7c9ebdd3d6
Summary: lldb-forward.h is convenient in many ways, but having clang-based class forward declarations in there makes it easy to proliferate uses of clang outside of plugins. Removing them makes you much more conscious of when you're using something from clang and marks where we're using things from clang in non-plugins. Differential Revision: https://reviews.llvm.org/D73935
111 lines
3.9 KiB
C++
111 lines
3.9 KiB
C++
//===-- ClangPersistentVariables.cpp --------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "ClangPersistentVariables.h"
|
|
#include "ClangASTImporter.h"
|
|
|
|
#include "Plugins/TypeSystem/Clang/TypeSystemClang.h"
|
|
#include "lldb/Core/Value.h"
|
|
#include "lldb/Target/Target.h"
|
|
#include "lldb/Utility/DataExtractor.h"
|
|
#include "lldb/Utility/Log.h"
|
|
#include "lldb/Utility/StreamString.h"
|
|
|
|
#include "clang/AST/Decl.h"
|
|
|
|
#include "llvm/ADT/StringMap.h"
|
|
|
|
using namespace lldb;
|
|
using namespace lldb_private;
|
|
|
|
ClangPersistentVariables::ClangPersistentVariables()
|
|
: lldb_private::PersistentExpressionState(LLVMCastKind::eKindClang) {}
|
|
|
|
ExpressionVariableSP ClangPersistentVariables::CreatePersistentVariable(
|
|
const lldb::ValueObjectSP &valobj_sp) {
|
|
return AddNewlyConstructedVariable(new ClangExpressionVariable(valobj_sp));
|
|
}
|
|
|
|
ExpressionVariableSP ClangPersistentVariables::CreatePersistentVariable(
|
|
ExecutionContextScope *exe_scope, ConstString name,
|
|
const CompilerType &compiler_type, lldb::ByteOrder byte_order,
|
|
uint32_t addr_byte_size) {
|
|
return AddNewlyConstructedVariable(new ClangExpressionVariable(
|
|
exe_scope, name, compiler_type, byte_order, addr_byte_size));
|
|
}
|
|
|
|
void ClangPersistentVariables::RemovePersistentVariable(
|
|
lldb::ExpressionVariableSP variable) {
|
|
RemoveVariable(variable);
|
|
|
|
// Check if the removed variable was the last one that was created. If yes,
|
|
// reuse the variable id for the next variable.
|
|
|
|
// Nothing to do if we have not assigned a variable id so far.
|
|
if (m_next_persistent_variable_id == 0)
|
|
return;
|
|
|
|
llvm::StringRef name = variable->GetName().GetStringRef();
|
|
// Remove the prefix from the variable that only the indes is left.
|
|
if (!name.consume_front(GetPersistentVariablePrefix(false)))
|
|
return;
|
|
|
|
// Check if the variable contained a variable id.
|
|
uint32_t variable_id;
|
|
if (name.getAsInteger(10, variable_id))
|
|
return;
|
|
// If it's the most recent variable id that was assigned, make sure that this
|
|
// variable id will be used for the next persistent variable.
|
|
if (variable_id == m_next_persistent_variable_id - 1)
|
|
m_next_persistent_variable_id--;
|
|
}
|
|
|
|
llvm::Optional<CompilerType>
|
|
ClangPersistentVariables::GetCompilerTypeFromPersistentDecl(
|
|
ConstString type_name) {
|
|
PersistentDecl p = m_persistent_decls.lookup(type_name.GetCString());
|
|
|
|
if (p.m_decl == nullptr)
|
|
return llvm::None;
|
|
|
|
if (clang::TypeDecl *tdecl = llvm::dyn_cast<clang::TypeDecl>(p.m_decl)) {
|
|
opaque_compiler_type_t t = static_cast<opaque_compiler_type_t>(
|
|
const_cast<clang::Type *>(tdecl->getTypeForDecl()));
|
|
return CompilerType(p.m_context, t);
|
|
}
|
|
return llvm::None;
|
|
}
|
|
|
|
void ClangPersistentVariables::RegisterPersistentDecl(ConstString name,
|
|
clang::NamedDecl *decl,
|
|
TypeSystemClang *ctx) {
|
|
PersistentDecl p = {decl, ctx};
|
|
m_persistent_decls.insert(std::make_pair(name.GetCString(), p));
|
|
|
|
if (clang::EnumDecl *enum_decl = llvm::dyn_cast<clang::EnumDecl>(decl)) {
|
|
for (clang::EnumConstantDecl *enumerator_decl : enum_decl->enumerators()) {
|
|
p = {enumerator_decl, ctx};
|
|
m_persistent_decls.insert(std::make_pair(
|
|
ConstString(enumerator_decl->getNameAsString()).GetCString(), p));
|
|
}
|
|
}
|
|
}
|
|
|
|
clang::NamedDecl *
|
|
ClangPersistentVariables::GetPersistentDecl(ConstString name) {
|
|
return m_persistent_decls.lookup(name.GetCString()).m_decl;
|
|
}
|
|
|
|
std::shared_ptr<ClangASTImporter>
|
|
ClangPersistentVariables::GetClangASTImporter() {
|
|
if (!m_ast_importer_sp) {
|
|
m_ast_importer_sp = std::make_shared<ClangASTImporter>();
|
|
}
|
|
return m_ast_importer_sp;
|
|
}
|