From d0f0f90be16c2ac553b5fa08512045273135147a Mon Sep 17 00:00:00 2001
From: Alistair Delva <adelva@google.com>
Date: Wed, 10 Apr 2024 14:15:29 -0700
Subject: Update to v4.2.1

Change-Id: I47cef2be94299220d80265d949a95b58eee2c23b
---
 Lib/d/std_unique_ptr.i | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 Lib/d/std_unique_ptr.i

(limited to 'Lib/d/std_unique_ptr.i')

diff --git a/Lib/d/std_unique_ptr.i b/Lib/d/std_unique_ptr.i
new file mode 100644
index 000000000..9317a7e0e
--- /dev/null
+++ b/Lib/d/std_unique_ptr.i
@@ -0,0 +1,42 @@
+/* -----------------------------------------------------------------------------
+ * std_unique_ptr.i
+ *
+ * SWIG library file for handling std::unique_ptr.
+ * Memory ownership is passed from the std::unique_ptr C++ layer to the proxy
+ * class when returning a std::unique_ptr from a function.
+ * Memory ownership is passed from the proxy class to the std::unique_ptr in the
+ * C++ layer when passed as a parameter to a wrapped function.
+ * ----------------------------------------------------------------------------- */
+
+%define %unique_ptr(TYPE)
+%typemap (ctype) std::unique_ptr< TYPE > "void *"
+%typemap (imtype) std::unique_ptr< TYPE > "void*"
+%typemap (dtype) std::unique_ptr< TYPE > "$typemap(dtype, TYPE)"
+
+%typemap(in) std::unique_ptr< TYPE >
+%{ $1.reset((TYPE *)$input); %}
+
+%typemap(din,
+  nativepointer="cast(void*)$dinput"
+) std::unique_ptr< TYPE > "$typemap(dtype, TYPE).swigRelease($dinput)"
+
+%typemap (out) std::unique_ptr< TYPE > %{
+  $result = (void *)$1.release();
+%}
+
+%typemap(dout, excode=SWIGEXCODE,
+  nativepointer="{\n  auto ret = cast($dtype)$imcall;$excode\n  return ret;\n}"
+) std::unique_ptr< TYPE > {
+  void* cPtr = $imcall;
+  $typemap(dtype, TYPE) ret = (cPtr is null) ? null : new $typemap(dtype, TYPE)(cPtr, true);$excode
+  return ret;
+}
+
+%typemap(typecheck, precedence=SWIG_TYPECHECK_POINTER, equivalent="TYPE *") std::unique_ptr< TYPE > ""
+
+%template() std::unique_ptr< TYPE >;
+%enddef
+
+namespace std {
+  template <class T> class unique_ptr {};
+}
-- 
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