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70 lines
1.9 KiB
70 lines
1.9 KiB
3 years ago
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#if FEAT_COMPILER
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using System;
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#if FEAT_IKVM
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using IKVM.Reflection.Emit;
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using Type = IKVM.Reflection.Type;
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#else
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using System.Reflection.Emit;
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#endif
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namespace ProtoBuf.Compiler
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{
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internal sealed class Local : IDisposable
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{
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// public static readonly Local InputValue = new Local(null, null);
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LocalBuilder value;
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public Type Type { get { return type; } }
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public Local AsCopy()
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{
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if (ctx == null) return this; // can re-use if context-free
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return new Local(value, this.type);
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}
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internal LocalBuilder Value
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{
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get
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{
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if (value == null)
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{
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throw new ObjectDisposedException(GetType().Name);
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}
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return value;
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}
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}
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CompilerContext ctx;
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public void Dispose()
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{
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if (ctx != null)
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{
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// only *actually* dispose if this is context-bound; note that non-bound
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// objects are cheekily re-used, and *must* be left intact agter a "using" etc
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ctx.ReleaseToPool(value);
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value = null;
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ctx = null;
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}
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}
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private Local(LocalBuilder value, Type type)
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{
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this.value = value;
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this.type = type;
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}
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private readonly Type type;
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internal Local(Compiler.CompilerContext ctx, Type type)
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{
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this.ctx = ctx;
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if (ctx != null) { value = ctx.GetFromPool(type); }
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this.type = type;
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}
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internal bool IsSame(Local other)
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{
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if((object)this == (object)other) return true;
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object ourVal = value; // use prop to ensure obj-disposed etc
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return other != null && ourVal == (object)(other.value);
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}
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}
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}
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#endif
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