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#include <mruby.h>
#include <mruby/throw.h>
#include <mruby/error.h>
MRB_API mrb_value
mrb_protect(mrb_state *mrb, mrb_func_t body, mrb_value data, mrb_bool *state)
{
struct mrb_jmpbuf *prev_jmp = mrb->jmp;
struct mrb_jmpbuf c_jmp;
mrb_value result = mrb_nil_value();
if (state) { *state = FALSE; }
MRB_TRY(&c_jmp) {
mrb->jmp = &c_jmp;
result = body(mrb, data);
mrb->jmp = prev_jmp;
} MRB_CATCH(&c_jmp) {
mrb->jmp = prev_jmp;
result = mrb_obj_value(mrb->exc);
mrb->exc = NULL;
if (state) { *state = TRUE; }
} MRB_END_EXC(&c_jmp);
mrb_gc_protect(mrb, result);
return result;
}
MRB_API mrb_value
mrb_ensure(mrb_state *mrb, mrb_func_t body, mrb_value b_data, mrb_func_t ensure, mrb_value e_data)
{
struct mrb_jmpbuf *prev_jmp = mrb->jmp;
struct mrb_jmpbuf c_jmp;
mrb_value result;
MRB_TRY(&c_jmp) {
mrb->jmp = &c_jmp;
result = body(mrb, b_data);
mrb->jmp = prev_jmp;
} MRB_CATCH(&c_jmp) {
mrb->jmp = prev_jmp;
ensure(mrb, e_data);
MRB_THROW(mrb->jmp); /* rethrow catched exceptions */
} MRB_END_EXC(&c_jmp);
ensure(mrb, e_data);
mrb_gc_protect(mrb, result);
return result;
}
MRB_API mrb_value
mrb_rescue(mrb_state *mrb, mrb_func_t body, mrb_value b_data,
mrb_func_t rescue, mrb_value r_data)
{
return mrb_rescue_exceptions(mrb, body, b_data, rescue, r_data, 1, &mrb->eStandardError_class);
}
MRB_API mrb_value
mrb_rescue_exceptions(mrb_state *mrb, mrb_func_t body, mrb_value b_data, mrb_func_t rescue, mrb_value r_data,
mrb_int len, struct RClass **classes)
{
struct mrb_jmpbuf *prev_jmp = mrb->jmp;
struct mrb_jmpbuf c_jmp;
mrb_value result;
mrb_bool error_matched = FALSE;
mrb_int i;
MRB_TRY(&c_jmp) {
mrb->jmp = &c_jmp;
result = body(mrb, b_data);
mrb->jmp = prev_jmp;
} MRB_CATCH(&c_jmp) {
mrb->jmp = prev_jmp;
for (i = 0; i < len; ++i) {
if (mrb_obj_is_kind_of(mrb, mrb_obj_value(mrb->exc), classes[i])) {
error_matched = TRUE;
break;
}
}
if (!error_matched) { MRB_THROW(mrb->jmp); }
mrb->exc = NULL;
result = rescue(mrb, r_data);
} MRB_END_EXC(&c_jmp);
mrb_gc_protect(mrb, result);
return result;
}
void
mrb_mruby_error_gem_init(mrb_state *mrb)
{
}
void
mrb_mruby_error_gem_final(mrb_state *mrb)
{
}
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