cppuhelper: implement environment mapping for constructor functions

ae3a0c8da50b36db395984637f5ad74d3b4887bc unfortunately forgot to
implement mapping between UNO environments for constructor functions
in the UNO service manager, and due to the many componennt conversions
to constructor functions since then, the log UNO purpose environment
has become mostly useless.

Save the environment, create a closure today!

https://wiki.openoffice.org/wiki/Uno/Spec/Log_Environment

Change-Id: Idc03b5ed9529da8e81cd91efe50cbeceffa2b247
Reviewed-on: https://gerrit.libreoffice.org/33060
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Stahl <mstahl@redhat.com>

1 files changed, 17 insertions, 28 deletions

diff --git a/cppuhelper/source/servicemanager.cxx b/cppuhelper/source/servicemanager.cxx
index 780fe02ad70b..6d2321c3b9b1 100644
--- a/cppuhelper/source/servicemanager.cxx
+++ b/cppuhelper/source/servicemanager.cxx
@@ -686,9 +686,9 @@ cppuhelper::ServiceManager::Data::Implementation::createInstance(
     bool singletonRequest)
 {
     css::uno::Reference<css::uno::XInterface> inst;
-    if (constructor != nullptr) {
+    if (constructor) {
         inst.set(
-            (*constructor)(context.get(), css::uno::Sequence<css::uno::Any>()),
+            constructor(context.get(), css::uno::Sequence<css::uno::Any>()),
             SAL_NO_ACQUIRE);
     } else if (factory1.is()) {
             inst = factory1->createInstanceWithContext(context);
@@ -706,8 +706,8 @@ cppuhelper::ServiceManager::Data::Implementation::createInstanceWithArguments(
     bool singletonRequest, css::uno::Sequence<css::uno::Any> const & arguments)
 {
     css::uno::Reference<css::uno::XInterface> inst;
-    if (constructor != nullptr) {
-        inst.set((*constructor)(context.get(), arguments), SAL_NO_ACQUIRE);
+    if (constructor) {
+        inst.set(constructor(context.get(), arguments), SAL_NO_ACQUIRE);
         //HACK: The constructor will either observe arguments and return inst
         // that does not implement XInitialization (or null), or ignore
         // arguments and return inst that implements XInitialization; this
@@ -797,7 +797,7 @@ void cppuhelper::ServiceManager::loadImplementation(
             "Cannot expand URI" + implementation->info->uri + ": " + e.Message,
             static_cast< cppu::OWeakObject * >(this));
     }
-    cppuhelper::ImplementationConstructorFn * ctor = nullptr;
+    cppuhelper::WrapperConstructorFn ctor;
     css::uno::Reference< css::uno::XInterface > f0;
     // Special handling of SharedLibrary loader, with support for environment,
     // constructor, and prefix arguments:
@@ -808,27 +808,8 @@ void cppuhelper::ServiceManager::loadImplementation(
             uri, implementation->info->environment,
             implementation->info->prefix, implementation->info->name,
             implementation->info->constructor, this, &ctor, &f0);
-        if (ctor != nullptr) {
+        if (ctor) {
             assert(!implementation->info->environment.isEmpty());
-            css::uno::Environment curEnv(css::uno::Environment::getCurrent());
-            if (!curEnv.is()) {
-                throw css::uno::DeploymentException(
-                    "cannot get current environment",
-                    css::uno::Reference<css::uno::XInterface>());
-            }
-            css::uno::Environment env(
-                cppuhelper::detail::getEnvironment(
-                    implementation->info->environment,
-                    implementation->info->name));
-            if (!env.is()) {
-                throw css::uno::DeploymentException(
-                    ("cannot get environment "
-                     + implementation->info->environment),
-                    css::uno::Reference<css::uno::XInterface>());
-            }
-            if (curEnv.get() != env.get()) {
-                std::abort();//TODO
-            }
         }
     } else {
         SAL_WARN_IF(
@@ -864,7 +845,7 @@ void cppuhelper::ServiceManager::loadImplementation(
     }
     css::uno::Reference<css::lang::XSingleComponentFactory> f1;
     css::uno::Reference<css::lang::XSingleServiceFactory> f2;
-    if (ctor == nullptr) {
+    if (!ctor) {
         f1.set(f0, css::uno::UNO_QUERY);
         if (!f1.is()) {
             f2.set(f0, css::uno::UNO_QUERY);
@@ -1978,7 +1959,15 @@ void cppuhelper::ServiceManager::preloadImplementations() {
                 else
                 {
                     // get function symbol component factory
-                    fpFactory = aModule.getFunctionSymbol(iterator->second->info->constructor);
+                    aTargetEnv = cppuhelper::detail::getEnvironment(iterator->second->info->environment, iterator->second->info->name);
+                    if (aSourceEnv.get() == aTargetEnv.get())
+                    {
+                        fpFactory = aModule.getFunctionSymbol(iterator->second->info->constructor);
+                    }
+                    else
+                    {
+                        fpFactory = nullptr;
+                    }
                 }
 
                 css::uno::Reference<css::lang::XSingleComponentFactory> xSCFactory;
@@ -2002,7 +1991,7 @@ void cppuhelper::ServiceManager::preloadImplementations() {
                 }
 
                 if (!iterator->second->info->constructor.isEmpty() && fpFactory)
-                    iterator->second->constructor = reinterpret_cast<ImplementationConstructorFn *>(fpFactory);
+                    iterator->second->constructor = WrapperConstructorFn(reinterpret_cast<ImplementationConstructorFn *>(fpFactory));
 
                 iterator->second->factory1 = xSCFactory;
                 iterator->second->factory2 = xSSFactory;