private bool ShouldTriggerIdentifierCompletionSession(out bool commitByDefault)
{
commitByDefault = true;
if (_bufferParser == null ||
!_provider.PythonService.AdvancedOptions.AutoListIdentifiers ||
!_provider.PythonService.AdvancedOptions.AutoListMembers)
{
return(false);
}
SnapshotPoint?caretPoint = _textView.BufferGraph.MapDownToFirstMatch(
_textView.Caret.Position.BufferPosition,
PointTrackingMode.Positive,
EditorExtensions.IsPythonContent,
PositionAffinity.Predecessor
);
if (!caretPoint.HasValue)
{
return(false);
}
var snapshot = caretPoint.Value.Snapshot;
var statement = new ReverseExpressionParser(
snapshot,
snapshot.TextBuffer,
snapshot.CreateTrackingSpan(caretPoint.Value.Position, 0, SpanTrackingMode.EdgeNegative)
).GetStatementRange();
if (!statement.HasValue || caretPoint.Value <= statement.Value.Start)
{
return(false);
}
var text = new SnapshotSpan(statement.Value.Start, caretPoint.Value).GetText();
if (string.IsNullOrEmpty(text))
{
return(false);
}
var languageVersion = _bufferParser._parser.InterpreterFactory.Configuration.Version.ToLanguageVersion();
PythonAst ast;
using (var parser = Parser.CreateParser(new StringReader(text), languageVersion, new ParserOptions())) {
ast = parser.ParseSingleStatement();
}
var walker = new ExpressionCompletionWalker(caretPoint.Value.Position - statement.Value.Start.Position);
ast.Walk(walker);
commitByDefault = walker.CommitByDefault;
return(walker.CanComplete);
}
private bool ShouldTriggerIdentifierCompletionSession(out bool commitByDefault) {
commitByDefault = true;
if (_bufferParser == null ||
!_provider.PythonService.AdvancedOptions.AutoListIdentifiers ||
!_provider.PythonService.AdvancedOptions.AutoListMembers) {
return false;
}
SnapshotPoint? caretPoint = _textView.BufferGraph.MapDownToFirstMatch(
_textView.Caret.Position.BufferPosition,
PointTrackingMode.Positive,
EditorExtensions.IsPythonContent,
PositionAffinity.Predecessor
);
if (!caretPoint.HasValue) {
return false;
}
var snapshot = caretPoint.Value.Snapshot;
var statement = new ReverseExpressionParser(
snapshot,
snapshot.TextBuffer,
snapshot.CreateTrackingSpan(caretPoint.Value.Position, 0, SpanTrackingMode.EdgeNegative)
).GetStatementRange();
if (!statement.HasValue || caretPoint.Value <= statement.Value.Start) {
return false;
}
var text = new SnapshotSpan(statement.Value.Start, caretPoint.Value).GetText();
if (string.IsNullOrEmpty(text)) {
return false;
}
var languageVersion = _bufferParser._parser.InterpreterFactory.Configuration.Version.ToLanguageVersion();
PythonAst ast;
using (var parser = Parser.CreateParser(new StringReader(text), languageVersion, new ParserOptions())) {
ast = parser.ParseSingleStatement();
}
var walker = new ExpressionCompletionWalker(caretPoint.Value.Position - statement.Value.Start.Position);
ast.Walk(walker);
commitByDefault = walker.CommitByDefault;
return walker.CanComplete;
}
private bool ShouldTriggerIdentifierCompletionSession(out bool commitByDefault) {
commitByDefault = true;
if (!_provider.PythonService.AdvancedOptions.AutoListIdentifiers ||
!_provider.PythonService.AdvancedOptions.AutoListMembers) {
return false;
}
var caretPoint = _textView.GetPythonCaret();
if (!caretPoint.HasValue) {
return false;
}
var snapshot = caretPoint.Value.Snapshot;
var statement = new ReverseExpressionParser(
snapshot,
snapshot.TextBuffer,
snapshot.CreateTrackingSpan(caretPoint.Value.Position, 0, SpanTrackingMode.EdgeNegative)
).GetStatementRange();
if (!statement.HasValue || caretPoint.Value <= statement.Value.Start) {
return false;
}
var text = new SnapshotSpan(statement.Value.Start, caretPoint.Value).GetText();
if (string.IsNullOrEmpty(text)) {
return false;
}
var analysis = _textView.GetAnalysisEntry(snapshot.TextBuffer, _serviceProvider);
if (analysis == null) {
return false;
}
var languageVersion = analysis.Analyzer.InterpreterFactory.Configuration.Version.ToLanguageVersion();
PythonAst ast;
using (var parser = Parser.CreateParser(new StringReader(text), languageVersion, new ParserOptions { Verbatim = true })) {
ast = parser.ParseSingleStatement();
}
var walker = new ExpressionCompletionWalker(caretPoint.Value.Position - statement.Value.Start.Position);
ast.Walk(walker);
commitByDefault = walker.CommitByDefault;
return walker.CanComplete;
}