1260611a32535c851237926bfcf78869b13c07d5bJohn McCall//===- ObjCRuntime.cpp - Objective-C Runtime Handling -----------*- C++ -*-===// 2260611a32535c851237926bfcf78869b13c07d5bJohn McCall// 3260611a32535c851237926bfcf78869b13c07d5bJohn McCall// The LLVM Compiler Infrastructure 4260611a32535c851237926bfcf78869b13c07d5bJohn McCall// 5260611a32535c851237926bfcf78869b13c07d5bJohn McCall// This file is distributed under the University of Illinois Open Source 6260611a32535c851237926bfcf78869b13c07d5bJohn McCall// License. See LICENSE.TXT for details. 7260611a32535c851237926bfcf78869b13c07d5bJohn McCall// 8260611a32535c851237926bfcf78869b13c07d5bJohn McCall//===----------------------------------------------------------------------===// 9260611a32535c851237926bfcf78869b13c07d5bJohn McCall// 10260611a32535c851237926bfcf78869b13c07d5bJohn McCall// This file implements the ObjCRuntime class, which represents the 11260611a32535c851237926bfcf78869b13c07d5bJohn McCall// target Objective-C runtime. 12260611a32535c851237926bfcf78869b13c07d5bJohn McCall// 13260611a32535c851237926bfcf78869b13c07d5bJohn McCall//===----------------------------------------------------------------------===// 14260611a32535c851237926bfcf78869b13c07d5bJohn McCall#include "clang/Basic/ObjCRuntime.h" 15260611a32535c851237926bfcf78869b13c07d5bJohn McCall#include "llvm/Support/raw_ostream.h" 16260611a32535c851237926bfcf78869b13c07d5bJohn McCall 17260611a32535c851237926bfcf78869b13c07d5bJohn McCallusing namespace clang; 18260611a32535c851237926bfcf78869b13c07d5bJohn McCall 19260611a32535c851237926bfcf78869b13c07d5bJohn McCallstd::string ObjCRuntime::getAsString() const { 20260611a32535c851237926bfcf78869b13c07d5bJohn McCall std::string Result; 21260611a32535c851237926bfcf78869b13c07d5bJohn McCall { 22260611a32535c851237926bfcf78869b13c07d5bJohn McCall llvm::raw_string_ostream Out(Result); 23260611a32535c851237926bfcf78869b13c07d5bJohn McCall Out << *this; 24260611a32535c851237926bfcf78869b13c07d5bJohn McCall } 25260611a32535c851237926bfcf78869b13c07d5bJohn McCall return Result; 26260611a32535c851237926bfcf78869b13c07d5bJohn McCall} 27260611a32535c851237926bfcf78869b13c07d5bJohn McCall 28260611a32535c851237926bfcf78869b13c07d5bJohn McCallraw_ostream &clang::operator<<(raw_ostream &out, const ObjCRuntime &value) { 29260611a32535c851237926bfcf78869b13c07d5bJohn McCall switch (value.getKind()) { 30260611a32535c851237926bfcf78869b13c07d5bJohn McCall case ObjCRuntime::MacOSX: out << "macosx"; break; 31260611a32535c851237926bfcf78869b13c07d5bJohn McCall case ObjCRuntime::FragileMacOSX: out << "macosx-fragile"; break; 32260611a32535c851237926bfcf78869b13c07d5bJohn McCall case ObjCRuntime::iOS: out << "ios"; break; 3311d3f4cc27e6b923fc32481dc1bb5ec46c7d1f4bDavid Chisnall case ObjCRuntime::GNUstep: out << "gnustep"; break; 3411d3f4cc27e6b923fc32481dc1bb5ec46c7d1f4bDavid Chisnall case ObjCRuntime::GCC: out << "gcc"; break; 35f7226fbe677a9c7578fa0613491ed15c6dc6a5e1John McCall case ObjCRuntime::ObjFW: out << "objfw"; break; 36260611a32535c851237926bfcf78869b13c07d5bJohn McCall } 37260611a32535c851237926bfcf78869b13c07d5bJohn McCall if (value.getVersion() > VersionTuple(0)) { 38260611a32535c851237926bfcf78869b13c07d5bJohn McCall out << '-' << value.getVersion(); 39260611a32535c851237926bfcf78869b13c07d5bJohn McCall } 40260611a32535c851237926bfcf78869b13c07d5bJohn McCall return out; 41260611a32535c851237926bfcf78869b13c07d5bJohn McCall} 42260611a32535c851237926bfcf78869b13c07d5bJohn McCall 43260611a32535c851237926bfcf78869b13c07d5bJohn McCallbool ObjCRuntime::tryParse(StringRef input) { 44260611a32535c851237926bfcf78869b13c07d5bJohn McCall // Look for the last dash. 45260611a32535c851237926bfcf78869b13c07d5bJohn McCall std::size_t dash = input.rfind('-'); 46260611a32535c851237926bfcf78869b13c07d5bJohn McCall 470b92fcb1353d2d8b31b6c485e6caa14568aca43bJohn McCall // We permit dashes in the runtime name, and we also permit the 480b92fcb1353d2d8b31b6c485e6caa14568aca43bJohn McCall // version to be omitted, so if we see a dash not followed by a 490b92fcb1353d2d8b31b6c485e6caa14568aca43bJohn McCall // digit then we need to ignore it. 50260611a32535c851237926bfcf78869b13c07d5bJohn McCall if (dash != StringRef::npos && dash + 1 != input.size() && 51260611a32535c851237926bfcf78869b13c07d5bJohn McCall (input[dash+1] < '0' || input[dash+1] > '9')) { 52260611a32535c851237926bfcf78869b13c07d5bJohn McCall dash = StringRef::npos; 53260611a32535c851237926bfcf78869b13c07d5bJohn McCall } 54260611a32535c851237926bfcf78869b13c07d5bJohn McCall 55260611a32535c851237926bfcf78869b13c07d5bJohn McCall // Everything prior to that must be a valid string name. 56260611a32535c851237926bfcf78869b13c07d5bJohn McCall Kind kind; 57260611a32535c851237926bfcf78869b13c07d5bJohn McCall StringRef runtimeName = input.substr(0, dash); 58a422cd0ed4da8cb5a172498f29bb02065707c6ceDavid Chisnall Version = VersionTuple(0); 59260611a32535c851237926bfcf78869b13c07d5bJohn McCall if (runtimeName == "macosx") { 60260611a32535c851237926bfcf78869b13c07d5bJohn McCall kind = ObjCRuntime::MacOSX; 61260611a32535c851237926bfcf78869b13c07d5bJohn McCall } else if (runtimeName == "macosx-fragile") { 62260611a32535c851237926bfcf78869b13c07d5bJohn McCall kind = ObjCRuntime::FragileMacOSX; 63260611a32535c851237926bfcf78869b13c07d5bJohn McCall } else if (runtimeName == "ios") { 64260611a32535c851237926bfcf78869b13c07d5bJohn McCall kind = ObjCRuntime::iOS; 6511d3f4cc27e6b923fc32481dc1bb5ec46c7d1f4bDavid Chisnall } else if (runtimeName == "gnustep") { 66a422cd0ed4da8cb5a172498f29bb02065707c6ceDavid Chisnall // If no version is specified then default to the most recent one that we 67a422cd0ed4da8cb5a172498f29bb02065707c6ceDavid Chisnall // know about. 68a422cd0ed4da8cb5a172498f29bb02065707c6ceDavid Chisnall Version = VersionTuple(1, 6); 6911d3f4cc27e6b923fc32481dc1bb5ec46c7d1f4bDavid Chisnall kind = ObjCRuntime::GNUstep; 7011d3f4cc27e6b923fc32481dc1bb5ec46c7d1f4bDavid Chisnall } else if (runtimeName == "gcc") { 7111d3f4cc27e6b923fc32481dc1bb5ec46c7d1f4bDavid Chisnall kind = ObjCRuntime::GCC; 72f7226fbe677a9c7578fa0613491ed15c6dc6a5e1John McCall } else if (runtimeName == "objfw") { 73f7226fbe677a9c7578fa0613491ed15c6dc6a5e1John McCall kind = ObjCRuntime::ObjFW; 74260611a32535c851237926bfcf78869b13c07d5bJohn McCall } else { 75260611a32535c851237926bfcf78869b13c07d5bJohn McCall return true; 76260611a32535c851237926bfcf78869b13c07d5bJohn McCall } 77260611a32535c851237926bfcf78869b13c07d5bJohn McCall TheKind = kind; 78260611a32535c851237926bfcf78869b13c07d5bJohn McCall 79260611a32535c851237926bfcf78869b13c07d5bJohn McCall if (dash != StringRef::npos) { 80260611a32535c851237926bfcf78869b13c07d5bJohn McCall StringRef verString = input.substr(dash + 1); 81260611a32535c851237926bfcf78869b13c07d5bJohn McCall if (Version.tryParse(verString)) 82260611a32535c851237926bfcf78869b13c07d5bJohn McCall return true; 83260611a32535c851237926bfcf78869b13c07d5bJohn McCall } 84260611a32535c851237926bfcf78869b13c07d5bJohn McCall 85260611a32535c851237926bfcf78869b13c07d5bJohn McCall return false; 86260611a32535c851237926bfcf78869b13c07d5bJohn McCall} 87