Bindings updates

[ldk-java] / src / main / java / org / ldk / structs / Result_NetworkGraphDecodeErrorZ.java

diff --git a/src/main/java/org/ldk/structs/Result_NetworkGraphDecodeErrorZ.java b/src/main/java/org/ldk/structs/Result_NetworkGraphDecodeErrorZ.java
index 2d3f603d9c6168cc3ffca6e2e2fc7958c1bd998d..a475625d0c7baea32fce2758727c19c0428d00a9 100644 (file)
--- a/src/main/java/org/ldk/structs/Result_NetworkGraphDecodeErrorZ.java
+++ b/src/main/java/org/ldk/structs/Result_NetworkGraphDecodeErrorZ.java
@@ -25,11 +25,20 @@ public class Result_NetworkGraphDecodeErrorZ extends CommonBase {
                        super(_dummy, ptr);
                        long res = bindings.LDKCResult_NetworkGraphDecodeErrorZ_get_ok(ptr);
                        NetworkGraph res_hu_conv = new NetworkGraph(null, res);
+                       res_hu_conv.ptrs_to.add(this);
                        this.res = res_hu_conv;
                }
                public Result_NetworkGraphDecodeErrorZ_OK(NetworkGraph res) {
                        this(null, bindings.CResult_NetworkGraphDecodeErrorZ_ok(res == null ? 0 : res.ptr & ~1));
                        this.ptrs_to.add(res);
+                       // Due to rust's strict-ownership memory model, in some cases we need to "move"
+                       // an object to pass exclusive ownership to the function being called.
+                       // In most cases, we avoid this being visible in GC'd languages by cloning the object
+                       // at the FFI layer, creating a new object which Rust can claim ownership of
+                       // However, in some cases (eg here), there is no way to clone an object, and thus
+                       // we actually have to pass full ownership to Rust.
+                       // Thus, after this call, res is reset to null and is now a dummy object.
+                       res.ptr = 0;
                }
        }
 
@@ -39,6 +48,7 @@ public class Result_NetworkGraphDecodeErrorZ extends CommonBase {
                        super(_dummy, ptr);
                        long err = bindings.LDKCResult_NetworkGraphDecodeErrorZ_get_err(ptr);
                        DecodeError err_hu_conv = new DecodeError(null, err);
+                       err_hu_conv.ptrs_to.add(this);
                        this.err = err_hu_conv;
                }
                public Result_NetworkGraphDecodeErrorZ_Err(DecodeError err) {