1 //===- ScriptReader.cpp ---------------------------------------------------===// 2 // 3 // The MCLinker Project 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 #include <mcld/Script/ScriptReader.h> 10 #include <mcld/Script/ScriptScanner.h> 11 #include <mcld/Script/ScriptFile.h> 12 #include <mcld/MC/Input.h> 13 #include <mcld/Support/MemoryArea.h> 14 15 #include <llvm/ADT/StringRef.h> 16 17 #include <istream> 18 #include <sstream> 19 20 using namespace mcld; 21 22 ScriptReader::ScriptReader(GroupReader& pGroupReader) 23 : m_GroupReader(pGroupReader) 24 { 25 } 26 27 ScriptReader::~ScriptReader() 28 { 29 } 30 31 /// isMyFormat 32 bool ScriptReader::isMyFormat(Input& input, bool &doContinue) const 33 { 34 doContinue = true; 35 // always return true now 36 return true; 37 } 38 39 bool ScriptReader::readScript(const LinkerConfig& pConfig, 40 ScriptFile& pScriptFile) 41 { 42 bool result = false; 43 Input& input = pScriptFile.input(); 44 size_t size = input.memArea()->size(); 45 llvm::StringRef region = input.memArea()->request(input.fileOffset(), size); 46 std::stringbuf buf(region.data()); 47 48 std::istream in(&buf); 49 ScriptScanner scanner(&in); 50 ScriptParser parser(pConfig, 51 pScriptFile, 52 scanner, 53 m_GroupReader); 54 result = (0 == parser.parse());; 55 56 return result; 57 } 58 59
