def map_type(self, fn_arg, print_void, ret_arr_len, is_free, holds_ref):
ty_info = self.java_c_types(fn_arg, ret_arr_len)
- mapped_info = self.map_type_with_info(ty_info, print_void, ret_arr_len, is_free, holds_ref)
+ mapped_info = self.map_type_with_info(ty_info, print_void, ret_arr_len, is_free, holds_ref, False)
return mapped_info
- def map_type_with_info(self, ty_info, print_void, ret_arr_len, is_free, holds_ref):
+ def map_nullable_type(self, fn_arg, print_void, ret_arr_len, is_free, holds_ref):
+ ty_info = self.java_c_types(fn_arg, ret_arr_len)
+ mapped_info = self.map_type_with_info(ty_info, print_void, ret_arr_len, is_free, holds_ref, True)
+ return mapped_info
+
+ def map_type_with_info(self, ty_info, print_void, ret_arr_len, is_free, holds_ref, is_nullable):
+ mapped_info = self._do_map_type_with_info(ty_info, print_void, ret_arr_len, is_free, holds_ref, is_nullable)
+ if is_nullable:
+ mapped_info.nullable = True
+ return mapped_info
+
+ def _do_map_type_with_info(self, ty_info, print_void, ret_arr_len, is_free, holds_ref, is_nullable):
if ty_info.c_ty == "void":
if not print_void:
return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
# function itself, resulting in a segfault. Thus, we manually check and ensure we don't clone for
# ChannelMonitors inside of vecs.
ty_info.subty.requires_clone = False
- subty = self.map_type_with_info(ty_info.subty, False, None, is_free, holds_ref)
+ subty = self.map_type_with_info(ty_info.subty, False, None, is_free, holds_ref, False)
arg_conv = ty_info.rust_obj + " " + arr_name + "_constr;\n"
pf = ""
if ty_info.is_ptr:
if ty_info.is_ptr:
arg_conv += "\n\t" + arr_name + "_ptr = &" + arr_name + "_constr;\n}"
- ret_conv = (ty_info.rust_obj + " " + arr_name + "_var = ", "")
+ if is_nullable:
+ ret_conv = (ty_info.rust_obj + " *" + arr_name + "_var_ptr = ", "")
+ else:
+ ret_conv = (ty_info.rust_obj + " " + arr_name + "_var = ", "")
if subty.ret_conv is None:
ret_conv = ("DUMMY", "DUMMY")
else:
- ret_conv = (ret_conv[0], ";\n" + ty_info.c_ty + " " + arr_name + "_arr = " + self.consts.create_native_arr_call(arr_name + "_var." + arr_len, ty_info) + ";\n")
+ ret_conv = (ret_conv[0], ";\n" + ty_info.c_ty + " " + arr_name + "_arr = NULL;\n")
+ indent = ""
+ if is_nullable:
+ ret_conv = (ret_conv[0], ret_conv[1] + "if (" + arr_name + " != NULL) {\n")
+ ret_conv = (ret_conv[0], ret_conv[1] + "\t" + ty_info.rust_obj + " " + arr_name + "_var = *" + arr_name + "_var_ptr;\n")
+ indent = "\t"
+ ret_conv = (ret_conv[0], ret_conv[1] + indent + arr_name + "_arr = " + self.consts.create_native_arr_call(arr_name + "_var." + arr_len, ty_info) + ";\n")
get_ptr_call = self.consts.get_native_arr_ptr_call(ty_info)
if get_ptr_call is not None:
- ret_conv = (ret_conv[0], ret_conv[1] + subty.c_ty + " *" + arr_name + "_arr_ptr = " + get_ptr_call[0] + arr_name + "_arr" + get_ptr_call[1] + ";\n")
- ret_conv = (ret_conv[0], ret_conv[1] + "for (size_t " + idxc + " = 0; " + idxc + " < " + arr_name + "_var." + arr_len + "; " + idxc + "++) {\n")
- ret_conv = (ret_conv[0], ret_conv[1] + "\t" + subty.ret_conv[0].replace("\n", "\n\t"))
- ret_conv = (ret_conv[0], ret_conv[1] + arr_name + "_var." + ty_info.arr_access + "[" + idxc + "]" + subty.ret_conv[1].replace("\n", "\n\t"))
+ ret_conv = (ret_conv[0], ret_conv[1] + indent + subty.c_ty + " *" + arr_name + "_arr_ptr = " + get_ptr_call[0] + arr_name + "_arr" + get_ptr_call[1] + ";\n")
+ ret_conv = (ret_conv[0], ret_conv[1] + indent + "for (size_t " + idxc + " = 0; " + idxc + " < " + arr_name + "_var." + arr_len + "; " + idxc + "++) {\n")
+ ret_conv = (ret_conv[0], ret_conv[1] + indent + "\t" + subty.ret_conv[0].replace("\n", "\n\t" + indent))
+ ret_conv = (ret_conv[0], ret_conv[1] + indent + arr_name + "_var." + ty_info.arr_access + "[" + idxc + "]" + subty.ret_conv[1].replace("\n", "\n\t" + indent) + "\n")
if get_ptr_call is not None:
- ret_conv = (ret_conv[0], ret_conv[1] + "\n\t" + arr_name + "_arr_ptr[" + idxc + "] = " + subty.ret_conv_name + ";\n}")
+ ret_conv = (ret_conv[0], ret_conv[1] + indent + "\t" + arr_name + "_arr_ptr[" + idxc + "] = " + subty.ret_conv_name + ";\n" + indent + "}\n")
else:
- ret_conv = (ret_conv[0], ret_conv[1] + "\n\t" + self.consts.get_native_arr_entry_call(ty_info, arr_name + "_arr", idxc, subty.ret_conv_name) + ";\n}")
+ ret_conv = (ret_conv[0], ret_conv[1] + indent + "\t" + self.consts.get_native_arr_entry_call(ty_info, arr_name + "_arr", idxc, subty.ret_conv_name) + ";\n" + indent + "}\n")
cleanup = self.consts.release_native_arr_ptr_call(ty_info, arr_name + "_arr", arr_name + "_arr_ptr")
if cleanup is not None:
- ret_conv = (ret_conv[0], ret_conv[1] + "\n" + cleanup + ";")
- if not holds_ref:
- # XXX: The commented if's are a bit smarter freeing, but we need to be a nudge smarter still
- # Note that we don't drop the full vec here - we're passing ownership to java (or have cloned) or free'd by now!
- ret_conv = (ret_conv[0], ret_conv[1] + "\nFREE(" + arr_name + "_var." + ty_info.arr_access + ");")
- #if subty.rust_obj is not None and subty.rust_obj in self.opaque_structs:
- # ret_conv = (ret_conv[0], ret_conv[1] + "\nFREE(" + arr_name + "_var." + ty_info.arr_access + ");")
- #else:
- # ret_conv = (ret_conv[0], ret_conv[1] + "\n" + ty_info.rust_obj.replace("LDK", "") + "_free(" + arr_name + "_var);")
+ ret_conv = (ret_conv[0], ret_conv[1] + indent + cleanup + ";")
+ if not holds_ref and not is_nullable:
+ # XXX: The commented if's are a bit smarter freeing, but we need to be a nudge smarter still
+ # Note that we don't drop the full vec here - we're passing ownership to java (or have cloned) or free'd by now!
+ ret_conv = (ret_conv[0], ret_conv[1] + "\n" + indent + "FREE(" + arr_name + "_var." + ty_info.arr_access + ");")
+ #if subty.rust_obj is not None and subty.rust_obj in self.opaque_structs:
+ # ret_conv = (ret_conv[0], ret_conv[1] + "\nFREE(" + arr_name + "_var." + ty_info.arr_access + ");")
+ #else:
+ # ret_conv = (ret_conv[0], ret_conv[1] + "\n" + ty_info.rust_obj.replace("LDK", "") + "_free(" + arr_name + "_var);")
+ if is_nullable:
+ ret_conv = (ret_conv[0], ret_conv[1] + "\n}")
to_hu_conv = None
to_hu_conv_name = None
arg_conv = arg_conv, arg_conv_name = arg_conv_name, arg_conv_cleanup = arg_conv_cleanup,
ret_conv = ret_conv, ret_conv_name = arr_name + "_arr", to_hu_conv = to_hu_conv, to_hu_conv_name = to_hu_conv_name, from_hu_conv = from_hu_conv)
elif ty_info.java_ty == "String":
+ assert not is_nullable
if not is_free:
arg_conv = "LDKStr " + ty_info.var_name + "_conv = " + self.consts.str_ref_to_c_call(ty_info.var_name) + ";"
arg_conv_name = ty_info.var_name + "_conv"
arg_conv = None, arg_conv_name = "arg", arg_conv_cleanup = None,
ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 8", to_hu_conv_name = None, from_hu_conv = None)
elif ty_info.is_native_primitive:
+ assert not is_nullable
return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
arg_conv = None, arg_conv_name = ty_info.var_name, arg_conv_cleanup = None,
ret_conv = None, ret_conv_name = None, to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
"// Thus, after this call, " + ty_info.var_name + " is reset to null and is now a dummy object.\n" + ty_info.var_name + ".ptr = 0")
opaque_ret_conv_suf = ";\n"
+ opaque_ret_conv_suf += "uint64_t " + ty_info.var_name + "_ref = 0;\n"
+ indent = ""
+ if is_nullable:
+ opaque_ret_conv_suf += "if ((uint64_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 = opaque_ret_conv_suf + 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 + ");\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 no clone is available for " + ty_info.rust_obj + "\n"
+ opaque_ret_conv_suf += indent + "// Warning: we may need a move here but no clone is available for " + ty_info.rust_obj + "\n"
- opaque_ret_conv_suf = opaque_ret_conv_suf + "CHECK((((uint64_t)" + 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((((uint64_t)&" + ty_info.var_name + "_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.\n"
+ opaque_ret_conv_suf += indent + "CHECK((((uint64_t)" + ty_info.var_name + "_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.\n"
+ opaque_ret_conv_suf += indent + "CHECK((((uint64_t)&" + 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 + "uint64_t " + ty_info.var_name + "_ref = (uint64_t)" + ty_info.var_name + "_var.inner & ~1;"
+ opaque_ret_conv_suf += indent + ty_info.var_name + "_ref = (uint64_t)" + ty_info.var_name + "_var.inner & ~1;"
else:
- opaque_ret_conv_suf = opaque_ret_conv_suf + "uint64_t " + ty_info.var_name + "_ref = (uint64_t)" + 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 + "}"
+ opaque_ret_conv_suf += indent + ty_info.var_name + "_ref = (uint64_t)" + ty_info.var_name + "_var.inner;\n"
+ opaque_ret_conv_suf += indent + "if (" + ty_info.var_name + "_var.is_owned) {\n"
+ opaque_ret_conv_suf += indent + "\t" + ty_info.var_name + "_ref |= 1;\n"
+ opaque_ret_conv_suf += indent + "}"
+ if is_nullable:
+ opaque_ret_conv_suf += "\n}"
to_hu_conv_sfx = ""
if not ty_info.is_ptr or holds_ref:
to_hu_conv_name = ty_info.var_name + "_hu_conv",
from_hu_conv = from_hu_conv)
+ assert not is_nullable
if not ty_info.is_ptr:
if ty_info.rust_obj in self.unitary_enums:
(ret_pfx, ret_sfx) = self.consts.c_unitary_enum_to_native_call(ty_info)
base_conv += "CHECK_ACCESS(" + ty_info.var_name + "_ptr);\n"
base_conv += ty_info.rust_obj + " " + ty_info.var_name + "_conv = *(" + ty_info.rust_obj + "*)(" + ty_info.var_name + "_ptr);"
if ty_info.rust_obj in self.trait_structs:
- ret_conv = (ty_info.rust_obj + "* " + ty_info.var_name + "_ret =MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*" + ty_info.var_name + "_ret = ", ";")
+ ret_conv = (ty_info.rust_obj + "* " + ty_info.var_name + "_ret = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*" + ty_info.var_name + "_ret = ", ";")
if holds_ref:
if (ty_info.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns:
ret_conv = (ret_conv[0] + ty_info.rust_obj.replace("LDK", "") + "_clone(&", ");")
ret_conv_name = "((uint64_t)" + ty_info.var_name + "_conv)"
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 = ", ";")
if (ty_info.rust_obj.replace("LDK", "") + "_clone") not in self.clone_fns:
- ret_conv = (ret_conv[0], ret_conv[1] + "\n// Warning: we really need to clone here, but no clone is available for " + ty_info.rust_obj)
+ ret_conv = (ty_info.rust_obj + "* " + ty_info.var_name + "_conv = &", "")
+ ret_conv = (ret_conv[0], ";\n// Warning: we really need to clone here, but no clone is available for " + ty_info.rust_obj)
ret_conv_name += " | 1"
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 = ", ";")
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 = ", ";")
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,
- ret_conv = ("uint64_t ret_" + ty_info.var_name + " = (uint64_t)", ";"), ret_conv_name = "ret_" + ty_info.var_name,
+ ret_conv = ("// WARNING: This object doesn't live past this scope, needs clone!\nuint64_t ret_" + ty_info.var_name + " = ((uint64_t)", ") | 1;"),
+ 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 + ")"))