Files
stgsharp/StgSharp.Script/Express/ExpAstNode/ExpBinaryOperatorNode.cs
T

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6.2 KiB
C#

//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
// file="ExpBinaryOperatorNode.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.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
namespace StgSharp.Script.Express
{
public class ExpBinaryOperatorNode : ExpBaseNode
{
private ExpBaseNode _left;
private ExpBaseNode _right;
private ExpTypeSource _returnType;
public ExpBinaryOperatorNode( string name ) : base( name, null! ) { }
public ExpBinaryOperatorNode(
string source,
ExpSchema context,
ExpBaseNode left,
ExpBaseNode right )
: base( source, context )
{
if( !left.EqualityTypeConvert
.IsConvertable( right.EqualityTypeConvert ) ) {
throw new InvalidCastException(
$"Cannot convert element {left.EqualityTypeConvert} to {right.EqualityTypeConvert}" );
}
_left = left;
_right = right;
}
public override ExpBaseNode Left => _left;
public override ExpBaseNode Right => _right;
public override IExpElementSource EqualityTypeConvert => _returnType;
public static ExpBinaryOperatorNode Add(
ExpBaseNode left,
ExpBaseNode right )
{
if( !left.IsNumber && !right.IsNumber ) {
throw new ExpInvalidTypeException(
"Number", left.EqualityTypeConvert.Name );
}
bool isFloat =
( left._nodeFlag | ExpNodeFlag.BuiltinType_Float ) == 0 || ( right._nodeFlag | ExpNodeFlag.BuiltinType_Float ) ==
0;
return new ExpBinaryOperatorNode( ExpCompile.KeyWord.ADD )
{
_returnType = isFloat ? null : null,
_nodeFlag = ExpNodeFlag.Operator_Binary | ExpNodeFlag.BuiltinType_Number,
CodeConvertTemplate = "{0} + {1}",
};
}
public static ExpBinaryOperatorNode Div(
ExpBaseNode left,
ExpBaseNode right )
{
if( !left.IsNumber && !right.IsNumber ) {
throw new ExpInvalidTypeException(
"Number", left.EqualityTypeConvert.Name );
}
bool isFloat =
( left._nodeFlag | ExpNodeFlag.BuiltinType_Float ) == 0 || ( right._nodeFlag | ExpNodeFlag.BuiltinType_Float ) ==
0;
return new ExpBinaryOperatorNode( ExpCompile.KeyWord.DIV )
{
_returnType = isFloat ? null : null,
_nodeFlag = ExpNodeFlag.Operator_Binary | ExpNodeFlag.BuiltinType_Number,
CodeConvertTemplate = "{0} / {1}",
};
}
public static ExpBinaryOperatorNode Mul(
ExpBaseNode left,
ExpBaseNode right )
{
if( !left.IsNumber && !right.IsNumber ) {
throw new ExpInvalidTypeException(
"Number", left.EqualityTypeConvert.Name );
}
bool isFloat =
( left._nodeFlag | ExpNodeFlag.BuiltinType_Float ) == 0 || ( right._nodeFlag | ExpNodeFlag.BuiltinType_Float ) ==
0;
return new ExpBinaryOperatorNode( ExpCompile.KeyWord.MUL )
{
_returnType = isFloat ? null : null,
_nodeFlag = ExpNodeFlag.Operator_Binary | ExpNodeFlag.BuiltinType_Number,
CodeConvertTemplate = "{0} * {1}",
};
}
public static ExpBinaryOperatorNode Sub(
ExpBaseNode left,
ExpBaseNode right )
{
if( !left.IsNumber && !right.IsNumber ) {
throw new ExpInvalidTypeException(
"Number", left.EqualityTypeConvert.Name );
}
bool isFloat =
( left._nodeFlag | ExpNodeFlag.BuiltinType_Float ) == 0 || ( right._nodeFlag | ExpNodeFlag.BuiltinType_Float ) ==
0;
return new ExpBinaryOperatorNode( ExpCompile.KeyWord.SUB )
{
_returnType = isFloat ? : null,
_nodeFlag = ExpNodeFlag.Operator_Binary | ExpNodeFlag.BuiltinType_Number,
CodeConvertTemplate = "{0} - {1}",
};
}
}
}