public static ILEmitter EmitCheckNullablesForValue(this ILEmitter il, ILEmitterFunc nullableX, ILEmitterFunc nullableY, Type nullableType, Label ifBothNull)
{
var hasValueMethod = nullableType.GetPropertyGetter("HasValue");
return(il.CallMethod(hasValueMethod, nullableY)
.Stloc(typeof(bool), out var secondHasValue)
.CallMethod(hasValueMethod, nullableX)
.Brtrue_S(out var ifFirstHasValue)
.Ldloc(secondHasValue)
.Brfalse(ifBothNull)
.Ret(0)
.MarkLabel(ifFirstHasValue)
.Ldloc(secondHasValue)
.Brtrue_S(out var next)
.Ret(0)
.MarkLabel(next));
}
public static ILEmitter EmitReferenceComparison(this ILEmitter il, ILEmitterFunc loadX, ILEmitterFunc loadY, ILEmitterFunc ifEqual) => il.Bne_Un_S(loadX, loadY, out var checkX) .Emit(ifEqual) .MarkLabel(checkX) .Emit(loadX) .Brtrue_S(out var checkY)
public static ILEmitter Cast <T>(this ILEmitter self, ILEmitterFunc value) => value(self).Cast(typeof(T));
