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using System;
using System.Collections.Generic;
using System.IO;
using Mono.Cecil;
using Mono.Cecil.Cil;
namespace StardewModdingAPI.Framework.ModLoading.Symbols
{
/// <summary>Provides assembly symbol readers for Mono.Cecil.</summary>
internal class SymbolReaderProvider : ISymbolReaderProvider
{
/*********
** Fields
*********/
/// <summary>The underlying symbol reader provider.</summary>
private readonly ISymbolReaderProvider BaseProvider = new DefaultSymbolReaderProvider(throwIfNoSymbol: false);
/// <summary>The symbol data loaded by absolute assembly path.</summary>
private readonly Dictionary<string, Stream> SymbolsByAssemblyPath = new Dictionary<string, Stream>(StringComparer.OrdinalIgnoreCase);
/*********
** Public methods
*********/
/// <summary>Add the symbol file for a given assembly name, if it's not already registered.</summary>
/// <param name="fileName">The assembly file name.</param>
/// <param name="getSymbolStream">Get the raw file stream for the symbols.</param>
public void TryAddSymbolData(string fileName, Func<Stream> getSymbolStream)
{
if (!this.SymbolsByAssemblyPath.ContainsKey(fileName))
this.SymbolsByAssemblyPath.Add(fileName, getSymbolStream());
}
/// <summary>Get a symbol reader for a given module and assembly name.</summary>
/// <param name="module">The loaded assembly module.</param>
/// <param name="fileName">The assembly file name.</param>
public ISymbolReader GetSymbolReader(ModuleDefinition module, string fileName)
{
return this.SymbolsByAssemblyPath.TryGetValue(module.Name, out Stream symbolData)
? new SymbolReader(module, symbolData)
: this.BaseProvider.GetSymbolReader(module, fileName);
}
/// <summary>Get a symbol reader for a given module and symbol stream.</summary>
/// <param name="module">The loaded assembly module.</param>
/// <param name="symbolStream">The loaded symbol file stream.</param>
public ISymbolReader GetSymbolReader(ModuleDefinition module, Stream symbolStream)
{
return this.SymbolsByAssemblyPath.TryGetValue(module.Name, out Stream symbolData)
? new SymbolReader(module, symbolData)
: this.BaseProvider.GetSymbolReader(module, symbolStream);
}
}
}
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