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Several details in code (e.g., moving a variable to the most inner
scope that encloses its uses), comments, parameter names, extra tests.
This commit is contained in:
Roberto Ierusalimschy
2020-02-27 12:59:22 -03:00
parent 9b7987a9d1
commit 6eb53b7526
13 changed files with 52 additions and 45 deletions
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ldblib.c
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@@ -202,8 +202,6 @@ static int db_getinfo (lua_State *L) {
static int db_getlocal (lua_State *L) {
int arg;
lua_State *L1 = getthread(L, &arg);
lua_Debug ar;
const char *name;
int nvar = (int)luaL_checkinteger(L, arg + 2); /* local-variable index */
if (lua_isfunction(L, arg + 1)) { /* function argument? */
lua_pushvalue(L, arg + 1); /* push function */
@@ -211,6 +209,8 @@ static int db_getlocal (lua_State *L) {
return 1; /* return only name (there is no value) */
}
else { /* stack-level argument */
lua_Debug ar;
const char *name;
int level = (int)luaL_checkinteger(L, arg + 1);
if (!lua_getstack(L1, level, &ar)) /* out of range? */
return luaL_argerror(L, arg+1, "level out of range");