164 lines · cpp
1//===-- CommandPlugins.cpp ------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "CommandPlugins.h"10#include "Handler/ResponseHandler.h"11#include "JSONUtils.h"12#include "lldb/API/SBStream.h"13 14using namespace lldb_dap;15 16bool StartDebuggingCommand::DoExecute(lldb::SBDebugger debugger, char **command,17 lldb::SBCommandReturnObject &result) {18 // Command format like: `start-debugging <launch|attach> <configuration>`19 if (!command) {20 result.SetError("Invalid use of start-debugging, expected format "21 "`start-debugging <launch|attach> <configuration>`.");22 return false;23 }24 25 if (!command[0] || llvm::StringRef(command[0]).empty()) {26 result.SetError("start-debugging request type missing.");27 return false;28 }29 30 if (!command[1] || llvm::StringRef(command[1]).empty()) {31 result.SetError("start-debugging debug configuration missing.");32 return false;33 }34 35 llvm::StringRef request{command[0]};36 std::string raw_configuration{command[1]};37 38 llvm::Expected<llvm::json::Value> configuration =39 llvm::json::parse(raw_configuration);40 41 if (!configuration) {42 llvm::Error err = configuration.takeError();43 std::string msg = "Failed to parse json configuration: " +44 llvm::toString(std::move(err)) + "\n\n" +45 raw_configuration;46 result.SetError(msg.c_str());47 return false;48 }49 50 dap.SendReverseRequest<LogFailureResponseHandler>(51 "startDebugging",52 llvm::json::Object{{"request", request},53 {"configuration", std::move(*configuration)}});54 55 result.SetStatus(lldb::eReturnStatusSuccessFinishNoResult);56 57 return true;58}59 60bool ReplModeCommand::DoExecute(lldb::SBDebugger debugger, char **command,61 lldb::SBCommandReturnObject &result) {62 // Command format like: `repl-mode <variable|command|auto>?`63 // If a new mode is not specified report the current mode.64 if (!command || llvm::StringRef(command[0]).empty()) {65 std::string mode;66 switch (dap.repl_mode) {67 case ReplMode::Variable:68 mode = "variable";69 break;70 case ReplMode::Command:71 mode = "command";72 break;73 case ReplMode::Auto:74 mode = "auto";75 break;76 }77 78 result.Printf("lldb-dap repl-mode %s.\n", mode.c_str());79 result.SetStatus(lldb::eReturnStatusSuccessFinishResult);80 81 return true;82 }83 84 llvm::StringRef new_mode{command[0]};85 86 if (new_mode == "variable") {87 dap.repl_mode = ReplMode::Variable;88 } else if (new_mode == "command") {89 dap.repl_mode = ReplMode::Command;90 } else if (new_mode == "auto") {91 dap.repl_mode = ReplMode::Auto;92 } else {93 lldb::SBStream error_message;94 error_message.Printf("Invalid repl-mode '%s'. Expected one of 'variable', "95 "'command' or 'auto'.\n",96 new_mode.data());97 result.SetError(error_message.GetData());98 return false;99 }100 101 result.Printf("lldb-dap repl-mode %s set.\n", new_mode.data());102 result.SetStatus(lldb::eReturnStatusSuccessFinishNoResult);103 return true;104}105 106/// Sends a DAP event with an optional body.107///108/// https://code.visualstudio.com/api/references/vscode-api#debug.onDidReceiveDebugSessionCustomEvent109bool SendEventCommand::DoExecute(lldb::SBDebugger debugger, char **command,110 lldb::SBCommandReturnObject &result) {111 // Command format like: `send-event <name> <body>?`112 if (!command || !command[0] || llvm::StringRef(command[0]).empty()) {113 result.SetError("Not enough arguments found, expected format "114 "`lldb-dap send-event <name> <body>?`.");115 return false;116 }117 118 llvm::StringRef name{command[0]};119 // Events that are stateful and should be handled by lldb-dap internally.120 const std::array internal_events{"breakpoint", "capabilities", "continued",121 "exited", "initialize", "loadedSource",122 "module", "process", "stopped",123 "terminated", "thread"};124 if (llvm::is_contained(internal_events, name)) {125 std::string msg =126 llvm::formatv("Invalid use of lldb-dap send-event, event \"{0}\" "127 "should be handled by lldb-dap internally.",128 name)129 .str();130 result.SetError(msg.c_str());131 return false;132 }133 134 llvm::json::Object event(CreateEventObject(name));135 136 if (command[1] && !llvm::StringRef(command[1]).empty()) {137 // See if we have unused arguments.138 if (command[2]) {139 result.SetError(140 "Additional arguments found, expected `lldb-dap send-event "141 "<name> <body>?`.");142 return false;143 }144 145 llvm::StringRef raw_body{command[1]};146 147 llvm::Expected<llvm::json::Value> body = llvm::json::parse(raw_body);148 149 if (!body) {150 llvm::Error err = body.takeError();151 std::string msg = "Failed to parse custom event body: " +152 llvm::toString(std::move(err));153 result.SetError(msg.c_str());154 return false;155 }156 157 event.try_emplace("body", std::move(*body));158 }159 160 dap.SendJSON(llvm::json::Value(std::move(event)));161 result.SetStatus(lldb::eReturnStatusSuccessFinishNoResult);162 return true;163}164