DRTVWR-587: Fix LL::apply(function, LLSD array).

We define a specialization of LLSDParam<const char*> to support passing an
LLSD object to a const char* function parameter. Needless to remark, passing
object.asString().c_str() would be Bad: destroying the temporary std::string
returned by asString() would immediately invalidate the pointer returned by
its c_str(). But when you pass LLSDParam<const char*>(object) as the
parameter, that specialization itself stores the std::string so the c_str()
pointer remains valid as long as the LLSDParam object does.

Then there's LLSDParam<LLSD>, used when we don't have the parameter type
available to select the LLSDParam specialization. LLSDParam<LLSD> defines a
templated conversion operator T() that constructs an LLSDParam<T> to provide
the actual parameter value. So far, so good.

The trouble was with the implementation of LLSDParam<LLSD>: it constructed a
_temporary_ LLSDParam<T>, implicitly called its operator T() and immediately
destroyed it. Destroying LLSDParam<const char*> destroyed its stored string,
thus invalidating the c_str() pointer before the target function was entered.

Instead, make LLSDParam<LLSD>::operator T() capture each LLSDParam<T> it
constructs, extending its lifespan to the lifespan of the LLSDParam<LLSD>
instance. For this, derive each LLSDParam specialization from LLSDParamBase, a
trivial base class that simply establishes the virtual destructor. We can then
capture any specialization as a pointer to LLSDParamBase.

Also restore LazyEventAPI tests on Mac.

1 files changed, 4 insertions, 11 deletions

diff --git a/indra/llcommon/tests/lleventdispatcher_test.cpp b/indra/llcommon/tests/lleventdispatcher_test.cpp
index 40643172ee..b0c532887c 100644
--- a/indra/llcommon/tests/lleventdispatcher_test.cpp
+++ b/indra/llcommon/tests/lleventdispatcher_test.cpp
@@ -178,6 +178,7 @@ struct Vars
     /*-------- Arbitrary-params (non-const, const, static) methods ---------*/
     void methodna(NPARAMSa)
     {
+        DEBUG;
         // Because our const char* param cp might be NULL, and because we
         // intend to capture the value in a std::string, have to distinguish
         // between the NULL value and any non-NULL value. Use a convention
@@ -189,7 +190,7 @@ struct Vars
         else
             vcp = std::string("'") + cp + "'";
 
-        debug()("methodna(", b,
+        this->debug()("methodna(", b,
               ", ", i,
               ", ", f,
               ", ", d,
@@ -227,7 +228,8 @@ struct Vars
 
     void cmethodna(NPARAMSa) const
     {
-        debug()('c', NONL);
+        DEBUG;
+        this->debug()('c', NONL);
         const_cast<Vars*>(this)->methodna(NARGSa);
     }
 
@@ -1200,9 +1202,6 @@ namespace tut
     void object::test<20>()
     {
         set_test_name("call array-style functions with right-size arrays");
-#if defined(_MSC_VER)
-        skip("This test fails on VS");
-#endif
         std::vector<U8> binary;
         for (size_t h(0x01), i(0); i < 5; h+= 0x22, ++i)
         {
@@ -1241,9 +1240,6 @@ namespace tut
     void object::test<21>()
     {
         set_test_name("verify that passing LLSD() to const char* sends NULL");
-#if defined(_MSC_VER)
-        skip("This test fails on VS");
-#endif
 
         ensure_equals("Vars::cp init", v.cp, "");
         work("methodna_map_mdft", LLSDMap("cp", LLSD()));
@@ -1257,9 +1253,6 @@ namespace tut
     template<> template<>
     void object::test<22>()
     {
-#if defined(_MSC_VER)
-        skip("This test fails on VS");
-#endif
         set_test_name("call map-style functions with (full | oversized) (arrays | maps)");
         const char binary[] = "\x99\x88\x77\x66\x55";
         LLSD array_full(LLSDMap