private PartialParseResultInternal HandleInsertion(Span target, char previousChar, SourceChange change)
{
// What are we inserting after?
if (previousChar == '.')
{
return(HandleInsertionAfterDot(target, change));
}
else if (ParserHelpers.IsIdentifierPart(previousChar) || previousChar == ')' || previousChar == ']')
{
return(HandleInsertionAfterIdPart(target, change));
}
else
{
return(PartialParseResultInternal.Rejected);
}
}
private PartialParseResultInternal HandleDeletion(Span target, char previousChar, SourceChange change)
{
// What's left after deleting?
if (previousChar == '.')
{
return(TryAcceptChange(target, change, PartialParseResultInternal.Accepted | PartialParseResultInternal.Provisional));
}
else if (ParserHelpers.IsIdentifierPart(previousChar))
{
return(TryAcceptChange(target, change));
}
else
{
return(PartialParseResultInternal.Rejected);
}
}
private PartialParseResultInternal HandleDeletion(Span target, char previousChar, SourceChange change)
{
// What's left after deleting?
if (previousChar == '.')
{
return(TryAcceptChange(target, change, PartialParseResultInternal.Accepted | PartialParseResultInternal.Provisional));
}
else if (ParserHelpers.IsIdentifierPart(previousChar))
{
return(TryAcceptChange(target, change));
}
else if (previousChar == '(')
{
var changeRelativePosition = change.Span.AbsoluteIndex - target.Start.AbsoluteIndex;
if (target.Content[changeRelativePosition] == ')')
{
return(PartialParseResultInternal.Accepted | PartialParseResultInternal.Provisional);
}
}
return(PartialParseResultInternal.Rejected);
}