ClojureScript

• Type: Enhancement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: None
• Fix Version/s: None
• Component/s: None
• Labels:

  • patch,

See discussion of Vars in CLJS here: http://dev.clojure.org/display/design/Dynamic+Binding
My goal is to eventually implement dynamic scope capture, via bound-fn and friends. The attached patch is a step in that direction.

This patch adds support for parsing the (var foo) form. The #' reader macro is provided by JVM Clojure.

#'foo emits code to construct a Var object. In this patch, each invocation of 'var will create a unique Var object. This means they are '= by fully qualified symbol, but not 'identical?. Simple memoization would fix that, but I'm not going to bother until I get to Dynamic Var objects.

The main advantage of this level of Var support is for the interactive development convenience of being able to defer dereferencing top-levels. For example, (def fog (comp f #'g)) will pick up redefinitions of 'g, but not of 'f.

1. 

   vars1.patch

   27/Apr/12 10:51 PM

   6 kB

   Brandon Bloom

• Assignee:

  Unassigned

  Reporter:

  Brandon Bloom

• Created:

  27/Apr/12 10:51 PM

  Updated:

  28/Oct/12 9:03 PM