public void Emit()
{
if (Method != null)
{
return;
}
Method = new DynamicMethod(
Name, typeof(int), Parameters.Select(t => t.Type).ToArray(), typeof(Program));
ILGenerator g = Method.GetILGenerator();
LocalBuilder hashCode = g.DeclareLocal(typeof(HashCode));
if (Config.Verbose)
{
Program.EmitDumpValues("Callee's incoming args", g, Parameters.Select((t, i) => new ArgValue(t, i)));
}
g.Emit(OpCodes.Ldloca, hashCode);
g.Emit(OpCodes.Initobj, typeof(HashCode));
for (int i = 0; i < Parameters.Count; i++)
{
TypeEx pm = Parameters[i];
g.Emit(OpCodes.Ldloca, hashCode);
g.Emit(OpCodes.Ldarga, checked ((short)i));
g.Emit(OpCodes.Ldc_I4, pm.Size);
g.Emit(OpCodes.Call, s_memoryMarshalCreateReadOnlySpanMethod);
g.Emit(OpCodes.Call, s_hashCodeAddBytesMethod);
}
g.Emit(OpCodes.Ldloca, hashCode);
g.Emit(OpCodes.Call, s_hashCodeToHashCodeMethod);
g.Emit(OpCodes.Ret);
}
public Value(TypeEx type)
{
Type = type;
}
public ConstantValue(TypeEx type, object value) : base(type)
{
Value = value;
}
public ArgValue(TypeEx type, int index) : base(type)
{
Index = index;
}