111 lines
3.1 KiB
C#
111 lines
3.1 KiB
C#
//
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// BlockWithLabels.cs
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//
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// Authors:
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// Alexander Chebaturkin (chebaturkin@gmail.com)
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//
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// Copyright (C) 2011 Alexander Chebaturkin
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//
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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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using System;
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using System.Collections.Generic;
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using Mono.CodeContracts.Static.ControlFlow.Subroutines;
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namespace Mono.CodeContracts.Static.ControlFlow.Blocks {
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class BlockWithLabels<Label> : BlockBase, IEquatable<BlockWithLabels<Label>> {
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private readonly List<Label> labels;
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public BlockWithLabels (SubroutineBase<Label> subroutine, ref int idGen)
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: base (subroutine, ref idGen)
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{
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this.labels = new List<Label> ();
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}
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public override int Count
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{
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get { return this.labels.Count; }
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}
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protected new SubroutineBase<Label> Subroutine
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{
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get { return (SubroutineBase<Label>) base.Subroutine; }
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}
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#region IEquatable<BlockWithLabels<Label>> Members
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public bool Equals (BlockWithLabels<Label> other)
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{
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return this == other;
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}
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#endregion
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public override int GetILOffset (APC pc)
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{
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Label label;
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if (TryGetLabel (pc.Index, out label))
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return Subroutine.GetILOffset (label);
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return 0;
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}
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public void AddLabel (Label label)
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{
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this.labels.Add (label);
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}
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public bool TryGetLastLabel (out Label label)
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{
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if (this.labels.Count > 0) {
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label = this.labels [this.labels.Count - 1];
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return true;
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}
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label = default(Label);
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return false;
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}
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public virtual bool TryGetLabel (int index, out Label label)
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{
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if (index < this.labels.Count) {
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label = this.labels [index];
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return true;
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}
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label = default(Label);
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return false;
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}
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public override string ToString ()
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{
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return string.Format ("{0}: {1}", this.Index, GetType ().Name);
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}
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public override Result ForwardDecode<Data, Result, Visitor> (APC pc, Visitor visitor, Data data)
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{
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Label label;
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if (TryGetLabel (pc.Index, out label))
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return Subroutine.CodeProvider.Decode<LabelAdapter<Label, Data, Result, Visitor>, Data, Result> (label, new LabelAdapter<Label, Data, Result, Visitor> (visitor, pc), data);
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return visitor.Nop (pc, data);
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}
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}
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}
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