ASTCommon.cpp revision 212795
1116742Ssam//===--- ASTCommon.cpp - Common stuff for ASTReader/ASTWriter----*- C++ -*-===// 2116904Ssam// 3116742Ssam// The LLVM Compiler Infrastructure 4116742Ssam// 5116742Ssam// This file is distributed under the University of Illinois Open Source 6116742Ssam// License. See LICENSE.TXT for details. 7116742Ssam// 8116742Ssam//===----------------------------------------------------------------------===// 9116742Ssam// 10116742Ssam// This file defines common functions that both ASTReader and ASTWriter use. 11116742Ssam// 12116742Ssam//===----------------------------------------------------------------------===// 13116742Ssam 14116904Ssam#include "ASTCommon.h" 15116904Ssam#include "clang/Basic/IdentifierTable.h" 16116742Ssam#include "llvm/ADT/StringExtras.h" 17116904Ssam 18116904Ssamusing namespace clang; 19116904Ssam 20116742Ssamserialization::TypeIdx 21116904Ssamserialization::TypeIdxFromBuiltin(const BuiltinType *BT) { 22116904Ssam unsigned ID = 0; 23116904Ssam switch (BT->getKind()) { 24116904Ssam case BuiltinType::Void: ID = PREDEF_TYPE_VOID_ID; break; 25116904Ssam case BuiltinType::Bool: ID = PREDEF_TYPE_BOOL_ID; break; 26116904Ssam case BuiltinType::Char_U: ID = PREDEF_TYPE_CHAR_U_ID; break; 27116904Ssam case BuiltinType::UChar: ID = PREDEF_TYPE_UCHAR_ID; break; 28116904Ssam case BuiltinType::UShort: ID = PREDEF_TYPE_USHORT_ID; break; 29116904Ssam case BuiltinType::UInt: ID = PREDEF_TYPE_UINT_ID; break; 30116904Ssam case BuiltinType::ULong: ID = PREDEF_TYPE_ULONG_ID; break; 31116904Ssam case BuiltinType::ULongLong: ID = PREDEF_TYPE_ULONGLONG_ID; break; 32116742Ssam case BuiltinType::UInt128: ID = PREDEF_TYPE_UINT128_ID; break; 33116742Ssam case BuiltinType::Char_S: ID = PREDEF_TYPE_CHAR_S_ID; break; 34116742Ssam case BuiltinType::SChar: ID = PREDEF_TYPE_SCHAR_ID; break; 35116742Ssam case BuiltinType::WChar: ID = PREDEF_TYPE_WCHAR_ID; break; 36116742Ssam case BuiltinType::Short: ID = PREDEF_TYPE_SHORT_ID; break; 37116742Ssam case BuiltinType::Int: ID = PREDEF_TYPE_INT_ID; break; 38116742Ssam case BuiltinType::Long: ID = PREDEF_TYPE_LONG_ID; break; 39116742Ssam case BuiltinType::LongLong: ID = PREDEF_TYPE_LONGLONG_ID; break; 40116742Ssam case BuiltinType::Int128: ID = PREDEF_TYPE_INT128_ID; break; 41116742Ssam case BuiltinType::Float: ID = PREDEF_TYPE_FLOAT_ID; break; 42116742Ssam case BuiltinType::Double: ID = PREDEF_TYPE_DOUBLE_ID; break; 43116742Ssam case BuiltinType::LongDouble: ID = PREDEF_TYPE_LONGDOUBLE_ID; break; 44116742Ssam case BuiltinType::NullPtr: ID = PREDEF_TYPE_NULLPTR_ID; break; 45116742Ssam case BuiltinType::Char16: ID = PREDEF_TYPE_CHAR16_ID; break; 46116742Ssam case BuiltinType::Char32: ID = PREDEF_TYPE_CHAR32_ID; break; 47116742Ssam case BuiltinType::Overload: ID = PREDEF_TYPE_OVERLOAD_ID; break; 48116742Ssam case BuiltinType::Dependent: ID = PREDEF_TYPE_DEPENDENT_ID; break; 49116742Ssam case BuiltinType::ObjCId: ID = PREDEF_TYPE_OBJC_ID; break; 50116742Ssam case BuiltinType::ObjCClass: ID = PREDEF_TYPE_OBJC_CLASS; break; 51116742Ssam case BuiltinType::ObjCSel: ID = PREDEF_TYPE_OBJC_SEL; break; 52116742Ssam case BuiltinType::UndeducedAuto: 53116742Ssam assert(0 && "Should not see undeduced auto here"); 54116742Ssam break; 55116742Ssam } 56116742Ssam 57116742Ssam return TypeIdx(ID); 58116742Ssam} 59116742Ssam 60116742Ssamunsigned serialization::ComputeHash(Selector Sel) { 61116742Ssam unsigned N = Sel.getNumArgs(); 62116742Ssam if (N == 0) 63116742Ssam ++N; 64116742Ssam unsigned R = 5381; 65116742Ssam for (unsigned I = 0; I != N; ++I) 66116742Ssam if (IdentifierInfo *II = Sel.getIdentifierInfoForSlot(I)) 67116742Ssam R = llvm::HashString(II->getName(), R); 68116742Ssam return R; 69116742Ssam} 70116742Ssam