6e3b0cc2fb
Summary: This commit renames ClangASTContext to TypeSystemClang to better reflect what this class is actually supposed to do (implement the TypeSystem interface for Clang). It also gets rid of the very confusing situation that we have both a `clang::ASTContext` and a `ClangASTContext` in clang (which sometimes causes Clang people to think I'm fiddling with Clang's ASTContext when I'm actually just doing LLDB work). I also have plans to potentially have multiple clang::ASTContext instances associated with one ClangASTContext so the ASTContext naming will then become even more confusing to people. Reviewers: #lldb, aprantl, shafik, clayborg, labath, JDevlieghere, davide, espindola, jdoerfert, xiaobai Reviewed By: clayborg, labath, xiaobai Subscribers: wuzish, emaste, nemanjai, mgorny, kbarton, MaskRay, arphaman, jfb, usaxena95, jingham, xiaobai, abidh, JDevlieghere, lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D72684
102 lines
3.6 KiB
C++
102 lines
3.6 KiB
C++
//===-- ClangPersistentVariables.cpp ----------------------------*- C++ -*-===//
|
|
//
|
|
// 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 "lldb/Core/Value.h"
|
|
#include "lldb/Symbol/TypeSystemClang.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;
|
|
}
|