+ opaque_ret_conv_suf = ";\n"
+ if not holds_ref and ty_info.is_ptr and (ty_info.rust_obj.replace("LDK", "") + "_clone") in clone_fns: # is_ptr, not holds_ref implies passing a pointed-to value to java, which needs copied
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "if (" + ty_info.var_name + "->inner != NULL)\n"
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "\t" + ty_info.var_name + "_var = " + ty_info.rust_obj.replace("LDK", "") + "_clone(" + ty_info.var_name + ");\n"
+ elif not holds_ref and ty_info.is_ptr:
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "// Warning: we may need a move here but can't clone!\n"
+
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "CHECK((((long)" + ty_info.var_name + "_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.\n"
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "CHECK((((long)&" + ty_info.var_name + "_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.\n"
+ if holds_ref:
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner & ~1;"
+ else:
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner;\n"
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "if (" + ty_info.var_name + "_var.is_owned) {\n"
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "\t" + ty_info.var_name + "_ref |= 1;\n"
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "}"
+
+ if ty_info.is_ptr:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = opaque_arg_conv, arg_conv_name = "&" + ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = (ty_info.rust_obj + " " + ty_info.var_name + "_var = *", opaque_ret_conv_suf),
+ ret_conv_name = ty_info.var_name + "_ref",
+ to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");",
+ to_hu_conv_name = ty_info.var_name + "_hu_conv",
+ from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")"))
+ else:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = opaque_arg_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = (ty_info.rust_obj + " " + ty_info.var_name + "_var = ", opaque_ret_conv_suf),
+ ret_conv_name = ty_info.var_name + "_ref",
+ to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");",
+ to_hu_conv_name = ty_info.var_name + "_hu_conv",
+ from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")"))
+
+ if not ty_info.is_ptr:
+ if ty_info.rust_obj in unitary_enums:
+ (ret_pfx, ret_sfx) = consts.c_unitary_enum_to_native_call(ty_info)
+ (arg_pfx, arg_sfx) = consts.native_unitary_enum_to_c_call(ty_info)
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv = " + arg_pfx + ty_info.var_name + arg_sfx + ";",
+ arg_conv_name = ty_info.var_name + "_conv",
+ arg_conv_cleanup = None,
+ ret_conv = (ty_info.c_ty + " " + ty_info.var_name + "_conv = " + ret_pfx, ret_sfx + ";"),
+ ret_conv_name = ty_info.var_name + "_conv", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
+ base_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv = *(" + ty_info.rust_obj + "*)" + ty_info.var_name + ";"
+ if ty_info.rust_obj in trait_structs:
+ if not is_free:
+ needs_full_clone = not is_free and (not ty_info.is_ptr and not holds_ref or ty_info.requires_clone == True) and ty_info.requires_clone != False
+ if needs_full_clone and (ty_info.rust_obj.replace("LDK", "") + "_clone") in clone_fns:
+ base_conv = base_conv + "\n" + ty_info.var_name + "_conv = " + ty_info.rust_obj.replace("LDK", "") + "_clone(" + ty_info.var_name + ");"
+ else:
+ base_conv = 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}"
+ if needs_full_clone:
+ base_conv = base_conv + "// Warning: we may need a move here but can't do a full clone!\n"
+
+ else:
+ base_conv = base_conv + "\n" + "FREE((void*)" + ty_info.var_name + ");"
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = (ty_info.rust_obj + "* ret = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*ret = ", ";"),
+ ret_conv_name = "(long)ret",
+ to_hu_conv = ty_info.java_hu_ty + " ret_hu_conv = new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");\nret_hu_conv.ptrs_to.add(this);",
+ to_hu_conv_name = "ret_hu_conv",
+ from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")"))
+ if ty_info.rust_obj != "LDKu8slice":
+ # Don't bother free'ing slices passed in - Rust doesn't auto-free the
+ # underlying unlike Vecs, and it gives Java more freedom.
+ base_conv = base_conv + "\nFREE((void*)" + ty_info.var_name + ");";
+ if ty_info.rust_obj in complex_enums:
+ ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";")
+ if not holds_ref:
+ ret_conv = (ty_info.rust_obj + " *" + ty_info.var_name + "_copy = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n", "")
+ if ty_info.requires_clone == True: # Set in object array mapping
+ if (ty_info.rust_obj.replace("LDK", "") + "_clone") in clone_fns:
+ ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&", ");\n")
+ else:
+ ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = ", "; // XXX: We likely need to clone here, but no _clone fn is available!\n")
+ else:
+ ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = ", ";\n")
+ ret_conv = (ret_conv[0], ret_conv[1] + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_copy;")
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ret_conv, ret_conv_name = ty_info.var_name + "_ref",
+ to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = " + ty_info.java_hu_ty + ".constr_from_ptr(" + ty_info.var_name + ");\n" + ty_info.var_name + "_hu_conv.ptrs_to.add(this);",
+ to_hu_conv_name = ty_info.var_name + "_hu_conv", from_hu_conv = (ty_info.var_name + ".ptr", ""))
+ if ty_info.rust_obj in result_types:
+ if holds_ref:
+ # If we're trying to return a ref, we have to clone.
+ # We just blindly assume its implemented and let the compiler fail if its not.
+ ret_conv = (ty_info.rust_obj + "* " + ty_info.var_name + "_conv = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*" + ty_info.var_name + "_conv = ", ";")
+ ret_conv = (ret_conv[0], ret_conv[1] + "\n*" + ty_info.var_name + "_conv = " + ty_info.rust_obj.replace("LDK", "") + "_clone(" + ty_info.var_name + "_conv);")
+ else:
+ ret_conv = (ty_info.rust_obj + "* " + ty_info.var_name + "_conv = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*" + ty_info.var_name + "_conv = ", ";")
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ret_conv, ret_conv_name = "(long)" + ty_info.var_name + "_conv",
+ to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = " + ty_info.java_hu_ty + ".constr_from_ptr(" + ty_info.var_name + ");",
+ to_hu_conv_name = ty_info.var_name + "_hu_conv", from_hu_conv = (ty_info.var_name + " != null ? " + ty_info.var_name + ".ptr : 0", ""))
+ if ty_info.rust_obj in tuple_types:
+ from_hu_conv = "bindings." + tuple_types[ty_info.rust_obj][1].replace("LDK", "") + "_new("
+ to_hu_conv_pfx = ""
+ to_hu_conv_sfx = ty_info.java_hu_ty + " " + ty_info.var_name + "_conv = new " + ty_info.java_hu_ty + "("
+ clone_ret_str = ""
+ for idx, conv in enumerate(tuple_types[ty_info.rust_obj][0]):
+ if idx != 0:
+ to_hu_conv_sfx = to_hu_conv_sfx + ", "
+ from_hu_conv = from_hu_conv + ", "
+ conv.var_name = ty_info.var_name + "_" + chr(idx + ord("a"))
+ conv_map = map_type_with_info(conv, False, None, is_free, holds_ref)
+ to_hu_conv_pfx = to_hu_conv_pfx + conv.java_ty + " " + ty_info.var_name + "_" + chr(idx + ord("a")) + " = " + "bindings." + tuple_types[ty_info.rust_obj][1] + "_get_" + chr(idx + ord("a")) + "(" + ty_info.var_name + ");\n"
+ if conv_map.to_hu_conv is not None:
+ to_hu_conv_pfx = to_hu_conv_pfx + conv_map.to_hu_conv + ";\n"
+ to_hu_conv_sfx = to_hu_conv_sfx + conv_map.to_hu_conv_name
+ else:
+ to_hu_conv_sfx = to_hu_conv_sfx + ty_info.var_name + "_" + chr(idx + ord("a"))
+ if conv_map.from_hu_conv is not None:
+ from_hu_conv = from_hu_conv + conv_map.from_hu_conv[0].replace(ty_info.var_name + "_" + chr(idx + ord("a")), ty_info.var_name + "." + chr(idx + ord("a")))
+ if conv_map.from_hu_conv[1] != "":
+ from_hu_conv = from_hu_conv + "/*XXX: " + conv_map.from_hu_conv[1] + "*/"
+ else:
+ from_hu_conv = from_hu_conv + ty_info.var_name + "." + chr(idx + ord("a"))
+
+ if conv.is_native_primitive:
+ pass
+ elif (conv_map.rust_obj.replace("LDK", "") + "_clone") in clone_fns:
+ accessor = ty_info.var_name + "_ref->" + chr(idx + ord("a"))
+ clone_ret_str = clone_ret_str + "\n" + accessor + " = " + conv_map.rust_obj.replace("LDK", "") + "_clone(&" + accessor + ");"
+ else:
+ clone_ret_str = clone_ret_str + "\n// XXX: We likely need to clone here, but no _clone fn is available for " + conv_map.java_hu_ty
+ if not ty_info.is_ptr and not holds_ref:
+ ret_conv = (ty_info.rust_obj + "* " + ty_info.var_name + "_ref = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*" + ty_info.var_name + "_ref = ", ";")
+ if not is_free and (not ty_info.is_ptr and not holds_ref or ty_info.requires_clone == True) and ty_info.requires_clone != False:
+ ret_conv = (ret_conv[0], ret_conv[1] + clone_ret_str)
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ret_conv,
+ ret_conv_name = "(long)" + ty_info.var_name + "_ref",
+ to_hu_conv = to_hu_conv_pfx + to_hu_conv_sfx + ");", to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = (from_hu_conv + ")", ""))
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";"), ret_conv_name = ty_info.var_name + "_ref",
+ to_hu_conv = to_hu_conv_pfx + to_hu_conv_sfx + ");", to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = (from_hu_conv + ")", ""))
+
+ # The manually-defined types - TxOut and Transaction
+ assert ty_info.rust_obj == "LDKTxOut"
+ if not ty_info.is_ptr and not holds_ref:
+ ret_conv = ("LDKTxOut* " + ty_info.var_name + "_ref = MALLOC(sizeof(LDKTxOut), \"LDKTxOut\");\n*" + ty_info.var_name + "_ref = ", ";")
+ else:
+ ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";")
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ret_conv, ret_conv_name = "(long)" + ty_info.var_name + "_ref",
+ to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_conv = new " +ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");",
+ to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = (ty_info.var_name + ".ptr", ""))
+ elif ty_info.is_ptr:
+ assert(not is_free)
+ if ty_info.rust_obj in complex_enums:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
+ arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name,
+ to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = " + ty_info.java_hu_ty + ".constr_from_ptr(" + ty_info.var_name + ");",
+ to_hu_conv_name = ty_info.var_name + "_hu_conv",
+ from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")"))
+ elif ty_info.rust_obj in trait_structs:
+ if ty_info.rust_obj.replace("LDK", "") + "_clone" in clone_fns:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
+ arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = (ty_info.rust_obj + " *" + ty_info.var_name + "_clone = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n" +
+ "*" + ty_info.var_name + "_clone = " + ty_info.rust_obj.replace("LDK", "") + "_clone(", ");"),
+ ret_conv_name = "(long)" + ty_info.var_name + "_clone",
+ to_hu_conv = ty_info.java_hu_ty + " ret_hu_conv = new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");\nret_hu_conv.ptrs_to.add(this);",
+ to_hu_conv_name = "ret_hu_conv",
+ from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")"))
+ else:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
+ arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name,
+ to_hu_conv = ty_info.java_hu_ty + " ret_hu_conv = new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");\nret_hu_conv.ptrs_to.add(this);",
+ to_hu_conv_name = "ret_hu_conv",
+ from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")"))
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
+ arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name,
+ to_hu_conv = "TODO 3", to_hu_conv_name = None, from_hu_conv = None) # its a pointer, no conv needed
+ assert False # We should have handled every case by now.