diff options
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 42 |
1 files changed, 30 insertions, 12 deletions
@@ -29342,11 +29342,12 @@ which the variable .meta param is bound to the structure object. -The +Multiple .code :init -specifier may not appear more than once in a given +specifiers may appear in the same .code defstruct -form. +form. They are executed in their order of appearance, +left to right. When an object with one or more levels of inheritance is instantiated, the @@ -29391,6 +29392,7 @@ of an .code :init specifier are not surrounded by an implicit .codn block . + .meIP (:postinit <> ( param ) << body-form *) The .code :postinit @@ -29419,8 +29421,13 @@ actions, .code :postinit actions registered at different levels of the type's inheritance hierarchy are invoked in the base-to-derived -order, and in right-to-left order among multiple bases -at the same level. +order, in right-to-left order among multiple bases +at the same level. Multiple +.code :postinit +form in the same +.code defstruct +are invoked in left-to-right order. + .meIP (:fini <> ( param ) << body-form *) The .code :fini @@ -29454,9 +29461,11 @@ of a specifier are not surrounded by an implicit .codn block . -At most one +Multiple .code :fini -may be specified. +clauses may be specified in the same +.codn defstruct , +in which case they are invoked in reverse, right-to-left order. Note that an object's finalizers can be called explicitly with .codn call-finalizers . @@ -29464,6 +29473,7 @@ Note: the .code with-objects macro arranges for finalizers to be called on objects when the execution of a scope terminates by any means. + .meIP (:postfini <> ( param ) << body-form *) Like .codn :fini , @@ -29493,17 +29503,25 @@ this omits the parameter, which means that .code :postfini finalizers of derived structures execute after the execution of inherited -finalizers. When both +finalizers. It also means that multiple +.code :postfini +finalizers appearing in the same +.code defstruct +execute in left-to-right order unlike the reverse right-to-left order of +.code :fini +finalizers. + +When both .code :fini and .code :postfini -are specified in the same +clauses are specified in the same .code defstruct -form, the +form, all the .code :postfini -finalizer executes after the +finalizers execute after all the .code :fini -finalizer regardless of the order in which they appear. +finalizers regardless of the order in which they appear. .RE .IP The slot names given in a |