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Upgrade Lua to 5.4.3 (#217)

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Based on https://github.com/lua/lua/releases/tag/v5.4.3 (commit eadd8c7).
This commit is contained in:
Paul Kulchenko 2021-07-28 09:26:35 -07:00 • committed by GitHub
parent 3ac6576fe5
commit a73e808b25
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GPG key ID: 4AEE18F83AFDEB23
41 changed files with 464 additions and 264 deletions
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17
third_party/lua/liolib.c vendored
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@ -178,7 +178,7 @@ static int f_tostring (lua_State *L) {
static FILE *tofile (lua_State *L) {
LStream *p = tolstream(L);
if (isclosed(p))
if (l_unlikely(isclosed(p)))
luaL_error(L, "attempt to use a closed file");
lua_assert(p->f);
return p->f;
@ -253,7 +253,7 @@ static LStream *newfile (lua_State *L) {
static void opencheck (lua_State *L, const char *fname, const char *mode) {
LStream *p = newfile(L);
p->f = fopen(fname, mode);
if (p->f == NULL)
if (l_unlikely(p->f == NULL))
luaL_error(L, "cannot open file '%s' (%s)", fname, strerror(errno));
}
@ -301,7 +301,7 @@ static FILE *getiofile (lua_State *L, const char *findex) {
LStream *p;
lua_getfield(L, LUA_REGISTRYINDEX, findex);
p = (LStream *)lua_touserdata(L, -1);
if (isclosed(p))
if (l_unlikely(isclosed(p)))
luaL_error(L, "default %s file is closed", findex + IOPREF_LEN);
return p->f;
}
@ -428,7 +428,7 @@ typedef struct {
** Add current char to buffer (if not out of space) and read next one
*/
static int nextc (RN *rn) {
if (rn->n >= L_MAXLENNUM) { /* buffer overflow? */
if (l_unlikely(rn->n >= L_MAXLENNUM)) { /* buffer overflow? */
rn->buff[0] = '\0'; /* invalidate result */
return 0; /* fail */
}
@ -491,8 +491,8 @@ static int read_number (lua_State *L, FILE *f) {
ungetc(rn.c, rn.f); /* unread look-ahead char */
l_unlockfile(rn.f);
rn.buff[rn.n] = '\0'; /* finish string */
if (lua_stringtonumber(L, rn.buff)) /* is this a valid number? */
return 1; /* ok */
if (l_likely(lua_stringtonumber(L, rn.buff)))
return 1; /* ok, it is a valid number */
else { /* invalid format */
lua_pushnil(L); /* "result" to be removed */
return 0; /* read fails */
@ -668,7 +668,8 @@ static int g_write (lua_State *L, FILE *f, int arg) {
status = status && (fwrite(s, sizeof(char), l, f) == l);
}
}
if (status) return 1; /* file handle already on stack top */
if (l_likely(status))
return 1; /* file handle already on stack top */
else return luaL_fileresult(L, status, NULL);
}
@ -695,7 +696,7 @@ static int f_seek (lua_State *L) {
luaL_argcheck(L, (lua_Integer)offset == p3, 3,
"not an integer in proper range");
op = l_fseek(f, offset, mode[op]);
if (op)
if (l_unlikely(op))
return luaL_fileresult(L, 0, NULL); /* error */
else {
lua_pushinteger(L, (lua_Integer)l_ftell(f));