Index: lldb/include/lldb/Utility/CompletionRequest.h =================================================================== --- lldb/include/lldb/Utility/CompletionRequest.h +++ lldb/include/lldb/Utility/CompletionRequest.h @@ -116,8 +116,8 @@ /// /// \see AddCompletion void AddCompletions(const StringList &completions) { - for (std::size_t i = 0; i < completions.GetSize(); ++i) - AddCompletion(completions.GetStringAtIndex(i)); + for (const std::string &completion : completions) + AddCompletion(completion); } /// Adds multiple possible completion strings alongside their descriptions. Index: lldb/include/lldb/Utility/StringList.h =================================================================== --- lldb/include/lldb/Utility/StringList.h +++ lldb/include/lldb/Utility/StringList.h @@ -23,6 +23,8 @@ namespace lldb_private { class StringList { + typedef std::vector StorageType; + public: StringList(); @@ -52,6 +54,14 @@ size_t GetMaxStringLength() const; + typedef StorageType::iterator iterator; + typedef StorageType::const_iterator const_iterator; + + iterator begin() { return m_strings.begin(); } + iterator end() { return m_strings.end(); } + const_iterator begin() const { return m_strings.begin(); } + const_iterator end() const { return m_strings.end(); } + std::string &operator[](size_t idx) { // No bounds checking, verify "idx" is good prior to calling this function return m_strings[idx]; Index: lldb/source/Breakpoint/WatchpointOptions.cpp =================================================================== --- lldb/source/Breakpoint/WatchpointOptions.cpp +++ lldb/source/Breakpoint/WatchpointOptions.cpp @@ -170,9 +170,8 @@ s->IndentMore(); if (data && data->user_source.GetSize() > 0) { - const size_t num_strings = data->user_source.GetSize(); - for (size_t i = 0; i < num_strings; ++i) { - s->Indent(data->user_source.GetStringAtIndex(i)); + for (const std::string &line : data->user_source) { + s->Indent(line); s->EOL(); } } else { Index: lldb/source/Commands/CommandObjectApropos.cpp =================================================================== --- lldb/source/Commands/CommandObjectApropos.cpp +++ lldb/source/Commands/CommandObjectApropos.cpp @@ -65,10 +65,8 @@ "The following commands may relate to '%s':\n", args[0].c_str()); size_t max_len = 0; - for (size_t i = 0; i < commands_found.GetSize(); ++i) { - size_t len = strlen(commands_found.GetStringAtIndex(i)); - if (len > max_len) - max_len = len; + for (const std::string &command : commands_found) { + max_len = std::max(max_len, command.size()); } for (size_t i = 0; i < commands_found.GetSize(); ++i) Index: lldb/source/Commands/CommandObjectCommands.cpp =================================================================== --- lldb/source/Commands/CommandObjectCommands.cpp +++ lldb/source/Commands/CommandObjectCommands.cpp @@ -966,11 +966,9 @@ if (m_regex_cmd_up) { StringList lines; if (lines.SplitIntoLines(data)) { - const size_t num_lines = lines.GetSize(); bool check_only = false; - for (size_t i = 0; i < num_lines; ++i) { - llvm::StringRef bytes_strref(lines[i]); - Status error = AppendRegexSubstitution(bytes_strref, check_only); + for (const std::string &line : lines) { + Status error = AppendRegexSubstitution(line, check_only); if (error.Fail()) { if (!GetDebugger().GetCommandInterpreter().GetBatchCommandMode()) { StreamSP out_stream = GetDebugger().GetAsyncOutputStream(); Index: lldb/source/Commands/CommandObjectMultiword.cpp =================================================================== --- lldb/source/Commands/CommandObjectMultiword.cpp +++ lldb/source/Commands/CommandObjectMultiword.cpp @@ -136,9 +136,9 @@ if (num_subcmd_matches > 0) { error_msg.append(" Possible completions:"); - for (size_t i = 0; i < matches.GetSize(); i++) { + for (const std::string &match : matches) { error_msg.append("\n\t"); - error_msg.append(matches.GetStringAtIndex(i)); + error_msg.append(match); } } error_msg.append("\n"); Index: lldb/source/Commands/CommandObjectType.cpp =================================================================== --- lldb/source/Commands/CommandObjectType.cpp +++ lldb/source/Commands/CommandObjectType.cpp @@ -195,9 +195,7 @@ Status error; - for (size_t i = 0; i < options->m_target_types.GetSize(); i++) { - const char *type_name = - options->m_target_types.GetStringAtIndex(i); + for (const std::string &type_name : options->m_target_types) { CommandObjectTypeSummaryAdd::AddSummary( ConstString(type_name), script_format, (options->m_regex @@ -437,9 +435,7 @@ Status error; - for (size_t i = 0; i < options->m_target_types.GetSize(); i++) { - const char *type_name = - options->m_target_types.GetStringAtIndex(i); + for (const std::string &type_name : options->m_target_types) { ConstString const_type_name(type_name); if (const_type_name) { if (!CommandObjectTypeSynthAdd::AddSynth( Index: lldb/source/Utility/Args.cpp =================================================================== --- lldb/source/Utility/Args.cpp +++ lldb/source/Utility/Args.cpp @@ -172,8 +172,8 @@ Args::Args(const Args &rhs) { *this = rhs; } Args::Args(const StringList &list) : Args() { - for (size_t i = 0; i < list.GetSize(); ++i) - AppendArgument(list[i]); + for (const std::string &arg : list) + AppendArgument(arg); } Args &Args::operator=(const Args &rhs) { Index: lldb/source/Utility/StringList.cpp =================================================================== --- lldb/source/Utility/StringList.cpp +++ lldb/source/Utility/StringList.cpp @@ -61,10 +61,7 @@ } void StringList::AppendList(StringList strings) { - size_t len = strings.GetSize(); - - for (size_t i = 0; i < len; ++i) - m_strings.push_back(strings.GetStringAtIndex(i)); + m_strings.insert(m_strings.end(), strings.begin(), strings.end()); } size_t StringList::GetSize() const { return m_strings.size(); } Index: lldb/unittests/Editline/EditlineTest.cpp =================================================================== --- lldb/unittests/Editline/EditlineTest.cpp +++ lldb/unittests/Editline/EditlineTest.cpp @@ -196,8 +196,8 @@ int start_block_count = 0; int brace_balance = 0; - for (size_t i = 0; i < lines.GetSize(); ++i) { - for (auto ch : lines[i]) { + for (const std::string &line : lines) { + for (auto ch : line) { if (ch == '{') { ++start_block_count; ++brace_balance; @@ -312,8 +312,8 @@ // Without any auto indentation support, our output should directly match our // input. std::vector reported_lines; - for (size_t i = 0; i < el_reported_lines.GetSize(); ++i) - reported_lines.push_back(el_reported_lines[i]); + for (const std::string &line : el_reported_lines) + reported_lines.push_back(line); EXPECT_THAT(reported_lines, testing::ContainerEq(input_lines)); } Index: lldb/unittests/Utility/StringListTest.cpp =================================================================== --- lldb/unittests/Utility/StringListTest.cpp +++ lldb/unittests/Utility/StringListTest.cpp @@ -504,3 +504,23 @@ StringList s; EXPECT_EQ(0U, s.GetMaxStringLength()); } + +TEST(StringListTest, ForRangeEmpty) { + StringList s; + for (const std::string &e : s) + FAIL() << "Shouldn't have hit an element in for range"; +} + +TEST(StringListTest, ForRangeSingle) { + StringList s; + s.AppendString("a"); + s.AppendString("b"); + s.AppendString("c"); + std::vector recorded; + for (const std::string &e : s) + recorded.push_back(e); + EXPECT_EQ(3, recorded.size()); + EXPECT_EQ("a", recorded.at(0)); + EXPECT_EQ("b", recorded.at(1)); + EXPECT_EQ("c", recorded.at(2)); +}