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Contents
// Copyright 2024 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/core/lib/gprpp/dump_args.h"
#include "absl/log/check.h"
#include "absl/strings/ascii.h"
#include "absl/strings/string_view.h"
namespace grpc_core {
namespace dump_args_detail {
std::ostream& operator<<(std::ostream& out, const DumpArgs& args) {
// Parse the argument string into a vector of keys.
// #__VA_ARGS__ produces a stringified version of the arguments passed to the
// macro. It's comma separated, and we can use that to split the string into
// keys. Those keys might include parenthesis for e.g. argument lists, and so
// we need to skip commas that are inside parenthesis.
std::vector<absl::string_view> keys;
int depth = 0;
const char* start = args.arg_string_;
for (const char* p = args.arg_string_; *p; ++p) {
if (*p == '(') {
++depth;
} else if (*p == ')') {
--depth;
} else if (*p == ',' && depth == 0) {
keys.push_back(absl::string_view(start, p - start));
start = p + 1;
}
}
keys.push_back(start);
CHECK_EQ(keys.size(), args.arg_dumpers_.size());
for (size_t i = 0; i < keys.size(); i++) {
if (i != 0) out << ", ";
out << absl::StripAsciiWhitespace(keys[i]) << " = ";
args.arg_dumpers_[i](out);
}
return out;
}
} // namespace dump_args_detail
} // namespace grpc_core
Version data entries
5 entries across 5 versions & 1 rubygems