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path: root/src/lvm.js
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Diffstat (limited to 'src/lvm.js')
-rw-r--r--src/lvm.js257
1 files changed, 176 insertions, 81 deletions
diff --git a/src/lvm.js b/src/lvm.js
index e308807..724f689 100644
--- a/src/lvm.js
+++ b/src/lvm.js
@@ -34,12 +34,13 @@ const luaV_finishOp = function(L) {
case OCi.OP_MOD: case OCi.OP_POW:
case OCi.OP_UNM: case OCi.OP_BNOT: case OCi.OP_LEN:
case OCi.OP_GETTABUP: case OCi.OP_GETTABLE: case OCi.OP_SELF: {
- lobject.setobjs2s(L, base + inst.A, --L.top);
+ lobject.setobjs2s(L, base + inst.A, L.top-1);
+ delete L.stack[--L.top];
break;
}
case OCi.OP_LE: case OCi.OP_LT: case OCi.OP_EQ: {
let res = !L.stack[L.top - 1].l_isfalse();
- L.top--;
+ delete L.stack[--L.top];
if (ci.callstatus & lstate.CIST_LEQ) { /* "<=" using "<" instead? */
assert(op === OCi.OP_LE);
ci.callstatus ^= lstate.CIST_LEQ; /* clear mark */
@@ -61,17 +62,39 @@ const luaV_finishOp = function(L) {
}
/* move final result to final position */
lobject.setobjs2s(L, ci.l_base + inst.A, L.top - 1);
- L.top = ci.top; /* restore top */
+ /* restore top */
+ if (L.top < ci.top) {
+ while (L.top < ci.top)
+ L.stack[L.top++] = new lobject.TValue(CT.LUA_TNIL, null);
+ } else {
+ while (L.top > ci.top)
+ delete L.stack[--L.top];
+ }
break;
}
case OCi.OP_TFORCALL: {
assert(ci.l_code[ci.l_savedpc].opcode === OCi.OP_TFORLOOP);
- L.top = ci.top; /* correct top */
+ /* correct top */
+ if (L.top < ci.top) {
+ while (L.top < ci.top)
+ L.stack[L.top++] = new lobject.TValue(CT.LUA_TNIL, null);
+ } else {
+ while (L.top > ci.top)
+ delete L.stack[--L.top];
+ }
break;
}
case OCi.OP_CALL: {
- if (inst.C - 1 >= 0) /* nresults >= 0? */
- L.top = ci.top; /* adjust results */
+ if (inst.C - 1 >= 0) { /* nresults >= 0? */
+ /* adjust results */
+ if (L.top < ci.top) {
+ while (L.top < ci.top)
+ L.stack[L.top++] = new lobject.TValue(CT.LUA_TNIL, null);
+ } else {
+ while (L.top > ci.top)
+ delete L.stack[--L.top];
+ }
+ }
break;
}
}
@@ -135,7 +158,7 @@ const luaV_execute = function(L) {
break;
}
case OCi.OP_LOADBOOL: {
- L.stack[ra] = new lobject.TValue(CT.LUA_TBOOLEAN, i.B !== 0);
+ L.stack[ra].setbvalue(i.B !== 0);
if (i.C !== 0)
ci.l_savedpc++; /* skip next instruction (if C) */
@@ -144,7 +167,7 @@ const luaV_execute = function(L) {
}
case OCi.OP_LOADNIL: {
for (let j = 0; j <= i.B; j++)
- L.stack[ra + j] = new lobject.TValue(CT.LUA_TNIL, null);
+ L.stack[ra + j].setnilvalue();
break;
}
case OCi.OP_GETUPVAL: {
@@ -155,7 +178,7 @@ const luaV_execute = function(L) {
case OCi.OP_SETUPVAL: {
let uv = cl.upvals[i.B];
if (uv.isopen()) {
- uv.L.stack[uv.v] = L.stack[ra];
+ uv.L.stack[uv.v].setfrom(L.stack[ra]);
} else {
uv.value.setfrom(L.stack[ra]);
}
@@ -192,7 +215,7 @@ const luaV_execute = function(L) {
break;
}
case OCi.OP_NEWTABLE: {
- L.stack[ra] = new lobject.TValue(CT.LUA_TTABLE, ltable.luaH_new(L));
+ L.stack[ra].sethvalue(ltable.luaH_new(L));
break;
}
case OCi.OP_SELF: {
@@ -210,11 +233,11 @@ const luaV_execute = function(L) {
let numberop2 = tonumber(op2);
if (op1.ttisinteger() && op2.ttisinteger()) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, (op1.value + op2.value)|0);
+ L.stack[ra].setivalue((op1.value + op2.value)|0);
} else if (numberop1 !== false && numberop2 !== false) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMFLT, numberop1 + numberop2);
+ L.stack[ra].setfltvalue(numberop1 + numberop2);
} else {
- ltm.luaT_trybinTM(L, op1, op2, ra, ltm.TMS.TM_ADD);
+ ltm.luaT_trybinTM(L, op1, op2, L.stack[ra], ltm.TMS.TM_ADD);
}
break;
}
@@ -225,11 +248,11 @@ const luaV_execute = function(L) {
let numberop2 = tonumber(op2);
if (op1.ttisinteger() && op2.ttisinteger()) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, (op1.value - op2.value)|0);
+ L.stack[ra].setivalue((op1.value - op2.value)|0);
} else if (numberop1 !== false && numberop2 !== false) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMFLT, numberop1 - numberop2);
+ L.stack[ra].setfltvalue(numberop1 - numberop2);
} else {
- ltm.luaT_trybinTM(L, op1, op2, ra, ltm.TMS.TM_SUB);
+ ltm.luaT_trybinTM(L, op1, op2, L.stack[ra], ltm.TMS.TM_SUB);
}
break;
}
@@ -240,11 +263,11 @@ const luaV_execute = function(L) {
let numberop2 = tonumber(op2);
if (op1.ttisinteger() && op2.ttisinteger()) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, Math.imul(op1.value, op2.value));
+ L.stack[ra].setivalue(Math.imul(op1.value, op2.value));
} else if (numberop1 !== false && numberop2 !== false) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMFLT, numberop1 * numberop2);
+ L.stack[ra].setfltvalue(numberop1 * numberop2);
} else {
- ltm.luaT_trybinTM(L, op1, op2, ra, ltm.TMS.TM_MUL);
+ ltm.luaT_trybinTM(L, op1, op2, L.stack[ra], ltm.TMS.TM_MUL);
}
break;
}
@@ -255,11 +278,11 @@ const luaV_execute = function(L) {
let numberop2 = tonumber(op2);
if (op1.ttisinteger() && op2.ttisinteger()) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, luaV_mod(L, op1.value, op2.value));
+ L.stack[ra].setivalue(luaV_mod(L, op1.value, op2.value));
} else if (numberop1 !== false && numberop2 !== false) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMFLT, llimit.luai_nummod(L, numberop1, numberop2));
+ L.stack[ra].setfltvalue(llimit.luai_nummod(L, numberop1, numberop2));
} else {
- ltm.luaT_trybinTM(L, op1, op2, ra, ltm.TMS.TM_MOD);
+ ltm.luaT_trybinTM(L, op1, op2, L.stack[ra], ltm.TMS.TM_MOD);
}
break;
}
@@ -270,9 +293,9 @@ const luaV_execute = function(L) {
let numberop2 = tonumber(op2);
if (numberop1 !== false && numberop2 !== false) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMFLT, Math.pow(numberop1, numberop2));
+ L.stack[ra].setfltvalue(Math.pow(numberop1, numberop2));
} else {
- ltm.luaT_trybinTM(L, op1, op2, ra, ltm.TMS.TM_POW);
+ ltm.luaT_trybinTM(L, op1, op2, L.stack[ra], ltm.TMS.TM_POW);
}
break;
}
@@ -283,9 +306,9 @@ const luaV_execute = function(L) {
let numberop2 = tonumber(op2);
if (numberop1 !== false && numberop2 !== false) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMFLT, numberop1 / numberop2);
+ L.stack[ra].setfltvalue(numberop1 / numberop2);
} else {
- ltm.luaT_trybinTM(L, op1, op2, ra, ltm.TMS.TM_DIV);
+ ltm.luaT_trybinTM(L, op1, op2, L.stack[ra], ltm.TMS.TM_DIV);
}
break;
}
@@ -296,11 +319,11 @@ const luaV_execute = function(L) {
let numberop2 = tonumber(op2);
if (op1.ttisinteger() && op2.ttisinteger()) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, luaV_div(L, op1.value, op2.value));
+ L.stack[ra].setivalue(luaV_div(L, op1.value, op2.value));
} else if (numberop1 !== false && numberop2 !== false) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMFLT, Math.floor(numberop1 / numberop2));
+ L.stack[ra].setfltvalue(Math.floor(numberop1 / numberop2));
} else {
- ltm.luaT_trybinTM(L, op1, op2, ra, ltm.TMS.TM_IDIV);
+ ltm.luaT_trybinTM(L, op1, op2, L.stack[ra], ltm.TMS.TM_IDIV);
}
break;
}
@@ -311,9 +334,9 @@ const luaV_execute = function(L) {
let numberop2 = tointeger(op2);
if (numberop1 !== false && numberop2 !== false) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, (numberop1 & numberop2));
+ L.stack[ra].setivalue(numberop1 & numberop2);
} else {
- ltm.luaT_trybinTM(L, op1, op2, ra, ltm.TMS.TM_BAND);
+ ltm.luaT_trybinTM(L, op1, op2, L.stack[ra], ltm.TMS.TM_BAND);
}
break;
}
@@ -324,9 +347,9 @@ const luaV_execute = function(L) {
let numberop2 = tointeger(op2);
if (numberop1 !== false && numberop2 !== false) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, (numberop1 | numberop2));
+ L.stack[ra].setivalue(numberop1 | numberop2);
} else {
- ltm.luaT_trybinTM(L, op1, op2, ra, ltm.TMS.TM_BOR);
+ ltm.luaT_trybinTM(L, op1, op2, L.stack[ra], ltm.TMS.TM_BOR);
}
break;
}
@@ -337,9 +360,9 @@ const luaV_execute = function(L) {
let numberop2 = tointeger(op2);
if (numberop1 !== false && numberop2 !== false) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, (numberop1 ^ numberop2));
+ L.stack[ra].setivalue(numberop1 ^ numberop2);
} else {
- ltm.luaT_trybinTM(L, op1, op2, ra, ltm.TMS.TM_BXOR);
+ ltm.luaT_trybinTM(L, op1, op2, L.stack[ra], ltm.TMS.TM_BXOR);
}
break;
}
@@ -350,9 +373,9 @@ const luaV_execute = function(L) {
let numberop2 = tointeger(op2);
if (numberop1 !== false && numberop2 !== false) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, luaV_shiftl(numberop1, numberop2));
+ L.stack[ra].setivalue(luaV_shiftl(numberop1, numberop2));
} else {
- ltm.luaT_trybinTM(L, op1, op2, ra, ltm.TMS.TM_SHL);
+ ltm.luaT_trybinTM(L, op1, op2, L.stack[ra], ltm.TMS.TM_SHL);
}
break;
}
@@ -363,9 +386,9 @@ const luaV_execute = function(L) {
let numberop2 = tointeger(op2);
if (numberop1 !== false && numberop2 !== false) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, luaV_shiftl(numberop1, -numberop2));
+ L.stack[ra].setivalue(luaV_shiftl(numberop1, -numberop2));
} else {
- ltm.luaT_trybinTM(L, op1, op2, ra, ltm.TMS.TM_SHR);
+ ltm.luaT_trybinTM(L, op1, op2, L.stack[ra], ltm.TMS.TM_SHR);
}
break;
}
@@ -374,11 +397,11 @@ const luaV_execute = function(L) {
let numberop = tonumber(op);
if (op.ttisinteger()) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, (-op.value)|0);
+ L.stack[ra].setivalue((-op.value)|0);
} else if (numberop !== false) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMFLT, -numberop);
+ L.stack[ra].setfltvalue(-numberop);
} else {
- ltm.luaT_trybinTM(L, op, op, ra, ltm.TMS.TM_UNM);
+ ltm.luaT_trybinTM(L, op, op, L.stack[ra], ltm.TMS.TM_UNM);
}
break;
}
@@ -386,19 +409,19 @@ const luaV_execute = function(L) {
let op = L.stack[RB(L, base, i)];
if (op.ttisinteger()) {
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, ~op.value);
+ L.stack[ra].setivalue(~op.value);
} else {
- ltm.luaT_trybinTM(L, op, op, ra, ltm.TMS.TM_BNOT);
+ ltm.luaT_trybinTM(L, op, op, L.stack[ra], ltm.TMS.TM_BNOT);
}
break;
}
case OCi.OP_NOT: {
let op = L.stack[RB(L, base, i)];
- L.stack[ra] = new lobject.TValue(CT.LUA_TBOOLEAN, op.l_isfalse());
+ L.stack[ra].setbvalue(op.l_isfalse());
break;
}
case OCi.OP_LEN: {
- luaV_objlen(L, ra, L.stack[RB(L, base, i)]);
+ luaV_objlen(L, L.stack[ra], L.stack[RB(L, base, i)]);
break;
}
case OCi.OP_CONCAT: {
@@ -408,7 +431,14 @@ const luaV_execute = function(L) {
luaV_concat(L, c - b + 1);
let rb = base + b;
lobject.setobjs2s(L, ra, rb);
- L.top = ci.top; /* restore top */
+ /* restore top */
+ if (L.top < ci.top) {
+ while (L.top < ci.top)
+ L.stack[L.top++] = new lobject.TValue(CT.LUA_TNIL, null);
+ } else {
+ while (L.top > ci.top)
+ delete L.stack[--L.top];
+ }
break;
}
case OCi.OP_JMP: {
@@ -458,12 +488,26 @@ const luaV_execute = function(L) {
let b = i.B;
let nresults = i.C - 1;
- if (b !== 0)
- L.top = ra+b;
+ if (b !== 0) {
+ if (L.top < ra+b) {
+ while (L.top < ra+b)
+ L.stack[L.top++] = new lobject.TValue(CT.LUA_TNIL, null);
+ } else {
+ while (L.top > ra+b)
+ delete L.stack[--L.top];
+ }
+ }
if (ldo.luaD_precall(L, ra, nresults)) {
- if (nresults >= 0)
- L.top = ci.top;
+ if (nresults >= 0) {
+ if (L.top < ci.top) {
+ while (L.top < ci.top)
+ L.stack[L.top++] = new lobject.TValue(CT.LUA_TNIL, null);
+ } else {
+ while (L.top > ci.top)
+ delete L.stack[--L.top];
+ }
+ }
} else {
ci = L.ci;
continue newframe;
@@ -472,7 +516,16 @@ const luaV_execute = function(L) {
break;
}
case OCi.OP_TAILCALL: {
- if (i.B !== 0) L.top = ra + i.B;
+ let b = i.B;
+ if (b !== 0) {
+ if (L.top < ra+b) {
+ while (L.top < ra+b)
+ L.stack[L.top++] = new lobject.TValue(CT.LUA_TNIL, null);
+ } else {
+ while (L.top > ra+b)
+ delete L.stack[--L.top];
+ }
+ } /* else previous instruction set top */
if (ldo.luaD_precall(L, ra, LUA_MULTRET)) { // JS function
} else {
/* tail call: put called frame (n) in place of caller one (o) */
@@ -485,9 +538,15 @@ const luaV_execute = function(L) {
if (cl.p.p.length > 0) lfunc.luaF_close(L, oci.l_base);
for (let aux = 0; nfuncOff + aux < lim; aux++)
lobject.setobjs2s(L, ofuncOff + aux, nfuncOff + aux);
- oci.func = nci.func;
oci.l_base = ofuncOff + (nci.l_base - nfuncOff);
- oci.top = L.top = ofuncOff + (L.top - nfuncOff);
+ oci.top = ofuncOff + (L.top - nfuncOff);
+ if (L.top < nci.top) {
+ while (L.top < oci.top)
+ L.stack[L.top++] = new lobject.TValue(CT.LUA_TNIL, null);
+ } else {
+ while (L.top > oci.top)
+ delete L.stack[--L.top];
+ }
oci.l_code = nci.l_code;
oci.l_savedpc = nci.l_savedpc;
oci.callstatus |= lstate.CIST_TAIL;
@@ -506,10 +565,19 @@ const luaV_execute = function(L) {
if (ci.callstatus & lstate.CIST_FRESH)
return; /* external invocation: return */
-
+ /* invocation via reentry: continue execution */
ci = L.ci;
- if (b) L.top = ci.top;
-
+ if (b) {
+ if (L.top < ci.top) {
+ while (L.top < ci.top)
+ L.stack[L.top++] = new lobject.TValue(CT.LUA_TNIL, null);
+ } else {
+ while (L.top > ci.top)
+ delete L.stack[--L.top];
+ }
+ }
+ assert(ci.callstatus & lstate.CIST_LUA);
+ assert(ci.l_code[ci.l_savedpc - 1].opcode === OCi.OP_CALL);
continue newframe;
}
case OCi.OP_FORLOOP: {
@@ -521,7 +589,7 @@ const luaV_execute = function(L) {
if (0 < step ? idx <= limit : limit <= idx) {
ci.l_savedpc += i.sBx;
L.stack[ra].chgivalue(idx); /* update internal index... */
- L.stack[ra + 3] = new lobject.TValue(CT.LUA_TNUMINT, idx);
+ L.stack[ra + 3].setivalue(idx);
}
} else { /* floating loop */
let step = L.stack[ra + 2].value;
@@ -531,7 +599,7 @@ const luaV_execute = function(L) {
if (0 < step ? idx <= limit : limit <= idx) {
ci.l_savedpc += i.sBx;
L.stack[ra].chgfltvalue(idx); /* update internal index... */
- L.stack[ra + 3] = new lobject.TValue(CT.LUA_TNUMFLT, idx);
+ L.stack[ra + 3].setfltvalue(idx);
}
}
break;
@@ -550,13 +618,13 @@ const luaV_execute = function(L) {
let nlimit, nstep, ninit;
if ((nlimit = tonumber(plimit)) === false)
ldebug.luaG_runerror(L, defs.to_luastring("'for' limit must be a number", true));
- L.stack[ra + 1] = new lobject.TValue(CT.LUA_TNUMFLT, nlimit);
+ L.stack[ra + 1].setfltvalue(nlimit);
if ((nstep = tonumber(pstep)) === false)
ldebug.luaG_runerror(L, defs.to_luastring("'for' step must be a number", true));
- L.stack[ra + 2] = new lobject.TValue(CT.LUA_TNUMFLT, nstep);
+ L.stack[ra + 2].setfltvalue(nstep);
if ((ninit = tonumber(init)) === false)
ldebug.luaG_runerror(L, defs.to_luastring("'for' initial value must be a number", true));
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMFLT, ninit - nstep);
+ L.stack[ra].setfltvalue(ninit - nstep);
}
ci.l_savedpc += i.sBx;
@@ -567,15 +635,28 @@ const luaV_execute = function(L) {
lobject.setobjs2s(L, cb+2, ra+2);
lobject.setobjs2s(L, cb+1, ra+1);
lobject.setobjs2s(L, cb, ra);
- L.top = cb + 3; /* func. + 2 args (state and index) */
+ /* func. + 2 args (state and index) */
+ if (L.top < cb + 3) {
+ while (L.top < cb + 3)
+ L.stack[L.top++] = new lobject.TValue(CT.LUA_TNIL, null);
+ } else {
+ while (L.top > cb + 3)
+ delete L.stack[--L.top];
+ }
ldo.luaD_call(L, cb, i.C);
+ if (L.top < ci.top) {
+ while (L.top < ci.top)
+ L.stack[L.top++] = new lobject.TValue(CT.LUA_TNIL, null);
+ } else {
+ while (L.top > ci.top)
+ delete L.stack[--L.top];
+ }
/* go straight to OP_TFORLOOP */
- L.top = ci.top;
i = ci.l_code[ci.l_savedpc++];
ra = RA(L, base, i);
assert(i.opcode === OCi.OP_TFORLOOP);
- /* fall through */
}
+ /* fall through */
case OCi.OP_TFORLOOP: {
if (!L.stack[ra + 1].ttisnil()) { /* continue loop? */
lobject.setobjs2s(L, ra, ra + 1); /* save control variable */
@@ -601,7 +682,14 @@ const luaV_execute = function(L) {
ltable.luaH_setint(h, last--, L.stack[ra + n]);
}
- L.top = ci.top; /* correct top (in case of previous open call) */
+ /* correct top (in case of previous open call) */
+ if (L.top < ci.top) {
+ while (L.top < ci.top)
+ L.stack[L.top++] = new lobject.TValue(CT.LUA_TNIL, null);
+ } else {
+ while (L.top > ci.top)
+ delete L.stack[--L.top];
+ }
break;
}
case OCi.OP_CLOSURE: {
@@ -620,14 +708,23 @@ const luaV_execute = function(L) {
if (b < 0) {
b = n; /* get all var. arguments */
ldo.luaD_checkstack(L, n);
- L.top = ra + n;
+ if (L.top >= ra+n) {
+ while (L.top > ra+n)
+ delete L.stack[--L.top];
+ } else {
+ while (L.top < ra+n) {
+ L.stack[L.top] = new lobject.TValue();
+ L.top++;
+ }
+ }
+ assert(L.top == ra + n);
}
for (j = 0; j < b && j < n; j++)
lobject.setobjs2s(L, ra + j, base - n + j);
for (; j < b; j++) /* complete required results with nil */
- L.stack[ra + j] = new lobject.TValue(CT.LUA_TNIL, null);
+ L.stack[ra + j].setnilvalue();
break;
}
case OCi.OP_EXTRAARG: {
@@ -725,8 +822,9 @@ const luaV_equalobj = function(L, t1, t2) {
if (tm === null) /* no TM? */
return 0;
- ltm.luaT_callTM(L, tm, t1, t2, L.top, 1);
- return L.stack[L.top].l_isfalse() ? 0 : 1;
+ let tv = new lobject.TValue(); /* doesn't use the stack */
+ ltm.luaT_callTM(L, tm, t1, t2, tv, 1);
+ return tv.l_isfalse() ? 0 : 1;
};
const luaV_rawequalobj = function(t1, t2) {
@@ -890,12 +988,12 @@ const luaV_objlen = function(L, ra, rb) {
let h = rb.value;
tm = ltm.fasttm(L, h.metatable, ltm.TMS.TM_LEN);
if (tm !== null) break; /* metamethod? break switch to call it */
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, ltable.luaH_getn(h)); /* else primitive len */
+ ra.setivalue(ltable.luaH_getn(h)); /* else primitive len */
return;
}
case CT.LUA_TSHRSTR:
case CT.LUA_TLNGSTR:
- L.stack[ra] = new lobject.TValue(CT.LUA_TNUMINT, rb.vslen());
+ ra.setivalue(rb.vslen());
return;
default: {
tm = ltm.luaT_gettmbyobj(L, rb, ltm.TMS.TM_LEN);
@@ -989,32 +1087,29 @@ const luaV_concat = function(L, total) {
let n = 2; /* number of elements handled in this pass (at least 2) */
if (!(L.stack[top-2].ttisstring() || cvt2str(L.stack[top-2])) || !tostring(L, top - 1)) {
- ltm.luaT_trybinTM(L, L.stack[top-2], L.stack[top-1], top-2, ltm.TMS.TM_CONCAT);
- delete L.stack[top - 1];
+ ltm.luaT_trybinTM(L, L.stack[top-2], L.stack[top-1], L.stack[top-2], ltm.TMS.TM_CONCAT);
} else if (isemptystr(L.stack[top-1])) {
tostring(L, top - 2);
- delete L.stack[top - 1];
} else if (isemptystr(L.stack[top-2])) {
lobject.setobjs2s(L, top - 2, top - 1);
- delete L.stack[top - 1];
} else {
/* at least two non-empty string values; get as many as possible */
let toconcat = new Array(total);
toconcat[total-1] = L.stack[top-1].svalue();
- delete L.stack[top - 1];
for (n = 1; n < total; n++) {
if (!tostring(L, top - n - 1)) {
toconcat = toconcat.slice(total-n);
break;
}
toconcat[total-n-1] = L.stack[top - n - 1].svalue();
- delete L.stack[top - n - 1];
}
let ts = lstring.luaS_bless(L, Array.prototype.concat.apply([], toconcat));
lobject.setsvalue2s(L, top - n, ts);
}
total -= n - 1; /* got 'n' strings to create 1 new */
- L.top -= n - 1; /* popped 'n' strings and pushed one */
+ /* popped 'n' strings and pushed one */
+ for (; L.top > top-(n-1);)
+ delete L.stack[--L.top];
} while (total > 1); /* repeat until only 1 result left */
};
@@ -1037,14 +1132,14 @@ const gettable = function(L, t, key, ra) {
} else { /* 't' is a table */
tm = ltm.fasttm(L, t.value.metatable, ltm.TMS.TM_INDEX); /* table's metamethod */
if (tm === null) { /* no metamethod? */
- L.stack[ra] = new lobject.TValue(CT.LUA_TNIL, null); /* result is nil */
+ L.stack[ra].setnilvalue(); /* result is nil */
return;
}
}
/* else will try the metamethod */
}
if (tm.ttisfunction()) { /* is metamethod a function? */
- ltm.luaT_callTM(L, tm, t, key, ra, 1); /* call it */
+ ltm.luaT_callTM(L, tm, t, key, L.stack[ra], 1); /* call it */
return;
}
t = tm; /* else try to access 'tm[key]' */
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-11 00:14:53 +0000