protected override void ReParseImpl()
{
var outputWindow = OutputWindowService.TryGetPane(PredefinedOutputWindowPanes.TvlIntellisense);
try
{
Stopwatch stopwatch = Stopwatch.StartNew();
var snapshot = TextBuffer.CurrentSnapshot;
SnapshotCharStream input = new SnapshotCharStream(snapshot, new Span(0, snapshot.Length));
GoLexer lexer = new GoLexer(input);
GoSemicolonInsertionTokenSource tokenSource = new GoSemicolonInsertionTokenSource(lexer);
CommonTokenStream tokens = new CommonTokenStream(tokenSource);
GoParser parser = new GoParser(tokens);
List<ParseErrorEventArgs> errors = new List<ParseErrorEventArgs>();
parser.ParseError += (sender, e) =>
{
errors.Add(e);
string message = e.Message;
ITextDocument document;
if (TextBuffer.Properties.TryGetProperty(typeof(ITextDocument), out document) && document != null)
{
string fileName = document.FilePath;
var line = snapshot.GetLineFromPosition(e.Span.Start);
message = string.Format("{0}({1},{2}): {3}", fileName, line.LineNumber + 1, e.Span.Start - line.Start.Position + 1, message);
}
if (message.Length > 100)
message = message.Substring(0, 100) + " ...";
if (outputWindow != null)
outputWindow.WriteLine(message);
if (errors.Count > 100)
throw new OperationCanceledException();
};
var result = parser.compilationUnit();
OnParseComplete(new AntlrParseResultEventArgs(snapshot, errors, stopwatch.Elapsed, tokens.GetTokens(), result));
}
catch (Exception e)
{
if (ErrorHandler.IsCriticalException(e))
throw;
try
{
if (outputWindow != null)
outputWindow.WriteLine(e.Message);
}
catch (Exception ex2)
{
if (ErrorHandler.IsCriticalException(ex2))
throw;
}
}
}
protected override void ReParseImpl()
{
var outputWindow = OutputWindowService.TryGetPane(PredefinedOutputWindowPanes.TvlIntellisense);
try
{
Stopwatch stopwatch = Stopwatch.StartNew();
var snapshot = TextBuffer.CurrentSnapshot;
SnapshotCharStream input = new SnapshotCharStream(snapshot, new Span(0, snapshot.Length));
GoLexer lexer = new GoLexer(input);
GoSemicolonInsertionTokenSource tokenSource = new GoSemicolonInsertionTokenSource(lexer);
CommonTokenStream tokens = new CommonTokenStream(tokenSource);
GoParser parser = new GoParser(tokens);
List <ParseErrorEventArgs> errors = new List <ParseErrorEventArgs>();
parser.ParseError += (sender, e) =>
{
errors.Add(e);
string message = e.Message;
ITextDocument document;
if (TextBuffer.Properties.TryGetProperty(typeof(ITextDocument), out document) && document != null)
{
string fileName = document.FilePath;
var line = snapshot.GetLineFromPosition(e.Span.Start);
message = string.Format("{0}({1},{2}): {3}", fileName, line.LineNumber + 1, e.Span.Start - line.Start.Position + 1, message);
}
if (message.Length > 100)
{
message = message.Substring(0, 100) + " ...";
}
if (outputWindow != null)
{
outputWindow.WriteLine(message);
}
if (errors.Count > 100)
{
throw new OperationCanceledException();
}
};
var result = parser.compilationUnit();
OnParseComplete(new AntlrParseResultEventArgs(snapshot, errors, stopwatch.Elapsed, tokens.GetTokens(), result));
}
catch (Exception e)
{
if (ErrorHandler.IsCriticalException(e))
{
throw;
}
try
{
if (outputWindow != null)
{
outputWindow.WriteLine(e.Message);
}
}
catch (Exception ex2)
{
if (ErrorHandler.IsCriticalException(ex2))
{
throw;
}
}
}
}
public void AugmentQuickInfoSession(IQuickInfoSession session, IList<object> quickInfoContent, out ITrackingSpan applicableToSpan)
{
applicableToSpan = null;
if (session == null || quickInfoContent == null)
return;
if (session.TextView.TextBuffer == this.TextBuffer)
{
ITextSnapshot currentSnapshot = this.TextBuffer.CurrentSnapshot;
SnapshotPoint? triggerPoint = session.GetTriggerPoint(currentSnapshot);
if (!triggerPoint.HasValue)
return;
#region experimental
/* use the experimental model to locate and process the expression */
Stopwatch stopwatch = Stopwatch.StartNew();
// lex the entire document
var input = new SnapshotCharStream(currentSnapshot, new Span(0, currentSnapshot.Length));
var lexer = new GoLexer(input);
var tokenSource = new GoSemicolonInsertionTokenSource(lexer);
var tokens = new CommonTokenStream(tokenSource);
tokens.Fill();
// locate the last token before the trigger point
while (true)
{
IToken nextToken = tokens.LT(1);
if (nextToken.Type == CharStreamConstants.EndOfFile)
break;
if (nextToken.StartIndex > triggerPoint.Value.Position)
break;
tokens.Consume();
}
switch (tokens.LA(-1))
{
case GoLexer.IDENTIFIER:
//case GoLexer.KW_THIS:
//case GoLexer.KW_UNIV:
//case GoLexer.KW_IDEN:
//case GoLexer.KW_INT2:
//case GoLexer.KW_SEQINT:
break;
default:
return;
}
Network network = NetworkBuilder<GoSimplifiedAtnBuilder>.GetOrBuildNetwork();
RuleBinding memberSelectRule = network.GetRule(GoSimplifiedAtnBuilder.RuleNames.PrimaryExpr);
#if false
HashSet<Transition> memberSelectTransitions = new HashSet<Transition>();
GetReachableTransitions(memberSelectRule, memberSelectTransitions);
#endif
NetworkInterpreter interpreter = new NetworkInterpreter(network, tokens);
interpreter.BoundaryRules.Add(memberSelectRule);
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.Label));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.TypeSwitchGuard));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.FieldName));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.Receiver));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.FunctionDecl));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.BaseTypeName));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.TypeSpec));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.IdentifierList));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.MethodName));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.ParameterDecl));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.FieldIdentifierList));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.PackageName));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.TypeName));
interpreter.ExcludedStartRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.Block));
while (interpreter.TryStepBackward())
{
if (interpreter.Contexts.Count == 0)
break;
/* we want all traces to start outside the binOpExpr18 rule, which means all
* traces with a transition reachable from binOpExpr18 should contain a push
* transition with binOpExpr18's start state as its target.
*/
if (interpreter.Contexts.All(context => context.BoundedStart))
{
break;
}
}
interpreter.CombineBoundedStartContexts();
IOutputWindowPane pane = Provider.OutputWindowService.TryGetPane(PredefinedOutputWindowPanes.TvlIntellisense);
if (pane != null)
{
pane.WriteLine(string.Format("Located {0} QuickInfo expression(s) in {1}ms.", interpreter.Contexts.Count, stopwatch.ElapsedMilliseconds));
}
HashSet<string> finalResult = new HashSet<string>();
SnapshotSpan? contextSpan = null;
foreach (var context in interpreter.Contexts)
{
Span? span = null;
//List<string> results = AnalyzeInterpreterTrace(context, memberSelectRule, out span);
foreach (var transition in context.Transitions)
{
if (!transition.Transition.IsMatch)
continue;
IToken token = transition.Token;
Span tokenSpan = new Span(token.StartIndex, token.StopIndex - token.StartIndex + 1);
if (span == null)
span = tokenSpan;
else
span = Span.FromBounds(Math.Min(span.Value.Start, tokenSpan.Start), Math.Max(span.Value.End, tokenSpan.End));
}
if (span.HasValue && !span.Value.IsEmpty)
contextSpan = new SnapshotSpan(currentSnapshot, span.Value);
//if (results.Count > 0)
//{
// finalResult.UnionWith(results);
// applicableToSpan = currentSnapshot.CreateTrackingSpan(span, SpanTrackingMode.EdgeExclusive);
//}
}
foreach (var result in finalResult)
{
quickInfoContent.Add(result);
}
#endregion
#if false
var selection = session.TextView.Selection.StreamSelectionSpan;
if (selection.IsEmpty || !selection.Contains(new VirtualSnapshotPoint(triggerPoint.Value)))
{
SnapshotSpan? expressionSpan = Provider.IntellisenseCache.GetExpressionSpan(triggerPoint.Value);
if (expressionSpan.HasValue)
selection = new VirtualSnapshotSpan(expressionSpan.Value);
}
#endif
VirtualSnapshotSpan selection = new VirtualSnapshotSpan();
if (contextSpan.HasValue)
selection = new VirtualSnapshotSpan(contextSpan.Value);
if (!selection.IsEmpty && selection.Contains(new VirtualSnapshotPoint(triggerPoint.Value)))
{
applicableToSpan = selection.Snapshot.CreateTrackingSpan(selection.SnapshotSpan, SpanTrackingMode.EdgeExclusive);
quickInfoContent.Add(selection.GetText());
//try
//{
// Expression currentExpression = Provider.IntellisenseCache.ParseExpression(selection);
// if (currentExpression != null)
// {
// SnapshotSpan? span = currentExpression.Span;
// if (span.HasValue)
// applicableToSpan = span.Value.Snapshot.CreateTrackingSpan(span.Value, SpanTrackingMode.EdgeExclusive);
// quickInfoContent.Add(currentExpression.ToString());
// }
// else
// {
// quickInfoContent.Add("Could not parse expression.");
// }
//}
//catch (Exception ex)
//{
// if (ErrorHandler.IsCriticalException(ex))
// throw;
// quickInfoContent.Add(ex.Message);
//}
}
}
}
public void AugmentQuickInfoSession(IQuickInfoSession session, IList <object> quickInfoContent, out ITrackingSpan applicableToSpan)
{
applicableToSpan = null;
if (session == null || quickInfoContent == null)
{
return;
}
if (session.TextView.TextBuffer == this.TextBuffer)
{
ITextSnapshot currentSnapshot = this.TextBuffer.CurrentSnapshot;
SnapshotPoint?triggerPoint = session.GetTriggerPoint(currentSnapshot);
if (!triggerPoint.HasValue)
{
return;
}
#region experimental
/* use the experimental model to locate and process the expression */
Stopwatch stopwatch = Stopwatch.StartNew();
// lex the entire document
var input = new SnapshotCharStream(currentSnapshot, new Span(0, currentSnapshot.Length));
var lexer = new GoLexer(input);
var tokenSource = new GoSemicolonInsertionTokenSource(lexer);
var tokens = new CommonTokenStream(tokenSource);
tokens.Fill();
// locate the last token before the trigger point
while (true)
{
IToken nextToken = tokens.LT(1);
if (nextToken.Type == CharStreamConstants.EndOfFile)
{
break;
}
if (nextToken.StartIndex > triggerPoint.Value.Position)
{
break;
}
tokens.Consume();
}
switch (tokens.LA(-1))
{
case GoLexer.IDENTIFIER:
//case GoLexer.KW_THIS:
//case GoLexer.KW_UNIV:
//case GoLexer.KW_IDEN:
//case GoLexer.KW_INT2:
//case GoLexer.KW_SEQINT:
break;
default:
return;
}
Network network = NetworkBuilder <GoSimplifiedAtnBuilder> .GetOrBuildNetwork();
RuleBinding memberSelectRule = network.GetRule(GoSimplifiedAtnBuilder.RuleNames.PrimaryExpr);
#if false
HashSet <Transition> memberSelectTransitions = new HashSet <Transition>();
GetReachableTransitions(memberSelectRule, memberSelectTransitions);
#endif
NetworkInterpreter interpreter = new NetworkInterpreter(network, tokens);
interpreter.BoundaryRules.Add(memberSelectRule);
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.Label));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.TypeSwitchGuard));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.FieldName));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.Receiver));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.FunctionDecl));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.BaseTypeName));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.TypeSpec));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.IdentifierList));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.MethodName));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.ParameterDecl));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.FieldIdentifierList));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.PackageName));
interpreter.BoundaryRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.TypeName));
interpreter.ExcludedStartRules.Add(network.GetRule(GoSimplifiedAtnBuilder.RuleNames.Block));
while (interpreter.TryStepBackward())
{
if (interpreter.Contexts.Count == 0)
{
break;
}
/* we want all traces to start outside the binOpExpr18 rule, which means all
* traces with a transition reachable from binOpExpr18 should contain a push
* transition with binOpExpr18's start state as its target.
*/
if (interpreter.Contexts.All(context => context.BoundedStart))
{
break;
}
}
interpreter.CombineBoundedStartContexts();
IOutputWindowPane pane = Provider.OutputWindowService.TryGetPane(PredefinedOutputWindowPanes.TvlIntellisense);
if (pane != null)
{
pane.WriteLine(string.Format("Located {0} QuickInfo expression(s) in {1}ms.", interpreter.Contexts.Count, stopwatch.ElapsedMilliseconds));
}
HashSet <string> finalResult = new HashSet <string>();
SnapshotSpan? contextSpan = null;
foreach (var context in interpreter.Contexts)
{
Span?span = null;
//List<string> results = AnalyzeInterpreterTrace(context, memberSelectRule, out span);
foreach (var transition in context.Transitions)
{
if (!transition.Transition.IsMatch)
{
continue;
}
IToken token = transition.Token;
Span tokenSpan = new Span(token.StartIndex, token.StopIndex - token.StartIndex + 1);
if (span == null)
{
span = tokenSpan;
}
else
{
span = Span.FromBounds(Math.Min(span.Value.Start, tokenSpan.Start), Math.Max(span.Value.End, tokenSpan.End));
}
}
if (span.HasValue && !span.Value.IsEmpty)
{
contextSpan = new SnapshotSpan(currentSnapshot, span.Value);
}
//if (results.Count > 0)
//{
// finalResult.UnionWith(results);
// applicableToSpan = currentSnapshot.CreateTrackingSpan(span, SpanTrackingMode.EdgeExclusive);
//}
}
foreach (var result in finalResult)
{
quickInfoContent.Add(result);
}
#endregion
#if false
var selection = session.TextView.Selection.StreamSelectionSpan;
if (selection.IsEmpty || !selection.Contains(new VirtualSnapshotPoint(triggerPoint.Value)))
{
SnapshotSpan?expressionSpan = Provider.IntellisenseCache.GetExpressionSpan(triggerPoint.Value);
if (expressionSpan.HasValue)
{
selection = new VirtualSnapshotSpan(expressionSpan.Value);
}
}
#endif
VirtualSnapshotSpan selection = new VirtualSnapshotSpan();
if (contextSpan.HasValue)
{
selection = new VirtualSnapshotSpan(contextSpan.Value);
}
if (!selection.IsEmpty && selection.Contains(new VirtualSnapshotPoint(triggerPoint.Value)))
{
applicableToSpan = selection.Snapshot.CreateTrackingSpan(selection.SnapshotSpan, SpanTrackingMode.EdgeExclusive);
quickInfoContent.Add(selection.GetText());
//try
//{
// Expression currentExpression = Provider.IntellisenseCache.ParseExpression(selection);
// if (currentExpression != null)
// {
// SnapshotSpan? span = currentExpression.Span;
// if (span.HasValue)
// applicableToSpan = span.Value.Snapshot.CreateTrackingSpan(span.Value, SpanTrackingMode.EdgeExclusive);
// quickInfoContent.Add(currentExpression.ToString());
// }
// else
// {
// quickInfoContent.Add("Could not parse expression.");
// }
//}
//catch (Exception ex) when (!ErrorHandler.IsCriticalException(ex))
//{
// quickInfoContent.Add(ex.Message);
//}
}
}
}
