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Richard SmithandJon Ross-Perkins
187a3608df
Add these interfaces to the core library. For now, they're two separate interfaces because we don't yet support one interface extending another. This collapses a lot of the layering in check: for example, the call building logic depends on implicit conversions, conversions now depend on the overloaded operator machinery, and that machinery depends on building calls. In passing, improve the diagnostics for failing to find a name required from the prelude. Also convert all the transitively-called code from `NodeId` to `LocId` given the latter is what the conversion machinery has available. --------- Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
40 lines
1.3 KiB
C++
40 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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static 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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buffer_.flush();
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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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