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path: root/src/ldebug.js
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Diffstat (limited to 'src/ldebug.js')
-rw-r--r--src/ldebug.js129
1 files changed, 106 insertions, 23 deletions
diff --git a/src/ldebug.js b/src/ldebug.js
index 713a0fb..16449e2 100644
--- a/src/ldebug.js
+++ b/src/ldebug.js
@@ -38,6 +38,33 @@ const swapextra = function(L) {
}
};
+const lua_sethook = function(L, func, mask, count) {
+ if (func === null || mask === 0) { /* turn off hooks? */
+ mask = 0;
+ func = null;
+ }
+ if (L.ci.callstatus & lstate.CIST_LUA)
+ L.oldpc = L.ci.pcOff;
+ L.hook = func;
+ L.basehookcount = count;
+ L.hookcount = L.basehookcount;
+ L.hookmask = mask;
+};
+
+const lua_gethook = function(L) {
+ return L.hook;
+};
+
+
+const lua_gethookmask = function(L) {
+ return L.hookmask;
+};
+
+
+const lua_gethookcount = function(L) {
+ return L.basehookcount;
+};
+
const lua_getstack = function(L, level, ar) {
let ci;
let status;
@@ -52,10 +79,11 @@ const lua_getstack = function(L, level, ar) {
return status;
};
+// TODO: returns TValue or String array ?
const upvalname = function(p, uv) {
assert(uv < p.upvalues.length);
let s = p.upvalues[uv].name;
- if (s === null) return "?".charCodeAt(0);
+ if (s === null) return ["?".charCodeAt(0)];
return s;
};
@@ -66,7 +94,7 @@ const findvararg = function(ci, n, pos) {
else {
return {
pos: ci.funcOff + nparams + n,
- name: lua.to_luastring("(*vararg)") /* generic name for any vararg */
+ name: lua.to_luastring("(*vararg)", true) /* generic name for any vararg */
};
}
};
@@ -87,7 +115,7 @@ const findlocal = function(L, ci, n) {
if (name === null) { /* no 'standard' name? */
let limit = ci === L.ci ? L.top : ci.next.func;
if (limit - base >= n && n > 0) /* is 'n' inside 'ci' stack? */
- name = lua.to_luastring("(*temporary)"); /* generic name for any valid slot */
+ name = lua.to_luastring("(*temporary)", true); /* generic name for any valid slot */
else
return null; /* no name */
}
@@ -116,18 +144,32 @@ const lua_getlocal = function(L, ar, n) {
return name;
};
+const lua_setlocal = function(L, ar, n) {
+ swapextra(L);
+ let local = findlocal(L, ar.i_ci, n);
+ let name = local.name;
+ let pos = local.pos;
+ if (name) {
+ L.stack[pos].type = L.stack[L.top - 1].type;
+ L.stack[pos].value = L.stack[L.top - 1].value;
+ L.top--; /* pop value */
+ }
+ swapextra(L);
+ return name;
+};
+
const funcinfo = function(ar, cl) {
if (cl === null || cl.type === CT.LUA_TCCL) {
- ar.source = lua.to_luastring("=[JS]");
+ ar.source = lua.to_luastring("=[JS]", true);
ar.linedefined = -1;
ar.lastlinedefined = -1;
ar.what = "J";
} else {
let p = cl.p;
- ar.source = p.source ? p.source : lua.to_luastring("=?");
+ ar.source = p.source ? p.source : lua.to_luastring("=?", true);
ar.linedefined = p.linedefined;
ar.lastlinedefined = p.lastlinedefined;
- ar.what = ar.linedefined === 0 ? lua.to_luastring("main") : lua.to_luastring("Lua");
+ ar.what = ar.linedefined === 0 ? lua.to_luastring("main", true) : lua.to_luastring("Lua", true);
}
ar.short_src = lobject.luaO_chunkid(ar.source, luaconf.LUA_IDSIZE);
@@ -156,8 +198,8 @@ const getfuncname = function(L, ci) {
if (ci === null)
return null;
else if (ci.callstatus & lstate.CIST_FIN) { /* is this a finalizer? */
- r.name = lua.to_luastring("__gc");
- r.funcname = lua.to_luastring("metamethod"); /* report it as such */
+ r.name = lua.to_luastring("__gc", true);
+ r.funcname = lua.to_luastring("metamethod", true); /* report it as such */
return r;
}
/* calling function is a known Lua function? */
@@ -260,8 +302,8 @@ const kname = function(p, pc, c) {
/* else no reasonable name found */
} else { /* 'c' is a register */
let what = getobjname(p, pc, c); /* search for 'c' */
- if (what && what.name[0] === 'c'.charCodeAt(0)) {
- return what;
+ if (what && what.funcname[0] === 'c'.charCodeAt(0)) { /* found a constant name? */
+ return what; /* 'name' already filled */
}
/* else no reasonable name found */
}
@@ -331,7 +373,7 @@ const getobjname = function(p, lastpc, reg) {
};
if (r.name) { /* is a local? */
- r.funcname = lua.to_luastring("local");
+ r.funcname = lua.to_luastring("local", true);
return r;
}
@@ -352,13 +394,14 @@ const getobjname = function(p, lastpc, reg) {
let k = i.C; /* key index */
let t = i.B; /* table index */
let vn = op === 'OP_GETTABLE' ? lfunc.luaF_getlocalname(p, t + 1, pc) : upvalname(p, t);
- r.name = kname(p, pc, k);
- r.funcname = vn && vn === lua.to_luastring("_ENV") ? lua.to_luastring("global") : lua.to_luastring("field");
+ vn = vn ? vn.jsstring() : null;
+ r.name = kname(p, pc, k).name;
+ r.funcname = vn && vn === "_ENV" ? lua.to_luastring("global", true) : lua.to_luastring("field", true);
return r;
}
case 'OP_GETUPVAL': {
r.name = upvalname(p, i.B);
- r.funcname = lua.to_luastring("upvalue");
+ r.funcname = lua.to_luastring("upvalue", true);
return r;
}
case 'OP_LOADK':
@@ -366,15 +409,15 @@ const getobjname = function(p, lastpc, reg) {
let b = op === 'OP_LOADK' ? i.Bx : p.code[pc + 1].Ax;
if (p.k[b].ttisstring()) {
r.name = p.k[b].value;
- r.funcname = lua.to_luastring("constant");
+ r.funcname = lua.to_luastring("constant", true);
return r;
}
break;
}
case 'OP_SELF': {
let k = i.C;
- r.name = kname(p, pc, k);
- r.funcname = lua.to_luastring("method");
+ r.name = kname(p, pc, k).name;
+ r.funcname = lua.to_luastring("method", true);
return r;
}
default: break;
@@ -403,7 +446,7 @@ const funcnamefromcode = function(L, ci) {
if (ci.callstatus & lstate.CIST_HOOKED) {
r.name = [lua.char["?"]];
- r.funcname = lua.to_luastring("hook");
+ r.funcname = lua.to_luastring("hook", true);
return r;
}
@@ -412,8 +455,8 @@ const funcnamefromcode = function(L, ci) {
case 'OP_TAILCALL':
return getobjname(p, pc, i.A); /* get function name */
case 'OP_TFORCALL':
- r.name = lua.to_luastring("for iterator");
- r.funcname = lua.to_luastring("for iterator");
+ r.name = lua.to_luastring("for iterator", true);
+ r.funcname = lua.to_luastring("for iterator", true);
return r;
/* other instructions can do calls through metamethods */
case 'OP_SELF':
@@ -449,7 +492,7 @@ const funcnamefromcode = function(L, ci) {
}
r.name = L.l_G.tmname[tm];
- r.funcname = lua.to_luastring("metamethod");
+ r.funcname = lua.to_luastring("metamethod", true);
return r;
};
@@ -473,7 +516,7 @@ const getupvalname = function(L, ci, o, name) {
if (c.upvals[i].val(L) === o) {
return {
name: upvalname(c.p, i),
- funcname: lua.to_luastring('upvalue')
+ funcname: lua.to_luastring('upvalue', true)
};
}
}
@@ -501,7 +544,7 @@ const luaG_typeerror = function(L, o, op) {
const luaG_concaterror = function(L, p1, p2) {
if (p1.ttisstring() || p1.ttisnumber()) p1 = p2;
- luaG_typeerror(L, p1, lua.to_luastring('concatenate'));
+ luaG_typeerror(L, p1, lua.to_luastring('concatenate', true));
};
/*
@@ -563,6 +606,40 @@ const luaG_tointerror = function(L, p1, p2) {
luaG_runerror(L, lua.to_luastring(`number${lobject.jsstring(varinfo(L, p2))} has no integer representation`));
};
+const luaG_traceexec = function(L) {
+ let ci = L.ci;
+ let mask = L.hookmask;
+ let counthook = (--L.hookcount === 0 && (mask & lua.LUA_MASKCOUNT));
+ if (counthook)
+ L.hookcount = L.basehookcount; /* reset count */
+ else if (!(mask & lua.LUA_MASKLINE))
+ return; /* no line hook and count != 0; nothing to be done */
+ if (ci.callstatus & lstate.CIST_HOOKYIELD) { /* called hook last time? */
+ ci.callstatus &= ~lstate.CIST_HOOKYIELD; /* erase mark */
+ return; /* do not call hook again (VM yielded, so it did not move) */
+ }
+ if (counthook)
+ ldo.luaD_hook(L, lua.LUA_HOOKCOUNT, -1); /* call count hook */
+ if (mask & lua.LUA_MASKLINE) {
+ let p = ci.func.p;
+ let npc = ci.pcOff; // pcRel(ci.u.l.savedpc, p);
+ let newline = p.lineinfo ? p.lineinfo[npc] : -1;
+ if (npc === 0 || /* call linehook when enter a new function, */
+ ci.pcOff <= L.oldpc || /* when jump back (loop), or when */
+ newline !== p.lineinfo ? p.lineinfo[L.oldpc] : -1) /* enter a new line */
+ ldo.luaD_hook(L, lua.LUA_HOOKLINE, newline); /* call line hook */
+ }
+ L.oldpc = ci.pcOff;
+ if (L.status === TS.LUA_YIELD) { /* did hook yield? */
+ if (counthook)
+ L.hookcount = 1; /* undo decrement to zero */
+ ci.u.l.savedpc--; /* undo increment (resume will increment it again) */
+ ci.callstatus |= lstate.CIST_HOOKYIELD; /* mark that it yielded */
+ ci.func = L.top - 1; /* protect stack below results */
+ ldo.luaD_throw(L, TS.LUA_YIELD);
+ }
+};
+
module.exports.luaG_addinfo = luaG_addinfo;
module.exports.luaG_concaterror = luaG_concaterror;
module.exports.luaG_errormsg = luaG_errormsg;
@@ -570,7 +647,13 @@ module.exports.luaG_opinterror = luaG_opinterror;
module.exports.luaG_ordererror = luaG_ordererror;
module.exports.luaG_runerror = luaG_runerror;
module.exports.luaG_tointerror = luaG_tointerror;
+module.exports.luaG_traceexec = luaG_traceexec;
module.exports.luaG_typeerror = luaG_typeerror;
+module.exports.lua_gethook = lua_gethook;
+module.exports.lua_gethookcount = lua_gethookcount;
+module.exports.lua_gethookmask = lua_gethookmask;
module.exports.lua_getinfo = lua_getinfo;
module.exports.lua_getlocal = lua_getlocal;
module.exports.lua_getstack = lua_getstack;
+module.exports.lua_sethook = lua_sethook;
+module.exports.lua_setlocal = lua_setlocal;
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-11 11:48:45 +0000