Exemplo n.º 1
0
void
rb_threadptr_error_print(rb_thread_t *volatile th, volatile VALUE errinfo)
{
    volatile VALUE errat = Qundef;
    volatile int raised_flag = th->raised_flag;
    volatile VALUE eclass = Qundef, emesg = Qundef;

    if (NIL_P(errinfo))
	return;
    rb_thread_raised_clear(th);

    TH_PUSH_TAG(th);
    if (TH_EXEC_TAG() == 0) {
	errat = rb_get_backtrace(errinfo);
    }
    else if (errat == Qundef) {
	errat = Qnil;
    }
    else if (eclass == Qundef || emesg != Qundef) {
	goto error;
    }
    if ((eclass = CLASS_OF(errinfo)) != Qundef) {
	VALUE e = rb_check_funcall(errinfo, rb_intern("message"), 0, 0);
	if (e != Qundef) {
	    if (!RB_TYPE_P(e, T_STRING)) e = rb_check_string_type(e);
	    emesg = e;
	}
    }
    if (rb_stderr_tty_p()) {
	if (0) warn_print("Traceback (most recent call last):\n");
	print_backtrace(eclass, errat, TRUE);
	print_errinfo(eclass, errat, emesg);
    }
    else {
	print_errinfo(eclass, errat, emesg);
	print_backtrace(eclass, errat, FALSE);
    }
  error:
    TH_POP_TAG();
    th->errinfo = errinfo;
    rb_thread_raised_set(th, raised_flag);
}
Exemplo n.º 2
0
void
rb_threadptr_error_print(rb_thread_t *th, VALUE errinfo)
{
    volatile VALUE errat = Qundef;
    int raised_flag = th->raised_flag;
    volatile VALUE eclass = Qundef, e = Qundef;
    const char *volatile einfo;
    volatile long elen;
    VALUE mesg;

    if (NIL_P(errinfo))
	return;
    rb_thread_raised_clear(th);

    TH_PUSH_TAG(th);
    if (TH_EXEC_TAG() == 0) {
	errat = rb_get_backtrace(errinfo);
    }
    else if (errat == Qundef) {
	errat = Qnil;
    }
    else if (eclass == Qundef || e != Qundef) {
	goto error;
    }
    else {
	goto no_message;
    }
    if (NIL_P(errat) || RARRAY_LEN(errat) == 0 ||
	NIL_P(mesg = RARRAY_AREF(errat, 0))) {
	error_pos();
    }
    else {
	warn_print_str(mesg);
	warn_print(": ");
    }

    eclass = CLASS_OF(errinfo);
    if (eclass != Qundef &&
	(e = rb_check_funcall(errinfo, rb_intern("message"), 0, 0)) != Qundef &&
	(RB_TYPE_P(e, T_STRING) || !NIL_P(e = rb_check_string_type(e)))) {
	einfo = RSTRING_PTR(e);
	elen = RSTRING_LEN(e);
    }
    else {
      no_message:
	einfo = "";
	elen = 0;
    }
    if (eclass == rb_eRuntimeError && elen == 0) {
	warn_print("unhandled exception\n");
    }
    else {
	VALUE epath;

	epath = rb_class_name(eclass);
	if (elen == 0) {
	    warn_print_str(epath);
	    warn_print("\n");
	}
	else {
	    const char *tail = 0;
	    long len = elen;

	    if (RSTRING_PTR(epath)[0] == '#')
		epath = 0;
	    if ((tail = memchr(einfo, '\n', elen)) != 0) {
		len = tail - einfo;
		tail++;		/* skip newline */
	    }
	    warn_print_str(tail ? rb_str_subseq(e, 0, len) : e);
	    if (epath) {
		warn_print(" (");
		warn_print_str(epath);
		warn_print(")\n");
	    }
	    if (tail) {
		warn_print_str(rb_str_subseq(e, tail - einfo, elen - len - 1));
	    }
	    if (tail ? einfo[elen-1] != '\n' : !epath) warn_print2("\n", 1);
	}
    }

    if (!NIL_P(errat)) {
	long i;
	long len = RARRAY_LEN(errat);
        int skip = eclass == rb_eSysStackError;

#define TRACE_MAX (TRACE_HEAD+TRACE_TAIL+5)
#define TRACE_HEAD 8
#define TRACE_TAIL 5

	for (i = 1; i < len; i++) {
	    VALUE line = RARRAY_AREF(errat, i);
	    if (RB_TYPE_P(line, T_STRING)) {
		warn_print_str(rb_sprintf("\tfrom %"PRIsVALUE"\n", line));
	    }
	    if (skip && i == TRACE_HEAD && len > TRACE_MAX) {
		warn_print_str(rb_sprintf("\t ... %ld levels...\n",
					  len - TRACE_HEAD - TRACE_TAIL));
		i = len - TRACE_TAIL;
	    }
	}
    }
  error:
    TH_POP_TAG();
    th->errinfo = errinfo;
    rb_thread_raised_set(th, raised_flag);
}
Exemplo n.º 3
0
/*RHO static*/ VALUE
eval_string_with_cref(VALUE self, VALUE src, VALUE scope, NODE *cref, const char *file, int line)
{
    int state;
    VALUE result = Qundef;
    VALUE envval;
    rb_binding_t *bind = 0;
    rb_thread_t *th = GET_THREAD();
    rb_env_t *env = NULL;
    rb_block_t block;
    volatile int parse_in_eval;
    volatile int mild_compile_error;

    if (file == 0) {
	file = rb_sourcefile();
	line = rb_sourceline();
    }

    parse_in_eval = th->parse_in_eval;
    mild_compile_error = th->mild_compile_error;
    PUSH_TAG();
    if ((state = EXEC_TAG()) == 0) {
	rb_iseq_t *iseq;
	volatile VALUE iseqval;

	if (scope != Qnil) {
	    if (rb_obj_is_kind_of(scope, rb_cBinding)) {
		GetBindingPtr(scope, bind);
		envval = bind->env;
	    }
	    else {
		rb_raise(rb_eTypeError,
			 "wrong argument type %s (expected Binding)",
			 rb_obj_classname(scope));
	    }
	    GetEnvPtr(envval, env);
	    th->base_block = &env->block;
	}
	else {
	    rb_control_frame_t *cfp = rb_vm_get_ruby_level_next_cfp(th, th->cfp);

	    if (cfp != 0) {
		block = *RUBY_VM_GET_BLOCK_PTR_IN_CFP(cfp);
		th->base_block = &block;
		th->base_block->self = self;
		th->base_block->iseq = cfp->iseq;	/* TODO */
	    }
	    else {
		rb_raise(rb_eRuntimeError, "Can't eval on top of Fiber or Thread");
	    }
	}

    //RHO
    if ( TYPE(src) != T_STRING ){
        iseqval = src;
    }else
    //RHO
    {
	    /* make eval iseq */
	    th->parse_in_eval++;
	    th->mild_compile_error++;
	    iseqval = rb_iseq_compile(src, rb_str_new2(file), INT2FIX(line));
	    th->mild_compile_error--;
	    th->parse_in_eval--;
    }

	vm_set_eval_stack(th, iseqval, cref);
	th->base_block = 0;

	if (0) {		/* for debug */
	    printf("%s\n", RSTRING_PTR(rb_iseq_disasm(iseqval)));
	}

	/* save new env */
	GetISeqPtr(iseqval, iseq);
	if (bind && iseq->local_size > 0) {
	    bind->env = rb_vm_make_env_object(th, th->cfp);
	}

	/* kick */
	CHECK_STACK_OVERFLOW(th->cfp, iseq->stack_max);
	result = vm_exec(th);
    }
    POP_TAG();
    th->mild_compile_error = mild_compile_error;
    th->parse_in_eval = parse_in_eval;

    if (state) {
	if (state == TAG_RAISE) {
	    VALUE errinfo = th->errinfo;
	    if (strcmp(file, "(eval)") == 0) {
		VALUE mesg, errat, bt2;
		extern VALUE rb_get_backtrace(VALUE info);
		ID id_mesg;

		CONST_ID(id_mesg, "mesg");
		errat = rb_get_backtrace(errinfo);
		mesg = rb_attr_get(errinfo, id_mesg);
		if (!NIL_P(errat) && TYPE(errat) == T_ARRAY &&
		    (bt2 = vm_backtrace(th, -2), RARRAY_LEN(bt2) > 0)) {
		    if (!NIL_P(mesg) && TYPE(mesg) == T_STRING && !RSTRING_LEN(mesg)) {
			if (OBJ_FROZEN(mesg)) {
			    VALUE m = rb_str_cat(rb_str_dup(RARRAY_PTR(errat)[0]), ": ", 2);
			    rb_ivar_set(errinfo, id_mesg, rb_str_append(m, mesg));
			}
			else {
			    rb_str_update(mesg, 0, 0, rb_str_new2(": "));
			    rb_str_update(mesg, 0, 0, RARRAY_PTR(errat)[0]);
			}
		    }
		    RARRAY_PTR(errat)[0] = RARRAY_PTR(bt2)[0];
		}
	    }
	    rb_exc_raise(errinfo);
	}
	JUMP_TAG(state);
    }
    return result;
}