[Lldb-commits] [lldb] r361362 - Add AST logging

[Gabor Marton via lldb-commits]

Author: martong
Date: Wed May 22 02:10:19 2019
New Revision: 361362

URL: http://llvm.org/viewvc/llvm-project?rev=361362&view=rev
Log:
Add AST logging

Summary:
Log the AST of the TU associated with LLDB's `expr` command, once a declaration
is completed

Reviewers: shafik

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D62061

Modified:
    lldb/trunk/include/lldb/Utility/Logging.h
    lldb/trunk/source/Symbol/ClangASTImporter.cpp
    lldb/trunk/source/Utility/Logging.cpp

Modified: lldb/trunk/include/lldb/Utility/Logging.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Utility/Logging.h?rev=361362&r1=361361&r2=361362&view=diff
==============================================================================
--- lldb/trunk/include/lldb/Utility/Logging.h (original)
+++ lldb/trunk/include/lldb/Utility/Logging.h Wed May 22 02:10:19 2019
@@ -42,6 +42,7 @@
 #define LIBLLDB_LOG_LANGUAGE (1u << 28)
 #define LIBLLDB_LOG_DATAFORMATTERS (1u << 29)
 #define LIBLLDB_LOG_DEMANGLE (1u << 30)
+#define LIBLLDB_LOG_AST (1u << 31)
 #define LIBLLDB_LOG_ALL (UINT32_MAX)
 #define LIBLLDB_LOG_DEFAULT                                                    \
   (LIBLLDB_LOG_PROCESS | LIBLLDB_LOG_THREAD | LIBLLDB_LOG_DYNAMIC_LOADER |     \

Modified: lldb/trunk/source/Symbol/ClangASTImporter.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Symbol/ClangASTImporter.cpp?rev=361362&r1=361361&r2=361362&view=diff
==============================================================================
--- lldb/trunk/source/Symbol/ClangASTImporter.cpp (original)
+++ lldb/trunk/source/Symbol/ClangASTImporter.cpp Wed May 22 02:10:19 2019
@@ -951,6 +951,28 @@ void ClangASTImporter::ASTImporterDelega
   if (clang::TagDecl *to_tag = dyn_cast<clang::TagDecl>(to)) {
     if (clang::TagDecl *from_tag = dyn_cast<clang::TagDecl>(from)) {
       to_tag->setCompleteDefinition(from_tag->isCompleteDefinition());
+
+      if (Log *log_ast =
+              lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_AST)) {
+        std::string name_string;
+        if (NamedDecl *from_named_decl = dyn_cast<clang::NamedDecl>(from)) {
+          llvm::raw_string_ostream name_stream(name_string);
+          from_named_decl->printName(name_stream);
+          name_stream.flush();
+        }
+        LLDB_LOG(log_ast, "==== [ClangASTImporter][TUDecl: {0}] Imported "
+                          "({1}Decl*){2}, named {3} (from "
+                          "(Decl*){4})",
+                 static_cast<void *>(to->getTranslationUnitDecl()),
+                 from->getDeclKindName(), static_cast<void *>(to), name_string,
+                 static_cast<void *>(from));
+
+        // Log the AST of the TU.
+        std::string ast_string;
+        llvm::raw_string_ostream ast_stream(ast_string);
+        to->getTranslationUnitDecl()->dump(ast_stream);
+        LLDB_LOG(log_ast, "{0}", ast_string);
+      }
     }
   }
 

Modified: lldb/trunk/source/Utility/Logging.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Utility/Logging.cpp?rev=361362&r1=361361&r2=361362&view=diff
==============================================================================
--- lldb/trunk/source/Utility/Logging.cpp (original)
+++ lldb/trunk/source/Utility/Logging.cpp Wed May 22 02:10:19 2019
@@ -17,6 +17,7 @@ using namespace lldb_private;
 
 static constexpr Log::Category g_categories[] = {
   {{"api"}, {"log API calls and return values"}, LIBLLDB_LOG_API},
+  {{"ast"}, {"log AST"}, LIBLLDB_LOG_AST},
   {{"break"}, {"log breakpoints"}, LIBLLDB_LOG_BREAKPOINTS},
   {{"commands"}, {"log command argument parsing"}, LIBLLDB_LOG_COMMANDS},
   {{"comm"}, {"log communication activities"}, LIBLLDB_LOG_COMMUNICATION},