25 lines
598 B
C#
25 lines
598 B
C#
namespace tlang
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{
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internal class SubtractNode : Node
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{
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public Node Left {get;set;}
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public Node Right {get;set;}
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public SubtractNode(Node left, Node right)
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{
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this.Left = left;
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this.Right = right;
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}
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public override TObject Execute(IScopeEnvironment nodeEnv)
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{
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var l = Left.Execute(nodeEnv) as TNumber;
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var r = Right.Execute(nodeEnv) as TNumber;
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if(l != null && r != null)
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return new TNumber(l.Value - r.Value);
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return new TNull();
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}
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}
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} |