public async Task <Reference[]> FindAllReferencesAsync(Uri uri, SourceLocation location, ReferenceSearchOptions options, CancellationToken cancellationToken = default)
{
if (uri != null)
{
var analysis = await Document.GetAnalysisAsync(uri, _services, FindReferencesAnalysisTimeout, cancellationToken);
var definitionSource = new DefinitionSource(_services);
var definition = definitionSource.FindDefinition(analysis, location, out var definingMember);
if (definition == null)
{
return(Array.Empty <Reference>());
}
var rootDefinition = definingMember.GetRootDefinition();
var name = definingMember.GetName();
// If it is an implicitly declared variable, such as function or a class
// then the location is invalid and the module is null. Use current module.
var declaringModule = rootDefinition.DeclaringModule ?? analysis.Document;
if (!string.IsNullOrEmpty(name) && (declaringModule.ModuleType == ModuleType.User || options == ReferenceSearchOptions.All))
{
return(await FindAllReferencesAsync(name, declaringModule, rootDefinition, location, definitionSource, cancellationToken));
}
}
return(Array.Empty <Reference>());
}
public async Task <DocumentHighlight[]> DocumentHighlightAsync(Uri uri, SourceLocation location, CancellationToken cancellationToken = default)
{
if (uri == null)
{
return(Array.Empty <DocumentHighlight>());
}
var analysis = await Document.GetAnalysisAsync(uri, _services, DocumentHighlightAnalysisTimeout, cancellationToken);
var definitionSource = new DefinitionSource(_services);
var definition = definitionSource.FindDefinition(analysis, location, out var definingMember);
if (definition == null || definingMember == null)
{
return(Array.Empty <DocumentHighlight>());
}
var rootDefinition = definingMember.GetRootDefinition();
var result = rootDefinition.References
.Where(r => r.DocumentUri.Equals(uri))
.Select((r, i) => new DocumentHighlight {
kind = (i == 0) ? DocumentHighlightKind.Write : DocumentHighlightKind.Read, range = r.Span
})
.ToArray();
return(result);
}
private async Task <Reference[]> FindAllReferencesAsync(string name, IPythonModule declaringModule, ILocatedMember rootDefinition, SourceLocation location, DefinitionSource definitionSource,
CancellationToken cancellationToken)
{
var candidateFiles = ScanClosedFiles(name, cancellationToken);
var reloadRootDefinition = false;
if (candidateFiles.Count > 0)
{
reloadRootDefinition = await AnalyzeFiles(declaringModule.Interpreter.ModuleResolution, candidateFiles, cancellationToken);
}
if (reloadRootDefinition)
{
var analysis = await Document.GetAnalysisAsync(declaringModule.Uri, _services, FindReferencesAnalysisTimeout, cancellationToken);
var definition = definitionSource.FindDefinition(analysis, location, out var definingMember);
if (definition == null)
{
return(Array.Empty <Reference>());
}
rootDefinition = definingMember.GetRootDefinition();
}
return(rootDefinition.References
.Select(r => new Reference {
uri = r.DocumentUri, range = r.Span
})
.ToArray());
}
