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Fix assert aborts in lua parsing #504 #506

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8 changes: 5 additions & 3 deletions src/tup/luaparser.c
Original file line number Diff line number Diff line change
Expand Up @@ -815,9 +815,10 @@ int tup_lua_parser_new_state(void)

int parse_lua_include_rules(struct tupfile *tf)
{
int top = lua_gettop(gls);
if(parser_include_rules(tf, "Tuprules.lua") < 0) {
if(tf->luaerror == TUPLUA_PENDINGERROR) {
assert(lua_gettop(gls) == 2);
assert(lua_gettop(gls) == top + 2);
fprintf(tf->f, "tup error %s\n", tuplua_tostring(gls, -1));
lua_pop(gls, 1);
tf->luaerror = TUPLUA_ERRORSHOWN;
Expand All @@ -830,13 +831,14 @@ int parse_lua_include_rules(struct tupfile *tf)
int parse_lua_tupfile(struct tupfile *tf, struct buf *b, const char *name)
{
struct tuplua_reader_data lrd = {b, 0};
int top = lua_gettop(gls);

lua_getfield(gls, LUA_REGISTRYINDEX, "tup_traceback");

if(lua_load(gls, &tuplua_reader, &lrd, name, 0) != LUA_OK) {
fprintf(tf->f, "tup error %s\n", tuplua_tostring(gls, -1));
tf->luaerror = TUPLUA_PENDINGERROR;
assert(lua_gettop(gls) == 2);
assert(lua_gettop(gls) == top + 2);
return -1;
}

Expand All @@ -849,7 +851,7 @@ int parse_lua_tupfile(struct tupfile *tf, struct buf *b, const char *name)
fprintf(tf->f, "tup error %s\n", tuplua_tostring(gls, -1));
tf->luaerror = TUPLUA_ERRORSHOWN;
lua_pop(gls, 2);
assert(lua_gettop(gls) == 0);
assert(lua_gettop(gls) == top);
return -1;
}

Expand Down