slang_rs_export_func.h revision f2174cfd6a556b51aadf2b8765e50df080e8f18e
1/* 2 * Copyright 2010, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_EXPORT_FUNC_H_ // NOLINT 18#define _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_EXPORT_FUNC_H_ 19 20#include <list> 21#include <string> 22 23#include "llvm/ADT/StringRef.h" 24 25#include "slang_assert.h" 26#include "slang_rs_export_type.h" 27#include "slang_rs_exportable.h" 28 29namespace llvm { 30 class StructType; 31} 32 33namespace clang { 34 class FunctionDecl; 35} // namespace clang 36 37namespace slang { 38 39class RSContext; 40 41class RSExportFunc : public RSExportable { 42 friend class RSContext; 43 44 private: 45 std::string mName; 46 std::string mMangledName; 47 bool mShouldMangle; 48 RSExportRecordType *mParamPacketType; 49 50 RSExportFunc(RSContext *Context, const llvm::StringRef &Name, 51 const clang::FunctionDecl *FD) 52 : RSExportable(Context, RSExportable::EX_FUNC), 53 mName(Name.data(), Name.size()), 54 mMangledName(), 55 mShouldMangle(false), 56 mParamPacketType(NULL) { 57 58 mShouldMangle = Context->getMangleContext().shouldMangleDeclName(FD); 59 60 if (mShouldMangle) { 61 llvm::SmallString<256> Buffer; 62 Context->getMangleContext().mangleName(FD, Buffer); 63 64 mMangledName = Buffer.str(); 65 } 66 67 return; 68 } 69 70 public: 71 static RSExportFunc *Create(RSContext *Context, 72 const clang::FunctionDecl *FD); 73 74 typedef RSExportRecordType::const_field_iterator const_param_iterator; 75 76 inline const_param_iterator params_begin() const { 77 slangAssert((mParamPacketType != NULL) && 78 "Get parameter from export function having no parameter!"); 79 return mParamPacketType->fields_begin(); 80 } 81 inline const_param_iterator params_end() const { 82 slangAssert((mParamPacketType != NULL) && 83 "Get parameter from export function having no parameter!"); 84 return mParamPacketType->fields_end(); 85 } 86 87 inline const std::string &getName(bool mangle = true) const { 88 return (mShouldMangle && mangle) ? mMangledName : mName; 89 } 90 91 inline bool hasParam() const 92 { return (mParamPacketType && !mParamPacketType->getFields().empty()); } 93 inline size_t getNumParameters() const 94 { return ((mParamPacketType) ? mParamPacketType->getFields().size() : 0); } 95 96 inline const RSExportRecordType *getParamPacketType() const 97 { return mParamPacketType; } 98 99 // Check whether the given ParamsPacket type (in LLVM type) is "size 100 // equivalent" to the one obtained from getParamPacketType(). If the @Params 101 // is NULL, means there must be no any parameters. 102 bool checkParameterPacketType(const llvm::StructType *ParamTy) const; 103}; // RSExportFunc 104 105 106} // namespace slang 107 108#endif // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_EXPORT_FUNC_H_ NOLINT 109