6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
124 lines
4.2 KiB
C++
124 lines
4.2 KiB
C++
//===-- CompilerDeclContext.h -----------------------------------*- 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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#ifndef LLDB_SYMBOL_COMPILERDECLCONTEXT_H
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#define LLDB_SYMBOL_COMPILERDECLCONTEXT_H
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#include <vector>
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#include "lldb/Symbol/Type.h"
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#include "lldb/Utility/ConstString.h"
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#include "lldb/lldb-private.h"
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namespace lldb_private {
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/// Represents a generic declaration context in a program. A declaration context
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/// is data structure that contains declarations (e.g. namespaces).
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///
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/// This class serves as an abstraction for a declaration context inside one of
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/// the TypeSystems implemented by the language plugins. It does not have any
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/// actual logic in it but only stores an opaque pointer and a pointer to the
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/// TypeSystem that gives meaning to this opaque pointer. All methods of this
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/// class should call their respective method in the TypeSystem interface and
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/// pass the opaque pointer along.
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///
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/// \see lldb_private::TypeSystem
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class CompilerDeclContext {
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public:
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/// Constructs an invalid CompilerDeclContext.
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CompilerDeclContext() = default;
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/// Constructs a CompilerDeclContext with the given opaque decl context
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/// and its respective TypeSystem instance.
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///
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/// This constructor should only be called from the respective TypeSystem
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/// implementation.
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///
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/// \see lldb_private::TypeSystemClang::CreateDeclContext(clang::DeclContext*)
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CompilerDeclContext(TypeSystem *type_system, void *decl_ctx)
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: m_type_system(type_system), m_opaque_decl_ctx(decl_ctx) {}
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// Tests
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explicit operator bool() const { return IsValid(); }
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bool operator<(const CompilerDeclContext &rhs) const {
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if (m_type_system == rhs.m_type_system)
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return m_opaque_decl_ctx < rhs.m_opaque_decl_ctx;
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return m_type_system < rhs.m_type_system;
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}
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bool IsValid() const {
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return m_type_system != nullptr && m_opaque_decl_ctx != nullptr;
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}
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/// Populate a valid compiler context from the current decl context.
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///
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/// \returns A valid vector of CompilerContext entries that describes
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/// this declaration context. The first entry in the vector is the parent of
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/// the subsequent entry, so the topmost entry is the global namespace.
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std::vector<lldb_private::CompilerContext> GetCompilerContext() const;
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std::vector<CompilerDecl> FindDeclByName(ConstString name,
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const bool ignore_using_decls);
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/// Checks if this decl context represents a method of a class.
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///
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/// \return
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/// Returns true if this is a decl context that represents a method
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/// in a struct, union or class.
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bool IsClassMethod();
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/// Determines the original language of the decl context.
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lldb::LanguageType GetLanguage();
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/// Check if the given other decl context is contained in the lookup
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/// of this decl context (for example because the other context is a nested
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/// inline namespace).
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///
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/// @param[in] other
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/// The other decl context for which we should check if it is contained
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/// in the lookoup of this context.
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///
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/// @return
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/// Returns true iff the other decl context is contained in the lookup
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/// of this decl context.
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bool IsContainedInLookup(CompilerDeclContext other) const;
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// Accessors
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TypeSystem *GetTypeSystem() const { return m_type_system; }
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void *GetOpaqueDeclContext() const { return m_opaque_decl_ctx; }
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void SetDeclContext(TypeSystem *type_system, void *decl_ctx) {
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m_type_system = type_system;
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m_opaque_decl_ctx = decl_ctx;
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}
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void Clear() {
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m_type_system = nullptr;
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m_opaque_decl_ctx = nullptr;
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}
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ConstString GetName() const;
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ConstString GetScopeQualifiedName() const;
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private:
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TypeSystem *m_type_system = nullptr;
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void *m_opaque_decl_ctx = nullptr;
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};
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bool operator==(const CompilerDeclContext &lhs, const CompilerDeclContext &rhs);
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bool operator!=(const CompilerDeclContext &lhs, const CompilerDeclContext &rhs);
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} // namespace lldb_private
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#endif // LLDB_SYMBOL_COMPILERDECLCONTEXT_H
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