1 files changed, 87 insertions, 0 deletions
diff --git a/lldb/source/Commands/CommandObjectHelp.h b/lldb/source/Commands/CommandObjectHelp.h
new file mode 100644
index 000000000000..52a00ac79ff9
--- /dev/null
+++ b/lldb/source/Commands/CommandObjectHelp.h
@@ -0,0 +1,87 @@
+//===-- CommandObjectHelp.h -------------------------------------*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_CommandObjectHelp_h_
+#define liblldb_CommandObjectHelp_h_
+
+#include "lldb/Host/OptionParser.h"
+#include "lldb/Interpreter/CommandObject.h"
+#include "lldb/Interpreter/Options.h"
+
+namespace lldb_private {
+
+// CommandObjectHelp
+
+class CommandObjectHelp : public CommandObjectParsed {
+public:
+  CommandObjectHelp(CommandInterpreter &interpreter);
+
+  ~CommandObjectHelp() override;
+
+  void HandleCompletion(CompletionRequest &request) override;
+
+  static void GenerateAdditionalHelpAvenuesMessage(
+      Stream *s, llvm::StringRef command, llvm::StringRef prefix,
+      llvm::StringRef subcommand, bool include_upropos = true,
+      bool include_type_lookup = true);
+
+  class CommandOptions : public Options {
+  public:
+    CommandOptions() : Options() {}
+
+    ~CommandOptions() override {}
+
+    Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg,
+                          ExecutionContext *execution_context) override {
+      Status error;
+      const int short_option = m_getopt_table[option_idx].val;
+
+      switch (short_option) {
+      case 'a':
+        m_show_aliases = false;
+        break;
+      case 'u':
+        m_show_user_defined = false;
+        break;
+      case 'h':
+        m_show_hidden = true;
+        break;
+      default:
+        llvm_unreachable("Unimplemented option");
+      }
+
+      return error;
+    }
+
+    void OptionParsingStarting(ExecutionContext *execution_context) override {
+      m_show_aliases = true;
+      m_show_user_defined = true;
+      m_show_hidden = false;
+    }
+
+    llvm::ArrayRef<OptionDefinition> GetDefinitions() override;
+
+    // Instance variables to hold the values for command options.
+
+    bool m_show_aliases;
+    bool m_show_user_defined;
+    bool m_show_hidden;
+  };
+
+  Options *GetOptions() override { return &m_options; }
+
+protected:
+  bool DoExecute(Args &command, CommandReturnObject &result) override;
+
+private:
+  CommandOptions m_options;
+};
+
+} // namespace lldb_private
+
+#endif // liblldb_CommandObjectHelp_h_