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-rw-r--r--src/lvm.js248
1 files changed, 147 insertions, 101 deletions
diff --git a/src/lvm.js b/src/lvm.js
index 0c52eaf..f18ede4 100644
--- a/src/lvm.js
+++ b/src/lvm.js
@@ -66,19 +66,21 @@ class LuaVM {
let i = ci.savedpc[ci.pcOff++];
let ra = this.RA(base, i);
- var op1, op2, numberop1, numberop2, op, numberop;
switch (OC.OpCodes[i.opcode]) {
- case "OP_MOVE":
+ case "OP_MOVE": {
L.stack[ra] = L.stack[this.RB(base, i)];
break;
- case "OP_LOADK":
+ }
+ case "OP_LOADK": {
L.stack[ra] = k[i.Bx];
break;
- case "OP_LOADKX":
+ }
+ case "OP_LOADKX": {
assert(OC.OpCodes[ci.savedpc[ci.pcOff].opcode] === "OP_EXTRAARG");
L.stack[ra] = k[ci.savedpc[ci.pcOff++].Ax];
break;
- case "OP_LOADBOOL":
+ }
+ case "OP_LOADBOOL": {
L.stack[ra] = {
type: CT.LUA_TBOOLEAN,
value: i.B !== 0
@@ -88,34 +90,44 @@ class LuaVM {
ci.pcOff++; /* skip next instruction (if C) */
break;
- case "OP_LOADNIL":
+ }
+ case "OP_LOADNIL": {
for (let j = 0; j <= i.B; j++)
L.stack[ra + j] = {
type: CT.LUA_TNIL,
value: null
}
break;
- case "OP_GETUPVAL":
+ }
+ case "OP_GETUPVAL": {
break;
- case "OP_GETTABUP":
+ }
+ case "OP_GETTABUP": {
break;
- case "OP_GETTABLE":
+ }
+ case "OP_GETTABLE": {
break;
- case "OP_SETTABUP":
+ }
+ case "OP_SETTABUP": {
break;
- case "OP_SETUPVAL":
+ }
+ case "OP_SETUPVAL": {
break;
- case "OP_SETTABLE":
+ }
+ case "OP_SETTABLE": {
break;
- case "OP_NEWTABLE":
+ }
+ case "OP_NEWTABLE": {
break;
- case "OP_SELF":
+ }
+ case "OP_SELF": {
break;
- case "OP_ADD":
- op1 = k[i.B];
- op2 = k[i.C];
- numberop1 = LuaVM.tonumber(op1);
- numberop2 = LuaVM.tonumber(op2);
+ }
+ case "OP_ADD": {
+ let op1 = k[i.B];
+ let op2 = k[i.C];
+ let numberop1 = LuaVM.tonumber(op1);
+ let numberop2 = LuaVM.tonumber(op2);
if (op1.type === CT.LUA_TNUMINT && op2.type === CT.LUA_TNUMINT) {
L.stack[ra] = {
@@ -132,11 +144,12 @@ class LuaVM {
throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_SUB":
- op1 = k[i.B];
- op2 = k[i.C];
- numberop1 = LuaVM.tonumber(op1);
- numberop2 = LuaVM.tonumber(op2);
+ }
+ case "OP_SUB": {
+ let op1 = k[i.B];
+ let op2 = k[i.C];
+ let numberop1 = LuaVM.tonumber(op1);
+ let numberop2 = LuaVM.tonumber(op2);
if (op1.type === CT.LUA_TNUMINT && op2.type === CT.LUA_TNUMINT) {
L.stack[ra] = {
@@ -153,11 +166,12 @@ class LuaVM {
throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_MUL":
- op1 = k[i.B];
- op2 = k[i.C];
- numberop1 = LuaVM.tonumber(op1);
- numberop2 = LuaVM.tonumber(op2);
+ }
+ case "OP_MUL": {
+ let op1 = k[i.B];
+ let op2 = k[i.C];
+ let numberop1 = LuaVM.tonumber(op1);
+ let numberop2 = LuaVM.tonumber(op2);
if (op1.type === CT.LUA_TNUMINT && op2.type === CT.LUA_TNUMINT) {
L.stack[ra] = {
@@ -174,11 +188,12 @@ class LuaVM {
throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_MOD":
- op1 = k[i.B];
- op2 = k[i.C];
- numberop1 = LuaVM.tonumber(op1);
- numberop2 = LuaVM.tonumber(op2);
+ }
+ case "OP_MOD": {
+ let op1 = k[i.B];
+ let op2 = k[i.C];
+ let numberop1 = LuaVM.tonumber(op1);
+ let numberop2 = LuaVM.tonumber(op2);
if (op1.type === CT.LUA_TNUMINT && op2.type === CT.LUA_TNUMINT) {
L.stack[ra] = {
@@ -195,11 +210,12 @@ class LuaVM {
throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_POW":
- op1 = k[i.B];
- op2 = k[i.C];
- numberop1 = LuaVM.tonumber(op1);
- numberop2 = LuaVM.tonumber(op2);
+ }
+ case "OP_POW": {
+ let op1 = k[i.B];
+ let op2 = k[i.C];
+ let numberop1 = LuaVM.tonumber(op1);
+ let numberop2 = LuaVM.tonumber(op2);
if (numberop1 !== false && numberop2 !== false) {
L.stack[ra] = {
@@ -211,11 +227,12 @@ class LuaVM {
throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_DIV":
- op1 = k[i.B];
- op2 = k[i.C];
- numberop1 = LuaVM.tonumber(op1);
- numberop2 = LuaVM.tonumber(op2);
+ }
+ case "OP_DIV": {
+ let op1 = k[i.B];
+ let op2 = k[i.C];
+ let numberop1 = LuaVM.tonumber(op1);
+ let numberop2 = LuaVM.tonumber(op2);
if (numberop1 !== false && numberop2 !== false) {
L.stack[ra] = {
@@ -227,11 +244,12 @@ class LuaVM {
throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_IDIV":
- op1 = k[i.B];
- op2 = k[i.C];
- numberop1 = LuaVM.tonumber(op1);
- numberop2 = LuaVM.tonumber(op2);
+ }
+ case "OP_IDIV": {
+ let op1 = k[i.B];
+ let op2 = k[i.C];
+ let numberop1 = LuaVM.tonumber(op1);
+ let numberop2 = LuaVM.tonumber(op2);
if (op1.type === CT.LUA_TNUMINT && op2.type === CT.LUA_TNUMINT) {
L.stack[ra] = {
@@ -248,11 +266,12 @@ class LuaVM {
throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_BAND":
- op1 = k[i.B];
- op2 = k[i.C];
- numberop1 = LuaVM.tonumber(op1);
- numberop2 = LuaVM.tonumber(op2);
+ }
+ case "OP_BAND": {
+ let op1 = k[i.B];
+ let op2 = k[i.C];
+ let numberop1 = LuaVM.tonumber(op1);
+ let numberop2 = LuaVM.tonumber(op2);
if (op1.type === CT.LUA_TNUMINT && op2.type === CT.LUA_TNUMINT) {
L.stack[ra] = {
@@ -264,11 +283,12 @@ class LuaVM {
throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_BOR":
- op1 = k[i.B];
- op2 = k[i.C];
- numberop1 = LuaVM.tonumber(op1);
- numberop2 = LuaVM.tonumber(op2);
+ }
+ case "OP_BOR": {
+ let op1 = k[i.B];
+ let op2 = k[i.C];
+ let numberop1 = LuaVM.tonumber(op1);
+ let numberop2 = LuaVM.tonumber(op2);
if (op1.type === CT.LUA_TNUMINT && op2.type === CT.LUA_TNUMINT) {
L.stack[ra] = {
@@ -280,11 +300,12 @@ class LuaVM {
throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_BXOR":
- op1 = k[i.B];
- op2 = k[i.C];
- numberop1 = LuaVM.tonumber(op1);
- numberop2 = LuaVM.tonumber(op2);
+ }
+ case "OP_BXOR": {
+ let op1 = k[i.B];
+ let op2 = k[i.C];
+ let numberop1 = LuaVM.tonumber(op1);
+ let numberop2 = LuaVM.tonumber(op2);
if (op1.type === CT.LUA_TNUMINT && op2.type === CT.LUA_TNUMINT) {
L.stack[ra] = {
@@ -296,11 +317,12 @@ class LuaVM {
throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_SHL":
- op1 = k[i.B];
- op2 = k[i.C];
- numberop1 = LuaVM.tonumber(op1);
- numberop2 = LuaVM.tonumber(op2);
+ }
+ case "OP_SHL": {
+ let op1 = k[i.B];
+ let op2 = k[i.C];
+ let numberop1 = LuaVM.tonumber(op1);
+ let numberop2 = LuaVM.tonumber(op2);
if (op1.type === CT.LUA_TNUMINT && op2.type === CT.LUA_TNUMINT) {
L.stack[ra] = {
@@ -312,11 +334,12 @@ class LuaVM {
throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_SHR":
- op1 = k[i.B];
- op2 = k[i.C];
- numberop1 = LuaVM.tonumber(op1);
- numberop2 = LuaVM.tonumber(op2);
+ }
+ case "OP_SHR": {
+ let op1 = k[i.B];
+ let op2 = k[i.C];
+ let numberop1 = LuaVM.tonumber(op1);
+ let numberop2 = LuaVM.tonumber(op2);
if (op1.type === CT.LUA_TNUMINT && op2.type === CT.LUA_TNUMINT) {
L.stack[ra] = {
@@ -328,9 +351,10 @@ class LuaVM {
throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_UNM":
- op = L.stack[this.RB(base, i)];
- numberop = LuaVM.tonumber(op);
+ }
+ case "OP_UNM": {
+ let op = L.stack[this.RB(base, i)];
+ let numberop = LuaVM.tonumber(op);
if (op.type === CT.LUA_TNUMINT) {
L.stack[ra] = {
@@ -347,9 +371,10 @@ class LuaVM {
throw new Error(`Can't perform unary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_BNOT":
- op = L.stack[this.RB(base, i)];
- numberop = LuaVM.tonumber(op);
+ }
+ case "OP_BNOT": {
+ let op = L.stack[this.RB(base, i)];
+ let numberop = LuaVM.tonumber(op);
if (op.type === CT.LUA_TNUMINT) {
L.stack[ra] = {
@@ -361,34 +386,46 @@ class LuaVM {
throw new Error(`Can't perform unary operation on ${k[i.B].value} and ${k[i.C].value}`);
}
break;
- case "OP_NOT":
- op = L.stack[this.RB(base, i)];
+ }
+ case "OP_NOT": {
+ let op = L.stack[this.RB(base, i)];
L.stack[ra] = {
type: CT.LUA_TBOOLEAN,
value: !!((op.type === CT.LUA_TBOOLEAN && !op.value) || op.type === CT.LUA_TNIL)
}
break;
- case "OP_LEN":
+ }
+ case "OP_LEN": {
break;
- case "OP_CONCAT":
+ }
+ case "OP_CONCAT": {
break;
- case "OP_JMP":
+ }
+ case "OP_JMP": {
break;
- case "OP_EQ":
+ }
+ case "OP_EQ": {
break;
- case "OP_LT":
+ }
+ case "OP_LT": {
break;
- case "OP_LE":
+ }
+ case "OP_LE": {
break;
- case "OP_TEST":
+ }
+ case "OP_TEST": {
break;
- case "OP_TESTSET":
+ }
+ case "OP_TESTSET": {
break;
- case "OP_CALL":
+ }
+ case "OP_CALL": {
break;
- case "OP_TAILCALL":
+ }
+ case "OP_TAILCALL": {
break;
- case "OP_RETURN":
+ }
+ case "OP_RETURN": {
if (i.B >= 2) {
for (let j = 0; j <= i.B-2; j++) {
L.stack[L.ciOff + j] = L.stack[ra + j];
@@ -404,22 +441,31 @@ class LuaVM {
continue newframe;
break;
- case "OP_FORLOOP":
+ }
+ case "OP_FORLOOP": {
break;
- case "OP_FORPREP":
+ }
+ case "OP_FORPREP": {
break;
- case "OP_TFORCALL":
+ }
+ case "OP_TFORCALL": {
break;
- case "OP_TFORLOOP":
+ }
+ case "OP_TFORLOOP": {
break;
- case "OP_SETLIST":
+ }
+ case "OP_SETLIST": {
break;
- case "OP_CLOSURE":
+ }
+ case "OP_CLOSURE": {
break;
- case "OP_VARARG":
+ }
+ case "OP_VARARG": {
break;
- case "OP_EXTRAARG":
+ }
+ case "OP_EXTRAARG": {
break;
+ }
}
}
}
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-11 04:52:18 +0000