diff options
Diffstat (limited to 'src/ldump.js')
-rw-r--r-- | src/ldump.js | 64 |
1 files changed, 40 insertions, 24 deletions
diff --git a/src/ldump.js b/src/ldump.js index 795bd19..dd8eb29 100644 --- a/src/ldump.js +++ b/src/ldump.js @@ -10,7 +10,7 @@ const CT = lua.constant_types; const LUAC_DATA = "\x19\x93\r\n\x1a\n"; const LUAC_INT = 0x5678; const LUAC_NUM = 370.5; -const LUAC_VERSION = lua.LUA_VERSION_MAJOR.charCodeAt(0) * 16 + lua.LUA_VERSION_MINOR.charCodeAt(0); +const LUAC_VERSION = Number.parseInt(lua.LUA_VERSION_MAJOR) * 16 + Number.parseInt(lua.LUA_VERSION_MINOR); const LUAC_FORMAT = 0; /* this is the official format */ class DumpState { @@ -28,51 +28,66 @@ const DumpBlock = function(b, size, D) { D.status = D.writer(D.L, b, size, D.data); }; -const DumpVector = function(v, n, D) { - DumpBlock(v, n, D); -}; - const DumpLiteral = function(s, D) { + s = lua.to_luastring(s); DumpBlock(s, s.length, D); }; -const DumpVar = function (x,D) { - DumpVector(x, 1, D); -}; - const DumpByte = function(y, D) { - DumpVar(y, D); + DumpBlock([y], 1, D); }; const DumpInt = function(x, D) { - DumpVar(x, D); + let dv = new DataView(new ArrayBuffer(4)); + dv.setInt32(0, x, true); + let t = []; + for (let i = 0; i < 4; i++) + t.push(dv.getUint8(i, true)); + + DumpBlock(t, 4, D); }; -const DumpInteger = DumpInt; +const DumpInteger = function(x, D) { + let dv = new DataView(new ArrayBuffer(8)); + dv.setInt32(0, x, true); + let t = []; + for (let i = 0; i < 8; i++) + t.push(dv.getUint8(i, true)); + DumpBlock(t, 8, D); +}; const DumpNumber = function(x, D) { - DumpVar(x, D); + let dv = new DataView(new ArrayBuffer(8)); + dv.setFloat64(0, x, true); + let t = []; + for (let i = 0; i < 8; i++) + t.push(dv.getUint8(i, true)); + + DumpBlock(t, 8, D); }; const DumpString = function(s, D) { if (s === null) DumpByte(0, D); else { - let size = s.value.length + 1; - let str = s.value; + let size = s.length + 1; + let str = s; if (size < 0xFF) DumpByte(size, D); else { DumpByte(0xFF, D); - DumpVar(size, D); + DumpInt(size, D); } - DumpVector(str, size - 1, D); /* no need to save '\0' */ + DumpBlock(str, size - 1, D); /* no need to save '\0' */ } }; const DumpCode = function(f, D) { - DumpInt(f.code.length, D); - DumpVector(f.code, f.code.length, D); + let s = f.code.map(e => e.code); + DumpInt(s.length, D); + + for (let i = 0; i < s.length; i++) + DumpInt(s[i], D); }; const DumpConstants = function(f, D) { @@ -120,25 +135,25 @@ const DumpUpvalues = function(f, D) { const DumpDebug = function(f, D) { let n = D.strip ? 0 : f.lineinfo.length; DumpInt(n, D); - DumpVector(f.lineinfo, n, D); + DumpBlock(f.lineinfo, n, D); n = D.strip ? 0 : f.locvars.length; DumpInt(n, D); for (let i = 0; i < n; i++) { - DumpString(f.locvars[i].varname, D); + DumpString(f.locvars[i].varname.value, D); DumpInt(f.locvars[i].startpc, D); DumpInt(f.locvars[i].endpc, D); } n = D.strip ? 0 : f.upvalues.length; DumpInt(n, D); for (let i = 0; i < n; i++) - DumpString(f.upvalues[i].name, D); + DumpString(f.upvalues[i].name.value, D); }; const DumpFunction = function(f, psource, D) { if (D.strip || f.source === psource) DumpString(null, D); /* no debug info or same source as its parent */ else - DumpString(f.source, D); + DumpString(f.source.value, D); DumpInt(f.linedefined, D); DumpInt(f.lastlinedefined, D); DumpByte(f.numparams, D); @@ -155,7 +170,8 @@ const DumpHeader = function(D) { DumpLiteral(lua.LUA_SIGNATURE, D); DumpByte(LUAC_VERSION, D); DumpByte(LUAC_FORMAT, D); - DumpLiteral(LUAC_DATA, D); + let cdata = LUAC_DATA.split('').map(e => e.charCodeAt(0)); + DumpBlock(cdata, cdata.length, D); DumpByte(4, D); // intSize DumpByte(8, D); // size_tSize DumpByte(4, D); // instructionSize |