Coverage Report

Created: 2021-01-26 06:56

/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/include/clang/Sema/Ownership.h
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//===- Ownership.h - Parser ownership helpers -------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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//  This file contains classes for managing ownership of Stmt and Expr nodes.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_SEMA_OWNERSHIP_H
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#define LLVM_CLANG_SEMA_OWNERSHIP_H
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#include "clang/AST/Expr.h"
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#include "clang/Basic/LLVM.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/Support/PointerLikeTypeTraits.h"
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#include "llvm/Support/type_traits.h"
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#include <cassert>
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#include <cstddef>
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#include <cstdint>
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//===----------------------------------------------------------------------===//
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// OpaquePtr
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//===----------------------------------------------------------------------===//
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namespace clang {
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class CXXBaseSpecifier;
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class CXXCtorInitializer;
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class Decl;
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class Expr;
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class ParsedTemplateArgument;
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class QualType;
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class Stmt;
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class TemplateName;
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class TemplateParameterList;
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  /// Wrapper for void* pointer.
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  /// \tparam PtrTy Either a pointer type like 'T*' or a type that behaves like
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  ///               a pointer.
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  ///
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  /// This is a very simple POD type that wraps a pointer that the Parser
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  /// doesn't know about but that Sema or another client does.  The PtrTy
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  /// template argument is used to make sure that "Decl" pointers are not
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  /// compatible with "Type" pointers for example.
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  template <class PtrTy>
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  class OpaquePtr {
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    void *Ptr = nullptr;
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53
89.6M
    explicit OpaquePtr(void *Ptr) : Ptr(Ptr) {}
clang::OpaquePtr<clang::QualType>::OpaquePtr(void*)
Line
Count
Source
53
89.6M
    explicit OpaquePtr(void *Ptr) : Ptr(Ptr) {}
clang::OpaquePtr<clang::TemplateName>::OpaquePtr(void*)
Line
Count
Source
53
6.58k
    explicit OpaquePtr(void *Ptr) : Ptr(Ptr) {}
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    using Traits = llvm::PointerLikeTypeTraits<PtrTy>;
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  public:
58
302M
    OpaquePtr(std::nullptr_t = nullptr) {}
clang::OpaquePtr<clang::DeclGroupRef>::OpaquePtr(std::nullptr_t)
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Count
Source
58
40.4M
    OpaquePtr(std::nullptr_t = nullptr) {}
clang::OpaquePtr<clang::TemplateName>::OpaquePtr(std::nullptr_t)
Line
Count
Source
58
28.9M
    OpaquePtr(std::nullptr_t = nullptr) {}
clang::OpaquePtr<clang::QualType>::OpaquePtr(std::nullptr_t)
Line
Count
Source
58
233M
    OpaquePtr(std::nullptr_t = nullptr) {}
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60
97.9M
    static OpaquePtr make(PtrTy P) { OpaquePtr OP; OP.set(P); return OP; }
clang::OpaquePtr<clang::QualType>::make(clang::QualType)
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Count
Source
60
72.6M
    static OpaquePtr make(PtrTy P) { OpaquePtr OP; OP.set(P); return OP; }
clang::OpaquePtr<clang::TemplateName>::make(clang::TemplateName)
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Count
Source
60
2.81M
    static OpaquePtr make(PtrTy P) { OpaquePtr OP; OP.set(P); return OP; }
clang::OpaquePtr<clang::DeclGroupRef>::make(clang::DeclGroupRef)
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Source
60
22.4M
    static OpaquePtr make(PtrTy P) { OpaquePtr OP; OP.set(P); return OP; }
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62
    /// Returns plain pointer to the entity pointed by this wrapper.
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    /// \tparam PointeeT Type of pointed entity.
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    ///
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    /// It is identical to getPtrAs<PointeeT*>.
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    template <typename PointeeT> PointeeT* getPtrTo() const {
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      return get();
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    }
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    /// Returns pointer converted to the specified type.
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    /// \tparam PtrT Result pointer type.  There must be implicit conversion
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    ///              from PtrTy to PtrT.
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    ///
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    /// In contrast to getPtrTo, this method allows the return type to be
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    /// a smart pointer.
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    template <typename PtrT> PtrT getPtrAs() const {
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      return get();
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    }
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80
116M
    PtrTy get() const {
81
116M
      return Traits::getFromVoidPointer(Ptr);
82
116M
    }
clang::OpaquePtr<clang::DeclGroupRef>::get() const
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Source
80
17.2M
    PtrTy get() const {
81
17.2M
      return Traits::getFromVoidPointer(Ptr);
82
17.2M
    }
clang::OpaquePtr<clang::QualType>::get() const
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Count
Source
80
96.7M
    PtrTy get() const {
81
96.7M
      return Traits::getFromVoidPointer(Ptr);
82
96.7M
    }
clang::OpaquePtr<clang::TemplateName>::get() const
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Count
Source
80
2.83M
    PtrTy get() const {
81
2.83M
      return Traits::getFromVoidPointer(Ptr);
82
2.83M
    }
83
84
97.9M
    void set(PtrTy P) {
85
97.9M
      Ptr = Traits::getAsVoidPointer(P);
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97.9M
    }
clang::OpaquePtr<clang::QualType>::set(clang::QualType)
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Count
Source
84
72.6M
    void set(PtrTy P) {
85
72.6M
      Ptr = Traits::getAsVoidPointer(P);
86
72.6M
    }
clang::OpaquePtr<clang::TemplateName>::set(clang::TemplateName)
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Count
Source
84
2.81M
    void set(PtrTy P) {
85
2.81M
      Ptr = Traits::getAsVoidPointer(P);
86
2.81M
    }
clang::OpaquePtr<clang::DeclGroupRef>::set(clang::DeclGroupRef)
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Count
Source
84
22.4M
    void set(PtrTy P) {
85
22.4M
      Ptr = Traits::getAsVoidPointer(P);
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22.4M
    }
87
88
241M
    explicit operator bool() const { return Ptr != nullptr; }
clang::OpaquePtr<clang::DeclGroupRef>::operator bool() const
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Count
Source
88
16.0M
    explicit operator bool() const { return Ptr != nullptr; }
clang::OpaquePtr<clang::QualType>::operator bool() const
Line
Count
Source
88
222M
    explicit operator bool() const { return Ptr != nullptr; }
clang::OpaquePtr<clang::TemplateName>::operator bool() const
Line
Count
Source
88
2.65M
    explicit operator bool() const { return Ptr != nullptr; }
89
90
100M
    void *getAsOpaquePtr() const { return Ptr; }
clang::OpaquePtr<clang::QualType>::getAsOpaquePtr() const
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Count
Source
90
100M
    void *getAsOpaquePtr() const { return Ptr; }
clang::OpaquePtr<clang::TemplateName>::getAsOpaquePtr() const
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Count
Source
90
5.26k
    void *getAsOpaquePtr() const { return Ptr; }
clang::OpaquePtr<clang::DeclGroupRef>::getAsOpaquePtr() const
Line
Count
Source
90
2
    void *getAsOpaquePtr() const { return Ptr; }
91
89.6M
    static OpaquePtr getFromOpaquePtr(void *P) { return OpaquePtr(P); }
clang::OpaquePtr<clang::QualType>::getFromOpaquePtr(void*)
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Count
Source
91
89.6M
    static OpaquePtr getFromOpaquePtr(void *P) { return OpaquePtr(P); }
clang::OpaquePtr<clang::TemplateName>::getFromOpaquePtr(void*)
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Count
Source
91
6.58k
    static OpaquePtr getFromOpaquePtr(void *P) { return OpaquePtr(P); }
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  };
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  /// UnionOpaquePtr - A version of OpaquePtr suitable for membership
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  /// in a union.
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  template <class T> struct UnionOpaquePtr {
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    void *Ptr;
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    static UnionOpaquePtr make(OpaquePtr<T> P) {
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      UnionOpaquePtr OP = { P.getAsOpaquePtr() };
101
      return OP;
102
    }
103
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63.7M
    OpaquePtr<T> get() const { return OpaquePtr<T>::getFromOpaquePtr(Ptr); }
clang::UnionOpaquePtr<clang::QualType>::get() const
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Count
Source
104
63.7M
    OpaquePtr<T> get() const { return OpaquePtr<T>::getFromOpaquePtr(Ptr); }
clang::UnionOpaquePtr<clang::TemplateName>::get() const
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Count
Source
104
1.70k
    OpaquePtr<T> get() const { return OpaquePtr<T>::getFromOpaquePtr(Ptr); }
105
63.7M
    operator OpaquePtr<T>() const { return get(); }
106
107
74.3M
    UnionOpaquePtr &operator=(OpaquePtr<T> P) {
108
74.3M
      Ptr = P.getAsOpaquePtr();
109
74.3M
      return *this;
110
74.3M
    }
clang::UnionOpaquePtr<clang::QualType>::operator=(clang::OpaquePtr<clang::QualType>)
Line
Count
Source
107
74.3M
    UnionOpaquePtr &operator=(OpaquePtr<T> P) {
108
74.3M
      Ptr = P.getAsOpaquePtr();
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74.3M
      return *this;
110
74.3M
    }
clang::UnionOpaquePtr<clang::TemplateName>::operator=(clang::OpaquePtr<clang::TemplateName>)
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Count
Source
107
427
    UnionOpaquePtr &operator=(OpaquePtr<T> P) {
108
427
      Ptr = P.getAsOpaquePtr();
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427
      return *this;
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427
    }
111
  };
112
113
} // namespace clang
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namespace llvm {
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  template <class T>
118
  struct PointerLikeTypeTraits<clang::OpaquePtr<T>> {
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    static constexpr int NumLowBitsAvailable = 0;
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    static inline void *getAsVoidPointer(clang::OpaquePtr<T> P) {
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      // FIXME: Doesn't work? return P.getAs< void >();
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      return P.getAsOpaquePtr();
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    }
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    static inline clang::OpaquePtr<T> getFromVoidPointer(void *P) {
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      return clang::OpaquePtr<T>::getFromOpaquePtr(P);
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    }
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  };
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} // namespace llvm
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namespace clang {
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  // Basic
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class StreamingDiagnostic;
137
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// Determines whether the low bit of the result pointer for the
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// given UID is always zero. If so, ActionResult will use that bit
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// for it's "invalid" flag.
141
template <class Ptr> struct IsResultPtrLowBitFree {
142
  static const bool value = false;
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  };
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  /// ActionResult - This structure is used while parsing/acting on
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  /// expressions, stmts, etc.  It encapsulates both the object returned by
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  /// the action, plus a sense of whether or not it is valid.
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  /// When CompressInvalid is true, the "invalid" flag will be
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  /// stored in the low bit of the Val pointer.
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  template<class PtrTy,
151
           bool CompressInvalid = IsResultPtrLowBitFree<PtrTy>::value>
152
  class ActionResult {
153
    PtrTy Val;
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    bool Invalid;
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  public:
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22.1M
    ActionResult(bool Invalid = false) : Val(PtrTy()), Invalid(Invalid) {}
clang::ActionResult<clang::OpaquePtr<clang::QualType>, false>::ActionResult(bool)
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157
20.1M
    ActionResult(bool Invalid = false) : Val(PtrTy()), Invalid(Invalid) {}
clang::ActionResult<clang::Decl*, false>::ActionResult(bool)
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Count
Source
157
1.97M
    ActionResult(bool Invalid = false) : Val(PtrTy()), Invalid(Invalid) {}
clang::ActionResult<clang::CXXRecordDecl*, false>::ActionResult(bool)
Line
Count
Source
157
31
    ActionResult(bool Invalid = false) : Val(PtrTy()), Invalid(Invalid) {}
158
52.8M
    ActionResult(PtrTy val) : Val(val), Invalid(false) {}
clang::ActionResult<clang::OpaquePtr<clang::QualType>, false>::ActionResult(clang::OpaquePtr<clang::QualType>)
Line
Count
Source
158
51.5M
    ActionResult(PtrTy val) : Val(val), Invalid(false) {}
clang::ActionResult<clang::Decl*, false>::ActionResult(clang::Decl*)
Line
Count
Source
158
563k
    ActionResult(PtrTy val) : Val(val), Invalid(false) {}
clang::ActionResult<clang::CXXRecordDecl*, false>::ActionResult(clang::CXXRecordDecl*)
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Count
Source
158
754k
    ActionResult(PtrTy val) : Val(val), Invalid(false) {}
159
    ActionResult(const DiagnosticBuilder &) : Val(PtrTy()), Invalid(true) {}
160
161
    // These two overloads prevent void* -> bool conversions.
162
    ActionResult(const void *) = delete;
163
    ActionResult(volatile void *) = delete;
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165
90.2M
    bool isInvalid() const { return Invalid; }
clang::ActionResult<clang::OpaquePtr<clang::QualType>, false>::isInvalid() const
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Count
Source
165
86.2M
    bool isInvalid() const { return Invalid; }
clang::ActionResult<clang::Decl*, false>::isInvalid() const
Line
Count
Source
165
3.97M
    bool isInvalid() const { return Invalid; }
clang::ActionResult<clang::CXXRecordDecl*, false>::isInvalid() const
Line
Count
Source
165
31
    bool isInvalid() const { return Invalid; }
166
16.2M
    bool isUsable() const { return !Invalid && 
Val16.2M
; }
clang::ActionResult<clang::Decl*, false>::isUsable() const
Line
Count
Source
166
77.0k
    bool isUsable() const { return !Invalid && Val; }
clang::ActionResult<clang::OpaquePtr<clang::QualType>, false>::isUsable() const
Line
Count
Source
166
15.3M
    bool isUsable() const { return !Invalid && 
Val15.3M
; }
clang::ActionResult<clang::CXXRecordDecl*, false>::isUsable() const
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Count
Source
166
754k
    bool isUsable() const { return !Invalid && 
Val754k
; }
167
2.32M
    bool isUnset() const { return !Invalid && 
!Val2.32M
; }
168
169
99.6M
    PtrTy get() const { return Val; }
clang::ActionResult<clang::OpaquePtr<clang::QualType>, false>::get() const
Line
Count
Source
169
93.4M
    PtrTy get() const { return Val; }
clang::ActionResult<clang::Decl*, false>::get() const
Line
Count
Source
169
5.42M
    PtrTy get() const { return Val; }
clang::ActionResult<clang::CXXRecordDecl*, false>::get() const
Line
Count
Source
169
754k
    PtrTy get() const { return Val; }
170
    template <typename T> T *getAs() { return static_cast<T*>(get()); }
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172
    void set(PtrTy V) { Val = V; }
173
174
1.74M
    const ActionResult &operator=(PtrTy RHS) {
175
1.74M
      Val = RHS;
176
1.74M
      Invalid = false;
177
1.74M
      return *this;
178
1.74M
    }
clang::ActionResult<clang::Decl*, false>::operator=(clang::Decl*)
Line
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Source
174
1.74M
    const ActionResult &operator=(PtrTy RHS) {
175
1.74M
      Val = RHS;
176
1.74M
      Invalid = false;
177
1.74M
      return *this;
178
1.74M
    }
Unexecuted instantiation: clang::ActionResult<clang::OpaquePtr<clang::QualType>, false>::operator=(clang::OpaquePtr<clang::QualType>)
179
  };
180
181
  // This ActionResult partial specialization places the "invalid"
182
  // flag into the low bit of the pointer.
183
  template<typename PtrTy>
184
  class ActionResult<PtrTy, true> {
185
    // A pointer whose low bit is 1 if this result is invalid, 0
186
    // otherwise.
187
    uintptr_t PtrWithInvalid;
188
189
    using PtrTraits = llvm::PointerLikeTypeTraits<PtrTy>;
190
191
  public:
192
    ActionResult(bool Invalid = false)
193
180M
        : PtrWithInvalid(static_cast<uintptr_t>(Invalid)) {}
clang::ActionResult<clang::Expr*, true>::ActionResult(bool)
Line
Count
Source
193
162M
        : PtrWithInvalid(static_cast<uintptr_t>(Invalid)) {}
clang::ActionResult<clang::CXXCtorInitializer*, true>::ActionResult(bool)
Line
Count
Source
193
32.5k
        : PtrWithInvalid(static_cast<uintptr_t>(Invalid)) {}
clang::ActionResult<clang::CXXBaseSpecifier*, true>::ActionResult(bool)
Line
Count
Source
193
241
        : PtrWithInvalid(static_cast<uintptr_t>(Invalid)) {}
clang::ActionResult<clang::Stmt*, true>::ActionResult(bool)
Line
Count
Source
193
17.9M
        : PtrWithInvalid(static_cast<uintptr_t>(Invalid)) {}
194
195
347M
    ActionResult(PtrTy V) {
196
347M
      void *VP = PtrTraits::getAsVoidPointer(V);
197
347M
      PtrWithInvalid = reinterpret_cast<uintptr_t>(VP);
198
347M
      assert((PtrWithInvalid & 0x01) == 0 && "Badly aligned pointer");
199
347M
    }
clang::ActionResult<clang::Expr*, true>::ActionResult(clang::Expr*)
Line
Count
Source
195
334M
    ActionResult(PtrTy V) {
196
334M
      void *VP = PtrTraits::getAsVoidPointer(V);
197
334M
      PtrWithInvalid = reinterpret_cast<uintptr_t>(VP);
198
334M
      assert((PtrWithInvalid & 0x01) == 0 && "Badly aligned pointer");
199
334M
    }
clang::ActionResult<clang::CXXBaseSpecifier*, true>::ActionResult(clang::CXXBaseSpecifier*)
Line
Count
Source
195
196k
    ActionResult(PtrTy V) {
196
196k
      void *VP = PtrTraits::getAsVoidPointer(V);
197
196k
      PtrWithInvalid = reinterpret_cast<uintptr_t>(VP);
198
196k
      assert((PtrWithInvalid & 0x01) == 0 && "Badly aligned pointer");
199
196k
    }
clang::ActionResult<clang::CXXCtorInitializer*, true>::ActionResult(clang::CXXCtorInitializer*)
Line
Count
Source
195
235k
    ActionResult(PtrTy V) {
196
235k
      void *VP = PtrTraits::getAsVoidPointer(V);
197
235k
      PtrWithInvalid = reinterpret_cast<uintptr_t>(VP);
198
235k
      assert((PtrWithInvalid & 0x01) == 0 && "Badly aligned pointer");
199
235k
    }
clang::ActionResult<clang::Stmt*, true>::ActionResult(clang::Stmt*)
Line
Count
Source
195
12.1M
    ActionResult(PtrTy V) {
196
12.1M
      void *VP = PtrTraits::getAsVoidPointer(V);
197
12.1M
      PtrWithInvalid = reinterpret_cast<uintptr_t>(VP);
198
12.1M
      assert((PtrWithInvalid & 0x01) == 0 && "Badly aligned pointer");
199
12.1M
    }
200
201
1
    ActionResult(const DiagnosticBuilder &) : PtrWithInvalid(0x01) {}
Unexecuted instantiation: clang::ActionResult<clang::CXXCtorInitializer*, true>::ActionResult(clang::DiagnosticBuilder const&)
clang::ActionResult<clang::Expr*, true>::ActionResult(clang::DiagnosticBuilder const&)
Line
Count
Source
201
1
    ActionResult(const DiagnosticBuilder &) : PtrWithInvalid(0x01) {}
202
203
    // These two overloads prevent void* -> bool conversions.
204
    ActionResult(const void *) = delete;
205
    ActionResult(volatile void *) = delete;
206
207
444M
    bool isInvalid() const { return PtrWithInvalid & 0x01; }
clang::ActionResult<clang::Expr*, true>::isInvalid() const
Line
Count
Source
207
433M
    bool isInvalid() const { return PtrWithInvalid & 0x01; }
clang::ActionResult<clang::Stmt*, true>::isInvalid() const
Line
Count
Source
207
10.3M
    bool isInvalid() const { return PtrWithInvalid & 0x01; }
clang::ActionResult<clang::CXXBaseSpecifier*, true>::isInvalid() const
Line
Count
Source
207
196k
    bool isInvalid() const { return PtrWithInvalid & 0x01; }
clang::ActionResult<clang::CXXCtorInitializer*, true>::isInvalid() const
Line
Count
Source
207
235k
    bool isInvalid() const { return PtrWithInvalid & 0x01; }
208
72.8M
    bool isUsable() const { return PtrWithInvalid > 0x01; }
clang::ActionResult<clang::Expr*, true>::isUsable() const
Line
Count
Source
208
65.7M
    bool isUsable() const { return PtrWithInvalid > 0x01; }
clang::ActionResult<clang::Stmt*, true>::isUsable() const
Line
Count
Source
208
7.10M
    bool isUsable() const { return PtrWithInvalid > 0x01; }
209
24.8M
    bool isUnset() const { return PtrWithInvalid == 0; }
210
211
760M
    PtrTy get() const {
212
760M
      void *VP = reinterpret_cast<void *>(PtrWithInvalid & ~0x01);
213
760M
      return PtrTraits::getFromVoidPointer(VP);
214
760M
    }
clang::ActionResult<clang::Expr*, true>::get() const
Line
Count
Source
211
741M
    PtrTy get() const {
212
741M
      void *VP = reinterpret_cast<void *>(PtrWithInvalid & ~0x01);
213
741M
      return PtrTraits::getFromVoidPointer(VP);
214
741M
    }
clang::ActionResult<clang::Stmt*, true>::get() const
Line
Count
Source
211
18.0M
    PtrTy get() const {
212
18.0M
      void *VP = reinterpret_cast<void *>(PtrWithInvalid & ~0x01);
213
18.0M
      return PtrTraits::getFromVoidPointer(VP);
214
18.0M
    }
clang::ActionResult<clang::CXXBaseSpecifier*, true>::get() const
Line
Count
Source
211
196k
    PtrTy get() const {
212
196k
      void *VP = reinterpret_cast<void *>(PtrWithInvalid & ~0x01);
213
196k
      return PtrTraits::getFromVoidPointer(VP);
214
196k
    }
clang::ActionResult<clang::CXXCtorInitializer*, true>::get() const
Line
Count
Source
211
235k
    PtrTy get() const {
212
235k
      void *VP = reinterpret_cast<void *>(PtrWithInvalid & ~0x01);
213
235k
      return PtrTraits::getFromVoidPointer(VP);
214
235k
    }
215
216
14.2M
    template <typename T> T *getAs() { return static_cast<T*>(get()); }
clang::StringLiteral* clang::ActionResult<clang::Expr*, true>::getAs<clang::StringLiteral>()
Line
Count
Source
216
14
    template <typename T> T *getAs() { return static_cast<T*>(get()); }
clang::Expr* clang::ActionResult<clang::Expr*, true>::getAs<clang::Expr>()
Line
Count
Source
216
11.7M
    template <typename T> T *getAs() { return static_cast<T*>(get()); }
clang::Stmt* clang::ActionResult<clang::Expr*, true>::getAs<clang::Stmt>()
Line
Count
Source
216
2.06M
    template <typename T> T *getAs() { return static_cast<T*>(get()); }
clang::Expr* clang::ActionResult<clang::Stmt*, true>::getAs<clang::Expr>()
Line
Count
Source
216
476
    template <typename T> T *getAs() { return static_cast<T*>(get()); }
clang::CXXConstructExpr* clang::ActionResult<clang::Expr*, true>::getAs<clang::CXXConstructExpr>()
Line
Count
Source
216
75
    template <typename T> T *getAs() { return static_cast<T*>(get()); }
clang::Stmt* clang::ActionResult<clang::Stmt*, true>::getAs<clang::Stmt>()
Line
Count
Source
216
435k
    template <typename T> T *getAs() { return static_cast<T*>(get()); }
clang::DeclRefExpr* clang::ActionResult<clang::Expr*, true>::getAs<clang::DeclRefExpr>()
Line
Count
Source
216
218
    template <typename T> T *getAs() { return static_cast<T*>(get()); }
217
218
    void set(PtrTy V) {
219
      void *VP = PtrTraits::getAsVoidPointer(V);
220
      PtrWithInvalid = reinterpret_cast<uintptr_t>(VP);
221
      assert((PtrWithInvalid & 0x01) == 0 && "Badly aligned pointer");
222
    }
223
224
24.8M
    const ActionResult &operator=(PtrTy RHS) {
225
24.8M
      void *VP = PtrTraits::getAsVoidPointer(RHS);
226
24.8M
      PtrWithInvalid = reinterpret_cast<uintptr_t>(VP);
227
24.8M
      assert((PtrWithInvalid & 0x01) == 0 && "Badly aligned pointer");
228
24.8M
      return *this;
229
24.8M
    }
clang::ActionResult<clang::Expr*, true>::operator=(clang::Expr*)
Line
Count
Source
224
24.8M
    const ActionResult &operator=(PtrTy RHS) {
225
24.8M
      void *VP = PtrTraits::getAsVoidPointer(RHS);
226
24.8M
      PtrWithInvalid = reinterpret_cast<uintptr_t>(VP);
227
24.8M
      assert((PtrWithInvalid & 0x01) == 0 && "Badly aligned pointer");
228
24.8M
      return *this;
229
24.8M
    }
clang::ActionResult<clang::Stmt*, true>::operator=(clang::Stmt*)
Line
Count
Source
224
24
    const ActionResult &operator=(PtrTy RHS) {
225
24
      void *VP = PtrTraits::getAsVoidPointer(RHS);
226
24
      PtrWithInvalid = reinterpret_cast<uintptr_t>(VP);
227
24
      assert((PtrWithInvalid & 0x01) == 0 && "Badly aligned pointer");
228
24
      return *this;
229
24
    }
230
231
    // For types where we can fit a flag in with the pointer, provide
232
    // conversions to/from pointer type.
233
663k
    static ActionResult getFromOpaquePointer(void *P) {
234
663k
      ActionResult Result;
235
663k
      Result.PtrWithInvalid = (uintptr_t)P;
236
663k
      return Result;
237
663k
    }
238
663k
    void *getAsOpaquePointer() const { return (void*)PtrWithInvalid; }
239
  };
240
241
  /// An opaque type for threading parsed type information through the
242
  /// parser.
243
  using ParsedType = OpaquePtr<QualType>;
244
  using UnionParsedType = UnionOpaquePtr<QualType>;
245
246
  // We can re-use the low bit of expression, statement, base, and
247
  // member-initializer pointers for the "invalid" flag of
248
  // ActionResult.
249
  template<> struct IsResultPtrLowBitFree<Expr*> {
250
    static const bool value = true;
251
  };
252
  template<> struct IsResultPtrLowBitFree<Stmt*> {
253
    static const bool value = true;
254
  };
255
  template<> struct IsResultPtrLowBitFree<CXXBaseSpecifier*> {
256
    static const bool value = true;
257
  };
258
  template<> struct IsResultPtrLowBitFree<CXXCtorInitializer*> {
259
    static const bool value = true;
260
  };
261
262
  using ExprResult = ActionResult<Expr *>;
263
  using StmtResult = ActionResult<Stmt *>;
264
  using TypeResult = ActionResult<ParsedType>;
265
  using BaseResult = ActionResult<CXXBaseSpecifier *>;
266
  using MemInitResult = ActionResult<CXXCtorInitializer *>;
267
268
  using DeclResult = ActionResult<Decl *>;
269
  using ParsedTemplateTy = OpaquePtr<TemplateName>;
270
  using UnionParsedTemplateTy = UnionOpaquePtr<TemplateName>;
271
272
  using MultiExprArg = MutableArrayRef<Expr *>;
273
  using MultiStmtArg = MutableArrayRef<Stmt *>;
274
  using ASTTemplateArgsPtr = MutableArrayRef<ParsedTemplateArgument>;
275
  using MultiTypeArg = MutableArrayRef<ParsedType>;
276
  using MultiTemplateParamsArg = MutableArrayRef<TemplateParameterList *>;
277
278
2.49M
  inline ExprResult ExprError() { return ExprResult(true); }
279
634k
  inline StmtResult StmtError() { return StmtResult(true); }
280
840
  inline TypeResult TypeError() { return TypeResult(true); }
281
282
64
  inline ExprResult ExprError(const StreamingDiagnostic &) {
283
64
    return ExprError();
284
64
  }
285
13
  inline StmtResult StmtError(const StreamingDiagnostic &) {
286
13
    return StmtError();
287
13
  }
288
289
16.7M
  inline ExprResult ExprEmpty() { return ExprResult(false); }
290
81
  inline StmtResult StmtEmpty() { return StmtResult(false); }
291
292
0
  inline Expr *AssertSuccess(ExprResult R) {
293
0
    assert(!R.isInvalid() && "operation was asserted to never fail!");
294
0
    return R.get();
295
0
  }
296
297
0
  inline Stmt *AssertSuccess(StmtResult R) {
298
0
    assert(!R.isInvalid() && "operation was asserted to never fail!");
299
0
    return R.get();
300
0
  }
301
302
} // namespace clang
303
304
#endif // LLVM_CLANG_SEMA_OWNERSHIP_H