private PartialParseResultInternal HandleInsertionAfterIdPart(SyntaxNode target, SourceChange change)
{
// If the insertion is a full identifier part, accept it
if (ParserHelpers.IsIdentifier(change.NewText, requireIdentifierStart: false))
{
return(TryAcceptChange(target, change));
}
else if (IsDoubleParenthesisInsertion(change) || IsOpenParenthesisInsertion(change))
{
// Allow inserting parens after an identifier - this is needed to support signature
// help intellisense in VS.
return(TryAcceptChange(target, change));
}
else if (EndsWithDot(change.NewText))
{
// Accept it, possibly provisionally
var result = PartialParseResultInternal.Accepted;
if (!AcceptTrailingDot)
{
result |= PartialParseResultInternal.Provisional;
}
return(TryAcceptChange(target, change, result));
}
else
{
return(PartialParseResultInternal.Rejected);
}
}
private PartialParseResult HandleInsertionAfterDot(Span target, TextChange change)
{
// If the insertion is a full identifier or another dot, accept it
if (ParserHelpers.IsIdentifier(change.NewText) || change.NewText == ".")
{
return(TryAcceptChange(target, change));
}
return(PartialParseResult.Rejected);
}
// Completing 'DateTime' in intellisense with a '.' could result in: '@DateT' -> '@DateT.' -> '@DateTime.' which is accepted.
private static bool IsNewDotlessCommitInsertion(Span target, TextChange change)
{
return(!IsAtEndOfSpan(target, change) &&
change.NewPosition > 0 &&
change.NewLength > 0 &&
target.Content.Last() == '.' &&
ParserHelpers.IsIdentifier(change.NewText, requireIdentifierStart: false) &&
(change.OldLength == 0 || ParserHelpers.IsIdentifier(change.OldText, requireIdentifierStart: false)));
}
// Completing 'DateTime' in intellisense with a '.' could result in: '@DateT' -> '@DateT.' -> '@DateTime.' which is accepted.
private static bool IsNewDotlessCommitInsertion(SyntaxNode target, SourceChange change)
{
return(!IsAtEndOfSpan(target, change) &&
change.Span.AbsoluteIndex > 0 &&
change.NewText.Length > 0 &&
target.GetContent().Last() == '.' &&
ParserHelpers.IsIdentifier(change.NewText, requireIdentifierStart: false) &&
(change.Span.Length == 0 || ParserHelpers.IsIdentifier(change.GetOriginalText(target), requireIdentifierStart: false)));
}
private PartialParseResult HandleInsertionAfterDot(TextChange change)
{
// If the insertion is a full identifier, accept it
if (ParserHelpers.IsIdentifier(change.NewText))
{
return(TryAcceptChange(change));
}
return(PartialParseResult.Rejected);
}
private PartialParseResult HandleInsertionAfterIdPart(Span target, TextChange change)
{
// If the insertion is a full identifier part, accept it
if (ParserHelpers.IsIdentifier(change.NewText, requireIdentifierStart: false))
{
return(TryAcceptChange(target, change));
}
else if (EndsWithDot(change.NewText))
{
// Accept it, possibly provisionally
PartialParseResult result = PartialParseResult.Accepted;
if (!AcceptTrailingDot)
{
result |= PartialParseResult.Provisional;
}
return(TryAcceptChange(target, change, result));
}
else
{
return(PartialParseResult.Rejected);
}
}