diff options
Diffstat (limited to 'lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp')
| -rw-r--r-- | lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp b/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp index 3c49c91..6b121c9 100644 --- a/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp +++ b/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp @@ -74,6 +74,7 @@ #include "lldb/Core/Debugger.h" #include "lldb/Core/Disassembler.h" #include "lldb/Core/Module.h" +#include "lldb/Expression/DiagnosticManager.h" #include "lldb/Expression/IRExecutionUnit.h" #include "lldb/Expression/IRInterpreter.h" #include "lldb/Host/File.h" @@ -96,6 +97,7 @@ #include "Plugins/LanguageRuntime/ObjC/ObjCLanguageRuntime.h" #include "Plugins/Platform/MacOSX/PlatformDarwin.h" #include "lldb/Utility/XcodeSDK.h" +#include "lldb/lldb-enumerations.h" #include <cctype> #include <memory> @@ -527,7 +529,8 @@ static void SetupTargetOpts(CompilerInstance &compiler, static void SetupLangOpts(CompilerInstance &compiler, ExecutionContextScope &exe_scope, - const Expression &expr) { + const Expression &expr, + DiagnosticManager &diagnostic_manager) { Log *log = GetLog(LLDBLog::Expressions); // If the expression is being evaluated in the context of an existing stack @@ -547,6 +550,9 @@ static void SetupLangOpts(CompilerInstance &compiler, : lldb::eLanguageTypeUnknown), lldb_private::Language::GetNameForLanguageType(language)); + lldb::LanguageType language_for_note = language; + std::string language_fallback_reason; + LangOptions &lang_opts = compiler.getLangOpts(); switch (language) { @@ -560,6 +566,10 @@ static void SetupLangOpts(CompilerInstance &compiler, // family language, because the expression parser uses features of C++ to // capture values. lang_opts.CPlusPlus = true; + + language_for_note = lldb::eLanguageTypeC_plus_plus; + language_fallback_reason = + "Expression evaluation in pure C not supported. "; break; case lldb::eLanguageTypeObjC: lang_opts.ObjC = true; @@ -567,6 +577,10 @@ static void SetupLangOpts(CompilerInstance &compiler, // to "ask for ObjC, get ObjC++" (see comment above). lang_opts.CPlusPlus = true; + language_for_note = lldb::eLanguageTypeObjC_plus_plus; + language_fallback_reason = + "Expression evaluation in pure Objective-C not supported. "; + // Clang now sets as default C++14 as the default standard (with // GNU extensions), so we do the same here to avoid mismatches that // cause compiler error when evaluating expressions (e.g. nullptr not found @@ -607,9 +621,27 @@ static void SetupLangOpts(CompilerInstance &compiler, lang_opts.CPlusPlus = true; lang_opts.CPlusPlus11 = true; compiler.getHeaderSearchOpts().UseLibcxx = true; + + language_for_note = lldb::eLanguageTypeObjC_plus_plus; + if (language != language_for_note) { + if (language != lldb::eLanguageTypeUnknown) + language_fallback_reason = llvm::formatv( + "Expression evaluation in {0} not supported. ", + lldb_private::Language::GetDisplayNameForLanguageType(language)); + + language_fallback_reason += + llvm::formatv("Falling back to default language. "); + } break; } + diagnostic_manager.AddDiagnostic( + llvm::formatv("{0}Ran expression as '{1}'.", language_fallback_reason, + lldb_private::Language::GetDisplayNameForLanguageType( + language_for_note)) + .str(), + lldb::Severity::eSeverityInfo, DiagnosticOrigin::eDiagnosticOriginLLDB); + lang_opts.Bool = true; lang_opts.WChar = true; lang_opts.Blocks = true; @@ -687,8 +719,8 @@ static void SetupImportStdModuleLangOpts(CompilerInstance &compiler, ClangExpressionParser::ClangExpressionParser( ExecutionContextScope *exe_scope, Expression &expr, - bool generate_debug_info, std::vector<std::string> include_directories, - std::string filename) + bool generate_debug_info, DiagnosticManager &diagnostic_manager, + std::vector<std::string> include_directories, std::string filename) : ExpressionParser(exe_scope, expr, generate_debug_info), m_compiler(), m_pp_callbacks(nullptr), m_include_directories(std::move(include_directories)), @@ -754,7 +786,7 @@ ClangExpressionParser::ClangExpressionParser( } // 4. Set language options. - SetupLangOpts(*m_compiler, *exe_scope, expr); + SetupLangOpts(*m_compiler, *exe_scope, expr, diagnostic_manager); auto *clang_expr = dyn_cast<ClangUserExpression>(&m_expr); if (clang_expr && clang_expr->DidImportCxxModules()) { LLDB_LOG(log, "Adding lang options for importing C++ modules"); |