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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
50 lines
1.2 KiB
C++
50 lines
1.2 KiB
C++
//===--- Action.cpp - Abstract compilation steps --------------------------===//
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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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#include "swift/Driver/Action.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/Support/ErrorHandling.h"
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using namespace swift::driver;
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using namespace llvm::opt;
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Action::~Action() {
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if (OwnsInputs) {
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llvm::DeleteContainerPointers(Inputs);
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}
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}
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const char *Action::getClassName(ActionClass AC) {
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switch (AC) {
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case Input: return "input";
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case CompileJob: return "compile";
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case MergeModuleJob: return "merge-module";
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case REPLJob: return "repl";
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case LinkJob: return "link";
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}
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llvm_unreachable("invalid class");
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}
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void InputAction::anchor() {}
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void JobAction::anchor() {}
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void CompileJobAction::anchor() {}
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void MergeModuleJobAction::anchor() {}
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void REPLJobAction::anchor() {}
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void LinkJobAction::anchor() {}
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