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1508 lines
57 KiB
1508 lines
57 KiB
3 years ago
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#if FEAT_COMPILER
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//#define DEBUG_COMPILE
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using System;
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using System.Threading;
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using ProtoBuf.Meta;
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using ProtoBuf.Serializers;
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#if FEAT_IKVM
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using Type = IKVM.Reflection.Type;
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using IKVM.Reflection;
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using IKVM.Reflection.Emit;
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#else
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using System.Reflection;
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using System.Reflection.Emit;
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#endif
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namespace ProtoBuf.Compiler
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{
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internal struct CodeLabel
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{
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public readonly Label Value;
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public readonly int Index;
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public CodeLabel(Label value, int index)
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{
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this.Value = value;
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this.Index = index;
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}
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}
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internal sealed class CompilerContext
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{
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public TypeModel Model { get { return model; } }
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#if !(FX11 || FEAT_IKVM)
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readonly DynamicMethod method;
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static int next;
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#endif
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internal CodeLabel DefineLabel()
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{
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CodeLabel result = new CodeLabel(il.DefineLabel(), nextLabel++);
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return result;
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}
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#if DEBUG_COMPILE
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static readonly string traceCompilePath;
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static CompilerContext()
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{
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traceCompilePath = System.IO.Path.Combine(System.IO.Directory.GetCurrentDirectory(),
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"TraceCompile.txt");
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Console.WriteLine("DEBUG_COMPILE enabled; writing to " + traceCompilePath);
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}
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#endif
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[System.Diagnostics.Conditional("DEBUG_COMPILE")]
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private void TraceCompile(string value)
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{
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#if DEBUG_COMPILE
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if (!string.IsNullOrWhiteSpace(value))
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{
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using (System.IO.StreamWriter sw = System.IO.File.AppendText(traceCompilePath))
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{
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sw.WriteLine(value);
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}
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}
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#endif
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}
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internal void MarkLabel(CodeLabel label)
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{
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il.MarkLabel(label.Value);
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TraceCompile("#: " + label.Index);
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}
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#if !(FX11 || FEAT_IKVM)
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public static ProtoSerializer BuildSerializer(IProtoSerializer head, TypeModel model)
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{
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Type type = head.ExpectedType;
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try
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{
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CompilerContext ctx = new CompilerContext(type, true, true, model, typeof(object));
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ctx.LoadValue(ctx.InputValue);
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ctx.CastFromObject(type);
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ctx.WriteNullCheckedTail(type, head, null);
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ctx.Emit(OpCodes.Ret);
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return (ProtoSerializer)ctx.method.CreateDelegate(
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typeof(ProtoSerializer));
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}
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catch (Exception ex)
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{
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string name = type.FullName;
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if(string.IsNullOrEmpty(name)) name = type.Name;
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throw new InvalidOperationException("It was not possible to prepare a serializer for: " + name, ex);
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}
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}
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/*public static ProtoCallback BuildCallback(IProtoTypeSerializer head)
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{
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Type type = head.ExpectedType;
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CompilerContext ctx = new CompilerContext(type, true, true);
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using (Local typedVal = new Local(ctx, type))
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{
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ctx.LoadValue(Local.InputValue);
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ctx.CastFromObject(type);
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ctx.StoreValue(typedVal);
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CodeLabel[] jumpTable = new CodeLabel[4];
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for(int i = 0 ; i < jumpTable.Length ; i++) {
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jumpTable[i] = ctx.DefineLabel();
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}
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ctx.LoadReaderWriter();
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ctx.Switch(jumpTable);
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ctx.Return();
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for(int i = 0 ; i < jumpTable.Length ; i++) {
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ctx.MarkLabel(jumpTable[i]);
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if (head.HasCallbacks((TypeModel.CallbackType)i))
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{
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head.EmitCallback(ctx, typedVal, (TypeModel.CallbackType)i);
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}
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ctx.Return();
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}
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}
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ctx.Emit(OpCodes.Ret);
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return (ProtoCallback)ctx.method.CreateDelegate(
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typeof(ProtoCallback));
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}*/
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public static ProtoDeserializer BuildDeserializer(IProtoSerializer head, TypeModel model)
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{
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Type type = head.ExpectedType;
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CompilerContext ctx = new CompilerContext(type, false, true, model, typeof(object));
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using (Local typedVal = new Local(ctx, type))
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{
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if (!Helpers.IsValueType(type))
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{
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ctx.LoadValue(ctx.InputValue);
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ctx.CastFromObject(type);
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ctx.StoreValue(typedVal);
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}
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else
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{
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ctx.LoadValue(ctx.InputValue);
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CodeLabel notNull = ctx.DefineLabel(), endNull = ctx.DefineLabel();
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ctx.BranchIfTrue(notNull, true);
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ctx.LoadAddress(typedVal, type);
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ctx.EmitCtor(type);
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ctx.Branch(endNull, true);
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ctx.MarkLabel(notNull);
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ctx.LoadValue(ctx.InputValue);
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ctx.CastFromObject(type);
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ctx.StoreValue(typedVal);
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ctx.MarkLabel(endNull);
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}
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head.EmitRead(ctx, typedVal);
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if (head.ReturnsValue) {
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ctx.StoreValue(typedVal);
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}
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ctx.LoadValue(typedVal);
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ctx.CastToObject(type);
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}
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ctx.Emit(OpCodes.Ret);
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return (ProtoDeserializer)ctx.method.CreateDelegate(
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typeof(ProtoDeserializer));
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}
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#endif
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internal void Return()
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{
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Emit(OpCodes.Ret);
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}
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static bool IsObject(Type type)
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{
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#if FEAT_IKVM
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return type.FullName == "System.Object";
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#else
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return type == typeof(object);
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#endif
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}
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internal void CastToObject(Type type)
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{
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if(IsObject(type))
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{ }
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else if (Helpers.IsValueType(type))
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{
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il.Emit(OpCodes.Box, type);
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TraceCompile(OpCodes.Box + ": " + type);
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}
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else
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{
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il.Emit(OpCodes.Castclass, MapType(typeof(object)));
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TraceCompile(OpCodes.Castclass + ": " + type);
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}
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}
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internal void CastFromObject(Type type)
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{
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if (IsObject(type))
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{ }
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else if (Helpers.IsValueType(type))
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{
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switch (MetadataVersion)
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{
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case ILVersion.Net1:
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il.Emit(OpCodes.Unbox, type);
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il.Emit(OpCodes.Ldobj, type);
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TraceCompile(OpCodes.Unbox + ": " + type);
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TraceCompile(OpCodes.Ldobj + ": " + type);
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break;
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default:
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#if FX11
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throw new NotSupportedException();
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#else
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il.Emit(OpCodes.Unbox_Any, type);
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TraceCompile(OpCodes.Unbox_Any + ": " + type);
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break;
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#endif
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}
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}
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else
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{
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il.Emit(OpCodes.Castclass, type);
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TraceCompile(OpCodes.Castclass + ": " + type);
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}
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}
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private readonly bool isStatic;
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#if !SILVERLIGHT
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private readonly RuntimeTypeModel.SerializerPair[] methodPairs;
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internal MethodBuilder GetDedicatedMethod(int metaKey, bool read)
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{
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if (methodPairs == null) return null;
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// but if we *do* have pairs, we demand that we find a match...
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for (int i = 0; i < methodPairs.Length; i++ )
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{
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if (methodPairs[i].MetaKey == metaKey) { return read ? methodPairs[i].Deserialize : methodPairs[i].Serialize; }
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}
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throw new ArgumentException("Meta-key not found", "metaKey");
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}
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internal int MapMetaKeyToCompiledKey(int metaKey)
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{
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if (metaKey < 0 || methodPairs == null) return metaKey; // all meta, or a dummy/wildcard key
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for (int i = 0; i < methodPairs.Length; i++)
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{
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if (methodPairs[i].MetaKey == metaKey) return i;
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}
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throw new ArgumentException("Key could not be mapped: " + metaKey.ToString(), "metaKey");
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}
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#else
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internal int MapMetaKeyToCompiledKey(int metaKey)
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{
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return metaKey;
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}
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#endif
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private readonly bool isWriter;
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#if FX11 || FEAT_IKVM
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internal bool NonPublic { get { return false; } }
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#else
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private readonly bool nonPublic;
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internal bool NonPublic { get { return nonPublic; } }
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#endif
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private readonly Local inputValue;
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public Local InputValue { get { return inputValue; } }
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#if !(SILVERLIGHT || PHONE8)
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private readonly string assemblyName;
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internal CompilerContext(ILGenerator il, bool isStatic, bool isWriter, RuntimeTypeModel.SerializerPair[] methodPairs, TypeModel model, ILVersion metadataVersion, string assemblyName, Type inputType, string traceName)
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{
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if (il == null) throw new ArgumentNullException("il");
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if (methodPairs == null) throw new ArgumentNullException("methodPairs");
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if (model == null) throw new ArgumentNullException("model");
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if (Helpers.IsNullOrEmpty(assemblyName)) throw new ArgumentNullException("assemblyName");
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this.assemblyName = assemblyName;
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this.isStatic = isStatic;
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this.methodPairs = methodPairs;
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this.il = il;
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// nonPublic = false; <== implicit
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this.isWriter = isWriter;
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this.model = model;
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this.metadataVersion = metadataVersion;
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if (inputType != null) this.inputValue = new Local(null, inputType);
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TraceCompile(">> " + traceName);
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}
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#endif
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#if !(FX11 || FEAT_IKVM)
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private CompilerContext(Type associatedType, bool isWriter, bool isStatic, TypeModel model, Type inputType)
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{
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if (model == null) throw new ArgumentNullException("model");
|
||
|
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#if FX11
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metadataVersion = ILVersion.Net1;
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#else
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metadataVersion = ILVersion.Net2;
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||
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#endif
|
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this.isStatic = isStatic;
|
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this.isWriter = isWriter;
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this.model = model;
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nonPublic = true;
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Type[] paramTypes;
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Type returnType;
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if (isWriter)
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||
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{
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returnType = typeof(void);
|
||
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paramTypes = new Type[] { typeof(object), typeof(ProtoWriter) };
|
||
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}
|
||
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else
|
||
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{
|
||
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returnType = typeof(object);
|
||
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paramTypes = new Type[] { typeof(object), typeof(ProtoReader) };
|
||
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}
|
||
|
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int uniqueIdentifier;
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||
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#if PLAT_NO_INTERLOCKED
|
||
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uniqueIdentifier = ++next;
|
||
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#else
|
||
|
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uniqueIdentifier = Interlocked.Increment(ref next);
|
||
|
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#endif
|
||
|
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method = new DynamicMethod("proto_" + uniqueIdentifier.ToString(), returnType, paramTypes, associatedType
|
||
|
|
#if COREFX
|
||
|
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.GetTypeInfo()
|
||
|
|
#endif
|
||
|
|
.IsInterface ? typeof(object) : associatedType, true);
|
||
|
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this.il = method.GetILGenerator();
|
||
|
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if (inputType != null) this.inputValue = new Local(null, inputType);
|
||
|
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TraceCompile(">> " + method.Name);
|
||
|
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}
|
||
|
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|
||
|
|
#endif
|
||
|
|
private readonly ILGenerator il;
|
||
|
|
|
||
|
|
private void Emit(OpCode opcode)
|
||
|
|
{
|
||
|
|
il.Emit(opcode);
|
||
|
|
TraceCompile(opcode.ToString());
|
||
|
|
}
|
||
|
|
public void LoadValue(string value)
|
||
|
|
{
|
||
|
|
if (value == null)
|
||
|
|
{
|
||
|
|
LoadNullRef();
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
il.Emit(OpCodes.Ldstr, value);
|
||
|
|
TraceCompile(OpCodes.Ldstr + ": " + value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
public void LoadValue(float value)
|
||
|
|
{
|
||
|
|
il.Emit(OpCodes.Ldc_R4, value);
|
||
|
|
TraceCompile(OpCodes.Ldc_R4 + ": " + value);
|
||
|
|
}
|
||
|
|
public void LoadValue(double value)
|
||
|
|
{
|
||
|
|
il.Emit(OpCodes.Ldc_R8, value);
|
||
|
|
TraceCompile(OpCodes.Ldc_R8 + ": " + value);
|
||
|
|
}
|
||
|
|
public void LoadValue(long value)
|
||
|
|
{
|
||
|
|
il.Emit(OpCodes.Ldc_I8, value);
|
||
|
|
TraceCompile(OpCodes.Ldc_I8 + ": " + value);
|
||
|
|
}
|
||
|
|
public void LoadValue(int value)
|
||
|
|
{
|
||
|
|
switch (value)
|
||
|
|
{
|
||
|
|
case 0: Emit(OpCodes.Ldc_I4_0); break;
|
||
|
|
case 1: Emit(OpCodes.Ldc_I4_1); break;
|
||
|
|
case 2: Emit(OpCodes.Ldc_I4_2); break;
|
||
|
|
case 3: Emit(OpCodes.Ldc_I4_3); break;
|
||
|
|
case 4: Emit(OpCodes.Ldc_I4_4); break;
|
||
|
|
case 5: Emit(OpCodes.Ldc_I4_5); break;
|
||
|
|
case 6: Emit(OpCodes.Ldc_I4_6); break;
|
||
|
|
case 7: Emit(OpCodes.Ldc_I4_7); break;
|
||
|
|
case 8: Emit(OpCodes.Ldc_I4_8); break;
|
||
|
|
case -1: Emit(OpCodes.Ldc_I4_M1); break;
|
||
|
|
default:
|
||
|
|
if (value >= -128 && value <= 127)
|
||
|
|
{
|
||
|
|
il.Emit(OpCodes.Ldc_I4_S, (sbyte)value);
|
||
|
|
TraceCompile(OpCodes.Ldc_I4_S + ": " + value);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
il.Emit(OpCodes.Ldc_I4, value);
|
||
|
|
TraceCompile(OpCodes.Ldc_I4 + ": " + value);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
MutableList locals = new MutableList();
|
||
|
|
internal LocalBuilder GetFromPool(Type type)
|
||
|
|
{
|
||
|
|
int count = locals.Count;
|
||
|
|
for (int i = 0; i < count; i++)
|
||
|
|
{
|
||
|
|
LocalBuilder item = (LocalBuilder)locals[i];
|
||
|
|
if (item != null && item.LocalType == type)
|
||
|
|
{
|
||
|
|
locals[i] = null; // remove from pool
|
||
|
|
return item;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
LocalBuilder result = il.DeclareLocal(type);
|
||
|
|
TraceCompile("$ " + result + ": " + type);
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
//
|
||
|
|
internal void ReleaseToPool(LocalBuilder value)
|
||
|
|
{
|
||
|
|
int count = locals.Count;
|
||
|
|
for (int i = 0; i < count; i++)
|
||
|
|
{
|
||
|
|
if (locals[i] == null)
|
||
|
|
{
|
||
|
|
locals[i] = value; // released into existing slot
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
locals.Add(value); // create a new slot
|
||
|
|
}
|
||
|
|
public void LoadReaderWriter()
|
||
|
|
{
|
||
|
|
Emit(isStatic ? OpCodes.Ldarg_1 : OpCodes.Ldarg_2);
|
||
|
|
}
|
||
|
|
public void StoreValue(Local local)
|
||
|
|
{
|
||
|
|
if (local == this.InputValue)
|
||
|
|
{
|
||
|
|
byte b = isStatic ? (byte) 0 : (byte)1;
|
||
|
|
il.Emit(OpCodes.Starg_S, b);
|
||
|
|
TraceCompile(OpCodes.Starg_S + ": $" + b);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
#if !FX11
|
||
|
|
switch (local.Value.LocalIndex)
|
||
|
|
{
|
||
|
|
case 0: Emit(OpCodes.Stloc_0); break;
|
||
|
|
case 1: Emit(OpCodes.Stloc_1); break;
|
||
|
|
case 2: Emit(OpCodes.Stloc_2); break;
|
||
|
|
case 3: Emit(OpCodes.Stloc_3); break;
|
||
|
|
default:
|
||
|
|
#endif
|
||
|
|
OpCode code = UseShortForm(local) ? OpCodes.Stloc_S : OpCodes.Stloc;
|
||
|
|
il.Emit(code, local.Value);
|
||
|
|
TraceCompile(code + ": $" + local.Value);
|
||
|
|
#if !FX11
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
public void LoadValue(Local local)
|
||
|
|
{
|
||
|
|
if (local == null) { /* nothing to do; top of stack */}
|
||
|
|
else if (local == this.InputValue)
|
||
|
|
{
|
||
|
|
Emit(isStatic ? OpCodes.Ldarg_0 : OpCodes.Ldarg_1);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
#if !FX11
|
||
|
|
switch (local.Value.LocalIndex)
|
||
|
|
{
|
||
|
|
case 0: Emit(OpCodes.Ldloc_0); break;
|
||
|
|
case 1: Emit(OpCodes.Ldloc_1); break;
|
||
|
|
case 2: Emit(OpCodes.Ldloc_2); break;
|
||
|
|
case 3: Emit(OpCodes.Ldloc_3); break;
|
||
|
|
default:
|
||
|
|
#endif
|
||
|
|
OpCode code = UseShortForm(local) ? OpCodes.Ldloc_S : OpCodes.Ldloc;
|
||
|
|
il.Emit(code, local.Value);
|
||
|
|
TraceCompile(code + ": $" + local.Value);
|
||
|
|
#if !FX11
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
public Local GetLocalWithValue(Type type, Compiler.Local fromValue)
|
||
|
|
{
|
||
|
|
if (fromValue != null)
|
||
|
|
{
|
||
|
|
if (fromValue.Type == type) return fromValue.AsCopy();
|
||
|
|
// otherwise, load onto the stack and let the default handling (below) deal with it
|
||
|
|
LoadValue(fromValue);
|
||
|
|
if (!Helpers.IsValueType(type) && (fromValue.Type == null || !type.IsAssignableFrom(fromValue.Type)))
|
||
|
|
{ // need to cast
|
||
|
|
Cast(type);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// need to store the value from the stack
|
||
|
|
Local result = new Local(this, type);
|
||
|
|
StoreValue(result);
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
internal void EmitBasicRead(string methodName, Type expectedType)
|
||
|
|
{
|
||
|
|
MethodInfo method = MapType(typeof(ProtoReader)).GetMethod(
|
||
|
|
methodName, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
|
||
|
|
if (method == null || method.ReturnType != expectedType
|
||
|
|
|| method.GetParameters().Length != 0) throw new ArgumentException("methodName");
|
||
|
|
LoadReaderWriter();
|
||
|
|
EmitCall(method);
|
||
|
|
}
|
||
|
|
internal void EmitBasicRead(Type helperType, string methodName, Type expectedType)
|
||
|
|
{
|
||
|
|
MethodInfo method = helperType.GetMethod(
|
||
|
|
methodName, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static);
|
||
|
|
if (method == null || method.ReturnType != expectedType
|
||
|
|
|| method.GetParameters().Length != 1) throw new ArgumentException("methodName");
|
||
|
|
LoadReaderWriter();
|
||
|
|
EmitCall(method);
|
||
|
|
}
|
||
|
|
internal void EmitBasicWrite(string methodName, Compiler.Local fromValue)
|
||
|
|
{
|
||
|
|
if (Helpers.IsNullOrEmpty(methodName)) throw new ArgumentNullException("methodName");
|
||
|
|
LoadValue(fromValue);
|
||
|
|
LoadReaderWriter();
|
||
|
|
EmitCall(GetWriterMethod(methodName));
|
||
|
|
}
|
||
|
|
private MethodInfo GetWriterMethod(string methodName)
|
||
|
|
{
|
||
|
|
Type writerType = MapType(typeof(ProtoWriter));
|
||
|
|
MethodInfo[] methods = writerType.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static);
|
||
|
|
foreach (MethodInfo method in methods)
|
||
|
|
{
|
||
|
|
if(method.Name != methodName) continue;
|
||
|
|
ParameterInfo[] pis = method.GetParameters();
|
||
|
|
if (pis.Length == 2 && pis[1].ParameterType == writerType) return method;
|
||
|
|
}
|
||
|
|
throw new ArgumentException("No suitable method found for: " + methodName, "methodName");
|
||
|
|
}
|
||
|
|
internal void EmitWrite(Type helperType, string methodName, Compiler.Local valueFrom)
|
||
|
|
{
|
||
|
|
if (Helpers.IsNullOrEmpty(methodName)) throw new ArgumentNullException("methodName");
|
||
|
|
MethodInfo method = helperType.GetMethod(
|
||
|
|
methodName, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static);
|
||
|
|
if (method == null || method.ReturnType != MapType(typeof(void))) throw new ArgumentException("methodName");
|
||
|
|
LoadValue(valueFrom);
|
||
|
|
LoadReaderWriter();
|
||
|
|
EmitCall(method);
|
||
|
|
}
|
||
|
|
public void EmitCall(MethodInfo method) { EmitCall(method, null); }
|
||
|
|
public void EmitCall(MethodInfo method, Type targetType)
|
||
|
|
{
|
||
|
|
Helpers.DebugAssert(method != null);
|
||
|
|
MemberInfo member = method;
|
||
|
|
CheckAccessibility(ref member);
|
||
|
|
OpCode opcode;
|
||
|
|
if (method.IsStatic || Helpers.IsValueType(method.DeclaringType))
|
||
|
|
{
|
||
|
|
opcode = OpCodes.Call;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
opcode = OpCodes.Callvirt;
|
||
|
|
if (targetType != null && Helpers.IsValueType(targetType) && !Helpers.IsValueType(method.DeclaringType))
|
||
|
|
{
|
||
|
|
Constrain(targetType);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
il.EmitCall(opcode, method, null);
|
||
|
|
TraceCompile(opcode + ": " + method + " on " + method.DeclaringType + (targetType == null ? "" : (" via " + targetType)));
|
||
|
|
}
|
||
|
|
/// <summary>
|
||
|
|
/// Pushes a null reference onto the stack. Note that this should only
|
||
|
|
/// be used to return a null (or set a variable to null); for null-tests
|
||
|
|
/// use BranchIfTrue / BranchIfFalse.
|
||
|
|
/// </summary>
|
||
|
|
public void LoadNullRef()
|
||
|
|
{
|
||
|
|
Emit(OpCodes.Ldnull);
|
||
|
|
}
|
||
|
|
|
||
|
|
private int nextLabel;
|
||
|
|
|
||
|
|
internal void WriteNullCheckedTail(Type type, IProtoSerializer tail, Compiler.Local valueFrom)
|
||
|
|
{
|
||
|
|
if (Helpers.IsValueType(type))
|
||
|
|
{
|
||
|
|
Type underlyingType = null;
|
||
|
|
#if !FX11
|
||
|
|
underlyingType = Helpers.GetUnderlyingType(type);
|
||
|
|
#endif
|
||
|
|
if (underlyingType == null)
|
||
|
|
{ // not a nullable T; can invoke directly
|
||
|
|
tail.EmitWrite(this, valueFrom);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{ // nullable T; check HasValue
|
||
|
|
using (Compiler.Local valOrNull = GetLocalWithValue(type, valueFrom))
|
||
|
|
{
|
||
|
|
LoadAddress(valOrNull, type);
|
||
|
|
LoadValue(type.GetProperty("HasValue"));
|
||
|
|
CodeLabel @end = DefineLabel();
|
||
|
|
BranchIfFalse(@end, false);
|
||
|
|
LoadAddress(valOrNull, type);
|
||
|
|
EmitCall(type.GetMethod("GetValueOrDefault", Helpers.EmptyTypes));
|
||
|
|
tail.EmitWrite(this, null);
|
||
|
|
MarkLabel(@end);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{ // ref-type; do a null-check
|
||
|
|
LoadValue(valueFrom);
|
||
|
|
CopyValue();
|
||
|
|
CodeLabel hasVal = DefineLabel(), @end = DefineLabel();
|
||
|
|
BranchIfTrue(hasVal, true);
|
||
|
|
DiscardValue();
|
||
|
|
Branch(@end, false);
|
||
|
|
MarkLabel(hasVal);
|
||
|
|
tail.EmitWrite(this, null);
|
||
|
|
MarkLabel(@end);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void ReadNullCheckedTail(Type type, IProtoSerializer tail, Compiler.Local valueFrom)
|
||
|
|
{
|
||
|
|
#if !FX11
|
||
|
|
Type underlyingType;
|
||
|
|
|
||
|
|
if (Helpers.IsValueType(type) && (underlyingType = Helpers.GetUnderlyingType(type)) != null)
|
||
|
|
{
|
||
|
|
if(tail.RequiresOldValue)
|
||
|
|
{
|
||
|
|
// we expect the input value to be in valueFrom; need to unpack it from T?
|
||
|
|
using (Local loc = GetLocalWithValue(type, valueFrom))
|
||
|
|
{
|
||
|
|
LoadAddress(loc, type);
|
||
|
|
EmitCall(type.GetMethod("GetValueOrDefault", Helpers.EmptyTypes));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
Helpers.DebugAssert(valueFrom == null); // not expecting a valueFrom in this case
|
||
|
|
}
|
||
|
|
tail.EmitRead(this, null); // either unwrapped on the stack or not provided
|
||
|
|
if (tail.ReturnsValue)
|
||
|
|
{
|
||
|
|
// now re-wrap the value
|
||
|
|
EmitCtor(type, underlyingType);
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
// either a ref-type of a non-nullable struct; treat "as is", even if null
|
||
|
|
// (the type-serializer will handle the null case; it needs to allow null
|
||
|
|
// inputs to perform the correct type of subclass creation)
|
||
|
|
tail.EmitRead(this, valueFrom);
|
||
|
|
}
|
||
|
|
|
||
|
|
public void EmitCtor(Type type)
|
||
|
|
{
|
||
|
|
EmitCtor(type, Helpers.EmptyTypes);
|
||
|
|
}
|
||
|
|
|
||
|
|
public void EmitCtor(ConstructorInfo ctor)
|
||
|
|
{
|
||
|
|
if (ctor == null) throw new ArgumentNullException("ctor");
|
||
|
|
MemberInfo ctorMember = ctor;
|
||
|
|
CheckAccessibility(ref ctorMember);
|
||
|
|
il.Emit(OpCodes.Newobj, ctor);
|
||
|
|
TraceCompile(OpCodes.Newobj + ": " + ctor.DeclaringType);
|
||
|
|
}
|
||
|
|
|
||
|
|
public void InitLocal(Type type, Compiler.Local target)
|
||
|
|
{
|
||
|
|
LoadAddress(target, type, evenIfClass: true); // for class, initobj is a load-null, store-indirect
|
||
|
|
il.Emit(OpCodes.Initobj, type);
|
||
|
|
TraceCompile(OpCodes.Initobj + ": " + type);
|
||
|
|
}
|
||
|
|
public void EmitCtor(Type type, params Type[] parameterTypes)
|
||
|
|
{
|
||
|
|
Helpers.DebugAssert(type != null);
|
||
|
|
Helpers.DebugAssert(parameterTypes != null);
|
||
|
|
if (Helpers.IsValueType(type) && parameterTypes.Length == 0)
|
||
|
|
{
|
||
|
|
il.Emit(OpCodes.Initobj, type);
|
||
|
|
TraceCompile(OpCodes.Initobj + ": " + type);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ConstructorInfo ctor = Helpers.GetConstructor(type
|
||
|
|
#if COREFX
|
||
|
|
.GetTypeInfo()
|
||
|
|
#endif
|
||
|
|
, parameterTypes, true);
|
||
|
|
if (ctor == null) throw new InvalidOperationException("No suitable constructor found for " + type.FullName);
|
||
|
|
EmitCtor(ctor);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#if !(PHONE8 || SILVERLIGHT || FX11)
|
||
|
|
BasicList knownTrustedAssemblies, knownUntrustedAssemblies;
|
||
|
|
#endif
|
||
|
|
bool InternalsVisible(Assembly assembly)
|
||
|
|
{
|
||
|
|
#if PHONE8 || SILVERLIGHT || FX11
|
||
|
|
return false;
|
||
|
|
#else
|
||
|
|
if (Helpers.IsNullOrEmpty(assemblyName)) return false;
|
||
|
|
if (knownTrustedAssemblies != null)
|
||
|
|
{
|
||
|
|
if (knownTrustedAssemblies.IndexOfReference(assembly) >= 0)
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (knownUntrustedAssemblies != null)
|
||
|
|
{
|
||
|
|
if (knownUntrustedAssemblies.IndexOfReference(assembly) >= 0)
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
bool isTrusted = false;
|
||
|
|
Type attributeType = MapType(typeof(System.Runtime.CompilerServices.InternalsVisibleToAttribute));
|
||
|
|
if(attributeType == null) return false;
|
||
|
|
#if FEAT_IKVM
|
||
|
|
foreach (CustomAttributeData attrib in assembly.__GetCustomAttributes(attributeType, false))
|
||
|
|
{
|
||
|
|
if (attrib.ConstructorArguments.Count == 1)
|
||
|
|
{
|
||
|
|
string privelegedAssembly = attrib.ConstructorArguments[0].Value as string;
|
||
|
|
if (privelegedAssembly == assemblyName || privelegedAssembly.StartsWith(assemblyName + ","))
|
||
|
|
{
|
||
|
|
isTrusted = true;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
|
||
|
|
#if COREFX
|
||
|
|
foreach (System.Runtime.CompilerServices.InternalsVisibleToAttribute attrib in assembly.GetCustomAttributes(attributeType))
|
||
|
|
#else
|
||
|
|
foreach (System.Runtime.CompilerServices.InternalsVisibleToAttribute attrib in assembly.GetCustomAttributes(attributeType, false))
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
if (attrib.AssemblyName == assemblyName || attrib.AssemblyName.StartsWith(assemblyName + ","))
|
||
|
|
{
|
||
|
|
isTrusted = true;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
if (isTrusted)
|
||
|
|
{
|
||
|
|
if (knownTrustedAssemblies == null) knownTrustedAssemblies = new BasicList();
|
||
|
|
knownTrustedAssemblies.Add(assembly);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (knownUntrustedAssemblies == null) knownUntrustedAssemblies = new BasicList();
|
||
|
|
knownUntrustedAssemblies.Add(assembly);
|
||
|
|
}
|
||
|
|
return isTrusted;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
internal void CheckAccessibility(ref MemberInfo member)
|
||
|
|
{
|
||
|
|
if (member == null)
|
||
|
|
{
|
||
|
|
throw new ArgumentNullException("member");
|
||
|
|
}
|
||
|
|
#if ! COREFX
|
||
|
|
Type type;
|
||
|
|
#endif
|
||
|
|
if (!NonPublic)
|
||
|
|
{
|
||
|
|
if(member is FieldInfo && member.Name.StartsWith("<") & member.Name.EndsWith(">k__BackingField"))
|
||
|
|
{
|
||
|
|
var propName = member.Name.Substring(1, member.Name.Length - 17);
|
||
|
|
var prop = member.DeclaringType.GetProperty(propName, BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static);
|
||
|
|
if (prop != null) member = prop;
|
||
|
|
}
|
||
|
|
bool isPublic;
|
||
|
|
#if COREFX
|
||
|
|
if (member is TypeInfo)
|
||
|
|
{
|
||
|
|
TypeInfo ti = (TypeInfo)member;
|
||
|
|
do
|
||
|
|
{
|
||
|
|
isPublic = ti.IsNestedPublic || ti.IsPublic || ((ti.IsNested || ti.IsNestedAssembly || ti.IsNestedFamORAssem) && InternalsVisible(ti.Assembly));
|
||
|
|
} while (isPublic && ti.IsNested && (ti = ti.DeclaringType.GetTypeInfo()) != null);
|
||
|
|
}
|
||
|
|
else if (member is FieldInfo)
|
||
|
|
{
|
||
|
|
FieldInfo field = ((FieldInfo)member);
|
||
|
|
isPublic = field.IsPublic || ((field.IsAssembly || field.IsFamilyOrAssembly) && InternalsVisible(Helpers.GetAssembly(field.DeclaringType)));
|
||
|
|
}
|
||
|
|
else if (member is PropertyInfo)
|
||
|
|
{
|
||
|
|
isPublic = true; // defer to get/set
|
||
|
|
}
|
||
|
|
else if (member is ConstructorInfo)
|
||
|
|
{
|
||
|
|
ConstructorInfo ctor = ((ConstructorInfo)member);
|
||
|
|
isPublic = ctor.IsPublic || ((ctor.IsAssembly || ctor.IsFamilyOrAssembly) && InternalsVisible(Helpers.GetAssembly(ctor.DeclaringType)));
|
||
|
|
}
|
||
|
|
else if (member is MethodInfo)
|
||
|
|
{
|
||
|
|
MethodInfo method = ((MethodInfo)member);
|
||
|
|
isPublic = method.IsPublic || ((method.IsAssembly || method.IsFamilyOrAssembly) && InternalsVisible(Helpers.GetAssembly(method.DeclaringType)));
|
||
|
|
if (!isPublic)
|
||
|
|
{
|
||
|
|
// allow calls to TypeModel protected methods, and methods we are in the process of creating
|
||
|
|
if (
|
||
|
|
member is MethodBuilder ||
|
||
|
|
member.DeclaringType == MapType(typeof(TypeModel)))
|
||
|
|
isPublic = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
throw new NotSupportedException(member.GetType().Name);
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
MemberTypes memberType = member.MemberType;
|
||
|
|
switch (memberType)
|
||
|
|
{
|
||
|
|
case MemberTypes.TypeInfo:
|
||
|
|
// top-level type
|
||
|
|
type = (Type)member;
|
||
|
|
isPublic = type.IsPublic || InternalsVisible(type.Assembly);
|
||
|
|
break;
|
||
|
|
case MemberTypes.NestedType:
|
||
|
|
type = (Type)member;
|
||
|
|
do
|
||
|
|
{
|
||
|
|
isPublic = type.IsNestedPublic || type.IsPublic || ((type.DeclaringType == null || type.IsNestedAssembly || type.IsNestedFamORAssem) && InternalsVisible(type.Assembly));
|
||
|
|
} while (isPublic && (type = type.DeclaringType) != null); // ^^^ !type.IsNested, but not all runtimes have that
|
||
|
|
break;
|
||
|
|
case MemberTypes.Field:
|
||
|
|
FieldInfo field = ((FieldInfo)member);
|
||
|
|
isPublic = field.IsPublic || ((field.IsAssembly || field.IsFamilyOrAssembly) && InternalsVisible(field.DeclaringType.Assembly));
|
||
|
|
break;
|
||
|
|
case MemberTypes.Constructor:
|
||
|
|
ConstructorInfo ctor = ((ConstructorInfo)member);
|
||
|
|
isPublic = ctor.IsPublic || ((ctor.IsAssembly || ctor.IsFamilyOrAssembly) && InternalsVisible(ctor.DeclaringType.Assembly));
|
||
|
|
break;
|
||
|
|
case MemberTypes.Method:
|
||
|
|
MethodInfo method = ((MethodInfo)member);
|
||
|
|
isPublic = method.IsPublic || ((method.IsAssembly || method.IsFamilyOrAssembly) && InternalsVisible(method.DeclaringType.Assembly));
|
||
|
|
if (!isPublic)
|
||
|
|
{
|
||
|
|
// allow calls to TypeModel protected methods, and methods we are in the process of creating
|
||
|
|
if(
|
||
|
|
#if !SILVERLIGHT
|
||
|
|
member is MethodBuilder ||
|
||
|
|
#endif
|
||
|
|
member.DeclaringType == MapType(typeof(TypeModel))) isPublic = true;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case MemberTypes.Property:
|
||
|
|
isPublic = true; // defer to get/set
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
throw new NotSupportedException(memberType.ToString());
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
if (!isPublic)
|
||
|
|
{
|
||
|
|
#if COREFX
|
||
|
|
if (member is TypeInfo)
|
||
|
|
{
|
||
|
|
throw new InvalidOperationException("Non-public type cannot be used with full dll compilation: " +
|
||
|
|
((TypeInfo)member).FullName);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
throw new InvalidOperationException("Non-public member cannot be used with full dll compilation: " +
|
||
|
|
member.DeclaringType.FullName + "." + member.Name);
|
||
|
|
}
|
||
|
|
|
||
|
|
#else
|
||
|
|
switch (memberType)
|
||
|
|
{
|
||
|
|
case MemberTypes.TypeInfo:
|
||
|
|
case MemberTypes.NestedType:
|
||
|
|
throw new InvalidOperationException("Non-public type cannot be used with full dll compilation: " +
|
||
|
|
((Type)member).FullName);
|
||
|
|
default:
|
||
|
|
throw new InvalidOperationException("Non-public member cannot be used with full dll compilation: " +
|
||
|
|
member.DeclaringType.FullName + "." + member.Name);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public void LoadValue(FieldInfo field)
|
||
|
|
{
|
||
|
|
MemberInfo member = field;
|
||
|
|
CheckAccessibility(ref member);
|
||
|
|
if (member is PropertyInfo)
|
||
|
|
{
|
||
|
|
LoadValue((PropertyInfo)member);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
OpCode code = field.IsStatic ? OpCodes.Ldsfld : OpCodes.Ldfld;
|
||
|
|
il.Emit(code, field);
|
||
|
|
TraceCompile(code + ": " + field + " on " + field.DeclaringType);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#if FEAT_IKVM
|
||
|
|
public void StoreValue(System.Reflection.FieldInfo field)
|
||
|
|
{
|
||
|
|
StoreValue(MapType(field.DeclaringType).GetField(field.Name, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance));
|
||
|
|
}
|
||
|
|
public void StoreValue(System.Reflection.PropertyInfo property)
|
||
|
|
{
|
||
|
|
StoreValue(MapType(property.DeclaringType).GetProperty(property.Name, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance));
|
||
|
|
}
|
||
|
|
public void LoadValue(System.Reflection.FieldInfo field)
|
||
|
|
{
|
||
|
|
LoadValue(MapType(field.DeclaringType).GetField(field.Name, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance));
|
||
|
|
}
|
||
|
|
public void LoadValue(System.Reflection.PropertyInfo property)
|
||
|
|
{
|
||
|
|
LoadValue(MapType(property.DeclaringType).GetProperty(property.Name, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance));
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
public void StoreValue(FieldInfo field)
|
||
|
|
{
|
||
|
|
MemberInfo member = field;
|
||
|
|
CheckAccessibility(ref member);
|
||
|
|
if (member is PropertyInfo)
|
||
|
|
{
|
||
|
|
StoreValue((PropertyInfo)member);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
OpCode code = field.IsStatic ? OpCodes.Stsfld : OpCodes.Stfld;
|
||
|
|
il.Emit(code, field);
|
||
|
|
TraceCompile(code + ": " + field + " on " + field.DeclaringType);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public void LoadValue(PropertyInfo property)
|
||
|
|
{
|
||
|
|
MemberInfo member = property;
|
||
|
|
CheckAccessibility(ref member);
|
||
|
|
EmitCall(Helpers.GetGetMethod(property, true, true));
|
||
|
|
}
|
||
|
|
public void StoreValue(PropertyInfo property)
|
||
|
|
{
|
||
|
|
MemberInfo member = property;
|
||
|
|
CheckAccessibility(ref member);
|
||
|
|
EmitCall(Helpers.GetSetMethod(property, true, true));
|
||
|
|
}
|
||
|
|
|
||
|
|
//internal void EmitInstance()
|
||
|
|
//{
|
||
|
|
// if (isStatic) throw new InvalidOperationException();
|
||
|
|
// Emit(OpCodes.Ldarg_0);
|
||
|
|
//}
|
||
|
|
|
||
|
|
internal static void LoadValue(ILGenerator il, int value)
|
||
|
|
{
|
||
|
|
switch (value)
|
||
|
|
{
|
||
|
|
case 0: il.Emit(OpCodes.Ldc_I4_0); break;
|
||
|
|
case 1: il.Emit(OpCodes.Ldc_I4_1); break;
|
||
|
|
case 2: il.Emit(OpCodes.Ldc_I4_2); break;
|
||
|
|
case 3: il.Emit(OpCodes.Ldc_I4_3); break;
|
||
|
|
case 4: il.Emit(OpCodes.Ldc_I4_4); break;
|
||
|
|
case 5: il.Emit(OpCodes.Ldc_I4_5); break;
|
||
|
|
case 6: il.Emit(OpCodes.Ldc_I4_6); break;
|
||
|
|
case 7: il.Emit(OpCodes.Ldc_I4_7); break;
|
||
|
|
case 8: il.Emit(OpCodes.Ldc_I4_8); break;
|
||
|
|
case -1: il.Emit(OpCodes.Ldc_I4_M1); break;
|
||
|
|
default: il.Emit(OpCodes.Ldc_I4, value); break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private bool UseShortForm(Local local)
|
||
|
|
{
|
||
|
|
#if FX11
|
||
|
|
return locals.Count < 256;
|
||
|
|
#else
|
||
|
|
return local.Value.LocalIndex < 256;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
#if FEAT_IKVM
|
||
|
|
internal void LoadAddress(Local local, System.Type type)
|
||
|
|
{
|
||
|
|
LoadAddress(local, MapType(type));
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
internal void LoadAddress(Local local, Type type, bool evenIfClass = false)
|
||
|
|
{
|
||
|
|
if (evenIfClass || Helpers.IsValueType(type))
|
||
|
|
{
|
||
|
|
if (local == null)
|
||
|
|
{
|
||
|
|
throw new InvalidOperationException("Cannot load the address of the head of the stack");
|
||
|
|
}
|
||
|
|
|
||
|
|
if (local == this.InputValue)
|
||
|
|
{
|
||
|
|
il.Emit(OpCodes.Ldarga_S, (isStatic ? (byte)0 : (byte)1));
|
||
|
|
TraceCompile(OpCodes.Ldarga_S + ": $" + (isStatic ? 0 : 1));
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
OpCode code = UseShortForm(local) ? OpCodes.Ldloca_S : OpCodes.Ldloca;
|
||
|
|
il.Emit(code, local.Value);
|
||
|
|
TraceCompile(code + ": $" + local.Value);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{ // reference-type; already *is* the address; just load it
|
||
|
|
LoadValue(local);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
internal void Branch(CodeLabel label, bool @short)
|
||
|
|
{
|
||
|
|
OpCode code = @short ? OpCodes.Br_S : OpCodes.Br;
|
||
|
|
il.Emit(code, label.Value);
|
||
|
|
TraceCompile(code + ": " + label.Index);
|
||
|
|
}
|
||
|
|
internal void BranchIfFalse(CodeLabel label, bool @short)
|
||
|
|
{
|
||
|
|
OpCode code = @short ? OpCodes.Brfalse_S : OpCodes.Brfalse;
|
||
|
|
il.Emit(code, label.Value);
|
||
|
|
TraceCompile(code + ": " + label.Index);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
internal void BranchIfTrue(CodeLabel label, bool @short)
|
||
|
|
{
|
||
|
|
OpCode code = @short ? OpCodes.Brtrue_S : OpCodes.Brtrue;
|
||
|
|
il.Emit(code, label.Value);
|
||
|
|
TraceCompile(code + ": " + label.Index);
|
||
|
|
}
|
||
|
|
internal void BranchIfEqual(CodeLabel label, bool @short)
|
||
|
|
{
|
||
|
|
OpCode code = @short ? OpCodes.Beq_S : OpCodes.Beq;
|
||
|
|
il.Emit(code, label.Value);
|
||
|
|
TraceCompile(code + ": " + label.Index);
|
||
|
|
}
|
||
|
|
//internal void TestEqual()
|
||
|
|
//{
|
||
|
|
// Emit(OpCodes.Ceq);
|
||
|
|
//}
|
||
|
|
|
||
|
|
|
||
|
|
internal void CopyValue()
|
||
|
|
{
|
||
|
|
Emit(OpCodes.Dup);
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void BranchIfGreater(CodeLabel label, bool @short)
|
||
|
|
{
|
||
|
|
OpCode code = @short ? OpCodes.Bgt_S : OpCodes.Bgt;
|
||
|
|
il.Emit(code, label.Value);
|
||
|
|
TraceCompile(code + ": " + label.Index);
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void BranchIfLess(CodeLabel label, bool @short)
|
||
|
|
{
|
||
|
|
OpCode code = @short ? OpCodes.Blt_S : OpCodes.Blt;
|
||
|
|
il.Emit(code, label.Value);
|
||
|
|
TraceCompile(code + ": " + label.Index);
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void DiscardValue()
|
||
|
|
{
|
||
|
|
Emit(OpCodes.Pop);
|
||
|
|
}
|
||
|
|
|
||
|
|
public void Subtract()
|
||
|
|
{
|
||
|
|
Emit(OpCodes.Sub);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
public void Switch(CodeLabel[] jumpTable)
|
||
|
|
{
|
||
|
|
const int MAX_JUMPS = 128;
|
||
|
|
|
||
|
|
if (jumpTable.Length <= MAX_JUMPS)
|
||
|
|
{
|
||
|
|
// simple case
|
||
|
|
Label[] labels = new Label[jumpTable.Length];
|
||
|
|
for (int i = 0; i < labels.Length; i++)
|
||
|
|
{
|
||
|
|
labels[i] = jumpTable[i].Value;
|
||
|
|
}
|
||
|
|
TraceCompile(OpCodes.Switch.ToString());
|
||
|
|
il.Emit(OpCodes.Switch, labels);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// too many to jump easily (especially on Android) - need to split up (note: uses a local pulled from the stack)
|
||
|
|
using (Local val = GetLocalWithValue(MapType(typeof(int)), null))
|
||
|
|
{
|
||
|
|
int count = jumpTable.Length, offset = 0;
|
||
|
|
int blockCount = count / MAX_JUMPS;
|
||
|
|
if ((count % MAX_JUMPS) != 0) blockCount++;
|
||
|
|
|
||
|
|
Label[] blockLabels = new Label[blockCount];
|
||
|
|
for (int i = 0; i < blockCount; i++)
|
||
|
|
{
|
||
|
|
blockLabels[i] = il.DefineLabel();
|
||
|
|
}
|
||
|
|
CodeLabel endOfSwitch = DefineLabel();
|
||
|
|
|
||
|
|
LoadValue(val);
|
||
|
|
LoadValue(MAX_JUMPS);
|
||
|
|
Emit(OpCodes.Div);
|
||
|
|
TraceCompile(OpCodes.Switch.ToString());
|
||
|
|
il.Emit(OpCodes.Switch, blockLabels);
|
||
|
|
Branch(endOfSwitch, false);
|
||
|
|
|
||
|
|
Label[] innerLabels = new Label[MAX_JUMPS];
|
||
|
|
for (int blockIndex = 0; blockIndex < blockCount; blockIndex++)
|
||
|
|
{
|
||
|
|
il.MarkLabel(blockLabels[blockIndex]);
|
||
|
|
|
||
|
|
int itemsThisBlock = Math.Min(MAX_JUMPS, count);
|
||
|
|
count -= itemsThisBlock;
|
||
|
|
if (innerLabels.Length != itemsThisBlock) innerLabels = new Label[itemsThisBlock];
|
||
|
|
|
||
|
|
int subtract = offset;
|
||
|
|
for (int j = 0; j < itemsThisBlock; j++)
|
||
|
|
{
|
||
|
|
innerLabels[j] = jumpTable[offset++].Value;
|
||
|
|
}
|
||
|
|
LoadValue(val);
|
||
|
|
if (subtract != 0) // switches are always zero-based
|
||
|
|
{
|
||
|
|
LoadValue(subtract);
|
||
|
|
Emit(OpCodes.Sub);
|
||
|
|
}
|
||
|
|
TraceCompile(OpCodes.Switch.ToString());
|
||
|
|
il.Emit(OpCodes.Switch, innerLabels);
|
||
|
|
if (count != 0)
|
||
|
|
{ // force default to the very bottom
|
||
|
|
Branch(endOfSwitch, false);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
Helpers.DebugAssert(count == 0, "Should use exactly all switch items");
|
||
|
|
MarkLabel(endOfSwitch);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void EndFinally()
|
||
|
|
{
|
||
|
|
il.EndExceptionBlock();
|
||
|
|
TraceCompile("EndExceptionBlock");
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void BeginFinally()
|
||
|
|
{
|
||
|
|
il.BeginFinallyBlock();
|
||
|
|
TraceCompile("BeginFinallyBlock");
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void EndTry(CodeLabel label, bool @short)
|
||
|
|
{
|
||
|
|
OpCode code = @short ? OpCodes.Leave_S : OpCodes.Leave;
|
||
|
|
il.Emit(code, label.Value);
|
||
|
|
TraceCompile(code + ": " + label.Index);
|
||
|
|
}
|
||
|
|
|
||
|
|
internal CodeLabel BeginTry()
|
||
|
|
{
|
||
|
|
CodeLabel label = new CodeLabel(il.BeginExceptionBlock(), nextLabel++);
|
||
|
|
TraceCompile("BeginExceptionBlock: " + label.Index);
|
||
|
|
return label;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void Constrain(Type type)
|
||
|
|
{
|
||
|
|
#if FX11
|
||
|
|
throw new NotSupportedException("This operation requires a constrained call, which is not available on this platform");
|
||
|
|
#else
|
||
|
|
il.Emit(OpCodes.Constrained, type);
|
||
|
|
TraceCompile(OpCodes.Constrained + ": " + type);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
internal void TryCast(Type type)
|
||
|
|
{
|
||
|
|
il.Emit(OpCodes.Isinst, type);
|
||
|
|
TraceCompile(OpCodes.Isinst + ": " + type);
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void Cast(Type type)
|
||
|
|
{
|
||
|
|
il.Emit(OpCodes.Castclass, type);
|
||
|
|
TraceCompile(OpCodes.Castclass + ": " + type);
|
||
|
|
}
|
||
|
|
public IDisposable Using(Local local)
|
||
|
|
{
|
||
|
|
return new UsingBlock(this, local);
|
||
|
|
}
|
||
|
|
private sealed class UsingBlock : IDisposable{
|
||
|
|
private Local local;
|
||
|
|
CompilerContext ctx;
|
||
|
|
CodeLabel label;
|
||
|
|
/// <summary>
|
||
|
|
/// Creates a new "using" block (equivalent) around a variable;
|
||
|
|
/// the variable must exist, and note that (unlike in C#) it is
|
||
|
|
/// the variables *final* value that gets disposed. If you need
|
||
|
|
/// *original* disposal, copy your variable first.
|
||
|
|
///
|
||
|
|
/// It is the callers responsibility to ensure that the variable's
|
||
|
|
/// scope fully-encapsulates the "using"; if not, the variable
|
||
|
|
/// may be re-used (and thus re-assigned) unexpectedly.
|
||
|
|
/// </summary>
|
||
|
|
public UsingBlock(CompilerContext ctx, Local local)
|
||
|
|
{
|
||
|
|
if (ctx == null) throw new ArgumentNullException("ctx");
|
||
|
|
if (local == null) throw new ArgumentNullException("local");
|
||
|
|
|
||
|
|
Type type = local.Type;
|
||
|
|
// check if **never** disposable
|
||
|
|
if ((Helpers.IsValueType(type) || Helpers.IsSealed(type)) &&
|
||
|
|
!ctx.MapType(typeof(IDisposable)).IsAssignableFrom(type))
|
||
|
|
{
|
||
|
|
return; // nothing to do! easiest "using" block ever
|
||
|
|
// (note that C# wouldn't allow this as a "using" block,
|
||
|
|
// but we'll be generous and simply not do anything)
|
||
|
|
}
|
||
|
|
this.local = local;
|
||
|
|
this.ctx = ctx;
|
||
|
|
label = ctx.BeginTry();
|
||
|
|
|
||
|
|
}
|
||
|
|
public void Dispose()
|
||
|
|
{
|
||
|
|
if (local == null || ctx == null) return;
|
||
|
|
|
||
|
|
ctx.EndTry(label, false);
|
||
|
|
ctx.BeginFinally();
|
||
|
|
Type disposableType = ctx.MapType(typeof (IDisposable));
|
||
|
|
MethodInfo dispose = disposableType.GetMethod("Dispose");
|
||
|
|
Type type = local.Type;
|
||
|
|
// remember that we've already (in the .ctor) excluded the case
|
||
|
|
// where it *cannot* be disposable
|
||
|
|
if (Helpers.IsValueType(type))
|
||
|
|
{
|
||
|
|
ctx.LoadAddress(local, type);
|
||
|
|
switch (ctx.MetadataVersion)
|
||
|
|
{
|
||
|
|
case ILVersion.Net1:
|
||
|
|
ctx.LoadValue(local);
|
||
|
|
ctx.CastToObject(type);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
#if FX11
|
||
|
|
throw new NotSupportedException();
|
||
|
|
#else
|
||
|
|
ctx.Constrain(type);
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
ctx.EmitCall(dispose);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
Compiler.CodeLabel @null = ctx.DefineLabel();
|
||
|
|
if (disposableType.IsAssignableFrom(type))
|
||
|
|
{ // *known* to be IDisposable; just needs a null-check
|
||
|
|
ctx.LoadValue(local);
|
||
|
|
ctx.BranchIfFalse(@null, true);
|
||
|
|
ctx.LoadAddress(local, type);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{ // *could* be IDisposable; test via "as"
|
||
|
|
using (Compiler.Local disp = new Compiler.Local(ctx, disposableType))
|
||
|
|
{
|
||
|
|
ctx.LoadValue(local);
|
||
|
|
ctx.TryCast(disposableType);
|
||
|
|
ctx.CopyValue();
|
||
|
|
ctx.StoreValue(disp);
|
||
|
|
ctx.BranchIfFalse(@null, true);
|
||
|
|
ctx.LoadAddress(disp, disposableType);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
ctx.EmitCall(dispose);
|
||
|
|
ctx.MarkLabel(@null);
|
||
|
|
}
|
||
|
|
ctx.EndFinally();
|
||
|
|
this.local = null;
|
||
|
|
this.ctx = null;
|
||
|
|
label = new CodeLabel(); // default
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void Add()
|
||
|
|
{
|
||
|
|
Emit(OpCodes.Add);
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void LoadLength(Local arr, bool zeroIfNull)
|
||
|
|
{
|
||
|
|
Helpers.DebugAssert(arr.Type.IsArray && arr.Type.GetArrayRank() == 1);
|
||
|
|
|
||
|
|
if (zeroIfNull)
|
||
|
|
{
|
||
|
|
Compiler.CodeLabel notNull = DefineLabel(), done = DefineLabel();
|
||
|
|
LoadValue(arr);
|
||
|
|
CopyValue(); // optimised for non-null case
|
||
|
|
BranchIfTrue(notNull, true);
|
||
|
|
DiscardValue();
|
||
|
|
LoadValue(0);
|
||
|
|
Branch(done, true);
|
||
|
|
MarkLabel(notNull);
|
||
|
|
Emit(OpCodes.Ldlen);
|
||
|
|
Emit(OpCodes.Conv_I4);
|
||
|
|
MarkLabel(done);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
LoadValue(arr);
|
||
|
|
Emit(OpCodes.Ldlen);
|
||
|
|
Emit(OpCodes.Conv_I4);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void CreateArray(Type elementType, Local length)
|
||
|
|
{
|
||
|
|
LoadValue(length);
|
||
|
|
il.Emit(OpCodes.Newarr, elementType);
|
||
|
|
TraceCompile(OpCodes.Newarr + ": " + elementType);
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void LoadArrayValue(Local arr, Local i)
|
||
|
|
{
|
||
|
|
Type type = arr.Type;
|
||
|
|
Helpers.DebugAssert(type.IsArray && arr.Type.GetArrayRank() == 1);
|
||
|
|
type = type.GetElementType();
|
||
|
|
Helpers.DebugAssert(type != null, "Not an array: " + arr.Type.FullName);
|
||
|
|
LoadValue(arr);
|
||
|
|
LoadValue(i);
|
||
|
|
switch(Helpers.GetTypeCode(type)) {
|
||
|
|
case ProtoTypeCode.SByte: Emit(OpCodes.Ldelem_I1); break;
|
||
|
|
case ProtoTypeCode.Int16: Emit(OpCodes.Ldelem_I2); break;
|
||
|
|
case ProtoTypeCode.Int32: Emit(OpCodes.Ldelem_I4); break;
|
||
|
|
case ProtoTypeCode.Int64: Emit(OpCodes.Ldelem_I8); break;
|
||
|
|
|
||
|
|
case ProtoTypeCode.Byte: Emit(OpCodes.Ldelem_U1); break;
|
||
|
|
case ProtoTypeCode.UInt16: Emit(OpCodes.Ldelem_U2); break;
|
||
|
|
case ProtoTypeCode.UInt32: Emit(OpCodes.Ldelem_U4); break;
|
||
|
|
case ProtoTypeCode.UInt64: Emit(OpCodes.Ldelem_I8); break; // odd, but this is what C# does...
|
||
|
|
|
||
|
|
case ProtoTypeCode.Single: Emit(OpCodes.Ldelem_R4); break;
|
||
|
|
case ProtoTypeCode.Double: Emit(OpCodes.Ldelem_R8); break;
|
||
|
|
default:
|
||
|
|
if (Helpers.IsValueType(type))
|
||
|
|
{
|
||
|
|
il.Emit(OpCodes.Ldelema, type);
|
||
|
|
il.Emit(OpCodes.Ldobj, type);
|
||
|
|
TraceCompile(OpCodes.Ldelema + ": " + type);
|
||
|
|
TraceCompile(OpCodes.Ldobj + ": " + type);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
Emit(OpCodes.Ldelem_Ref);
|
||
|
|
}
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
internal void LoadValue(Type type)
|
||
|
|
{
|
||
|
|
il.Emit(OpCodes.Ldtoken, type);
|
||
|
|
TraceCompile(OpCodes.Ldtoken + ": " + type);
|
||
|
|
EmitCall(MapType(typeof(System.Type)).GetMethod("GetTypeFromHandle"));
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void ConvertToInt32(ProtoTypeCode typeCode, bool uint32Overflow)
|
||
|
|
{
|
||
|
|
switch (typeCode)
|
||
|
|
{
|
||
|
|
case ProtoTypeCode.Byte:
|
||
|
|
case ProtoTypeCode.SByte:
|
||
|
|
case ProtoTypeCode.Int16:
|
||
|
|
case ProtoTypeCode.UInt16:
|
||
|
|
Emit(OpCodes.Conv_I4);
|
||
|
|
break;
|
||
|
|
case ProtoTypeCode.Int32:
|
||
|
|
break;
|
||
|
|
case ProtoTypeCode.Int64:
|
||
|
|
Emit(OpCodes.Conv_Ovf_I4);
|
||
|
|
break;
|
||
|
|
case ProtoTypeCode.UInt32:
|
||
|
|
Emit(uint32Overflow ? OpCodes.Conv_Ovf_I4_Un : OpCodes.Conv_Ovf_I4);
|
||
|
|
break;
|
||
|
|
case ProtoTypeCode.UInt64:
|
||
|
|
Emit(OpCodes.Conv_Ovf_I4_Un);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
throw new InvalidOperationException("ConvertToInt32 not implemented for: " + typeCode.ToString());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void ConvertFromInt32(ProtoTypeCode typeCode, bool uint32Overflow)
|
||
|
|
{
|
||
|
|
switch (typeCode)
|
||
|
|
{
|
||
|
|
case ProtoTypeCode.SByte: Emit(OpCodes.Conv_Ovf_I1); break;
|
||
|
|
case ProtoTypeCode.Byte: Emit(OpCodes.Conv_Ovf_U1); break;
|
||
|
|
case ProtoTypeCode.Int16: Emit(OpCodes.Conv_Ovf_I2); break;
|
||
|
|
case ProtoTypeCode.UInt16: Emit(OpCodes.Conv_Ovf_U2); break;
|
||
|
|
case ProtoTypeCode.Int32: break;
|
||
|
|
case ProtoTypeCode.UInt32: Emit(uint32Overflow ? OpCodes.Conv_Ovf_U4 : OpCodes.Conv_U4); break;
|
||
|
|
case ProtoTypeCode.Int64: Emit(OpCodes.Conv_I8); break;
|
||
|
|
case ProtoTypeCode.UInt64: Emit(OpCodes.Conv_U8); break;
|
||
|
|
default: throw new InvalidOperationException();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void LoadValue(decimal value)
|
||
|
|
{
|
||
|
|
if (value == 0M)
|
||
|
|
{
|
||
|
|
LoadValue(typeof(decimal).GetField("Zero"));
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
int[] bits = decimal.GetBits(value);
|
||
|
|
LoadValue(bits[0]); // lo
|
||
|
|
LoadValue(bits[1]); // mid
|
||
|
|
LoadValue(bits[2]); // hi
|
||
|
|
LoadValue((int)(((uint)bits[3]) >> 31)); // isNegative (bool, but int for CLI purposes)
|
||
|
|
LoadValue((bits[3] >> 16) & 0xFF); // scale (byte, but int for CLI purposes)
|
||
|
|
|
||
|
|
EmitCtor(MapType(typeof(decimal)), new Type[] { MapType(typeof(int)), MapType(typeof(int)), MapType(typeof(int)), MapType(typeof(bool)), MapType(typeof(byte)) });
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void LoadValue(Guid value)
|
||
|
|
{
|
||
|
|
if (value == Guid.Empty)
|
||
|
|
{
|
||
|
|
LoadValue(typeof(Guid).GetField("Empty"));
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{ // note we're adding lots of shorts/bytes here - but at the IL level they are I4, not I1/I2 (which barely exist)
|
||
|
|
byte[] bytes = value.ToByteArray();
|
||
|
|
int i = (bytes[0]) | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24);
|
||
|
|
LoadValue(i);
|
||
|
|
short s = (short)((bytes[4]) | (bytes[5] << 8));
|
||
|
|
LoadValue(s);
|
||
|
|
s = (short)((bytes[6]) | (bytes[7] << 8));
|
||
|
|
LoadValue(s);
|
||
|
|
for (i = 8; i <= 15; i++)
|
||
|
|
{
|
||
|
|
LoadValue(bytes[i]);
|
||
|
|
}
|
||
|
|
EmitCtor(MapType(typeof(Guid)), new Type[] { MapType(typeof(int)), MapType(typeof(short)), MapType(typeof(short)),
|
||
|
|
MapType(typeof(byte)), MapType(typeof(byte)), MapType(typeof(byte)), MapType(typeof(byte)), MapType(typeof(byte)), MapType(typeof(byte)), MapType(typeof(byte)), MapType(typeof(byte)) });
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//internal void LoadValue(bool value)
|
||
|
|
//{
|
||
|
|
// Emit(value ? OpCodes.Ldc_I4_1 : OpCodes.Ldc_I4_0);
|
||
|
|
//}
|
||
|
|
|
||
|
|
internal void LoadSerializationContext()
|
||
|
|
{
|
||
|
|
LoadReaderWriter();
|
||
|
|
LoadValue((isWriter ? typeof(ProtoWriter) : typeof(ProtoReader)).GetProperty("Context"));
|
||
|
|
}
|
||
|
|
|
||
|
|
private readonly TypeModel model;
|
||
|
|
|
||
|
|
internal Type MapType(System.Type type)
|
||
|
|
{
|
||
|
|
return model.MapType(type);
|
||
|
|
}
|
||
|
|
|
||
|
|
private readonly ILVersion metadataVersion;
|
||
|
|
public ILVersion MetadataVersion { get { return metadataVersion; } }
|
||
|
|
public enum ILVersion
|
||
|
|
{
|
||
|
|
Net1, Net2
|
||
|
|
}
|
||
|
|
|
||
|
|
internal bool AllowInternal(PropertyInfo property)
|
||
|
|
{
|
||
|
|
return NonPublic ? true : InternalsVisible(Helpers.GetAssembly(property.DeclaringType));
|
||
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|
}
|
||
|
|
}
|
||
|
|
}
|
||
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|
#endif
|