================
@@ -0,0 +1,284 @@
+//===-- 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(lldb::TargetSP target_sp,
+ const llvm::StringRef &name_ref,
+ ConstString unqualified_name) {
+ // List global variable with the same "basename". There can be many matches
+ // from other scopes (namespaces, classes), so we do additional filtering
+ // later.
+ VariableList variable_list;
+ ConstString name(name_ref);
+ target_sp->GetImages().FindGlobalVariables(name, 1, variable_list);
+ if (variable_list.Empty())
+ return nullptr;
+
+ ExecutionContextScope *exe_scope = target_sp->GetProcessSP().get();
+ if (exe_scope == nullptr)
+ exe_scope = target_sp.get();
+ for (const lldb::VariableSP &var_sp : variable_list) {
+ lldb::ValueObjectSP valobj_sp(
+ ValueObjectVariable::Create(exe_scope, var_sp));
+ if (valobj_sp && valobj_sp->GetVariable() &&
+ (valobj_sp->GetVariable()->NameMatches(unqualified_name) ||
+ valobj_sp->GetVariable()->NameMatches(ConstString(name_ref))))
+ 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();
+ if (str_ref_name.size() > 2 && str_ref_name[0] == ':' &&
+ str_ref_name[1] == ':')
+ str_ref_name = str_ref_name.drop_front(2);
----------------
labath wrote:
```suggestion
str_ref_name.consume_front("::");
```
https://github.com/llvm/llvm-project/pull/120971
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