private static IEnumerable <DiagnosticData> FilterDiagnostics(IEnumerable <DiagnosticData> diagnostics, bool isAddSuppression, bool isSuppressionInSource, bool onlyCompilerDiagnostics)
{
foreach (var diagnostic in diagnostics)
{
var isCompilerDiagnostic = SuppressionHelpers.IsCompilerDiagnostic(diagnostic);
if (onlyCompilerDiagnostics && !isCompilerDiagnostic)
{
continue;
}
if (isAddSuppression)
{
// Compiler diagnostics can only be suppressed in source.
if (!diagnostic.IsSuppressed &&
(isSuppressionInSource || !isCompilerDiagnostic))
{
yield return(diagnostic);
}
}
else if (diagnostic.IsSuppressed)
{
yield return(diagnostic);
}
}
}
private static bool EntrySupportsSuppressionState(ITableEntryHandle entryHandle, out bool isRoslynEntry, out bool isSuppressedEntry, out bool isCompilerDiagnosticEntry, out bool isNoLocationDiagnosticEntry)
{
string filePath;
isNoLocationDiagnosticEntry = !entryHandle.TryGetValue(StandardTableColumnDefinitions.DocumentName, out filePath) ||
string.IsNullOrEmpty(filePath);
int index;
var roslynSnapshot = GetEntriesSnapshot(entryHandle, out index);
if (roslynSnapshot == null)
{
isRoslynEntry = false;
isCompilerDiagnosticEntry = false;
return(IsNonRoslynEntrySupportingSuppressionState(entryHandle, out isSuppressedEntry));
}
var diagnosticData = roslynSnapshot?.GetItem(index)?.Primary;
if (!IsEntryWithConfigurableSuppressionState(diagnosticData))
{
isRoslynEntry = false;
isSuppressedEntry = false;
isCompilerDiagnosticEntry = false;
return(false);
}
isRoslynEntry = true;
isSuppressedEntry = diagnosticData.IsSuppressed;
isCompilerDiagnosticEntry = SuppressionHelpers.IsCompilerDiagnostic(diagnosticData);
return(true);
}
/// <summary>
/// Gets <see cref="DiagnosticData"/> objects for error list entries, filtered based on the given parameters.
/// </summary>
public async Task <ImmutableArray <DiagnosticData> > GetItemsAsync(bool selectedEntriesOnly, bool isAddSuppression, bool isSuppressionInSource, bool onlyCompilerDiagnostics, CancellationToken cancellationToken)
{
var builder = ImmutableArray.CreateBuilder <DiagnosticData>();
Dictionary <string, Project> projectNameToProjectMapOpt = null;
Dictionary <Project, ImmutableDictionary <string, Document> > filePathToDocumentMapOpt = null;
var entries = selectedEntriesOnly ? _tableControl.SelectedEntries : _tableControl.Entries;
foreach (var entryHandle in entries)
{
cancellationToken.ThrowIfCancellationRequested();
DiagnosticData diagnosticData = null;
int index;
var roslynSnapshot = GetEntriesSnapshot(entryHandle, out index);
if (roslynSnapshot != null)
{
diagnosticData = roslynSnapshot.GetItem(index)?.Primary;
}
else if (!isAddSuppression)
{
// For suppression removal, we also need to handle FxCop entries.
bool isSuppressedEntry;
if (!IsNonRoslynEntrySupportingSuppressionState(entryHandle, out isSuppressedEntry) ||
!isSuppressedEntry)
{
continue;
}
string errorCode = null, category = null, message = null, filePath = null, projectName = null;
int line = -1; // FxCop only supports line, not column.
var location = Location.None;
if (entryHandle.TryGetValue(StandardTableColumnDefinitions.ErrorCode, out errorCode) && !string.IsNullOrEmpty(errorCode) &&
entryHandle.TryGetValue(StandardTableColumnDefinitions.ErrorCategory, out category) && !string.IsNullOrEmpty(category) &&
entryHandle.TryGetValue(StandardTableColumnDefinitions.Text, out message) && !string.IsNullOrEmpty(message) &&
entryHandle.TryGetValue(StandardTableColumnDefinitions.ProjectName, out projectName) && !string.IsNullOrEmpty(projectName))
{
if (projectNameToProjectMapOpt == null)
{
projectNameToProjectMapOpt = new Dictionary <string, Project>();
foreach (var p in _workspace.CurrentSolution.Projects)
{
projectNameToProjectMapOpt[p.Name] = p;
}
}
cancellationToken.ThrowIfCancellationRequested();
Project project;
if (!projectNameToProjectMapOpt.TryGetValue(projectName, out project))
{
// bail out
continue;
}
Document document = null;
var hasLocation = (entryHandle.TryGetValue(StandardTableColumnDefinitions.DocumentName, out filePath) && !string.IsNullOrEmpty(filePath)) &&
(entryHandle.TryGetValue(StandardTableColumnDefinitions.Line, out line) && line >= 0);
if (hasLocation)
{
if (string.IsNullOrEmpty(filePath) || line < 0)
{
// bail out
continue;
}
ImmutableDictionary <string, Document> filePathMap;
filePathToDocumentMapOpt = filePathToDocumentMapOpt ?? new Dictionary <Project, ImmutableDictionary <string, Document> >();
if (!filePathToDocumentMapOpt.TryGetValue(project, out filePathMap))
{
filePathMap = await GetFilePathToDocumentMapAsync(project, cancellationToken).ConfigureAwait(false);
filePathToDocumentMapOpt[project] = filePathMap;
}
if (!filePathMap.TryGetValue(filePath, out document))
{
// bail out
continue;
}
var tree = await document.GetSyntaxTreeAsync(cancellationToken).ConfigureAwait(false);
var linePosition = new LinePosition(line, 0);
var linePositionSpan = new LinePositionSpan(start: linePosition, end: linePosition);
var textSpan = (await tree.GetTextAsync(cancellationToken).ConfigureAwait(false)).Lines.GetTextSpan(linePositionSpan);
location = tree.GetLocation(textSpan);
}
Contract.ThrowIfNull(project);
Contract.ThrowIfFalse((document != null) == location.IsInSource);
// Create a diagnostic with correct values for fields we care about: id, category, message, isSuppressed, location
// and default values for the rest of the fields (not used by suppression fixer).
var diagnostic = Diagnostic.Create(
id: errorCode,
category: category,
message: message,
severity: DiagnosticSeverity.Warning,
defaultSeverity: DiagnosticSeverity.Warning,
isEnabledByDefault: true,
warningLevel: 1,
isSuppressed: isSuppressedEntry,
title: message,
location: location,
customTags: SuppressionHelpers.SynthesizedExternalSourceDiagnosticCustomTags);
diagnosticData = document != null?
DiagnosticData.Create(document, diagnostic) :
DiagnosticData.Create(project, diagnostic);
}
}
if (IsEntryWithConfigurableSuppressionState(diagnosticData))
{
var isCompilerDiagnostic = SuppressionHelpers.IsCompilerDiagnostic(diagnosticData);
if (onlyCompilerDiagnostics && !isCompilerDiagnostic)
{
continue;
}
if (isAddSuppression)
{
// Compiler diagnostics can only be suppressed in source.
if (!diagnosticData.IsSuppressed &&
(isSuppressionInSource || !isCompilerDiagnostic))
{
builder.Add(diagnosticData);
}
}
else if (diagnosticData.IsSuppressed)
{
builder.Add(diagnosticData);
}
}
}
return(builder.ToImmutable());
}