I've written a basic LanguageService extension for Visual Studio 2008 for my studio's proprietary scripting language. It works perfectly fine, and I've implemented a basic symbol table to keep track of script definitions and calls allowing for goto definition functionality.
The problem I've run into is that I only know how to parse the current active view, and I'd like to scan the entire solution's contents so that the user can goto the definition of a script defined in a file they have yet to open and have parsed. I've figured out how to generate a list of all files in the solution, but now I need to create a new Microsoft.VisualStudio.Package.Source which requires a Microsoft.VisualStudio.TextManager.Interop.IVsTextLines and I have no idea how to create a new one based off of the file I have.
Maybe I'm going about the problem the wrong way and someone can point me towards a better way to cause a file to be parsed by the LanguageService.
Regards,
Colin
Poking around I found that the reason Visual Studio needs a new Source is that it's keeping an internal list of them, and they're like the view into the text file held by the editor.
I came to the conclusion that files that are closed do not need IVsTextLines or to be entered into the VS internal list of Source files because I'm not doing any operations directly on them, all I care about in this case is to build a table of symbols and their corresponding TextSpan. So instead I created a new API for my parser that just took in a string and built my AST instead of grabbing the text from a ParseRequest, and only worried about specific types of symbols I needed to record. I then pushed this into a BackgroundWorker.
So I guess I was going about the problem in the wrong way. Although it does seem weird I can't just trigger a file to be opened into the Source list.
Interestingly I asked this question to Microsoft on their support forums and they advised me I had to purchase some service and support plan for them to answer my question.
Related
We recently switched to team foundation server 2010 for our source code management, everything works just fine, except for some legacy code written in FoxPRO 7 and 9, source code files are some sort of tables. For Forms, there are two kind of files, one ending in .scx and another in .sct, both can be explored using the fox studio but there is no way to open them in a text editor.
does anyone have any experience getting the fox code to work/merge... on TFS ?
I'm not aware of all of the ins and outs for source control and FoxPro, but if some of the source is binary, you can configure file extensions to disallow merges.
Right-click on the collection (root node) in the TeamExplorer window. Go to Team Project Collection Settings | File Types.
You should be able to add the extensions (like .sct), and specify that merging and multiple checkout is not allowed for those files.
The downside will be that only 1 person at a time can check those files out, but since the forms are FoxPro tables, I would imagine that's the same problem that you would have with any source control tool.
For merging you can set up a merge tool that is capable of merging those files. This must be done on every developer station (Tools->Source Control->VS Team Foundation Server->Configure User Tools).
It may be that VS uses a server-side merge tool to do auto-merges, I don't know if or where you can change that.
I've worked with VFP since it was FoxBase back in late 80's. Visual Foxpro used .dbf files (renamed extensions) for purposes of building forms (.scx/.sct) and visual class libraries (.vcx/.vct) and reports (.frx/.frt).
I've written some code to run through a given project and dump out a text version of all the code as if it was all text-based. All the controls are dumped in alpha order, embedded procedures, etc too. List all property settings in same place too.
Its not PERFECT, but I've used over the years in comparing source code versions when dealing with other developers who liked to change things and not notify me (or others) of such changes and finding later by other horrendous means.
If this is something you might be interested in, I can strip-down the code (some) and send it to you via an email, but would need an email address. The code is written in VFP as a .prg file, so nothing compiled that you would need to worry about any viruses or anything.
At least this way, you COULD get a text version associated with the binary pair's of files used within VFP.
Case: One source file has a comment in it that is directly linked to a comment in another source file (it says see line 315 in xxx.cs for more information). The problem with this approach is that the comment on line 315 may not be at that line number in the future. Is there a way to link comments together in an IDE? (currently using Visual Studio 2010, but use other IDEs from time to time)
You can try this addin (I haven't used this):
http://hyperaddin.codeplex.com/
Besides this addin, the only thing I can think of is using a file link to directly go to the linked file; something like:
// ...
// See file://path_to_file
//...
The link will be converted to an actual link that you can click using Ctrl+Left Click but it won't take you to a given line number - it just opens the file.
The path can be a relative file path or a full file path - full paths work best if all team members use the same folder structure in the project. For example:
// file://w:/projects/GUI/frmMain.cs
Referring to a particular source file and line number is never a good idea, because someone might move things around in the other file without being aware that something is pointing at it. It's better to point at the particular type/method, for example See DoThings() in the MyThing class..
In Java, using Javadoc, you can use #link to do this, for instance See {#link MyThing#doThings()}. Eclipse will automatically update these when using its refactoring tools (e.g. renaming the class or the method). If the change is done manually, Eclipse will still warn that the target of the #link is invalid. (There is also #see which is more appropriate in some situations.)
I'm not sure about C# and Visual Studio, but it's likely that its XML-based doc format offers similar functionality.
The only way to handle this is to put the comment in the same file. Duplicating a comment is not the same as duplicating code, although ideally the code wouldn't need too much explanation in comments.
There are many, many reasons why the comment being in another file will cause pain. As you have stated, the line number may change but also it could be deleted (as they won't know another comment references it), updated in a way that changes its meaning and it is annoying to have to open another file in any case.
Does it use modification timestamp or/and does it check whether the actual content has changed (e.g. by comparing the checksum)?
Edit: I need to know this since I use Git for source control and often change branches. It appears that sometimes even if I change the branch back and force (e.g. from develop to master and then back to develop), the VS rebuilds half of the sources files. I wonder why this happens and why does it happen sometimes and does not happen the other times.
Since Visual Studio is a closed-source project, I bet only developers would be able to give a definite answer on how exactly does it work. However, for my purposes it is enough to test some scenarios.
I have tested it with a small solution and a couple of files in it (one header and two source files). Test results bring to the following conclusion. Visual Studio looks for modification date and time. Even if the file content is the same - it compiles this file and also any other files that include it. If the modification date and time are the same - it won't recompile it even if the content is different. Visual Studio ignores creation and access dates and times.
I'm guessing it uses FileSystemWatcher on the project directories and linked files (if any), just because it's the right way to do this kind of thing.
Some googling finds for more about this class (or just look it up yourself):
http://www.techrepublic.com/article/use-the-net-filesystemwatcher-object-to-monitor-directory-changes-in-c/6165137
http://www.dotnetperls.com/filesystemwatcher
Of course when the source file is open, it's content by the time of editing, as wel as any user changes (even not saved) are loaded in the RAM, but it doesn't compare it to disk content (that'd be too slow), it listens to a system event when the system tells it the file changed.
Update:
Probably not that class itslf, but the Win32 version of it, you know most of the system related .NET functionality classes are just Win32 wrappers.
From this StackOverflow answer: How does FileSystemWatcher work on another computers directory?
I think it wraps this API (not sure): http://msdn.microsoft.com/en-us/library/aa365465.aspx
Update 2:
This is Microsoft's approach to monitor file changes:
http://msdn.microsoft.com/en-us/library/chzww271(v=vs.80).aspx
Update 3
This is an old answer, and it was mentioned above that it was a guess, as Visual Studio is closed source as mentioned in other answers. It's worth mentioning that the accepted answer suggests Visual Studio looks for file modification dates instead, which suggests it doesn't use the approach guessed in this very answer, and that it was wrong.
I hope the reader didn't mind the effort given to rationalize possibilities in this answer (causing reader discomfort or down votes). Keeping it for archival reason only.
Something strange happens to me today.
I’m working on a Multilanguage application using global resources.
I have several files, one for each language. i.e. companies.es.resx, companies.en.resx, etc.
Nothing special or different from any other ordinary Multilanguage app.
Today, the app fail and I traced the problem to be that HttpContext.GetGlobalResourceObject didn’t find the resource file.
After scratching my head for a while, I remember that yesterday, before I closed my Visual Studio, I delete a resource file that was garbage. This file was unused and in fact it was empty.
Just for “You never know” I create a new empty resource file, and Walla!!! Everything begins to work perfect again.
The ONLY difference with this file, is that is named without the language like test.resx.
I don’t get it, It is so weird.
Another funny thing is that when I try to access the resources with “Resources.” Test is the only resource I get.
Any Idea what is happening?
I’m using visual studio 2010 with MVC 3.
Thanks!
Edgar
Default resource file (without any language extension like companies.resx) is required with other language based files (like companies.es.resx or companies.fr.resx) when working with resources files for multilingual project.
Reasons: When no file exist, matching with the current culture then default file is used by .net. For example you have two language based files
.fr.resx for French
.es.resx for Espanish for instance
And if current user's language is other than these for instance Arabic then the default resource file will be used. i.e. .resx without any specific language extensions.
I had problem with resources in VS2010 too. After trying to reference non existing resource in the resources table Visual Studio was crashing. It didn't even let me to correct the wrong reference because it was crashing all the time.
I fixed this problem by deleting the wrong line in the file with regular text editor and after that running the VS again.
It seems that VS2010 has some issues with resources.
I tried the above but when I attempted to rebuild I received errors as the compiler couldn't find the dataset by it's old name.
I know it might be lazy, but I'm used to being able to rename an item in it's properties window and have the refactoring happen silently behind the scenes for me. Is there a way I can do the same thing with a dataset or should I use the find and replace function (along with a fair bit of double checking). My project isn't especailly big so find-replace-check won't take to long but I might need to do it on bigger projects in future
G
EDIT: Attempting the below solution gives the following error
The file 'DataSet.cs' could not be refactored. The current object is auto-generated and only supports renaming through the DataSet Designer.
I would think that the VS2005 refactoring rename that's built in would handle this. Right-click an instance the object name in the code editor and select rename.
You can look here for further info: http://msdn.microsoft.com/en-us/library/ms379618.aspx#vs05_refac_topic8