Hi Alexander, Thank you for your very long answer.
You where guessing right about the circular dependencies. Because there are so many vocabularies, problems like that happen rather often. I am really looking for better and faster ways to find these, and a way of working that make it less likely that they happen. Best regards, Leon Quoting "Alexander J. Vondrak" <ajvond...@csupomona.edu>: > I'm not really sure if there was a question in there... > >> Loading all the vocabularies, which all load many other vocabularies, >> is not easy to do. > > If you're just sitting down at your editor, typing vocab names into the > `USING:` line, then yeah, it's going to be difficult to know exactly which > vocabs you're supposed to specify. That's why you use the listener. > > Say I'm working on a file, factor/work/blah/blah.factor. While I'm jotting > down some code, I either don't know what I need in the `USING:` or forget to > put something in there. > > USING: ; ! ??? > > "Blah" print > >> From the listener, I type `USE: blah`, and I get a helpful error message. > > IN: scratchpad USE: blah > Loading resource:work/blah/blah.factor > 1: USE: blah > ^ > resource:work/blah/blah.factor > > 1: "Blah" print > ^ > No word named “print” found in current vocabulary search path > > The following restarts are available: > > :1 Use the io vocabulary > :2 Defer word in current vocabulary > :3 Load resource:work/blah/blah.factor again > > Type :help for debugging help. > > It gives me several options to recover from this error, including a > suggestion > for which vocab to load to find the word `print` (note that this > doesn't always > work, if Factor can't find a particular word name in the current > search path). > In this case, I can type `:1` to use the `io` vocab. > > IN: scratchpad :1 > resource:work/blah/blah.factor:1: Note: > Added "io" vocabulary to search path > > Restarts were invoked adding vocabularies to the search path. > To avoid doing this in the future, add the following forms > at the top of the source file: > > USING: io ; > > Also, take a look at > http://docs.factorcode.org/content/article-images.html and > http://docs.factorcode.org/content/word-auto-use__que__%2Cparser.html > >> I often have to solve problems with interdependencies. It is not >> easy to find >> the cause of these problems. > > What sort of problems? And what sort of interdependencies? Like vocabs > depending on vocabs? I struggle to think of a problem with that, because the > chain of dependencies shouldn't be an issue, unless there's a cycle. E.g., > > ! In a.factor > USING: b ; > IN: a > : a-word ( -- ) b-word ; > > ! In b.factor > USING: io ; > IN: b > : b-word ( -- ) "Called b-word" print ; > > ! At the listener > IN: scratchpad USE: a > Loading resource:work/a/a.factor > Loading resource:work/b/b.factor > IN: scratchpad a-word > Called b-word > > Notice that a.factor doesn't need to have `USING: io`, even though b.factor > does. So you don't need to think about anything beyond a file's immediate > dependencies. I guess there would be an issue if you had a cyclic > dependency, > which needs to be resolved manually (or, more practically speaking, removed): > > ! In a.factor > USING: b io ; > IN: a > > : a-word1 ( -- ) b-word ; > > : a-word2 ( -- ) "Called a-word2" print ; > > ! In b.factor > USING: a ; > > : b-word ( -- ) a-word2 ; > > ! At the listener > IN: scratchpad USE: a > Loading resource:work/a/a.factor > Loading resource:work/b/b.factor > 1: USE: a > ^ > resource:work/a/a.factor > > 1: USING: b io ; > ^ > resource:work/b/b.factor > > 4: : b-word ( -- ) a-word2 ; > ^ > No word named “a-word2” found in current vocabulary search path > > The following restarts are available: > > :1 Defer word in current vocabulary > :2 Load resource:work/b/b.factor again > :3 Load resource:work/a/a.factor again > > Type :help for debugging help. > IN: scratchpad :3 > Loading resource:work/a/a.factor > Loading resource:work/b/b.factor > Loading resource:work/a/a.factor > IN: scratchpad a-word1 > Called a-word2 > > Maybe by "interdependencies" you mean that vocabs can step on each others' > toes? If two vocabs define different words with the same name, there will be > an ambiguity. To resolve, see > http://docs.factorcode.org/content/word-FROM__colon__,syntax.html > >> In the developer tools I saw some interesting words for working with >> vocabularies. There might be a solution to my problem, if I use these >> tools, but I do not know where to start. > > Which interesting words? Sorry, I'm running out of psychic abilities. :) > > If you aren't sure what certain words do, it's helpful to browse > through their > documentation. Even if a word isn't quite what you want, there are usually > related things you can click on, looking for related words until you stumble > onto something useful. > > Hope any of that helps, > --Alex Vondrak > ------------------------------------------------------------------------------ > Monitor your physical, virtual and cloud infrastructure from a single > web console. 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