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Argyrios Kyrtzidis0eca89e2010-08-20 16:03:52 +00001//===--- ASTCommon.cpp - Common stuff for ASTReader/ASTWriter----*- C++ -*-===//
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 file defines common functions that both ASTReader and ASTWriter use.
11//
12//===----------------------------------------------------------------------===//
13
14#include "ASTCommon.h"
Argyrios Kyrtzidis336d43a2010-10-14 20:14:28 +000015#include "clang/Serialization/ASTDeserializationListener.h"
Argyrios Kyrtzidis0eca89e2010-08-20 16:03:52 +000016#include "clang/Basic/IdentifierTable.h"
17#include "llvm/ADT/StringExtras.h"
18
19using namespace clang;
20
Argyrios Kyrtzidis336d43a2010-10-14 20:14:28 +000021// Give ASTDeserializationListener's VTable a home.
22ASTDeserializationListener::~ASTDeserializationListener() { }
23
Argyrios Kyrtzidiseb3f04e2010-08-20 16:04:20 +000024serialization::TypeIdx
25serialization::TypeIdxFromBuiltin(const BuiltinType *BT) {
26 unsigned ID = 0;
27 switch (BT->getKind()) {
28 case BuiltinType::Void: ID = PREDEF_TYPE_VOID_ID; break;
29 case BuiltinType::Bool: ID = PREDEF_TYPE_BOOL_ID; break;
30 case BuiltinType::Char_U: ID = PREDEF_TYPE_CHAR_U_ID; break;
31 case BuiltinType::UChar: ID = PREDEF_TYPE_UCHAR_ID; break;
32 case BuiltinType::UShort: ID = PREDEF_TYPE_USHORT_ID; break;
33 case BuiltinType::UInt: ID = PREDEF_TYPE_UINT_ID; break;
34 case BuiltinType::ULong: ID = PREDEF_TYPE_ULONG_ID; break;
35 case BuiltinType::ULongLong: ID = PREDEF_TYPE_ULONGLONG_ID; break;
36 case BuiltinType::UInt128: ID = PREDEF_TYPE_UINT128_ID; break;
37 case BuiltinType::Char_S: ID = PREDEF_TYPE_CHAR_S_ID; break;
38 case BuiltinType::SChar: ID = PREDEF_TYPE_SCHAR_ID; break;
39 case BuiltinType::WChar: ID = PREDEF_TYPE_WCHAR_ID; break;
40 case BuiltinType::Short: ID = PREDEF_TYPE_SHORT_ID; break;
41 case BuiltinType::Int: ID = PREDEF_TYPE_INT_ID; break;
42 case BuiltinType::Long: ID = PREDEF_TYPE_LONG_ID; break;
43 case BuiltinType::LongLong: ID = PREDEF_TYPE_LONGLONG_ID; break;
44 case BuiltinType::Int128: ID = PREDEF_TYPE_INT128_ID; break;
45 case BuiltinType::Float: ID = PREDEF_TYPE_FLOAT_ID; break;
46 case BuiltinType::Double: ID = PREDEF_TYPE_DOUBLE_ID; break;
47 case BuiltinType::LongDouble: ID = PREDEF_TYPE_LONGDOUBLE_ID; break;
48 case BuiltinType::NullPtr: ID = PREDEF_TYPE_NULLPTR_ID; break;
49 case BuiltinType::Char16: ID = PREDEF_TYPE_CHAR16_ID; break;
50 case BuiltinType::Char32: ID = PREDEF_TYPE_CHAR32_ID; break;
51 case BuiltinType::Overload: ID = PREDEF_TYPE_OVERLOAD_ID; break;
52 case BuiltinType::Dependent: ID = PREDEF_TYPE_DEPENDENT_ID; break;
53 case BuiltinType::ObjCId: ID = PREDEF_TYPE_OBJC_ID; break;
54 case BuiltinType::ObjCClass: ID = PREDEF_TYPE_OBJC_CLASS; break;
55 case BuiltinType::ObjCSel: ID = PREDEF_TYPE_OBJC_SEL; break;
56 case BuiltinType::UndeducedAuto:
57 assert(0 && "Should not see undeduced auto here");
58 break;
59 }
60
61 return TypeIdx(ID);
62}
63
Argyrios Kyrtzidis0eca89e2010-08-20 16:03:52 +000064unsigned serialization::ComputeHash(Selector Sel) {
65 unsigned N = Sel.getNumArgs();
66 if (N == 0)
67 ++N;
68 unsigned R = 5381;
69 for (unsigned I = 0; I != N; ++I)
70 if (IdentifierInfo *II = Sel.getIdentifierInfoForSlot(I))
71 R = llvm::HashString(II->getName(), R);
72 return R;
73}