84 lines
2.6 KiB
C#
84 lines
2.6 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 CodeArgumentReference: CodeValueReference
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{
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Type type;
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int argNum;
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string name;
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public CodeArgumentReference (Type type, int argNum, string name)
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{
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this.type = type;
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this.argNum = argNum;
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this.name = name;
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}
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public override void Generate (ILGenerator gen)
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{
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switch (argNum) {
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case 0: gen.Emit (OpCodes.Ldarg_0); break;
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case 1: gen.Emit (OpCodes.Ldarg_1); break;
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case 2: gen.Emit (OpCodes.Ldarg_2); break;
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case 3: gen.Emit (OpCodes.Ldarg_3); break;
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default: gen.Emit (OpCodes.Ldarg, argNum); break;
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}
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if (type.IsByRef)
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CodeGenerationHelper.LoadFromPtr (gen, type.GetElementType ());
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}
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public override void GenerateSet (ILGenerator gen, CodeExpression value)
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{
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if (type.IsByRef) {
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gen.Emit (OpCodes.Ldarg, argNum);
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value.Generate (gen);
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CodeGenerationHelper.GenerateSafeConversion (gen, type.GetElementType (), value.GetResultType ());
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CodeGenerationHelper.SaveToPtr (gen, type.GetElementType ());
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}
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else {
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value.Generate (gen);
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CodeGenerationHelper.GenerateSafeConversion (gen, type, value.GetResultType ());
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gen.Emit (OpCodes.Starg, argNum);
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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 (name);
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}
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public override Type GetResultType ()
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{
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return type.IsByRef ? type.GetElementType () : type;
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}
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}
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}
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#endif
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