From: Matt Corallo <git@bluematt.me>
Date: Wed, 23 Mar 2022 18:44:04 +0000 (+0000)
Subject: Don't assume from-var conversion in opaque ret conv
X-Git-Tag: v0.0.105.1~1^2~5
X-Git-Url: http://git.bitcoin.ninja/?a=commitdiff_plain;h=92e57fa5be658e4ed18cc3126c645cdc5ae7895d;p=ldk-java

Don't assume from-var conversion in opaque ret conv

When we do a ret-conv of an opaque struct, don't assume that the
variable as-parsed exists, instead use the variable that's being
created in the ret-conv string if we need to clone.
---

diff --git a/gen_type_mapping.py b/gen_type_mapping.py
index 0b0e1359..d3d00d28 100644
--- a/gen_type_mapping.py
+++ b/gen_type_mapping.py
@@ -309,7 +309,7 @@ class TypeMappingGenerator:
                     opaque_ret_conv_suf += "if ((uintptr_t)" + ty_info.var_name + "_var.inner > 4096) {\n"
                     indent = "\t"
                 if not holds_ref and ty_info.is_ptr and (ty_info.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns: # is_ptr, not holds_ref implies passing a pointed-to value to java, which needs copied
-                    opaque_ret_conv_suf += indent + ty_info.var_name + "_var = " + ty_info.rust_obj.replace("LDK", "") + "_clone(" + ty_info.var_name + ");\n"
+                    opaque_ret_conv_suf += indent + ty_info.var_name + "_var = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&" + ty_info.var_name + "_var);\n"
                 elif not holds_ref and ty_info.is_ptr:
                     opaque_ret_conv_suf += indent + "// WARNING: we may need a move here but no clone is available for " + ty_info.rust_obj + "\n"