Remove args_known and fix `(void)` parsing (duh, its no arguments)

[ldk-java] / gen_type_mapping.py

diff --git a/gen_type_mapping.py b/gen_type_mapping.py
index e6f7514e7ebda341aff6dc1baa7c4d7d0ee5c4c8..583ddc11498d42c0cf24fc1ec9d8a562a684bb50 100644 (file)
--- a/gen_type_mapping.py
+++ b/gen_type_mapping.py
@@ -190,10 +190,19 @@ class TypeMappingGenerator:
                 if subty.to_hu_conv is not None:
                     to_hu_conv = self.consts.var_decl_statement(self.consts.c_type_map["uint32_t"][0], conv_name + "_len", self.consts.get_java_arr_len(arr_name)) + ";\n"
                     to_hu_conv += self.consts.var_decl_statement(ty_info.java_hu_ty, conv_name + "_arr", self.consts.constr_hu_array(ty_info, conv_name + "_len"))
-                    to_hu_conv += ";\n" + self.consts.for_n_in_range(idxc, "0", conv_name + "_len") + "\n"
-                    to_hu_conv += "\t" + self.consts.var_decl_statement(subty.java_ty, conv_name, self.consts.get_java_arr_elem(subty, arr_name, idxc)) + ";\n"
-                    to_hu_conv += "\t" + subty.to_hu_conv.replace("\n", "\n\t") + "\n"
-                    to_hu_conv += "\t" + conv_name + "_arr[" + idxc + "] = " + subty.to_hu_conv_name + ";\n}"
+                    to_hu_conv += ";\n"
+                    pfx = ""
+                    if is_nullable:
+                        to_hu_conv += "if (" + arr_name + " != null) {\n"
+                        pfx = "\t"
+                    to_hu_conv += pfx + self.consts.for_n_in_range(idxc, "0", conv_name + "_len") + "\n"
+
+                    to_hu_conv += pfx + "\t" + self.consts.var_decl_statement(subty.java_ty, conv_name, self.consts.get_java_arr_elem(subty, arr_name, idxc)) + ";\n"
+                    to_hu_conv += pfx + "\t" + subty.to_hu_conv.replace("\n", "\n\t" + pfx) + "\n"
+                    to_hu_conv += pfx + "\t" + conv_name + "_arr[" + idxc + "] = " + subty.to_hu_conv_name + ";\n"
+                    to_hu_conv += pfx + "}"
+                    if is_nullable:
+                        to_hu_conv += "\n}"
                     cleanup = self.consts.cleanup_converted_native_array(ty_info, arr_name)
                     if cleanup is not None:
                         to_hu_conv += "\n" + cleanup
@@ -209,7 +218,10 @@ class TypeMappingGenerator:
                     hu_conv_b = ""
                     if subty.from_hu_conv[1] != "":
                         iterator = self.consts.for_n_in_arr(conv_name, arr_name, subty)
-                        hu_conv_b = iterator[0] + subty.from_hu_conv[1] + ";" + iterator[1]
+                        if is_nullable:
+                            hu_conv_b = "if (" + arr_name + " != null) { " + iterator[0] + subty.from_hu_conv[1] + ";" + iterator[1] + " }"
+                        else:
+                            hu_conv_b = iterator[0] + subty.from_hu_conv[1] + ";" + iterator[1]
                     if from_hu_conv is not None:
                         arr_conv = self.consts.primitive_arr_from_hu(ty_info.subty, None, self.consts.map_hu_array_elems(arr_name, conv_name, ty_info, subty))
                         assert arr_conv[1] == ""
@@ -282,7 +294,7 @@ class TypeMappingGenerator:
                 ty_info.var_name = "ret"
 
             if ty_info.rust_obj in self.opaque_structs:
-                from_hu_conv = (ty_info.var_name + " == null ? 0 : " + self.consts.get_ptr(ty_info.var_name), self.consts.add_ref("this", ty_info.var_name))
+                from_hu_conv = (ty_info.var_name + " == null ? " + self.consts.native_zero_ptr + " : " + self.consts.get_ptr(ty_info.var_name), self.consts.add_ref("this", ty_info.var_name))
                 opaque_arg_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv;\n"
                 opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.inner = untag_ptr(" + ty_info.var_name + ");\n"
                 opaque_arg_conv += ty_info.var_name + "_conv.is_owned = ptr_is_owned(" + ty_info.var_name + ");\n"
@@ -298,7 +310,7 @@ class TypeMappingGenerator:
                         if holds_ref:
                             opaque_arg_conv += "\n" + ty_info.var_name + "_conv = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&" + ty_info.var_name + "_conv);"
                         else:
-                            from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".clone_ptr()", "")
+                            from_hu_conv = (ty_info.var_name + " == null ? " + self.consts.native_zero_ptr + " : " + ty_info.var_name + ".clone_ptr()", "")
                     elif ty_info.passed_as_ptr:
                         opaque_arg_conv += "\n// WARNING: we need a move here but no clone is available for " + ty_info.rust_obj + "\n"
                         # TODO: Once we support features cloning (which just isn't in C yet), we can make this a compile error instead!
@@ -380,7 +392,7 @@ class TypeMappingGenerator:
                             if holds_ref:
                                 base_conv += "\n" + ty_info.var_name + "_conv = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&" + ty_info.var_name + "_conv);"
                             else:
-                                from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".clone_ptr()", "")
+                                from_hu_conv = (ty_info.var_name + " == null ? " + self.consts.native_zero_ptr + " : " + ty_info.var_name + ".clone_ptr()", "")
                                 base_conv += "\n" + "FREE(untag_ptr(" + ty_info.var_name + "));"
                         else:
                             base_conv = base_conv + self.consts.trait_struct_inc_refcnt(ty_info)
@@ -389,7 +401,7 @@ class TypeMappingGenerator:
                     else:
                         base_conv = base_conv + "\n" + "FREE(untag_ptr(" + ty_info.var_name + "));"
                     if from_hu_conv is None:
-                        from_hu_conv = (ty_info.var_name + " == null ? 0 : " + self.consts.get_ptr(ty_info.var_name), "")
+                        from_hu_conv = (ty_info.var_name + " == null ? " + self.consts.native_zero_ptr + " : " + self.consts.get_ptr(ty_info.var_name), "")
                     from_hu_conv = (from_hu_conv[0], self.consts.add_ref("this", 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,
@@ -408,7 +420,7 @@ class TypeMappingGenerator:
                         if holds_ref:
                             base_conv += "\n" + ty_info.var_name + "_conv = " + ty_info.rust_obj.replace("LDK", "") + "_clone((" + ty_info.rust_obj + "*)untag_ptr(" + ty_info.var_name + "));"
                         else:
-                            from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".clone_ptr()", "")
+                            from_hu_conv = (ty_info.var_name + " == null ? " + self.consts.native_zero_ptr + " : " + ty_info.var_name + ".clone_ptr()", "")
                             base_conv += "\n" + "FREE(untag_ptr(" + ty_info.var_name + "));"
                     elif needs_full_clone:
                         base_conv = base_conv + "\n// WARNING: we may need a move here but no clone is available for " + ty_info.rust_obj
@@ -456,7 +468,7 @@ class TypeMappingGenerator:
                     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 = ", ";")
                     if from_hu_conv is None:
-                        from_hu_conv = (ty_info.var_name + " != null ? " + self.consts.get_ptr(ty_info.var_name) + " : 0", "")
+                        from_hu_conv = (ty_info.var_name + " != null ? " + self.consts.get_ptr(ty_info.var_name) + " : " + self.consts.native_zero_ptr, "")
                     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 = "tag_ptr(" + ty_info.var_name + "_conv, true)",
@@ -482,14 +494,14 @@ class TypeMappingGenerator:
                     else:
                         to_hu_conv_sfx = ""
                     if from_hu_conv is None:
-                        from_hu_conv = (ty_info.var_name + " != null ? " + self.consts.get_ptr(ty_info.var_name) + " : 0", "")
+                        from_hu_conv = (ty_info.var_name + " != null ? " + self.consts.get_ptr(ty_info.var_name) + " : " + self.consts.native_zero_ptr, "")
                     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 = ret_conv_name,
                         to_hu_conv = self.consts.var_decl_statement(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_sfx,
                         to_hu_conv_name = ty_info.var_name + "_hu_conv", from_hu_conv = from_hu_conv)
 
-                # The manually-defined types - TxOut, u5, and Error
+                # The manually-defined types - TxOut, BigEndianScalar, u5, and Error
                 if ty_info.rust_obj == "LDKError":
                     assert from_hu_conv is None
                     return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
@@ -506,12 +518,12 @@ class TypeMappingGenerator:
                         to_hu_conv = self.consts.var_decl_statement(ty_info.java_hu_ty, ty_info.var_name + "_conv", "new " + ty_info.java_hu_ty + "(" + ty_info.var_name + ")") + ";",
                         to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = (ty_info.var_name + ".getVal()", ""))
 
-                assert ty_info.rust_obj == "LDKTxOut"
+                assert ty_info.rust_obj == "LDKTxOut" or ty_info.rust_obj == "LDKBigEndianScalar"
                 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 = ", ";")
+                    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 = ", ";")
                     ret_conv_name = "tag_ptr(" + ty_info.var_name + "_ref, true)"
                 else:
-                    ret_conv = ("LDKTxOut* " + ty_info.var_name + "_ref = &", ";")
+                    ret_conv = (ty_info.rust_obj + "* " + ty_info.var_name + "_ref = &", ";")
                     ret_conv_name = "tag_ptr(" + ty_info.var_name + "_ref, false)"
                 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,
@@ -535,7 +547,7 @@ class TypeMappingGenerator:
                         ret_conv = ret_conv, ret_conv_name = "ref_" + ty_info.var_name,
                         to_hu_conv = self.consts.var_decl_statement(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 : " + self.consts.get_ptr(ty_info.var_name), from_hu_sfx))
+                        from_hu_conv = (ty_info.var_name + " == null ? " + self.consts.native_zero_ptr + " : " + self.consts.get_ptr(ty_info.var_name), from_hu_sfx))
                 elif ty_info.rust_obj in self.trait_structs:
                     if ty_info.nonnull_ptr:
                         arg_conv = "void* " + ty_info.var_name + "_ptr = untag_ptr(" + ty_info.var_name + ");\n"
@@ -564,7 +576,7 @@ class TypeMappingGenerator:
                             ret_conv_name = "tag_ptr(" + ty_info.var_name + "_clone, true)",
                             to_hu_conv = self.consts.var_decl_statement(ty_info.java_hu_ty, "ret_hu_conv", "new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ")") + ";\n" + self.consts.add_ref("ret_hu_conv", "this") + ";",
                             to_hu_conv_name = "ret_hu_conv",
-                            from_hu_conv = (ty_info.var_name + " == null ? 0 : " + self.consts.get_ptr(ty_info.var_name), ""))
+                            from_hu_conv = (ty_info.var_name + " == null ? " + self.consts.native_zero_ptr + " : " + self.consts.get_ptr(ty_info.var_name), ""))
                     else:
                         return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
                             arg_conv = arg_conv, arg_conv_name = arg_conv_name, arg_conv_cleanup = None,
@@ -572,7 +584,7 @@ class TypeMappingGenerator:
                             ret_conv_name = "ret_" + ty_info.var_name,
                             to_hu_conv = self.consts.var_decl_statement(ty_info.java_hu_ty, "ret_hu_conv", "new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ")") + ";\n" + self.consts.add_ref("ret_hu_conv", "this") + ";",
                             to_hu_conv_name = "ret_hu_conv",
-                            from_hu_conv = (ty_info.var_name + " == null ? 0 : " + self.consts.get_ptr(ty_info.var_name), self.consts.add_ref("this", ty_info.var_name)))
+                            from_hu_conv = (ty_info.var_name + " == null ? " + self.consts.native_zero_ptr + " : " + self.consts.get_ptr(ty_info.var_name), self.consts.add_ref("this", ty_info.var_name)))
                 ret_conv = (self.consts.ptr_c_ty + " ret_" + ty_info.var_name + " = tag_ptr(", ", true);")
                 if holds_ref:
                     ret_conv = (ret_conv[0], ", false);")