Re: Unused imports
On Thursday, 30 January 2020 at 16:23:54 UTC, Michael wrote: Is there a way to detect unused imports? It happened to me that I used imports which I did not need in the end. So, I'd like to remove them easily. https://issues.dlang.org/show_bug.cgi?id=20442 TL;DR This has come up in the past and the typical answer was: "This should be implemented as a third party tool using dmd as a library". It is a problem that there are no currently available tools to do that (maybe visual-d greys out unused imports) but I do agree that it should be provided as a third party. Such a functionality could end up in: https://github.com/dlang-community/D-Scanner and it is also a good first time project for a beginner in the D ecosystem.
Unused imports
Is there a way to detect unused imports? It happened to me that I used imports which I did not need in the end. So, I'd like to remove them easily.
Re: How to warn of unused imports?
On Tuesday, 9 February 2016 at 17:54:30 UTC, Basile B. wrote: On Tuesday, 9 February 2016 at 15:21:59 UTC, Basile B. wrote: On Monday, 8 February 2016 at 20:48:29 UTC, cy wrote: On Monday, 8 February 2016 at 18:57:52 UTC, Basile B. wrote: Otherwise, it sounds like a decent enhancement request for DMD. I know other compilers who do this warning. It definitely does sound like a decent enhancement request. I didn't know it wasn't implemented yet, but it should be pretty straightforward, since within DMD you can access the AST. Alternatively, implementing DIP50 might let you do it outside the compiler. http://wiki.dlang.org/DIP50 DIP50 is a "golem" It looks usefull, and it will help in many cases...but after a while it'll become a problem. If you don't understand what's a "golem": AlquiaDa was the golem of the CIA (in the 80's while russians were fighting in Afgnan). Useful until a certain point. Useful until a certain point... It's time for me to leave...once again alcool drives me crazy... Latest weeks I've been ofensive against two guys: kinsley and lopatim...it's time for me to leave. https://www.youtube.com/watch?v=6ixdPnLFVIo seeya.
Re: How to warn of unused imports?
On Tuesday, 9 February 2016 at 15:21:59 UTC, Basile B. wrote: On Monday, 8 February 2016 at 20:48:29 UTC, cy wrote: On Monday, 8 February 2016 at 18:57:52 UTC, Basile B. wrote: Otherwise, it sounds like a decent enhancement request for DMD. I know other compilers who do this warning. It definitely does sound like a decent enhancement request. I didn't know it wasn't implemented yet, but it should be pretty straightforward, since within DMD you can access the AST. Alternatively, implementing DIP50 might let you do it outside the compiler. http://wiki.dlang.org/DIP50 DIP50 is a "golem" It looks usefull, and it will help in many cases...but after a while it'll become a problem. If you don't understand what's a "golem": AlquiaDa was the golem of the CIA (in the 80's while russians were fighting in Afgnan). Useful until a certain point. Useful until a certain point...
Re: How to warn of unused imports?
On Monday, 8 February 2016 at 20:48:29 UTC, cy wrote: On Monday, 8 February 2016 at 18:57:52 UTC, Basile B. wrote: Otherwise, it sounds like a decent enhancement request for DMD. I know other compilers who do this warning. It definitely does sound like a decent enhancement request. I didn't know it wasn't implemented yet, but it should be pretty straightforward, since within DMD you can access the AST. Alternatively, implementing DIP50 might let you do it outside the compiler. http://wiki.dlang.org/DIP50 DIP50 is a "golem" It looks usefull, and it will help in many cases...but after a while it'll become a problem.
Re: How to warn of unused imports?
On Monday, 8 February 2016 at 18:57:52 UTC, Basile B. wrote: Otherwise, it sounds like a decent enhancement request for DMD. I know other compilers who do this warning. It definitely does sound like a decent enhancement request. I didn't know it wasn't implemented yet, but it should be pretty straightforward, since within DMD you can access the AST. Alternatively, implementing DIP50 might let you do it outside the compiler. http://wiki.dlang.org/DIP50
Re: How to warn of unused imports?
On Monday, 8 February 2016 at 08:50:17 UTC, Daniel Kozak wrote: V Mon, 08 Feb 2016 08:25:09 + cy via Digitalmars-d-learn napsáno: When I factor out code from my modules, it really, really often leaves import statements that just sit there doing nothing, making it look like my program is more complex than it is. How do I get warned for leaving those, and a list of which ones I can safely remove? I dont think there is a way right now. But in a future dscanner. https://github.com/Hackerpilot/Dscanner/issues/134 I don't think that Dscanner will be able to do this soon. Its scope is limited to a single module, it's not like DCD, which works with the imports and which is able to look-up elsewhere. For example you'll see this if you try to make an analyzer that produces warnings for signed & unsigned comparison. It impossible without a bit of semantic (ref: https://github.com/Hackerpilot/Dscanner/issues/204). Otherwise, it sounds like a decent enhancement request for DMD. I know other compilers who do this warning.
Re: How to warn of unused imports?
On 02/08/2016 06:35 AM, Adam D. Ruppe wrote: On Monday, 8 February 2016 at 08:25:09 UTC, cy wrote: How do I get warned for leaving those, and a list of which ones I can safely remove? Remove one, recompile. If it passes, leave it. If not, undo and move on to the next one. Similarly, I comment out all; then uncomment one by one according to compilation errors. Ali
Re: How to warn of unused imports?
On Monday, 8 February 2016 at 08:25:09 UTC, cy wrote: How do I get warned for leaving those, and a list of which ones I can safely remove? Remove one, recompile. If it passes, leave it. If not, undo and move on to the next one.
Re: How to warn of unused imports?
V Mon, 08 Feb 2016 08:25:09 + cy via Digitalmars-d-learn napsáno: > When I factor out code from my modules, it really, really often > leaves import statements that just sit there doing nothing, > making it look like my program is more complex than it is. How do > I get warned for leaving those, and a list of which ones I can > safely remove? I dont think there is a way right now. But in a future dscanner. https://github.com/Hackerpilot/Dscanner/issues/134
How to warn of unused imports?
When I factor out code from my modules, it really, really often leaves import statements that just sit there doing nothing, making it look like my program is more complex than it is. How do I get warned for leaving those, and a list of which ones I can safely remove?
Re: How to get warnings about unused imports ?
You have to parse the unnamed import files, list all their identifiers (global variables, public functions etc.) and search for them. ;) That could be a bit complicated. ;) Therefore I don't want to do it. Even with named imports you can get false positives. But if you like it, you could improve it. The Lexer is my own and not that good, that would be start. On the wiki you can find other Lexer / Parsers, which are really good, but I haven't the time to replace my own and adapt the source or to work much on the project.
Re: How to get warnings about unused imports ?
On Wednesday, 3 July 2013 at 06:12:46 UTC, Namespace wrote: On Tuesday, 2 July 2013 at 21:49:37 UTC, Gabi wrote: Hi, How to find unused imports ? It seems the compiler doesn't do it, but is there any other tool for that? This seems like small issue, but those unused imports pile up pretty quickly Regards, Gabi I'm working on something like that for a few days. It is still not completely finished, but it works so far. But currently only for named imports. Everything else was far too much work for me. https://github.com/Dgame/SimpleDAT This is great. Maybe point me to the right direction how to implement finding unnamed imports too ? It could be great exercise for me to learn D :)
Re: How to get warnings about unused imports ?
On Tuesday, 2 July 2013 at 21:49:37 UTC, Gabi wrote: Hi, How to find unused imports ? It seems the compiler doesn't do it, but is there any other tool for that? This seems like small issue, but those unused imports pile up pretty quickly Regards, Gabi I'm working on something like that for a few days. It is still not completely finished, but it works so far. But currently only for named imports. Everything else was far too much work for me. https://github.com/Dgame/SimpleDAT
How to get warnings about unused imports ?
Hi, How to find unused imports ? It seems the compiler doesn't do it, but is there any other tool for that? This seems like small issue, but those unused imports pile up pretty quickly Regards, Gabi
