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stgsharp/StgSharp.Script/Express/ExpAstNode/ExpUnaryOperatorNode.cs
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4.1 KiB
C#

//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
// file="ExpUnaryOperatorNode.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace StgSharp.Script.Express
{
public class ExpUnaryOperatorNode : ExpNode
{
private ExpNode _operand;
private ExpUnaryOperatorNode( string name ) : base( name ) { }
public ExpUnaryOperatorNode(
string name,
ExpNode operand,
ExpSchema context )
: base( name )
{
_operand = operand;
}
public override ExpNode Left => null!;
public override ExpNode Right => _operand;
public override IExpElementSource EqualityTypeConvert => _operand.EqualityTypeConvert;
public static ExpUnaryOperatorNode UnaryMinus( ExpNode operand )
{
if( !operand.IsNumber ) {
throw new ExpInvalidTypeException(
"Number", operand.EqualityTypeConvert.Name );
}
bool isFloat =
( operand._nodeFlag | ExpNodeFlag.BuiltinType_Float ) == 0;
return new ExpUnaryOperatorNode( ExpCompile.KeyWord.SUB )
{
_nodeFlag = ExpNodeFlag.Operator_Unary | ExpNodeFlag.BuiltinType_Number,
CodeConvertTemplate = "- {0}",
};
}
public static ExpUnaryOperatorNode UnaryNot( ExpNode operand )
{
if( ( operand._nodeFlag | ( ExpNodeFlag.BuiltinType_Logic | ExpNodeFlag.BuiltinType_Logic ) ) ==
0 ) {
throw new ExpInvalidTypeException(
"Bool or Logic", operand.EqualityTypeConvert.Name );
}
return new ExpUnaryOperatorNode( ExpCompile.KeyWord.NOT )
{
_nodeFlag = ExpNodeFlag.Operator_Unary | ExpNodeFlag.BuiltinType_Logic,
CodeConvertTemplate = "! {0}",
};
}
public static ExpUnaryOperatorNode UnaryPlus( ExpNode operand )
{
if( !operand.IsNumber ) {
throw new ExpInvalidTypeException(
"Number", operand.EqualityTypeConvert.Name );
}
bool isFloat =
( operand._nodeFlag | ExpNodeFlag.BuiltinType_Float ) == 0;
return new ExpUnaryOperatorNode( ExpCompile.KeyWord.SUB )
{
_nodeFlag = ExpNodeFlag.Operator_Unary | ExpNodeFlag.BuiltinType_Number,
CodeConvertTemplate = "+ {0}",
};
}
}
}