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using System.IO;
using Mono.Cecil;
using Mono.Cecil.Cil;
using Mono.Cecil.Pdb;
namespace StardewModdingAPI.Framework.ModLoading.Symbols
{
/// <summary>Reads symbol data for an assembly.</summary>
internal class SymbolReader : ISymbolReader
{
/*********
** Fields
*********/
/// <summary>The module for which to read symbols.</summary>
private readonly ModuleDefinition Module;
/// <summary>The symbol file stream.</summary>
private readonly Stream Stream;
/// <summary>The underlying symbol reader.</summary>
private ISymbolReader Reader;
/*********
** Public methods
*********/
/// <summary>Construct an instance.</summary>
/// <param name="module">The module for which to read symbols.</param>
/// <param name="stream">The symbol file stream.</param>
public SymbolReader(ModuleDefinition module, Stream stream)
{
this.Module = module;
this.Stream = stream;
this.Reader = new NativePdbReaderProvider().GetSymbolReader(module, stream);
}
/// <summary>Get the symbol writer provider for the assembly.</summary>
public ISymbolWriterProvider GetWriterProvider()
{
return new PortablePdbWriterProvider();
}
/// <summary>Process a debug header in the symbol file.</summary>
/// <param name="header">The debug header.</param>
public bool ProcessDebugHeader(ImageDebugHeader header)
{
try
{
return this.Reader.ProcessDebugHeader(header);
}
catch
{
this.Reader.Dispose();
this.Reader = new PortablePdbReaderProvider().GetSymbolReader(this.Module, this.Stream);
return this.Reader.ProcessDebugHeader(header);
}
}
/// <summary>Read the method debug information for a method in the assembly.</summary>
/// <param name="method">The method definition.</param>
public MethodDebugInformation Read(MethodDefinition method)
{
return this.Reader.Read(method);
}
/// <inheritdoc />
public void Dispose()
{
this.Reader.Dispose();
}
}
}
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