int Message_initialize_kwarg(VALUE key, VALUE val, VALUE _self) {
MessageHeader* self;
char *name;
const upb_fielddef* f;
TypedData_Get_Struct(_self, MessageHeader, &Message_type, self);
if (TYPE(key) == T_STRING) {
name = RSTRING_PTR(key);
} else if (TYPE(key) == T_SYMBOL) {
name = RSTRING_PTR(rb_id2str(SYM2ID(key)));
} else {
rb_raise(rb_eArgError,
"Expected string or symbols as hash keys when initializing proto from hash.");
}
f = upb_msgdef_ntofz(self->descriptor->msgdef, name);
if (f == NULL) {
rb_raise(rb_eArgError,
"Unknown field name '%s' in initialization map entry.", name);
}
if (TYPE(val) == T_NIL) {
return 0;
}
if (is_map_field(f)) {
VALUE map;
if (TYPE(val) != T_HASH) {
rb_raise(rb_eArgError,
"Expected Hash object as initializer value for map field '%s'.", name);
}
map = layout_get(self->descriptor->layout, Message_data(self), f);
Map_merge_into_self(map, val);
} else if (upb_fielddef_label(f) == UPB_LABEL_REPEATED) {
VALUE ary;
if (TYPE(val) != T_ARRAY) {
rb_raise(rb_eArgError,
"Expected array as initializer value for repeated field '%s'.", name);
}
ary = layout_get(self->descriptor->layout, Message_data(self), f);
for (int i = 0; i < RARRAY_LEN(val); i++) {
VALUE entry = rb_ary_entry(val, i);
if (TYPE(entry) == T_HASH && upb_fielddef_issubmsg(f)) {
entry = create_submsg_from_hash(f, entry);
}
RepeatedField_push(ary, entry);
}
} else {
if (TYPE(val) == T_HASH && upb_fielddef_issubmsg(f)) {
val = create_submsg_from_hash(f, val);
}
layout_set(self->descriptor->layout, Message_data(self), f, val);
}
return 0;
}
/*
* call-seq:
* Descriptor.lookup(name) => FieldDescriptor
*
* Returns the field descriptor for the field with the given name, if present,
* or nil if none.
*/
VALUE Descriptor_lookup(VALUE _self, VALUE name) {
DEFINE_SELF(Descriptor, self, _self);
const char* s = get_str(name);
const upb_fielddef* field = upb_msgdef_ntofz(self->msgdef, s);
if (field == NULL) {
return Qnil;
}
return get_def_obj(field);
}
/*
* call-seq:
* Message.[](index) => value
*
* Accesses a field's value by field name. The provided field name should be a
* string.
*/
VALUE Message_index(VALUE _self, VALUE field_name) {
MessageHeader* self;
TypedData_Get_Struct(_self, MessageHeader, &Message_type, self);
Check_Type(field_name, T_STRING);
const upb_fielddef* field =
upb_msgdef_ntofz(self->descriptor->msgdef, RSTRING_PTR(field_name));
if (field == NULL) {
return Qnil;
}
return layout_get(self->descriptor->layout, Message_data(self), field);
}
/*
* call-seq:
* Message.[]=(index, value)
*
* Sets a field's value by field name. The provided field name should be a
* string.
*/
VALUE Message_index_set(VALUE _self, VALUE field_name, VALUE value) {
MessageHeader* self;
TypedData_Get_Struct(_self, MessageHeader, &Message_type, self);
Check_Type(field_name, T_STRING);
const upb_fielddef* field =
upb_msgdef_ntofz(self->descriptor->msgdef, RSTRING_PTR(field_name));
if (field == NULL) {
rb_raise(rb_eArgError, "Unknown field: %s", RSTRING_PTR(field_name));
}
layout_set(self->descriptor->layout, Message_data(self), field, value);
return Qnil;
}
int Message_initialize_kwarg(VALUE key, VALUE val, VALUE _self) {
MessageHeader* self;
VALUE method_str;
char* name;
const upb_fielddef* f;
TypedData_Get_Struct(_self, MessageHeader, &Message_type, self);
if (!SYMBOL_P(key)) {
rb_raise(rb_eArgError,
"Expected symbols as hash keys in initialization map.");
}
method_str = rb_id2str(SYM2ID(key));
name = RSTRING_PTR(method_str);
f = upb_msgdef_ntofz(self->descriptor->msgdef, name);
if (f == NULL) {
rb_raise(rb_eArgError,
"Unknown field name '%s' in initialization map entry.", name);
}
if (is_map_field(f)) {
VALUE map;
if (TYPE(val) != T_HASH) {
rb_raise(rb_eArgError,
"Expected Hash object as initializer value for map field '%s'.", name);
}
map = layout_get(self->descriptor->layout, Message_data(self), f);
Map_merge_into_self(map, val);
} else if (upb_fielddef_label(f) == UPB_LABEL_REPEATED) {
VALUE ary;
if (TYPE(val) != T_ARRAY) {
rb_raise(rb_eArgError,
"Expected array as initializer value for repeated field '%s'.", name);
}
ary = layout_get(self->descriptor->layout, Message_data(self), f);
for (int i = 0; i < RARRAY_LEN(val); i++) {
RepeatedField_push(ary, rb_ary_entry(val, i));
}
} else {
layout_set(self->descriptor->layout, Message_data(self), f, val);
}
return 0;
}
static void test_cycles() {
bool ok;
upb_symtab *s = load_test_proto(&s);
const upb_msgdef *m;
const upb_fielddef *f;
const upb_def *def;
const upb_def *def2;
/* Test cycle detection by making a cyclic def's main refcount go to zero
* and then be incremented to one again. */
def = upb_symtab_lookup(s, "A");
upb_def_ref(def, &def);
ASSERT(def);
ASSERT(upb_def_isfrozen(def));
upb_symtab_unref(s, &s);
/* Message A has only one subfield: "optional B b = 1". */
m = upb_downcast_msgdef(def);
f = upb_msgdef_itof(m, 1);
ASSERT(f);
ASSERT(upb_fielddef_hassubdef(f));
ASSERT(upb_msgdef_ntofz(m, "b") == f);
ASSERT(upb_msgdef_ntof(m, "b", 1) == f);
def2 = upb_fielddef_subdef(f);
ASSERT(upb_downcast_msgdef(def2));
ok = strcmp(upb_def_fullname(def2), "B") == 0;
ASSERT(ok);
upb_def_ref(def2, &def2);
upb_def_unref(def, &def);
/* We know "def" is still alive because it's reachable from def2. */
ok = strcmp(upb_def_fullname(def), "A") == 0;
ASSERT(ok);
upb_def_unref(def2, &def2);
}
