40 lines
1.0 KiB
C#
40 lines
1.0 KiB
C#
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namespace tlang
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{
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internal class RightShiftNode : 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 RightShiftNode(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);
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var r = Right.Execute(nodeEnv);
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var lnum = l as TNumber;
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var rnum = r as TNumber;
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var dleft = l as TDictionary;
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if(dleft != null)
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{
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if(dleft.MemberExists("rs"))
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{
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var mbm = dleft["rs"] as ICallable;
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if(mbm != null)
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{
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return mbm.Call(r);
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}
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}
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}
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if(lnum != null && rnum != null)
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return new TNumber((long)lnum.Value >> (int)rnum.Value);
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return new TNull();
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}
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}
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}
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