VVMRational.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#if WITH_VERSE_VM || defined(__INTELLISENSE__)
 
#include "CoreTypes.h"
#include "HAL/Platform.h"
#include "Misc/AssertionMacros.h"
#include "VVMContext.h"
#include "VVMGlobalTrivialEmergentTypePtr.h"
#include "VVMInt.h"
#include "VVMValue.h"
 
namespace Verse
{
enum class EValueStringFormat;
 
struct VRational : VHeapValue
{
    DECLARE_DERIVED_VCPPCLASSINFO(COREUOBJECT_API, VHeapValue);
    COREUOBJECT_API static TGlobalTrivialEmergentTypePtr<&StaticCppClassInfo> GlobalTrivialEmergentType;
 
    TWriteBarrier<VInt> Numerator;
    TWriteBarrier<VInt> Denominator;
 
    COREUOBJECT_API static VRational& Add(FAllocationContext Context, VRational& Lhs, VRational& Rhs);
    COREUOBJECT_API static VRational& Sub(FAllocationContext Context, VRational& Lhs, VRational& Rhs);
    COREUOBJECT_API static VRational& Mul(FAllocationContext Context, VRational& Lhs, VRational& Rhs);
    COREUOBJECT_API static VRational& Div(FAllocationContext Context, VRational& Lhs, VRational& Rhs);
    COREUOBJECT_API static VRational& Neg(FAllocationContext Context, VRational& N);
    COREUOBJECT_API static bool Eq(FAllocationContext Context, VRational& Lhs, VRational& Rhs);
    COREUOBJECT_API static bool Eq(FAllocationContext Context, VRational& Lhs, VInt Rhs);
    COREUOBJECT_API static bool Gt(FAllocationContext Context, VRational& Lhs, VRational& Rhs);
    COREUOBJECT_API static bool Lt(FAllocationContext Context, VRational& Lhs, VRational& Rhs);
    COREUOBJECT_API static bool Gte(FAllocationContext Context, VRational& Lhs, VRational& Rhs);
    COREUOBJECT_API static bool Lte(FAllocationContext Context, VRational& Lhs, VRational& Rhs);
 
    COREUOBJECT_API VInt Floor(FAllocationContext Context) const;
    COREUOBJECT_API VInt Ceil(FAllocationContext Context) const;
 
    COREUOBJECT_API void Reduce(FAllocationContext Context);
    COREUOBJECT_API void NormalizeSigns(FAllocationContext Context);
    bool IsZero() const { return Numerator.Get().IsZero(); }
    bool IsReduced() const { return bIsReduced; }
 
    static VRational& New(FAllocationContext Context, VInt InNumerator, VInt InDenominator)
    {
        return *new (Context.AllocateFastCell(sizeof(VRational))) VRational(Context, InNumerator, InDenominator);
    }
 
    COREUOBJECT_API ECompares EqualImpl(FAllocationContext Context, VCell* Other, const TFunction<void(::Verse::VValue, ::Verse::VValue)>& HandlePlaceholder);
 
    COREUOBJECT_API uint32 GetTypeHashImpl();
 
    COREUOBJECT_API void AppendToStringImpl(FAllocationContext Context, FUtf8StringBuilderBase& Builder, EValueStringFormat Format, TSet<const void*>& VisitedObjects, uint32 RecursionDepth);
 
    static void SerializeLayout(FAllocationContext Context, VRational*& This, FStructuredArchiveVisitor& Visitor);
    COREUOBJECT_API void SerializeImpl(FAllocationContext Context, FStructuredArchiveVisitor& Visitor);
 
private:
    VRational(FAllocationContext Context, VInt InNumerator, VInt InDenominator)
        : VHeapValue(Context, &GlobalTrivialEmergentType.Get(Context))
        , bIsReduced(false)
    {
        checkSlow(!InDenominator.IsZero());
        Numerator.Set(Context, InNumerator);
        Denominator.Set(Context, InDenominator);
    }
 
    bool bIsReduced;
};
 
} // namespace Verse
#endif // WITH_VERSE_VM