diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/mruby/irep.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/mruby/irep.h b/include/mruby/irep.h index 0a5b3f1a3..430602279 100644 --- a/include/mruby/irep.h +++ b/include/mruby/irep.h @@ -39,13 +39,31 @@ typedef struct mrb_pool_value { } u; } mrb_pool_value; +enum mrb_catch_type { + MRB_CATCH_RESCUE = 0, + MRB_CATCH_ENSURE = 1, +}; + +struct mrb_irep_catch_hander { + uint8_t type; /* enum mrb_catch_type */ + uint8_t begin[2]; /* The starting address to match the hander. Includes this. */ + uint8_t end[2]; /* The endpoint address that matches the hander. Not Includes this. */ + uint8_t target[2]; /* The address to jump to if a match is made. */ +}; + /* Program data array struct */ typedef struct mrb_irep { uint16_t nlocals; /* Number of local variables */ uint16_t nregs; /* Number of register variables */ + uint16_t clen; /* Number of catch handlers */ uint8_t flags; const mrb_code *iseq; + /* + * A catch handler table is placed after the iseq entity. + * The reason it doesn't add fields to the structure is to keep the mrb_irep structure from bloating. + * The catch handler table can be obtained with `mrb_irep_catch_handler_table(irep)`. + */ const mrb_pool_value *pool; const mrb_sym *syms; const struct mrb_irep * const *reps; @@ -107,6 +125,17 @@ struct mrb_insn_data { struct mrb_insn_data mrb_decode_insn(const mrb_code *pc); +static inline const struct mrb_irep_catch_hander * +mrb_irep_catch_handler_table(const struct mrb_irep *irep) +{ + if (irep->clen > 0) { + return (const struct mrb_irep_catch_hander *)(irep->iseq + irep->ilen); + } + else { + return (const struct mrb_irep_catch_hander *)NULL; + } +} + MRB_END_DECL #endif /* MRUBY_IREP_H */ |