Here's a complex example using clojure.reflect, the intent of which was to create a macro that emits type-hints for the actual constructors that are available, to resolve ambiguity when there are multiple constructors with the same number of arguments that differ in type.
https://github.com/gtrak/interop/blob/master/src/interop/core.clj On Fri, May 27, 2016 at 1:25 PM Gary Trakhman <gary.trakh...@gmail.com> wrote: > Yes, you'll have to use the reflection API to create a class dynamically. > > https://docs.oracle.com/javase/tutorial/reflect/member/ctorInstance.html > > On Fri, May 27, 2016 at 1:24 PM hiskennyness <kentil...@gmail.com> wrote: > >> qooxdoo lets us supply oft-used widget parameters to the constructor. For >> example, a button can specify its label and icon at new time. And this >> works fine from cljs: >> >> (new qx.ui.mobile.form.Button "Go!") ;; label is the first arg >> >> But I am wrapping qooxdoo in something more concise and want to be able >> to code: >> >> (qxia/make (::Button "Go!") >> ..other init params to be "set" >> >> Unfortunately I cannot even >> >> (new (qx-class qia-type)) ;; computed class >> >> Let alone >> >> (apply new (qx-class qxia-type) make-inits) >> >> Not that I thought I would get away with it. :) I grok new is special. >> >> I can fall back on the qooxdoo API and use setLabel and setIcon, but I >> like learning so I thought I would ask if there were some way to: >> >> 1. compute a class (preferably by first constructing a name) and/or >> 2. do the moral equivalent of applying new to parameters >> >> -hk >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clojure@googlegroups.com >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+unsubscr...@googlegroups.com >> For more options, visit this group at >> http://groups.google.com/group/clojure?hl=en >> --- >> You received this message because you are subscribed to the Google Groups >> "Clojure" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to clojure+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. >> > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
