Coverage Report

Created: 2020-02-18 08:44

/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/include/clang/AST/AbstractBasicReader.h
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1
//==--- AbstractBasiceReader.h - Abstract basic value deserialization -----===//
2
//
3
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4
// See https://llvm.org/LICENSE.txt for license information.
5
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6
//
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//===----------------------------------------------------------------------===//
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9
#ifndef CLANG_AST_ABSTRACTBASICREADER_H
10
#define CLANG_AST_ABSTRACTBASICREADER_H
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12
#include "clang/AST/DeclTemplate.h"
13
14
namespace clang {
15
namespace serialization {
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17
template <class T>
18
268
inline T makeNullableFromOptional(const Optional<T> &value) {
19
268
  return (value ? 
*value210
:
T()58
);
20
268
}
clang::QualType clang::serialization::makeNullableFromOptional<clang::QualType>(llvm::Optional<clang::QualType> const&)
Line
Count
Source
18
259
inline T makeNullableFromOptional(const Optional<T> &value) {
19
259
  return (value ? 
*value201
:
T()58
);
20
259
}
clang::TemplateName clang::serialization::makeNullableFromOptional<clang::TemplateName>(llvm::Optional<clang::TemplateName> const&)
Line
Count
Source
18
9
inline T makeNullableFromOptional(const Optional<T> &value) {
19
9
  return (value ? *value : 
T()0
);
20
9
}
21
22
template <class T>
23
887k
inline T *makePointerFromOptional(Optional<T *> value) {
24
887k
  return (value ? 
*value839k
:
nullptr47.8k
);
25
887k
}
clang::ConceptDecl* clang::serialization::makePointerFromOptional<clang::ConceptDecl>(llvm::Optional<clang::ConceptDecl*>)
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Source
23
259
inline T *makePointerFromOptional(Optional<T *> value) {
24
259
  return (value ? 
*value0
: nullptr);
25
259
}
clang::TagDecl* clang::serialization::makePointerFromOptional<clang::TagDecl>(llvm::Optional<clang::TagDecl*>)
Line
Count
Source
23
44.2k
inline T *makePointerFromOptional(Optional<T *> value) {
24
44.2k
  return (value ? 
*value6.51k
:
nullptr37.7k
);
25
44.2k
}
clang::TemplateTypeParmDecl* clang::serialization::makePointerFromOptional<clang::TemplateTypeParmDecl>(llvm::Optional<clang::TemplateTypeParmDecl*>)
Line
Count
Source
23
842k
inline T *makePointerFromOptional(Optional<T *> value) {
24
842k
  return (value ? 
*value832k
:
nullptr9.82k
);
25
842k
}
26
27
// PropertyReader is a class concept that requires the following method:
28
//   BasicReader find(llvm::StringRef propertyName);
29
// where BasicReader is some class conforming to the BasicReader concept.
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// An abstract AST-node reader is created with a PropertyReader and
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// performs a sequence of calls like so:
32
//   propertyReader.find(propertyName).read##TypeName()
33
// to read the properties of the node it is deserializing.
34
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// BasicReader is a class concept that requires methods like:
36
//   ValueType read##TypeName();
37
// where TypeName is the name of a PropertyType node from PropertiesBase.td
38
// and ValueType is the corresponding C++ type name.  The read method may
39
// require one or more buffer arguments.
40
//
41
// In addition to the concrete type names, BasicReader is expected to
42
// implement these methods:
43
//
44
//   template <class EnumType>
45
//   void writeEnum(T value);
46
//
47
//     Reads an enum value from the current property.  EnumType will always
48
//     be an enum type.  Only necessary if the BasicReader doesn't provide
49
//     type-specific readers for all the enum types.
50
//
51
//   template <class ValueType>
52
//   Optional<ValueType> writeOptional();
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//
54
//     Reads an optional value from the current property.
55
//
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//   template <class ValueType>
57
//   ArrayRef<ValueType> readArray(llvm::SmallVectorImpl<ValueType> &buffer);
58
//
59
//     Reads an array of values from the current property.
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//
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//   PropertyReader readObject();
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//
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//     Reads an object from the current property; the returned property
64
//     reader will be subjected to a sequence of property reads and then
65
//     discarded before any other properties are reader from the "outer"
66
//     property reader (which need not be the same type).  The sub-reader
67
//     will be used as if with the following code:
68
//
69
//       {
70
//         auto &&widget = W.find("widget").readObject();
71
//         auto kind = widget.find("kind").readWidgetKind();
72
//         auto declaration = widget.find("declaration").readDeclRef();
73
//         return Widget(kind, declaration);
74
//       }
75
76
// ReadDispatcher does type-based forwarding to one of the read methods
77
// on the BasicReader passed in:
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//
79
// template <class ValueType>
80
// struct ReadDispatcher {
81
//   template <class BasicReader, class... BufferTypes>
82
//   static ValueType read(BasicReader &R, BufferTypes &&...);
83
// };
84
85
// BasicReaderBase provides convenience implementations of the read methods
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// for EnumPropertyType and SubclassPropertyType types that just defer to
87
// the "underlying" implementations (for UInt32 and the base class,
88
// respectively).
89
//
90
// template <class Impl>
91
// class BasicReaderBase {
92
// protected:
93
//   BasicReaderBase(ASTContext &ctx);
94
//   Impl &asImpl();
95
// public:
96
//   ASTContext &getASTContext();
97
//   ...
98
// };
99
100
// The actual classes are auto-generated; see ClangASTPropertiesEmitter.cpp.
101
#include "clang/AST/AbstractBasicReader.inc"
102
103
/// DataStreamBasicReader provides convenience implementations for many
104
/// BasicReader methods based on the assumption that the
105
/// ultimate reader implementation is based on a variable-length stream
106
/// of unstructured data (like Clang's module files).  It is designed
107
/// to pair with DataStreamBasicWriter.
108
///
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/// This class can also act as a PropertyReader, implementing find("...")
110
/// by simply forwarding to itself.
111
///
112
/// Unimplemented methods:
113
///   readBool
114
///   readUInt32
115
///   readUInt64
116
///   readIdentifier
117
///   readSelector
118
///   readSourceLocation
119
///   readQualType
120
///   readStmtRef
121
///   readDeclRef
122
template <class Impl>
123
class DataStreamBasicReader : public BasicReaderBase<Impl> {
124
protected:
125
  using BasicReaderBase<Impl>::asImpl;
126
9.30M
  DataStreamBasicReader(ASTContext &ctx) : BasicReaderBase<Impl>(ctx) {}
127
128
public:
129
  using BasicReaderBase<Impl>::getASTContext;
130
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  /// Implement property-find by ignoring it.  We rely on properties being
132
  /// serialized and deserialized in a reliable order instead.
133
33.3M
  Impl &find(const char *propertyName) {
134
33.3M
    return asImpl();
135
33.3M
  }
136
137
  template <class T>
138
10.3M
  T readEnum() {
139
10.3M
    return T(asImpl().readUInt32());
140
10.3M
  }
clang::TemplateArgument::ArgKind clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::TemplateArgument::ArgKind>()
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Count
Source
138
3.08M
  T readEnum() {
139
3.08M
    return T(asImpl().readUInt32());
140
3.08M
  }
clang::TemplateName::NameKind clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::TemplateName::NameKind>()
Line
Count
Source
138
703k
  T readEnum() {
139
703k
    return T(asImpl().readUInt32());
140
703k
  }
clang::OverloadedOperatorKind clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::OverloadedOperatorKind>()
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Count
Source
138
178k
  T readEnum() {
139
178k
    return T(asImpl().readUInt32());
140
178k
  }
clang::ArrayType::ArraySizeModifier clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::ArrayType::ArraySizeModifier>()
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Count
Source
138
13.3k
  T readEnum() {
139
13.3k
    return T(asImpl().readUInt32());
140
13.3k
  }
clang::attr::Kind clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::attr::Kind>()
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Count
Source
138
6.66k
  T readEnum() {
139
6.66k
    return T(asImpl().readUInt32());
140
6.66k
  }
Unexecuted instantiation: clang::BuiltinType::Kind clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::BuiltinType::Kind>()
clang::AutoTypeKeyword clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::AutoTypeKeyword>()
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Count
Source
138
259
  T readEnum() {
139
259
    return T(asImpl().readUInt32());
140
259
  }
clang::ElaboratedTypeKeyword clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::ElaboratedTypeKeyword>()
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Count
Source
138
184k
  T readEnum() {
139
184k
    return T(asImpl().readUInt32());
140
184k
  }
clang::VectorType::VectorKind clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::VectorType::VectorKind>()
Line
Count
Source
138
758
  T readEnum() {
139
758
    return T(asImpl().readUInt32());
140
758
  }
clang::CallingConv clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::CallingConv>()
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Count
Source
138
344k
  T readEnum() {
139
344k
    return T(asImpl().readUInt32());
140
344k
  }
clang::RefQualifierKind clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::RefQualifierKind>()
Line
Count
Source
138
344k
  T readEnum() {
139
344k
    return T(asImpl().readUInt32());
140
344k
  }
clang::UnaryTransformType::UTTKind clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::UnaryTransformType::UTTKind>()
Line
Count
Source
138
26
  T readEnum() {
139
26
    return T(asImpl().readUInt32());
140
26
  }
clang::DeclarationName::NameKind clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::DeclarationName::NameKind>()
Line
Count
Source
138
4.86M
  T readEnum() {
139
4.86M
    return T(asImpl().readUInt32());
140
4.86M
  }
clang::NestedNameSpecifier::SpecifierKind clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::NestedNameSpecifier::SpecifierKind>()
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Count
Source
138
601k
  T readEnum() {
139
601k
    return T(asImpl().readUInt32());
140
601k
  }
clang::OpenMPLastprivateModifier clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::OpenMPLastprivateModifier>()
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Count
Source
138
394
  T readEnum() {
139
394
    return T(asImpl().readUInt32());
140
394
  }
clang::OpenMPOrderClauseKind clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<clang::OpenMPOrderClauseKind>()
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Count
Source
138
43
  T readEnum() {
139
43
    return T(asImpl().readUInt32());
140
43
  }
llvm::omp::TraitSet clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<llvm::omp::TraitSet>()
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Count
Source
138
323
  T readEnum() {
139
323
    return T(asImpl().readUInt32());
140
323
  }
llvm::omp::TraitSelector clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<llvm::omp::TraitSelector>()
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Count
Source
138
323
  T readEnum() {
139
323
    return T(asImpl().readUInt32());
140
323
  }
llvm::omp::TraitProperty clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readEnum<llvm::omp::TraitProperty>()
Line
Count
Source
138
522
  T readEnum() {
139
522
    return T(asImpl().readUInt32());
140
522
  }
141
142
  // Implement object reading by forwarding to this, collapsing the
143
  // structure into a single data stream.
144
8.65M
  Impl &readObject() { return asImpl(); }
145
146
  template <class T>
147
1.47M
  llvm::ArrayRef<T> readArray(llvm::SmallVectorImpl<T> &buffer) {
148
1.47M
    assert(buffer.empty());
149
1.47M
150
1.47M
    uint32_t size = asImpl().readUInt32();
151
1.47M
    buffer.reserve(size);
152
1.47M
153
3.27M
    for (uint32_t i = 0; i != size; 
++i1.80M
) {
154
1.80M
      buffer.push_back(ReadDispatcher<T>::read(asImpl()));
155
1.80M
    }
156
1.47M
    return buffer;
157
1.47M
  }
Unexecuted instantiation: llvm::ArrayRef<clang::NamedDecl*> clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readArray<clang::NamedDecl*>(llvm::SmallVectorImpl<clang::NamedDecl*>&)
llvm::ArrayRef<clang::TemplateArgument> clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readArray<clang::TemplateArgument>(llvm::SmallVectorImpl<clang::TemplateArgument>&)
Line
Count
Source
147
749k
  llvm::ArrayRef<T> readArray(llvm::SmallVectorImpl<T> &buffer) {
148
749k
    assert(buffer.empty());
149
749k
150
749k
    uint32_t size = asImpl().readUInt32();
151
749k
    buffer.reserve(size);
152
749k
153
2.02M
    for (uint32_t i = 0; i != size; 
++i1.27M
) {
154
1.27M
      buffer.push_back(ReadDispatcher<T>::read(asImpl()));
155
1.27M
    }
156
749k
    return buffer;
157
749k
  }
llvm::ArrayRef<clang::QualType> clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readArray<clang::QualType>(llvm::SmallVectorImpl<clang::QualType>&)
Line
Count
Source
147
346k
  llvm::ArrayRef<T> readArray(llvm::SmallVectorImpl<T> &buffer) {
148
346k
    assert(buffer.empty());
149
346k
150
346k
    uint32_t size = asImpl().readUInt32();
151
346k
    buffer.reserve(size);
152
346k
153
878k
    for (uint32_t i = 0; i != size; 
++i531k
) {
154
531k
      buffer.push_back(ReadDispatcher<T>::read(asImpl()));
155
531k
    }
156
346k
    return buffer;
157
346k
  }
llvm::ArrayRef<clang::FunctionType::ExtParameterInfo> clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readArray<clang::FunctionType::ExtParameterInfo>(llvm::SmallVectorImpl<clang::FunctionType::ExtParameterInfo>&)
Line
Count
Source
147
344k
  llvm::ArrayRef<T> readArray(llvm::SmallVectorImpl<T> &buffer) {
148
344k
    assert(buffer.empty());
149
344k
150
344k
    uint32_t size = asImpl().readUInt32();
151
344k
    buffer.reserve(size);
152
344k
153
344k
    for (uint32_t i = 0; i != size; 
++i2
) {
154
2
      buffer.push_back(ReadDispatcher<T>::read(asImpl()));
155
2
    }
156
344k
    return buffer;
157
344k
  }
llvm::ArrayRef<clang::ObjCProtocolDecl*> clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readArray<clang::ObjCProtocolDecl*>(llvm::SmallVectorImpl<clang::ObjCProtocolDecl*>&)
Line
Count
Source
147
29.8k
  llvm::ArrayRef<T> readArray(llvm::SmallVectorImpl<T> &buffer) {
148
29.8k
    assert(buffer.empty());
149
29.8k
150
29.8k
    uint32_t size = asImpl().readUInt32();
151
29.8k
    buffer.reserve(size);
152
29.8k
153
30.2k
    for (uint32_t i = 0; i != size; 
++i331
) {
154
331
      buffer.push_back(ReadDispatcher<T>::read(asImpl()));
155
331
    }
156
29.8k
    return buffer;
157
29.8k
  }
158
159
  template <class T, class... Args>
160
1.88M
  llvm::Optional<T> readOptional(Args &&...args) {
161
1.88M
    return UnpackOptionalValue<T>::unpack(
162
1.88M
             ReadDispatcher<T>::read(asImpl(), std::forward<Args>(args)...));
163
1.88M
  }
llvm::Optional<clang::IdentifierInfo*> clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readOptional<clang::IdentifierInfo*>()
Line
Count
Source
160
178
  llvm::Optional<T> readOptional(Args &&...args) {
161
178
    return UnpackOptionalValue<T>::unpack(
162
178
             ReadDispatcher<T>::read(asImpl(), std::forward<Args>(args)...));
163
178
  }
llvm::Optional<unsigned int> clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readOptional<unsigned int>()
Line
Count
Source
160
20.3k
  llvm::Optional<T> readOptional(Args &&...args) {
161
20.3k
    return UnpackOptionalValue<T>::unpack(
162
20.3k
             ReadDispatcher<T>::read(asImpl(), std::forward<Args>(args)...));
163
20.3k
  }
llvm::Optional<clang::QualType> clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readOptional<clang::QualType>()
Line
Count
Source
160
974k
  llvm::Optional<T> readOptional(Args &&...args) {
161
974k
    return UnpackOptionalValue<T>::unpack(
162
974k
             ReadDispatcher<T>::read(asImpl(), std::forward<Args>(args)...));
163
974k
  }
llvm::Optional<clang::ConceptDecl*> clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readOptional<clang::ConceptDecl*>()
Line
Count
Source
160
259
  llvm::Optional<T> readOptional(Args &&...args) {
161
259
    return UnpackOptionalValue<T>::unpack(
162
259
             ReadDispatcher<T>::read(asImpl(), std::forward<Args>(args)...));
163
259
  }
llvm::Optional<clang::TemplateName> clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readOptional<clang::TemplateName>()
Line
Count
Source
160
9
  llvm::Optional<T> readOptional(Args &&...args) {
161
9
    return UnpackOptionalValue<T>::unpack(
162
9
             ReadDispatcher<T>::read(asImpl(), std::forward<Args>(args)...));
163
9
  }
llvm::Optional<clang::TagDecl*> clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readOptional<clang::TagDecl*>()
Line
Count
Source
160
44.2k
  llvm::Optional<T> readOptional(Args &&...args) {
161
44.2k
    return UnpackOptionalValue<T>::unpack(
162
44.2k
             ReadDispatcher<T>::read(asImpl(), std::forward<Args>(args)...));
163
44.2k
  }
llvm::Optional<clang::TemplateTypeParmDecl*> clang::serialization::DataStreamBasicReader<clang::ASTRecordReader>::readOptional<clang::TemplateTypeParmDecl*>()
Line
Count
Source
160
842k
  llvm::Optional<T> readOptional(Args &&...args) {
161
842k
    return UnpackOptionalValue<T>::unpack(
162
842k
             ReadDispatcher<T>::read(asImpl(), std::forward<Args>(args)...));
163
842k
  }
164
165
234k
  llvm::APSInt readAPSInt() {
166
234k
    bool isUnsigned = asImpl().readBool();
167
234k
    llvm::APInt value = asImpl().readAPInt();
168
234k
    return llvm::APSInt(std::move(value), isUnsigned);
169
234k
  }
170
171
393k
  llvm::APInt readAPInt() {
172
393k
    unsigned bitWidth = asImpl().readUInt32();
173
393k
    unsigned numWords = llvm::APInt::getNumWords(bitWidth);
174
393k
    llvm::SmallVector<uint64_t, 4> data;
175
786k
    for (uint32_t i = 0; i != numWords; 
++i393k
)
176
393k
      data.push_back(asImpl().readUInt64());
177
393k
    return llvm::APInt(bitWidth, numWords, &data[0]);
178
393k
  }
179
180
  Qualifiers readQualifiers() {
181
    static_assert(sizeof(Qualifiers().getAsOpaqueValue()) <= sizeof(uint32_t),
182
                  "update this if the value size changes");
183
    uint32_t value = asImpl().readUInt32();
184
    return Qualifiers::fromOpaqueValue(value);
185
  }
186
187
  FunctionProtoType::ExceptionSpecInfo
188
344k
  readExceptionSpecInfo(llvm::SmallVectorImpl<QualType> &buffer) {
189
344k
    FunctionProtoType::ExceptionSpecInfo esi;
190
344k
    esi.Type = ExceptionSpecificationType(asImpl().readUInt32());
191
344k
    if (esi.Type == EST_Dynamic) {
192
4
      esi.Exceptions = asImpl().template readArray<QualType>(buffer);
193
344k
    } else if (isComputedNoexcept(esi.Type)) {
194
21.8k
      esi.NoexceptExpr = asImpl().readExprRef();
195
322k
    } else if (esi.Type == EST_Uninstantiated) {
196
366
      esi.SourceDecl = asImpl().readFunctionDeclRef();
197
366
      esi.SourceTemplate = asImpl().readFunctionDeclRef();
198
322k
    } else if (esi.Type == EST_Unevaluated) {
199
6.35k
      esi.SourceDecl = asImpl().readFunctionDeclRef();
200
6.35k
    }
201
344k
    return esi;
202
344k
  }
203
204
2
  FunctionProtoType::ExtParameterInfo readExtParameterInfo() {
205
2
    static_assert(sizeof(FunctionProtoType::ExtParameterInfo().getOpaqueValue())
206
2
                    <= sizeof(uint32_t),
207
2
                  "opaque value doesn't fit into uint32_t");
208
2
    uint32_t value = asImpl().readUInt32();
209
2
    return FunctionProtoType::ExtParameterInfo::getFromOpaqueValue(value);
210
2
  }
211
212
184k
  NestedNameSpecifier *readNestedNameSpecifier() {
213
184k
    auto &ctx = getASTContext();
214
184k
215
184k
    // We build this up iteratively.
216
184k
    NestedNameSpecifier *cur = nullptr;
217
184k
218
184k
    uint32_t depth = asImpl().readUInt32();
219
362k
    for (uint32_t i = 0; i != depth; 
++i177k
) {
220
177k
      auto kind = asImpl().readNestedNameSpecifierKind();
221
177k
      switch (kind) {
222
168
      case NestedNameSpecifier::Identifier:
223
168
        cur = NestedNameSpecifier::Create(ctx, cur,
224
168
                                          asImpl().readIdentifier());
225
168
        continue;
226
0
227
4.41k
      case NestedNameSpecifier::Namespace:
228
4.41k
        cur = NestedNameSpecifier::Create(ctx, cur,
229
4.41k
                                          asImpl().readNamespaceDeclRef());
230
4.41k
        continue;
231
0
232
4
      case NestedNameSpecifier::NamespaceAlias:
233
4
        cur = NestedNameSpecifier::Create(ctx, cur,
234
4
                                     asImpl().readNamespaceAliasDeclRef());
235
4
        continue;
236
0
237
173k
      case NestedNameSpecifier::TypeSpec:
238
173k
      case NestedNameSpecifier::TypeSpecWithTemplate:
239
173k
        cur = NestedNameSpecifier::Create(ctx, cur,
240
173k
                          kind == NestedNameSpecifier::TypeSpecWithTemplate,
241
173k
                          asImpl().readQualType().getTypePtr());
242
173k
        continue;
243
173k
244
173k
      case NestedNameSpecifier::Global:
245
6
        cur = NestedNameSpecifier::GlobalSpecifier(ctx);
246
6
        continue;
247
173k
248
173k
      case NestedNameSpecifier::Super:
249
0
        cur = NestedNameSpecifier::SuperSpecifier(ctx,
250
0
                                            asImpl().readCXXRecordDeclRef());
251
0
        continue;
252
0
      }
253
0
      llvm_unreachable("bad nested name specifier kind");
254
0
    }
255
184k
256
184k
    return cur;
257
184k
  }
258
};
259
260
} // end namespace serialization
261
} // end namespace clang
262
263
#endif