Introduce and use compile_module_up

This introduces compile_module_up, a unique pointer for
compile_module, and changes a few spots to use it.

gdb/ChangeLog
2020-09-23  Tom Tromey  <tom@tromey.com>

	* compile/compile.c (eval_compile_command): Update.
	* compile/compile-object-run.h (compile_object_run): Take a
	compile_module_up.
	* compile/compile-object-run.c (compile_object_run): Take a
	compile_module_up.
	* compile/compile-object-load.h (struct compile_module): Add
	constructor, destructor.
	(compile_module_up): New typedef.
	(compile_object_load): Return compile_object_up.
	* compile/compile-object-load.c (compile_object_load): Return
	compile_module_up.

1 files changed, 11 insertions, 1 deletions

diff --git a/gdb/compile/compile-object-load.h b/gdb/compile/compile-object-load.h
index c4adc71..9def29e 100644
--- a/gdb/compile/compile-object-load.h
+++ b/gdb/compile/compile-object-load.h
@@ -46,6 +46,13 @@ private:
 
 struct compile_module
 {
+  compile_module () = default;
+
+  DISABLE_COPY_AND_ASSIGN (compile_module);
+
+  compile_module &operator= (compile_module &&other) = default;
+  compile_module (compile_module &&other) = default;
+
   /* objfile for the compiled module.  */
   struct objfile *objfile;
 
@@ -77,7 +84,10 @@ struct compile_module
   struct munmap_list *munmap_list_head;
 };
 
-extern struct compile_module *compile_object_load
+/* A unique pointer for a compile_module.  */
+typedef std::unique_ptr<compile_module> compile_module_up;
+
+extern compile_module_up compile_object_load
   (const compile_file_names &fnames,
    enum compile_i_scope_types scope, void *scope_data);