1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_LOGGING_RUST_LOG_INTEGRATION_H_
#define BASE_LOGGING_RUST_LOG_INTEGRATION_H_
#include <stddef.h>
#include <stdint.h>
#include "base/base_export.h"
#include "base/logging.h"
#include "base/logging/log_severity.h"
#include "third_party/rust/cxx/v1/cxx.h"
namespace logging {
namespace internal {
// Opaquely wraps a Rust std::fmt::Arguments object, which can be turned into a
// string but must be done so from a Rust stack frame with the help of
// LogMessageRustWrapper below.
struct RustFmtArguments;
// Receives a log line from Rust and forwards it to base logging, because
// logging::LogMessage is not accessible from Rust yet with our current interop
// tools.
//
// TODO(danakj): Should this helper function be replaced with C-like apis next
// to logging::LogMessage that Rust uses more directly?
void print_rust_log(const RustFmtArguments& msg,
const char* file,
int32_t line,
int32_t severity,
bool verbose);
// Wraps a LogMessage object so that Rust code can write to its ostream.
class LogMessageRustWrapper {
public:
LogMessageRustWrapper(const char* file,
int line,
::logging::LogSeverity severity);
void write_to_stream(rust::Str str);
private:
::logging::LogMessage log_message;
};
} // namespace internal
} // namespace logging
#endif // BASE_LOGGING_RUST_LOG_INTEGRATION_H_
|
