134 lines
3.2 KiB
C#
134 lines
3.2 KiB
C#
//
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// Instruction.cs
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//
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// Author:
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// Jb Evain (jbevain@gmail.com)
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//
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// (C) 2005 Jb Evain
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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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namespace Mono.Cecil.Cil {
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internal sealed class Instruction : ICodeVisitable {
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int m_offset;
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OpCode m_opCode;
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object m_operand;
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Instruction m_previous;
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Instruction m_next;
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SequencePoint m_sequencePoint;
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public int Offset {
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get { return m_offset; }
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set { m_offset = value; }
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}
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public OpCode OpCode {
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get { return m_opCode; }
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set { m_opCode = value; }
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}
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public object Operand {
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get { return m_operand; }
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set { m_operand = value; }
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}
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public Instruction Previous {
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get { return m_previous; }
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set { m_previous = value; }
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}
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public Instruction Next {
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get { return m_next; }
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set { m_next = value; }
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}
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public SequencePoint SequencePoint {
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get { return m_sequencePoint; }
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set { m_sequencePoint = value; }
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}
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internal Instruction (int offset, OpCode opCode, object operand) : this (offset, opCode)
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{
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m_operand = operand;
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}
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internal Instruction (int offset, OpCode opCode)
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{
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m_offset = offset;
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m_opCode = opCode;
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}
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internal Instruction (OpCode opCode, object operand) : this (0, opCode, operand)
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{
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}
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internal Instruction (OpCode opCode) : this (0, opCode)
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{
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}
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public int GetSize ()
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{
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int size = m_opCode.Size;
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switch (m_opCode.OperandType) {
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case OperandType.InlineSwitch:
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size += (1 + ((Instruction []) m_operand).Length) * 4;
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break;
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case OperandType.InlineI8:
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case OperandType.InlineR:
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size += 8;
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break;
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case OperandType.InlineBrTarget:
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case OperandType.InlineField:
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case OperandType.InlineI:
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case OperandType.InlineMethod:
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case OperandType.InlineString:
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case OperandType.InlineTok:
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case OperandType.InlineType:
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case OperandType.ShortInlineR:
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size += 4;
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break;
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case OperandType.InlineParam:
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case OperandType.InlineVar:
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size += 2;
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break;
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case OperandType.ShortInlineBrTarget:
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case OperandType.ShortInlineI:
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case OperandType.ShortInlineParam:
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case OperandType.ShortInlineVar:
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size += 1;
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break;
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}
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return size;
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}
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public void Accept (ICodeVisitor visitor)
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{
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visitor.VisitInstruction (this);
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}
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}
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}
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