mirror of
https://github.com/protocolbuffers/protobuf
synced 2026-08-26 02:23:14 -04:00
a9bc366522
Besides unnecessary inconsistency on our C symbols, double underscores anywhere in the name are reserved for stdlib use. In practice its unlikely these symbols would ever hit a collision problem (maybe the prior name 'utf8_debug_string' with no prefix as having some risk), but safer to just standardize on this and have no concerns going forward. PiperOrigin-RevId: 648709299
90 lines
6.8 KiB
C++
90 lines
6.8 KiB
C++
#ifndef GOOGLE_PROTOBUF_RUST_CPP_KERNEL_MAP_H__
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#define GOOGLE_PROTOBUF_RUST_CPP_KERNEL_MAP_H__
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// Defines concrete thunks to access typed map methods from Rust.
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#define __PB_RUST_EXPOSE_SCALAR_MAP_METHODS( \
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key_ty, rust_key_ty, ffi_key_ty, to_cpp_key, to_ffi_key, value_ty, \
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rust_value_ty, ffi_value_ty, to_cpp_value, to_ffi_value) \
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google::protobuf::Map<key_ty, value_ty>* \
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rust_proto_thunk_Map_##rust_key_ty##_##rust_value_ty##_new() { \
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return new google::protobuf::Map<key_ty, value_ty>(); \
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} \
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void rust_proto_thunk_Map_##rust_key_ty##_##rust_value_ty##_free( \
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google::protobuf::Map<key_ty, value_ty>* m) { \
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delete m; \
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} \
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void rust_proto_thunk_Map_##rust_key_ty##_##rust_value_ty##_clear( \
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google::protobuf::Map<key_ty, value_ty>* m) { \
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m->clear(); \
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} \
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size_t rust_proto_thunk_Map_##rust_key_ty##_##rust_value_ty##_size( \
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const google::protobuf::Map<key_ty, value_ty>* m) { \
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return m->size(); \
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} \
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bool rust_proto_thunk_Map_##rust_key_ty##_##rust_value_ty##_insert( \
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google::protobuf::Map<key_ty, value_ty>* m, ffi_key_ty key, ffi_value_ty value) { \
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auto iter_and_inserted = m->try_emplace(to_cpp_key, to_cpp_value); \
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if (!iter_and_inserted.second) { \
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iter_and_inserted.first->second = to_cpp_value; \
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} \
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return iter_and_inserted.second; \
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} \
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bool rust_proto_thunk_Map_##rust_key_ty##_##rust_value_ty##_get( \
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const google::protobuf::Map<key_ty, value_ty>* m, ffi_key_ty key, \
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ffi_value_ty* value) { \
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auto cpp_key = to_cpp_key; \
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auto it = m->find(cpp_key); \
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if (it == m->end()) { \
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return false; \
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} \
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auto& cpp_value = it->second; \
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*value = to_ffi_value; \
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return true; \
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} \
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google::protobuf::internal::UntypedMapIterator \
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rust_proto_thunk_Map_##rust_key_ty##_##rust_value_ty##_iter( \
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const google::protobuf::Map<key_ty, value_ty>* m) { \
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return google::protobuf::internal::UntypedMapIterator::FromTyped(m->cbegin()); \
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} \
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void rust_proto_thunk_Map_##rust_key_ty##_##rust_value_ty##_iter_get( \
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const google::protobuf::internal::UntypedMapIterator* iter, ffi_key_ty* key, \
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ffi_value_ty* value) { \
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auto typed_iter = \
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iter->ToTyped<google::protobuf::Map<key_ty, value_ty>::const_iterator>(); \
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const auto& cpp_key = typed_iter->first; \
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const auto& cpp_value = typed_iter->second; \
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*key = to_ffi_key; \
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*value = to_ffi_value; \
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} \
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bool rust_proto_thunk_Map_##rust_key_ty##_##rust_value_ty##_remove( \
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google::protobuf::Map<key_ty, value_ty>* m, ffi_key_ty key, ffi_value_ty* value) { \
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auto cpp_key = to_cpp_key; \
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auto num_removed = m->erase(cpp_key); \
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return num_removed > 0; \
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}
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// Defines the map thunks for all supported key types for a given value type.
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#define __PB_RUST_EXPOSE_SCALAR_MAP_METHODS_FOR_VALUE_TYPE( \
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value_ty, rust_value_ty, ffi_value_ty, to_cpp_value, to_ffi_value) \
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__PB_RUST_EXPOSE_SCALAR_MAP_METHODS(int32_t, i32, int32_t, key, cpp_key, \
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value_ty, rust_value_ty, ffi_value_ty, \
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to_cpp_value, to_ffi_value); \
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__PB_RUST_EXPOSE_SCALAR_MAP_METHODS(uint32_t, u32, uint32_t, key, cpp_key, \
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value_ty, rust_value_ty, ffi_value_ty, \
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to_cpp_value, to_ffi_value); \
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__PB_RUST_EXPOSE_SCALAR_MAP_METHODS(bool, bool, bool, key, cpp_key, \
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value_ty, rust_value_ty, ffi_value_ty, \
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to_cpp_value, to_ffi_value); \
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__PB_RUST_EXPOSE_SCALAR_MAP_METHODS(uint64_t, u64, uint64_t, key, cpp_key, \
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value_ty, rust_value_ty, ffi_value_ty, \
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to_cpp_value, to_ffi_value); \
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__PB_RUST_EXPOSE_SCALAR_MAP_METHODS(int64_t, i64, int64_t, key, cpp_key, \
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value_ty, rust_value_ty, ffi_value_ty, \
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to_cpp_value, to_ffi_value); \
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__PB_RUST_EXPOSE_SCALAR_MAP_METHODS( \
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std::string, ProtoString, google::protobuf::rust_internal::PtrAndLen, \
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std::string(key.ptr, key.len), \
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google::protobuf::rust_internal::PtrAndLen(cpp_key.data(), cpp_key.size()), \
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value_ty, rust_value_ty, ffi_value_ty, to_cpp_value, to_ffi_value);
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#endif // GOOGLE_PROTOBUF_RUST_CPP_KERNEL_MAP_H__
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