From 515bf619e8eea223593f2c465d412405e2909374 Mon Sep 17 00:00:00 2001
From: Eugen Wissner <belka@caraus.de>
Date: Fri, 1 Sep 2017 19:38:44 +0200
Subject: [PATCH] Add support for dmd 2.076.0

---
 .travis.yml               |  3 +-
 appveyor.yml              |  6 ++++
 source/tanya/meta/trait.d | 60 ++++++++++++++++++++++++++++++++++++++-
 3 files changed, 67 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 176c2a0..84a483c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,7 @@ os:
 language: d
 
 d:
+  - dmd-2.076.0
   - dmd-2.075.1
   - dmd-2.074.1
   - dmd-2.073.2
@@ -22,7 +23,7 @@ addons:
       - gcc-multilib
 
 before_script:
-  - if [ "$PS1" = '(dmd-2.075.1)' ]; then
+  - if [ "$PS1" = '(dmd-2.076.0)' ]; then
       export UNITTEST="unittest-cov";
     fi
 
diff --git a/appveyor.yml b/appveyor.yml
index 1eee97f..5c52adb 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,6 +3,12 @@ os: Visual Studio 2015
 
 environment:
   matrix:
+    - DC: dmd
+      DVersion: 2.076.0
+      arch: x64
+    - DC: dmd
+      DVersion: 2.076.0
+      arch: x86
     - DC: dmd
       DVersion: 2.075.1
       arch: x64
diff --git a/source/tanya/meta/trait.d b/source/tanya/meta/trait.d
index 697673f..6587fa2 100644
--- a/source/tanya/meta/trait.d
+++ b/source/tanya/meta/trait.d
@@ -209,6 +209,23 @@ pure nothrow @safe @nogc unittest
     static assert(sizeOf!(void[16]) == 16);
 }
 
+/**
+ * Returns the alignment of the type $(D_PARAM T).
+ *
+ * Params:
+ *  T = A type.
+ *
+ * Returns: Alignment of the type $(D_PARAM T).
+ */
+enum size_t alignOf(T) = T.alignof;
+
+///
+pure nothrow @safe @nogc unittest
+{
+    static assert(alignOf!bool == bool.alignof);
+    static assert(is(typeof(alignOf!bool) == typeof(bool.alignof)));
+}
+
 /**
  * Tests whether $(D_INLINECODE Args[0]) and $(D_INLINECODE Args[1]) are the
  * same symbol.
@@ -396,7 +413,8 @@ version (TanyaPhobos)
                                hasElaborateDestructor,
                                hasElaborateCopyConstructor,
                                hasElaborateAssign,
-                               EnumMembers;
+                               EnumMembers,
+                               classInstanceAlignment;
 }
 else:
 
@@ -2627,3 +2645,43 @@ pure nothrow @nogc @safe unittest
     }
     static assert([E.one, E.two, E.three] == [ EnumMembers!E ]);
 }
+
+/**
+ * Different than $(D_INLINECODE T.alignof), which is the same for all class
+ * types,  $(D_PSYMBOL classInstanceOf) determines the alignment of the class
+ * instance and not of its reference.
+ *
+ * Params:
+ *  T = A class.
+ *
+ * Returns: Alignment of an instance of the class $(D_PARAM T).
+ */
+template classInstanceAlignment(T)
+if (is(T == class))
+{
+    private enum ptrdiff_t pred(U1, U2) = U1.alignof - U2.alignof;
+    private alias Fields = typeof(T.tupleof);
+    enum size_t classInstanceAlignment = Max!(pred, T, Fields).alignof;
+}
+
+///
+pure nothrow @safe @nogc unittest
+{
+    class C1
+    {
+    }
+    static assert(classInstanceAlignment!C1 == C1.alignof);
+
+    struct S
+    {
+        align(8)
+        uint s;
+
+        int i;
+    }
+    class C2
+    {
+        S s;
+    }
+    static assert(classInstanceAlignment!C2 == S.alignof);
+}