0e4c482124
My apologies for the large patch. With the exception of ConstString.h itself it was entirely produced by sed. ConstString has exactly one const char * data member, so passing a ConstString by reference is not any more efficient than copying it by value. In both cases a single pointer is passed. But passing it by value makes it harder to accidentally return the address of a local object. (This fixes rdar://problem/48640859 for the Apple folks) Differential Revision: https://reviews.llvm.org/D59030 llvm-svn: 355553
79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
//===-- ClangPersistentVariables.cpp ----------------------------*- 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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#include "ClangPersistentVariables.h"
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#include "lldb/Core/Value.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Utility/DataExtractor.h"
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#include "lldb/Utility/Log.h"
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#include "lldb/Utility/StreamString.h"
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#include "clang/AST/Decl.h"
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#include "llvm/ADT/StringMap.h"
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using namespace lldb;
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using namespace lldb_private;
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ClangPersistentVariables::ClangPersistentVariables()
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: lldb_private::PersistentExpressionState(LLVMCastKind::eKindClang),
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m_next_persistent_variable_id(0) {}
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ExpressionVariableSP ClangPersistentVariables::CreatePersistentVariable(
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const lldb::ValueObjectSP &valobj_sp) {
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return AddNewlyConstructedVariable(new ClangExpressionVariable(valobj_sp));
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}
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ExpressionVariableSP ClangPersistentVariables::CreatePersistentVariable(
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ExecutionContextScope *exe_scope, ConstString name,
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const CompilerType &compiler_type, lldb::ByteOrder byte_order,
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uint32_t addr_byte_size) {
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return AddNewlyConstructedVariable(new ClangExpressionVariable(
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exe_scope, name, compiler_type, byte_order, addr_byte_size));
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}
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void ClangPersistentVariables::RemovePersistentVariable(
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lldb::ExpressionVariableSP variable) {
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RemoveVariable(variable);
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const char *name = variable->GetName().AsCString();
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if (*name != '$')
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return;
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name++;
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if (strtoul(name, NULL, 0) == m_next_persistent_variable_id - 1)
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m_next_persistent_variable_id--;
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}
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void ClangPersistentVariables::RegisterPersistentDecl(ConstString name,
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clang::NamedDecl *decl) {
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m_persistent_decls.insert(
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std::pair<const char *, clang::NamedDecl *>(name.GetCString(), decl));
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if (clang::EnumDecl *enum_decl = llvm::dyn_cast<clang::EnumDecl>(decl)) {
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for (clang::EnumConstantDecl *enumerator_decl : enum_decl->enumerators()) {
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m_persistent_decls.insert(std::pair<const char *, clang::NamedDecl *>(
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ConstString(enumerator_decl->getNameAsString()).GetCString(),
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enumerator_decl));
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}
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}
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}
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clang::NamedDecl *
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ClangPersistentVariables::GetPersistentDecl(ConstString name) {
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PersistentDeclMap::const_iterator i =
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m_persistent_decls.find(name.GetCString());
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if (i == m_persistent_decls.end())
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return NULL;
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else
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return i->second;
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}
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