Revert "Java: Avoid dangerous writes via casted pointers"

[libsigrok.git] / bindings / java / org / sigrok / core / classes / classes.i

diff --git a/bindings/java/org/sigrok/core/classes/classes.i b/bindings/java/org/sigrok/core/classes/classes.i
index c5d9b27b6a36478d679156d2c3324931bc5ec5ff..5a020d7ec3b960837f676392485a5b91bdeb34c1 100644 (file)
--- a/bindings/java/org/sigrok/core/classes/classes.i
+++ b/bindings/java/org/sigrok/core/classes/classes.i
@@ -193,6 +193,44 @@ MAP_COMMON(const sigrok::ConfigKey *, Glib::VariantBase, ConfigKey, Variant)
   }
 }
 
+/* Specialisation for ConfigKey->set<Capability> maps */
+
+MAP_COMMON(const sigrok::ConfigKey *, std::set<enum sigrok::Capability>,
+  ConfigKey, java.util.Set<Capability>)
+
+%typemap(jni) std::map<const sigrok::ConfigKey *, std::set<enum sigrok::Capability> > "jobject"
+%typemap(jtype) std::map<const sigrok::ConfigKey *, std::set<enum sigrok::Capability> >
+  "java.util.Map<ConfigKey,java.util.Set<Capability>>"
+
+%typemap(out) std::map<const sigrok::ConfigKey *, std::set<enum sigrok::Capability> > {
+  jclass HashMap = jenv->FindClass("java/util/HashMap");
+  jmethodID HashMap_init = jenv->GetMethodID(HashMap, "<init>", "()V");
+  jmethodID HashMap_put = jenv->GetMethodID(HashMap, "put",
+    "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
+  jclass HashSet = jenv->FindClass("java/util/HashSet");
+  jmethodID HashSet_init = jenv->GetMethodID(HashSet, "<init>", "()V");
+  jmethodID HashSet_add = jenv->GetMethodID(HashSet, "add",
+    "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
+  jclass ConfigKey = jenv->FindClass("org/sigrok/core/classes/ConfigKey");
+  jmethodID ConfigKey_init = jenv->GetMethodID(ConfigKey, "<init>", "(JZ)V");
+  jclass Capability = jenv->FindClass("org/sigrok/core/classes/Capability");
+  jmethodID Capability_swigToEnum = jenv->GetStaticMethodID(Capability,
+    "swigToEnum", "(I)Lorg/sigrok/core/classes/Capability;");
+  $result = jenv->NewObject(HashMap, HashMap_init);
+  jlong key;
+  for (auto map_entry : $1)
+  {
+    *(const sigrok::ConfigKey **) &key = map_entry.first;
+    jobject value = jenv->NewObject(HashSet, HashSet_init);
+    for (auto &set_entry : map_entry.second)
+      jenv->CallObjectMethod(value, HashSet_add,
+        jenv->CallStaticObjectMethod(Capability,
+          Capability_swigToEnum, set_entry));
+    jenv->CallObjectMethod($result, HashMap_put,
+      jenv->NewObject(ConfigKey, ConfigKey_init, key, false), value);
+  }
+}
+
 /* Pass JNIEnv parameter to C++ extension methods requiring it. */
 
 %typemap(in, numinputs=0) JNIEnv * %{