diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/lapi.js | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/src/lapi.js b/src/lapi.js index 71cf3f6..dc60984 100644 --- a/src/lapi.js +++ b/src/lapi.js @@ -36,9 +36,11 @@ const index2addr = function(L, idx) { assert(idx <= ci.top - (ci.funcOff + 1), "unacceptable index"); if (o >= L.top) return nil; else return L.stack[o]; - } else if (idx < 0) // TODO: pseudo-indices - return nil; // TODO: G(L)->l_registry - else { /* upvalues */ + } else if (idx < 0) { // TODO: pseudo-indices + assert(idx !== 0 && -idx <= L.top, "invalid index"); + return L.stack[L.top + idx]; + // TODO: if (idx == LUA_REGISTRYINDEX) return &G(L)->l_registry; + } else { /* upvalues */ idx = -idx; assert(idx <= MAXUPVAL + 1, "upvalue index too large"); if (ci.func.ttislcf()) /* light C function? */ @@ -59,7 +61,7 @@ const lua_gettop = function(L) { }; const lua_pushvalue = function(L, idx) { - L.stack[L.top] = L.stack[index2addr(L, idx)]; + L.stack[L.top] = index2addr(L, idx); L.top++; assert(L.top <= L.ci.top, "stack overflow"); @@ -166,7 +168,7 @@ const lua_pushlightuserdata = function(L, p) { */ const lua_toboolean = function(L, idx) { - let o = L.stack[index2addr(L, idx)]; + let o = index2addr(L, idx); return !l_isfalse(o); }; @@ -205,7 +207,7 @@ const lua_pcallk = function(L, nargs, nresults, errfunc, ctx, k) { if (errfunc === 0) func = 0; else { - let o = L.stack[index2addr(L, errfunc)]; + let o = index2addr(L, errfunc); // TODO: api_checkstackindex(L, errfunc, o); func = errfunc; } |