Bug 10923 - LocalResolveResult.Variable.Region is wrong
Summary: LocalResolveResult.Variable.Region is wrong
Alias: None
Product: Xamarin Studio
Classification: Desktop
Component: Text Editor ()
Version: 4.0
Hardware: PC Mac OS
: Low normal
Target Milestone: ---
Assignee: Mike Krüger
Depends on:
Reported: 2013-03-05 16:38 UTC by Jeffrey Stedfast
Modified: 2013-03-06 01:09 UTC (History)
1 user (show)

Is this bug a regression?: ---
Last known good build:

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Description Jeffrey Stedfast 2013-03-05 16:38:32 UTC
In DebugValueTooltipProvider.cs, the logic to get the variable name is off by 1 character because the result.Variable.Region is wrong.

you can see the hack I have in the code:

expression = ed.GetTextBetween (startOffset, endOffset);
if (char.IsWhiteSpace (expression[0])) {
	// FIXME: Mike: if I have "var @class = ...", why does GetTextBetween() return " @clas" ???
	expression = ed.GetTextBetween (startOffset + 1, endOffset + 1);

If you have some code like:

var @class = new object ();

and then you hover over the @class variable, the Variable.Region seems to be the region for " @clas" instead of "@class"

While on the topic, should LocalResolveResult.Variable.Name == "@class"? Currently, it's just "class" but it would be helpful if it included the @ (not sure if that would break anything or not, though, so it's fine if I have to resort to the GetTextBetween() way of getting the full variable name).
Comment 1 Mike Krüger 2013-03-06 00:48:55 UTC
it's atm one of the unresolved issues we've in the parser - so long don't use '@' ...

I still wait for a good solution to the identifier problem - we've fixed it for strings - but not for identifiers.

btw. It's not only the @ - you can write @cl\u0061ss it's the same identifier - don't use that and never try to rename it.
Comment 2 Mike Krüger 2013-03-06 01:09:30 UTC
I already have a hack for verbatim identifiers - wasn't just working correctly.

At least this part is fixed - and more common than escape sequences. Escape sequences however are another story ... they're even valid in keywords :/