormalType) }));
});
}
private void GenerateReadDelegate(Type type, LocalBuilder objectIdLocal)
{
var invocationListLengthLocal = generator.DeclareLocal(typeof(Int32));
var targetLocal = generator.DeclareLocal(typeof(object));
GenerateReadPrimitive(typeof(Int32));
generator.Emit(OpCodes.Stloc, invocationListLengthLocal);
GeneratorHelper.GenerateLoop(generator, invocationListLengthLocal, cl =>
{
GenerateReadField(typeof(object));
generator.Emit(OpCodes.Stloc, targetLocal);
GenerateReadMethod();
PushTypeOntoStack(type);
generator.Emit(OpCodes.Ldloc, targetLocal);
PushDeserializedObjectsCollectionOntoStack();
generator.Emit(OpCodes.Ldloc, objectIdLocal);
GenerateCodeCall <MethodInfo, Type, object, AutoResizingList <object>, int>((method, t, target, deserializedObjects, objectId) =>
{
var del = Delegate.CreateDelegate(t, target, method);
deserializedObjects[objectId] = Delegate.Combine((Delegate)deserializedObjects[objectId], del);
});
});
}
private static void GenerateWriteArray(WriterGenerationContext context, Variable arrayLocal, Type actualType)
{
var rank = actualType.GetArrayRank();
if (rank != 1)
{
GenerateWriteMultidimensionalArray(context, arrayLocal, actualType, rank);
return;
}
var elementType = actualType.GetElementType();
var currentElementLocal = context.Generator.DeclareLocal(elementType);
var lengthLocal = context.Generator.DeclareLocal(typeof(int));
var currentElementVariable = new Variable(currentElementLocal);
context.Generator.PushVariableOntoStack(arrayLocal);
context.Generator.Emit(OpCodes.Ldlen);
context.Generator.StoreLocalValueFromStack(lengthLocal);
GeneratorHelper.GenerateLoop(context, lengthLocal, c =>
{
context.Generator.PushVariableOntoStack(arrayLocal);
context.Generator.PushLocalValueOntoStack(c);
context.Generator.Emit(OpCodes.Ldelem, elementType);
context.Generator.StoreLocalValueFromStack(currentElementLocal);
GenerateWriteField(context, currentElementVariable, elementType);
});
}
private static void GenerateWriteDelegate(WriterGenerationContext context, Variable valueLocal)
{
var array = context.Generator.DeclareLocal(typeof(Delegate[]));
var loopLength = context.Generator.DeclareLocal(typeof(int));
var element = context.Generator.DeclareLocal(typeof(Delegate));
var delegateTargetLocal = context.Generator.DeclareLocal(typeof(object));
var delegateTargetVariable = new Variable(delegateTargetLocal);
context.PushPrimitiveWriterOntoStack();
context.PushObjectWriterOntoStack();
context.Generator.PushVariableOntoStack(valueLocal);
context.Generator.Call <ObjectWriter>(x => x.GetDelegatesWithNonTransientTargets(null));
context.Generator.Emit(OpCodes.Castclass, typeof(Delegate[]));
context.Generator.Emit(OpCodes.Dup);
context.Generator.StoreLocalValueFromStack(array);
// array refrence should be on the top of stack here
context.Generator.Emit(OpCodes.Ldlen);
context.Generator.Emit(OpCodes.Dup);
context.Generator.StoreLocalValueFromStack(loopLength);
// primitive writer should be on the stack
// array length should be on the stack
context.Generator.Call <PrimitiveWriter>(x => x.Write(0));
GeneratorHelper.GenerateLoop(context, loopLength, c =>
{
context.Generator.PushLocalValueOntoStack(array);
context.Generator.PushLocalValueOntoStack(c);
context.Generator.Emit(OpCodes.Ldelem, element.LocalType);
context.Generator.Emit(OpCodes.Dup);
context.Generator.StoreLocalValueFromStack(element);
// element reference should be on the stack
context.Generator.PushPropertyValueOntoStack <MulticastDelegate, object>(x => x.Target);
context.Generator.StoreLocalValueFromStack(delegateTargetLocal);
GenerateWriteDeferredReference(context, delegateTargetVariable, typeof(object));
context.PushObjectWriterOntoStack();
context.Generator.PushPropertyValueOntoStack <ObjectWriter, IdentifiedElementsDictionary <MethodDescriptor> >(x => x.Methods);
context.Generator.PushLocalValueOntoStack(element);
context.Generator.PushPropertyValueOntoStack <MulticastDelegate, MethodInfo>(x => x.Method);
context.Generator.Emit(OpCodes.Newobj, Helpers.GetConstructorInfo <MethodDescriptor>(typeof(MethodInfo)));
context.Generator.Call <IdentifiedElementsDictionary <MethodDescriptor> >(x => x.TouchAndWriteId(null));
context.Generator.Emit(OpCodes.Pop);
});
}
private static void GenerateArrayWriteLoop(WriterGenerationContext context, int currentDimension, int rank, LocalBuilder[] indexLocals, LocalBuilder[] lengthLocals, Variable arrayLocal, Variable currentElementVariable, Type arrayType, Type elementType)
{
GeneratorHelper.GenerateLoop(context, lengthLocals[currentDimension], indexLocals[currentDimension], () =>
{
if (currentDimension == rank - 1)
{
context.Generator.PushVariableOntoStack(arrayLocal);
for (var i = 0; i < rank; i++)
{
context.Generator.PushLocalValueOntoStack(indexLocals[i]);
}
// jeśli to nie zadziała to użyć:
context.Generator.Emit(OpCodes.Call, arrayType.GetMethod("Get"));
context.Generator.StoreVariableValueFromStack(currentElementVariable);
GenerateWriteField(context, currentElementVariable, elementType);
}
else
{
GenerateArrayWriteLoop(context, currentDimension + 1, rank, indexLocals, lengthLocals, arrayLocal, currentElementVariable, arrayType, elementType);
}
});
}
private static void GenerateReadArray(ReaderGenerationContext context, Type arrayType, Action pushObjectIdOntoStackAction)
{
var isMultidimensional = arrayType.GetArrayRank() > 1;
var elementFormalType = arrayType.GetElementType();
var rankLocal = context.Generator.DeclareLocal(typeof(int));
var lengthsLocal = isMultidimensional ? context.Generator.DeclareLocal(typeof(int[])) : context.Generator.DeclareLocal(typeof(int));
var arrayLocal = context.Generator.DeclareLocal(typeof(Array));
var positionLocal = isMultidimensional ? context.Generator.DeclareLocal(typeof(int[])) : context.Generator.DeclareLocal(typeof(int));
var loopControlLocal = context.Generator.DeclareLocal(typeof(int)); // type is int not bool to reuse array length directly
var loopBeginLabel = context.Generator.DefineLabel();
var loopEndLabel = context.Generator.DefineLabel();
var nonZeroLengthLabel = context.Generator.DefineLabel();
context.PushDeserializedObjectOntoStack(pushObjectIdOntoStackAction);
context.Generator.Emit(OpCodes.Castclass, typeof(Array));
context.Generator.Emit(OpCodes.Dup);
context.Generator.StoreLocalValueFromStack(arrayLocal);
context.Generator.PushPropertyValueOntoStack <Array, int>(x => x.Rank);
context.Generator.StoreLocalValueFromStack(rankLocal);
if (isMultidimensional)
{
context.Generator.Emit(OpCodes.Ldc_I4_1);
context.Generator.StoreLocalValueFromStack(loopControlLocal);
context.Generator.PushLocalValueOntoStack(rankLocal);
context.Generator.Emit(OpCodes.Newarr, typeof(int));
context.Generator.StoreLocalValueFromStack(lengthsLocal); // create an array for keeping the lengths of each dimension
GeneratorHelper.GenerateLoop(context, rankLocal, i =>
{
context.Generator.PushLocalValueOntoStack(lengthsLocal);
context.Generator.PushLocalValueOntoStack(i);
context.Generator.PushLocalValueOntoStack(arrayLocal);
context.Generator.PushLocalValueOntoStack(i);
context.Generator.Call <Array>(x => x.GetLength(0));
context.Generator.Emit(OpCodes.Dup);
context.Generator.Emit(OpCodes.Brtrue, nonZeroLengthLabel);
context.Generator.Emit(OpCodes.Ldc_I4_0);
context.Generator.StoreLocalValueFromStack(loopControlLocal);
context.Generator.MarkLabel(nonZeroLengthLabel);
context.Generator.Emit(OpCodes.Stelem, typeof(int)); // populate the lengths with values read from stream
});
}
else
{
context.Generator.PushLocalValueOntoStack(arrayLocal);
context.Generator.Emit(OpCodes.Ldc_I4_0);
context.Generator.Call <Array>(x => x.GetLength(0));
context.Generator.Emit(OpCodes.Dup);
context.Generator.StoreLocalValueFromStack(lengthsLocal);
context.Generator.StoreLocalValueFromStack(loopControlLocal);
}
if (isMultidimensional)
{
context.Generator.PushLocalValueOntoStack(rankLocal);
context.Generator.Emit(OpCodes.Newarr, typeof(int));
context.Generator.StoreLocalValueFromStack(positionLocal); // create an array for keeping the current position of each dimension
}
context.Generator.MarkLabel(loopBeginLabel);
context.Generator.PushLocalValueOntoStack(loopControlLocal);
context.Generator.Emit(OpCodes.Brfalse, loopEndLabel);
context.Generator.PushLocalValueOntoStack(arrayLocal);
context.Generator.Emit(OpCodes.Castclass, arrayType);
if (isMultidimensional)
{
GenerateReadField(context, elementFormalType);
context.Generator.PushLocalValueOntoStack(positionLocal);
context.Generator.Emit(OpCodes.Call, Helpers.GetMethodInfo <Array>(a => a.SetValue(null, new int[0])));
}
else
{
context.Generator.PushLocalValueOntoStack(positionLocal);
context.Generator.Emit(OpCodes.Ldelema, elementFormalType);
GenerateReadField(context, elementFormalType, false);
context.Generator.Emit(OpCodes.Stobj, elementFormalType);
}
if (isMultidimensional)
{
context.Generator.PushLocalValueOntoStack(positionLocal);
context.Generator.PushLocalValueOntoStack(lengthsLocal);
context.Generator.PushLocalValueOntoStack(rankLocal);
context.Generator.GenerateCodeFCall <int[], int[], int, bool>(GenerateReadArrayStaticHelper);
}
else
{
context.Generator.PushLocalValueOntoStack(positionLocal);
context.Generator.Emit(OpCodes.Ldc_I4_1);
context.Generator.Emit(OpCodes.Add);
context.Generator.Emit(OpCodes.Dup);
context.Generator.StoreLocalValueFromStack(positionLocal);
context.Generator.PushLocalValueOntoStack(lengthsLocal);
context.Generator.Emit(OpCodes.Clt);
}
context.Generator.StoreLocalValueFromStack(loopControlLocal);
context.Generator.Emit(OpCodes.Br, loopBeginLabel);
context.Generator.MarkLabel(loopEndLabel);
}
protected override void InnerGenerate(ReaderGenerationContext context)
{
var finish = context.Generator.DefineLabel();
var createdLocal = context.Generator.DeclareLocal(typeof(object));
context.PushObjectIdOntoStack();
context.PushDeserializedObjectsCollectionOntoStack();
context.Generator.PushPropertyValueOntoStack <AutoResizingList <object>, int>(x => x.Count);
context.Generator.Emit(OpCodes.Blt, finish);
if (CreateObjectGenerator.TryFillBody(context.Generator, type, treatCollectionAsUserObject))
{
context.Generator.StoreLocalValueFromStack(createdLocal);
context.PushObjectReaderOntoStack();
context.PushObjectIdOntoStack();
context.Generator.PushLocalValueOntoStack(createdLocal);
context.Generator.Call <ObjectReader>(x => x.SetObjectByReferenceId(0, null));
}
else if (type.IsArray)
{
var isMultidimensional = type.GetArrayRank() > 1;
var elementFormalType = type.GetElementType();
var rankLocal = context.Generator.DeclareLocal(typeof(int));
var lengthsLocal = isMultidimensional ? context.Generator.DeclareLocal(typeof(int[])) : context.Generator.DeclareLocal(typeof(int));
context.PushObjectReaderOntoStack();
context.PushObjectIdOntoStack();
ReadMethodGenerator.GenerateReadPrimitive(context, typeof(int));
context.Generator.StoreLocalValueFromStack(rankLocal);
if (isMultidimensional)
{
context.Generator.PushLocalValueOntoStack(rankLocal);
context.Generator.Emit(OpCodes.Newarr, typeof(int));
context.Generator.StoreLocalValueFromStack(lengthsLocal); // create an array for keeping the lengths of each dimension
GeneratorHelper.GenerateLoop(context, rankLocal, i =>
{
context.Generator.PushLocalValueOntoStack(lengthsLocal);
context.Generator.PushLocalValueOntoStack(i);
ReadMethodGenerator.GenerateReadPrimitive(context, typeof(int));
context.Generator.Emit(OpCodes.Stelem, typeof(int)); // populate the lengths with values read from stream
});
}
else
{
ReadMethodGenerator.GenerateReadPrimitive(context, typeof(int));
context.Generator.StoreLocalValueFromStack(lengthsLocal);
}
context.Generator.PushTypeOntoStack(elementFormalType);
context.Generator.PushLocalValueOntoStack(lengthsLocal);
if (isMultidimensional)
{
context.Generator.Call(() => Array.CreateInstance(null, new int[0]));
}
else
{
context.Generator.Call(() => Array.CreateInstance(null, 0));
}
context.Generator.Call <ObjectReader>(x => x.SetObjectByReferenceId(0, null));
}
else if (type == typeof(string))
{
context.PushObjectReaderOntoStack();
context.PushObjectIdOntoStack();
ReadMethodGenerator.GenerateReadPrimitive(context, typeof(string));
context.Generator.Call <ObjectReader>(x => x.SetObjectByReferenceId(0, null));
var field = Helpers.GetFieldInfo <ObjectReader, int>(x => x.objectsWrittenInlineCount);
context.PushObjectReaderOntoStack();
context.Generator.Emit(OpCodes.Dup);
context.Generator.Emit(OpCodes.Ldfld, field);
context.Generator.PushIntegerOntoStack(1);
context.Generator.Emit(OpCodes.Add);
context.Generator.Emit(OpCodes.Stfld, field);
}
else
{
ReadMethodGenerator.GenerateReadNotPrecreated(context, type, context.PushObjectIdOntoStack);
var field = Helpers.GetFieldInfo <ObjectReader, int>(x => x.objectsWrittenInlineCount);
context.PushObjectReaderOntoStack();
context.Generator.Emit(OpCodes.Dup);
context.Generator.Emit(OpCodes.Ldfld, field);
context.Generator.PushIntegerOntoStack(1);
context.Generator.Emit(OpCodes.Add);
context.Generator.Emit(OpCodes.Stfld, field);
}
context.Generator.MarkLabel(finish);
}
private void GenerateReadArray(Type elementFormalType, LocalBuilder objectIdLocal)
{
var rankLocal = generator.DeclareLocal(typeof(Int32));
var lengthsLocal = generator.DeclareLocal(typeof(Int32[]));
var arrayLocal = generator.DeclareLocal(typeof(Array));
var positionLocal = generator.DeclareLocal(typeof(Int32[]));
var loopControlLocal = generator.DeclareLocal(typeof(bool));
var loopBeginLabel = generator.DefineLabel();
var loopEndLabel = generator.DefineLabel();
var lengthIsZeroLabel = generator.DefineLabel();
var isNotEmptyArrayLocal = generator.DeclareLocal(typeof(bool));
GenerateReadPrimitive(typeof(Int32));
generator.Emit(OpCodes.Stloc, rankLocal); // read amount of dimensions of the array
generator.Emit(OpCodes.Ldloc, rankLocal);
generator.Emit(OpCodes.Newarr, typeof(Int32));
generator.Emit(OpCodes.Stloc, lengthsLocal); // create an array for keeping the lengths of each dimension
GeneratorHelper.GenerateLoop(generator, rankLocal, i =>
{
generator.Emit(OpCodes.Ldloc, lengthsLocal);
generator.Emit(OpCodes.Ldloc, i);
GenerateReadPrimitive(typeof(Int32));
generator.Emit(OpCodes.Dup);
generator.Emit(OpCodes.Brfalse, lengthIsZeroLabel);
generator.Emit(OpCodes.Ldc_I4_1);
generator.Emit(OpCodes.Stloc, isNotEmptyArrayLocal);
generator.MarkLabel(lengthIsZeroLabel);
generator.Emit(OpCodes.Stelem, typeof(Int32)); // populate the lengths with values read from stream
});
PushTypeOntoStack(elementFormalType);
generator.Emit(OpCodes.Ldloc, lengthsLocal);
generator.Emit(OpCodes.Call, Helpers.GetMethodInfo <Array>(x => Array.CreateInstance(null, new int[0])));
generator.Emit(OpCodes.Stloc, arrayLocal); // create an multidimensional array
SaveNewDeserializedObject(objectIdLocal, () =>
{
generator.Emit(OpCodes.Ldloc, arrayLocal);
}); // store created array to deserialized obejcts collection
generator.Emit(OpCodes.Ldloc, rankLocal);
generator.Emit(OpCodes.Newarr, typeof(Int32));
generator.Emit(OpCodes.Stloc, positionLocal); // create an array for keeping the current position of each dimension
generator.Emit(OpCodes.Ldloc, isNotEmptyArrayLocal);
generator.Emit(OpCodes.Stloc, loopControlLocal); // initialize loop control variable
generator.MarkLabel(loopBeginLabel);
generator.Emit(OpCodes.Ldloc, loopControlLocal);
generator.Emit(OpCodes.Brfalse, loopEndLabel);
generator.Emit(OpCodes.Ldloc, arrayLocal);
GenerateReadField(elementFormalType, true);
generator.Emit(OpCodes.Ldloc, positionLocal);
generator.Emit(OpCodes.Call, Helpers.GetMethodInfo <Array>(a => a.SetValue(null, new int[0])));
generator.Emit(OpCodes.Ldloc, positionLocal);
generator.Emit(OpCodes.Ldloc, lengthsLocal);
generator.Emit(OpCodes.Ldloc, rankLocal);
GenerateCodeFCall <int[], int[], int, bool>((counter, sizes, ranks) =>
{
var currentRank = ranks - 1;
while (currentRank >= 0)
{
counter[currentRank]++;
if (counter[currentRank] < sizes[currentRank])
{
return(true);
}
counter[currentRank] = 0;
currentRank--;
}
return(false);
});
generator.Emit(OpCodes.Stloc, loopControlLocal);
generator.Emit(OpCodes.Br, loopBeginLabel);
generator.MarkLabel(loopEndLabel);
}
private void GenerateReadArray(Type arrayType, LocalBuilder objectIdLocal)
{
var isMultidimensional = arrayType.GetArrayRank() > 1;
var elementFormalType = arrayType.GetElementType();
var rankLocal = generator.DeclareLocal(typeof(Int32));
var lengthsLocal = isMultidimensional ? generator.DeclareLocal(typeof(Int32[])) : generator.DeclareLocal(typeof(Int32));
var arrayLocal = generator.DeclareLocal(typeof(Array));
var positionLocal = isMultidimensional ? generator.DeclareLocal(typeof(Int32[])) : generator.DeclareLocal(typeof(Int32));
var loopControlLocal = generator.DeclareLocal(typeof(int)); // type is int not bool to reuse array length directly
var loopBeginLabel = generator.DefineLabel();
var loopEndLabel = generator.DefineLabel();
var nonZeroLengthLabel = generator.DefineLabel();
GenerateReadPrimitive(typeof(Int32));
generator.Emit(OpCodes.Stloc, rankLocal); // read amount of dimensions of the array
if (isMultidimensional)
{
generator.Emit(OpCodes.Ldc_I4_1);
generator.Emit(OpCodes.Stloc, loopControlLocal);
generator.Emit(OpCodes.Ldloc, rankLocal);
generator.Emit(OpCodes.Newarr, typeof(Int32));
generator.Emit(OpCodes.Stloc, lengthsLocal); // create an array for keeping the lengths of each dimension
GeneratorHelper.GenerateLoop(generator, rankLocal, i =>
{
generator.Emit(OpCodes.Ldloc, lengthsLocal);
generator.Emit(OpCodes.Ldloc, i);
GenerateReadPrimitive(typeof(Int32));
generator.Emit(OpCodes.Dup);
generator.Emit(OpCodes.Brtrue, nonZeroLengthLabel);
generator.Emit(OpCodes.Ldc_I4_0);
generator.Emit(OpCodes.Stloc, loopControlLocal);
generator.MarkLabel(nonZeroLengthLabel);
generator.Emit(OpCodes.Stelem, typeof(Int32)); // populate the lengths with values read from stream
});
}
else
{
GenerateReadPrimitive(typeof(Int32));
generator.Emit(OpCodes.Dup);
generator.Emit(OpCodes.Stloc, lengthsLocal);
generator.Emit(OpCodes.Stloc, loopControlLocal);
}
PushTypeOntoStack(elementFormalType);
if (isMultidimensional)
{
generator.Emit(OpCodes.Ldloc, lengthsLocal);
generator.Emit(OpCodes.Call, Helpers.GetMethodInfo <Array>(x => Array.CreateInstance(null, new int[0])));
generator.Emit(OpCodes.Stloc, arrayLocal); // create an multidimensional array
}
else
{
generator.Emit(OpCodes.Ldloc, lengthsLocal);
generator.Emit(OpCodes.Call, Helpers.GetMethodInfo <Array>(x => Array.CreateInstance(null, 0)));
generator.Emit(OpCodes.Stloc, arrayLocal); // create a one dimensional array
}
SaveNewDeserializedObject(objectIdLocal, () =>
{
generator.Emit(OpCodes.Ldloc, arrayLocal);
}); // store created array to deserialized obejcts collection
if (isMultidimensional)
{
generator.Emit(OpCodes.Ldloc, rankLocal);
generator.Emit(OpCodes.Newarr, typeof(Int32));
generator.Emit(OpCodes.Stloc, positionLocal); // create an array for keeping the current position of each dimension
}
generator.MarkLabel(loopBeginLabel);
generator.Emit(OpCodes.Ldloc, loopControlLocal);
generator.Emit(OpCodes.Brfalse, loopEndLabel);
generator.Emit(OpCodes.Ldloc, arrayLocal);
generator.Emit(OpCodes.Castclass, arrayType);
if (isMultidimensional)
{
GenerateReadField(elementFormalType);
generator.Emit(OpCodes.Ldloc, positionLocal);
generator.Emit(OpCodes.Call, Helpers.GetMethodInfo <Array>(a => a.SetValue(null, new int[0])));
}
else
{
generator.Emit(OpCodes.Ldloc, positionLocal);
generator.Emit(OpCodes.Ldelema, elementFormalType);
GenerateReadField(elementFormalType, false);
generator.Emit(OpCodes.Stobj, elementFormalType);
}
if (isMultidimensional)
{
generator.Emit(OpCodes.Ldloc, positionLocal);
generator.Emit(OpCodes.Ldloc, lengthsLocal);
generator.Emit(OpCodes.Ldloc, rankLocal);
GenerateCodeFCall <int[], int[], int, bool>((counter, sizes, ranks) =>
{
var currentRank = ranks - 1;
while (currentRank >= 0)
{
counter[currentRank]++;
if (counter[currentRank] < sizes[currentRank])
{
return(true);
}
counter[currentRank] = 0;
currentRank--;
}
return(false);
});
}
else
{
generator.Emit(OpCodes.Ldloc, positionLocal);
generator.Emit(OpCodes.Ldc_I4_1);
generator.Emit(OpCodes.Add);
generator.Emit(OpCodes.Dup);
generator.Emit(OpCodes.Stloc, positionLocal);
generator.Emit(OpCodes.Ldloc, lengthsLocal);
generator.Emit(OpCodes.Clt);
}
generator.Emit(OpCodes.Stloc, loopControlLocal);
generator.Emit(OpCodes.Br, loopBeginLabel);
generator.MarkLabel(loopEndLabel);
}