Merge branch 'main' into users/ojhunt/ptrauth-additionsusers/ojhunt/ptrauth-additions

1 files changed, 82 insertions, 0 deletions

diff --git a/lldb/unittests/Target/LanguageTest.cpp b/lldb/unittests/Target/LanguageTest.cpp
new file mode 100644
index 000000000000..720863bda68e
--- /dev/null
+++ b/lldb/unittests/Target/LanguageTest.cpp
@@ -0,0 +1,82 @@
+//===-- LanguageTest.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 "lldb/Target/Language.h"
+#include "lldb/lldb-enumerations.h"
+#include "gtest/gtest.h"
+
+using namespace lldb_private;
+using namespace lldb;
+
+namespace {
+class LanguageTest : public ::testing::Test {};
+} // namespace
+
+TEST_F(LanguageTest, SourceLanguage_GetDescription) {
+  for (uint32_t i = 1; i < lldb::eNumLanguageTypes; ++i) {
+    // 0x29 is unassigned
+    if (i == 0x29)
+      continue;
+
+    auto lang_type = static_cast<lldb::LanguageType>(i);
+    SourceLanguage lang(lang_type);
+
+    // eLanguageTypeHIP is not implemented as a DW_LNAME because of a conflict.
+    if (lang_type == lldb::eLanguageTypeHIP)
+      EXPECT_FALSE(lang);
+    else
+      EXPECT_TRUE(lang);
+  }
+
+  EXPECT_EQ(SourceLanguage(eLanguageTypeC_plus_plus).GetDescription(),
+            "ISO C++");
+  EXPECT_EQ(SourceLanguage(eLanguageTypeC_plus_plus_17).GetDescription(),
+            "C++17");
+  EXPECT_EQ(SourceLanguage(eLanguageTypeC_plus_plus_20).GetDescription(),
+            "C++20");
+
+  EXPECT_EQ(SourceLanguage(eLanguageTypeC).GetDescription(), "C (K&R and ISO)");
+  EXPECT_EQ(SourceLanguage(eLanguageTypeC89).GetDescription(), "C89");
+
+  EXPECT_EQ(SourceLanguage(eLanguageTypeObjC).GetDescription(), "Objective C");
+  EXPECT_EQ(SourceLanguage(eLanguageTypeMipsAssembler).GetDescription(),
+            "Assembly");
+
+  auto next_vendor_language =
+      static_cast<lldb::LanguageType>(eLanguageTypeMipsAssembler + 1);
+  if (next_vendor_language < eNumLanguageTypes)
+    EXPECT_NE(SourceLanguage(next_vendor_language).GetDescription(), "Unknown");
+
+  EXPECT_EQ(SourceLanguage(eLanguageTypeUnknown).GetDescription(), "Unknown");
+}
+
+TEST_F(LanguageTest, SourceLanguage_AsLanguageType) {
+  EXPECT_EQ(SourceLanguage(eLanguageTypeC_plus_plus).AsLanguageType(),
+            eLanguageTypeC_plus_plus);
+  EXPECT_EQ(SourceLanguage(eLanguageTypeC_plus_plus_03).AsLanguageType(),
+            eLanguageTypeC_plus_plus_03);
+
+  // Vendor-specific language code.
+  EXPECT_EQ(SourceLanguage(eLanguageTypeMipsAssembler).AsLanguageType(),
+            eLanguageTypeAssembly);
+  EXPECT_EQ(SourceLanguage(eLanguageTypeUnknown).AsLanguageType(),
+            eLanguageTypeUnknown);
+}
+
+TEST_F(LanguageTest, SourceLanguage_LastStandardLanguage) {
+  // eLanguageTypeLastStandardLanguage should be treated as a standard DWARF
+  // language.
+  SourceLanguage lang(eLanguageTypeLastStandardLanguage);
+  EXPECT_TRUE(lang);
+
+  // It should have a valid description (not "Unknown").
+  EXPECT_NE(lang.GetDescription(), "Unknown");
+
+  // It should convert to the correct language type.
+  EXPECT_EQ(lang.AsLanguageType(), eLanguageTypeLastStandardLanguage);
+}