1. 04 Nov, 2011 1 commit
  2. 26 May, 2003 2 commits
  3. 12 May, 2003 1 commit
    • emarsden's avatar
      · 807d6f0f
      emarsden authored
      Add package locks. Bootfile boot8.lisp allows this to build without
      a cross-compile (or just select the CLOBBER-IT restart).
      
         - two extra PACKAGE-LOCK and PACKAGE-DEFINITION-LOCK slots added to
           the package structure. These can be modified using the
           EXT:PACKAGE-LOCK and EXT:PACKAGE-DEFINITION-LOCK accessors.
      
         - macro EXT:WITHOUT-PACKAGE-LOCKS that evaluates forms with all
           package locks disabled (this is done by binding the global
           variable CL::*ENABLE-PACKAGE-LOCKED-ERRORS*)
      
         - new PACKAGE-LOCKED-ERROR condition
      
         - in SETF-FDEFINITION-HOOK and in the DEFMACRO, DEFSTRUCT, DEFTYPE
           and DEFCLASS defining forms, check whether the definition would
           modify a package whose definition-lock is enabled, and signal a
           package-locked-error condition with restarts that allow you to
           unlock the package or ignore the lock
      
         - in EXPORT, UNEXPORT etc check whether the target package is
           guarded by a package-lock, and signal an error
      
         - disable package locks when loading a subsystem
      
         - disable package locks in certain areas of PCL and in the
           MAKE-LOAD-FORM support of the compiler, where code is generated
           inside system packages at runtime
      807d6f0f