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Since LLDB is taking over as the REPL for Swift, we eventually want "swift" and "swift -repl" to invoke "lldb --repl" rather than the frontend. However, we only want to do this if the LLDB that's present is related to the Swift that's present -- we don't want to invoke some random LLDB on the system or in some other Xcode installation. Therefore, Swift searches for LLDB-- first next to the driver, then in the usr/bin/ outside of a toolchain-- before choosing to use it. If the user just passes -repl and an LLDB is not found relative to the driver, the existing "integrated" REPL will be launched instead.* If the user passes -lldb-repl and an LLDB is not found relative to the driver, one from the user's PATH will be chosen (like the linker). The user can also pass -integrated-repl to get the existing behavior. "swift -frontend -repl" always uses the integrated REPL. * Since LLDB's not quite ready to be the REPL yet, "swift -repl" still invokes the integrated REPL. "swift -repl -experimental-prefer-lldb" tests the new behavior; this option will become the default (and the flag removed) in <rdar://problem/16776719>. <rdar://problem/16776705> Swift SVN r17134
120 lines
3.8 KiB
C++
120 lines
3.8 KiB
C++
//===--- Tools.h - Tool Implementations -------------------------*- 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 - 2015 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 http://swift.org/LICENSE.txt for license information
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// See http://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_TOOLS_H
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#define SWIFT_DRIVER_TOOLS_H
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#include "swift/Basic/LLVM.h"
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#include "swift/Driver/Tool.h"
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#include "llvm/ADT/Triple.h"
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#include "llvm/Option/Option.h"
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#include "llvm/Support/Compiler.h"
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namespace swift {
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namespace driver {
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namespace toolchains {
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class Darwin;
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}
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namespace tools {
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class LLVM_LIBRARY_VISIBILITY Swift : public Tool {
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public:
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explicit Swift(const ToolChain &TC) : Tool("swift", "swift frontend", TC) {}
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virtual bool hasGoodDiagnostics() const { return true; }
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virtual Job *constructJob(const JobAction &JA,
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std::unique_ptr<JobList> Inputs,
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std::unique_ptr<CommandOutput> Output,
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const ActionList &InputActions,
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const llvm::opt::ArgList &Args,
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const OutputInfo &OI) const;
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};
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class LLVM_LIBRARY_VISIBILITY MergeModule : public Tool {
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public:
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explicit MergeModule(const ToolChain &TC)
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: Tool("merge-module", "merge-module", TC) {}
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virtual bool hasGoodDiagnostics() const { return true; }
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virtual Job *constructJob(const JobAction &JA,
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std::unique_ptr<JobList> Inputs,
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std::unique_ptr<CommandOutput> Output,
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const ActionList &InputActions,
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const llvm::opt::ArgList &Args,
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const OutputInfo &OI) const;
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};
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class LLVM_LIBRARY_VISIBILITY LLDB : public Tool {
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mutable std::string Path;
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struct {
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mutable unsigned DidCheckRelativeToDriver : 1;
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} Bits;
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public:
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explicit LLDB(const ToolChain &TC) : Tool("LLDB", "LLDB REPL", TC), Bits() {}
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bool isPresentRelativeToDriver() const;
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virtual Job *constructJob(const JobAction &JA,
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std::unique_ptr<JobList> Inputs,
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std::unique_ptr<CommandOutput> Output,
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const ActionList &InputActions,
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const llvm::opt::ArgList &Args,
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const OutputInfo &OI) const;
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};
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namespace darwin {
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llvm::Triple::ArchType getArchTypeForDarwinArchName(StringRef DarwinArchName);
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class LLVM_LIBRARY_VISIBILITY DarwinTool : public Tool {
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virtual void anchor();
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protected:
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/// Add the appropriate -arch argument based on \p Args.
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void AddDarwinArch(const llvm::opt::ArgList &Args,
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llvm::opt::ArgStringList &CmdArgs) const;
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const toolchains::Darwin &getDarwinToolChain() const {
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return reinterpret_cast<const toolchains::Darwin &>(getToolChain());
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}
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public:
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DarwinTool(const char *Name, const char *ShortName, const ToolChain &TC)
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: Tool(Name, ShortName, TC) {}
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};
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class LLVM_LIBRARY_VISIBILITY Linker : public DarwinTool {
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public:
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explicit Linker(const ToolChain &TC)
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: DarwinTool("darwin::Linker", "linker", TC) {}
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virtual Job *constructJob(const JobAction &JA,
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std::unique_ptr<JobList> Inputs,
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std::unique_ptr<CommandOutput> Output,
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const ActionList &InputActions,
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const llvm::opt::ArgList &Args,
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const OutputInfo &OI) const;
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};
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} // end namespace darwin
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} // end namespace tools
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} // end namespace driver
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} // end namespace swift
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#endif
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