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Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 57 |
1 files changed, 57 insertions, 0 deletions
@@ -1,3 +1,60 @@ +Mon Jun 11 12:14:37 2012 Koichi Sasada <ko1@atdot.net> + + * vm_core.h: remove lfp (local frame pointer) and rename + dfp (dynamic frame pointer) to ep (environment pointer). + This change make VM `normal' (similar to other interpreters). + Before this commit: + Each frame has two env pointers lfp and dfp. lfp points + local environment which is method/class/toplevel frame. + lfp[0] is block pointer. + dfp is block local frame. dfp[0] points previous (parent) + environment pointer. + lfp == dfp when frame is method/class/toplevel. + You can get lfp from dfp by traversing previous environment + pointers. + After this commit: + Each frame has only `ep' to point respective enviornoment. + If there is parent environment, then ep[0] points parent + envioenment (as dfp). If there are no more environment, + then ep[0] points block pointer (as lfp). We call such ep + as `LEP' (local EP). We add some macros to get LEP and to + detect LEP or not. + In short, we replace dfp and lfp with ep and LEP. + rb_block_t and rb_binding_t member `lfp' and `dfp' are removed + and member `ep' is added. + rename rb_thread_t's member `local_lfp' and `local_svar' to + `root_lep' and `root_svar'. + (VM_EP_PREV_EP(ep)): get previous environment pointer. This macro + assume that ep is not LEP. + (VM_EP_BLOCK_PTR(ep)): get block pointer. This macro assume + that ep is LEP. + (VM_EP_LEP_P(ep)): detect ep is LEP or not. + (VM_ENVVAL_BLOCK_PTR(ptr)): make block pointer. + (VM_ENVVAL_BLOCK_PTR_P(v)): detect v is block pointer. + (VM_ENVVAL_PREV_EP_PTR(ptr)): make prev environment pointer. + (VM_ENVVAL_PREV_EP_PTR_P(v)): detect v is prev env pointer. + + * vm.c: apply above changes. + (VM_EP_LEP(ep)): get LEP. + (VM_CF_LEP(cfp)): get LEP of cfp->ep. + (VM_CF_PREV_EP(cfp)): utility function VM_EP_PREV_EP(cfp->ep). + (VM_CF_BLOCK_PTR(cfp)): utility function VM_EP_BLOCK_PTR(cfp->ep). + + * vm.c, vm_eval.c, vm_insnhelper.c, vm_insnhelper.h, insns.def: + apply above changes. + + * cont.c: ditto. + + * eval.c, eval_intern.h: ditto. + + * proc.c: ditto. + + * thread.c: ditto. + + * vm_dump.c: ditto. + + * vm_exec.h: fix function name (on vm debug mode). + Mon Jun 11 11:52:18 2012 URABE Shyouhei <shyouhei@ruby-lang.org> * compile.c (iseq_set_sequence): nonstatic initializer of an |