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Diffstat (limited to 'src/ldebug.js')
-rw-r--r--src/ldebug.js21
1 files changed, 13 insertions, 8 deletions
diff --git a/src/ldebug.js b/src/ldebug.js
index 5b537c2..13b9da7 100644
--- a/src/ldebug.js
+++ b/src/ldebug.js
@@ -17,8 +17,13 @@ const lvm = require('./lvm.js');
const CT = defs.constant_types;
const TS = defs.thread_status;
+const currentpc = function(ci) {
+ assert(ci.callstatus & lstate.CIST_LUA);
+ return ci.l_savedpc - 1;
+};
+
const currentline = function(ci) {
- return ci.func.value.p.lineinfo ? ci.func.value.p.lineinfo[ci.pcOff-1] : -1;
+ return ci.func.value.p.lineinfo ? ci.func.value.p.lineinfo[currentpc(ci)] : -1;
};
/*
@@ -43,7 +48,7 @@ const lua_sethook = function(L, func, mask, count) {
func = null;
}
if (L.ci.callstatus & lstate.CIST_LUA)
- L.oldpc = L.ci.pcOff;
+ L.oldpc = L.ci.l_savedpc;
L.hook = func;
L.basehookcount = count;
L.hookcount = L.basehookcount;
@@ -105,7 +110,7 @@ const findlocal = function(L, ci, n) {
return findvararg(ci, -n);
else {
base = ci.l_base;
- name = lfunc.luaF_getlocalname(ci.func.value.p, n, ci.pcOff);
+ name = lfunc.luaF_getlocalname(ci.func.value.p, n, currentpc(ci));
}
} else
base = ci.funcOff + 1;
@@ -439,7 +444,7 @@ const funcnamefromcode = function(L, ci) {
let tm = 0; /* (initial value avoids warnings) */
let p = ci.func.value.p; /* calling function */
- let pc = ci.pcOff - 1; /* calling instruction index */
+ let pc = currentpc(ci); /* calling instruction index */
let i = p.code[pc]; /* calling instruction */
if (ci.callstatus & lstate.CIST_HOOKED) {
@@ -529,7 +534,7 @@ const varinfo = function(L, o) {
kind = getupvalname(L, ci, o); /* check whether 'o' is an upvalue */
let stkid = isinstack(L, ci, o);
if (!kind && stkid) /* no? try a register */
- kind = getobjname(ci.func.value.p, ci.pcOff - 1, stkid - ci.l_base);
+ kind = getobjname(ci.func.value.p, currentpc(ci), stkid - ci.l_base);
}
return kind ? lobject.luaO_pushfstring(L, defs.to_luastring(" (%s '%s')", true), kind.funcname, kind.name) : defs.to_luastring("", true);
@@ -620,14 +625,14 @@ const luaG_traceexec = function(L) {
ldo.luaD_hook(L, defs.LUA_HOOKCOUNT, -1); /* call count hook */
if (mask & defs.LUA_MASKLINE) {
let p = ci.func.value.p;
- let npc = ci.pcOff; // pcRel(ci.u.l.savedpc, p);
+ let npc = ci.l_savedpc; // pcRel(ci.u.l.savedpc, p);
let newline = p.lineinfo ? p.lineinfo[npc] : -1;
if (npc === 0 || /* call linehook when enter a new function, */
- ci.pcOff <= L.oldpc || /* when jump back (loop), or when */
+ ci.l_savedpc <= L.oldpc || /* when jump back (loop), or when */
newline !== p.lineinfo ? p.lineinfo[L.oldpc] : -1) /* enter a new line */
ldo.luaD_hook(L, defs.LUA_HOOKLINE, newline); /* call line hook */
}
- L.oldpc = ci.pcOff;
+ L.oldpc = ci.l_savedpc;
if (L.status === TS.LUA_YIELD) { /* did hook yield? */
if (counthook)
L.hookcount = 1; /* undo decrement to zero */