Added CObjError, cosmoV_throw(), pcall(), and cosmoV_printError()

Errors are now handled very differently, parser errors and VM errors are now treated the same.
When cosmoV_error is called, cosmoV_throw is also called, which formats the error object and sets the panic state.
state->error now points to the latest CObjError when state->panic is true. To get a nice formatted Objection message, use
cosmoV_printError() and pass the state->error. pcall() was added to the standard base library. When called, the first argument
passed is called with the subsequent arguments given. If the call completed successfully, `true`,`nil` is returned. However
when an error occurs during the call, `false`,`<error>` is returned. Simply print the `<error>` to retrieve the error string.
This commit is contained in:
2021-01-05 22:27:59 -06:00
parent 417a1f15f1
commit eb2f50e456
13 changed files with 195 additions and 65 deletions

View File

@@ -8,5 +8,9 @@ COSMO_API void cosmoB_loadDebug(CState *state);
COSMO_API int cosmoB_print(CState *state, int nargs, CValue *args);
COSMO_API int cosmoB_assert(CState *state, int nargs, CValue *args);
COSMO_API int cosmoB_type(CState *state, int nargs, CValue *args);
COSMO_API int cosmoB_pcall(CState *state, int nargs, CValue *args);
#define cosmoV_typeError(state, name, expectedTypes, formatStr, ...) \
cosmoV_error(state, name " expected (" expectedTypes "), got (" formatStr ")!", __VA_ARGS__);
#endif