static bool upb_fielddef_resolve(upb_fielddef *f, upb_def *def, upb_status *s) {
assert(upb_dyncast_unresolveddef(f->def));
upb_def_unref(f->def);
f->def = def;
if (f->type == UPB_TYPE(ENUM) && f->default_is_symbolic) {
// Resolve the enum's default from a string to an integer.
upb_byteregion *bytes = upb_value_getbyteregion(f->defaultval);
assert(bytes); // Points to either a real default or the empty string.
upb_enumdef *e = upb_downcast_enumdef(f->def);
int32_t val = 0;
// Could do a sanity check that the default value does not have embedded
// NULLs.
if (upb_byteregion_len(bytes) == 0) {
upb_value_setint32(&f->defaultval, e->defaultval);
} else {
size_t len;
// ptr is guaranteed to be NULL-terminated because the byteregion was
// created with upb_byteregion_newl().
const char *ptr = upb_byteregion_getptr(bytes, 0, &len);
assert(len == upb_byteregion_len(bytes)); // Should all be in one chunk.
bool success = upb_enumdef_ntoi(e, ptr, &val);
if (!success) {
upb_status_seterrf(
s, "Default enum value (%s) is not a member of the enum", ptr);
return false;
}
upb_value_setint32(&f->defaultval, val);
}
upb_byteregion_free(bytes);
}
return true;
}
bool upb_fielddef_resolvedefault(upb_fielddef *f) {
if (!upb_fielddef_default_is_symbolic(f)) return true;
upb_byteregion *bytes = upb_value_getbyteregion(f->defaultval);
const upb_enumdef *e = upb_downcast_enumdef(upb_fielddef_subdef(f));
assert(bytes); // Points to either a real default or the empty string.
assert(e);
if (upb_byteregion_len(bytes) == 0) {
// The "default default" for an enum is the first defined value.
upb_value_setint32(&f->defaultval, e->defaultval);
} else {
size_t len;
int32_t val = 0;
// ptr is guaranteed to be NULL-terminated because the byteregion was
// created with upb_byteregion_newl().
const char *ptr = upb_byteregion_getptr(
bytes, upb_byteregion_startofs(bytes), &len);
assert(len == upb_byteregion_len(bytes)); // Should all be in one chunk
if (!upb_enumdef_ntoi(e, ptr, &val)) {
return false;
}
upb_value_setint32(&f->defaultval, val);
}
f->default_is_string = false;
upb_byteregion_free(bytes);
return true;
}
void upb_fielddef_setdefaultstr(upb_fielddef *f, const void *str, size_t len) {
assert(upb_isstring(f) || f->type == UPB_TYPE(ENUM));
upb_byteregion *bytes = upb_value_getbyteregion(f->defaultval);
assert(bytes);
upb_byteregion_free(bytes);
upb_value_setbyteregion(&f->defaultval, upb_byteregion_newl(str, len));
f->default_is_symbolic = true;
}
void upb_fielddef_setdefault(upb_fielddef *f, upb_value value) {
assert(!upb_fielddef_isfrozen(f));
assert(!upb_fielddef_isstring(f) && !upb_fielddef_issubmsg(f));
if (f->default_is_string) {
upb_byteregion *bytes = upb_value_getbyteregion(f->defaultval);
assert(bytes);
upb_byteregion_free(bytes);
}
f->defaultval = value;
f->default_is_string = false;
}
bool upb_fielddef_setdefaultstr(upb_fielddef *f, const void *str, size_t len) {
assert(upb_fielddef_isstring(f) || f->type_ == UPB_TYPE(ENUM));
if (f->type_ == UPB_TYPE(ENUM) && !upb_isident(str, len, false)) return false;
if (f->default_is_string) {
upb_byteregion *bytes = upb_value_getbyteregion(f->defaultval);
assert(bytes);
upb_byteregion_free(bytes);
} else {
assert(f->type_ == UPB_TYPE(ENUM));
}
upb_byteregion *r = upb_byteregion_newl(str, len);
upb_value_setbyteregion(&f->defaultval, r);
upb_bytesuccess_t ret = upb_byteregion_fetch(r);
UPB_ASSERT_VAR(ret, ret == (len == 0 ? UPB_BYTE_EOF : UPB_BYTE_OK));
assert(upb_byteregion_available(r, 0) == upb_byteregion_len(r));
f->default_is_string = true;
return true;
}
static void upb_fielddef_uninit_default(upb_fielddef *f) {
if (upb_isstring(f) || f->default_is_symbolic) {
upb_byteregion_free(upb_value_getbyteregion(f->defaultval));
}
}
static void upb_fielddef_uninit_default(upb_fielddef *f) {
if (f->default_is_string)
upb_byteregion_free(upb_value_getbyteregion(f->defaultval));
}
