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remove "externals" from the vm

* libguile/frames.c (scm_frame_external_link): Removed.
* libguile/frames.h: No need to have the "external link" in the stack
  frame -- update macros to take the new situation into account.

* libguile/objcodes.h (struct scm_objcode): Rename the nexts field to
  "unused". In the future we can use it for nlocs, I think.
  (SCM_OBJCODE_NEXTS): removed.

* libguile/programs.h:
* libguile/programs.c (scm_make_program): Expect the third argument to
  be a vector of free variables, not a list of free variables.
  SCM_BOOL_F indicates no free variables, not SCM_EOL.
  (program_mark): Adapt.
  (scm_program_arity): No more nexts.
  (scm_program_free_vars): Replaces scm_program_externals.

* libguile/vm-engine.c (VM_CHECK_EXTERNAL)
  (vm_engine): No need for the "external" var.
* libguile/vm-engine.h (CACHE_PROGRAM): Update for SCM_PROGRAM_FREE_VARS
  instead of SCM_PROGRAM_EXTERNALS.
  (NEW_FRAME): Update for new frame size, and no need to cons up
  externals. Yay :)

* libguile/vm-i-loader.c (load-program): Update for scm_make_program.

* libguile/vm-i-system.c (external-ref, external-set): No more.
  (make-closure): No more.
  (goto/args): No need to re-cons externals here. Update for new stack
  frame size.
  (mv-call, return, return/values): Update for new frame size. No need
  to reinstate externals on return.

* libguile/vm.c (really_make_boot_program, scm_load_compiled_with_vm):
  Update for scm_make_program.
* module/language/objcode/spec.scm (objcode-env-externals): Treat '() as
  #f, for the externals. Need to clean this up later...
* module/system/vm/program.scm (arity:nexts): Remove. Rename
  program-external to program-free-vars.
This commit is contained in:
Andy Wingo 2009-07-23 17:12:10 +02:00
parent 66d3e9a32c
commit 20d47c3915
12 changed files with 59 additions and 183 deletions

View file

@ -26,7 +26,7 @@ struct scm_objcode {
scm_t_uint8 nargs;
scm_t_uint8 nrest;
scm_t_uint8 nlocs;
scm_t_uint8 nexts;
scm_t_uint8 unused;
scm_t_uint32 len; /* the maximum index of base[] */
scm_t_uint32 metalen; /* well, i lie. this many bytes at the end of
base[] for metadata */
@ -49,7 +49,6 @@ SCM_API scm_t_bits scm_tc16_objcode;
#define SCM_OBJCODE_NARGS(x) (SCM_OBJCODE_DATA (x)->nargs)
#define SCM_OBJCODE_NREST(x) (SCM_OBJCODE_DATA (x)->nrest)
#define SCM_OBJCODE_NLOCS(x) (SCM_OBJCODE_DATA (x)->nlocs)
#define SCM_OBJCODE_NEXTS(x) (SCM_OBJCODE_DATA (x)->nexts)
#define SCM_OBJCODE_BASE(x) (SCM_OBJCODE_DATA (x)->base)
#define SCM_OBJCODE_IS_MMAP(x) (SCM_SMOB_FLAGS (x) & SCM_F_OBJCODE_IS_MMAP)