private static bool TryGetEvaluationFilter(Tracing.Logger logger, LoggingContext loggingContext, EngineContext engineContext, string filter, out EvaluationFilter evaluationFilter)
{
FilterParser parser = new FilterParser(
engineContext,
DummyPathResolver,
filter);
RootFilter rootFilter;
FilterParserError error;
if (!parser.TryParse(out rootFilter, out error))
{
logger.ErrorParsingFilter(loggingContext, filter, error.Position, error.Message, error.FormatFilterPointingToPosition(filter));
evaluationFilter = null;
return(false);
}
evaluationFilter = rootFilter.GetEvaluationFilter(engineContext.SymbolTable, engineContext.PathTable);
return(true);
}
/// <summary>
/// Builds a workspace and uses filter to find specs to evaluate.
/// </summary>
public static bool TryCollectFilesToAnalyze(
Tracing.Logger logger,
PathTable pathTable,
EnginePhases phase,
string configFile,
string filter,
out Workspace workspace,
out IReadOnlyDictionary <AbsolutePath, ISourceFile> filesToAnalyze,
out FrontEndContext context)
{
workspace = null;
filesToAnalyze = null;
var loggingContext = new LoggingContext("DScriptAnalyzer");
var fileSystem = new PassThroughFileSystem(pathTable);
var engineContext = EngineContext.CreateNew(CancellationToken.None, pathTable, fileSystem);
context = engineContext.ToFrontEndContext(loggingContext);
// Parse filter string into EvaluationFilter
var evaluationFilter = EvaluationFilter.Empty;
if (!string.IsNullOrEmpty(filter))
{
if (!TryGetEvaluationFilter(logger, loggingContext, engineContext, filter, out evaluationFilter))
{
// Error has been reported already
return(false);
}
}
var configFilePath = AbsolutePath.Create(pathTable, configFile);
// Try parsing the workspace from config and evaluation filter
if (!TryBuildWorkspace(
phase,
context,
engineContext,
configFilePath,
evaluationFilter,
progressHandler: null,
workspace: out workspace,
frontEndHostController: out _,
configuration: GetDefaultConfiguration()))
{
return(false);
}
// Find strict subset of specs in workspace that should be analyzed
var collectedFilesToAnalyze = CollectFilesToAnalyze(
workspace,
pathTable,
configFilePath,
evaluationFilter);
if (collectedFilesToAnalyze.Count == 0)
{
logger.ErrorFilterHasNoMatchingSpecs(loggingContext, filter);
return(false);
}
filesToAnalyze = collectedFilesToAnalyze;
return(true);
}
