private void EmitGetHashCode(PropertyAndField[] properties, MethodBuilder method)
{
MethodInfo methodInfo = ObjectType.GetMethod("GetHashCode", Type.EmptyTypes);
ILGenerator iLGenerator = method.GetILGenerator();
iLGenerator.Emit(OpCodes.Ldc_I4, method.GetHashCode());
int index = 0;
if (0 < properties.Length)
{
do
{
PropertyAndField field = properties[index];
FieldBuilder builder = field.Field;
if (!field.Property.CanWrite)
{
iLGenerator.Emit(OpCodes.Ldc_I4, 0x1f);
iLGenerator.Emit(OpCodes.Mul);
Label label = iLGenerator.DefineLabel();
iLGenerator.Emit(OpCodes.Ldarg_0);
iLGenerator.Emit(OpCodes.Ldfld, builder);
iLGenerator.Emit(OpCodes.Box, builder.FieldType);
iLGenerator.Emit(OpCodes.Brfalse_S, label);
iLGenerator.Emit(OpCodes.Ldarg_0);
iLGenerator.Emit(OpCodes.Ldflda, builder);
iLGenerator.Emit(OpCodes.Constrained, builder.FieldType);
iLGenerator.EmitCall(OpCodes.Callvirt, methodInfo, null);
iLGenerator.Emit(OpCodes.Add);
iLGenerator.MarkLabel(label);
}
index++;
}
while (index < properties.Length);
}
iLGenerator.Emit(OpCodes.Ret);
}
