Add sk_sp make variant to SkArenaAlloc.

R=bungeman@google.com
BUG=skia:

Change-Id: Iec588cb6946f0230ff3d3ec46499c365aa6b8d09
Reviewed-on: https://skia-review.googlesource.com/8067
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Herb Derby <herb@google.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/tests/ArenaAllocTest.cpp b/tests/ArenaAllocTest.cpp
index 0836b0c49f..c27c202bdb 100644
--- a/tests/ArenaAllocTest.cpp
+++ b/tests/ArenaAllocTest.cpp
@@ -7,6 +7,7 @@
 
 #include "Test.h"
 #include "SkArenaAlloc.h"
+#include "SkRefCnt.h"
 
 namespace {
 
@@ -46,6 +47,15 @@ namespace {
         Node* start;
     };
 
+    struct FooRefCnt : public SkRefCnt {
+        FooRefCnt() : x(-2), y(-3.0f) { created++; }
+        FooRefCnt(int X, float Y) : x(X), y(Y) { created++; }
+        ~FooRefCnt() { destroyed++; }
+
+        int x;
+        float y;
+    };
+
 }
 
 struct WithDtor {
@@ -159,4 +169,19 @@ DEF_TEST(ArenaAlloc, r) {
 
     REPORTER_ASSERT(r, created == 128);
     REPORTER_ASSERT(r, destroyed == 128);
+
+    {
+        created = 0;
+        destroyed = 0;
+        char storage[64];
+        SkArenaAlloc arena{storage};
+
+        sk_sp<FooRefCnt> f = arena.makeSkSp<FooRefCnt>(4, 5.0f);
+        REPORTER_ASSERT(r, f->x == 4);
+        REPORTER_ASSERT(r, f->y == 5.0f);
+        REPORTER_ASSERT(r, created == 1);
+        REPORTER_ASSERT(r, destroyed == 0);
+    }
+    REPORTER_ASSERT(r, created == 1);
+    REPORTER_ASSERT(r, destroyed == 1);
 }