| //===-- CommandObjectExpression.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 "llvm/ADT/StringRef.h" |
| |
| #include "CommandObjectExpression.h" |
| #include "lldb/Core/Debugger.h" |
| #include "lldb/Expression/REPL.h" |
| #include "lldb/Expression/UserExpression.h" |
| #include "lldb/Host/OptionParser.h" |
| #include "lldb/Interpreter/CommandInterpreter.h" |
| #include "lldb/Interpreter/CommandReturnObject.h" |
| #include "lldb/Interpreter/OptionArgParser.h" |
| #include "lldb/Target/Language.h" |
| #include "lldb/Target/Process.h" |
| #include "lldb/Target/StackFrame.h" |
| #include "lldb/Target/Target.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| CommandObjectExpression::CommandOptions::CommandOptions() : OptionGroup() {} |
| |
| CommandObjectExpression::CommandOptions::~CommandOptions() = default; |
| |
| static constexpr OptionEnumValueElement g_description_verbosity_type[] = { |
| { |
| eLanguageRuntimeDescriptionDisplayVerbosityCompact, |
| "compact", |
| "Only show the description string", |
| }, |
| { |
| eLanguageRuntimeDescriptionDisplayVerbosityFull, |
| "full", |
| "Show the full output, including persistent variable's name and type", |
| }, |
| }; |
| |
| static constexpr OptionEnumValues DescriptionVerbosityTypes() { |
| return OptionEnumValues(g_description_verbosity_type); |
| } |
| |
| #define LLDB_OPTIONS_expression |
| #include "CommandOptions.inc" |
| |
| Status CommandObjectExpression::CommandOptions::SetOptionValue( |
| uint32_t option_idx, llvm::StringRef option_arg, |
| ExecutionContext *execution_context) { |
| Status error; |
| |
| const int short_option = GetDefinitions()[option_idx].short_option; |
| |
| switch (short_option) { |
| case 'l': |
| language = Language::GetLanguageTypeFromString(option_arg); |
| if (language == eLanguageTypeUnknown) |
| error.SetErrorStringWithFormat( |
| "unknown language type: '%s' for expression", |
| option_arg.str().c_str()); |
| break; |
| |
| case 'a': { |
| bool success; |
| bool result; |
| result = OptionArgParser::ToBoolean(option_arg, true, &success); |
| if (!success) |
| error.SetErrorStringWithFormat( |
| "invalid all-threads value setting: \"%s\"", |
| option_arg.str().c_str()); |
| else |
| try_all_threads = result; |
| } break; |
| |
| case 'i': { |
| bool success; |
| bool tmp_value = OptionArgParser::ToBoolean(option_arg, true, &success); |
| if (success) |
| ignore_breakpoints = tmp_value; |
| else |
| error.SetErrorStringWithFormat( |
| "could not convert \"%s\" to a boolean value.", |
| option_arg.str().c_str()); |
| break; |
| } |
| |
| case 'j': { |
| bool success; |
| bool tmp_value = OptionArgParser::ToBoolean(option_arg, true, &success); |
| if (success) |
| allow_jit = tmp_value; |
| else |
| error.SetErrorStringWithFormat( |
| "could not convert \"%s\" to a boolean value.", |
| option_arg.str().c_str()); |
| break; |
| } |
| |
| case 't': |
| if (option_arg.getAsInteger(0, timeout)) { |
| timeout = 0; |
| error.SetErrorStringWithFormat("invalid timeout setting \"%s\"", |
| option_arg.str().c_str()); |
| } |
| break; |
| |
| case 'u': { |
| bool success; |
| bool tmp_value = OptionArgParser::ToBoolean(option_arg, true, &success); |
| if (success) |
| unwind_on_error = tmp_value; |
| else |
| error.SetErrorStringWithFormat( |
| "could not convert \"%s\" to a boolean value.", |
| option_arg.str().c_str()); |
| break; |
| } |
| |
| case 'v': |
| if (option_arg.empty()) { |
| m_verbosity = eLanguageRuntimeDescriptionDisplayVerbosityFull; |
| break; |
| } |
| m_verbosity = (LanguageRuntimeDescriptionDisplayVerbosity) |
| OptionArgParser::ToOptionEnum( |
| option_arg, GetDefinitions()[option_idx].enum_values, 0, error); |
| if (!error.Success()) |
| error.SetErrorStringWithFormat( |
| "unrecognized value for description-verbosity '%s'", |
| option_arg.str().c_str()); |
| break; |
| |
| case 'g': |
| debug = true; |
| unwind_on_error = false; |
| ignore_breakpoints = false; |
| break; |
| |
| case 'p': |
| top_level = true; |
| break; |
| |
| case 'X': { |
| bool success; |
| bool tmp_value = OptionArgParser::ToBoolean(option_arg, true, &success); |
| if (success) |
| auto_apply_fixits = tmp_value ? eLazyBoolYes : eLazyBoolNo; |
| else |
| error.SetErrorStringWithFormat( |
| "could not convert \"%s\" to a boolean value.", |
| option_arg.str().c_str()); |
| break; |
| } |
| |
| default: |
| llvm_unreachable("Unimplemented option"); |
| } |
| |
| return error; |
| } |
| |
| void CommandObjectExpression::CommandOptions::OptionParsingStarting( |
| ExecutionContext *execution_context) { |
| auto process_sp = |
| execution_context ? execution_context->GetProcessSP() : ProcessSP(); |
| if (process_sp) { |
| ignore_breakpoints = process_sp->GetIgnoreBreakpointsInExpressions(); |
| unwind_on_error = process_sp->GetUnwindOnErrorInExpressions(); |
| } else { |
| ignore_breakpoints = true; |
| unwind_on_error = true; |
| } |
| |
| show_summary = true; |
| try_all_threads = true; |
| timeout = 0; |
| debug = false; |
| language = eLanguageTypeUnknown; |
| m_verbosity = eLanguageRuntimeDescriptionDisplayVerbosityCompact; |
| auto_apply_fixits = eLazyBoolCalculate; |
| top_level = false; |
| allow_jit = true; |
| } |
| |
| llvm::ArrayRef<OptionDefinition> |
| CommandObjectExpression::CommandOptions::GetDefinitions() { |
| return llvm::makeArrayRef(g_expression_options); |
| } |
| |
| CommandObjectExpression::CommandObjectExpression( |
| CommandInterpreter &interpreter) |
| : CommandObjectRaw(interpreter, "expression", |
| "Evaluate an expression on the current " |
| "thread. Displays any returned value " |
| "with LLDB's default formatting.", |
| "", |
| eCommandProcessMustBePaused | eCommandTryTargetAPILock), |
| IOHandlerDelegate(IOHandlerDelegate::Completion::Expression), |
| m_option_group(), m_format_options(eFormatDefault), |
| m_repl_option(LLDB_OPT_SET_1, false, "repl", 'r', "Drop into REPL", false, |
| true), |
| m_command_options(), m_expr_line_count(0), m_expr_lines() { |
| SetHelpLong( |
| R"( |
| Single and multi-line expressions: |
| |
| )" |
| " The expression provided on the command line must be a complete expression \ |
| with no newlines. To evaluate a multi-line expression, \ |
| hit a return after an empty expression, and lldb will enter the multi-line expression editor. \ |
| Hit return on an empty line to end the multi-line expression." |
| |
| R"( |
| |
| Timeouts: |
| |
| )" |
| " If the expression can be evaluated statically (without running code) then it will be. \ |
| Otherwise, by default the expression will run on the current thread with a short timeout: \ |
| currently .25 seconds. If it doesn't return in that time, the evaluation will be interrupted \ |
| and resumed with all threads running. You can use the -a option to disable retrying on all \ |
| threads. You can use the -t option to set a shorter timeout." |
| R"( |
| |
| User defined variables: |
| |
| )" |
| " You can define your own variables for convenience or to be used in subsequent expressions. \ |
| You define them the same way you would define variables in C. If the first character of \ |
| your user defined variable is a $, then the variable's value will be available in future \ |
| expressions, otherwise it will just be available in the current expression." |
| R"( |
| |
| Continuing evaluation after a breakpoint: |
| |
| )" |
| " If the \"-i false\" option is used, and execution is interrupted by a breakpoint hit, once \ |
| you are done with your investigation, you can either remove the expression execution frames \ |
| from the stack with \"thread return -x\" or if you are still interested in the expression result \ |
| you can issue the \"continue\" command and the expression evaluation will complete and the \ |
| expression result will be available using the \"thread.completed-expression\" key in the thread \ |
| format." |
| |
| R"( |
| |
| Examples: |
| |
| expr my_struct->a = my_array[3] |
| expr -f bin -- (index * 8) + 5 |
| expr unsigned int $foo = 5 |
| expr char c[] = \"foo\"; c[0])"); |
| |
| CommandArgumentEntry arg; |
| CommandArgumentData expression_arg; |
| |
| // Define the first (and only) variant of this arg. |
| expression_arg.arg_type = eArgTypeExpression; |
| expression_arg.arg_repetition = eArgRepeatPlain; |
| |
| // There is only one variant this argument could be; put it into the argument |
| // entry. |
| arg.push_back(expression_arg); |
| |
| // Push the data for the first argument into the m_arguments vector. |
| m_arguments.push_back(arg); |
| |
| // Add the "--format" and "--gdb-format" |
| m_option_group.Append(&m_format_options, |
| OptionGroupFormat::OPTION_GROUP_FORMAT | |
| OptionGroupFormat::OPTION_GROUP_GDB_FMT, |
| LLDB_OPT_SET_1); |
| m_option_group.Append(&m_command_options); |
| m_option_group.Append(&m_varobj_options, LLDB_OPT_SET_ALL, |
| LLDB_OPT_SET_1 | LLDB_OPT_SET_2); |
| m_option_group.Append(&m_repl_option, LLDB_OPT_SET_ALL, LLDB_OPT_SET_3); |
| m_option_group.Finalize(); |
| } |
| |
| CommandObjectExpression::~CommandObjectExpression() = default; |
| |
| Options *CommandObjectExpression::GetOptions() { return &m_option_group; } |
| |
| void CommandObjectExpression::HandleCompletion(CompletionRequest &request) { |
| EvaluateExpressionOptions options; |
| options.SetCoerceToId(m_varobj_options.use_objc); |
| options.SetLanguage(m_command_options.language); |
| options.SetExecutionPolicy(lldb_private::eExecutionPolicyNever); |
| options.SetAutoApplyFixIts(false); |
| options.SetGenerateDebugInfo(false); |
| |
| // We need a valid execution context with a frame pointer for this |
| // completion, so if we don't have one we should try to make a valid |
| // execution context. |
| if (m_interpreter.GetExecutionContext().GetFramePtr() == nullptr) |
| m_interpreter.UpdateExecutionContext(nullptr); |
| |
| // This didn't work, so let's get out before we start doing things that |
| // expect a valid frame pointer. |
| if (m_interpreter.GetExecutionContext().GetFramePtr() == nullptr) |
| return; |
| |
| ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); |
| Target *exe_target = exe_ctx.GetTargetPtr(); |
| Target &target = exe_target ? *exe_target : GetDummyTarget(); |
| |
| unsigned cursor_pos = request.GetRawCursorPos(); |
| // Get the full user input including the suffix. The suffix is necessary |
| // as OptionsWithRaw will use it to detect if the cursor is cursor is in the |
| // argument part of in the raw input part of the arguments. If we cut of |
| // of the suffix then "expr -arg[cursor] --" would interpret the "-arg" as |
| // the raw input (as the "--" is hidden in the suffix). |
| llvm::StringRef code = request.GetRawLineWithUnusedSuffix(); |
| |
| const std::size_t original_code_size = code.size(); |
| |
| // Remove the first token which is 'expr' or some alias/abbreviation of that. |
| code = llvm::getToken(code).second.ltrim(); |
| OptionsWithRaw args(code); |
| code = args.GetRawPart(); |
| |
| // The position where the expression starts in the command line. |
| assert(original_code_size >= code.size()); |
| std::size_t raw_start = original_code_size - code.size(); |
| |
| // Check if the cursor is actually in the expression string, and if not, we |
| // exit. |
| // FIXME: We should complete the options here. |
| if (cursor_pos < raw_start) |
| return; |
| |
| // Make the cursor_pos again relative to the start of the code string. |
| assert(cursor_pos >= raw_start); |
| cursor_pos -= raw_start; |
| |
| auto language = exe_ctx.GetFrameRef().GetLanguage(); |
| |
| Status error; |
| lldb::UserExpressionSP expr(target.GetUserExpressionForLanguage( |
| code, llvm::StringRef(), language, UserExpression::eResultTypeAny, |
| options, nullptr, error)); |
| if (error.Fail()) |
| return; |
| |
| expr->Complete(exe_ctx, request, cursor_pos); |
| } |
| |
| static lldb_private::Status |
| CanBeUsedForElementCountPrinting(ValueObject &valobj) { |
| CompilerType type(valobj.GetCompilerType()); |
| CompilerType pointee; |
| if (!type.IsPointerType(&pointee)) |
| return Status("as it does not refer to a pointer"); |
| if (pointee.IsVoidType()) |
| return Status("as it refers to a pointer to void"); |
| return Status(); |
| } |
| |
| EvaluateExpressionOptions |
| CommandObjectExpression::GetEvalOptions(const Target &target) { |
| EvaluateExpressionOptions options; |
| options.SetCoerceToId(m_varobj_options.use_objc); |
| options.SetUnwindOnError(m_command_options.unwind_on_error); |
| options.SetIgnoreBreakpoints(m_command_options.ignore_breakpoints); |
| options.SetKeepInMemory(true); |
| options.SetUseDynamic(m_varobj_options.use_dynamic); |
| options.SetTryAllThreads(m_command_options.try_all_threads); |
| options.SetDebug(m_command_options.debug); |
| options.SetLanguage(m_command_options.language); |
| options.SetExecutionPolicy( |
| m_command_options.allow_jit |
| ? EvaluateExpressionOptions::default_execution_policy |
| : lldb_private::eExecutionPolicyNever); |
| |
| bool auto_apply_fixits; |
| if (m_command_options.auto_apply_fixits == eLazyBoolCalculate) |
| auto_apply_fixits = target.GetEnableAutoApplyFixIts(); |
| else |
| auto_apply_fixits = m_command_options.auto_apply_fixits == eLazyBoolYes; |
| |
| options.SetAutoApplyFixIts(auto_apply_fixits); |
| options.SetRetriesWithFixIts(target.GetNumberOfRetriesWithFixits()); |
| |
| if (m_command_options.top_level) |
| options.SetExecutionPolicy(eExecutionPolicyTopLevel); |
| |
| // If there is any chance we are going to stop and want to see what went |
| // wrong with our expression, we should generate debug info |
| if (!m_command_options.ignore_breakpoints || |
| !m_command_options.unwind_on_error) |
| options.SetGenerateDebugInfo(true); |
| |
| if (m_command_options.timeout > 0) |
| options.SetTimeout(std::chrono::microseconds(m_command_options.timeout)); |
| else |
| options.SetTimeout(llvm::None); |
| return options; |
| } |
| |
| bool CommandObjectExpression::EvaluateExpression(llvm::StringRef expr, |
| Stream &output_stream, |
| Stream &error_stream, |
| CommandReturnObject &result) { |
| // Don't use m_exe_ctx as this might be called asynchronously after the |
| // command object DoExecute has finished when doing multi-line expression |
| // that use an input reader... |
| ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); |
| Target *exe_target = exe_ctx.GetTargetPtr(); |
| Target &target = exe_target ? *exe_target : GetDummyTarget(); |
| |
| lldb::ValueObjectSP result_valobj_sp; |
| StackFrame *frame = exe_ctx.GetFramePtr(); |
| |
| const EvaluateExpressionOptions options = GetEvalOptions(target); |
| ExpressionResults success = target.EvaluateExpression( |
| expr, frame, result_valobj_sp, options, &m_fixed_expression); |
| |
| // We only tell you about the FixIt if we applied it. The compiler errors |
| // will suggest the FixIt if it parsed. |
| if (!m_fixed_expression.empty() && target.GetEnableNotifyAboutFixIts()) { |
| if (success == eExpressionCompleted) |
| error_stream.Printf(" Fix-it applied, fixed expression was: \n %s\n", |
| m_fixed_expression.c_str()); |
| } |
| |
| if (result_valobj_sp) { |
| Format format = m_format_options.GetFormat(); |
| |
| if (result_valobj_sp->GetError().Success()) { |
| if (format != eFormatVoid) { |
| if (format != eFormatDefault) |
| result_valobj_sp->SetFormat(format); |
| |
| if (m_varobj_options.elem_count > 0) { |
| Status error(CanBeUsedForElementCountPrinting(*result_valobj_sp)); |
| if (error.Fail()) { |
| result.AppendErrorWithFormat( |
| "expression cannot be used with --element-count %s\n", |
| error.AsCString("")); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| } |
| |
| DumpValueObjectOptions options(m_varobj_options.GetAsDumpOptions( |
| m_command_options.m_verbosity, format)); |
| options.SetVariableFormatDisplayLanguage( |
| result_valobj_sp->GetPreferredDisplayLanguage()); |
| |
| result_valobj_sp->Dump(output_stream, options); |
| |
| result.SetStatus(eReturnStatusSuccessFinishResult); |
| } |
| } else { |
| if (result_valobj_sp->GetError().GetError() == |
| UserExpression::kNoResult) { |
| if (format != eFormatVoid && GetDebugger().GetNotifyVoid()) { |
| error_stream.PutCString("(void)\n"); |
| } |
| |
| result.SetStatus(eReturnStatusSuccessFinishResult); |
| } else { |
| const char *error_cstr = result_valobj_sp->GetError().AsCString(); |
| if (error_cstr && error_cstr[0]) { |
| const size_t error_cstr_len = strlen(error_cstr); |
| const bool ends_with_newline = error_cstr[error_cstr_len - 1] == '\n'; |
| if (strstr(error_cstr, "error:") != error_cstr) |
| error_stream.PutCString("error: "); |
| error_stream.Write(error_cstr, error_cstr_len); |
| if (!ends_with_newline) |
| error_stream.EOL(); |
| } else { |
| error_stream.PutCString("error: unknown error\n"); |
| } |
| |
| result.SetStatus(eReturnStatusFailed); |
| } |
| } |
| } |
| |
| return (success != eExpressionSetupError && |
| success != eExpressionParseError); |
| } |
| |
| void CommandObjectExpression::IOHandlerInputComplete(IOHandler &io_handler, |
| std::string &line) { |
| io_handler.SetIsDone(true); |
| // StreamSP output_stream = |
| // io_handler.GetDebugger().GetAsyncOutputStream(); |
| // StreamSP error_stream = io_handler.GetDebugger().GetAsyncErrorStream(); |
| StreamFileSP output_sp = io_handler.GetOutputStreamFileSP(); |
| StreamFileSP error_sp = io_handler.GetErrorStreamFileSP(); |
| |
| CommandReturnObject return_obj( |
| GetCommandInterpreter().GetDebugger().GetUseColor()); |
| EvaluateExpression(line.c_str(), *output_sp, *error_sp, return_obj); |
| if (output_sp) |
| output_sp->Flush(); |
| if (error_sp) |
| error_sp->Flush(); |
| } |
| |
| bool CommandObjectExpression::IOHandlerIsInputComplete(IOHandler &io_handler, |
| StringList &lines) { |
| // An empty lines is used to indicate the end of input |
| const size_t num_lines = lines.GetSize(); |
| if (num_lines > 0 && lines[num_lines - 1].empty()) { |
| // Remove the last empty line from "lines" so it doesn't appear in our |
| // resulting input and return true to indicate we are done getting lines |
| lines.PopBack(); |
| return true; |
| } |
| return false; |
| } |
| |
| void CommandObjectExpression::GetMultilineExpression() { |
| m_expr_lines.clear(); |
| m_expr_line_count = 0; |
| |
| Debugger &debugger = GetCommandInterpreter().GetDebugger(); |
| bool color_prompt = debugger.GetUseColor(); |
| const bool multiple_lines = true; // Get multiple lines |
| IOHandlerSP io_handler_sp( |
| new IOHandlerEditline(debugger, IOHandler::Type::Expression, |
| "lldb-expr", // Name of input reader for history |
| llvm::StringRef(), // No prompt |
| llvm::StringRef(), // Continuation prompt |
| multiple_lines, color_prompt, |
| 1, // Show line numbers starting at 1 |
| *this, nullptr)); |
| |
| StreamFileSP output_sp = io_handler_sp->GetOutputStreamFileSP(); |
| if (output_sp) { |
| output_sp->PutCString( |
| "Enter expressions, then terminate with an empty line to evaluate:\n"); |
| output_sp->Flush(); |
| } |
| debugger.RunIOHandlerAsync(io_handler_sp); |
| } |
| |
| static EvaluateExpressionOptions |
| GetExprOptions(ExecutionContext &ctx, |
| CommandObjectExpression::CommandOptions command_options) { |
| command_options.OptionParsingStarting(&ctx); |
| |
| // Default certain settings for REPL regardless of the global settings. |
| command_options.unwind_on_error = false; |
| command_options.ignore_breakpoints = false; |
| command_options.debug = false; |
| |
| EvaluateExpressionOptions expr_options; |
| expr_options.SetUnwindOnError(command_options.unwind_on_error); |
| expr_options.SetIgnoreBreakpoints(command_options.ignore_breakpoints); |
| expr_options.SetTryAllThreads(command_options.try_all_threads); |
| |
| if (command_options.timeout > 0) |
| expr_options.SetTimeout(std::chrono::microseconds(command_options.timeout)); |
| else |
| expr_options.SetTimeout(llvm::None); |
| |
| return expr_options; |
| } |
| |
| bool CommandObjectExpression::DoExecute(llvm::StringRef command, |
| CommandReturnObject &result) { |
| m_fixed_expression.clear(); |
| auto exe_ctx = GetCommandInterpreter().GetExecutionContext(); |
| m_option_group.NotifyOptionParsingStarting(&exe_ctx); |
| |
| if (command.empty()) { |
| GetMultilineExpression(); |
| return result.Succeeded(); |
| } |
| |
| OptionsWithRaw args(command); |
| llvm::StringRef expr = args.GetRawPart(); |
| |
| if (args.HasArgs()) { |
| if (!ParseOptionsAndNotify(args.GetArgs(), result, m_option_group, exe_ctx)) |
| return false; |
| |
| if (m_repl_option.GetOptionValue().GetCurrentValue()) { |
| Target &target = GetSelectedOrDummyTarget(); |
| // Drop into REPL |
| m_expr_lines.clear(); |
| m_expr_line_count = 0; |
| |
| Debugger &debugger = target.GetDebugger(); |
| |
| // Check if the LLDB command interpreter is sitting on top of a REPL |
| // that launched it... |
| if (debugger.CheckTopIOHandlerTypes(IOHandler::Type::CommandInterpreter, |
| IOHandler::Type::REPL)) { |
| // the LLDB command interpreter is sitting on top of a REPL that |
| // launched it, so just say the command interpreter is done and |
| // fall back to the existing REPL |
| m_interpreter.GetIOHandler(false)->SetIsDone(true); |
| } else { |
| // We are launching the REPL on top of the current LLDB command |
| // interpreter, so just push one |
| bool initialize = false; |
| Status repl_error; |
| REPLSP repl_sp(target.GetREPL(repl_error, m_command_options.language, |
| nullptr, false)); |
| |
| if (!repl_sp) { |
| initialize = true; |
| repl_sp = target.GetREPL(repl_error, m_command_options.language, |
| nullptr, true); |
| if (!repl_error.Success()) { |
| result.SetError(repl_error); |
| return result.Succeeded(); |
| } |
| } |
| |
| if (repl_sp) { |
| if (initialize) { |
| repl_sp->SetEvaluateOptions( |
| GetExprOptions(exe_ctx, m_command_options)); |
| repl_sp->SetFormatOptions(m_format_options); |
| repl_sp->SetValueObjectDisplayOptions(m_varobj_options); |
| } |
| |
| IOHandlerSP io_handler_sp(repl_sp->GetIOHandler()); |
| io_handler_sp->SetIsDone(false); |
| debugger.RunIOHandlerAsync(io_handler_sp); |
| } else { |
| repl_error.SetErrorStringWithFormat( |
| "Couldn't create a REPL for %s", |
| Language::GetNameForLanguageType(m_command_options.language)); |
| result.SetError(repl_error); |
| return result.Succeeded(); |
| } |
| } |
| } |
| // No expression following options |
| else if (expr.empty()) { |
| GetMultilineExpression(); |
| return result.Succeeded(); |
| } |
| } |
| |
| Target &target = GetSelectedOrDummyTarget(); |
| if (EvaluateExpression(expr, result.GetOutputStream(), |
| result.GetErrorStream(), result)) { |
| |
| if (!m_fixed_expression.empty() && target.GetEnableNotifyAboutFixIts()) { |
| CommandHistory &history = m_interpreter.GetCommandHistory(); |
| // FIXME: Can we figure out what the user actually typed (e.g. some alias |
| // for expr???) |
| // If we can it would be nice to show that. |
| std::string fixed_command("expression "); |
| if (args.HasArgs()) { |
| // Add in any options that might have been in the original command: |
| fixed_command.append(std::string(args.GetArgStringWithDelimiter())); |
| fixed_command.append(m_fixed_expression); |
| } else |
| fixed_command.append(m_fixed_expression); |
| history.AppendString(fixed_command); |
| } |
| // Increment statistics to record this expression evaluation success. |
| target.IncrementStats(StatisticKind::ExpressionSuccessful); |
| return true; |
| } |
| |
| // Increment statistics to record this expression evaluation failure. |
| target.IncrementStats(StatisticKind::ExpressionFailure); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
