Files
carbon-lang/common/pretty_stack_trace_function.h
Jon Ross-Perkins fcf445b517 Print captured stdout/stderr on test crashes (#5740)
Related to #5733, but as a general fix, this will hopefully make it a
little easier to debug test/autoupdate crashes.
2025-06-26 20:28:21 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#ifndef CARBON_COMMON_PRETTY_STACK_TRACE_FUNCTION_H_
#define CARBON_COMMON_PRETTY_STACK_TRACE_FUNCTION_H_
#include <functional>
#include "llvm/Support/PrettyStackTrace.h"
namespace Carbon {
// Calls `fn` as part of LLVM's pretty stack trace support. Implementations
// should typically have a terminating `\n`.
class PrettyStackTraceFunction : public llvm::PrettyStackTraceEntry {
public:
explicit PrettyStackTraceFunction(
std::function<auto(llvm::raw_ostream&)->void> fn)
: fn_(std::move(fn)) {}
~PrettyStackTraceFunction() override = default;
auto print(llvm::raw_ostream& output) const -> void override { fn_(output); }
private:
const std::function<auto(llvm::raw_ostream&)->void> fn_;
};
} // namespace Carbon
#endif // CARBON_COMMON_PRETTY_STACK_TRACE_FUNCTION_H_