108 lines · cpp
1//===-- ClangREPL.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 "ClangREPL.h"10#include "lldb/Core/Debugger.h"11#include "lldb/Core/PluginManager.h"12#include "lldb/Expression/ExpressionVariable.h"13 14using namespace lldb_private;15 16LLDB_PLUGIN_DEFINE(ClangREPL)17 18char ClangREPL::ID;19 20ClangREPL::ClangREPL(lldb::LanguageType language, Target &target)21 : llvm::RTTIExtends<ClangREPL, REPL>(target), m_language(language),22 m_implicit_expr_result_regex("\\$[0-9]+") {}23 24ClangREPL::~ClangREPL() = default;25 26void ClangREPL::Initialize() {27 LanguageSet languages;28 // FIXME: There isn't a way to ask CPlusPlusLanguage and ObjCLanguage for29 // a list of languages they support.30 languages.Insert(lldb::LanguageType::eLanguageTypeC);31 languages.Insert(lldb::LanguageType::eLanguageTypeC89);32 languages.Insert(lldb::LanguageType::eLanguageTypeC99);33 languages.Insert(lldb::LanguageType::eLanguageTypeC11);34 languages.Insert(lldb::LanguageType::eLanguageTypeC_plus_plus);35 languages.Insert(lldb::LanguageType::eLanguageTypeC_plus_plus_03);36 languages.Insert(lldb::LanguageType::eLanguageTypeC_plus_plus_11);37 languages.Insert(lldb::LanguageType::eLanguageTypeC_plus_plus_14);38 languages.Insert(lldb::LanguageType::eLanguageTypeObjC);39 languages.Insert(lldb::LanguageType::eLanguageTypeObjC_plus_plus);40 PluginManager::RegisterPlugin(GetPluginNameStatic(), "C language REPL",41 &CreateInstance, languages);42}43 44void ClangREPL::Terminate() {45 PluginManager::UnregisterPlugin(&CreateInstance);46}47 48lldb::REPLSP ClangREPL::CreateInstance(Status &error,49 lldb::LanguageType language,50 Debugger *debugger, Target *target,51 const char *repl_options) {52 // Creating a dummy target if only a debugger is given isn't implemented yet.53 if (!target) {54 error = Status::FromErrorString("must have a target to create a REPL");55 return nullptr;56 }57 lldb::REPLSP result = std::make_shared<ClangREPL>(language, *target);58 target->SetREPL(language, result);59 error = Status();60 return result;61}62 63Status ClangREPL::DoInitialization() { return Status(); }64 65llvm::StringRef ClangREPL::GetSourceFileBasename() {66 static constexpr llvm::StringLiteral g_repl("repl.c");67 return g_repl;68}69 70const char *ClangREPL::GetAutoIndentCharacters() { return " "; }71 72bool ClangREPL::SourceIsComplete(const std::string &source) {73 // FIXME: There isn't a good way to know if the input source is complete or74 // not, so just say that every single REPL line is ready to be parsed.75 return !source.empty();76}77 78lldb::offset_t ClangREPL::GetDesiredIndentation(const StringList &lines,79 int cursor_position,80 int tab_size) {81 // FIXME: Not implemented.82 return LLDB_INVALID_OFFSET;83}84 85lldb::LanguageType ClangREPL::GetLanguage() { return m_language; }86 87bool ClangREPL::PrintOneVariable(Debugger &debugger,88 lldb::StreamFileSP &output_sp,89 lldb::ValueObjectSP &valobj_sp,90 ExpressionVariable *var) {91 // If a ExpressionVariable was passed, check first if that variable is just92 // an automatically created expression result. These variables are already93 // printed by the REPL so this is done to prevent printing the variable twice.94 if (var) {95 if (m_implicit_expr_result_regex.Execute(var->GetName().GetStringRef()))96 return true;97 }98 if (llvm::Error error = valobj_sp->Dump(*output_sp))99 *output_sp << "error: " << toString(std::move(error));100 101 return true;102}103 104void ClangREPL::CompleteCode(const std::string ¤t_code,105 CompletionRequest &request) {106 // Not implemented.107}108