slang_rs_export_func.h revision e639eb5caa2c386b4a60659a4929e8a6141a2cbe
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_rs_export_type.h" 26#include "slang_rs_exportable.h" 27 28namespace llvm { 29 class StructType; 30} 31 32namespace clang { 33 class FunctionDecl; 34} // namespace clang 35 36namespace slang { 37 38class RSContext; 39 40class RSExportFunc : public RSExportable { 41 friend class RSContext; 42 43 private: 44 std::string mName; 45 RSExportRecordType *mParamPacketType; 46 47 RSExportFunc(RSContext *Context, const llvm::StringRef &Name) 48 : RSExportable(Context, RSExportable::EX_FUNC), 49 mName(Name.data(), Name.size()), 50 mParamPacketType(NULL) { 51 return; 52 } 53 54 public: 55 static RSExportFunc *Create(RSContext *Context, 56 const clang::FunctionDecl *FD); 57 58 typedef RSExportRecordType::const_field_iterator const_param_iterator; 59 60 inline const_param_iterator params_begin() const { 61 assert((mParamPacketType != NULL) && 62 "Get parameter from export function having no parameter!"); 63 return mParamPacketType->fields_begin(); 64 } 65 inline const_param_iterator params_end() const { 66 assert((mParamPacketType != NULL) && 67 "Get parameter from export function having no parameter!"); 68 return mParamPacketType->fields_end(); 69 } 70 71 inline const std::string &getName() const { return mName; } 72 73 inline bool hasParam() const 74 { return (mParamPacketType && !mParamPacketType->getFields().empty()); } 75 inline size_t getNumParameters() const 76 { return ((mParamPacketType) ? mParamPacketType->getFields().size() : 0); } 77 78 inline const RSExportRecordType *getParamPacketType() const 79 { return mParamPacketType; } 80 81 // Check whether the given ParamsPacket type (in LLVM type) is "size 82 // equivalent" to the one obtained from getParamPacketType(). If the @Params 83 // is NULL, means there must be no any parameters. 84 bool checkParameterPacketType(const llvm::StructType *ParamTy) const; 85}; // RSExportFunc 86 87 88} // namespace slang 89 90#endif // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_EXPORT_FUNC_H_ NOLINT 91