mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Yukihiro "Matz" Matsumoto
8a87549315
- `MRB_WITHOUT_FLOAT` => `MRB_NO_FLOAT` - `MRB_USE_FLOAT` => `MRB_USE_FLOAT32` The former is to use `USE_XXX` naming convention. The latter is to make sure `float` is 32bit float and not floating point number in general.
137 lines
3.7 KiB
C
137 lines
3.7 KiB
C
/**
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** @file mruby/error.h - Exception class
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**
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** See Copyright Notice in mruby.h
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*/
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#ifndef MRUBY_ERROR_H
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#define MRUBY_ERROR_H
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#include "common.h"
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/**
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* MRuby error handling.
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*/
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MRB_BEGIN_DECL
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struct RException {
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MRB_OBJECT_HEADER;
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struct iv_tbl *iv;
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};
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#define mrb_exc_ptr(v) ((struct RException*)mrb_ptr(v))
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MRB_API void mrb_sys_fail(mrb_state *mrb, const char *mesg);
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MRB_API mrb_value mrb_exc_new_str(mrb_state *mrb, struct RClass* c, mrb_value str);
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#define mrb_exc_new_str_lit(mrb, c, lit) mrb_exc_new_str(mrb, c, mrb_str_new_lit(mrb, lit))
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MRB_API mrb_value mrb_make_exception(mrb_state *mrb, mrb_int argc, const mrb_value *argv);
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MRB_API mrb_value mrb_exc_backtrace(mrb_state *mrb, mrb_value exc);
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MRB_API mrb_value mrb_get_backtrace(mrb_state *mrb);
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MRB_API mrb_noreturn void mrb_no_method_error(mrb_state *mrb, mrb_sym id, mrb_value args, const char *fmt, ...);
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/* declaration for `fail` method */
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MRB_API mrb_value mrb_f_raise(mrb_state*, mrb_value);
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#if defined(MRB_64BIT) || defined(MRB_USE_FLOAT32) || defined(MRB_NAN_BOXING) || defined(MRB_WORD_BOXING)
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struct RBreak {
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MRB_OBJECT_HEADER;
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const struct RProc *proc;
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mrb_value val;
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};
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#define mrb_break_value_get(brk) ((brk)->val)
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#define mrb_break_value_set(brk, v) ((brk)->val = v)
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#else
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struct RBreak {
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MRB_OBJECT_HEADER;
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const struct RProc *proc;
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union mrb_value_union value;
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};
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#define RBREAK_VALUE_TT_MASK ((1 << 8) - 1)
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static inline mrb_value
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mrb_break_value_get(struct RBreak *brk)
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{
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mrb_value val;
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val.value = brk->value;
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val.tt = (enum mrb_vtype)(brk->flags & RBREAK_VALUE_TT_MASK);
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return val;
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}
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static inline void
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mrb_break_value_set(struct RBreak *brk, mrb_value val)
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{
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brk->value = val.value;
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brk->flags &= ~RBREAK_VALUE_TT_MASK;
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brk->flags |= val.tt;
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}
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#endif /* MRB_64BIT || MRB_USE_FLOAT32 || MRB_NAN_BOXING || MRB_WORD_BOXING */
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#define mrb_break_proc_get(brk) ((brk)->proc)
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#define mrb_break_proc_set(brk, p) ((brk)->proc = p)
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#define RBREAK_TAG_FOREACH(f) \
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f(RBREAK_TAG_BREAK, 0) \
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f(RBREAK_TAG_BREAK_UPPER, 1) \
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f(RBREAK_TAG_BREAK_INTARGET, 2) \
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f(RBREAK_TAG_RETURN_BLOCK, 3) \
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f(RBREAK_TAG_RETURN, 4) \
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f(RBREAK_TAG_RETURN_TOPLEVEL, 5) \
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f(RBREAK_TAG_JUMP, 6) \
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f(RBREAK_TAG_STOP, 7)
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#define RBREAK_TAG_DEFINE(tag, i) tag = i,
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enum {
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RBREAK_TAG_FOREACH(RBREAK_TAG_DEFINE)
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};
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#undef RBREAK_TAG_DEFINE
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#define RBREAK_TAG_BIT 3
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#define RBREAK_TAG_BIT_OFF 8
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#define RBREAK_TAG_MASK (~(~UINT32_C(0) << RBREAK_TAG_BIT))
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static inline uint32_t
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mrb_break_tag_get(struct RBreak *brk)
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{
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return (brk->flags >> RBREAK_TAG_BIT_OFF) & RBREAK_TAG_MASK;
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}
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static inline void
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mrb_break_tag_set(struct RBreak *brk, uint32_t tag)
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{
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brk->flags &= ~(RBREAK_TAG_MASK << RBREAK_TAG_BIT_OFF);
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brk->flags |= (tag & RBREAK_TAG_MASK) << RBREAK_TAG_BIT_OFF;
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}
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/**
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* Protect
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*
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* Implemented in the mruby-error mrbgem
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*/
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MRB_API mrb_value mrb_protect(mrb_state *mrb, mrb_func_t body, mrb_value data, mrb_bool *state);
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/**
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* Ensure
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*
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* Implemented in the mruby-error mrbgem
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*/
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MRB_API mrb_value mrb_ensure(mrb_state *mrb, mrb_func_t body, mrb_value b_data,
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mrb_func_t ensure, mrb_value e_data);
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/**
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* Rescue
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*
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* Implemented in the mruby-error mrbgem
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*/
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MRB_API mrb_value mrb_rescue(mrb_state *mrb, mrb_func_t body, mrb_value b_data,
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mrb_func_t rescue, mrb_value r_data);
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/**
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* Rescue exception
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*
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* Implemented in the mruby-error mrbgem
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*/
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MRB_API mrb_value mrb_rescue_exceptions(mrb_state *mrb, mrb_func_t body, mrb_value b_data,
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mrb_func_t rescue, mrb_value r_data,
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mrb_int len, struct RClass **classes);
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MRB_END_DECL
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#endif /* MRUBY_ERROR_H */
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