John McCall | 260611a | 2012-06-20 06:18:46 +0000 | [diff] [blame] | 1 | //===- ObjCRuntime.cpp - Objective-C Runtime Handling -----------*- C++ -*-===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file implements the ObjCRuntime class, which represents the |
| 11 | // target Objective-C runtime. |
| 12 | // |
| 13 | //===----------------------------------------------------------------------===// |
| 14 | #include "clang/Basic/ObjCRuntime.h" |
| 15 | #include "llvm/Support/raw_ostream.h" |
| 16 | |
| 17 | using namespace clang; |
| 18 | |
| 19 | std::string ObjCRuntime::getAsString() const { |
| 20 | std::string Result; |
| 21 | { |
| 22 | llvm::raw_string_ostream Out(Result); |
| 23 | Out << *this; |
| 24 | } |
| 25 | return Result; |
| 26 | } |
| 27 | |
| 28 | raw_ostream &clang::operator<<(raw_ostream &out, const ObjCRuntime &value) { |
| 29 | switch (value.getKind()) { |
| 30 | case ObjCRuntime::MacOSX: out << "macosx"; break; |
| 31 | case ObjCRuntime::FragileMacOSX: out << "macosx-fragile"; break; |
| 32 | case ObjCRuntime::iOS: out << "ios"; break; |
David Chisnall | 11d3f4c | 2012-07-03 20:49:52 +0000 | [diff] [blame] | 33 | case ObjCRuntime::GNUstep: out << "gnustep"; break; |
| 34 | case ObjCRuntime::GCC: out << "gcc"; break; |
John McCall | f7226fb | 2012-07-12 02:07:58 +0000 | [diff] [blame] | 35 | case ObjCRuntime::ObjFW: out << "objfw"; break; |
John McCall | 260611a | 2012-06-20 06:18:46 +0000 | [diff] [blame] | 36 | } |
| 37 | if (value.getVersion() > VersionTuple(0)) { |
| 38 | out << '-' << value.getVersion(); |
| 39 | } |
| 40 | return out; |
| 41 | } |
| 42 | |
| 43 | bool ObjCRuntime::tryParse(StringRef input) { |
| 44 | // Look for the last dash. |
| 45 | std::size_t dash = input.rfind('-'); |
| 46 | |
John McCall | 0b92fcb | 2012-06-20 21:58:02 +0000 | [diff] [blame] | 47 | // We permit dashes in the runtime name, and we also permit the |
| 48 | // version to be omitted, so if we see a dash not followed by a |
| 49 | // digit then we need to ignore it. |
John McCall | 260611a | 2012-06-20 06:18:46 +0000 | [diff] [blame] | 50 | if (dash != StringRef::npos && dash + 1 != input.size() && |
| 51 | (input[dash+1] < '0' || input[dash+1] > '9')) { |
| 52 | dash = StringRef::npos; |
| 53 | } |
| 54 | |
| 55 | // Everything prior to that must be a valid string name. |
| 56 | Kind kind; |
| 57 | StringRef runtimeName = input.substr(0, dash); |
David Chisnall | a422cd0 | 2012-07-04 10:37:03 +0000 | [diff] [blame] | 58 | Version = VersionTuple(0); |
John McCall | 260611a | 2012-06-20 06:18:46 +0000 | [diff] [blame] | 59 | if (runtimeName == "macosx") { |
| 60 | kind = ObjCRuntime::MacOSX; |
| 61 | } else if (runtimeName == "macosx-fragile") { |
| 62 | kind = ObjCRuntime::FragileMacOSX; |
| 63 | } else if (runtimeName == "ios") { |
| 64 | kind = ObjCRuntime::iOS; |
David Chisnall | 11d3f4c | 2012-07-03 20:49:52 +0000 | [diff] [blame] | 65 | } else if (runtimeName == "gnustep") { |
David Chisnall | a422cd0 | 2012-07-04 10:37:03 +0000 | [diff] [blame] | 66 | // If no version is specified then default to the most recent one that we |
| 67 | // know about. |
| 68 | Version = VersionTuple(1, 6); |
David Chisnall | 11d3f4c | 2012-07-03 20:49:52 +0000 | [diff] [blame] | 69 | kind = ObjCRuntime::GNUstep; |
| 70 | } else if (runtimeName == "gcc") { |
| 71 | kind = ObjCRuntime::GCC; |
John McCall | f7226fb | 2012-07-12 02:07:58 +0000 | [diff] [blame] | 72 | } else if (runtimeName == "objfw") { |
| 73 | kind = ObjCRuntime::ObjFW; |
John McCall | 260611a | 2012-06-20 06:18:46 +0000 | [diff] [blame] | 74 | } else { |
| 75 | return true; |
| 76 | } |
| 77 | TheKind = kind; |
| 78 | |
John McCall | 260611a | 2012-06-20 06:18:46 +0000 | [diff] [blame] | 79 | if (dash != StringRef::npos) { |
| 80 | StringRef verString = input.substr(dash + 1); |
| 81 | if (Version.tryParse(verString)) |
| 82 | return true; |
| 83 | } |
| 84 | |
| 85 | return false; |
| 86 | } |