DbgLanguageDebugInfo CreateDebugInfo(IDbgDotNetCodeLocation location, CancellationToken cancellationToken)
{
const DbgLoadModuleOptions options = DbgLoadModuleOptions.AutoLoaded;
ModuleDef mdModule;
if (location.DbgModule is DbgModule dbgModule)
{
mdModule = dbgMetadataService.TryGetMetadata(dbgModule, options);
}
else
{
mdModule = dbgMetadataService.TryGetMetadata(location.Module, options);
}
Debug.Assert(mdModule != null);
if (mdModule == null)
{
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var method = mdModule.ResolveToken(location.Token) as MethodDef;
Debug.Assert(method != null);
if (method == null)
{
return(null);
}
var context = new DecompilationContext {
CancellationToken = cancellationToken,
CalculateBinSpans = true,
};
var output = DecompilerOutputImplCache.Alloc();
output.Initialize(method.MDToken.Raw);
//TODO: Whenever the decompiler options change, we need to invalidate our cache and every
// single DbgLanguageDebugInfo instance.
decompiler.Decompile(method, output, context);
var methodDebugInfo = output.TryGetMethodDebugInfo();
DecompilerOutputImplCache.Free(ref output);
cancellationToken.ThrowIfCancellationRequested();
Debug.Assert(methodDebugInfo != null);
if (methodDebugInfo == null)
{
return(null);
}
// We don't support EnC so the version is always 1
const int methodVersion = 1;
return(new DbgLanguageDebugInfo(methodDebugInfo, methodVersion, location.Offset));
}
DbgLanguageDebugInfo GetOrCreateDebugInfo(RuntimeState state, IDbgDotNetCodeLocation location, CancellationToken cancellationToken)
{
DbgLanguageDebugInfoKey key;
if (location.DbgModule is DbgModule dbgModule)
{
key = new DbgLanguageDebugInfoKey(dbgModule, location.Token);
}
else
{
key = new DbgLanguageDebugInfoKey(location.Module, location.Token);
}
var debugInfos = state.DebugInfos;
lock (state.LockObj) {
for (int i = debugInfos.Count - 1; i >= 0; i--)
{
var info = debugInfos[i];
if (info.key.Equals(key))
{
if (i != debugInfos.Count - 1)
{
debugInfos.RemoveAt(i);
debugInfos.Add(info);
}
return(info.debugInfo);
}
}
}
var debugInfo = CreateDebugInfo(location, cancellationToken);
if (debugInfo == null)
{
return(null);
}
lock (state.LockObj) {
if (debugInfos.Count == RuntimeState.MAX_CACHED_DEBUG_INFOS)
{
debugInfos.RemoveAt(0);
}
debugInfos.Add((key, debugInfo));
}
return(debugInfo);
}
DbgLanguageDebugInfo?CreateDebugInfo(DbgEvaluationContext context, IDbgDotNetCodeLocation location, CancellationToken cancellationToken)
{
var result = dbgMethodDebugInfoProvider.GetMethodDebugInfo(context.Runtime, decompiler, location, cancellationToken);
if (result.DebugInfo is null)
{
return(null);
}
var runtime = context.Runtime.GetDotNetRuntime();
if (location.DbgModule is null || !runtime.TryGetMethodToken(location.DbgModule, (int)location.Token, out int methodToken, out int localVarSigTok))
{
methodToken = (int)location.Token;
localVarSigTok = (int)((result.StateMachineDebugInfo ?? result.DebugInfo)?.Method.Body?.LocalVarSigTok ?? 0);
}
return(new DbgLanguageDebugInfo(result.DebugInfo, methodToken, localVarSigTok, result.MethodVersion, location.Offset));
}
DbgLanguageDebugInfo CreateDebugInfo(DbgEvaluationContext context, IDbgDotNetCodeLocation location, CancellationToken cancellationToken)
{
var result = dbgMethodDebugInfoProvider.GetMethodDebugInfo(context.Runtime, decompiler, location, cancellationToken);
if (result.DebugInfoOrNull == null)
{
return(null);
}
var runtime = context.Runtime.GetDotNetRuntime();
if (location.DbgModule == null || !runtime.TryGetMethodToken(location.DbgModule, (int)location.Token, out int methodToken, out int localVarSigTok))
{
methodToken = (int)location.Token;
localVarSigTok = (int)result.LocalVarSigTok;
}
// We don't support EnC so the version is always 1
const int methodVersion = 1;
return(new DbgLanguageDebugInfo(result.DebugInfoOrNull, methodToken, localVarSigTok, methodVersion, location.Offset));
}
//TODO: If decompiler settings change, we need to invalidate the cached data in DbgEvaluationContext, see decompiler.Settings.VersionChanged
DbgLanguageDebugInfo GetOrCreateDebugInfo(DbgEvaluationContext context, RuntimeState state, IDbgDotNetCodeLocation location, CancellationToken cancellationToken)
{
DbgLanguageDebugInfoKey key;
if (location.DbgModule is DbgModule dbgModule)
{
key = new DbgLanguageDebugInfoKey(dbgModule, location.Token);
}
else
{
key = new DbgLanguageDebugInfoKey(location.Module, location.Token);
}
var debugInfos = state.DebugInfos;
lock (state.LockObj) {
if (debugInfos.Count > 0 && debugInfos[0].debugInfo.MethodDebugInfo.DebugInfoVersion != decompiler.Settings.Version)
{
debugInfos.Clear();
}
for (int i = debugInfos.Count - 1; i >= 0; i--)
{
var info = debugInfos[i];
if (info.key.Equals(key))
{
if (i != debugInfos.Count - 1)
{
debugInfos.RemoveAt(i);
debugInfos.Add(info);
}
return(info.debugInfo);
}
}
}
var debugInfo = CreateDebugInfo(context, location, cancellationToken);
if (debugInfo == null)
{
return(null);
}
lock (state.LockObj) {
if (debugInfos.Count == RuntimeState.MAX_CACHED_DEBUG_INFOS)
{
debugInfos.RemoveAt(0);
}
debugInfos.Add((key, debugInfo));
}
return(debugInfo);
}
DbgLanguageDebugInfo CreateDebugInfo(DbgEvaluationContext context, IDbgDotNetCodeLocation location, CancellationToken cancellationToken)
{
const DbgLoadModuleOptions options = DbgLoadModuleOptions.AutoLoaded;
ModuleDef mdModule;
if (location.DbgModule is DbgModule dbgModule)
{
mdModule = dbgMetadataService.TryGetMetadata(dbgModule, options);
}
else
{
dbgModule = null;
mdModule = dbgMetadataService.TryGetMetadata(location.Module, options);
}
Debug.Assert(mdModule != null);
if (mdModule == null)
{
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var method = mdModule.ResolveToken(location.Token) as MethodDef;
// Could be null if it's a dynamic assembly. It will get refreshed later and we'll get called again.
if (method == null)
{
return(null);
}
var runtime = context.Runtime.GetDotNetRuntime();
int methodToken, localVarSigTok;
if (dbgModule == null || !runtime.TryGetMethodToken(dbgModule, method.MDToken.ToInt32(), out methodToken, out localVarSigTok))
{
methodToken = method.MDToken.ToInt32();
localVarSigTok = (int)(method.Body?.LocalVarSigTok ?? 0);
}
var decContext = new DecompilationContext {
CancellationToken = cancellationToken,
CalculateBinSpans = true,
};
var output = DecompilerOutputImplCache.Alloc();
output.Initialize(method.MDToken.Raw);
//TODO: Whenever the decompiler options change, we need to invalidate our cache and every
// single DbgLanguageDebugInfo instance.
decompiler.Decompile(method, output, decContext);
var methodDebugInfo = output.TryGetMethodDebugInfo();
DecompilerOutputImplCache.Free(ref output);
cancellationToken.ThrowIfCancellationRequested();
Debug.Assert(methodDebugInfo != null);
if (methodDebugInfo == null)
{
return(null);
}
// We don't support EnC so the version is always 1
const int methodVersion = 1;
return(new DbgLanguageDebugInfo(methodDebugInfo, methodToken, localVarSigTok, methodVersion, location.Offset));
}
public abstract MethodDebugInfoResult GetMethodDebugInfo(DbgRuntime runtime, IDecompiler decompiler, IDbgDotNetCodeLocation location, CancellationToken cancellationToken);
