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115 lines
4.0 KiB
C++
115 lines
4.0 KiB
C++
//===--- LangOptions.h - Language & configuration options -------*- 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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//
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// This file defines the LangOptions class, which provides various
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// language and configuration flags.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_LANGOPTIONS_H
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#define SWIFT_LANGOPTIONS_H
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#include "swift/Basic/LLVM.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include <string>
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namespace swift {
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/// \brief A collection of options that affect the language dialect and
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/// provide compiler debugging facilities.
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class LangOptions {
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public:
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/// \brief Whether we are debugging the constraint solver.
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///
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/// This option enables verbose debugging output from the constraint
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/// solver.
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bool DebugConstraintSolver = false;
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/// \brief Specific solution attempt for which the constraint
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/// solver should be debugged.
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unsigned DebugConstraintSolverAttempt = 0;
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/// \brief Perform all dynamic allocations using malloc/free instead of
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/// optimized custom allocator, so that memory debugging tools can be used.
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bool UseMalloc = false;
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/// \brief Enable experimental "switch" pattern-matching features.
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bool EnableExperimentalPatterns = false;
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/// \brief Enable features useful for running in the debugger.
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bool DebuggerSupport = false;
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/// \brief Keep comments during lexing and attach them to declarations.
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bool AttachCommentsToDecls = false;
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/// Enable 'availability' restrictions for App Extensions.
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bool EnableAppExtensionRestrictions = false;
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/// Whether to split imported Objective-C selectors into Swift method names.
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bool SplitPrepositions = false;
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/// Whether to make the "with" at the beginning of the first argument of
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/// an initializer implicit (i.e., dropped on import, added when computing
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/// a selector).
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bool ImplicitObjCWith = false;
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/// Enables checking that uses of @objc require importing
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/// the ObjectiveC module.
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bool EnableObjCAttrRequiresObjCModule = false;
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/// Enables special importing of CF types.
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bool ImportCFTypes = false;
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/// Be strict about the use of keyword arguments.
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/// FIXME: This is the default, and the option will eventually be
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/// removed.
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bool StrictKeywordArguments = true;
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/// Implicit target configuration options. There are currently two
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/// supported target configuration values:
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/// os - The active os target (OSX or IOS)
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/// arch - The active arch target (X64, I386, ARM, ARM64)
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void addTargetConfigOption(StringRef Name, StringRef Value) {
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assert(!Name.empty() && !Value.empty());
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TargetConfigOptions.push_back(std::make_pair(Name, Value));
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}
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/// Returns the value for the given target configuration or an empty string.
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StringRef getTargetConfigOption(StringRef Name);
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/// Explicit build configuration options, initialized via the '-D'
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/// compiler flag.
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void addBuildConfigOption(StringRef Name) {
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assert(!Name.empty());
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BuildConfigOptions.push_back(Name);
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}
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/// Determines if a given build configuration has been defined.
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bool hasBuildConfigOption(StringRef Name);
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ArrayRef<std::pair<std::string, std::string>>
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getTargetConfigOptions() const {
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return TargetConfigOptions;
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}
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private:
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llvm::SmallVector<std::pair<std::string, std::string>, 2>
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TargetConfigOptions;
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llvm::SmallVector<std::string, 2> BuildConfigOptions;
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};
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}
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#endif // LLVM_SWIFT_LANGOPTIONS_H
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