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protobuf/ruby/ext/google/protobuf_c/defs.c

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// Protocol Buffers - Google's data interchange format
// Copyright 2014 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <ctype.h>
#include <errno.h>
#include "protobuf.h"
// -----------------------------------------------------------------------------
// Common utilities.
// -----------------------------------------------------------------------------
static const char* get_str(VALUE str) {
Check_Type(str, T_STRING);
return RSTRING_PTR(str);
}
static VALUE rb_str_maybe_null(const char* s) {
if (s == NULL) {
s = "";
}
return rb_str_new2(s);
}
static void rewrite_enum_default(const upb_symtab* symtab,
google_protobuf_FileDescriptorProto* file,
google_protobuf_FieldDescriptorProto* field) {
upb_strview defaultval;
const char *type_name_str;
char *end;
long val;
const upb_enumdef *e;
upb_strview type_name;
/* Look for TYPE_ENUM fields that have a default. */
if (google_protobuf_FieldDescriptorProto_type(field) !=
google_protobuf_FieldDescriptorProto_TYPE_ENUM ||
!google_protobuf_FieldDescriptorProto_has_default_value(field) ||
!google_protobuf_FieldDescriptorProto_has_type_name(field)) {
return;
}
defaultval = google_protobuf_FieldDescriptorProto_default_value(field);
type_name = google_protobuf_FieldDescriptorProto_type_name(field);
if (defaultval.size == 0 || !isdigit(defaultval.data[0])) {
return;
}
if (type_name.size == 0 || type_name.data[0] != '.') {
return;
}
type_name_str = type_name.data + 1;
errno = 0;
val = strtol(defaultval.data, &end, 10);
if (errno != 0 || *end != 0 || val < INT32_MIN || val > INT32_MAX) {
return;
}
/* Now find the corresponding enum definition. */
e = upb_symtab_lookupenum(symtab, type_name_str);
if (e) {
/* Look in previously loaded files. */
const char *label = upb_enumdef_iton(e, val);
if (!label) {
return;
}
google_protobuf_FieldDescriptorProto_set_default_value(
field, upb_strview_makez(label));
} else {
/* Look in enums defined in this file. */
const google_protobuf_EnumDescriptorProto* matching_enum = NULL;
size_t i, n;
const google_protobuf_EnumDescriptorProto* const* enums =
google_protobuf_FileDescriptorProto_enum_type(file, &n);
const google_protobuf_EnumValueDescriptorProto* const* values;
for (i = 0; i < n; i++) {
if (upb_strview_eql(google_protobuf_EnumDescriptorProto_name(enums[i]),
upb_strview_makez(type_name_str))) {
matching_enum = enums[i];
break;
}
}
if (!matching_enum) {
return;
}
values = google_protobuf_EnumDescriptorProto_value(matching_enum, &n);
for (i = 0; i < n; i++) {
if (google_protobuf_EnumValueDescriptorProto_number(values[i]) == val) {
google_protobuf_FieldDescriptorProto_set_default_value(
field, google_protobuf_EnumValueDescriptorProto_name(values[i]));
return;
}
}
/* We failed to find an enum default. But we'll just leave the enum
* untouched and let the normal def-building code catch it. */
}
}
/* Historically we allowed enum defaults to be specified as a number. In
* retrospect this was a mistake as descriptors require defaults to be
* specified as a label. This can make a difference if multiple labels have the
* same number.
*
* Here we do a pass over all enum defaults and rewrite numeric defaults by
* looking up their labels. This is complicated by the fact that the enum
* definition can live in either the symtab or the file_proto.
* */
static void rewrite_enum_defaults(
const upb_symtab* symtab, google_protobuf_FileDescriptorProto* file_proto) {
size_t i, n;
google_protobuf_DescriptorProto** msgs =
google_protobuf_FileDescriptorProto_mutable_message_type(file_proto, &n);
for (i = 0; i < n; i++) {
size_t j, m;
google_protobuf_FieldDescriptorProto** fields =
google_protobuf_DescriptorProto_mutable_field(msgs[i], &m);
for (j = 0; j < m; j++) {
rewrite_enum_default(symtab, file_proto, fields[j]);
}
}
}
static void remove_path(upb_strview *name) {
const char* last = strrchr(name->data, '.');
if (last) {
size_t remove = last - name->data + 1;
name->data += remove;
name->size -= remove;
}
}
static void rewrite_nesting(VALUE msg_ent, google_protobuf_DescriptorProto* msg,
google_protobuf_DescriptorProto* const* msgs,
google_protobuf_EnumDescriptorProto* const* enums,
upb_arena *arena) {
VALUE submsgs = rb_hash_aref(msg_ent, ID2SYM(rb_intern("msgs")));
VALUE enum_pos = rb_hash_aref(msg_ent, ID2SYM(rb_intern("enums")));
int submsg_count;
int enum_count;
int i;
google_protobuf_DescriptorProto** msg_msgs;
google_protobuf_EnumDescriptorProto** msg_enums;
Check_Type(submsgs, T_ARRAY);
Check_Type(enum_pos, T_ARRAY);
submsg_count = RARRAY_LEN(submsgs);
enum_count = RARRAY_LEN(enum_pos);
msg_msgs = google_protobuf_DescriptorProto_resize_nested_type(
msg, submsg_count, arena);
msg_enums =
google_protobuf_DescriptorProto_resize_enum_type(msg, enum_count, arena);
for (i = 0; i < submsg_count; i++) {
VALUE submsg_ent = RARRAY_PTR(submsgs)[i];
VALUE pos = rb_hash_aref(submsg_ent, ID2SYM(rb_intern("pos")));
upb_strview name;
msg_msgs[i] = msgs[NUM2INT(pos)];
name = google_protobuf_DescriptorProto_name(msg_msgs[i]);
remove_path(&name);
google_protobuf_DescriptorProto_set_name(msg_msgs[i], name);
rewrite_nesting(submsg_ent, msg_msgs[i], msgs, enums, arena);
}
for (i = 0; i < enum_count; i++) {
VALUE pos = RARRAY_PTR(enum_pos)[i];
msg_enums[i] = enums[NUM2INT(pos)];
}
}
/* We have to do some relatively complicated logic here for backward
* compatibility.
*
* In descriptor.proto, messages are nested inside other messages if that is
* what the original .proto file looks like. For example, suppose we have this
* foo.proto:
*
* package foo;
* message Bar {
* message Baz {}
* }
*
* The descriptor for this must look like this:
*
* file {
* name: "test.proto"
* package: "foo"
* message_type {
* name: "Bar"
* nested_type {
* name: "Baz"
* }
* }
* }
*
* However, the Ruby generated code has always generated messages in a flat,
* non-nested way:
*
* Google::Protobuf::DescriptorPool.generated_pool.build do
* add_message "foo.Bar" do
* end
* add_message "foo.Bar.Baz" do
* end
* end
*
* Here we need to do a translation where we turn this generated code into the
* above descriptor. We need to infer that "foo" is the package name, and not
* a message itself.
*
* We delegate to Ruby to compute the transformation, for more concice and
* readable code than we can do in C */
static void rewrite_names(VALUE _file_builder,
google_protobuf_FileDescriptorProto* file_proto) {
FileBuilderContext* file_builder = ruby_to_FileBuilderContext(_file_builder);
upb_arena *arena = file_builder->arena;
// Build params (package, msg_names, enum_names).
VALUE package = Qnil;
VALUE msg_names = rb_ary_new();
VALUE enum_names = rb_ary_new();
size_t msg_count, enum_count, i;
VALUE new_package, nesting, msg_ents, enum_ents;
google_protobuf_DescriptorProto** msgs;
google_protobuf_EnumDescriptorProto** enums;
if (google_protobuf_FileDescriptorProto_has_package(file_proto)) {
upb_strview package_str =
google_protobuf_FileDescriptorProto_package(file_proto);
package = rb_str_new(package_str.data, package_str.size);
}
msgs = google_protobuf_FileDescriptorProto_mutable_message_type(file_proto,
&msg_count);
for (i = 0; i < msg_count; i++) {
upb_strview name = google_protobuf_DescriptorProto_name(msgs[i]);
rb_ary_push(msg_names, rb_str_new(name.data, name.size));
}
enums = google_protobuf_FileDescriptorProto_mutable_enum_type(file_proto,
&enum_count);
for (i = 0; i < enum_count; i++) {
upb_strview name = google_protobuf_EnumDescriptorProto_name(enums[i]);
rb_ary_push(enum_names, rb_str_new(name.data, name.size));
}
{
// Call Ruby code to calculate package name and nesting.
VALUE args[3] = { package, msg_names, enum_names };
VALUE internal = rb_eval_string("Google::Protobuf::Internal");
VALUE ret = rb_funcallv(internal, rb_intern("fixup_descriptor"), 3, args);
new_package = rb_ary_entry(ret, 0);
nesting = rb_ary_entry(ret, 1);
}
// Rewrite package and names.
if (new_package != Qnil) {
upb_strview new_package_str =
FileBuilderContext_strdup(_file_builder, new_package);
google_protobuf_FileDescriptorProto_set_package(file_proto,
new_package_str);
}
for (i = 0; i < msg_count; i++) {
upb_strview name = google_protobuf_DescriptorProto_name(msgs[i]);
remove_path(&name);
google_protobuf_DescriptorProto_set_name(msgs[i], name);
}
for (i = 0; i < enum_count; i++) {
upb_strview name = google_protobuf_EnumDescriptorProto_name(enums[i]);
remove_path(&name);
google_protobuf_EnumDescriptorProto_set_name(enums[i], name);
}
// Rewrite nesting.
msg_ents = rb_hash_aref(nesting, ID2SYM(rb_intern("msgs")));
enum_ents = rb_hash_aref(nesting, ID2SYM(rb_intern("enums")));
Check_Type(msg_ents, T_ARRAY);
Check_Type(enum_ents, T_ARRAY);
for (i = 0; i < (size_t)RARRAY_LEN(msg_ents); i++) {
VALUE msg_ent = rb_ary_entry(msg_ents, i);
VALUE pos = rb_hash_aref(msg_ent, ID2SYM(rb_intern("pos")));
msgs[i] = msgs[NUM2INT(pos)];
rewrite_nesting(msg_ent, msgs[i], msgs, enums, arena);
}
for (i = 0; i < (size_t)RARRAY_LEN(enum_ents); i++) {
VALUE enum_pos = rb_ary_entry(enum_ents, i);
enums[i] = enums[NUM2INT(enum_pos)];
}
google_protobuf_FileDescriptorProto_resize_message_type(
file_proto, RARRAY_LEN(msg_ents), arena);
google_protobuf_FileDescriptorProto_resize_enum_type(
file_proto, RARRAY_LEN(enum_ents), arena);
}
// -----------------------------------------------------------------------------
// DescriptorPool.
// -----------------------------------------------------------------------------
#define DEFINE_CLASS(name, string_name) \
VALUE c ## name = Qnil; \
const rb_data_type_t _ ## name ## _type = { \
string_name, \
{ name ## _mark, name ## _free, NULL }, \
}; \
name* ruby_to_ ## name(VALUE val) { \
name* ret; \
TypedData_Get_Struct(val, name, &_ ## name ## _type, ret); \
return ret; \
} \
#define DEFINE_SELF(type, var, rb_var) \
type* var = ruby_to_ ## type(rb_var)
// Global singleton DescriptorPool. The user is free to create others, but this
// is used by generated code.
VALUE generated_pool = Qnil;
DEFINE_CLASS(DescriptorPool, "Google::Protobuf::DescriptorPool");
void DescriptorPool_mark(void* _self) {
DescriptorPool* self = _self;
rb_gc_mark(self->def_to_descriptor);
}
void DescriptorPool_free(void* _self) {
DescriptorPool* self = _self;
upb_symtab_free(self->symtab);
upb_handlercache_free(self->fill_handler_cache);
upb_handlercache_free(self->pb_serialize_handler_cache);
upb_handlercache_free(self->json_serialize_handler_cache);
upb_handlercache_free(self->json_serialize_handler_preserve_cache);
upb_pbcodecache_free(self->fill_method_cache);
upb_json_codecache_free(self->json_fill_method_cache);
xfree(self);
}
/*
* call-seq:
* DescriptorPool.new => pool
*
* Creates a new, empty, descriptor pool.
*/
VALUE DescriptorPool_alloc(VALUE klass) {
DescriptorPool* self = ALLOC(DescriptorPool);
VALUE ret;
self->def_to_descriptor = Qnil;
ret = TypedData_Wrap_Struct(klass, &_DescriptorPool_type, self);
self->def_to_descriptor = rb_hash_new();
self->symtab = upb_symtab_new();
self->fill_handler_cache =
upb_handlercache_new(add_handlers_for_message, (void*)ret);
self->pb_serialize_handler_cache = upb_pb_encoder_newcache();
self->json_serialize_handler_cache = upb_json_printer_newcache(false);
self->json_serialize_handler_preserve_cache =
upb_json_printer_newcache(true);
self->fill_method_cache = upb_pbcodecache_new(self->fill_handler_cache);
self->json_fill_method_cache = upb_json_codecache_new();
return ret;
}
void DescriptorPool_register(VALUE module) {
VALUE klass = rb_define_class_under(
module, "DescriptorPool", rb_cObject);
rb_define_alloc_func(klass, DescriptorPool_alloc);
rb_define_method(klass, "build", DescriptorPool_build, -1);
rb_define_method(klass, "lookup", DescriptorPool_lookup, 1);
rb_define_singleton_method(klass, "generated_pool",
DescriptorPool_generated_pool, 0);
rb_gc_register_address(&cDescriptorPool);
cDescriptorPool = klass;
rb_gc_register_address(&generated_pool);
generated_pool = rb_class_new_instance(0, NULL, klass);
}
/*
* call-seq:
* DescriptorPool.build(&block)
*
* Invokes the block with a Builder instance as self. All message and enum types
* added within the block are committed to the pool atomically, and may refer
* (co)recursively to each other. The user should call Builder#add_message and
* Builder#add_enum within the block as appropriate. This is the recommended,
* idiomatic way to define new message and enum types.
*/
VALUE DescriptorPool_build(int argc, VALUE* argv, VALUE _self) {
VALUE ctx = rb_class_new_instance(1, &_self, cBuilder);
VALUE block = rb_block_proc();
rb_funcall_with_block(ctx, rb_intern("instance_eval"), 0, NULL, block);
Builder_build(ctx);
return Qnil;
}
/*
* call-seq:
* DescriptorPool.lookup(name) => descriptor
*
* Finds a Descriptor or EnumDescriptor by name and returns it, or nil if none
* exists with the given name.
*/
VALUE DescriptorPool_lookup(VALUE _self, VALUE name) {
DEFINE_SELF(DescriptorPool, self, _self);
const char* name_str = get_str(name);
const upb_msgdef* msgdef;
const upb_enumdef* enumdef;
msgdef = upb_symtab_lookupmsg(self->symtab, name_str);
if (msgdef) {
return get_msgdef_obj(_self, msgdef);
}
enumdef = upb_symtab_lookupenum(self->symtab, name_str);
if (enumdef) {
return get_enumdef_obj(_self, enumdef);
}
return Qnil;
}
/*
* call-seq:
* DescriptorPool.generated_pool => descriptor_pool
*
* Class method that returns the global DescriptorPool. This is a singleton into
* which generated-code message and enum types are registered. The user may also
* register types in this pool for convenience so that they do not have to hold
* a reference to a private pool instance.
*/
VALUE DescriptorPool_generated_pool(VALUE _self) {
return generated_pool;
}
// -----------------------------------------------------------------------------
// Descriptor.
// -----------------------------------------------------------------------------
DEFINE_CLASS(Descriptor, "Google::Protobuf::Descriptor");
void Descriptor_mark(void* _self) {
Descriptor* self = _self;
rb_gc_mark(self->klass);
rb_gc_mark(self->descriptor_pool);
if (self->layout && self->layout->empty_template) {
layout_mark(self->layout, self->layout->empty_template);
}
}
void Descriptor_free(void* _self) {
Descriptor* self = _self;
if (self->layout) {
free_layout(self->layout);
}
xfree(self);
}
/*
* call-seq:
* Descriptor.new => descriptor
*
* Creates a new, empty, message type descriptor. At a minimum, its name must be
* set before it is added to a pool. It cannot be used to create messages until
* it is added to a pool, after which it becomes immutable (as part of a
* finalization process).
*/
VALUE Descriptor_alloc(VALUE klass) {
Descriptor* self = ALLOC(Descriptor);
VALUE ret = TypedData_Wrap_Struct(klass, &_Descriptor_type, self);
self->msgdef = NULL;
self->klass = Qnil;
self->descriptor_pool = Qnil;
self->layout = NULL;
return ret;
}
void Descriptor_register(VALUE module) {
VALUE klass = rb_define_class_under(
module, "Descriptor", rb_cObject);
rb_define_alloc_func(klass, Descriptor_alloc);
rb_define_method(klass, "initialize", Descriptor_initialize, 3);
rb_define_method(klass, "each", Descriptor_each, 0);
rb_define_method(klass, "lookup", Descriptor_lookup, 1);
rb_define_method(klass, "each_oneof", Descriptor_each_oneof, 0);
rb_define_method(klass, "lookup_oneof", Descriptor_lookup_oneof, 1);
rb_define_method(klass, "msgclass", Descriptor_msgclass, 0);
rb_define_method(klass, "name", Descriptor_name, 0);
rb_define_method(klass, "file_descriptor", Descriptor_file_descriptor, 0);
rb_include_module(klass, rb_mEnumerable);
rb_gc_register_address(&cDescriptor);
cDescriptor = klass;
}
/*
* call-seq:
* Descriptor.new(c_only_cookie, ptr) => Descriptor
*
* Creates a descriptor wrapper object. May only be called from C.
*/
VALUE Descriptor_initialize(VALUE _self, VALUE cookie,
VALUE descriptor_pool, VALUE ptr) {
DEFINE_SELF(Descriptor, self, _self);
if (cookie != c_only_cookie) {
rb_raise(rb_eRuntimeError,
"Descriptor objects may not be created from Ruby.");
}
self->descriptor_pool = descriptor_pool;
self->msgdef = (const upb_msgdef*)NUM2ULL(ptr);
return Qnil;
}
/*
* call-seq:
* Descriptor.file_descriptor
*
* Returns the FileDescriptor object this message belongs to.
*/
VALUE Descriptor_file_descriptor(VALUE _self) {
DEFINE_SELF(Descriptor, self, _self);
return get_filedef_obj(self->descriptor_pool, upb_msgdef_file(self->msgdef));
}
/*
* call-seq:
* Descriptor.name => name
*
* Returns the name of this message type as a fully-qualified string (e.g.,
* My.Package.MessageType).
*/
VALUE Descriptor_name(VALUE _self) {
DEFINE_SELF(Descriptor, self, _self);
return rb_str_maybe_null(upb_msgdef_fullname(self->msgdef));
}
/*
* call-seq:
* Descriptor.each(&block)
*
* Iterates over fields in this message type, yielding to the block on each one.
*/
VALUE Descriptor_each(VALUE _self) {
DEFINE_SELF(Descriptor, self, _self);
upb_msg_field_iter it;
for (upb_msg_field_begin(&it, self->msgdef);
!upb_msg_field_done(&it);
upb_msg_field_next(&it)) {
const upb_fielddef* field = upb_msg_iter_field(&it);
VALUE obj = get_fielddef_obj(self->descriptor_pool, field);
rb_yield(obj);
}
return Qnil;
}
/*
* 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_fielddef_obj(self->descriptor_pool, field);
}
/*
* call-seq:
* Descriptor.each_oneof(&block) => nil
*
* Invokes the given block for each oneof in this message type, passing the
* corresponding OneofDescriptor.
*/
VALUE Descriptor_each_oneof(VALUE _self) {
DEFINE_SELF(Descriptor, self, _self);
upb_msg_oneof_iter it;
for (upb_msg_oneof_begin(&it, self->msgdef);
!upb_msg_oneof_done(&it);
upb_msg_oneof_next(&it)) {
const upb_oneofdef* oneof = upb_msg_iter_oneof(&it);
VALUE obj = get_oneofdef_obj(self->descriptor_pool, oneof);
rb_yield(obj);
}
return Qnil;
}
/*
* call-seq:
* Descriptor.lookup_oneof(name) => OneofDescriptor
*
* Returns the oneof descriptor for the oneof with the given name, if present,
* or nil if none.
*/
VALUE Descriptor_lookup_oneof(VALUE _self, VALUE name) {
DEFINE_SELF(Descriptor, self, _self);
const char* s = get_str(name);
const upb_oneofdef* oneof = upb_msgdef_ntooz(self->msgdef, s);
if (oneof == NULL) {
return Qnil;
}
return get_oneofdef_obj(self->descriptor_pool, oneof);
}
/*
* call-seq:
* Descriptor.msgclass => message_klass
*
* Returns the Ruby class created for this message type.
*/
VALUE Descriptor_msgclass(VALUE _self) {
DEFINE_SELF(Descriptor, self, _self);
if (self->klass == Qnil) {
self->klass = build_class_from_descriptor(_self);
}
return self->klass;
}
// -----------------------------------------------------------------------------
// FileDescriptor.
// -----------------------------------------------------------------------------
DEFINE_CLASS(FileDescriptor, "Google::Protobuf::FileDescriptor");
void FileDescriptor_mark(void* _self) {
FileDescriptor* self = _self;
rb_gc_mark(self->descriptor_pool);
}
void FileDescriptor_free(void* _self) {
xfree(_self);
}
VALUE FileDescriptor_alloc(VALUE klass) {
FileDescriptor* self = ALLOC(FileDescriptor);
VALUE ret = TypedData_Wrap_Struct(klass, &_FileDescriptor_type, self);
self->descriptor_pool = Qnil;
self->filedef = NULL;
return ret;
}
/*
* call-seq:
* FileDescriptor.new => file
*
* Returns a new file descriptor. The syntax must be set before it's passed
* to a builder.
*/
VALUE FileDescriptor_initialize(VALUE _self, VALUE cookie,
VALUE descriptor_pool, VALUE ptr) {
DEFINE_SELF(FileDescriptor, self, _self);
if (cookie != c_only_cookie) {
rb_raise(rb_eRuntimeError,
"Descriptor objects may not be created from Ruby.");
}
self->descriptor_pool = descriptor_pool;
self->filedef = (const upb_filedef*)NUM2ULL(ptr);
return Qnil;
}
void FileDescriptor_register(VALUE module) {
VALUE klass = rb_define_class_under(
module, "FileDescriptor", rb_cObject);
rb_define_alloc_func(klass, FileDescriptor_alloc);
rb_define_method(klass, "initialize", FileDescriptor_initialize, 3);
rb_define_method(klass, "name", FileDescriptor_name, 0);
rb_define_method(klass, "syntax", FileDescriptor_syntax, 0);
rb_gc_register_address(&cFileDescriptor);
cFileDescriptor = klass;
}
/*
* call-seq:
* FileDescriptor.name => name
*
* Returns the name of the file.
*/
VALUE FileDescriptor_name(VALUE _self) {
DEFINE_SELF(FileDescriptor, self, _self);
const char* name = upb_filedef_name(self->filedef);
return name == NULL ? Qnil : rb_str_new2(name);
}
/*
* call-seq:
* FileDescriptor.syntax => syntax
*
* Returns this file descriptors syntax.
*
* Valid syntax versions are:
* :proto2 or :proto3.
*/
VALUE FileDescriptor_syntax(VALUE _self) {
DEFINE_SELF(FileDescriptor, self, _self);
switch (upb_filedef_syntax(self->filedef)) {
case UPB_SYNTAX_PROTO3: return ID2SYM(rb_intern("proto3"));
case UPB_SYNTAX_PROTO2: return ID2SYM(rb_intern("proto2"));
default: return Qnil;
}
}
// -----------------------------------------------------------------------------
// FieldDescriptor.
// -----------------------------------------------------------------------------
DEFINE_CLASS(FieldDescriptor, "Google::Protobuf::FieldDescriptor");
void FieldDescriptor_mark(void* _self) {
FieldDescriptor* self = _self;
rb_gc_mark(self->descriptor_pool);
}
void FieldDescriptor_free(void* _self) {
xfree(_self);
}
/*
* call-seq:
* FieldDescriptor.new => field
*
* Returns a new field descriptor. Its name, type, etc. must be set before it is
* added to a message type.
*/
VALUE FieldDescriptor_alloc(VALUE klass) {
FieldDescriptor* self = ALLOC(FieldDescriptor);
VALUE ret = TypedData_Wrap_Struct(klass, &_FieldDescriptor_type, self);
self->fielddef = NULL;
return ret;
}
void FieldDescriptor_register(VALUE module) {
VALUE klass = rb_define_class_under(
module, "FieldDescriptor", rb_cObject);
rb_define_alloc_func(klass, FieldDescriptor_alloc);
rb_define_method(klass, "initialize", FieldDescriptor_initialize, 3);
rb_define_method(klass, "name", FieldDescriptor_name, 0);
rb_define_method(klass, "type", FieldDescriptor_type, 0);
rb_define_method(klass, "default", FieldDescriptor_default, 0);
rb_define_method(klass, "label", FieldDescriptor_label, 0);
rb_define_method(klass, "number", FieldDescriptor_number, 0);
rb_define_method(klass, "submsg_name", FieldDescriptor_submsg_name, 0);
rb_define_method(klass, "subtype", FieldDescriptor_subtype, 0);
rb_define_method(klass, "has?", FieldDescriptor_has, 1);
rb_define_method(klass, "clear", FieldDescriptor_clear, 1);
rb_define_method(klass, "get", FieldDescriptor_get, 1);
rb_define_method(klass, "set", FieldDescriptor_set, 2);
rb_gc_register_address(&cFieldDescriptor);
cFieldDescriptor = klass;
}
/*
* call-seq:
* EnumDescriptor.new(c_only_cookie, pool, ptr) => EnumDescriptor
*
* Creates a descriptor wrapper object. May only be called from C.
*/
VALUE FieldDescriptor_initialize(VALUE _self, VALUE cookie,
VALUE descriptor_pool, VALUE ptr) {
DEFINE_SELF(FieldDescriptor, self, _self);
if (cookie != c_only_cookie) {
rb_raise(rb_eRuntimeError,
"Descriptor objects may not be created from Ruby.");
}
self->descriptor_pool = descriptor_pool;
self->fielddef = (const upb_fielddef*)NUM2ULL(ptr);
return Qnil;
}
/*
* call-seq:
* FieldDescriptor.name => name
*
* Returns the name of this field.
*/
VALUE FieldDescriptor_name(VALUE _self) {
DEFINE_SELF(FieldDescriptor, self, _self);
return rb_str_maybe_null(upb_fielddef_name(self->fielddef));
}
upb_fieldtype_t ruby_to_fieldtype(VALUE type) {
if (TYPE(type) != T_SYMBOL) {
rb_raise(rb_eArgError, "Expected symbol for field type.");
}
#define CONVERT(upb, ruby) \
if (SYM2ID(type) == rb_intern( # ruby )) { \
return UPB_TYPE_ ## upb; \
}
CONVERT(FLOAT, float);
CONVERT(DOUBLE, double);
CONVERT(BOOL, bool);
CONVERT(STRING, string);
CONVERT(BYTES, bytes);
CONVERT(MESSAGE, message);
CONVERT(ENUM, enum);
CONVERT(INT32, int32);
CONVERT(INT64, int64);
CONVERT(UINT32, uint32);
CONVERT(UINT64, uint64);
#undef CONVERT
rb_raise(rb_eArgError, "Unknown field type.");
return 0;
}
VALUE fieldtype_to_ruby(upb_fieldtype_t type) {
switch (type) {
#define CONVERT(upb, ruby) \
case UPB_TYPE_ ## upb : return ID2SYM(rb_intern( # ruby ));
CONVERT(FLOAT, float);
CONVERT(DOUBLE, double);
CONVERT(BOOL, bool);
CONVERT(STRING, string);
CONVERT(BYTES, bytes);
CONVERT(MESSAGE, message);
CONVERT(ENUM, enum);
CONVERT(INT32, int32);
CONVERT(INT64, int64);
CONVERT(UINT32, uint32);
CONVERT(UINT64, uint64);
#undef CONVERT
}
return Qnil;
}
upb_descriptortype_t ruby_to_descriptortype(VALUE type) {
if (TYPE(type) != T_SYMBOL) {
rb_raise(rb_eArgError, "Expected symbol for field type.");
}
#define CONVERT(upb, ruby) \
if (SYM2ID(type) == rb_intern( # ruby )) { \
return UPB_DESCRIPTOR_TYPE_ ## upb; \
}
CONVERT(FLOAT, float);
CONVERT(DOUBLE, double);
CONVERT(BOOL, bool);
CONVERT(STRING, string);
CONVERT(BYTES, bytes);
CONVERT(MESSAGE, message);
CONVERT(GROUP, group);
CONVERT(ENUM, enum);
CONVERT(INT32, int32);
CONVERT(INT64, int64);
CONVERT(UINT32, uint32);
CONVERT(UINT64, uint64);
CONVERT(SINT32, sint32);
CONVERT(SINT64, sint64);
CONVERT(FIXED32, fixed32);
CONVERT(FIXED64, fixed64);
CONVERT(SFIXED32, sfixed32);
CONVERT(SFIXED64, sfixed64);
#undef CONVERT
rb_raise(rb_eArgError, "Unknown field type.");
return 0;
}
VALUE descriptortype_to_ruby(upb_descriptortype_t type) {
switch (type) {
#define CONVERT(upb, ruby) \
case UPB_DESCRIPTOR_TYPE_ ## upb : return ID2SYM(rb_intern( # ruby ));
CONVERT(FLOAT, float);
CONVERT(DOUBLE, double);
CONVERT(BOOL, bool);
CONVERT(STRING, string);
CONVERT(BYTES, bytes);
CONVERT(MESSAGE, message);
CONVERT(GROUP, group);
CONVERT(ENUM, enum);
CONVERT(INT32, int32);
CONVERT(INT64, int64);
CONVERT(UINT32, uint32);
CONVERT(UINT64, uint64);
CONVERT(SINT32, sint32);
CONVERT(SINT64, sint64);
CONVERT(FIXED32, fixed32);
CONVERT(FIXED64, fixed64);
CONVERT(SFIXED32, sfixed32);
CONVERT(SFIXED64, sfixed64);
#undef CONVERT
}
return Qnil;
}
VALUE ruby_to_label(VALUE label) {
upb_label_t upb_label;
bool converted = false;
#define CONVERT(upb, ruby) \
if (SYM2ID(label) == rb_intern( # ruby )) { \
upb_label = UPB_LABEL_ ## upb; \
converted = true; \
}
CONVERT(OPTIONAL, optional);
CONVERT(REQUIRED, required);
CONVERT(REPEATED, repeated);
#undef CONVERT
if (!converted) {
rb_raise(rb_eArgError, "Unknown field label.");
}
return upb_label;
}
/*
* call-seq:
* FieldDescriptor.type => type
*
* Returns this field's type, as a Ruby symbol, or nil if not yet set.
*
* Valid field types are:
* :int32, :int64, :uint32, :uint64, :float, :double, :bool, :string,
* :bytes, :message.
*/
VALUE FieldDescriptor_type(VALUE _self) {
DEFINE_SELF(FieldDescriptor, self, _self);
return descriptortype_to_ruby(upb_fielddef_descriptortype(self->fielddef));
}
/*
* call-seq:
* FieldDescriptor.default => default
*
* Returns this field's default, as a Ruby object, or nil if not yet set.
*/
VALUE FieldDescriptor_default(VALUE _self) {
DEFINE_SELF(FieldDescriptor, self, _self);
return layout_get_default(self->fielddef);
}
/*
* call-seq:
* FieldDescriptor.label => label
*
* Returns this field's label (i.e., plurality), as a Ruby symbol.
*
* Valid field labels are:
* :optional, :repeated
*/
VALUE FieldDescriptor_label(VALUE _self) {
DEFINE_SELF(FieldDescriptor, self, _self);
switch (upb_fielddef_label(self->fielddef)) {
#define CONVERT(upb, ruby) \
case UPB_LABEL_ ## upb : return ID2SYM(rb_intern( # ruby ));
CONVERT(OPTIONAL, optional);
CONVERT(REQUIRED, required);
CONVERT(REPEATED, repeated);
#undef CONVERT
}
return Qnil;
}
/*
* call-seq:
* FieldDescriptor.number => number
*
* Returns the tag number for this field.
*/
VALUE FieldDescriptor_number(VALUE _self) {
DEFINE_SELF(FieldDescriptor, self, _self);
return INT2NUM(upb_fielddef_number(self->fielddef));
}
/*
* call-seq:
* FieldDescriptor.submsg_name => submsg_name
*
* Returns the name of the message or enum type corresponding to this field, if
* it is a message or enum field (respectively), or nil otherwise. This type
* name will be resolved within the context of the pool to which the containing
* message type is added.
*/
VALUE FieldDescriptor_submsg_name(VALUE _self) {
DEFINE_SELF(FieldDescriptor, self, _self);
switch (upb_fielddef_type(self->fielddef)) {
case UPB_TYPE_ENUM:
return rb_str_new2(
upb_enumdef_fullname(upb_fielddef_enumsubdef(self->fielddef)));
case UPB_TYPE_MESSAGE:
return rb_str_new2(
upb_msgdef_fullname(upb_fielddef_msgsubdef(self->fielddef)));
default:
return Qnil;
}
}
/*
* call-seq:
* FieldDescriptor.subtype => message_or_enum_descriptor
*
* Returns the message or enum descriptor corresponding to this field's type if
* it is a message or enum field, respectively, or nil otherwise. Cannot be
* called *until* the containing message type is added to a pool (and thus
* resolved).
*/
VALUE FieldDescriptor_subtype(VALUE _self) {
DEFINE_SELF(FieldDescriptor, self, _self);
switch (upb_fielddef_type(self->fielddef)) {
case UPB_TYPE_ENUM:
return get_enumdef_obj(self->descriptor_pool,
upb_fielddef_enumsubdef(self->fielddef));
case UPB_TYPE_MESSAGE:
return get_msgdef_obj(self->descriptor_pool,
upb_fielddef_msgsubdef(self->fielddef));
default:
return Qnil;
}
}
/*
* call-seq:
* FieldDescriptor.get(message) => value
*
* Returns the value set for this field on the given message. Raises an
* exception if message is of the wrong type.
*/
VALUE FieldDescriptor_get(VALUE _self, VALUE msg_rb) {
DEFINE_SELF(FieldDescriptor, self, _self);
MessageHeader* msg;
TypedData_Get_Struct(msg_rb, MessageHeader, &Message_type, msg);
if (msg->descriptor->msgdef != upb_fielddef_containingtype(self->fielddef)) {
rb_raise(cTypeError, "get method called on wrong message type");
}
return layout_get(msg->descriptor->layout, Message_data(msg), self->fielddef);
}
/*
* call-seq:
* FieldDescriptor.has?(message) => boolean
*
* Returns whether the value is set on the given message. Raises an
* exception when calling for fields that do not have presence.
*/
VALUE FieldDescriptor_has(VALUE _self, VALUE msg_rb) {
DEFINE_SELF(FieldDescriptor, self, _self);
MessageHeader* msg;
TypedData_Get_Struct(msg_rb, MessageHeader, &Message_type, msg);
if (msg->descriptor->msgdef != upb_fielddef_containingtype(self->fielddef)) {
rb_raise(cTypeError, "has method called on wrong message type");
} else if (!upb_fielddef_haspresence(self->fielddef)) {
rb_raise(rb_eArgError, "does not track presence");
}
return layout_has(msg->descriptor->layout, Message_data(msg), self->fielddef);
}
/*
* call-seq:
* FieldDescriptor.clear(message)
*
* Clears the field from the message if it's set.
*/
VALUE FieldDescriptor_clear(VALUE _self, VALUE msg_rb) {
DEFINE_SELF(FieldDescriptor, self, _self);
MessageHeader* msg;
TypedData_Get_Struct(msg_rb, MessageHeader, &Message_type, msg);
if (msg->descriptor->msgdef != upb_fielddef_containingtype(self->fielddef)) {
rb_raise(cTypeError, "has method called on wrong message type");
}
layout_clear(msg->descriptor->layout, Message_data(msg), self->fielddef);
return Qnil;
}
/*
* call-seq:
* FieldDescriptor.set(message, value)
*
* Sets the value corresponding to this field to the given value on the given
* message. Raises an exception if message is of the wrong type. Performs the
* ordinary type-checks for field setting.
*/
VALUE FieldDescriptor_set(VALUE _self, VALUE msg_rb, VALUE value) {
DEFINE_SELF(FieldDescriptor, self, _self);
MessageHeader* msg;
TypedData_Get_Struct(msg_rb, MessageHeader, &Message_type, msg);
if (msg->descriptor->msgdef != upb_fielddef_containingtype(self->fielddef)) {
rb_raise(cTypeError, "set method called on wrong message type");
}
layout_set(msg->descriptor->layout, Message_data(msg), self->fielddef, value);
return Qnil;
}
// -----------------------------------------------------------------------------
// OneofDescriptor.
// -----------------------------------------------------------------------------
DEFINE_CLASS(OneofDescriptor, "Google::Protobuf::OneofDescriptor");
void OneofDescriptor_mark(void* _self) {
OneofDescriptor* self = _self;
rb_gc_mark(self->descriptor_pool);
}
void OneofDescriptor_free(void* _self) {
xfree(_self);
}
/*
* call-seq:
* OneofDescriptor.new => oneof_descriptor
*
* Creates a new, empty, oneof descriptor. The oneof may only be modified prior
* to being added to a message descriptor which is subsequently added to a pool.
*/
VALUE OneofDescriptor_alloc(VALUE klass) {
OneofDescriptor* self = ALLOC(OneofDescriptor);
VALUE ret = TypedData_Wrap_Struct(klass, &_OneofDescriptor_type, self);
self->oneofdef = NULL;
self->descriptor_pool = Qnil;
return ret;
}
void OneofDescriptor_register(VALUE module) {
VALUE klass = rb_define_class_under(
module, "OneofDescriptor", rb_cObject);
rb_define_alloc_func(klass, OneofDescriptor_alloc);
rb_define_method(klass, "initialize", OneofDescriptor_initialize, 3);
rb_define_method(klass, "name", OneofDescriptor_name, 0);
rb_define_method(klass, "each", OneofDescriptor_each, 0);
rb_include_module(klass, rb_mEnumerable);
rb_gc_register_address(&cOneofDescriptor);
cOneofDescriptor = klass;
}
/*
* call-seq:
* OneofDescriptor.new(c_only_cookie, pool, ptr) => OneofDescriptor
*
* Creates a descriptor wrapper object. May only be called from C.
*/
VALUE OneofDescriptor_initialize(VALUE _self, VALUE cookie,
VALUE descriptor_pool, VALUE ptr) {
DEFINE_SELF(OneofDescriptor, self, _self);
if (cookie != c_only_cookie) {
rb_raise(rb_eRuntimeError,
"Descriptor objects may not be created from Ruby.");
}
self->descriptor_pool = descriptor_pool;
self->oneofdef = (const upb_oneofdef*)NUM2ULL(ptr);
return Qnil;
}
/*
* call-seq:
* OneofDescriptor.name => name
*
* Returns the name of this oneof.
*/
VALUE OneofDescriptor_name(VALUE _self) {
DEFINE_SELF(OneofDescriptor, self, _self);
return rb_str_maybe_null(upb_oneofdef_name(self->oneofdef));
}
/*
* call-seq:
* OneofDescriptor.each(&block) => nil
*
* Iterates through fields in this oneof, yielding to the block on each one.
*/
VALUE OneofDescriptor_each(VALUE _self) {
DEFINE_SELF(OneofDescriptor, self, _self);
upb_oneof_iter it;
for (upb_oneof_begin(&it, self->oneofdef);
!upb_oneof_done(&it);
upb_oneof_next(&it)) {
const upb_fielddef* f = upb_oneof_iter_field(&it);
VALUE obj = get_fielddef_obj(self->descriptor_pool, f);
rb_yield(obj);
}
return Qnil;
}
// -----------------------------------------------------------------------------
// EnumDescriptor.
// -----------------------------------------------------------------------------
DEFINE_CLASS(EnumDescriptor, "Google::Protobuf::EnumDescriptor");
void EnumDescriptor_mark(void* _self) {
EnumDescriptor* self = _self;
rb_gc_mark(self->module);
rb_gc_mark(self->descriptor_pool);
}
void EnumDescriptor_free(void* _self) {
xfree(_self);
}
VALUE EnumDescriptor_alloc(VALUE klass) {
EnumDescriptor* self = ALLOC(EnumDescriptor);
VALUE ret = TypedData_Wrap_Struct(klass, &_EnumDescriptor_type, self);
self->enumdef = NULL;
self->module = Qnil;
self->descriptor_pool = Qnil;
return ret;
}
/*
* call-seq:
* EnumDescriptor.new(c_only_cookie, ptr) => EnumDescriptor
*
* Creates a descriptor wrapper object. May only be called from C.
*/
VALUE EnumDescriptor_initialize(VALUE _self, VALUE cookie,
VALUE descriptor_pool, VALUE ptr) {
DEFINE_SELF(EnumDescriptor, self, _self);
if (cookie != c_only_cookie) {
rb_raise(rb_eRuntimeError,
"Descriptor objects may not be created from Ruby.");
}
self->descriptor_pool = descriptor_pool;
self->enumdef = (const upb_enumdef*)NUM2ULL(ptr);
return Qnil;
}
void EnumDescriptor_register(VALUE module) {
VALUE klass = rb_define_class_under(
module, "EnumDescriptor", rb_cObject);
rb_define_alloc_func(klass, EnumDescriptor_alloc);
rb_define_method(klass, "initialize", EnumDescriptor_initialize, 3);
rb_define_method(klass, "name", EnumDescriptor_name, 0);
rb_define_method(klass, "lookup_name", EnumDescriptor_lookup_name, 1);
rb_define_method(klass, "lookup_value", EnumDescriptor_lookup_value, 1);
rb_define_method(klass, "each", EnumDescriptor_each, 0);
rb_define_method(klass, "enummodule", EnumDescriptor_enummodule, 0);
rb_define_method(klass, "file_descriptor", EnumDescriptor_file_descriptor, 0);
rb_include_module(klass, rb_mEnumerable);
rb_gc_register_address(&cEnumDescriptor);
cEnumDescriptor = klass;
}
/*
* call-seq:
* EnumDescriptor.file_descriptor
*
* Returns the FileDescriptor object this enum belongs to.
*/
VALUE EnumDescriptor_file_descriptor(VALUE _self) {
DEFINE_SELF(EnumDescriptor, self, _self);
return get_filedef_obj(self->descriptor_pool,
upb_enumdef_file(self->enumdef));
}
/*
* call-seq:
* EnumDescriptor.name => name
*
* Returns the name of this enum type.
*/
VALUE EnumDescriptor_name(VALUE _self) {
DEFINE_SELF(EnumDescriptor, self, _self);
return rb_str_maybe_null(upb_enumdef_fullname(self->enumdef));
}
/*
* call-seq:
* EnumDescriptor.lookup_name(name) => value
*
* Returns the numeric value corresponding to the given key name (as a Ruby
* symbol), or nil if none.
*/
VALUE EnumDescriptor_lookup_name(VALUE _self, VALUE name) {
DEFINE_SELF(EnumDescriptor, self, _self);
const char* name_str= rb_id2name(SYM2ID(name));
int32_t val = 0;
if (upb_enumdef_ntoiz(self->enumdef, name_str, &val)) {
return INT2NUM(val);
} else {
return Qnil;
}
}
/*
* call-seq:
* EnumDescriptor.lookup_value(name) => value
*
* Returns the key name (as a Ruby symbol) corresponding to the integer value,
* or nil if none.
*/
VALUE EnumDescriptor_lookup_value(VALUE _self, VALUE number) {
DEFINE_SELF(EnumDescriptor, self, _self);
int32_t val = NUM2INT(number);
const char* name = upb_enumdef_iton(self->enumdef, val);
if (name != NULL) {
return ID2SYM(rb_intern(name));
} else {
return Qnil;
}
}
/*
* call-seq:
* EnumDescriptor.each(&block)
*
* Iterates over key => value mappings in this enum's definition, yielding to
* the block with (key, value) arguments for each one.
*/
VALUE EnumDescriptor_each(VALUE _self) {
DEFINE_SELF(EnumDescriptor, self, _self);
upb_enum_iter it;
for (upb_enum_begin(&it, self->enumdef);
!upb_enum_done(&it);
upb_enum_next(&it)) {
VALUE key = ID2SYM(rb_intern(upb_enum_iter_name(&it)));
VALUE number = INT2NUM(upb_enum_iter_number(&it));
rb_yield_values(2, key, number);
}
return Qnil;
}
/*
* call-seq:
* EnumDescriptor.enummodule => module
*
* Returns the Ruby module corresponding to this enum type.
*/
VALUE EnumDescriptor_enummodule(VALUE _self) {
DEFINE_SELF(EnumDescriptor, self, _self);
if (self->module == Qnil) {
self->module = build_module_from_enumdesc(_self);
}
return self->module;
}
// -----------------------------------------------------------------------------
// MessageBuilderContext.
// -----------------------------------------------------------------------------
DEFINE_CLASS(MessageBuilderContext,
"Google::Protobuf::Internal::MessageBuilderContext");
void MessageBuilderContext_mark(void* _self) {
MessageBuilderContext* self = _self;
rb_gc_mark(self->file_builder);
}
void MessageBuilderContext_free(void* _self) {
MessageBuilderContext* self = _self;
xfree(self);
}
VALUE MessageBuilderContext_alloc(VALUE klass) {
MessageBuilderContext* self = ALLOC(MessageBuilderContext);
VALUE ret = TypedData_Wrap_Struct(
klass, &_MessageBuilderContext_type, self);
self->file_builder = Qnil;
return ret;
}
void MessageBuilderContext_register(VALUE module) {
VALUE klass = rb_define_class_under(
module, "MessageBuilderContext", rb_cObject);
rb_define_alloc_func(klass, MessageBuilderContext_alloc);
rb_define_method(klass, "initialize",
MessageBuilderContext_initialize, 2);
rb_define_method(klass, "optional", MessageBuilderContext_optional, -1);
rb_define_method(klass, "proto3_optional", MessageBuilderContext_proto3_optional, -1);
rb_define_method(klass, "required", MessageBuilderContext_required, -1);
rb_define_method(klass, "repeated", MessageBuilderContext_repeated, -1);
rb_define_method(klass, "map", MessageBuilderContext_map, -1);
rb_define_method(klass, "oneof", MessageBuilderContext_oneof, 1);
rb_gc_register_address(&cMessageBuilderContext);
cMessageBuilderContext = klass;
}
/*
* call-seq:
* MessageBuilderContext.new(file_builder, name) => context
*
* Create a new message builder context around the given message descriptor and
* builder context. This class is intended to serve as a DSL context to be used
* with #instance_eval.
*/
VALUE MessageBuilderContext_initialize(VALUE _self,
VALUE _file_builder,
VALUE name) {
DEFINE_SELF(MessageBuilderContext, self, _self);
FileBuilderContext* file_builder = ruby_to_FileBuilderContext(_file_builder);
google_protobuf_FileDescriptorProto* file_proto = file_builder->file_proto;
self->file_builder = _file_builder;
self->msg_proto = google_protobuf_FileDescriptorProto_add_message_type(
file_proto, file_builder->arena);
google_protobuf_DescriptorProto_set_name(
self->msg_proto, FileBuilderContext_strdup(_file_builder, name));
return Qnil;
}
static void msgdef_add_field(VALUE msgbuilder_rb, upb_label_t label, VALUE name,
VALUE type, VALUE number, VALUE type_class,
VALUE options, int oneof_index,
bool proto3_optional) {
DEFINE_SELF(MessageBuilderContext, self, msgbuilder_rb);
FileBuilderContext* file_context =
ruby_to_FileBuilderContext(self->file_builder);
google_protobuf_FieldDescriptorProto* field_proto;
VALUE name_str;
field_proto = google_protobuf_DescriptorProto_add_field(self->msg_proto,
file_context->arena);
Check_Type(name, T_SYMBOL);
name_str = rb_id2str(SYM2ID(name));
google_protobuf_FieldDescriptorProto_set_name(
field_proto, FileBuilderContext_strdup(self->file_builder, name_str));
google_protobuf_FieldDescriptorProto_set_number(field_proto, NUM2INT(number));
google_protobuf_FieldDescriptorProto_set_label(field_proto, (int)label);
google_protobuf_FieldDescriptorProto_set_type(
field_proto, (int)ruby_to_descriptortype(type));
if (proto3_optional) {
google_protobuf_FieldDescriptorProto_set_proto3_optional(field_proto, true);
}
if (type_class != Qnil) {
Check_Type(type_class, T_STRING);
// Make it an absolute type name by prepending a dot.
type_class = rb_str_append(rb_str_new2("."), type_class);
google_protobuf_FieldDescriptorProto_set_type_name(
field_proto, FileBuilderContext_strdup(self->file_builder, type_class));
}
if (options != Qnil) {
Check_Type(options, T_HASH);
if (rb_funcall(options, rb_intern("key?"), 1,
ID2SYM(rb_intern("default"))) == Qtrue) {
VALUE default_value =
rb_hash_lookup(options, ID2SYM(rb_intern("default")));
/* Call #to_s since all defaults are strings in the descriptor. */
default_value = rb_funcall(default_value, rb_intern("to_s"), 0);
google_protobuf_FieldDescriptorProto_set_default_value(
field_proto,
FileBuilderContext_strdup(self->file_builder, default_value));
}
}
if (oneof_index >= 0) {
google_protobuf_FieldDescriptorProto_set_oneof_index(field_proto,
oneof_index);
}
}
static VALUE make_mapentry(VALUE _message_builder, VALUE types, int argc,
VALUE* argv) {
DEFINE_SELF(MessageBuilderContext, message_builder, _message_builder);
VALUE type_class = rb_ary_entry(types, 2);
FileBuilderContext* file_context =
ruby_to_FileBuilderContext(message_builder->file_builder);
google_protobuf_MessageOptions* options =
google_protobuf_DescriptorProto_mutable_options(
message_builder->msg_proto, file_context->arena);
google_protobuf_MessageOptions_set_map_entry(options, true);
// optional <type> key = 1;
rb_funcall(_message_builder, rb_intern("optional"), 3,
ID2SYM(rb_intern("key")), rb_ary_entry(types, 0), INT2NUM(1));
// optional <type> value = 2;
if (type_class == Qnil) {
rb_funcall(_message_builder, rb_intern("optional"), 3,
ID2SYM(rb_intern("value")), rb_ary_entry(types, 1), INT2NUM(2));
} else {
rb_funcall(_message_builder, rb_intern("optional"), 4,
ID2SYM(rb_intern("value")), rb_ary_entry(types, 1), INT2NUM(2),
type_class);
}
return Qnil;
}
/*
* call-seq:
* MessageBuilderContext.optional(name, type, number, type_class = nil,
* options = nil)
*
* Defines a new optional field on this message type with the given type, tag
* number, and type class (for message and enum fields). The type must be a Ruby
* symbol (as accepted by FieldDescriptor#type=) and the type_class must be a
* string, if present (as accepted by FieldDescriptor#submsg_name=).
*/
VALUE MessageBuilderContext_optional(int argc, VALUE* argv, VALUE _self) {
VALUE name, type, number;
VALUE type_class, options = Qnil;
rb_scan_args(argc, argv, "32", &name, &type, &number, &type_class, &options);
// Allow passing (name, type, number, options) or
// (name, type, number, type_class, options)
if (argc == 4 && RB_TYPE_P(type_class, T_HASH)) {
options = type_class;
type_class = Qnil;
}
msgdef_add_field(_self, UPB_LABEL_OPTIONAL, name, type, number, type_class,
options, -1, false);
return Qnil;
}
/*
* call-seq:
* MessageBuilderContext.proto3_optional(name, type, number,
* type_class = nil, options = nil)
*
* Defines a true proto3 optional field (that tracks presence) on this message
* type with the given type, tag number, and type class (for message and enum
* fields). The type must be a Ruby symbol (as accepted by
* FieldDescriptor#type=) and the type_class must be a string, if present (as
* accepted by FieldDescriptor#submsg_name=).
*/
VALUE MessageBuilderContext_proto3_optional(int argc, VALUE* argv,
VALUE _self) {
VALUE name, type, number;
VALUE type_class, options = Qnil;
rb_scan_args(argc, argv, "32", &name, &type, &number, &type_class, &options);
// Allow passing (name, type, number, options) or
// (name, type, number, type_class, options)
if (argc == 4 && RB_TYPE_P(type_class, T_HASH)) {
options = type_class;
type_class = Qnil;
}
msgdef_add_field(_self, UPB_LABEL_OPTIONAL, name, type, number, type_class,
options, -1, true);
return Qnil;
}
/*
* call-seq:
* MessageBuilderContext.required(name, type, number, type_class = nil,
* options = nil)
*
* Defines a new required field on this message type with the given type, tag
* number, and type class (for message and enum fields). The type must be a Ruby
* symbol (as accepted by FieldDescriptor#type=) and the type_class must be a
* string, if present (as accepted by FieldDescriptor#submsg_name=).
*
* Proto3 does not have required fields, but this method exists for
* completeness. Any attempt to add a message type with required fields to a
* pool will currently result in an error.
*/
VALUE MessageBuilderContext_required(int argc, VALUE* argv, VALUE _self) {
VALUE name, type, number;
VALUE type_class, options = Qnil;
rb_scan_args(argc, argv, "32", &name, &type, &number, &type_class, &options);
// Allow passing (name, type, number, options) or
// (name, type, number, type_class, options)
if (argc == 4 && RB_TYPE_P(type_class, T_HASH)) {
options = type_class;
type_class = Qnil;
}
msgdef_add_field(_self, UPB_LABEL_REQUIRED, name, type, number, type_class,
options, -1, false);
return Qnil;
}
/*
* call-seq:
* MessageBuilderContext.repeated(name, type, number, type_class = nil)
*
* Defines a new repeated field on this message type with the given type, tag
* number, and type class (for message and enum fields). The type must be a Ruby
* symbol (as accepted by FieldDescriptor#type=) and the type_class must be a
* string, if present (as accepted by FieldDescriptor#submsg_name=).
*/
VALUE MessageBuilderContext_repeated(int argc, VALUE* argv, VALUE _self) {
VALUE name, type, number, type_class;
if (argc < 3) {
rb_raise(rb_eArgError, "Expected at least 3 arguments.");
}
name = argv[0];
type = argv[1];
number = argv[2];
type_class = (argc > 3) ? argv[3] : Qnil;
msgdef_add_field(_self, UPB_LABEL_REPEATED, name, type, number, type_class,
Qnil, -1, false);
return Qnil;
}
/*
* call-seq:
* MessageBuilderContext.map(name, key_type, value_type, number,
* value_type_class = nil)
*
* Defines a new map field on this message type with the given key and value
* types, tag number, and type class (for message and enum value types). The key
* type must be :int32/:uint32/:int64/:uint64, :bool, or :string. The value type
* type must be a Ruby symbol (as accepted by FieldDescriptor#type=) and the
* type_class must be a string, if present (as accepted by
* FieldDescriptor#submsg_name=).
*/
VALUE MessageBuilderContext_map(int argc, VALUE* argv, VALUE _self) {
DEFINE_SELF(MessageBuilderContext, self, _self);
VALUE name, key_type, value_type, number, type_class;
VALUE mapentry_desc_name;
FileBuilderContext* file_builder;
upb_strview msg_name;
if (argc < 4) {
rb_raise(rb_eArgError, "Expected at least 4 arguments.");
}
name = argv[0];
key_type = argv[1];
value_type = argv[2];
number = argv[3];
type_class = (argc > 4) ? argv[4] : Qnil;
// Validate the key type. We can't accept enums, messages, or floats/doubles
// as map keys. (We exclude these explicitly, and the field-descriptor setter
// below then ensures that the type is one of the remaining valid options.)
if (SYM2ID(key_type) == rb_intern("float") ||
SYM2ID(key_type) == rb_intern("double") ||
SYM2ID(key_type) == rb_intern("enum") ||
SYM2ID(key_type) == rb_intern("message")) {
rb_raise(rb_eArgError,
"Cannot add a map field with a float, double, enum, or message "
"type.");
}
file_builder = ruby_to_FileBuilderContext(self->file_builder);
// TODO(haberman): remove this restriction, maps are supported in proto2.
if (upb_strview_eql(
google_protobuf_FileDescriptorProto_syntax(file_builder->file_proto),
upb_strview_makez("proto2"))) {
rb_raise(rb_eArgError,
"Cannot add a native map field using proto2 syntax.");
}
// Create a new message descriptor for the map entry message, and create a
// repeated submessage field here with that type.
msg_name = google_protobuf_DescriptorProto_name(self->msg_proto);
mapentry_desc_name = rb_str_new(msg_name.data, msg_name.size);
mapentry_desc_name = rb_str_cat2(mapentry_desc_name, "_MapEntry_");
mapentry_desc_name =
rb_str_cat2(mapentry_desc_name, rb_id2name(SYM2ID(name)));
{
// message <msgname>_MapEntry_ { /* ... */ }
VALUE args[1] = {mapentry_desc_name};
VALUE types = rb_ary_new3(3, key_type, value_type, type_class);
rb_block_call(self->file_builder, rb_intern("add_message"), 1, args,
make_mapentry, types);
}
// If this file is in a package, we need to qualify the map entry type.
if (google_protobuf_FileDescriptorProto_has_package(file_builder->file_proto)) {
upb_strview package_view =
google_protobuf_FileDescriptorProto_package(file_builder->file_proto);
VALUE package = rb_str_new(package_view.data, package_view.size);
package = rb_str_cat2(package, ".");
mapentry_desc_name = rb_str_concat(package, mapentry_desc_name);
}
// repeated MapEntry <name> = <number>;
rb_funcall(_self, rb_intern("repeated"), 4, name,
ID2SYM(rb_intern("message")), number, mapentry_desc_name);
return Qnil;
}
/*
* call-seq:
* MessageBuilderContext.oneof(name, &block) => nil
*
* Creates a new OneofDescriptor with the given name, creates a
* OneofBuilderContext attached to that OneofDescriptor, evaluates the given
* block in the context of that OneofBuilderContext with #instance_eval, and
* then adds the oneof to the message.
*
* This is the recommended, idiomatic way to build oneof definitions.
*/
VALUE MessageBuilderContext_oneof(VALUE _self, VALUE name) {
DEFINE_SELF(MessageBuilderContext, self, _self);
size_t oneof_count;
FileBuilderContext* file_context =
ruby_to_FileBuilderContext(self->file_builder);
google_protobuf_OneofDescriptorProto* oneof_proto;
// Existing oneof_count becomes oneof_index.
google_protobuf_DescriptorProto_oneof_decl(self->msg_proto, &oneof_count);
// Create oneof_proto and set its name.
oneof_proto = google_protobuf_DescriptorProto_add_oneof_decl(
self->msg_proto, file_context->arena);
google_protobuf_OneofDescriptorProto_set_name(
oneof_proto, FileBuilderContext_strdup_sym(self->file_builder, name));
// Evaluate the block with the builder as argument.
{
VALUE args[2] = { INT2NUM(oneof_count), _self };
VALUE ctx = rb_class_new_instance(2, args, cOneofBuilderContext);
VALUE block = rb_block_proc();
rb_funcall_with_block(ctx, rb_intern("instance_eval"), 0, NULL, block);
}
return Qnil;
}
void MessageBuilderContext_add_synthetic_oneofs(VALUE _self) {
DEFINE_SELF(MessageBuilderContext, self, _self);
FileBuilderContext* file_context =
ruby_to_FileBuilderContext(self->file_builder);
size_t field_count, oneof_count;
google_protobuf_FieldDescriptorProto** fields =
google_protobuf_DescriptorProto_mutable_field(self->msg_proto, &field_count);
const google_protobuf_OneofDescriptorProto*const* oneofs =
google_protobuf_DescriptorProto_oneof_decl(self->msg_proto, &oneof_count);
VALUE names = rb_hash_new();
VALUE underscore = rb_str_new2("_");
size_t i;
// We have to build a set of all names, to ensure that synthetic oneofs are
// not creating conflicts.
for (i = 0; i < field_count; i++) {
upb_strview name = google_protobuf_FieldDescriptorProto_name(fields[i]);
rb_hash_aset(names, rb_str_new(name.data, name.size), Qtrue);
}
for (i = 0; i < oneof_count; i++) {
upb_strview name = google_protobuf_OneofDescriptorProto_name(oneofs[i]);
rb_hash_aset(names, rb_str_new(name.data, name.size), Qtrue);
}
for (i = 0; i < field_count; i++) {
google_protobuf_OneofDescriptorProto* oneof_proto;
VALUE oneof_name;
upb_strview field_name;
if (!google_protobuf_FieldDescriptorProto_proto3_optional(fields[i])) {
continue;
}
// Prepend '_' until we are no longer conflicting.
field_name = google_protobuf_FieldDescriptorProto_name(fields[i]);
oneof_name = rb_str_new(field_name.data, field_name.size);
while (rb_hash_lookup(names, oneof_name) != Qnil) {
oneof_name = rb_str_plus(underscore, oneof_name);
}
rb_hash_aset(names, oneof_name, Qtrue);
google_protobuf_FieldDescriptorProto_set_oneof_index(fields[i],
oneof_count++);
oneof_proto = google_protobuf_DescriptorProto_add_oneof_decl(
self->msg_proto, file_context->arena);
google_protobuf_OneofDescriptorProto_set_name(
oneof_proto, FileBuilderContext_strdup(self->file_builder, oneof_name));
}
}
// -----------------------------------------------------------------------------
// OneofBuilderContext.
// -----------------------------------------------------------------------------
DEFINE_CLASS(OneofBuilderContext,
"Google::Protobuf::Internal::OneofBuilderContext");
void OneofBuilderContext_mark(void* _self) {
OneofBuilderContext* self = _self;
rb_gc_mark(self->message_builder);
}
void OneofBuilderContext_free(void* _self) {
xfree(_self);
}
VALUE OneofBuilderContext_alloc(VALUE klass) {
OneofBuilderContext* self = ALLOC(OneofBuilderContext);
VALUE ret = TypedData_Wrap_Struct(
klass, &_OneofBuilderContext_type, self);
self->oneof_index = 0;
self->message_builder = Qnil;
return ret;
}
void OneofBuilderContext_register(VALUE module) {
VALUE klass = rb_define_class_under(
module, "OneofBuilderContext", rb_cObject);
rb_define_alloc_func(klass, OneofBuilderContext_alloc);
rb_define_method(klass, "initialize",
OneofBuilderContext_initialize, 2);
rb_define_method(klass, "optional", OneofBuilderContext_optional, -1);
rb_gc_register_address(&cOneofBuilderContext);
cOneofBuilderContext = klass;
}
/*
* call-seq:
* OneofBuilderContext.new(oneof_index, message_builder) => context
*
* Create a new oneof builder context around the given oneof descriptor and
* builder context. This class is intended to serve as a DSL context to be used
* with #instance_eval.
*/
VALUE OneofBuilderContext_initialize(VALUE _self,
VALUE oneof_index,
VALUE message_builder) {
DEFINE_SELF(OneofBuilderContext, self, _self);
self->oneof_index = NUM2INT(oneof_index);
self->message_builder = message_builder;
return Qnil;
}
/*
* call-seq:
* OneofBuilderContext.optional(name, type, number, type_class = nil,
* default_value = nil)
*
* Defines a new optional field in this oneof with the given type, tag number,
* and type class (for message and enum fields). The type must be a Ruby symbol
* (as accepted by FieldDescriptor#type=) and the type_class must be a string,
* if present (as accepted by FieldDescriptor#submsg_name=).
*/
VALUE OneofBuilderContext_optional(int argc, VALUE* argv, VALUE _self) {
DEFINE_SELF(OneofBuilderContext, self, _self);
VALUE name, type, number;
VALUE type_class, options = Qnil;
rb_scan_args(argc, argv, "32", &name, &type, &number, &type_class, &options);
msgdef_add_field(self->message_builder, UPB_LABEL_OPTIONAL, name, type,
number, type_class, options, self->oneof_index, false);
return Qnil;
}
// -----------------------------------------------------------------------------
// EnumBuilderContext.
// -----------------------------------------------------------------------------
DEFINE_CLASS(EnumBuilderContext,
"Google::Protobuf::Internal::EnumBuilderContext");
void EnumBuilderContext_mark(void* _self) {
EnumBuilderContext* self = _self;
rb_gc_mark(self->file_builder);
}
void EnumBuilderContext_free(void* _self) {
xfree(_self);
}
VALUE EnumBuilderContext_alloc(VALUE klass) {
EnumBuilderContext* self = ALLOC(EnumBuilderContext);
VALUE ret = TypedData_Wrap_Struct(
klass, &_EnumBuilderContext_type, self);
self->enum_proto = NULL;
self->file_builder = Qnil;
return ret;
}
void EnumBuilderContext_register(VALUE module) {
VALUE klass = rb_define_class_under(
module, "EnumBuilderContext", rb_cObject);
rb_define_alloc_func(klass, EnumBuilderContext_alloc);
rb_define_method(klass, "initialize", EnumBuilderContext_initialize, 2);
rb_define_method(klass, "value", EnumBuilderContext_value, 2);
rb_gc_register_address(&cEnumBuilderContext);
cEnumBuilderContext = klass;
}
/*
* call-seq:
* EnumBuilderContext.new(file_builder) => context
*
* Create a new builder context around the given enum descriptor. This class is
* intended to serve as a DSL context to be used with #instance_eval.
*/
VALUE EnumBuilderContext_initialize(VALUE _self, VALUE _file_builder,
VALUE name) {
DEFINE_SELF(EnumBuilderContext, self, _self);
FileBuilderContext* file_builder = ruby_to_FileBuilderContext(_file_builder);
google_protobuf_FileDescriptorProto* file_proto = file_builder->file_proto;
self->file_builder = _file_builder;
self->enum_proto = google_protobuf_FileDescriptorProto_add_enum_type(
file_proto, file_builder->arena);
google_protobuf_EnumDescriptorProto_set_name(
self->enum_proto, FileBuilderContext_strdup(_file_builder, name));
return Qnil;
}
/*
* call-seq:
* EnumBuilder.add_value(name, number)
*
* Adds the given name => number mapping to the enum type. Name must be a Ruby
* symbol.
*/
VALUE EnumBuilderContext_value(VALUE _self, VALUE name, VALUE number) {
DEFINE_SELF(EnumBuilderContext, self, _self);
FileBuilderContext* file_builder =
ruby_to_FileBuilderContext(self->file_builder);
google_protobuf_EnumValueDescriptorProto* enum_value;
enum_value = google_protobuf_EnumDescriptorProto_add_value(
self->enum_proto, file_builder->arena);
google_protobuf_EnumValueDescriptorProto_set_name(
enum_value, FileBuilderContext_strdup_sym(self->file_builder, name));
google_protobuf_EnumValueDescriptorProto_set_number(enum_value,
NUM2INT(number));
return Qnil;
}
// -----------------------------------------------------------------------------
// FileBuilderContext.
// -----------------------------------------------------------------------------
DEFINE_CLASS(FileBuilderContext,
"Google::Protobuf::Internal::FileBuilderContext");
void FileBuilderContext_mark(void* _self) {
FileBuilderContext* self = _self;
rb_gc_mark(self->descriptor_pool);
}
void FileBuilderContext_free(void* _self) {
FileBuilderContext* self = _self;
upb_arena_free(self->arena);
xfree(self);
}
upb_strview FileBuilderContext_strdup2(VALUE _self, const char *str) {
DEFINE_SELF(FileBuilderContext, self, _self);
upb_strview ret;
char *data;
ret.size = strlen(str);
data = upb_malloc(upb_arena_alloc(self->arena), ret.size + 1);
ret.data = data;
memcpy(data, str, ret.size);
/* Null-terminate required by rewrite_enum_defaults() above. */
data[ret.size] = '\0';
return ret;
}
upb_strview FileBuilderContext_strdup(VALUE _self, VALUE rb_str) {
return FileBuilderContext_strdup2(_self, get_str(rb_str));
}
upb_strview FileBuilderContext_strdup_sym(VALUE _self, VALUE rb_sym) {
Check_Type(rb_sym, T_SYMBOL);
return FileBuilderContext_strdup(_self, rb_id2str(SYM2ID(rb_sym)));
}
VALUE FileBuilderContext_alloc(VALUE klass) {
FileBuilderContext* self = ALLOC(FileBuilderContext);
VALUE ret = TypedData_Wrap_Struct(klass, &_FileBuilderContext_type, self);
self->arena = upb_arena_new();
self->file_proto = google_protobuf_FileDescriptorProto_new(self->arena);
self->descriptor_pool = Qnil;
return ret;
}
void FileBuilderContext_register(VALUE module) {
VALUE klass = rb_define_class_under(module, "FileBuilderContext", rb_cObject);
rb_define_alloc_func(klass, FileBuilderContext_alloc);
rb_define_method(klass, "initialize", FileBuilderContext_initialize, 3);
rb_define_method(klass, "add_message", FileBuilderContext_add_message, 1);
rb_define_method(klass, "add_enum", FileBuilderContext_add_enum, 1);
rb_gc_register_address(&cFileBuilderContext);
cFileBuilderContext = klass;
}
/*
* call-seq:
* FileBuilderContext.new(descriptor_pool) => context
*
* Create a new file builder context for the given file descriptor and
* builder context. This class is intended to serve as a DSL context to be used
* with #instance_eval.
*/
VALUE FileBuilderContext_initialize(VALUE _self, VALUE descriptor_pool,
VALUE name, VALUE options) {
DEFINE_SELF(FileBuilderContext, self, _self);
self->descriptor_pool = descriptor_pool;
google_protobuf_FileDescriptorProto_set_name(
self->file_proto, FileBuilderContext_strdup(_self, name));
// Default syntax for Ruby is proto3.
google_protobuf_FileDescriptorProto_set_syntax(
self->file_proto,
FileBuilderContext_strdup(_self, rb_str_new2("proto3")));
if (options != Qnil) {
VALUE syntax;
Check_Type(options, T_HASH);
syntax = rb_hash_lookup2(options, ID2SYM(rb_intern("syntax")), Qnil);
if (syntax != Qnil) {
VALUE syntax_str;
Check_Type(syntax, T_SYMBOL);
syntax_str = rb_id2str(SYM2ID(syntax));
google_protobuf_FileDescriptorProto_set_syntax(
self->file_proto, FileBuilderContext_strdup(_self, syntax_str));
}
}
return Qnil;
}
/*
* call-seq:
* FileBuilderContext.add_message(name, &block)
*
* Creates a new, empty descriptor with the given name, and invokes the block in
* the context of a MessageBuilderContext on that descriptor. The block can then
* call, e.g., MessageBuilderContext#optional and MessageBuilderContext#repeated
* methods to define the message fields.
*
* This is the recommended, idiomatic way to build message definitions.
*/
VALUE FileBuilderContext_add_message(VALUE _self, VALUE name) {
VALUE args[2] = { _self, name };
VALUE ctx = rb_class_new_instance(2, args, cMessageBuilderContext);
VALUE block = rb_block_proc();
rb_funcall_with_block(ctx, rb_intern("instance_eval"), 0, NULL, block);
MessageBuilderContext_add_synthetic_oneofs(ctx);
return Qnil;
}
/*
* call-seq:
* FileBuilderContext.add_enum(name, &block)
*
* Creates a new, empty enum descriptor with the given name, and invokes the
* block in the context of an EnumBuilderContext on that descriptor. The block
* can then call EnumBuilderContext#add_value to define the enum values.
*
* This is the recommended, idiomatic way to build enum definitions.
*/
VALUE FileBuilderContext_add_enum(VALUE _self, VALUE name) {
VALUE args[2] = { _self, name };
VALUE ctx = rb_class_new_instance(2, args, cEnumBuilderContext);
VALUE block = rb_block_proc();
rb_funcall_with_block(ctx, rb_intern("instance_eval"), 0, NULL, block);
return Qnil;
}
void FileBuilderContext_build(VALUE _self) {
DEFINE_SELF(FileBuilderContext, self, _self);
DescriptorPool* pool = ruby_to_DescriptorPool(self->descriptor_pool);
upb_status status;
rewrite_enum_defaults(pool->symtab, self->file_proto);
rewrite_names(_self, self->file_proto);
upb_status_clear(&status);
if (!upb_symtab_addfile(pool->symtab, self->file_proto, &status)) {
rb_raise(cTypeError, "Unable to add defs to DescriptorPool: %s",
upb_status_errmsg(&status));
}
}
// -----------------------------------------------------------------------------
// Builder.
// -----------------------------------------------------------------------------
DEFINE_CLASS(Builder, "Google::Protobuf::Internal::Builder");
void Builder_mark(void* _self) {
Builder* self = _self;
rb_gc_mark(self->descriptor_pool);
rb_gc_mark(self->default_file_builder);
}
void Builder_free(void* _self) {
xfree(_self);
}
VALUE Builder_alloc(VALUE klass) {
Builder* self = ALLOC(Builder);
VALUE ret = TypedData_Wrap_Struct(
klass, &_Builder_type, self);
self->descriptor_pool = Qnil;
self->default_file_builder = Qnil;
return ret;
}
void Builder_register(VALUE module) {
VALUE klass = rb_define_class_under(module, "Builder", rb_cObject);
rb_define_alloc_func(klass, Builder_alloc);
rb_define_method(klass, "initialize", Builder_initialize, 1);
rb_define_method(klass, "add_file", Builder_add_file, -1);
rb_define_method(klass, "add_message", Builder_add_message, 1);
rb_define_method(klass, "add_enum", Builder_add_enum, 1);
rb_gc_register_address(&cBuilder);
cBuilder = klass;
}
/*
* call-seq:
* Builder.new(descriptor_pool) => builder
*
* Creates a new Builder. A Builder can accumulate a set of new message and enum
* descriptors and atomically register them into a pool in a way that allows for
* (co)recursive type references.
*/
VALUE Builder_initialize(VALUE _self, VALUE pool) {
DEFINE_SELF(Builder, self, _self);
self->descriptor_pool = pool;
self->default_file_builder = Qnil; // Created lazily if needed.
return Qnil;
}
/*
* call-seq:
* Builder.add_file(name, options = nil, &block)
*
* Creates a new, file descriptor with the given name and options and invokes
* the block in the context of a FileBuilderContext on that descriptor. The
* block can then call FileBuilderContext#add_message or
* FileBuilderContext#add_enum to define new messages or enums, respectively.
*
* This is the recommended, idiomatic way to build file descriptors.
*/
VALUE Builder_add_file(int argc, VALUE* argv, VALUE _self) {
DEFINE_SELF(Builder, self, _self);
VALUE name, options;
VALUE ctx;
VALUE block;
rb_scan_args(argc, argv, "11", &name, &options);
{
VALUE args[3] = { self->descriptor_pool, name, options };
ctx = rb_class_new_instance(3, args, cFileBuilderContext);
}
block = rb_block_proc();
rb_funcall_with_block(ctx, rb_intern("instance_eval"), 0, NULL, block);
FileBuilderContext_build(ctx);
return Qnil;
}
static VALUE Builder_get_default_file(VALUE _self) {
DEFINE_SELF(Builder, self, _self);
/* Lazily create only if legacy builder-level methods are called. */
if (self->default_file_builder == Qnil) {
VALUE name = rb_str_new2("ruby_default_file.proto");
VALUE args [3] = { self->descriptor_pool, name, rb_hash_new() };
self->default_file_builder =
rb_class_new_instance(3, args, cFileBuilderContext);
}
return self->default_file_builder;
}
/*
* call-seq:
* Builder.add_message(name, &block)
*
* Old and deprecated way to create a new descriptor.
* See FileBuilderContext.add_message for the recommended way.
*
* Exists for backwards compatibility to allow building descriptor pool for
* files generated by protoc which don't add messages within "add_file" block.
* Descriptors created this way get assigned to a default empty FileDescriptor.
*/
VALUE Builder_add_message(VALUE _self, VALUE name) {
VALUE file_builder = Builder_get_default_file(_self);
rb_funcall_with_block(file_builder, rb_intern("add_message"), 1, &name,
rb_block_proc());
return Qnil;
}
/*
* call-seq:
* Builder.add_enum(name, &block)
*
* Old and deprecated way to create a new enum descriptor.
* See FileBuilderContext.add_enum for the recommended way.
*
* Exists for backwards compatibility to allow building descriptor pool for
* files generated by protoc which don't add enums within "add_file" block.
* Enum descriptors created this way get assigned to a default empty
* FileDescriptor.
*/
VALUE Builder_add_enum(VALUE _self, VALUE name) {
VALUE file_builder = Builder_get_default_file(_self);
rb_funcall_with_block(file_builder, rb_intern("add_enum"), 1, &name,
rb_block_proc());
return Qnil;
}
/* This method is hidden from Ruby, and only called directly from
* DescriptorPool_build(). */
VALUE Builder_build(VALUE _self) {
DEFINE_SELF(Builder, self, _self);
if (self->default_file_builder != Qnil) {
FileBuilderContext_build(self->default_file_builder);
self->default_file_builder = Qnil;
}
return Qnil;
}
static VALUE get_def_obj(VALUE _descriptor_pool, const void* ptr, VALUE klass) {
DEFINE_SELF(DescriptorPool, descriptor_pool, _descriptor_pool);
VALUE key = ULL2NUM((intptr_t)ptr);
VALUE def;
def = rb_hash_aref(descriptor_pool->def_to_descriptor, key);
if (ptr == NULL) {
return Qnil;
}
if (def == Qnil) {
// Lazily create wrapper object.
VALUE args[3] = { c_only_cookie, _descriptor_pool, key };
def = rb_class_new_instance(3, args, klass);
rb_hash_aset(descriptor_pool->def_to_descriptor, key, def);
// For message defs, we now eagerly get/create descriptors for all
// submessages. We will need these anyway to parse or serialize this
// message type. But more importantly, we must do this now so that
// add_handlers_for_message() (which calls get_msgdef_obj()) does *not*
// need to create a Ruby object or insert into a Ruby Hash. We need to
// avoid triggering GC, which can switch Ruby threads and re-enter our
// C extension from a different thread. This wreaks havoc on our state
// if we were in the middle of building handlers.
if (klass == cDescriptor) {
const upb_msgdef *m = ptr;
upb_msg_field_iter it;
for (upb_msg_field_begin(&it, m);
!upb_msg_field_done(&it);
upb_msg_field_next(&it)) {
const upb_fielddef* f = upb_msg_iter_field(&it);
if (upb_fielddef_issubmsg(f)) {
get_msgdef_obj(_descriptor_pool, upb_fielddef_msgsubdef(f));
}
}
}
}
return def;
}
VALUE get_msgdef_obj(VALUE descriptor_pool, const upb_msgdef* def) {
return get_def_obj(descriptor_pool, def, cDescriptor);
}
VALUE get_enumdef_obj(VALUE descriptor_pool, const upb_enumdef* def) {
return get_def_obj(descriptor_pool, def, cEnumDescriptor);
}
VALUE get_fielddef_obj(VALUE descriptor_pool, const upb_fielddef* def) {
return get_def_obj(descriptor_pool, def, cFieldDescriptor);
}
VALUE get_filedef_obj(VALUE descriptor_pool, const upb_filedef* def) {
return get_def_obj(descriptor_pool, def, cFileDescriptor);
}
VALUE get_oneofdef_obj(VALUE descriptor_pool, const upb_oneofdef* def) {
return get_def_obj(descriptor_pool, def, cOneofDescriptor);
}