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fix(luado): get old_line length before executing Lua code

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This commit is contained in:
zeertzjq 2023-03-04 12:08:45 +08:00
parent 98e8464319
commit 808691e399
1 changed files with 3 additions and 3 deletions
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6
src/nvim/lua/executor.c
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@ -1706,7 +1706,9 @@ void ex_luado(exarg_T *const eap)
break; break;
} }
lua_pushvalue(lstate, -1); lua_pushvalue(lstate, -1);
const char *old_line = (const char *)ml_get_buf(curbuf, l, false); const char *const old_line = (const char *)ml_get_buf(curbuf, l, false);
// Get length of old_line here as calling Lua code may free it.
const size_t old_line_len = strlen(old_line);
lua_pushstring(lstate, old_line); lua_pushstring(lstate, old_line);
lua_pushnumber(lstate, (lua_Number)l); lua_pushnumber(lstate, (lua_Number)l);
if (nlua_pcall(lstate, 2, 1)) { if (nlua_pcall(lstate, 2, 1)) {
@ -1714,8 +1716,6 @@ void ex_luado(exarg_T *const eap)
break; break;
} }
if (lua_isstring(lstate, -1)) { if (lua_isstring(lstate, -1)) {
size_t old_line_len = strlen(old_line);
size_t new_line_len; size_t new_line_len;
const char *const new_line = lua_tolstring(lstate, -1, &new_line_len); const char *const new_line = lua_tolstring(lstate, -1, &new_line_len);
char *const new_line_transformed = xmemdupz(new_line, new_line_len); char *const new_line_transformed = xmemdupz(new_line, new_line_len);