diff options
| -rw-r--r-- | src/lfunc.js | 42 | ||||
| -rw-r--r-- | src/lvm.js | 1501 | ||||
| -rw-r--r-- | tests/lvm.js | 238 |
3 files changed, 894 insertions, 887 deletions
diff --git a/src/lfunc.js b/src/lfunc.js index e9ec377..77eb853 100644 --- a/src/lfunc.js +++ b/src/lfunc.js @@ -49,7 +49,47 @@ class UpVal { } +const findupval = function(L, level) { + let pp = L.openupval; + + while(pp !== null && pp.v >= level) { + let p = pp; + + if (p.v === level) + return p; + + pp = p.u.open.next; + } + + let uv = new UpVal(); + uv.refcount = 0; + uv.u.open.next = pp; + uv.u.open.touched = true; + + pp = uv; + + uv.v = level; + + // Thread with upvalue list business ? lfunc.c:75 + + return uv; +} + +const luaF_close = function(L, level) { + while (L.openupval !== null && L.openupval.v >= level) { + let uv = L.openupval; + assert(uv.isopen()); + L.openupval = uv.u.open.next; /* remove from 'open' list */ + if (uv.refcount > 0) { + uv.value = L.stack[uv.v]; + uv.v = null; + } + } +} + module.exports = { Proto: Proto, - UpVal: UpVal + UpVal: UpVal, + findupval: findupval, + luaF_close: luaF_close };
\ No newline at end of file @@ -19,846 +19,815 @@ const CallInfo = lstate.CallInfo; const llimit = require('./llimit.js'); const ldo = require('./ldo.js'); -class LuaVM { - - constructor(L) { - this.L = L; - } +const RA = function(L, base, i) { + return base + i.A; +} - RA(base, i) { - return base + i.A; - } +const RB = function(L, base, i) { + return base + i.B; +} - RB(base, i) { - return base + i.B; - } +const RC = function(L, base, i) { + return base + i.C; +} - RC(base, i) { - return base + i.C; - } +const RKB = function(L, base, k, i) { + return OC.ISK(i.B) ? k[OC.INDEXK(i.B)] : L.stack[base + i.B]; +} - RKB(base, k, i) { - return OC.ISK(i.B) ? k[OC.INDEXK(i.B)] : this.L.stack[base + i.B]; - } +const RKC = function(L, base, k, i) { + return OC.ISK(i.C) ? k[OC.INDEXK(i.C)] : L.stack[base + i.C]; +} - RKC(base, k, i) { - return OC.ISK(i.C) ? k[OC.INDEXK(i.C)] : this.L.stack[base + i.C]; - } +const luaV_execute = function(L) { + let ci = L.ci; + ci.callstatus |= lstate.CIST_FRESH; + newframe: + for (;;) { + ci = L.ci; + var cl = ci.func; + let k = cl.p.k; + let base = ci.u.l.base + + let i = ci.u.l.savedpc[ci.pcOff++]; + let ra = RA(L, base, i); + + switch (OC.OpCodes[i.opcode]) { + case "OP_MOVE": { + L.stack[ra] = L.stack[RB(L, base, i)]; + break; + } + case "OP_LOADK": { + L.stack[ra] = k[i.Bx]; + break; + } + case "OP_LOADKX": { + assert(OC.OpCodes[ci.u.l.savedpc[ci.pcOff].opcode] === "OP_EXTRAARG"); + L.stack[ra] = k[ci.u.l.savedpc[ci.pcOff++].Ax]; + break; + } + case "OP_LOADBOOL": { + L.stack[ra] = new TValue(CT.LUA_TBOOLEAN, i.B !== 0); - execute() { - let L = this.L; - - let ci = L.ci; - ci.callstatus |= lstate.CIST_FRESH; - newframe: - for (;;) { - ci = L.ci; - var cl = ci.func; - let k = cl.p.k; - let base = ci.u.l.base - - let i = ci.u.l.savedpc[ci.pcOff++]; - let ra = this.RA(base, i); - - switch (OC.OpCodes[i.opcode]) { - case "OP_MOVE": { - L.stack[ra] = L.stack[this.RB(base, i)]; - break; - } - case "OP_LOADK": { - L.stack[ra] = k[i.Bx]; - break; - } - case "OP_LOADKX": { - assert(OC.OpCodes[ci.u.l.savedpc[ci.pcOff].opcode] === "OP_EXTRAARG"); - L.stack[ra] = k[ci.u.l.savedpc[ci.pcOff++].Ax]; - break; - } - case "OP_LOADBOOL": { - L.stack[ra] = new TValue(CT.LUA_TBOOLEAN, i.B !== 0); + if (i.C !== 0) + ci.pcOff++; /* skip next instruction (if C) */ - if (i.C !== 0) - ci.pcOff++; /* skip next instruction (if C) */ + break; + } + case "OP_LOADNIL": { + for (let j = 0; j <= i.B; j++) + L.stack[ra + j] = ldo.nil; + break; + } + case "OP_GETUPVAL": { + L.stack[ra] = cl.upvals[i.B].val(L); + break; + } + case "OP_SETUPVAL": { + cl.upvals[i.B].setval(L, ra); + break; + } + case "OP_GETTABUP": { + let table = cl.upvals[i.B].val(L); + let key = RKC(L, base, k, i); + + // if (!table.ttistable() || !table.metatable.__index(table, key)) { + // // __index + // } else { + L.stack[ra] = table.metatable.__index(table, key); + // } + break; + } + case "OP_SETTABUP": { + let table = cl.upvals[i.A].val(L); + let key = RKB(L, base, k, i); + let v = RKC(L, base, k, i); + + // if (!table.ttistable() || !table.metatable.__index(table, key)) { + // // __index + // } else { + table.metatable.__newindex(table, key, v); + // } + + break; + } + case "OP_GETTABLE": { + let table = RKB(L, base, k, i); + let key = RKC(L, base, k, i); + + // if (!table.ttistable() || !table.metatable.__index(table, key)) { + // // __index + // } else { + L.stack[ra] = table.metatable.__index(table, key); + // } + break; + } + case "OP_SETTABLE": { + let table = L.stack[ra]; + let key = RKB(L, base, k, i); + let v = RKC(L, base, k, i); + + // if (!table.ttistable() || !table.metatable.__index(table, key)) { + // // __index + // } else { + table.metatable.__newindex(table, key, v); + // } + + break; + } + case "OP_NEWTABLE": { + L.stack[ra] = new Table(); + break; + } + case "OP_SELF": { + let table = L.stack[RB(L, base, i)]; + let key = RKC(L, base, k, i); - break; - } - case "OP_LOADNIL": { - for (let j = 0; j <= i.B; j++) - L.stack[ra + j] = ldo.nil; - break; - } - case "OP_GETUPVAL": { - L.stack[ra] = cl.upvals[i.B].val(L); - break; - } - case "OP_SETUPVAL": { - cl.upvals[i.B].setval(L, ra); - break; - } - case "OP_GETTABUP": { - let table = cl.upvals[i.B].val(L); - let key = this.RKC(base, k, i); - - // if (!table.ttistable() || !table.metatable.__index(table, key)) { - // // __index - // } else { - L.stack[ra] = table.metatable.__index(table, key); - // } - break; - } - case "OP_SETTABUP": { - let table = cl.upvals[i.A].val(L); - let key = this.RKB(base, k, i); - let v = this.RKC(base, k, i); - - // if (!table.ttistable() || !table.metatable.__index(table, key)) { - // // __index - // } else { - table.metatable.__newindex(table, key, v); - // } - - break; - } - case "OP_GETTABLE": { - let table = this.RKB(base, k, i); - let key = this.RKC(base, k, i); - - // if (!table.ttistable() || !table.metatable.__index(table, key)) { - // // __index - // } else { - L.stack[ra] = table.metatable.__index(table, key); - // } - break; - } - case "OP_SETTABLE": { - let table = L.stack[ra]; - let key = this.RKB(base, k, i); - let v = this.RKC(base, k, i); - - // if (!table.ttistable() || !table.metatable.__index(table, key)) { - // // __index - // } else { - table.metatable.__newindex(table, key, v); - // } - - break; - } - case "OP_NEWTABLE": { - L.stack[ra] = new Table(); - break; - } - case "OP_SELF": { - let table = L.stack[this.RB(base, i)]; - let key = this.RKC(base, k, i); + L.stack[ra + 1] = table; - L.stack[ra + 1] = table; + // if (!table.ttistable() || !table.metatable.__index(table, key)) { + // // __index + // } else { + L.stack[ra] = table.metatable.__index(table, key); + // } - // if (!table.ttistable() || !table.metatable.__index(table, key)) { - // // __index - // } else { - L.stack[ra] = table.metatable.__index(table, key); - // } + break; + } + case "OP_ADD": { + let op1 = RKB(L, base, k, i); + let op2 = RKC(L, base, k, i); + let numberop1 = tonumber(op1); + let numberop2 = tonumber(op2); + + if (op1.ttisinteger() && op2.ttisinteger()) { + L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value + op2.value)|0); + } else if (numberop1 !== false && numberop2 !== false) { + L.stack[ra] = new TValue(CT.LUA_TNUMFLT, op1.value + op2.value); + } else { + // Metamethod + throw new Error(`Can't perform binary operation on ${op1.value} and ${op2.value}`); + } + break; + } + case "OP_SUB": { + let op1 = RKB(L, base, k, i); + let op2 = RKC(L, base, k, i); + let numberop1 = tonumber(op1); + let numberop2 = tonumber(op2); + + if (op1.ttisinteger() && op2.ttisinteger()) { + L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value - op2.value)|0); + } else if (numberop1 !== false && numberop2 !== false) { + L.stack[ra] = new TValue(CT.LUA_TNUMFLT, op1.value - op2.value); + } else { + // Metamethod + throw new Error(`Can't perform binary operation on ${op1.value} and ${k[i.C].value}`); + } + break; + } + case "OP_MUL": { + let op1 = RKB(L, base, k, i); + let op2 = RKC(L, base, k, i); + let numberop1 = tonumber(op1); + let numberop2 = tonumber(op2); + + if (op1.ttisinteger() && op2.ttisinteger()) { + L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value * op2.value)|0); + } else if (numberop1 !== false && numberop2 !== false) { + L.stack[ra] = new TValue(CT.LUA_TNUMFLT, k[i.B].value * op2.value); + } else { + // Metamethod + throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); + } + break; + } + case "OP_MOD": { + let op1 = RKB(L, base, k, i); + let op2 = RKC(L, base, k, i); + let numberop1 = tonumber(op1); + let numberop2 = tonumber(op2); + + if (op1.ttisinteger() && op2.ttisinteger()) { + L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value % op2.value)|0); + } else if (numberop1 !== false && numberop2 !== false) { + L.stack[ra] = new TValue(CT.LUA_TNUMFLT, k[i.B].value % op2.value); + } else { + // Metamethod + throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); + } + break; + } + case "OP_POW": { + let op1 = RKB(L, base, k, i); + let op2 = RKC(L, base, k, i); + let numberop1 = tonumber(op1); + let numberop2 = tonumber(op2); + + if (numberop1 !== false && numberop2 !== false) { + L.stack[ra] = new TValue(CT.LUA_TNUMFLT, Math.pow(op1.value, op2.value)); + } else { + // Metamethod + throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); + } + break; + } + case "OP_DIV": { + let op1 = RKB(L, base, k, i); + let op2 = RKC(L, base, k, i); + let numberop1 = tonumber(op1); + let numberop2 = tonumber(op2); + + if (numberop1 !== false && numberop2 !== false) { + L.stack[ra] = new TValue(CT.LUA_TNUMFLT, k[i.B].value / op2.value); + } else { + // Metamethod + throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); + } + break; + } + case "OP_IDIV": { + let op1 = RKB(L, base, k, i); + let op2 = RKC(L, base, k, i); + let numberop1 = tonumber(op1); + let numberop2 = tonumber(op2); + + if (op1.ttisinteger() && op2.ttisinteger()) { + L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value / op2.value)|0); + } else if (numberop1 !== false && numberop2 !== false) { + L.stack[ra] = new TValue(CT.LUA_TNUMFLT, (op1.value / op2.value)|0); + } else { + // Metamethod + throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); + } + break; + } + case "OP_BAND": { + let op1 = RKB(L, base, k, i); + let op2 = RKC(L, base, k, i); + let numberop1 = tonumber(op1); + let numberop2 = tonumber(op2); + + if (op1.ttisinteger() && op2.ttisinteger()) { + L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value & op2.value)|0); + } else { + // Metamethod + throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); + } + break; + } + case "OP_BOR": { + let op1 = RKB(L, base, k, i); + let op2 = RKC(L, base, k, i); + let numberop1 = tonumber(op1); + let numberop2 = tonumber(op2); + + if (op1.ttisinteger() && op2.ttisinteger()) { + L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value | op2.value)|0); + } else { + // Metamethod + throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); + } + break; + } + case "OP_BXOR": { + let op1 = RKB(L, base, k, i); + let op2 = RKC(L, base, k, i); + let numberop1 = tonumber(op1); + let numberop2 = tonumber(op2); + + if (op1.ttisinteger() && op2.ttisinteger()) { + L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value ^ op2.value)|0); + } else { + // Metamethod + throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); + } + break; + } + case "OP_SHL": { + let op1 = RKB(L, base, k, i); + let op2 = RKC(L, base, k, i); + let numberop1 = tonumber(op1); + let numberop2 = tonumber(op2); + + if (op1.ttisinteger() && op2.ttisinteger()) { + L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value << op2.value)|0); + } else { + // Metamethod + throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); + } + break; + } + case "OP_SHR": { + let op1 = RKB(L, base, k, i); + let op2 = RKC(L, base, k, i); + let numberop1 = tonumber(op1); + let numberop2 = tonumber(op2); + + if (op1.ttisinteger() && op2.ttisinteger()) { + L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value >> op2.value)|0); + } else { + // Metamethod + throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); + } + break; + } + case "OP_UNM": { + let op = L.stack[RB(L, base, i)]; + let numberop = tonumber(op); + + if (op.ttisinteger()) { + L.stack[ra] = new TValue(CT.LUA_TNUMINT, -op.value); + } else if (numberop !== false) { + L.stack[ra] = new TValue(CT.LUA_TNUMFLT, -op.value); + } else { + // Metamethod + throw new Error(`Can't perform unary operation on ${op.value}`); + } + break; + } + case "OP_BNOT": { + let op = L.stack[RB(L, base, i)]; + let numberop = tonumber(op); - break; - } - case "OP_ADD": { - let op1 = this.RKB(base, k, i); - let op2 = this.RKC(base, k, i); - let numberop1 = LuaVM.tonumber(op1); - let numberop2 = LuaVM.tonumber(op2); - - if (op1.ttisinteger() && op2.ttisinteger()) { - L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value + op2.value)|0); - } else if (numberop1 !== false && numberop2 !== false) { - L.stack[ra] = new TValue(CT.LUA_TNUMFLT, op1.value + op2.value); - } else { - // Metamethod - throw new Error(`Can't perform binary operation on ${op1.value} and ${op2.value}`); - } - break; - } - case "OP_SUB": { - let op1 = this.RKB(base, k, i); - let op2 = this.RKC(base, k, i); - let numberop1 = LuaVM.tonumber(op1); - let numberop2 = LuaVM.tonumber(op2); - - if (op1.ttisinteger() && op2.ttisinteger()) { - L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value - op2.value)|0); - } else if (numberop1 !== false && numberop2 !== false) { - L.stack[ra] = new TValue(CT.LUA_TNUMFLT, op1.value - op2.value); - } else { - // Metamethod - throw new Error(`Can't perform binary operation on ${op1.value} and ${k[i.C].value}`); - } - break; - } - case "OP_MUL": { - let op1 = this.RKB(base, k, i); - let op2 = this.RKC(base, k, i); - let numberop1 = LuaVM.tonumber(op1); - let numberop2 = LuaVM.tonumber(op2); - - if (op1.ttisinteger() && op2.ttisinteger()) { - L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value * op2.value)|0); - } else if (numberop1 !== false && numberop2 !== false) { - L.stack[ra] = new TValue(CT.LUA_TNUMFLT, k[i.B].value * op2.value); - } else { - // Metamethod - throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); - } - break; - } - case "OP_MOD": { - let op1 = this.RKB(base, k, i); - let op2 = this.RKC(base, k, i); - let numberop1 = LuaVM.tonumber(op1); - let numberop2 = LuaVM.tonumber(op2); - - if (op1.ttisinteger() && op2.ttisinteger()) { - L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value % op2.value)|0); - } else if (numberop1 !== false && numberop2 !== false) { - L.stack[ra] = new TValue(CT.LUA_TNUMFLT, k[i.B].value % op2.value); - } else { - // Metamethod - throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); - } - break; - } - case "OP_POW": { - let op1 = this.RKB(base, k, i); - let op2 = this.RKC(base, k, i); - let numberop1 = LuaVM.tonumber(op1); - let numberop2 = LuaVM.tonumber(op2); - - if (numberop1 !== false && numberop2 !== false) { - L.stack[ra] = new TValue(CT.LUA_TNUMFLT, Math.pow(op1.value, op2.value)); - } else { - // Metamethod - throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); - } - break; - } - case "OP_DIV": { - let op1 = this.RKB(base, k, i); - let op2 = this.RKC(base, k, i); - let numberop1 = LuaVM.tonumber(op1); - let numberop2 = LuaVM.tonumber(op2); - - if (numberop1 !== false && numberop2 !== false) { - L.stack[ra] = new TValue(CT.LUA_TNUMFLT, k[i.B].value / op2.value); - } else { - // Metamethod - throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); - } - break; - } - case "OP_IDIV": { - let op1 = this.RKB(base, k, i); - let op2 = this.RKC(base, k, i); - let numberop1 = LuaVM.tonumber(op1); - let numberop2 = LuaVM.tonumber(op2); - - if (op1.ttisinteger() && op2.ttisinteger()) { - L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value / op2.value)|0); - } else if (numberop1 !== false && numberop2 !== false) { - L.stack[ra] = new TValue(CT.LUA_TNUMFLT, (op1.value / op2.value)|0); - } else { - // Metamethod - throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); - } - break; - } - case "OP_BAND": { - let op1 = this.RKB(base, k, i); - let op2 = this.RKC(base, k, i); - let numberop1 = LuaVM.tonumber(op1); - let numberop2 = LuaVM.tonumber(op2); - - if (op1.ttisinteger() && op2.ttisinteger()) { - L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value & op2.value)|0); - } else { - // Metamethod - throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); - } - break; - } - case "OP_BOR": { - let op1 = this.RKB(base, k, i); - let op2 = this.RKC(base, k, i); - let numberop1 = LuaVM.tonumber(op1); - let numberop2 = LuaVM.tonumber(op2); - - if (op1.ttisinteger() && op2.ttisinteger()) { - L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value | op2.value)|0); - } else { - // Metamethod - throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); - } - break; - } - case "OP_BXOR": { - let op1 = this.RKB(base, k, i); - let op2 = this.RKC(base, k, i); - let numberop1 = LuaVM.tonumber(op1); - let numberop2 = LuaVM.tonumber(op2); - - if (op1.ttisinteger() && op2.ttisinteger()) { - L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value ^ op2.value)|0); - } else { - // Metamethod - throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); - } - break; - } - case "OP_SHL": { - let op1 = this.RKB(base, k, i); - let op2 = this.RKC(base, k, i); - let numberop1 = LuaVM.tonumber(op1); - let numberop2 = LuaVM.tonumber(op2); - - if (op1.ttisinteger() && op2.ttisinteger()) { - L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value << op2.value)|0); - } else { - // Metamethod - throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); - } - break; - } - case "OP_SHR": { - let op1 = this.RKB(base, k, i); - let op2 = this.RKC(base, k, i); - let numberop1 = LuaVM.tonumber(op1); - let numberop2 = LuaVM.tonumber(op2); - - if (op1.ttisinteger() && op2.ttisinteger()) { - L.stack[ra] = new TValue(CT.LUA_TNUMINT, (op1.value >> op2.value)|0); - } else { - // Metamethod - throw new Error(`Can't perform binary operation on ${k[i.B].value} and ${k[i.C].value}`); - } - break; - } - case "OP_UNM": { - let op = L.stack[this.RB(base, i)]; - let numberop = LuaVM.tonumber(op); - - if (op.ttisinteger()) { - L.stack[ra] = new TValue(CT.LUA_TNUMINT, -op.value); - } else if (numberop !== false) { - L.stack[ra] = new TValue(CT.LUA_TNUMFLT, -op.value); - } else { - // Metamethod - throw new Error(`Can't perform unary operation on ${op.value}`); - } - break; - } - case "OP_BNOT": { - let op = L.stack[this.RB(base, i)]; - let numberop = LuaVM.tonumber(op); - - if (op.ttisinteger()) { - L.stack[ra] = new TValue(CT.LUA_TNUMINT, ~op.value); - } else { - // Metamethod - throw new Error(`Can't perform unary operation on ${op.value}`); - } - break; - } - case "OP_NOT": { - let op = L.stack[this.RB(base, i)]; - L.stack[ra] = new TValue(CT.LUA_TBOOLEAN, LuaVM.l_isfalse(op)); - break; - } - case "OP_LEN": { - break; - } - case "OP_CONCAT": { - break; + if (op.ttisinteger()) { + L.stack[ra] = new TValue(CT.LUA_TNUMINT, ~op.value); + } else { + // Metamethod + throw new Error(`Can't perform unary operation on ${op.value}`); } - case "OP_JMP": { - this.dojump(ci, i, 0); - break; - } - case "OP_EQ": { - if (LuaVM.luaV_equalobj(this.RKB(base, k, i), this.RKC(base, k, i)) !== i.A) - ci.pcOff++; - else - this.donextjump(ci); - base = ci.u.l.base; - break; - } - case "OP_LT": { - if (LuaVM.luaV_lessthan(this.RKB(base, k, i), this.RKC(base, k, i)) !== i.A) - ci.pcOff++; - else - this.donextjump(ci); - base = ci.u.l.base; - break; - } - case "OP_LE": { - if (LuaVM.luaV_lessequal(this.RKB(base, k, i), this.RKC(base, k, i)) !== i.A) - ci.pcOff++; - else - this.donextjump(ci); - base = ci.u.l.base; - break; - } - case "OP_TEST": { - if (i.C ? LuaVM.l_isfalse(L.stack[ra]) : !LuaVM.l_isfalse(L.stack[ra])) - ci.pcOff++; - else - this.donextjump(ci); - break; - } - case "OP_TESTSET": { - let rb = L.stack[this.RB(base, i)]; - if (i.C ? LuaVM.l_isfalse(rb) : !LuaVM.l_isfalse(rb)) - ci.pcOff++; - else { - L.stack[ra] = rb; - this.donextjump(ci); - } - break; - } - case "OP_CALL": { - let b = i.B; - let nresults = i.C - 1; - - if (b !== 0) - L.top = ra+b; - - if (ldo.precall(L, ra, L.stack[ra], nresults)) { - if (nresults >= 0) - L.top = ci.top; - base = ci.u.l.base; - } else { - ci = L.ci; - continue newframe; - } + break; + } + case "OP_NOT": { + let op = L.stack[RB(L, base, i)]; + L.stack[ra] = new TValue(CT.LUA_TBOOLEAN, l_isfalse(op)); + break; + } + case "OP_LEN": { + break; + } + case "OP_CONCAT": { + break; + } + case "OP_JMP": { + dojump(L, ci, i, 0); + break; + } + case "OP_EQ": { + if (luaV_equalobj(RKB(L, base, k, i), RKC(L, base, k, i)) !== i.A) + ci.pcOff++; + else + donextjump(L, ci); + base = ci.u.l.base; + break; + } + case "OP_LT": { + if (luaV_lessthan(RKB(L, base, k, i), RKC(L, base, k, i)) !== i.A) + ci.pcOff++; + else + donextjump(L, ci); + base = ci.u.l.base; + break; + } + case "OP_LE": { + if (luaV_lessequal(RKB(L, base, k, i), RKC(L, base, k, i)) !== i.A) + ci.pcOff++; + else + donextjump(L, ci); + base = ci.u.l.base; + break; + } + case "OP_TEST": { + if (i.C ? l_isfalse(L.stack[ra]) : !l_isfalse(L.stack[ra])) + ci.pcOff++; + else + donextjump(L, ci); + break; + } + case "OP_TESTSET": { + let rb = L.stack[RB(L, base, i)]; + if (i.C ? l_isfalse(rb) : !l_isfalse(rb)) + ci.pcOff++; + else { + L.stack[ra] = rb; + donextjump(L, ci); + } + break; + } + case "OP_CALL": { + let b = i.B; + let nresults = i.C - 1; - break; - } - case "OP_TAILCALL": { - if (i.B !== 0) L.top = ra + i.B; - if (ldo.precall(L, ra, L.stack[ra], LUA_MULTRET)) { // JS function - base = ci.u.l.base; - } else { - /* tail call: put called frame (n) in place of caller one (o) */ - let nci = L.ci; - let oci = nci.previous; - let nfunc = nci.func; - let nfuncOff = nci.funcOff; - let ofunc = oci.func; - let ofuncOff = oci.funcOff; - let lim = nci.u.l.base + nfunc.p.numparams; - if (cl.p.p.length > 0) this.closeupvals(oci.u.l.base); - for (let aux = 0; nfuncOff + aux < lim; aux++) - L.stack[ofuncOff + aux] = L.stack[nfuncOff + aux]; - oci.func = nci.func; - oci.u.l.base = ofuncOff + (nci.u.l.base - nfuncOff); - L.top = ofuncOff + (L.top - nfuncOff); - oci.top = L.top; - oci.u.l.savedpc = nci.u.l.savedpc; - oci.pcOff = nci.pcOff; - oci.callstatus |= lstate.CIST_TAIL; - L.ci = oci; - ci = L.ci; - L.ciOff--; - - assert(L.top === oci.u.l.base + L.stack[ofuncOff].p.maxstacksize); - - continue newframe; - } - break; + if (b !== 0) + L.top = ra+b; + + if (ldo.precall(L, ra, L.stack[ra], nresults)) { + if (nresults >= 0) + L.top = ci.top; + base = ci.u.l.base; + } else { + ci = L.ci; + continue newframe; } - case "OP_RETURN": { - if (cl.p.p.length > 0) this.closeupvals(base); - let b = ldo.postcall(L, ci, ra, (i.B !== 0 ? i.B - 1 : L.top - ra)); - if (ci.callstatus & lstate.CIST_FRESH) - return; /* external invocation: return */ - + break; + } + case "OP_TAILCALL": { + if (i.B !== 0) L.top = ra + i.B; + if (ldo.precall(L, ra, L.stack[ra], LUA_MULTRET)) { // JS function + base = ci.u.l.base; + } else { + /* tail call: put called frame (n) in place of caller one (o) */ + let nci = L.ci; + let oci = nci.previous; + let nfunc = nci.func; + let nfuncOff = nci.funcOff; + let ofunc = oci.func; + let ofuncOff = oci.funcOff; + let lim = nci.u.l.base + nfunc.p.numparams; + if (cl.p.p.length > 0) lfunc.luaF_close(L, oci.u.l.base); + for (let aux = 0; nfuncOff + aux < lim; aux++) + L.stack[ofuncOff + aux] = L.stack[nfuncOff + aux]; + oci.func = nci.func; + oci.u.l.base = ofuncOff + (nci.u.l.base - nfuncOff); + L.top = ofuncOff + (L.top - nfuncOff); + oci.top = L.top; + oci.u.l.savedpc = nci.u.l.savedpc; + oci.pcOff = nci.pcOff; + oci.callstatus |= lstate.CIST_TAIL; + L.ci = oci; ci = L.ci; - if (b) L.top = ci.top; + L.ciOff--; + + assert(L.top === oci.u.l.base + L.stack[ofuncOff].p.maxstacksize); continue newframe; - break; } - case "OP_FORLOOP": { - if (L.stack[ra].ttisinteger()) { /* integer loop? */ - let step = L.stack[ra + 2].value; - let idx = L.stack[ra].value + step; - let limit = L.stack[ra + 1].value; - - if (0 < step ? idx <= limit : limit <= idx) { - ci.pcOff += i.sBx; - L.stack[ra].value = idx; - L.stack[ra + 3] = new TValue(CT.LUA_TNUMINT, idx); // TODO: if tvalue already there, just update it - } - } else { /* floating loop */ - let step = L.stack[ra + 2].value; - let idx = L.stack[ra].value + step; - let limit = L.stack[ra + 1].value; - - // TODO: luai_numlt, luai_numle - if (0 < step ? idx <= limit : limit <= idx) { - ci.pcOff += i.sBx; - L.stack[ra].value = idx; - L.stack[ra + 3] = new TValue(CT.LUA_TNUMFLT, idx); // TODO: if tvalue already there, just update it - } - } - break; - } - case "OP_FORPREP": { - let init = L.stack[ra]; - let plimit = L.stack[ra + 1]; - let pstep = L.stack[ra + 2]; - let forlimit = LuaVM.forlimit(plimit, pstep.value); - - if (init.ttisinteger() && pstep.ttisinteger() && forlimit.casted) { /* all values are integer */ - let initv = forlimit.stopnow ? 0 : init.value; - plimit.value = forlimit.ilimit; - init.value = initv - pstep.value; - } else { /* try making all values floats */ - let ninit = LuaVM.tonumber(init); - let nlimit = LuaVM.tonumber(plimit); - let nstep = LuaVM.tonumber(pstep); - - if (nlimit === false) - throw new Error("'for' limit must be a number"); - - plimit.type = CT.LUA_TNUMFLT; - plimit.value = nlimit.value; - - if (nstep === false) - throw new Error("'for' step must be a number"); - - pstep.type = CT.LUA_TNUMFLT; - pstep.value = nstep.value; - - if (ninit === false) - throw new Error("'for' initial value must be a number"); - - init.type = CT.LUA_TNUMFLT; - init.value = ninit.value - nstep.value; + break; + } + case "OP_RETURN": { + if (cl.p.p.length > 0) lfunc.luaF_close(L, base); + let b = ldo.postcall(L, ci, ra, (i.B !== 0 ? i.B - 1 : L.top - ra)); + + if (ci.callstatus & lstate.CIST_FRESH) + return; /* external invocation: return */ + + ci = L.ci; + if (b) L.top = ci.top; + + continue newframe; + break; + } + case "OP_FORLOOP": { + if (L.stack[ra].ttisinteger()) { /* integer loop? */ + let step = L.stack[ra + 2].value; + let idx = L.stack[ra].value + step; + let limit = L.stack[ra + 1].value; + + if (0 < step ? idx <= limit : limit <= idx) { + ci.pcOff += i.sBx; + L.stack[ra].value = idx; + L.stack[ra + 3] = new TValue(CT.LUA_TNUMINT, idx); // TODO: if tvalue already there, just update it } - - ci.pcOff += i.sBx; - break; - } - case "OP_TFORCALL": { - break; - } - case "OP_TFORLOOP": { - if (!L.stack[ra + 1].ttisnil()) { /* continue loop? */ - L.stack[ra] = L.stack[ra + 1]; /* save control variable */ - ci.cpOff += i.sBx; /* jump back */ + } else { /* floating loop */ + let step = L.stack[ra + 2].value; + let idx = L.stack[ra].value + step; + let limit = L.stack[ra + 1].value; + + // TODO: luai_numlt, luai_numle + if (0 < step ? idx <= limit : limit <= idx) { + ci.pcOff += i.sBx; + L.stack[ra].value = idx; + L.stack[ra + 3] = new TValue(CT.LUA_TNUMFLT, idx); // TODO: if tvalue already there, just update it } - break; } - case "OP_SETLIST": { - let n = i.B; - let c = i.C; + break; + } + case "OP_FORPREP": { + let init = L.stack[ra]; + let plimit = L.stack[ra + 1]; + let pstep = L.stack[ra + 2]; + let forlim = forlimit(plimit, pstep.value); - if (n === 0) n = L.top - ra - 1; + if (init.ttisinteger() && pstep.ttisinteger() && forlim.casted) { /* all values are integer */ + let initv = forlim.stopnow ? 0 : init.value; + plimit.value = forlim.ilimit; + init.value = initv - pstep.value; + } else { /* try making all values floats */ + let ninit = tonumber(init); + let nlimit = tonumber(plimit); + let nstep = tonumber(pstep); - if (c === 0) { - assert(OC.OpCodes[ci.u.l.savedpc[ci.pcOff].opcode] === "OP_EXTRAARG"); - c = ci.u.l.savedpc[ci.pcOff++].Ax; - } + if (nlimit === false) + throw new Error("'for' limit must be a number"); - let table = L.stack[ra].value; - let last = ((c - 1) * OC.LFIELDS_PER_FLUSH) + n; + plimit.type = CT.LUA_TNUMFLT; + plimit.value = nlimit.value; - for (; n > 0; n--) { - table.array[last--] = L.stack[ra + n]; - } + if (nstep === false) + throw new Error("'for' step must be a number"); - L.top = ci.top; /* correct top (in case of previous open call) */ - break; - } - case "OP_CLOSURE": { - let p = cl.p.p[i.Bx]; - let nup = p.upvalues.length; - let uv = p.upvalues; - let ncl = new LClosure(nup); - ncl.p = p; - - L.stack[ra] = ncl; - - for (let i = 0; i < nup; i++) { - if (uv[i].instack) - ncl.upvals[i] = this.findupval(base + uv[i].idx); - else - ncl.upvals[i] = cl.upvals[uv[i].idx]; - ncl.upvals[i].refcount++; - } - break; - } - case "OP_VARARG": { - let b = i.B - 1; - let n = base - ci.funcOff - cl.p.numparams - 1; - let j; - - if (n < 0) /* less arguments than parameters? */ - n = 0; /* no vararg arguments */ - - if (b < 0) { - b = n; /* get all var. arguments */ - base = ci.u.l.base; - ra = this.RA(base, i); /* previous call may change the stack */ + pstep.type = CT.LUA_TNUMFLT; + pstep.value = nstep.value; - L.top = ra + n; - } - - for (j = 0; j < b && j < n; j++) - L.stack[ra + j] = L.stack[base - n + j]; + if (ninit === false) + throw new Error("'for' initial value must be a number"); - for (; j < b; j++) /* complete required results with nil */ - L.stack[ra + j] = ldo.nil; - break; + init.type = CT.LUA_TNUMFLT; + init.value = ninit.value - nstep.value; } - case "OP_EXTRAARG": { - break; + + ci.pcOff += i.sBx; + break; + } + case "OP_TFORCALL": { + break; + } + case "OP_TFORLOOP": { + if (!L.stack[ra + 1].ttisnil()) { /* continue loop? */ + L.stack[ra] = L.stack[ra + 1]; /* save control variable */ + ci.cpOff += i.sBx; /* jump back */ } + break; } - } - } + case "OP_SETLIST": { + let n = i.B; + let c = i.C; + + if (n === 0) n = L.top - ra - 1; - findupval(level) { - let L = this.L; - let pp = L.openupval; - - while(pp !== null && pp.v >= level) { - let p = pp; + if (c === 0) { + assert(OC.OpCodes[ci.u.l.savedpc[ci.pcOff].opcode] === "OP_EXTRAARG"); + c = ci.u.l.savedpc[ci.pcOff++].Ax; + } - if (p.v === level) - return p; + let table = L.stack[ra].value; + let last = ((c - 1) * OC.LFIELDS_PER_FLUSH) + n; - pp = p.u.open.next; - } + for (; n > 0; n--) { + table.array[last--] = L.stack[ra + n]; + } - let uv = new UpVal(); - uv.refcount = 0; - uv.u.open.next = pp; - uv.u.open.touched = true; + L.top = ci.top; /* correct top (in case of previous open call) */ + break; + } + case "OP_CLOSURE": { + let p = cl.p.p[i.Bx]; + let nup = p.upvalues.length; + let uv = p.upvalues; + let ncl = new LClosure(nup); + ncl.p = p; + + L.stack[ra] = ncl; + + for (let i = 0; i < nup; i++) { + if (uv[i].instack) + ncl.upvals[i] = lfunc.findupval(L, base + uv[i].idx); + else + ncl.upvals[i] = cl.upvals[uv[i].idx]; + ncl.upvals[i].refcount++; + } + break; + } + case "OP_VARARG": { + let b = i.B - 1; + let n = base - ci.funcOff - cl.p.numparams - 1; + let j; - pp = uv; + if (n < 0) /* less arguments than parameters? */ + n = 0; /* no vararg arguments */ - uv.v = level; + if (b < 0) { + b = n; /* get all var. arguments */ + base = ci.u.l.base; + ra = RA(L, base, i); /* previous call may change the stack */ - // Thread with upvalue list business ? lfunc.c:75 + L.top = ra + n; + } - return uv; - } + for (j = 0; j < b && j < n; j++) + L.stack[ra + j] = L.stack[base - n + j]; - closeupvals(level) { - let L = this.L; - while (L.openupval !== null && L.openupval.v >= level) { - let uv = L.openupval; - assert(uv.isopen()); - L.openupval = uv.u.open.next; /* remove from 'open' list */ - if (uv.refcount > 0) { - uv.value = L.stack[uv.v]; - uv.v = null; + for (; j < b; j++) /* complete required results with nil */ + L.stack[ra + j] = ldo.nil; + break; + } + case "OP_EXTRAARG": { + break; } } } +} - dojump(ci, i, e) { - let a = i.A; - if (a != 0) closeupvals(ci.u.l.base + a - 1); - ci.pcOff += i.sBx + e; - } +const dojump = function(L, ci, i, e) { + let a = i.A; + if (a != 0) lfunc.luaF_close(L, ci.u.l.base + a - 1); + ci.pcOff += i.sBx + e; +} - donextjump(ci) { - this.dojump(ci, ci.u.l.savedpc[ci.pcOff], 1); - } +const donextjump = function(L, ci) { + dojump(L, ci, ci.u.l.savedpc[ci.pcOff], 1); +} - static luaV_lessequal(l, r) { - if (l.ttisnumber() && r.ttisnumber()) - return LuaVM.LEnum(l, r); - else if (l.ttisstring() && r.ttisstring()) - return LuaVM.l_strcmp(l, r) <= 0; - // TODO: metatable - // else if (l.metatable.__le || r.metatable.__le) { - // let res = l.metatable.__le ? l.metatable.__le(l, r) : r.metatable.__le(l, r); - // if (res >= 0) - // return res; - // } else { - // L.ci.callstatus |= lstate.CIST_LEQ; - // let res = l.metatable.__lt ? l.metatable.__lt(r, l) : r.metatable.__lt(r, l); - // L.ci.callstatus ^= lstate.CIST_LEQ; - // if (res < 0) - // throw new Error("attempt to compare ..."); - // return !res; - // } - } +const luaV_lessequal = function(l, r) { + if (l.ttisnumber() && r.ttisnumber()) + return LEnum(l, r); + else if (l.ttisstring() && r.ttisstring()) + return l_strcmp(l, r) <= 0; + // TODO: metatable + // else if (l.metatable.__le || r.metatable.__le) { + // let res = l.metatable.__le ? l.metatable.__le(l, r) : r.metatable.__le(l, r); + // if (res >= 0) + // return res; + // } else { + // L.ci.callstatus |= lstate.CIST_LEQ; + // let res = l.metatable.__lt ? l.metatable.__lt(r, l) : r.metatable.__lt(r, l); + // L.ci.callstatus ^= lstate.CIST_LEQ; + // if (res < 0) + // throw new Error("attempt to compare ..."); + // return !res; + // } +} - static luaV_lessthan(l, r) { - if (l.ttisnumber() && r.ttisnumber()) - return LuaVM.LTnum(l, r); - else if (l.ttisstring() && r.ttisstring()) - return LuaVM.l_strcmp(l, r) < 0; - // TODO: metatable - // else if (l.metatable.__lt || r.metatable.__lt) { - // let res = l.metatable.__lt ? l.metatable.__lt(l, r) : r.metatable.__lt(l, r); - // if (res < 0) - // throw new Error("attempt to compare ...") - // return res; - // } - } +const luaV_lessthan = function(l, r) { + if (l.ttisnumber() && r.ttisnumber()) + return LTnum(l, r); + else if (l.ttisstring() && r.ttisstring()) + return l_strcmp(l, r) < 0; + // TODO: metatable + // else if (l.metatable.__lt || r.metatable.__lt) { + // let res = l.metatable.__lt ? l.metatable.__lt(l, r) : r.metatable.__lt(l, r); + // if (res < 0) + // throw new Error("attempt to compare ...") + // return res; + // } +} - static luaV_equalobj(t1, t2) { - if (t1.ttype() !== t2.ttype()) { /* not the same variant? */ - if (t1.ttnov() !== t2.ttnov() || t1.ttnov() !== CT.LUA_NUMBER) - return 0; /* only numbers can be equal with different variants */ - else { /* two numbers with different variants */ - /* compare them as integers */ - return Math.floor(t1.value) === Math.floor(t2.value) // TODO: tointeger - } +const luaV_equalobj = function(t1, t2) { + if (t1.ttype() !== t2.ttype()) { /* not the same variant? */ + if (t1.ttnov() !== t2.ttnov() || t1.ttnov() !== CT.LUA_NUMBER) + return 0; /* only numbers can be equal with different variants */ + else { /* two numbers with different variants */ + /* compare them as integers */ + return Math.floor(t1.value) === Math.floor(t2.value) // TODO: tointeger } + } - /* values have same type and same variant */ - switch(t1.ttype()) { - case CT.LUA_TNIL: - return 1; - case CT.LUA_TNUMINT: - case CT.LUA_TNUMFLT: - case CT.LUA_TBOOLEAN: - case CT.LUA_TLIGHTUSERDATA: - case CT.LUA_TLCF: - case CT.LUA_TSHRSTR: - case CT.LUA_TLNGSTR: - return t1.value === t2.value ? 1 : 0; - case CT.LUA_TUSERDATA: - case CT.LUA_TTABLE: - if (t1 === t2) return 1; - // TODO: __eq - default: - return t1.value === t2.value ? 1 : 0; - } + /* values have same type and same variant */ + switch(t1.ttype()) { + case CT.LUA_TNIL: + return 1; + case CT.LUA_TNUMINT: + case CT.LUA_TNUMFLT: + case CT.LUA_TBOOLEAN: + case CT.LUA_TLIGHTUSERDATA: + case CT.LUA_TLCF: + case CT.LUA_TSHRSTR: + case CT.LUA_TLNGSTR: + return t1.value === t2.value ? 1 : 0; + case CT.LUA_TUSERDATA: + case CT.LUA_TTABLE: + if (t1 === t2) return 1; + // TODO: __eq + default: + return t1.value === t2.value ? 1 : 0; } +} - static forlimit(obj, step) { - let stopnow = false; - let ilimit = LuaVM.luaV_tointeger(obj, step < 0 ? 2 : 1); - if (ilimit === false) { - let n = LuaVM.tonumber(obj); - if (n === false) - return false; - - if (0 < n) { - ilimit = llimit.LUA_MAXINTEGER; - if (step < 0) stopnow = true; - } else { - ilimit = llimit.LUA_MININTEGER; - if (step >= 0) stopnow = true; - } +const forlimit = function(obj, step) { + let stopnow = false; + let ilimit = luaV_tointeger(obj, step < 0 ? 2 : 1); + if (ilimit === false) { + let n = tonumber(obj); + if (n === false) + return false; + + if (0 < n) { + ilimit = llimit.LUA_MAXINTEGER; + if (step < 0) stopnow = true; + } else { + ilimit = llimit.LUA_MININTEGER; + if (step >= 0) stopnow = true; } + } - return { - casted: true, - stopnow: stopnow, - ilimit: ilimit - } + return { + casted: true, + stopnow: stopnow, + ilimit: ilimit } +} - /* - ** try to convert a value to an integer, rounding according to 'mode': - ** mode == 0: accepts only integral values - ** mode == 1: takes the floor of the number - ** mode == 2: takes the ceil of the number - */ - static luaV_tointeger(obj, mode) { - if (obj.ttisfloat()) { - let n = obj.value; - let f = n|0; - - if (n !== f) { /* not an integral value? */ - if (mode === 0) - return false; /* fails if mode demands integral value */ - else if (mode > 1) /* needs ceil? */ - f += 1; /* convert floor to ceil (remember: n != f) */ - } - - return f|0; - } else if (obj.ttisinteger()) { - return obj.value|0; - } else if (obj.ttisstring()) { - return LuaVM.luaV_tointeger(parseFloat(obj.value), mode); // TODO: luaO_str2num +/* +** try to convert a value to an integer, rounding according to 'mode': +** mode == 0: accepts only integral values +** mode == 1: takes the floor of the number +** mode == 2: takes the ceil of the number +*/ +const luaV_tointeger = function(obj, mode) { + if (obj.ttisfloat()) { + let n = obj.value; + let f = n|0; + + if (n !== f) { /* not an integral value? */ + if (mode === 0) + return false; /* fails if mode demands integral value */ + else if (mode > 1) /* needs ceil? */ + f += 1; /* convert floor to ceil (remember: n != f) */ } - return false; + return f|0; + } else if (obj.ttisinteger()) { + return obj.value|0; + } else if (obj.ttisstring()) { + return luaV_tointeger(parseFloat(obj.value), mode); // TODO: luaO_str2num } - static tonumber(v) { - if (v.type === CT.LUA_TNUMFLT) - return new TValue(v.type, v.value); + return false; +} - if (v.type === CT.LUA_TNUMINT) - return new TValue(CT.LUA_TNUMFLT, v.value); +const tonumber = function(v) { + if (v.type === CT.LUA_TNUMFLT) + return new TValue(v.type, v.value); - if (v.type === CT.LUA_TSHRSTR || v.type === CT.LUA_TLNGSTR) - return new TValue(CT.LUA_TNUMFLT, parseFloat(v.value)); // TODO: luaO_str2num + if (v.type === CT.LUA_TNUMINT) + return new TValue(CT.LUA_TNUMFLT, v.value); - return false; - } + if (v.type === CT.LUA_TSHRSTR || v.type === CT.LUA_TLNGSTR) + return new TValue(CT.LUA_TNUMFLT, parseFloat(v.value)); // TODO: luaO_str2num - static LTnum(l, r) { - if (l.ttisinteger()) { - if (r.ttisinteger()) - return l.value < r.value ? 1 : 0; - else - return LuaVM.LTintfloat(r.value, l.value); - } else { - if (r.ttisfloat()) - return l.value < r.value ? 1 : 0; - else if (isNan(l.value)) - return 0; - else - return !LuaVM.LEintfloat(r.value, l.value); - } - } + return false; +} - static LEnum(l, r) { - if (l.ttisinteger()) { - if (r.ttisinteger()) - return l.value <= r.value ? 1 : 0; - else - return LuaVM.LEintfloat(l.value, r.value); - } else { - if (r.ttisfloat()) - return l.value <= r.value ? 1 : 0; - else if (isNan(l.value)) - return false; - else - return !LuaVM.LTintfloat(r.value, l.value); - } +const LTnum = function(l, r) { + if (l.ttisinteger()) { + if (r.ttisinteger()) + return l.value < r.value ? 1 : 0; + else + return LTintfloat(r.value, l.value); + } else { + if (r.ttisfloat()) + return l.value < r.value ? 1 : 0; + else if (isNan(l.value)) + return 0; + else + return !LEintfloat(r.value, l.value); } +} - static LEintfloat(l, r) { - // TODO: LEintfloat - return l <= r ? 1 : 0; +const LEnum = function(l, r) { + if (l.ttisinteger()) { + if (r.ttisinteger()) + return l.value <= r.value ? 1 : 0; + else + return LEintfloat(l.value, r.value); + } else { + if (r.ttisfloat()) + return l.value <= r.value ? 1 : 0; + else if (isNan(l.value)) + return false; + else + return !LTintfloat(r.value, l.value); } +} - static LTintfloat(l, r) { - // TODO: LTintfloat - return l < r ? 1 : 0; - } +const LEintfloat = function(l, r) { + // TODO: LEintfloat + return l <= r ? 1 : 0; +} - static l_strcmp(ls, rs) { - // TODO: lvm.c:248 static int l_strcmp (const TString *ls, const TString *rs) - return ls.value === rs.value ? 0 : (ls.value < rs.value ? -1 : 1); - } +const LTintfloat = function(l, r) { + // TODO: LTintfloat + return l < r ? 1 : 0; +} - static l_isfalse(o) { - return o.ttisnil() || (o.ttisboolean() && o.value === false) - } +const l_strcmp = function(ls, rs) { + // TODO: lvm.c:248 static int l_strcmp (const TString *ls, const TString *rs) + return ls.value === rs.value ? 0 : (ls.value < rs.value ? -1 : 1); +} +const l_isfalse = function(o) { + return o.ttisnil() || (o.ttisboolean() && o.value === false) } module.exports = { - LuaVM: LuaVM + RA: RA, + RB: RB, + RC: RC, + RKB: RKB, + RKC: RKC, + luaV_execute: luaV_execute, + dojump: dojump, + donextjump: donextjump, + luaV_lessequal: luaV_lessequal, + luaV_lessthan: luaV_lessthan, + luaV_equalobj: luaV_equalobj, + forlimit: forlimit, + luaV_tointeger: luaV_tointeger, + tonumber: tonumber, + LTnum: LTnum, + LEnum: LEnum, + LEintfloat: LEintfloat, + LTintfloat: LTintfloat, + l_strcmp: l_strcmp, + l_isfalse: l_isfalse };
\ No newline at end of file diff --git a/tests/lvm.js b/tests/lvm.js index 1a65d8a..397dbad 100644 --- a/tests/lvm.js +++ b/tests/lvm.js @@ -10,7 +10,7 @@ const DataView = require('buffer-dataview'); const BytecodeParser = require("../src/lundump.js"); const lua_State = require("../src/lstate.js").lua_State; -const LuaVM = require("../src/lvm.js").LuaVM; +const VM = require("../src/lvm.js"); const Table = require("../src/lobject.js").Table; const toByteCode = function (luaCode) { @@ -32,7 +32,7 @@ const toByteCode = function (luaCode) { }; }; -const getVM = function (luaCode) { +const getState = function (luaCode) { var bc = toByteCode(luaCode), dv = bc.dataView, bcl = bc.bclist; @@ -40,28 +40,26 @@ const getVM = function (luaCode) { let p = new BytecodeParser(dv); let cl = p.luaU_undump(); - let L = new lua_State(cl); - - return new LuaVM(L); + return new lua_State(cl); }; test('LOADK, RETURN', function (t) { let luaCode = ` local a = "hello world" return a - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, "hello world", "Program output is correct" ); @@ -73,19 +71,19 @@ test('MOV', function (t) { local a = "hello world" local b = a return b - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, "hello world", "Program output is correct" ); @@ -96,19 +94,19 @@ test('Binary op', function (t) { local a = 5 local b = 10 return a + b, a - b, a * b, a / b, a % b, a^b, a // b, a & b, a | b, a ~ b, a << b, a >> b - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.deepEqual( - vm.L.stack.slice(vm.L.top - 12, vm.L.top).map(function (e) { return e.value; }), + L.stack.slice(L.top - 12, L.top).map(function (e) { return e.value; }), [15, -5, 50, 0.5, 5, 9765625.0, 0, 0, 15, 15, 5120, 0], "Program output is correct" ); @@ -120,19 +118,19 @@ test('Unary op, LOADBOOL', function (t) { local a = 5 local b = false return -a, not b, ~a - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.deepEqual( - vm.L.stack.slice(vm.L.top - 3, vm.L.top).map(function (e) { return e.value; }), + L.stack.slice(L.top - 3, L.top).map(function (e) { return e.value; }), [-5, true, -6], "Program output is correct" ); @@ -143,19 +141,19 @@ test('NEWTABLE', function (t) { let luaCode = ` local a = {} return a - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.ok( - vm.L.stack[vm.L.top - 1] instanceof Table, + L.stack[L.top - 1] instanceof Table, "Program output is correct" ); }); @@ -170,19 +168,19 @@ test('CALL', function (t) { local c = f(1, 2) return c - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, 3, "Program output is correct" ); @@ -202,19 +200,19 @@ test('Multiple return', function (t) { c, d, e = f(1,2) return c, d, e - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.deepEqual( - vm.L.stack.slice(vm.L.top - 3, vm.L.top).map(function (e) { return e.value; }), + L.stack.slice(L.top - 3, L.top).map(function (e) { return e.value; }), [3, -1, 2], "Program output is correct" ); @@ -228,19 +226,19 @@ test('TAILCALL', function (t) { end return f(1,2) - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, 3, "Program output is correct" ); @@ -254,19 +252,19 @@ test('VARARG', function (t) { end return f(1,2,3) - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.deepEqual( - vm.L.stack.slice(vm.L.top - 3, vm.L.top).map(function (e) { return e.value; }), + L.stack.slice(L.top - 3, L.top).map(function (e) { return e.value; }), [1, 2, 3], "Program output is correct" ); @@ -278,19 +276,19 @@ test('LE, JMP', function (t) { local a, b = 1, 1 return a >= b - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, true, "Program output is correct" ); @@ -302,19 +300,19 @@ test('LT', function (t) { local a, b = 1, 1 return a > b - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, false, "Program output is correct" ); @@ -326,19 +324,19 @@ test('EQ', function (t) { local a, b = 1, 1 return a == b - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, true, "Program output is correct" ); @@ -351,19 +349,19 @@ test('TESTSET (and)', function (t) { local b = "hello" return a and b - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, "hello", "Program output is correct" ); @@ -376,19 +374,19 @@ test('TESTSET (or)', function (t) { local b = "hello" return a or b - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, "hello", "Program output is correct" ); @@ -405,19 +403,19 @@ test('TEST (true)', function (t) { end return "goodbye" - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, "hello", "Program output is correct" ); @@ -434,19 +432,19 @@ test('TEST (false)', function (t) { end return "goodbye" - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, "goodbye", "Program output is correct" ); @@ -462,19 +460,19 @@ test('FORPREP, FORLOOP (int)', function (t) { end return total - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, 55, "Program output is correct" ); @@ -489,19 +487,19 @@ test('FORPREP, FORLOOP (float)', function (t) { end return total - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, 60.5, "Program output is correct" ); @@ -516,25 +514,25 @@ test('SETTABLE, GETTABLE', function (t) { t["two"] = "world" return t - `, vm; + `, L; t.plan(3); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value.array[1].value, + L.stack[L.top - 1].value.array[1].value, "hello", "Program output is correct" ); t.strictEqual( - vm.L.stack[vm.L.top - 1].value.hash.get("two").value, + L.stack[L.top - 1].value.hash.get("two").value, "world", "Program output is correct" ); @@ -552,19 +550,19 @@ test('SETUPVAL, GETUPVAL', function (t) { end return f() - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, "world", "Program output is correct" ); @@ -579,25 +577,25 @@ test('SETTABUP, GETTABUP', function (t) { t["two"] = "world" return t - `, vm; + `, L; t.plan(3); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value.array[1].value, + L.stack[L.top - 1].value.array[1].value, "hello", "Program output is correct" ); t.strictEqual( - vm.L.stack[vm.L.top - 1].value.hash.get("two").value, + L.stack[L.top - 1].value.hash.get("two").value, "world", "Program output is correct" ); @@ -614,19 +612,19 @@ test('SELF', function (t) { end return t:get() - `, vm; + `, L; t.plan(2); t.comment("Running following code: \n" + luaCode); t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); + L = getState(luaCode); + VM.luaV_execute(L); }, "Program executed without errors"); t.strictEqual( - vm.L.stack[vm.L.top - 1].value, + L.stack[L.top - 1].value, "hello", "Program output is correct" ); @@ -638,19 +636,19 @@ test('SETLIST', function (t) { local t = {1, 2, 3, 4, 5, 6, 7, 8, 9} return t - `, vm; + `, L; - t.plan(1); + t.plan(2); t.comment("Running following code: \n" + luaCode); - // t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); - // }, "Program executed without errors"); + t.doesNotThrow(function () { + L = getState(luaCode); + VM.luaV_execute(L); + }, "Program executed without errors"); t.deepEqual( - vm.L.stack[vm.L.top - 1].value.array.slice(1).map(function (e) { return e.value; }), + L.stack[L.top - 1].value.array.slice(1).map(function (e) { return e.value; }), [1, 2, 3, 4, 5, 6, 7, 8, 9], "Program output is correct" ); @@ -666,19 +664,19 @@ test('Variable SETLIST', function (t) { local t = {1, 2, 3, 4, 5, a()} return t - `, vm; + `, L; - t.plan(1); + t.plan(2); t.comment("Running following code: \n" + luaCode); - // t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); - // }, "Program executed without errors"); + t.doesNotThrow(function () { + L = getState(luaCode); + VM.luaV_execute(L); + }, "Program executed without errors"); t.deepEqual( - vm.L.stack[vm.L.top - 1].value.array.slice(1).map(function (e) { return e.value; }), + L.stack[L.top - 1].value.array.slice(1).map(function (e) { return e.value; }), [1, 2, 3, 4, 5, 6, 7, 8, 9], "Program output is correct" ); @@ -690,19 +688,19 @@ test('Long SETLIST', function (t) { local t = {1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5} return t - `, vm; + `, L; - t.plan(1); + t.plan(2); t.comment("Running following code: \n" + luaCode); - // t.doesNotThrow(function () { - vm = getVM(luaCode); - vm.execute(); - // }, "Program executed without errors"); + t.doesNotThrow(function () { + L = getState(luaCode); + VM.luaV_execute(L); + }, "Program executed without errors"); t.deepEqual( - vm.L.stack[vm.L.top - 1].value.array.slice(1).map(function (e) { return e.value; }), + L.stack[L.top - 1].value.array.slice(1).map(function (e) { return e.value; }), [1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5], "Program output is correct" ); @@ -714,19 +712,19 @@ test('Long SETLIST', function (t) { // local t = {1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 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4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5], // "Program output is correct" // ); |