================ @@ -0,0 +1,244 @@ +//===-- DILEval.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 "lldb/ValueObject/DILEval.h" +#include "lldb/Symbol/VariableList.h" +#include "lldb/Target/RegisterContext.h" +#include "lldb/ValueObject/DILAST.h" +#include "lldb/ValueObject/ValueObject.h" +#include "lldb/ValueObject/ValueObjectRegister.h" +#include "lldb/ValueObject/ValueObjectVariable.h" +#include "llvm/Support/FormatAdapters.h" +#include <memory> + +namespace lldb_private::dil { + +static lldb::ValueObjectSP +LookupStaticIdentifier(VariableList &variable_list, + std::shared_ptr<ExecutionContextScope> exe_scope, + llvm::StringRef name_ref, + llvm::StringRef unqualified_name) { + // First look for an exact match to the (possibly) qualified name. + for (const lldb::VariableSP &var_sp : variable_list) { + lldb::ValueObjectSP valobj_sp( + ValueObjectVariable::Create(exe_scope.get(), var_sp)); + if (valobj_sp && valobj_sp->GetVariable() && + (valobj_sp->GetVariable()->NameMatches(ConstString(name_ref)))) + return valobj_sp; + } + + // If the qualified name is the same as the unqualfied name, there's nothing + // more to be done. + if (name_ref == unqualified_name) + return nullptr; + + // We didn't match the qualified name; try to match the unqualified name. + for (const lldb::VariableSP &var_sp : variable_list) { + lldb::ValueObjectSP valobj_sp( + ValueObjectVariable::Create(exe_scope.get(), var_sp)); + if (valobj_sp && valobj_sp->GetVariable() && + (valobj_sp->GetVariable()->NameMatches(ConstString(unqualified_name)))) + return valobj_sp; + } + + return nullptr; +} + +static lldb::VariableSP DILFindVariable(ConstString name, + VariableList *variable_list) { + lldb::VariableSP exact_match; + std::vector<lldb::VariableSP> possible_matches; + + typedef std::vector<lldb::VariableSP> collection; + typedef collection::iterator iterator; + + iterator pos, end = variable_list->end(); + for (pos = variable_list->begin(); pos != end; ++pos) { + llvm::StringRef str_ref_name = pos->get()->GetName().GetStringRef(); + // Check for global vars, which might start with '::'. + str_ref_name.consume_front("::"); + + if (str_ref_name == name.GetStringRef()) + possible_matches.push_back(*pos); + else if (pos->get()->NameMatches(name)) + possible_matches.push_back(*pos); + } + + // Look for exact matches (favors local vars over global vars) + auto exact_match_it = + llvm::find_if(possible_matches, [&](lldb::VariableSP var_sp) { + return var_sp->GetName() == name; + }); + + if (exact_match_it != llvm::adl_end(possible_matches)) + exact_match = *exact_match_it; + + if (!exact_match) + // Look for a global var exact match. + for (auto var_sp : possible_matches) { + llvm::StringRef str_ref_name = var_sp->GetName().GetStringRef(); + str_ref_name.consume_front("::"); + if (str_ref_name == name.GetStringRef()) { + exact_match = var_sp; + break; + } + } + + if (!exact_match && possible_matches.size() == 1) + exact_match = possible_matches[0]; + + return exact_match; +} + +std::unique_ptr<IdentifierInfo> +LookupIdentifier(llvm::StringRef name_ref, + std::shared_ptr<ExecutionContextScope> ctx_scope, + lldb::TargetSP target_sp, lldb::DynamicValueType use_dynamic, + CompilerType *scope_ptr) { + // Support $rax as a special syntax for accessing registers. + // Will return an invalid value in case the requested register doesn't exist. + if (name_ref.consume_front("$")) { + lldb::ValueObjectSP value_sp; + Process *process = ctx_scope->CalculateProcess().get(); + if (!target_sp || !process) + return nullptr; ---------------- labath wrote:
I think these aren't used now. https://github.com/llvm/llvm-project/pull/120971 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
