I think the earlier discussion was for a more ambitious feature than the one suggested below. This would be to fill in just a template of the arguments *after* the function name had already been entered. Would not involve searching for functions/methods applicable to a particular type. --- nadeem
On Jun 5, 2010, at 12:20 PM, Matthias Felleisen wrote: > > We discussed this extensively a while a ago on this list in response to a > comment by Simon Peyton Jones when he visited NEU for a few days -- Matthias > > > > From: Paul Steckler <steck at stecksoft.com> > Date: June 4, 2010 10:20:29 PM EDT > To: dev at racket-lang.org > Subject: [racket-dev] Feature suggestion > > Over the past few months, I've had to spend a lot of time in Visual > Studio (no comments from the > peanut gallery, please!). It has a feature that might be useful in > DrRacket. When you enter a > class or class instance name followed by a dot, you get a popup of > valid methods. Yes, DrRacket > has the name completion feature. But after you enter one of the VS > method names and an open > paren, you get a signature (or often, many signatures due to a > maddening number of overloads). > As you type in arguments, the relevant part of the signature becomes > bold-faced. > > You really get addicted to this setup -- see the article "Does Visual > Studio Rot the Mind?" by > Charles Petzold. > > Currently, DrRacket offers name completion and the ability to lookup > names in Help Desk. > That works, but it's a bit ungainly. It would be ne plus ultra cool > if when you entered > > (some-fun > > you got a popup with the arguments to be entered. If `some-fun' is > in Help Desk, their arguments > could have their names and types. If `some-fun' is defined in the > current file or require'd, you'd > just have the argument names. Ambitiously, if the argument had a > corresponding predicate in a > contract, you could show that. > > -- Paul > On Jun 4, 2010, at 10:47 PM, Neil Van Dyke wrote: > >> Perhaps also worth considering for inspiration is "elsoc", a useful hack >> that Emacs has had for arguments quick-reference. >> >> "eldoc" does a transient display of the args to the innermost function/form >> that point is in. This display appears in the ``echo area'' of the frame >> (roughly, status bar at the bottom of the window), so you can glance at it, >> but it doesn't get in your face while you're looking at the code and typing. >> >> http://www.gnu.org/software/emacs/manual/html_node/emacs/Lisp-Doc.html >> http://www.emacswiki.org/emacs/ElDoc >> >> I'm sure that DrRacket would do it not as a hack like "eldoc", but instead >> use some info that Check Syntax has. :) >> >> Neil V. >> >> _________________________________________________ >> For list-related administrative tasks: >> http://lists.racket-lang.org/listinfo/dev > > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/dev -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.racket-lang.org/dev/archive/attachments/20100605/06446d57/attachment.html>
