'addk' broken in two functions
This commit is contained in:
47
lcode.c
47
lcode.c
@@ -537,6 +537,22 @@ static void freeexps (FuncState *fs, expdesc *e1, expdesc *e2) {
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/*
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/*
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** Add constant 'v' to prototype's list of constants (field 'k').
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** Add constant 'v' to prototype's list of constants (field 'k').
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*/
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static int addk (FuncState *fs, Proto *f, TValue *v) {
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lua_State *L = fs->ls->L;
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int oldsize = f->sizek;
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int k = fs->nk;
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luaM_growvector(L, f->k, k, f->sizek, TValue, MAXARG_Ax, "constants");
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while (oldsize < f->sizek)
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setnilvalue(&f->k[oldsize++]);
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setobj(L, &f->k[k], v);
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fs->nk++;
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luaC_barrier(L, f, v);
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return k;
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}
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/*
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** Use scanner's table to cache position of constants in constant list
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** Use scanner's table to cache position of constants in constant list
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** and try to reuse constants. Because some values should not be used
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** and try to reuse constants. Because some values should not be used
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** as keys (nil cannot be a key, integer keys can collapse with float
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** as keys (nil cannot be a key, integer keys can collapse with float
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@@ -544,12 +560,11 @@ static void freeexps (FuncState *fs, expdesc *e1, expdesc *e2) {
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** Note that all functions share the same table, so entering or exiting
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** Note that all functions share the same table, so entering or exiting
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** a function can make some indices wrong.
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** a function can make some indices wrong.
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*/
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*/
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static int addk (FuncState *fs, TValue *key, TValue *v) {
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static int k2proto (FuncState *fs, TValue *key, TValue *v) {
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TValue val;
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TValue val;
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lua_State *L = fs->ls->L;
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Proto *f = fs->f;
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Proto *f = fs->f;
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int tag = luaH_get(fs->ls->h, key, &val); /* query scanner table */
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int tag = luaH_get(fs->ls->h, key, &val); /* query scanner table */
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int k, oldsize;
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int k;
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if (tag == LUA_VNUMINT) { /* is there an index there? */
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if (tag == LUA_VNUMINT) { /* is there an index there? */
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k = cast_int(ivalue(&val));
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k = cast_int(ivalue(&val));
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/* correct value? (warning: must distinguish floats from integers!) */
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/* correct value? (warning: must distinguish floats from integers!) */
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@@ -558,17 +573,11 @@ static int addk (FuncState *fs, TValue *key, TValue *v) {
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return k; /* reuse index */
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return k; /* reuse index */
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}
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}
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/* constant not found; create a new entry */
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/* constant not found; create a new entry */
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oldsize = f->sizek;
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k = addk(fs, f, v);
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k = fs->nk;
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/* cache for reuse; numerical value does not need GC barrier;
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/* numerical value does not need GC barrier;
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table has no metatable, so it does not need to invalidate cache */
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table has no metatable, so it does not need to invalidate cache */
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setivalue(&val, k);
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setivalue(&val, k);
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luaH_set(L, fs->ls->h, key, &val);
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luaH_set(fs->ls->L, fs->ls->h, key, &val);
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luaM_growvector(L, f->k, k, f->sizek, TValue, MAXARG_Ax, "constants");
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while (oldsize < f->sizek) setnilvalue(&f->k[oldsize++]);
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setobj(L, &f->k[k], v);
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fs->nk++;
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luaC_barrier(L, f, v);
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return k;
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return k;
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}
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}
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@@ -579,7 +588,7 @@ static int addk (FuncState *fs, TValue *key, TValue *v) {
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static int stringK (FuncState *fs, TString *s) {
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static int stringK (FuncState *fs, TString *s) {
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TValue o;
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TValue o;
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setsvalue(fs->ls->L, &o, s);
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setsvalue(fs->ls->L, &o, s);
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return addk(fs, &o, &o); /* use string itself as key */
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return k2proto(fs, &o, &o); /* use string itself as key */
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}
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}
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@@ -589,7 +598,7 @@ static int stringK (FuncState *fs, TString *s) {
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static int luaK_intK (FuncState *fs, lua_Integer n) {
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static int luaK_intK (FuncState *fs, lua_Integer n) {
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TValue o;
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TValue o;
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setivalue(&o, n);
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setivalue(&o, n);
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return addk(fs, &o, &o); /* use integer itself as key */
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return k2proto(fs, &o, &o); /* use integer itself as key */
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}
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}
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/*
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/*
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@@ -608,7 +617,7 @@ static int luaK_numberK (FuncState *fs, lua_Number r) {
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lua_Integer ik;
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lua_Integer ik;
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setfltvalue(&o, r);
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setfltvalue(&o, r);
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if (!luaV_flttointeger(r, &ik, F2Ieq)) /* not an integral value? */
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if (!luaV_flttointeger(r, &ik, F2Ieq)) /* not an integral value? */
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return addk(fs, &o, &o); /* use number itself as key */
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return k2proto(fs, &o, &o); /* use number itself as key */
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else { /* must build an alternative key */
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else { /* must build an alternative key */
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const int nbm = l_floatatt(MANT_DIG);
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const int nbm = l_floatatt(MANT_DIG);
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const lua_Number q = l_mathop(ldexp)(l_mathop(1.0), -nbm + 1);
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const lua_Number q = l_mathop(ldexp)(l_mathop(1.0), -nbm + 1);
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@@ -618,7 +627,7 @@ static int luaK_numberK (FuncState *fs, lua_Number r) {
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/* result is not an integral value, unless value is too large */
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/* result is not an integral value, unless value is too large */
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lua_assert(!luaV_flttointeger(k, &ik, F2Ieq) ||
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lua_assert(!luaV_flttointeger(k, &ik, F2Ieq) ||
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l_mathop(fabs)(r) >= l_mathop(1e6));
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l_mathop(fabs)(r) >= l_mathop(1e6));
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return addk(fs, &kv, &o);
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return k2proto(fs, &kv, &o);
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}
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}
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}
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}
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@@ -629,7 +638,7 @@ static int luaK_numberK (FuncState *fs, lua_Number r) {
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static int boolF (FuncState *fs) {
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static int boolF (FuncState *fs) {
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TValue o;
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TValue o;
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setbfvalue(&o);
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setbfvalue(&o);
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return addk(fs, &o, &o); /* use boolean itself as key */
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return k2proto(fs, &o, &o); /* use boolean itself as key */
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}
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}
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@@ -639,7 +648,7 @@ static int boolF (FuncState *fs) {
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static int boolT (FuncState *fs) {
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static int boolT (FuncState *fs) {
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TValue o;
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TValue o;
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setbtvalue(&o);
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setbtvalue(&o);
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return addk(fs, &o, &o); /* use boolean itself as key */
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return k2proto(fs, &o, &o); /* use boolean itself as key */
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}
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}
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@@ -651,7 +660,7 @@ static int nilK (FuncState *fs) {
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setnilvalue(&v);
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setnilvalue(&v);
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/* cannot use nil as key; instead use table itself to represent nil */
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/* cannot use nil as key; instead use table itself to represent nil */
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sethvalue(fs->ls->L, &k, fs->ls->h);
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sethvalue(fs->ls->L, &k, fs->ls->h);
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return addk(fs, &k, &v);
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return k2proto(fs, &k, &v);
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}
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}
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