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Repair buggy error-handling in makeclass/getclass

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jyelon
2021-12-27 16:44:12 -05:00
parent 82381ada2e
commit 9517b3e004
5 changed files with 170 additions and 76 deletions
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28
luprex/core/cpp/luastack.hpp
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@@ -386,17 +386,35 @@ public:
int next(LuaSlot tab, LuaSlot key, LuaSlot value) const;
void getclass(LuaSlot tab, LuaSlot name) const;
// Return true if the classname is legal.
bool validclassname(LuaSlot value) const;
static bool validclassname(const std::string &cname);
// Return the class name if x is a valid classtab.
// Otherwise, returns empty string. If nonempty, the
// result is guaranteed to be a validclassname.
// This can also function as an "isclass" operator.
std::string classname(LuaSlot x) const;
// Look up a class.
// If there is a problem, returns an error message.
// There are lots of error conditions, including such things
// as no such class, corrupted class, classname invalid, etc.
std::string getclass(LuaSlot tab, LuaSlot name) const;
std::string getclass(LuaSlot tab, const char *name) const;
std::string getclass(LuaSlot tab, const std::string &name) const;
// Create a class, or look up an existing class.
// WARNING: this routine assert-fails if the parameter is not
// a valid classname. Check the classname before calling this!
void makeclass(LuaSlot tab, LuaSlot name) const;
void makeclass(LuaSlot tab, const char *name) const;
void makeclass(LuaSlot tab, const std::string &name) const;
std::string classname(LuaSlot tab) const;
// Get the ID of a tangible. It's a little weird to put this in
// this module.
int64_t tanid(LuaSlot tab) const;
// There's no 'isclass' operator, but 'classname' will return empty
// string if tab is not a valid class.
void movesortablekey(LuaSlot val, LuaStack &other, LuaSlot otherslot);
bool rawequal(LuaSlot v1, LuaSlot v2) const {