Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame^] | 1 | //===------- CGObjCMac.cpp - Interface to Apple Objective-C Runtime -------===// |
| 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 provides Objective-C code generation targetting the Apple runtime. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "CGObjCRuntime.h" |
| 15 | #include "CodeGenModule.h" |
| 16 | #include "clang/AST/ASTContext.h" |
| 17 | #include "llvm/Module.h" |
| 18 | #include "llvm/Support/Compiler.h" |
| 19 | #include "llvm/Support/IRBuilder.h" |
| 20 | #include "llvm/ADT/SmallVector.h" |
| 21 | #include "llvm/ADT/StringMap.h" |
| 22 | #include <map> |
| 23 | |
| 24 | using namespace clang; |
| 25 | |
| 26 | namespace { |
| 27 | class CGObjCMac : public CodeGen::CGObjCRuntime { |
| 28 | private: |
| 29 | CodeGen::CodeGenModule &CGM; |
| 30 | |
| 31 | public: |
| 32 | CGObjCMac(CodeGen::CodeGenModule &cgm); |
| 33 | virtual llvm::Constant *GenerateConstantString(const char *String, |
| 34 | const size_t length); |
| 35 | |
| 36 | virtual llvm::Value *GenerateMessageSend(llvm::IRBuilder<> &Builder, |
| 37 | const llvm::Type *ReturnTy, |
| 38 | llvm::Value *Sender, |
| 39 | llvm::Value *Receiver, |
| 40 | Selector Sel, |
| 41 | llvm::Value** ArgV, |
| 42 | unsigned ArgC); |
| 43 | |
| 44 | virtual llvm::Value *GenerateMessageSendSuper(llvm::IRBuilder<> &Builder, |
| 45 | const llvm::Type *ReturnTy, |
| 46 | llvm::Value *Sender, |
| 47 | const char *SuperClassName, |
| 48 | llvm::Value *Receiver, |
| 49 | Selector Sel, |
| 50 | llvm::Value** ArgV, |
| 51 | unsigned ArgC); |
| 52 | |
| 53 | virtual llvm::Value *LookupClass(llvm::IRBuilder<> &Builder, |
| 54 | llvm::Value *ClassName); |
| 55 | |
| 56 | virtual llvm::Value *GetSelector(llvm::IRBuilder<> &Builder, Selector Sel); |
| 57 | |
| 58 | virtual llvm::Function *MethodPreamble(const std::string &ClassName, |
| 59 | const std::string &CategoryName, |
| 60 | const std::string &MethodName, |
| 61 | const llvm::Type *ReturnTy, |
| 62 | const llvm::Type *SelfTy, |
| 63 | const llvm::Type **ArgTy, |
| 64 | unsigned ArgC, |
| 65 | bool isClassMethod, |
| 66 | bool isVarArg); |
| 67 | |
| 68 | virtual void GenerateCategory(const char *ClassName, const char *CategoryName, |
| 69 | const llvm::SmallVectorImpl<Selector> &InstanceMethodSels, |
| 70 | const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodTypes, |
| 71 | const llvm::SmallVectorImpl<Selector> &ClassMethodSels, |
| 72 | const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodTypes, |
| 73 | const llvm::SmallVectorImpl<std::string> &Protocols); |
| 74 | |
| 75 | virtual void GenerateClass( |
| 76 | const char *ClassName, |
| 77 | const char *SuperClassName, |
| 78 | const int instanceSize, |
| 79 | const llvm::SmallVectorImpl<llvm::Constant *> &IvarNames, |
| 80 | const llvm::SmallVectorImpl<llvm::Constant *> &IvarTypes, |
| 81 | const llvm::SmallVectorImpl<llvm::Constant *> &IvarOffsets, |
| 82 | const llvm::SmallVectorImpl<Selector> &InstanceMethodSels, |
| 83 | const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodTypes, |
| 84 | const llvm::SmallVectorImpl<Selector> &ClassMethodSels, |
| 85 | const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodTypes, |
| 86 | const llvm::SmallVectorImpl<std::string> &Protocols); |
| 87 | |
| 88 | virtual llvm::Value *GenerateProtocolRef(llvm::IRBuilder<> &Builder, |
| 89 | const char *ProtocolName); |
| 90 | |
| 91 | virtual void GenerateProtocol(const char *ProtocolName, |
| 92 | const llvm::SmallVectorImpl<std::string> &Protocols, |
| 93 | const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodNames, |
| 94 | const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodTypes, |
| 95 | const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodNames, |
| 96 | const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodTypes); |
| 97 | |
| 98 | virtual llvm::Function *ModuleInitFunction(); |
| 99 | }; |
| 100 | } // end anonymous namespace |
| 101 | |
| 102 | CGObjCMac::CGObjCMac(CodeGen::CodeGenModule &cgm) : CGM(cgm) { |
| 103 | } |
| 104 | |
| 105 | // This has to perform the lookup every time, since posing and related |
| 106 | // techniques can modify the name -> class mapping. |
| 107 | llvm::Value *CGObjCMac::LookupClass(llvm::IRBuilder<> &Builder, |
| 108 | llvm::Value *ClassName) { |
| 109 | assert(0 && "Cannot lookup classes on Mac runtime."); |
| 110 | return 0; |
| 111 | } |
| 112 | |
| 113 | /// GetSelector - Return the pointer to the unique'd string for this selector. |
| 114 | llvm::Value *CGObjCMac::GetSelector(llvm::IRBuilder<> &Builder, Selector Sel) { |
| 115 | assert(0 && "Cannot get selector on Mac runtime."); |
| 116 | return 0; |
| 117 | } |
| 118 | |
| 119 | /// Generate an NSConstantString object. |
| 120 | llvm::Constant *CGObjCMac::GenerateConstantString(const char *String, |
| 121 | const size_t length) { |
| 122 | assert(0 && "Cannot generate constant string for Mac runtime."); |
| 123 | return 0; |
| 124 | } |
| 125 | |
| 126 | /// Generates a message send where the super is the receiver. This is |
| 127 | /// a message send to self with special delivery semantics indicating |
| 128 | /// which class's method should be called. |
| 129 | llvm::Value *CGObjCMac::GenerateMessageSendSuper(llvm::IRBuilder<> &Builder, |
| 130 | const llvm::Type *ReturnTy, |
| 131 | llvm::Value *Sender, |
| 132 | const char *SuperClassName, |
| 133 | llvm::Value *Receiver, |
| 134 | Selector Sel, |
| 135 | llvm::Value** ArgV, |
| 136 | unsigned ArgC) { |
| 137 | assert(0 && "Cannot generate message send to super for Mac runtime."); |
| 138 | return 0; |
| 139 | } |
| 140 | |
| 141 | /// Generate code for a message send expression. |
| 142 | llvm::Value *CGObjCMac::GenerateMessageSend(llvm::IRBuilder<> &Builder, |
| 143 | const llvm::Type *ReturnTy, |
| 144 | llvm::Value *Sender, |
| 145 | llvm::Value *Receiver, |
| 146 | Selector Sel, |
| 147 | llvm::Value** ArgV, |
| 148 | unsigned ArgC) { |
| 149 | assert(0 && "Cannot generate message send for Mac runtime."); |
| 150 | return 0; |
| 151 | } |
| 152 | |
| 153 | llvm::Value *CGObjCMac::GenerateProtocolRef(llvm::IRBuilder<> &Builder, |
| 154 | const char *ProtocolName) { |
| 155 | assert(0 && "Cannot get protocol reference on Mac runtime."); |
| 156 | return 0; |
| 157 | } |
| 158 | |
| 159 | void CGObjCMac::GenerateProtocol(const char *ProtocolName, |
| 160 | const llvm::SmallVectorImpl<std::string> &Protocols, |
| 161 | const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodNames, |
| 162 | const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodTypes, |
| 163 | const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodNames, |
| 164 | const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodTypes) { |
| 165 | assert(0 && "Cannot generate protocol for Mac runtime."); |
| 166 | } |
| 167 | |
| 168 | void CGObjCMac::GenerateCategory( |
| 169 | const char *ClassName, |
| 170 | const char *CategoryName, |
| 171 | const llvm::SmallVectorImpl<Selector> &InstanceMethodSels, |
| 172 | const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodTypes, |
| 173 | const llvm::SmallVectorImpl<Selector> &ClassMethodSels, |
| 174 | const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodTypes, |
| 175 | const llvm::SmallVectorImpl<std::string> &Protocols) { |
| 176 | assert(0 && "Cannot generate category for Mac runtime."); |
| 177 | } |
| 178 | |
| 179 | void CGObjCMac::GenerateClass( |
| 180 | const char *ClassName, |
| 181 | const char *SuperClassName, |
| 182 | const int instanceSize, |
| 183 | const llvm::SmallVectorImpl<llvm::Constant *> &IvarNames, |
| 184 | const llvm::SmallVectorImpl<llvm::Constant *> &IvarTypes, |
| 185 | const llvm::SmallVectorImpl<llvm::Constant *> &IvarOffsets, |
| 186 | const llvm::SmallVectorImpl<Selector> &InstanceMethodSels, |
| 187 | const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodTypes, |
| 188 | const llvm::SmallVectorImpl<Selector> &ClassMethodSels, |
| 189 | const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodTypes, |
| 190 | const llvm::SmallVectorImpl<std::string> &Protocols) { |
| 191 | assert(0 && "Cannot generate class for Mac runtime."); |
| 192 | } |
| 193 | |
| 194 | llvm::Function *CGObjCMac::ModuleInitFunction() { |
| 195 | return NULL; |
| 196 | } |
| 197 | |
| 198 | llvm::Function *CGObjCMac::MethodPreamble( |
| 199 | const std::string &ClassName, |
| 200 | const std::string &CategoryName, |
| 201 | const std::string &MethodName, |
| 202 | const llvm::Type *ReturnTy, |
| 203 | const llvm::Type *SelfTy, |
| 204 | const llvm::Type **ArgTy, |
| 205 | unsigned ArgC, |
| 206 | bool isClassMethod, |
| 207 | bool isVarArg) { |
| 208 | assert(0 && "Cannot generate method preamble for Mac runtime."); |
| 209 | return 0; |
| 210 | } |
| 211 | |
| 212 | CodeGen::CGObjCRuntime *CodeGen::CreateMacObjCRuntime(CodeGen::CodeGenModule &CGM){ |
| 213 | return new CGObjCMac(CGM); |
| 214 | } |