| //===- ObjCRuntime.cpp - Objective-C Runtime Handling -----------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements the ObjCRuntime class, which represents the |
| // target Objective-C runtime. |
| // |
| //===----------------------------------------------------------------------===// |
| #include "clang/Basic/ObjCRuntime.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| using namespace clang; |
| |
| std::string ObjCRuntime::getAsString() const { |
| std::string Result; |
| { |
| llvm::raw_string_ostream Out(Result); |
| Out << *this; |
| } |
| return Result; |
| } |
| |
| raw_ostream &clang::operator<<(raw_ostream &out, const ObjCRuntime &value) { |
| switch (value.getKind()) { |
| case ObjCRuntime::MacOSX: out << "macosx"; break; |
| case ObjCRuntime::FragileMacOSX: out << "macosx-fragile"; break; |
| case ObjCRuntime::iOS: out << "ios"; break; |
| case ObjCRuntime::WatchOS: out << "watchos"; break; |
| case ObjCRuntime::GNUstep: out << "gnustep"; break; |
| case ObjCRuntime::GCC: out << "gcc"; break; |
| case ObjCRuntime::ObjFW: out << "objfw"; break; |
| } |
| if (value.getVersion() > VersionTuple(0)) { |
| out << '-' << value.getVersion(); |
| } |
| return out; |
| } |
| |
| bool ObjCRuntime::tryParse(StringRef input) { |
| // Look for the last dash. |
| std::size_t dash = input.rfind('-'); |
| |
| // We permit dashes in the runtime name, and we also permit the |
| // version to be omitted, so if we see a dash not followed by a |
| // digit then we need to ignore it. |
| if (dash != StringRef::npos && dash + 1 != input.size() && |
| (input[dash+1] < '0' || input[dash+1] > '9')) { |
| dash = StringRef::npos; |
| } |
| |
| // Everything prior to that must be a valid string name. |
| Kind kind; |
| StringRef runtimeName = input.substr(0, dash); |
| Version = VersionTuple(0); |
| if (runtimeName == "macosx") { |
| kind = ObjCRuntime::MacOSX; |
| } else if (runtimeName == "macosx-fragile") { |
| kind = ObjCRuntime::FragileMacOSX; |
| } else if (runtimeName == "ios") { |
| kind = ObjCRuntime::iOS; |
| } else if (runtimeName == "watchos") { |
| kind = ObjCRuntime::WatchOS; |
| } else if (runtimeName == "gnustep") { |
| // If no version is specified then default to the most recent one that we |
| // know about. |
| Version = VersionTuple(1, 6); |
| kind = ObjCRuntime::GNUstep; |
| } else if (runtimeName == "gcc") { |
| kind = ObjCRuntime::GCC; |
| } else if (runtimeName == "objfw") { |
| kind = ObjCRuntime::ObjFW; |
| Version = VersionTuple(0, 8); |
| } else { |
| return true; |
| } |
| TheKind = kind; |
| |
| if (dash != StringRef::npos) { |
| StringRef verString = input.substr(dash + 1); |
| if (Version.tryParse(verString)) |
| return true; |
| } |
| |
| if (kind == ObjCRuntime::ObjFW && Version > VersionTuple(0, 8)) |
| Version = VersionTuple(0, 8); |
| |
| return false; |
| } |