From 719e2a8f67090e2c063cbefe2a613aa63205284b Mon Sep 17 00:00:00 2001
From: Matt Corallo <git@bluematt.me>
Date: Fri, 29 Jan 2021 23:23:03 -0500
Subject: [PATCH] Add util methods file for methods not associated with a known
 struct

---
 genbindings.py        | 7 +++++++
 java_strings.py       | 7 +++++++
 typescript_strings.py | 3 +++
 3 files changed, 17 insertions(+)

diff --git a/genbindings.py b/genbindings.py
index acc757b1..eefc9937 100755
--- a/genbindings.py
+++ b/genbindings.py
@@ -426,8 +426,13 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java:
         else:
             write_c(out_c_delta)
 
+        out_java_struct = None
         if ("LDK" + struct_meth in opaque_structs or "LDK" + struct_meth in trait_structs) and not is_free:
             out_java_struct = open(f"{sys.argv[3]}/structs/{struct_meth}{consts.file_ext}", "a")
+        elif method_name.startswith("C2Tuple_") and method_name.endswith("_read"):
+            struct_meth = method_name.rsplit("_", 1)[0]
+            out_java_struct = open(f"{sys.argv[3]}/structs/UtilMethods{consts.file_ext}", "a")
+        if out_java_struct is not None:
             out_java_struct.write(out_java_struct_delta)
 
     def map_unitary_enum(struct_name, field_lines):
@@ -905,3 +910,5 @@ with open(sys.argv[4], "w") as out_c:
     out_c.write(consts.c_file_pfx)
     out_c.write(consts.init_str())
     out_c.write(c_file)
+with open(f"{sys.argv[3]}/structs/UtilMethods{consts.file_ext}", "a") as util:
+    util.write(consts.util_fn_sfx)
diff --git a/java_strings.py b/java_strings.py
index e1ea1e86..9c8b2b94 100644
--- a/java_strings.py
+++ b/java_strings.py
@@ -51,6 +51,13 @@ public class bindings {
 
         self.bindings_footer = "}\n"
 
+        self.util_fn_pfx = """package org.ldk.structs;
+import org.ldk.impl.bindings;
+import java.util.Arrays;
+
+public class UtilMethods {
+"""
+        self.util_fn_sfx = "}"
         self.common_base = """package org.ldk.structs;
 import java.util.LinkedList;
 class CommonBase {
diff --git a/typescript_strings.py b/typescript_strings.py
index cb1f3828..82412e01 100644
--- a/typescript_strings.py
+++ b/typescript_strings.py
@@ -82,6 +82,9 @@ public static native long new_empty_slice_vec();
         }
         """
 
+        self.util_fn_pfx = ""
+        self.util_fn_sfx = ""
+
         self.common_base = """
             export default class CommonBase {
                 ptr: number;
-- 
2.39.5