DOC HOME SITE MAP MAN PAGES GNU INFO SEARCH
 

(guile.info.gz) About Closure

Info Catalog (guile.info.gz) About Expressions (guile.info.gz) Basic Ideas
 
 14.4 The Concept of Closure
 ===========================
 
 The concept of "closure" is the idea that a lambda expression
 "captures" the variable bindings that are in lexical scope at the point
 where the lambda expression occurs.  The procedure created by the
 lambda expression can refer to and mutate the captured bindings, and the
 values of those bindings persist between procedure calls.
 
    This section explains and explores the various parts of this idea in
 more detail.
 

Menu

 
* About Environments          Names, locations, values and environments.
* Local Variables             Local variables and local environments.
* Chaining                    Environment chaining.
* Lexical Scope               The meaning of lexical scoping.
* Closure                     Explaining the concept of closure.
* Serial Number               Example 1: a serial number generator.
* Shared Variable             Example 2: a shared persistent variable.
* Callback Closure            Example 3: the callback closure problem.
* OO Closure                  Example 4: object orientation.
 
Info Catalog (guile.info.gz) About Expressions (guile.info.gz) Basic Ideas
automatically generated byinfo2html