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e4e4f3e4f5
But not even that much uglier; at all three call sites this will save an allocation, and for the most important one (SourceKit) we can now avoid creating a temporary CompilerInvocation just to copy into a longer-lived one. With this change, Driver no longer depends on Frontend, which means... well, slightly faster builds of the compiler itself, but not much else.
49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
//===--- FrontendUtil.h - Driver Utilities for Frontend ---------*- 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 - 2017 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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#ifndef SWIFT_DRIVER_FRONTENDUTIL_H
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#define SWIFT_DRIVER_FRONTENDUTIL_H
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#include "swift/Basic/LLVM.h"
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#include "llvm/ADT/STLExtras.h"
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#include <memory>
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namespace swift {
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class DiagnosticEngine;
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namespace driver {
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/// Generates the list of arguments that would be passed to the compiler
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/// frontend from the given driver arguments.
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///
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/// \param ArgList The driver arguments (i.e. normal arguments for \c swiftc).
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/// \param Diags The DiagnosticEngine used to report any errors parsing the
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/// arguments.
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/// \param Action Called with the list of frontend arguments if there were no
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/// errors in processing \p ArgList. This is a callback rather than a return
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/// value to avoid copying the arguments more than necessary.
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///
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/// \returns True on error, or if \p Action returns true.
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///
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/// \note This function is not intended to create invocations which are
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/// suitable for use in REPL or immediate modes.
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bool getSingleFrontendInvocationFromDriverArguments(
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ArrayRef<const char *> ArgList, DiagnosticEngine &Diags,
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llvm::function_ref<bool(ArrayRef<const char *> FrontendArgs)> Action);
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} // end namespace driver
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} // end namespace swift
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#endif
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