mirror of
https://github.com/carbon-language/carbon-lang.git
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Jon Ross-Perkins
5fa6f04d83
This also fixes a couple issues with the newer version; makeArrayRef is deprecated, and ErrorHandling is now needed for llvm_unreachable.
38 lines
1.3 KiB
C++
38 lines
1.3 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "common/check_internal.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/Signals.h"
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namespace Carbon::Internal {
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// Prints the buffered message.
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auto PrintAfterStackTrace(void* str) -> void {
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llvm::errs() << reinterpret_cast<char*>(str);
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}
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ExitingStream::~ExitingStream() {
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llvm_unreachable(
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"Exiting streams should only be constructed by check.h macros that "
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"ensure the special operator| exits the program prior to their "
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"destruction!");
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}
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auto ExitingStream::Done() -> void {
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buffer_ << "\n";
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// Register another signal handler to print the buffered message. This is
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// because we want it at the bottom of output, after LLVM's builtin stack
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// output, rather than the top.
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llvm::sys::AddSignalHandler(PrintAfterStackTrace,
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const_cast<char*>(buffer_str_.c_str()));
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// It's useful to exit the program with `std::abort()` for integration with
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// debuggers and other tools. We also assume LLVM's exit handling is
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// installed, which will stack trace on `std::abort()`.
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std::abort();
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}
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} // namespace Carbon::Internal
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