private ValueSource <AnalyzerConfig> CreateAnalyzerConfigValueSource()
{
return(new AsyncLazy <AnalyzerConfig>(
asynchronousComputeFunction: async cancellationToken => AnalyzerConfig.Parse(await GetTextAsync(cancellationToken).ConfigureAwait(false), FilePath),
synchronousComputeFunction: cancellationToken => AnalyzerConfig.Parse(GetTextSynchronously(cancellationToken), FilePath),
cacheResult: true));
}
private AnalyzerConfigSet(ImmutableArray <AnalyzerConfig> analyzerConfigs)
{
_analyzerConfigs = analyzerConfigs;
var allMatchers = ArrayBuilder <ImmutableArray <SectionNameMatcher?> > .GetInstance(_analyzerConfigs.Length);
foreach (var config in _analyzerConfigs)
{
// Create an array of regexes with each entry corresponding to the same index
// in <see cref="EditorConfig.NamedSections"/>.
var builder = ArrayBuilder <SectionNameMatcher?> .GetInstance(config.NamedSections.Length);
foreach (var section in config.NamedSections)
{
SectionNameMatcher?matcher = AnalyzerConfig.TryCreateSectionNameMatcher(section.Name);
builder.Add(matcher);
}
Debug.Assert(builder.Count == config.NamedSections.Length);
allMatchers.Add(builder.ToImmutableAndFree());
}
Debug.Assert(allMatchers.Count == _analyzerConfigs.Length);
_analyzerMatchers = allMatchers.ToImmutableAndFree();
}
public AnalyzerConfigOptionsResult GetOptionsForSourcePath(string sourcePath)
{
if (sourcePath == null)
{
throw new ArgumentNullException(nameof(sourcePath));
}
var sectionKey = _sectionKeyPool.Allocate();
var normalizedPath = PathUtilities.NormalizeWithForwardSlash(sourcePath);
// If we have a global config, add any sections that match the full path
foreach (var section in _globalConfig.NamedSections)
{
if (normalizedPath.Equals(section.Name, Section.NameComparer))
{
sectionKey.Add(section);
}
}
int globalConfigOptionsCount = sectionKey.Count;
// The editorconfig paths are sorted from shortest to longest, so matches
// are resolved from most nested to least nested, where last setting wins
for (int analyzerConfigIndex = 0; analyzerConfigIndex < _analyzerConfigs.Length; analyzerConfigIndex++)
{
var config = _analyzerConfigs[analyzerConfigIndex];
if (normalizedPath.StartsWith(config.NormalizedDirectory, StringComparison.Ordinal))
{
// If this config is a root config, then clear earlier options since they don't apply
// to this source file.
if (config.IsRoot)
{
sectionKey.RemoveRange(globalConfigOptionsCount, sectionKey.Count - globalConfigOptionsCount);
}
int dirLength = config.NormalizedDirectory.Length;
// Leave '/' if the normalized directory ends with a '/'. This can happen if
// we're in a root directory (e.g. '/' or 'Z:/'). The section matching
// always expects that the relative path start with a '/'.
if (config.NormalizedDirectory[dirLength - 1] == '/')
{
dirLength--;
}
string relativePath = normalizedPath.Substring(dirLength);
ImmutableArray <SectionNameMatcher?> matchers = _analyzerMatchers[analyzerConfigIndex];
for (int sectionIndex = 0; sectionIndex < matchers.Length; sectionIndex++)
{
if (matchers[sectionIndex]?.IsMatch(relativePath) == true)
{
var section = config.NamedSections[sectionIndex];
sectionKey.Add(section);
}
}
}
}
// Try to avoid creating extra dictionaries if we've already seen an options result with the
// exact same options
if (!_optionsCache.TryGetValue(sectionKey, out var result))
{
var treeOptionsBuilder = _treeOptionsPool.Allocate();
var analyzerOptionsBuilder = _analyzerOptionsPool.Allocate();
var diagnosticBuilder = ArrayBuilder <Diagnostic> .GetInstance();
int sectionKeyIndex = 0;
analyzerOptionsBuilder.AddRange(GlobalConfigOptions.AnalyzerOptions);
foreach (var configSection in _globalConfig.NamedSections)
{
if (sectionKey.Count > 0 && configSection == sectionKey[sectionKeyIndex])
{
ParseSectionOptions(
sectionKey[sectionKeyIndex],
treeOptionsBuilder,
analyzerOptionsBuilder,
diagnosticBuilder,
GlobalAnalyzerConfigBuilder.GlobalConfigPath,
_diagnosticIdCache);
sectionKeyIndex++;
if (sectionKeyIndex == sectionKey.Count)
{
break;
}
}
}
for (int analyzerConfigIndex = 0;
analyzerConfigIndex < _analyzerConfigs.Length && sectionKeyIndex < sectionKey.Count;
analyzerConfigIndex++)
{
AnalyzerConfig config = _analyzerConfigs[analyzerConfigIndex];
ImmutableArray <SectionNameMatcher?> matchers = _analyzerMatchers[analyzerConfigIndex];
for (int matcherIndex = 0; matcherIndex < matchers.Length; matcherIndex++)
{
if (sectionKey[sectionKeyIndex] == config.NamedSections[matcherIndex])
{
ParseSectionOptions(
sectionKey[sectionKeyIndex],
treeOptionsBuilder,
analyzerOptionsBuilder,
diagnosticBuilder,
config.PathToFile,
_diagnosticIdCache);
sectionKeyIndex++;
if (sectionKeyIndex == sectionKey.Count)
{
// Exit the inner 'for' loop now that work is done. The outer loop is handled by a
// top-level condition.
break;
}
}
}
}
result = new AnalyzerConfigOptionsResult(
treeOptionsBuilder.Count > 0 ? treeOptionsBuilder.ToImmutable() : SyntaxTree.EmptyDiagnosticOptions,
analyzerOptionsBuilder.Count > 0 ? analyzerOptionsBuilder.ToImmutable() : AnalyzerConfigOptions.EmptyDictionary,
diagnosticBuilder.ToImmutableAndFree());
if (_optionsCache.TryAdd(sectionKey, result))
{
// Release the pooled object to be used as a key
_sectionKeyPool.ForgetTrackedObject(sectionKey);
}
else
{
freeKey(sectionKey, _sectionKeyPool);
}
treeOptionsBuilder.Clear();
analyzerOptionsBuilder.Clear();
_treeOptionsPool.Free(treeOptionsBuilder);
_analyzerOptionsPool.Free(analyzerOptionsBuilder);
}
else
{
freeKey(sectionKey, _sectionKeyPool);
}
return(result);