void layout_dup(MessageLayout* layout, void* to, void* from) {
upb_msg_field_iter it;
for (upb_msg_field_begin(&it, layout->msgdef);
!upb_msg_field_done(&it);
upb_msg_field_next(&it)) {
const upb_fielddef* field = upb_msg_iter_field(&it);
void* to_memory = slot_memory(layout, to, field);
uint32_t* to_oneof_case = slot_oneof_case(layout, to, field);
void* from_memory = slot_memory(layout, from, field);
uint32_t* from_oneof_case = slot_oneof_case(layout, from, field);
if (upb_fielddef_containingoneof(field)) {
if (*from_oneof_case == upb_fielddef_number(field)) {
*to_oneof_case = *from_oneof_case;
native_slot_dup(upb_fielddef_type(field), to_memory, from_memory);
}
} else if (is_map_field(field)) {
DEREF(to_memory, VALUE) = Map_dup(DEREF(from_memory, VALUE));
} else if (upb_fielddef_label(field) == UPB_LABEL_REPEATED) {
DEREF(to_memory, VALUE) = RepeatedField_dup(DEREF(from_memory, VALUE));
} else {
if (field_contains_hasbit(layout, field)) {
if (!slot_is_hasbit_set(layout, from, field)) continue;
slot_set_hasbit(layout, to, field);
}
native_slot_dup(upb_fielddef_type(field), to_memory, from_memory);
}
}
}
/*
* call-seq:
* RepeatedField.+(other) => repeated field
*
* Returns a new repeated field that contains the concatenated list of this
* repeated field's elements and other's elements. The other (second) list may
* be either another repeated field or a Ruby array.
*/
VALUE RepeatedField_plus(VALUE _self, VALUE list) {
VALUE dupped = RepeatedField_dup(_self);
if (TYPE(list) == T_ARRAY) {
for (int i = 0; i < RARRAY_LEN(list); i++) {
VALUE elem = rb_ary_entry(list, i);
RepeatedField_push(dupped, elem);
}
} else if (RB_TYPE_P(list, T_DATA) && RTYPEDDATA_P(list) &&
RTYPEDDATA_TYPE(list) == &RepeatedField_type) {
RepeatedField* self = ruby_to_RepeatedField(_self);
RepeatedField* list_rptfield = ruby_to_RepeatedField(list);
if (self->field_type != list_rptfield->field_type ||
self->field_type_class != list_rptfield->field_type_class) {
rb_raise(rb_eArgError,
"Attempt to append RepeatedField with different element type.");
}
for (int i = 0; i < list_rptfield->size; i++) {
void* mem = RepeatedField_index_native(list, i);
RepeatedField_push_native(dupped, mem);
}
} else {
rb_raise(rb_eArgError, "Unknown type appending to RepeatedField");
}
return dupped;
}
