Steve Pham
b4a2edec6a
* Final update copyright headers to reference license files at the repo root Signed-off-by: spham <spham@amazon.com> * Fix copyright validator unit tests to support the stale O3DE header scenario Signed-off-by: spham <spham@amazon.com>
62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) Contributors to the Open 3D Engine Project. For complete copyright and license terms please see the LICENSE at the root of this distribution.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0 OR MIT
|
|
*
|
|
*/
|
|
#pragma once
|
|
|
|
#include <AzCore/Memory/SystemAllocator.h>
|
|
|
|
#include <ExpressionEngine/ExpressionElementParser.h>
|
|
|
|
namespace ExpressionEvaluation
|
|
{
|
|
class MathExpressionOperators
|
|
: public ExpressionElementParser
|
|
{
|
|
public:
|
|
AZ_CLASS_ALLOCATOR(MathExpressionOperators, AZ::SystemAllocator, 0);
|
|
|
|
enum MathExpressionOperatorPriority
|
|
{
|
|
Unknown = -1,
|
|
AddSubtract = 0,
|
|
MultiplyDivideModulo = 1,
|
|
Power = 2,
|
|
Function = 3
|
|
};
|
|
|
|
enum MathOperatorId
|
|
{
|
|
Add = 0,
|
|
Subtract,
|
|
Multiply,
|
|
Divide,
|
|
Modulo
|
|
};
|
|
|
|
static ElementInformation AddOperator();
|
|
static ElementInformation SubtractOperator();
|
|
static ElementInformation MultiplyOperator();
|
|
static ElementInformation DivideOperator();
|
|
static ElementInformation ModuloOperator();
|
|
|
|
MathExpressionOperators() = default;
|
|
~MathExpressionOperators() override = default;
|
|
|
|
ExpressionParserId GetParserId() const override;
|
|
|
|
ParseResult ParseElement(const AZStd::string& inputText, size_t offset) const override;
|
|
void EvaluateToken(const ElementInformation& elementInformation, ExpressionResultStack& evaluationStack) const override;
|
|
|
|
private:
|
|
|
|
ExpressionResult OnAddOperator(const AZStd::any& leftValue, const AZStd::any& rightValue) const;
|
|
ExpressionResult OnSubtractOperator(const AZStd::any& leftValue, const AZStd::any& rightValue) const;
|
|
ExpressionResult OnMultiplyOperator(const AZStd::any& leftValue, const AZStd::any& rightValue) const;
|
|
ExpressionResult OnDivideOperator(const AZStd::any& leftValue, const AZStd::any& rightValue) const;
|
|
ExpressionResult OnModuloOperator(const AZStd::any& leftValue, const AZStd::any& rightValue) const;
|
|
};
|
|
}
|