fidl/lib/c_generator.cpp

80 void EmitMemberDecl(std::ostream* file, const CGenerator::Member& member) {
81     *file << member.type << " " << member.name;
82     for (uint32_t array_count : member.array_counts) {
87 void EmitMethodInParamDecl(std::ostream* file, const CGenerator::Member& member) {
88     switch (member.kind) {
90         *file << "const " << member.type << " " << member.name;
91         for (uint32_t array_count : member.array_counts) {
96         *file << "const " << member.element_type << "* " << member.name << "_data, "
97               << "size_t " << member.name << "_count";
100         *file << "const char* " << member.name << "_data, "
101               << "size_t " << member.name << "_size";
106         *file << member.type << " " << member.name;
109         switch (member.decl_kind) {
111             assert(false && "bad decl kind for member");
115             *file << member.type << " " << member.name;
120             switch (member.nullability) {
122                 *file << "const " << member.type << " " << member.name;
125                 *file << "const " << member.type << "* " << member.name;
134 void EmitMethodOutParamDecl(std::ostream* file, const CGenerator::Member& member) {
135     switch (member.kind) {
137         *file << member.type << " out_" << member.name;
138         for (uint32_t array_count : member.array_counts) {
142         *file << member.element_type << "* " << member.name << "_buffer, "
143               << "size_t " << member.name << "_capacity, "
144               << "size_t* out_" << member.name << "_count";
147         *file << "char* " << member.name << "_buffer, "
148               << "size_t " << member.name << "_capacity, "
149               << "size_t* out_" << member.name << "_size";
154         *file << member.type << "* out_" << member.name;
157         switch (member.decl_kind) {
159             assert(false && "bad decl kind for member");
163             *file << member.type << "* out_" << member.name;
168             switch (member.nullability) {
170                 *file << member.type << " out_" << member.name;
173                 *file << member.type << "* out_" << member.name;
186     for (const auto& member : request) {
188         EmitMethodInParamDecl(file, member);
190     for (auto member : response) {
192         EmitMethodOutParamDecl(file, member);
201     for (const auto& member : request) {
203         EmitMethodInParamDecl(file, member);
226     for (const auto& member : response) {
228         EmitMethodInParamDecl(file, member);
233 bool IsStoredOutOfLine(const CGenerator::Member& member) {
234     if (member.kind == flat::Type::Kind::kVector ||
235         member.kind == flat::Type::Kind::kString)
237     if (member.kind == flat::Type::Kind::kIdentifier) {
238         return member.nullability == types::Nullability::kNullable &&
239                (member.decl_kind == flat::Decl::Kind::kStruct || member.decl_kind == flat::Decl::Kind::kUnion);
246     for (const auto& member : params) {
247         if (member.kind == flat::Type::Kind::kVector)
248             *file << " + FIDL_ALIGN(sizeof(*" << member.name << "_data) * " << member.name << "_count)";
249         else if (member.kind == flat::Type::Kind::kString)
250             *file << " + FIDL_ALIGN(" << member.name << "_size)";
251         else if (IsStoredOutOfLine(member))
252             *file << " + (" << member.name << " ? sizeof(*" << member.name << ") : 0u)";
258     for (const auto& member : params) {
259         if (member.kind == flat::Type::Kind::kVector)
260             *file << " + FIDL_ALIGN(sizeof(*" << member.name << "_buffer) * " << member.name << "_capacity)";
261         else if (member.kind == flat::Type::Kind::kString)
262             *file << " + FIDL_ALIGN(" << member.name << "_capacity)";
263         else if (IsStoredOutOfLine(member))
264             *file << " + (out_" << member.name << " ? sizeof(*out_" << member.name << ") : 0u)";
274     for (const auto& member : params) {
275         if (IsStoredOutOfLine(member))
287     for (const auto& member : request) {
288         const auto& name = member.name;
289         switch (member.kind) {
312             switch (member.decl_kind) {
314                 assert(false && "bad decl kind for member");
325                 switch (member.nullability) {
607     for (const auto& member : members) {
609         EmitMemberDecl(&file_, member);
621     for (const auto& member : members) {
623         EmitMemberDecl(&file_, member);
742     for (const auto& member : named_enum.enum_info.members) {
743         std::string member_name = named_enum.name + "_" + NameIdentifier(member.name);
745         EnumValue(named_enum.enum_info.type, member.value.get(), library_, &member_value);
856     for (const auto& member : named_union.union_info.members) {
857         std::string tag_name = NameUnionTag(named_union.name, member);
971                 for (const auto& member : response) {
972                     if (member.kind == flat::Type::Kind::kVector) {
975                         file_ << "(_response->" << member.name << ".count > " << member.name << "_capacity)";
976                     } else if (member.kind == flat::Type::Kind::kString) {
979                         file_ << "(_response->" << member.name << ".size > " << member.name << "_capacity)";
980                     } else if (IsStoredOutOfLine(member)) {
983                         file_ << "((uintptr_t)_response->" << member.name << " == FIDL_ALLOC_PRESENT && out_" << member.name << " == NULL)";
1009             for (const auto& member : response) {
1010                 const auto& name = member.name;
1011                 switch (member.kind) {
1029                     switch (member.decl_kind) {
1031                         assert(false && "bad decl kind for member");
1042                         switch (member.nullability) {
1047                             // We don't have a great way of signaling that the optional response member
1127         for (const auto& member : request) {
1128             switch (member.kind) {
1133                 file_ << ", request->" << member.name;
1136                 file_ << ", (" << member.element_type << "*)request->" << member.name << ".data"
1137                       << ", request->" << member.name << ".count";
1140                 file_ << ", request->" << member.name << ".data"
1141                       << ", request->" << member.name << ".size";
1144                 switch (member.decl_kind) {
1146                     assert(false && "bad decl kind for member");
1150                     file_ << ", request->" << member.name;
1157                     switch (member.nullability) {
1159                         file_ << ", request->" << member.name;
1162                         file_ << ", &(request->" << member.name << ")";