private DirectiveTriviaSyntax ParseElseDirective(
SyntaxToken hash,
SyntaxToken keyword,
bool isActive,
bool endIsActive
)
{
var eod = this.ParseEndOfDirective(ignoreErrors: false);
if (_context.HasPreviousIfOrElif())
{
var branchTaken = endIsActive && !_context.PreviousBranchTaken();
return(SyntaxFactory.ElseDirectiveTrivia(
hash,
keyword,
eod,
endIsActive,
branchTaken
));
}
else if (_context.HasUnfinishedRegion())
{
return(this.AddError(
SyntaxFactory.BadDirectiveTrivia(hash, keyword, eod, isActive),
ErrorCode.ERR_EndRegionDirectiveExpected
));
}
else if (_context.HasUnfinishedIf())
{
return(this.AddError(
SyntaxFactory.BadDirectiveTrivia(hash, keyword, eod, isActive),
ErrorCode.ERR_EndifDirectiveExpected
));
}
else
{
return(this.AddError(
SyntaxFactory.BadDirectiveTrivia(hash, keyword, eod, isActive),
ErrorCode.ERR_UnexpectedDirective
));
}
}