internal static TResult CompileWithRetry <TResult>(
ImmutableArray <MetadataBlock> metadataBlocks,
DiagnosticFormatter formatter,
CreateContextDelegate createContext,
CompileDelegate <TResult> compile,
DkmUtilities.GetMetadataBytesPtrFunction getMetaDataBytesPtr,
out string errorMessage)
{
TResult compileResult;
PooledHashSet <AssemblyIdentity> assembliesLoadedInRetryLoop = null;
bool tryAgain;
do
{
errorMessage = null;
var context = createContext(metadataBlocks, useReferencedModulesOnly: false);
var diagnostics = DiagnosticBag.GetInstance();
compileResult = compile(context, diagnostics);
tryAgain = false;
if (diagnostics.HasAnyErrors())
{
bool useReferencedModulesOnly;
ImmutableArray <AssemblyIdentity> missingAssemblyIdentities;
errorMessage = context.GetErrorMessageAndMissingAssemblyIdentities(
diagnostics,
formatter,
preferredUICulture: null,
useReferencedModulesOnly: out useReferencedModulesOnly,
missingAssemblyIdentities: out missingAssemblyIdentities);
if (useReferencedModulesOnly)
{
Debug.Assert(missingAssemblyIdentities.IsEmpty);
var otherContext = createContext(metadataBlocks, useReferencedModulesOnly: true);
var otherDiagnostics = DiagnosticBag.GetInstance();
var otherResult = compile(otherContext, otherDiagnostics);
if (!otherDiagnostics.HasAnyErrors())
{
errorMessage = null;
compileResult = otherResult;
}
otherDiagnostics.Free();
}
else
{
if (!missingAssemblyIdentities.IsEmpty)
{
if (assembliesLoadedInRetryLoop == null)
{
assembliesLoadedInRetryLoop = PooledHashSet <AssemblyIdentity> .GetInstance();
}
// If any identities failed to add (they were already in the list), then don't retry.
if (assembliesLoadedInRetryLoop.AddAll(missingAssemblyIdentities))
{
tryAgain = ShouldTryAgainWithMoreMetadataBlocks(getMetaDataBytesPtr, missingAssemblyIdentities, ref metadataBlocks);
}
}
}
}
diagnostics.Free();
} while (tryAgain);
assembliesLoadedInRetryLoop?.Free();
return(compileResult);
}
internal static TResult CompileWithRetry <TResult>(
ImmutableArray <MetadataBlock> metadataBlocks,
DiagnosticFormatter formatter,
CreateContextDelegate createContext,
CompileDelegate <TResult> compile,
DkmUtilities.GetMetadataBytesPtrFunction getMetaDataBytesPtr,
out string errorMessage)
{
TResult compileResult;
PooledHashSet <AssemblyIdentity> assembliesLoadedInRetryLoop = null;
bool tryAgain;
var linqLibrary = EvaluationContextBase.SystemLinqIdentity;
do
{
errorMessage = null;
var context = createContext(metadataBlocks, useReferencedModulesOnly: false);
var diagnostics = DiagnosticBag.GetInstance();
compileResult = compile(context, diagnostics);
tryAgain = false;
if (diagnostics.HasAnyErrors())
{
bool useReferencedModulesOnly;
ImmutableArray <AssemblyIdentity> missingAssemblyIdentities;
errorMessage = context.GetErrorMessageAndMissingAssemblyIdentities(
diagnostics,
formatter,
preferredUICulture: null,
linqLibrary: linqLibrary,
useReferencedModulesOnly: out useReferencedModulesOnly,
missingAssemblyIdentities: out missingAssemblyIdentities);
// If there were LINQ-related errors, we'll initially add System.Linq (set above).
// If that doesn't work, we'll fall back to System.Core for subsequent retries.
linqLibrary = EvaluationContextBase.SystemCoreIdentity;
// Can we remove the `useReferencedModulesOnly` attempt if we're only using
// modules reachable from the current module? In short, can we avoid retrying?
if (useReferencedModulesOnly)
{
Debug.Assert(missingAssemblyIdentities.IsEmpty);
var otherContext = createContext(metadataBlocks, useReferencedModulesOnly: true);
var otherDiagnostics = DiagnosticBag.GetInstance();
var otherResult = compile(otherContext, otherDiagnostics);
if (!otherDiagnostics.HasAnyErrors())
{
errorMessage = null;
compileResult = otherResult;
}
otherDiagnostics.Free();
}
else
{
if (!missingAssemblyIdentities.IsEmpty)
{
if (assembliesLoadedInRetryLoop == null)
{
assembliesLoadedInRetryLoop = PooledHashSet <AssemblyIdentity> .GetInstance();
}
// If any identities failed to add (they were already in the list), then don't retry.
if (assembliesLoadedInRetryLoop.AddAll(missingAssemblyIdentities))
{
tryAgain = ShouldTryAgainWithMoreMetadataBlocks(getMetaDataBytesPtr, missingAssemblyIdentities, ref metadataBlocks);
}
}
}
}
diagnostics.Free();
} while (tryAgain);
assembliesLoadedInRetryLoop?.Free();
return(compileResult);
}