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f3ff561c6f
This is phase-1 of switching from llvm::Optional to std::optional in the
next rebranch. llvm::Optional was removed from upstream LLVM, so we need
to migrate off rather soon. On Darwin, std::optional, and llvm::Optional
have the same layout, so we don't need to be as concerned about ABI
beyond the name mangling. `llvm::Optional` is only returned from one
function in
```
getStandardTypeSubst(StringRef TypeName,
bool allowConcurrencyManglings);
```
It's the return value, so it should not impact the mangling of the
function, and the layout is the same as `std::optional`, so it should be
mostly okay. This function doesn't appear to have users, and the ABI was
already broken 2 years ago for concurrency and no one seemed to notice
so this should be "okay".
I'm doing the migration incrementally so that folks working on main can
cherry-pick back to the release/5.9 branch. Once 5.9 is done and locked
away, then we can go through and finish the replacement. Since `None`
and `Optional` show up in contexts where they are not `llvm::None` and
`llvm::Optional`, I'm preparing the work now by going through and
removing the namespace unwrapping and making the `llvm` namespace
explicit. This should make it fairly mechanical to go through and
replace llvm::Optional with std::optional, and llvm::None with
std::nullopt. It's also a change that can be brought onto the
release/5.9 with minimal impact. This should be an NFC change.
79 lines
2.9 KiB
C++
79 lines
2.9 KiB
C++
//===----- ParseableOutput.h - Helpers for parseable output ------- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// Helpers for emitting the compiler's parseable output.
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///
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_PARSEABLEOUTPUT_H
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#define SWIFT_PARSEABLEOUTPUT_H
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#include "swift/Basic/LLVM.h"
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#include "swift/Basic/TaskQueue.h"
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#include "swift/Basic/FileTypes.h"
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namespace swift {
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namespace parseable_output {
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/// Quasi-PIDs are _negative_ PID-like unique keys used to
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/// masquerade batch job constituents as (quasi)processes, when writing
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/// parseable output to consumers that don't understand the idea of a batch
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/// job. They are negative in order to avoid possibly colliding with real
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/// PIDs (which are always positive). We start at -1000 here as a crude but
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/// harmless hedge against colliding with an errno value that might slip
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/// into the stream of real PIDs (say, due to a TaskQueue bug).
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const int QUASI_PID_START = -1000;
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struct CommandInput {
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std::string Path;
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CommandInput() {}
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CommandInput(StringRef Path) : Path(Path) {}
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};
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using OutputPair = std::pair<file_types::ID, std::string>;
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/// A client-agnostic (e.g. either the compiler driver or `swift-frontend`)
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/// description of a task that is the subject of a parseable-output message.
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struct DetailedTaskDescription {
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std::string Executable;
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SmallVector<std::string, 16> Arguments;
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std::string CommandLine;
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SmallVector<CommandInput, 4> Inputs;
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SmallVector<OutputPair, 8> Outputs;
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};
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/// Emits a "began" message to the given stream.
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void emitBeganMessage(raw_ostream &os, StringRef Name,
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DetailedTaskDescription TascDesc,
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int64_t Pid, sys::TaskProcessInformation ProcInfo);
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/// Emits a "finished" message to the given stream.
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void emitFinishedMessage(raw_ostream &os, StringRef Name,
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std::string Output, int ExitStatus,
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int64_t Pid, sys::TaskProcessInformation ProcInfo);
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/// Emits a "signalled" message to the given stream.
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void emitSignalledMessage(raw_ostream &os, StringRef Name, StringRef ErrorMsg,
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StringRef Output, llvm::Optional<int> Signal,
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int64_t Pid, sys::TaskProcessInformation ProcInfo);
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/// Emits a "skipped" message to the given stream.
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void emitSkippedMessage(raw_ostream &os, StringRef Name,
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DetailedTaskDescription TascDesc);
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} // end namespace parseable_output
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} // end namespace swift
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#endif
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