+ # Write out a clone function whether we need one or not, as we use them in moving to rust
+ out_c = out_c + "static void* " + struct_name + "_JCalls_clone(const void* this_arg) {\n"
+ out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
+ out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n"
+ for var in field_vars:
+ if not isinstance(var, ConvInfo):
+ out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->" + var[1] + "->refcnt, 1, memory_order_release);\n"
+ out_c = out_c + "\treturn (void*) this_arg;\n"
+ out_c = out_c + "}\n"
+
+ out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (" + self.c_fn_args_pfx + ", jobject o"
+ for var in field_vars:
+ if isinstance(var, ConvInfo):
+ out_c = out_c + ", " + var.c_ty + " " + var.arg_name
+ else:
+ out_c = out_c + ", jobject " + var[1]
+ out_c = out_c + ") {\n"
+
+ out_c = out_c + "\tjclass c = (*env)->GetObjectClass(env, o);\n"
+ out_c = out_c + "\tCHECK(c != NULL);\n"
+ out_c = out_c + "\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n"
+ out_c = out_c + "\tatomic_init(&calls->refcnt, 1);\n"
+ out_c = out_c + "\tDO_ASSERT((*env)->GetJavaVM(env, &calls->vm) == 0);\n"
+ out_c = out_c + "\tcalls->o = (*env)->NewWeakGlobalRef(env, o);\n"
+
+ for (fn_name, java_meth_descr) in java_meths:
+ if fn_name != "free" and fn_name != "clone":
+ out_c = out_c + "\tcalls->" + fn_name + "_meth = (*env)->GetMethodID(env, c, \"" + fn_name + "\", \"" + java_meth_descr + "\");\n"
+ out_c = out_c + "\tCHECK(calls->" + fn_name + "_meth != NULL);\n"
+
+ for var in field_vars:
+ if isinstance(var, ConvInfo) and var.arg_conv is not None:
+ out_c = out_c + "\n\t" + var.arg_conv.replace("\n", "\n\t") +"\n"
+ out_c = out_c + "\n\t" + struct_name + " ret = {\n"
+ out_c = out_c + "\t\t.this_arg = (void*) calls,\n"
+ for fn_line in field_fns:
+ if fn_line.fn_name != "free" and fn_line.fn_name != "clone":
+ out_c = out_c + "\t\t." + fn_line.fn_name + " = " + fn_line.fn_name + "_jcall,\n"
+ elif fn_line.fn_name == "free":
+ out_c = out_c + "\t\t.free = " + struct_name + "_JCalls_free,\n"
+ else:
+ out_c = out_c + "\t\t.clone = " + struct_name + "_JCalls_clone,\n"
+ for var in field_vars:
+ if isinstance(var, ConvInfo):
+ if var.arg_conv_name is not None:
+ out_c = out_c + "\t\t." + var.arg_name + " = " + var.arg_conv_name + ",\n"
+ out_c = out_c + "\t\t.set_" + var.arg_name + " = NULL,\n"
+ else:
+ out_c = out_c + "\t\t." + var.var_name + " = " + var.var_name + ",\n"
+ out_c = out_c + "\t\t.set_" + var.var_name + " = NULL,\n"
+ else:
+ out_c = out_c + "\t\t." + var[1] + " = " + var[0] + "_init(env, clz, " + var[1] + "),\n"
+ out_c = out_c + "\t};\n"
+ for var in field_vars:
+ if not isinstance(var, ConvInfo):
+ out_c = out_c + "\tcalls->" + var[1] + " = ret." + var[1] + ".this_arg;\n"
+ out_c = out_c + "\treturn ret;\n"
+ out_c = out_c + "}\n"
+
+ out_c = out_c + self.c_fn_ty_pfx + "long " + self.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1new (" + self.c_fn_args_pfx + ", jobject o"
+ for var in field_vars:
+ if isinstance(var, ConvInfo):
+ out_c = out_c + ", " + var.c_ty + " " + var.arg_name
+ else:
+ out_c = out_c + ", jobject " + var[1]
+ out_c = out_c + ") {\n"
+ out_c = out_c + "\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n"
+ out_c = out_c + "\t*res_ptr = " + struct_name + "_init(env, clz, o"
+ for var in field_vars:
+ if isinstance(var, ConvInfo):
+ out_c = out_c + ", " + var.arg_name
+ else:
+ out_c = out_c + ", " + var[1]
+ out_c = out_c + ");\n"
+ out_c = out_c + "\treturn (long)res_ptr;\n"
+ out_c = out_c + "}\n"
+
+ return (out_java, out_java_trait, out_c)
+
+ def trait_struct_inc_refcnt(self, ty_info):
+ base_conv = "\nif (" + ty_info.var_name + "_conv.free == " + ty_info.rust_obj + "_JCalls_free) {\n"
+ base_conv = base_conv + "\t// If this_arg is a JCalls struct, then we need to increment the refcnt in it.\n"
+ base_conv = base_conv + "\t" + ty_info.rust_obj + "_JCalls_clone(" + ty_info.var_name + "_conv.this_arg);\n}"
+ return base_conv
+
+ def map_complex_enum(self, struct_name, variant_list, camel_to_snake):
+ java_hu_type = struct_name.replace("LDK", "")
+ out_java_enum = ""
+ out_java = ""
+ out_c = ""
+
+ out_java_enum += (self.hu_struct_file_prefix)
+ out_java_enum += ("public class " + java_hu_type + " extends CommonBase {\n")
+ out_java_enum += ("\tprivate " + java_hu_type + "(Object _dummy, long ptr) { super(ptr); }\n")
+ out_java_enum += ("\t@Override @SuppressWarnings(\"deprecation\")\n")
+ out_java_enum += ("\tprotected void finalize() throws Throwable {\n")
+ out_java_enum += ("\t\tsuper.finalize();\n")
+ out_java_enum += ("\t\tif (ptr != 0) { bindings." + java_hu_type + "_free(ptr); }\n")
+ out_java_enum += ("\t}\n")
+ out_java_enum += ("\tstatic " + java_hu_type + " constr_from_ptr(long ptr) {\n")
+ out_java_enum += ("\t\tbindings." + struct_name + " raw_val = bindings." + struct_name + "_ref_from_ptr(ptr);\n")
+ java_hu_subclasses = ""
+
+ init_meth_jty_strs = {}
+
+ out_java += ("\tpublic static class " + struct_name + " {\n")
+ out_java += ("\t\tprivate " + struct_name + "() {}\n")
+ for var in variant_list:
+ out_java += ("\t\tpublic final static class " + var.var_name + " extends " + struct_name + " {\n")
+ java_hu_subclasses = java_hu_subclasses + "\tpublic final static class " + var.var_name + " extends " + java_hu_type + " {\n"
+ out_java_enum += ("\t\tif (raw_val.getClass() == bindings." + struct_name + "." + var.var_name + ".class) {\n")
+ out_java_enum += ("\t\t\treturn new " + var.var_name + "(ptr, (bindings." + struct_name + "." + var.var_name + ")raw_val);\n")
+ init_meth_jty_str = ""
+ init_meth_params = ""
+ init_meth_body = ""
+ hu_conv_body = ""
+ for idx, field_ty in enumerate(var.fields):
+ out_java += ("\t\t\tpublic " + field_ty.java_ty + " " + field_ty.arg_name + ";\n")
+ java_hu_subclasses = java_hu_subclasses + "\t\tpublic final " + field_ty.java_hu_ty + " " + field_ty.arg_name + ";\n"
+ if field_ty.to_hu_conv is not None:
+ hu_conv_body = hu_conv_body + "\t\t\t" + field_ty.java_ty + " " + field_ty.arg_name + " = obj." + field_ty.arg_name + ";\n"
+ hu_conv_body = hu_conv_body + "\t\t\t" + field_ty.to_hu_conv.replace("\n", "\n\t\t\t") + "\n"
+ hu_conv_body = hu_conv_body + "\t\t\tthis." + field_ty.arg_name + " = " + field_ty.to_hu_conv_name + ";\n"
+ else:
+ hu_conv_body = hu_conv_body + "\t\t\tthis." + field_ty.arg_name + " = obj." + field_ty.arg_name + ";\n"
+ init_meth_jty_str = init_meth_jty_str + field_ty.java_fn_ty_arg
+ if idx > 0:
+ init_meth_params = init_meth_params + ", "
+ init_meth_params = init_meth_params + field_ty.java_ty + " " + field_ty.arg_name
+ init_meth_body = init_meth_body + "this." + field_ty.arg_name + " = " + field_ty.arg_name + "; "
+ out_java += ("\t\t\t" + var.var_name + "(" + init_meth_params + ") { ")
+ out_java += (init_meth_body)
+ out_java += ("}\n")
+ out_java += ("\t\t}\n")
+ out_java_enum += ("\t\t}\n")
+ java_hu_subclasses = java_hu_subclasses + "\t\tprivate " + var.var_name + "(long ptr, bindings." + struct_name + "." + var.var_name + " obj) {\n\t\t\tsuper(null, ptr);\n"
+ java_hu_subclasses = java_hu_subclasses + hu_conv_body
+ java_hu_subclasses = java_hu_subclasses + "\t\t}\n\t}\n"
+ init_meth_jty_strs[var.var_name] = init_meth_jty_str
+ out_java += ("\t\tstatic native void init();\n")
+ out_java += ("\t}\n")
+ out_java_enum += ("\t\tassert false; return null; // Unreachable without extending the (internal) bindings interface\n\t}\n\n")
+ out_java_enum += (java_hu_subclasses)
+ out_java += ("\tstatic { " + struct_name + ".init(); }\n")
+ out_java += ("\tpublic static native " + struct_name + " " + struct_name + "_ref_from_ptr(long ptr);\n");
+
+ out_c += (self.c_complex_enum_pfx(struct_name, [x.var_name for x in variant_list], init_meth_jty_strs))
+
+ out_c += (self.c_fn_ty_pfx + self.c_complex_enum_pass_ty(struct_name) + " " + self.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1ref_1from_1ptr (" + self.c_fn_args_pfx + ", " + self.ptr_c_ty + " ptr) {\n")
+ out_c += ("\t" + struct_name + " *obj = (" + struct_name + "*)ptr;\n")
+ out_c += ("\tswitch(obj->tag) {\n")
+ for var in variant_list:
+ out_c += ("\t\tcase " + struct_name + "_" + var.var_name + ": {\n")
+ c_params = []
+ for idx, field_map in enumerate(var.fields):
+ if field_map.ret_conv is not None:
+ out_c += ("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t"))
+ out_c += ("obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name)
+ out_c += (field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n")
+ c_params.append(field_map.ret_conv_name)
+ else:
+ c_params.append("obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name)
+ out_c += ("\t\t\treturn " + self.c_constr_native_complex_enum(struct_name, var.var_name, c_params) + ";\n")
+ out_c += ("\t\t}\n")
+ out_c += ("\t\tdefault: abort();\n")
+ out_c += ("\t}\n}\n")
+ out_java_enum += ("}\n")
+ return (out_java, out_java_enum, out_c)
+
+ def map_opaque_struct(self, struct_name):
+ out_opaque_struct_human = ""
+ out_opaque_struct_human += self.hu_struct_file_prefix
+ out_opaque_struct_human += ("public class " + struct_name.replace("LDK","") + " extends CommonBase")
+ if struct_name.startswith("LDKLocked"):
+ out_opaque_struct_human += (" implements AutoCloseable")
+ out_opaque_struct_human += (" {\n")
+ out_opaque_struct_human += ("\t" + struct_name.replace("LDK", "") + "(Object _dummy, long ptr) { super(ptr); }\n")
+ if struct_name.startswith("LDKLocked"):
+ out_opaque_struct_human += ("\t@Override public void close() {\n")
+ else:
+ out_opaque_struct_human += ("\t@Override @SuppressWarnings(\"deprecation\")\n")
+ out_opaque_struct_human += ("\tprotected void finalize() throws Throwable {\n")
+ out_opaque_struct_human += ("\t\tsuper.finalize();\n")
+ out_opaque_struct_human += ("\t\tif (ptr != 0) { bindings." + struct_name.replace("LDK","") + "_free(ptr); }\n")
+ out_opaque_struct_human += ("\t}\n\n")
+ return out_opaque_struct_human