/Mono.Cecil/Mono.Cecil.Cil/Symbols.cs
http://github.com/icsharpcode/ILSpy · C# · 277 lines · 186 code · 64 blank · 27 comment · 23 complexity · 678b957aad071c42e3315da853be20f3 MD5 · raw file
- //
- // Symbols.cs
- //
- // Author:
- // Jb Evain (jbevain@gmail.com)
- //
- // Copyright (c) 2008 - 2011 Jb Evain
- //
- // Permission is hereby granted, free of charge, to any person obtaining
- // a copy of this software and associated documentation files (the
- // "Software"), to deal in the Software without restriction, including
- // without limitation the rights to use, copy, modify, merge, publish,
- // distribute, sublicense, and/or sell copies of the Software, and to
- // permit persons to whom the Software is furnished to do so, subject to
- // the following conditions:
- //
- // The above copyright notice and this permission notice shall be
- // included in all copies or substantial portions of the Software.
- //
- // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- //
- using System;
- using System.IO;
- using System.Runtime.InteropServices;
- using SR = System.Reflection;
- using Mono.Collections.Generic;
- namespace Mono.Cecil.Cil {
- [StructLayout (LayoutKind.Sequential)]
- public struct ImageDebugDirectory {
- public int Characteristics;
- public int TimeDateStamp;
- public short MajorVersion;
- public short MinorVersion;
- public int Type;
- public int SizeOfData;
- public int AddressOfRawData;
- public int PointerToRawData;
- }
- public sealed class Scope : IVariableDefinitionProvider {
- Instruction start;
- Instruction end;
- Collection<Scope> scopes;
- Collection<VariableDefinition> variables;
- public Instruction Start {
- get { return start; }
- set { start = value; }
- }
- public Instruction End {
- get { return end; }
- set { end = value; }
- }
- public bool HasScopes {
- get { return !scopes.IsNullOrEmpty (); }
- }
- public Collection<Scope> Scopes {
- get {
- if (scopes == null)
- scopes = new Collection<Scope> ();
- return scopes;
- }
- }
- public bool HasVariables {
- get { return !variables.IsNullOrEmpty (); }
- }
- public Collection<VariableDefinition> Variables {
- get {
- if (variables == null)
- variables = new Collection<VariableDefinition> ();
- return variables;
- }
- }
- }
- public struct InstructionSymbol {
- public readonly int Offset;
- public readonly SequencePoint SequencePoint;
- public InstructionSymbol (int offset, SequencePoint sequencePoint)
- {
- this.Offset = offset;
- this.SequencePoint = sequencePoint;
- }
- }
- public sealed class MethodSymbols {
- internal int code_size;
- internal string method_name;
- internal MetadataToken method_token;
- internal MetadataToken local_var_token;
- internal Collection<VariableDefinition> variables;
- internal Collection<InstructionSymbol> instructions;
- public bool HasVariables {
- get { return !variables.IsNullOrEmpty (); }
- }
- public Collection<VariableDefinition> Variables {
- get {
- if (variables == null)
- variables = new Collection<VariableDefinition> ();
- return variables;
- }
- }
- public Collection<InstructionSymbol> Instructions {
- get {
- if (instructions == null)
- instructions = new Collection<InstructionSymbol> ();
- return instructions;
- }
- }
- public int CodeSize {
- get { return code_size; }
- }
- public string MethodName {
- get { return method_name; }
- }
- public MetadataToken MethodToken {
- get { return method_token; }
- }
- public MetadataToken LocalVarToken {
- get { return local_var_token; }
- }
- internal MethodSymbols (string methodName)
- {
- this.method_name = methodName;
- }
- public MethodSymbols (MetadataToken methodToken)
- {
- this.method_token = methodToken;
- }
- }
- public delegate Instruction InstructionMapper (int offset);
- public interface ISymbolReader : IDisposable {
- bool ProcessDebugHeader (ImageDebugDirectory directory, byte [] header);
- void Read (MethodBody body, InstructionMapper mapper);
- void Read (MethodSymbols symbols);
- }
- public interface ISymbolReaderProvider {
- ISymbolReader GetSymbolReader (ModuleDefinition module, string fileName);
- ISymbolReader GetSymbolReader (ModuleDefinition module, Stream symbolStream);
- }
- static class SymbolProvider {
- static readonly string symbol_kind = Type.GetType ("Mono.Runtime") != null ? "Mdb" : "Pdb";
- static SR.AssemblyName GetPlatformSymbolAssemblyName ()
- {
- var cecil_name = typeof (SymbolProvider).Assembly.GetName ();
- var name = new SR.AssemblyName {
- Name = "Mono.Cecil." + symbol_kind,
- Version = cecil_name.Version,
- };
- name.SetPublicKeyToken (cecil_name.GetPublicKeyToken ());
- return name;
- }
- static Type GetPlatformType (string fullname)
- {
- var type = Type.GetType (fullname);
- if (type != null)
- return type;
- var assembly_name = GetPlatformSymbolAssemblyName ();
- type = Type.GetType (fullname + ", " + assembly_name.FullName);
- if (type != null)
- return type;
- try {
- var assembly = SR.Assembly.Load (assembly_name);
- if (assembly != null)
- return assembly.GetType (fullname);
- } catch (FileNotFoundException) {
- #if !CF
- } catch (FileLoadException) {
- #endif
- }
- return null;
- }
- static ISymbolReaderProvider reader_provider;
- public static ISymbolReaderProvider GetPlatformReaderProvider ()
- {
- if (reader_provider != null)
- return reader_provider;
- var type = GetPlatformType (GetProviderTypeName ("ReaderProvider"));
- if (type == null)
- return null;
- return reader_provider = (ISymbolReaderProvider) Activator.CreateInstance (type);
- }
- static string GetProviderTypeName (string name)
- {
- return "Mono.Cecil." + symbol_kind + "." + symbol_kind + name;
- }
- #if !READ_ONLY
- static ISymbolWriterProvider writer_provider;
- public static ISymbolWriterProvider GetPlatformWriterProvider ()
- {
- if (writer_provider != null)
- return writer_provider;
- var type = GetPlatformType (GetProviderTypeName ("WriterProvider"));
- if (type == null)
- return null;
- return writer_provider = (ISymbolWriterProvider) Activator.CreateInstance (type);
- }
- #endif
- }
- #if !READ_ONLY
- public interface ISymbolWriter : IDisposable {
- bool GetDebugHeader (out ImageDebugDirectory directory, out byte [] header);
- void Write (MethodBody body);
- void Write (MethodSymbols symbols);
- }
- public interface ISymbolWriterProvider {
- ISymbolWriter GetSymbolWriter (ModuleDefinition module, string fileName);
- ISymbolWriter GetSymbolWriter (ModuleDefinition module, Stream symbolStream);
- }
- #endif
- }