path: root/cont.c
diff options
authorko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-06-11 03:14:59 +0000
committerko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-06-11 03:14:59 +0000
commit0a71db8a7497df37b984ea97abfce6b6ffd82df3 (patch)
treea8fc12e5b436e09ce0144b79315d32abe06c8c49 /cont.c
parent9b29e5f7e1855f5381227363970e4ff21f3e4ae6 (diff)
* 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). git-svn-id: svn+ssh:// b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'cont.c')
1 files changed, 4 insertions, 5 deletions
diff --git a/cont.c b/cont.c
index 4ca1279..83769ab 100644
--- a/cont.c
+++ b/cont.c
@@ -1059,9 +1059,8 @@ fiber_init(VALUE fibval, VALUE proc)
th->cfp->pc = 0;
th->cfp->sp = th->stack + 1;
th->cfp->bp = 0;
- th->cfp->lfp = th->stack;
- *th->cfp->lfp = 0;
- th->cfp->dfp = th->stack;
+ th->cfp->ep = th->stack;
+ *th->cfp->ep = VM_ENVVAL_BLOCK_PTR(0);
th->cfp->self = Qnil;
th->cfp->flag = 0;
th->cfp->iseq = 0;
@@ -1155,8 +1154,8 @@ rb_fiber_start(void)
argv = (argc = cont->argc) > 1 ? RARRAY_PTR(args) : &args;
cont->value = Qnil;
th->errinfo = Qnil;
- th->local_lfp = proc->block.lfp;
- th->local_svar = Qnil;
+ th->root_lep = rb_vm_ep_local_ep(proc->block.ep);
+ th->root_svar = Qnil;
fib->status = RUNNING;
cont->value = rb_vm_invoke_proc(th, proc, proc->block.self, argc, argv, 0);