protected override void EmitWrite(ProtoBuf.Compiler.CompilerContext ctx, ProtoBuf.Compiler.Local valueFrom)
{
// int i and T[] arr
using (Compiler.Local arr = ctx.GetLocalWithValue(ExpectedType, valueFrom))
using (Compiler.Local i = new ProtoBuf.Compiler.Local(ctx, typeof(int)))
{
bool writePacked = (options & OPTIONS_WritePacked) != 0;
bool fixedLengthPacked = writePacked && CanUsePackedPrefix();
using (Compiler.Local token = (writePacked && !fixedLengthPacked) ? new Compiler.Local(ctx, typeof(SubItemToken)) : null)
{
Type mappedWriter = typeof(ProtoWriter);
if (writePacked)
{
ctx.LoadValue(fieldNumber);
ctx.LoadValue((int)WireType.String);
ctx.LoadWriter(true);
ctx.EmitCall(ProtoWriter.GetStaticMethod("WriteFieldHeader"));
if (fixedLengthPacked)
{
// write directly - no need for buffering
ctx.LoadLength(arr, false);
ctx.LoadValue((int)packedWireType);
ctx.LoadWriter(true);
ctx.EmitCall(ProtoWriter.GetStaticMethod("WritePackedPrefix"));
}
else
{
ctx.LoadValue(arr);
ctx.LoadWriter(true);
ctx.EmitCall(ProtoWriter.GetStaticMethod("StartSubItem"));
ctx.StoreValue(token);
}
ctx.LoadValue(fieldNumber);
ctx.LoadWriter(false);
ctx.EmitCall(mappedWriter.GetMethod("SetPackedField"));
}
EmitWriteArrayLoop(ctx, i, arr);
if (writePacked)
{
if (fixedLengthPacked)
{
ctx.LoadValue(fieldNumber);
ctx.LoadWriter(false);
ctx.EmitCall(mappedWriter.GetMethod("ClearPackedField"));
}
else
{
ctx.LoadValue(token);
ctx.LoadWriter(true);
ctx.EmitCall(ProtoWriter.GetStaticMethod("EndSubItem"));
}
}
}
}
}
protected override void EmitWrite(ProtoBuf.Compiler.CompilerContext ctx, ProtoBuf.Compiler.Local valueFrom)
{
using (Compiler.Local list = ctx.GetLocalWithValue(ExpectedType, valueFrom))
{
MethodInfo getEnumerator = GetEnumeratorInfo(out MethodInfo moveNext, out MethodInfo current);
Helpers.DebugAssert(moveNext != null);
Helpers.DebugAssert(current != null);
Helpers.DebugAssert(getEnumerator != null);
Type enumeratorType = getEnumerator.ReturnType;
bool writePacked = WritePacked;
using (Compiler.Local iter = new Compiler.Local(ctx, enumeratorType))
using (Compiler.Local token = writePacked ? new Compiler.Local(ctx, typeof(SubItemToken)) : null)
{
if (writePacked)
{
ctx.LoadValue(fieldNumber);
ctx.LoadValue((int)WireType.String);
ctx.LoadWriter(true);
ctx.EmitCall(ProtoWriter.GetStaticMethod("WriteFieldHeader"));
ctx.LoadValue(list);
ctx.LoadWriter(true);
ctx.EmitCall(ProtoWriter.GetStaticMethod("StartSubItem"));
ctx.StoreValue(token);
ctx.LoadValue(fieldNumber);
ctx.LoadWriter(false);
ctx.EmitCall(typeof(ProtoWriter).GetMethod("SetPackedField"));
}
ctx.LoadAddress(list, ExpectedType);
ctx.EmitCall(getEnumerator, ExpectedType);
ctx.StoreValue(iter);
using (ctx.Using(iter))
{
Compiler.CodeLabel body = ctx.DefineLabel(), next = ctx.DefineLabel();
ctx.Branch(next, false);
ctx.MarkLabel(body);
ctx.LoadAddress(iter, enumeratorType);
ctx.EmitCall(current, enumeratorType);
Type itemType = Tail.ExpectedType;
if (itemType != typeof(object) && current.ReturnType == typeof(object))
{
ctx.CastFromObject(itemType);
}
Tail.EmitWrite(ctx, null);
ctx.MarkLabel(@next);
ctx.LoadAddress(iter, enumeratorType);
ctx.EmitCall(moveNext, enumeratorType);
ctx.BranchIfTrue(body, false);
}
if (writePacked)
{
ctx.LoadValue(token);
ctx.LoadWriter(true);
ctx.EmitCall(ProtoWriter.GetStaticMethod("EndSubItem"));
}
}
}
}
