105 lines
2.8 KiB
C#
105 lines
2.8 KiB
C#
//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// Copyright (C) Lluis Sanchez Gual, 2004
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//
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#if !FULL_AOT_RUNTIME
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using System;
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using System.Reflection;
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using System.Reflection.Emit;
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namespace Mono.CodeGeneration
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{
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public class CodeNeg: CodeExpression
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{
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CodeExpression exp;
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public CodeNeg (CodeExpression exp)
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{
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this.exp = exp;
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if (!exp.IsNumber)
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throw new InvalidOperationException ("Operator '-' cannot be applied to operand of type '" + exp.GetResultType().FullName + "'");
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}
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public override void Generate (ILGenerator gen)
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{
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exp.Generate (gen);
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gen.Emit (OpCodes.Neg);
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}
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public override void PrintCode (CodeWriter cp)
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{
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cp.Write ("-");
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exp.PrintCode (cp);
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}
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public override Type GetResultType ()
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{
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return exp.GetResultType();
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}
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}
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public class CodeNot: CodeConditionExpression
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{
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CodeExpression exp;
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public CodeNot (CodeExpression exp)
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{
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this.exp = exp;
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if (exp.GetResultType() != typeof(bool))
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throw new InvalidOperationException ("Operator '!' cannot be applied to operand of type '" + exp.GetResultType().FullName + "'");
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}
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public override void Generate (ILGenerator gen)
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{
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exp.Generate (gen);
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gen.Emit (OpCodes.Ldc_I4_0);
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gen.Emit (OpCodes.Ceq);
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}
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public override void GenerateForBranch (ILGenerator gen, Label label, bool branchCase)
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{
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if (exp is CodeConditionExpression) {
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((CodeConditionExpression)exp).GenerateForBranch (gen, label, !branchCase);
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}
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else {
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exp.Generate (gen);
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if (branchCase)
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gen.Emit (OpCodes.Brfalse, label);
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else
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gen.Emit (OpCodes.Brtrue, label);
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}
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}
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public override void PrintCode (CodeWriter cp)
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{
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cp.Write ("!");
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exp.PrintCode (cp);
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}
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public override Type GetResultType ()
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{
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return typeof(bool);
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}
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}
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}
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#endif
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