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Refactor out rb_decorate_message from print_errinfo 

rb_decorate_message adds bold escape sequences to message, and the class
name of exception (like " (RuntimeError)) of "message (RuntimeError)").
This commit is contained in:
Yusuke Endoh 2022-02-01 17:03:58 +09:00
Родитель f207f7a193
Коммит 3af316fa8c
1 изменённых файлов: 49 добавлений и 20 удалений
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69
eval_error.c
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@ -89,24 +89,20 @@ static const char reset[] = CSI_BEGIN""CSI_SGR;
static void
print_errinfo(const VALUE eclass, const VALUE errat, const VALUE emesg, const VALUE str, int highlight)
{
const char *einfo = "";
long elen = 0;
VALUE mesg;
if (emesg != Qundef) {
if (NIL_P(errat) || RARRAY_LEN(errat) == 0 ||
NIL_P(mesg = RARRAY_AREF(errat, 0))) {
error_pos(str);
}
else {
write_warn_str(str, mesg);
write_warn(str, ": ");
}
if (NIL_P(errat) || RARRAY_LEN(errat) == 0 ||
NIL_P(mesg = RARRAY_AREF(errat, 0))) {
error_pos(str);
}
else {
write_warn_str(str, mesg);
write_warn(str, ": ");
}
if (!NIL_P(emesg)) {
einfo = RSTRING_PTR(emesg);
elen = RSTRING_LEN(emesg);
}
if (!NIL_P(emesg)) {
elen = RSTRING_LEN(emesg);
}
if (eclass == rb_eRuntimeError && elen == 0) {
@ -125,6 +121,39 @@ print_errinfo(const VALUE eclass, const VALUE errat, const VALUE emesg, const VA
if (highlight) write_warn(str, reset);
write_warn(str, "\n");
}
else {
write_warn_str(str, emesg);
write_warn(str, "\n");
}
}
}
VALUE
rb_decorate_message(const VALUE eclass, const VALUE emesg, int highlight)
{
const char *einfo = "";
long elen = 0;
VALUE str = rb_str_new2("");
if (!NIL_P(emesg)) {
einfo = RSTRING_PTR(emesg);
elen = RSTRING_LEN(emesg);
}
if (eclass == rb_eRuntimeError && elen == 0) {
if (highlight) write_warn(str, underline);
write_warn(str, "unhandled exception");
if (highlight) write_warn(str, reset);
}
else {
VALUE epath;
epath = rb_class_name(eclass);
if (elen == 0) {
if (highlight) write_warn(str, underline);
write_warn_str(str, epath);
if (highlight) write_warn(str, reset);
}
else {
/* emesg is a String instance */
const char *tail = 0;
@ -149,25 +178,24 @@ print_errinfo(const VALUE eclass, const VALUE errat, const VALUE emesg, const VA
}
write_warn2(str, ")", 1);
if (highlight) write_warn(str, reset);
write_warn2(str, "\n", 1);
}
if (tail && einfo+elen > tail) {
if (!highlight) {
write_warn2(str, "\n", 1);
write_warn2(str, tail, einfo+elen-tail);
if (einfo[elen-1] != '\n') write_warn2(str, "\n", 1);
}
else {
elen -= tail - einfo;
einfo = tail;
write_warn2(str, "\n", 1);
while (elen > 0) {
write_warn2(str, "\n", 1);
tail = memchr(einfo, '\n', elen);
if (!tail || tail > einfo) {
write_warn(str, bold);
write_warn2(str, einfo, tail ? tail-einfo : elen);
write_warn(str, reset);
if (!tail) {
write_warn2(str, "\n", 1);
break;
}
}
@ -180,11 +208,10 @@ print_errinfo(const VALUE eclass, const VALUE errat, const VALUE emesg, const VA
}
}
}
else if (!epath) {
write_warn2(str, "\n", 1);
}
}
}
return str;
}
static void
@ -257,6 +284,7 @@ show_cause(VALUE errinfo, VALUE str, VALUE highlight, VALUE reverse, long backtr
volatile VALUE eclass = CLASS_OF(cause);
VALUE errat = rb_get_backtrace(cause);
VALUE emesg = rb_get_message(cause);
emesg = rb_decorate_message(eclass, emesg, RTEST(highlight));
if (reverse) {
show_cause(cause, str, highlight, reverse, backtrace_limit, shown_causes);
print_backtrace(eclass, errat, str, TRUE, backtrace_limit);
@ -284,6 +312,7 @@ rb_error_write(VALUE errinfo, VALUE emesg, VALUE errat, VALUE str, VALUE highlig
errat = Qnil;
}
eclass = CLASS_OF(errinfo);
emesg = rb_decorate_message(eclass, emesg, RTEST(highlight));
if (reverse) {
static const char traceback[] = "Traceback "
"(most recent call last):\n";