[Lldb-commits] [lldb] 8340fbb - [lldb] Reactivate Objective-C++ plugin
Raphael Isemann via lldb-commits
lldb-commits at lists.llvm.org
Fri Jun 19 10:17:09 PDT 2020
Author: Raphael Isemann
Date: 2020-06-19T19:16:46+02:00
New Revision: 8340fbb9c7bc9ea5f3b636ec3c449ff87d88fd9d
URL: https://github.com/llvm/llvm-project/commit/8340fbb9c7bc9ea5f3b636ec3c449ff87d88fd9d
DIFF: https://github.com/llvm/llvm-project/commit/8340fbb9c7bc9ea5f3b636ec3c449ff87d88fd9d.diff
LOG: [lldb] Reactivate Objective-C++ plugin
Summary:
Since commit 7b3ef05a37fef2f805d31f498d30198ddeeb1a0c the Objective-C++ plugin is dead code.
That commit added Objective-C++ to the list of languages for which `Language::LanguageIsCPlusPlus`
returns true. As the C++ language plugin also uses that method to figure out if it is responsible for a
given language, the C++ plugin since then also became the plugin that we found when looking for
a language plugin for Objective-C++. The only real fallout from that is that the source highlighting
for Objective-C++ files never worked as we always found the C++ plugin which refuses to highlight
files with Objective-C++ extensions.
This patch just adds a special exception for Objective-C++ to the list of languages that are governed
by the C++ plugin. Also adds a test that makes sure that we find the right plugin for all C language
types and that the highlighting for `.mm` (Objective-C++) and `.m` (Objective-C) files works.
I didn't revert 7b3ef05a37fef2f805d31f498d30198ddeeb1a0c as it does make sense to return
true for Objective-C++ from `Language::LanguageIsCPlusPlus` (e.g., we currently check if we care about
ODR violations by doing `if (Language::LanguageIsCPlusPlus(...))` and this should also work for
Objective-C++).
Fixes rdar://64420183
Reviewers: aprantl
Reviewed By: aprantl
Subscribers: mgorny, abidh, JDevlieghere
Differential Revision: https://reviews.llvm.org/D82109
Added:
lldb/unittests/Language/CLanguages/CLanguagesTest.cpp
lldb/unittests/Language/CLanguages/CMakeLists.txt
Modified:
lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
lldb/unittests/Language/CMakeLists.txt
lldb/unittests/Language/Highlighting/HighlighterTest.cpp
Removed:
################################################################################
diff --git a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
index 9d7d4902e0a6..08e43ae6b3e8 100644
--- a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
+++ b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
@@ -70,7 +70,9 @@ uint32_t CPlusPlusLanguage::GetPluginVersion() { return 1; }
// Static Functions
Language *CPlusPlusLanguage::CreateInstance(lldb::LanguageType language) {
- if (Language::LanguageIsCPlusPlus(language))
+ // Use plugin for C++ but not for Objective-C++ (which has its own plugin).
+ if (Language::LanguageIsCPlusPlus(language) &&
+ language != eLanguageTypeObjC_plus_plus)
return new CPlusPlusLanguage();
return nullptr;
}
diff --git a/lldb/unittests/Language/CLanguages/CLanguagesTest.cpp b/lldb/unittests/Language/CLanguages/CLanguagesTest.cpp
new file mode 100644
index 000000000000..c68bd56c337a
--- /dev/null
+++ b/lldb/unittests/Language/CLanguages/CLanguagesTest.cpp
@@ -0,0 +1,46 @@
+//===-- CLanguagesTest.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 "Plugins/Language/CPlusPlus/CPlusPlusLanguage.h"
+#include "Plugins/Language/ObjC/ObjCLanguage.h"
+#include "Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.h"
+#include "TestingSupport/SubsystemRAII.h"
+#include "lldb/lldb-enumerations.h"
+
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+using namespace lldb_private;
+
+/// Returns the name of the LLDB plugin for the given language or a null
+/// ConstString if there is no fitting plugin.
+static ConstString GetPluginName(lldb::LanguageType language) {
+ Language *language_plugin = Language::FindPlugin(language);
+ if (language_plugin)
+ return language_plugin->GetPluginName();
+ return ConstString();
+}
+
+TEST(CLanguages, LookupCLanguagesByLanguageType) {
+ SubsystemRAII<CPlusPlusLanguage, ObjCPlusPlusLanguage, ObjCLanguage> langs;
+
+ // There is no plugin to find for C.
+ EXPECT_EQ(Language::FindPlugin(lldb::eLanguageTypeC), nullptr);
+ EXPECT_EQ(Language::FindPlugin(lldb::eLanguageTypeC89), nullptr);
+ EXPECT_EQ(Language::FindPlugin(lldb::eLanguageTypeC99), nullptr);
+ EXPECT_EQ(Language::FindPlugin(lldb::eLanguageTypeC11), nullptr);
+
+ EXPECT_EQ(GetPluginName(lldb::eLanguageTypeC_plus_plus), "cplusplus");
+ EXPECT_EQ(GetPluginName(lldb::eLanguageTypeC_plus_plus_03), "cplusplus");
+ EXPECT_EQ(GetPluginName(lldb::eLanguageTypeC_plus_plus_11), "cplusplus");
+ EXPECT_EQ(GetPluginName(lldb::eLanguageTypeC_plus_plus_14), "cplusplus");
+
+ EXPECT_EQ(GetPluginName(lldb::eLanguageTypeObjC), "objc");
+
+ EXPECT_EQ(GetPluginName(lldb::eLanguageTypeObjC_plus_plus), "objcplusplus");
+}
diff --git a/lldb/unittests/Language/CLanguages/CMakeLists.txt b/lldb/unittests/Language/CLanguages/CMakeLists.txt
new file mode 100644
index 000000000000..136140487da6
--- /dev/null
+++ b/lldb/unittests/Language/CLanguages/CMakeLists.txt
@@ -0,0 +1,8 @@
+add_lldb_unittest(LanguageCLanguagesTests
+ CLanguagesTest.cpp
+
+ LINK_LIBS
+ lldbPluginCPlusPlusLanguage
+ lldbPluginObjCLanguage
+ lldbPluginObjCPlusPlusLanguage
+)
diff --git a/lldb/unittests/Language/CMakeLists.txt b/lldb/unittests/Language/CMakeLists.txt
index 3a6e5de785e5..3cca831956ab 100644
--- a/lldb/unittests/Language/CMakeLists.txt
+++ b/lldb/unittests/Language/CMakeLists.txt
@@ -1,2 +1,3 @@
add_subdirectory(CPlusPlus)
+add_subdirectory(CLanguages)
add_subdirectory(Highlighting)
diff --git a/lldb/unittests/Language/Highlighting/HighlighterTest.cpp b/lldb/unittests/Language/Highlighting/HighlighterTest.cpp
index 447dccee6e2f..7a2d7160e94f 100644
--- a/lldb/unittests/Language/Highlighting/HighlighterTest.cpp
+++ b/lldb/unittests/Language/Highlighting/HighlighterTest.cpp
@@ -58,6 +58,8 @@ TEST_F(HighlighterTest, HighlighterSelectionPath) {
EXPECT_EQ(getName("a/dir.CC"), "clang");
EXPECT_EQ(getName("/a/dir.hpp"), "clang");
EXPECT_EQ(getName("header.h"), "clang");
+ EXPECT_EQ(getName("foo.m"), "clang");
+ EXPECT_EQ(getName("foo.mm"), "clang");
EXPECT_EQ(getName(""), "none");
EXPECT_EQ(getName("/dev/null"), "none");
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