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-rw-r--r--base/bind_unittest.cc27
1 files changed, 27 insertions, 0 deletions
diff --git a/base/bind_unittest.cc b/base/bind_unittest.cc
index 654a277..372523b 100644
--- a/base/bind_unittest.cc
+++ b/base/bind_unittest.cc
@@ -199,10 +199,18 @@ void RefArgSet(int &n) {
n = 2;
}
+void PtrArgSet(int *n) {
+ *n = 2;
+}
+
int FunctionWithWeakFirstParam(WeakPtr<NoRef> o, int n) {
return n;
}
+void TakesACallback(const Closure& callback) {
+ callback.Run();
+}
+
class BindTest : public ::testing::Test {
public:
BindTest() {
@@ -284,6 +292,25 @@ TEST_F(BindTest, CurryingTest) {
EXPECT_EQ(63, c0.Run());
}
+// Test that currying the rvalue result of another Bind() works correctly.
+// - rvalue should be usable as argument to Bind().
+// - multiple runs of resulting Callback remain valid.
+TEST_F(BindTest, CurryingRvalueResultOfBind) {
+ int n = 0;
+ Closure cb = base::Bind(&TakesACallback, base::Bind(&PtrArgSet, &n));
+
+ // If we implement Bind() such that the return value has auto_ptr-like
+ // semantics, the second call here will fail because ownership of
+ // the internal BindState<> would have been transfered to a *temporary*
+ // constructon of a Callback object on the first call.
+ cb.Run();
+ EXPECT_EQ(2, n);
+
+ n = 0;
+ cb.Run();
+ EXPECT_EQ(2, n);
+}
+
// Function type support.
// - Normal function.
// - Normal function bound with non-refcounted first argument.