1 from bindingstypes import ConvInfo
3 class TypeMappingGenerator:
5 def __init__(self, java_c_types, consts, c_array_class_caches, opaque_structs, clone_fns, unitary_enums, trait_structs, complex_enums, result_types, tuple_types):
6 # trick our way around circular imports
7 self.java_c_types = java_c_types
9 self.c_array_class_caches = c_array_class_caches
10 self.opaque_structs = opaque_structs
11 self.clone_fns = clone_fns
12 self.unitary_enums = unitary_enums
13 self.trait_structs = trait_structs
14 self.complex_enums = complex_enums
15 self.result_types = result_types
16 self.tuple_types = tuple_types
18 def map_type(self, fn_arg, print_void, ret_arr_len, is_free, holds_ref):
19 ty_info = self.java_c_types(fn_arg, ret_arr_len)
20 return self.map_type_with_info(ty_info, print_void, ret_arr_len, is_free, holds_ref)
22 def map_type_with_info(self, ty_info, print_void, ret_arr_len, is_free, holds_ref):
23 if ty_info.c_ty == "void":
25 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
26 arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None,
27 ret_conv = None, ret_conv_name = None, to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
28 if ty_info.c_ty.endswith("Array"):
29 arr_len = ty_info.arr_len
30 if arr_len is not None:
31 arr_name = ty_info.var_name
35 if ty_info.c_ty == "int8_tArray":
36 (set_pfx, set_sfx) = self.consts.set_native_arr_contents(arr_name + "_arr", arr_len, ty_info)
37 ret_conv = ("int8_tArray " + arr_name + "_arr = " + self.consts.create_native_arr_call(arr_len, ty_info) + ";\n" + set_pfx, "")
38 arg_conv_cleanup = None
39 if not arr_len.isdigit():
40 arg_conv = ty_info.rust_obj + " " + arr_name + "_ref;\n"
41 arg_conv = arg_conv + arr_name + "_ref." + arr_len + " = " + self.consts.get_native_arr_len_call[0] + arr_name + self.consts.get_native_arr_len_call[1] + ";\n"
42 if (not ty_info.is_ptr or not holds_ref) and ty_info.rust_obj != "LDKu8slice":
43 arg_conv = arg_conv + arr_name + "_ref." + ty_info.arr_access + " = MALLOC(" + arr_name + "_ref." + arr_len + ", \"" + ty_info.rust_obj + " Bytes\");\n"
44 arg_conv = arg_conv + self.consts.get_native_arr_contents(arr_name, arr_name + "_ref." + ty_info.arr_access, arr_name + "_ref." + arr_len, ty_info, True) + ";"
46 arg_conv = arg_conv + arr_name + "_ref." + ty_info.arr_access + " = " + self.consts.get_native_arr_contents(arr_name, "NO_DEST", arr_name + "_ref." + arr_len, ty_info, False) + ";"
47 arg_conv_cleanup = self.consts.cleanup_native_arr_ref_contents(arr_name, arr_name + "_ref." + ty_info.arr_access, arr_name + "_ref." + arr_len, ty_info)
48 if ty_info.rust_obj == "LDKTransaction":
49 arg_conv = arg_conv + "\n" + arr_name + "_ref.data_is_owned = " + str(holds_ref).lower() + ";"
50 ret_conv = (ty_info.rust_obj + " " + arr_name + "_var = ", "")
51 ret_conv = (ret_conv[0], ";\nint8_tArray " + arr_name + "_arr = " + self.consts.create_native_arr_call(arr_name + "_var." + arr_len, ty_info) + ";\n")
52 (pfx, sfx) = self.consts.set_native_arr_contents(arr_name + "_arr", arr_name + "_var." + arr_len, ty_info)
53 ret_conv = (ret_conv[0], ret_conv[1] + pfx + arr_name + "_var." + ty_info.arr_access + sfx + ";")
54 if not holds_ref and ty_info.rust_obj != "LDKu8slice":
55 ret_conv = (ret_conv[0], ret_conv[1] + "\n" + ty_info.rust_obj.replace("LDK", "") + "_free(" + arr_name + "_var);")
56 elif ty_info.rust_obj is not None:
57 arg_conv = ty_info.rust_obj + " " + arr_name + "_ref;\n"
58 arg_conv = arg_conv + "CHECK(" + self.consts.get_native_arr_len_call[0] + arr_name + self.consts.get_native_arr_len_call[1] + " == " + arr_len + ");\n"
59 arg_conv = arg_conv + self.consts.get_native_arr_contents(arr_name, arr_name + "_ref." + ty_info.arr_access, arr_len, ty_info, True) + ";"
60 ret_conv = (ret_conv[0], "." + ty_info.arr_access + set_sfx + ";")
62 arg_conv = "unsigned char " + arr_name + "_arr[" + arr_len + "];\n"
63 arg_conv = arg_conv + "CHECK(" + self.consts.get_native_arr_len_call[0] + arr_name + self.consts.get_native_arr_len_call[1] + " == " + arr_len + ");\n"
64 arg_conv = arg_conv + self.consts.get_native_arr_contents(arr_name, arr_name + "_arr", arr_len, ty_info, True) + ";\n"
65 arg_conv = arg_conv + "unsigned char (*" + arr_name + "_ref)[" + arr_len + "] = &" + arr_name + "_arr;"
66 ret_conv = (ret_conv[0] + "*", set_sfx + ";")
67 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
68 arg_conv = arg_conv, arg_conv_name = arr_name + "_ref", arg_conv_cleanup = arg_conv_cleanup,
69 ret_conv = ret_conv, ret_conv_name = arr_name + "_arr", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
71 assert not arr_len.isdigit() # fixed length arrays not implemented
72 assert ty_info.java_ty[len(ty_info.java_ty) - 2:] == "[]"
73 conv_name = "arr_conv_" + str(len(ty_info.java_hu_ty))
74 idxc = chr(ord('a') + (len(ty_info.java_hu_ty) % 26))
75 ty_info.subty.var_name = conv_name
76 #XXX: We'd really prefer to only ever set to False, avoiding lots of clone, but need smarter free logic
77 #if ty_info.is_ptr or holds_ref:
78 # ty_info.subty.requires_clone = False
79 ty_info.subty.requires_clone = not ty_info.is_ptr or not holds_ref
80 subty = self.map_type_with_info(ty_info.subty, False, None, is_free, holds_ref)
83 arg_conv = ty_info.rust_obj + " " + arr_name + "_constr;\n"
84 arg_conv = arg_conv + arr_name + "_constr." + arr_len + " = " + self.consts.get_native_arr_len_call[0] + arr_name + self.consts.get_native_arr_len_call[1] + ";\n"
85 arg_conv = arg_conv + "if (" + arr_name + "_constr." + arr_len + " > 0)\n"
86 if subty.rust_obj is None:
90 arg_conv = arg_conv + "\t" + arr_name + "_constr." + ty_info.arr_access + " = MALLOC(" + arr_name + "_constr." + arr_len + " * sizeof(" + szof + "), \"" + ty_info.rust_obj + " Elements\");\n"
91 arg_conv = arg_conv + "else\n"
92 arg_conv = arg_conv + "\t" + arr_name + "_constr." + ty_info.arr_access + " = NULL;\n"
93 get_arr = self.consts.get_native_arr_contents(arr_name, "NO_DEST", arr_name + "_constr." + arr_len, ty_info, False)
95 arg_conv = arg_conv + subty.c_ty + "* " + arr_name + "_vals = " + get_arr + ";\n"
96 arg_conv = arg_conv + "for (size_t " + idxc + " = 0; " + idxc + " < " + arr_name + "_constr." + arr_len + "; " + idxc + "++) {\n"
98 arg_conv = arg_conv + "\t" + subty.c_ty + " " + conv_name + " = " + arr_name + "_vals[" + idxc + "];"
99 if subty.arg_conv is not None:
100 arg_conv = arg_conv + "\n\t" + subty.arg_conv.replace("\n", "\n\t")
102 arg_conv = arg_conv + "\t" + subty.c_ty + " " + conv_name + " = " + self.consts.get_native_arr_elem(arr_name, idxc, ty_info) + ";\n"
103 arg_conv = arg_conv + "\t" + subty.arg_conv.replace("\n", "\n\t")
104 arg_conv = arg_conv + "\n\t" + arr_name + "_constr." + ty_info.arr_access + "[" + idxc + "] = " + subty.arg_conv_name + ";\n}"
106 cleanup = self.consts.cleanup_native_arr_ref_contents(arr_name, arr_name + "_vals", arr_name + "_constr." + arr_len, ty_info)
107 if cleanup is not None:
108 arg_conv = arg_conv + "\n" + cleanup + ";"
110 arg_conv_name = "&" + arr_name + "_constr"
112 arg_conv_name = arr_name + "_constr"
113 arg_conv_cleanup = None
115 arg_conv_cleanup = "FREE(" + arr_name + "_constr." + ty_info.arr_access + ");"
117 if arr_name == "arg":
119 ret_conv = (ty_info.rust_obj + " " + arr_name + "_var = ", "")
120 if subty.ret_conv is None:
121 ret_conv = ("DUMMY", "DUMMY")
122 elif not ty_info.java_ty[:len(ty_info.java_ty) - 2].endswith("[]"):
123 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")
124 ret_conv = (ret_conv[0], ret_conv[1] + subty.c_ty + " *" + arr_name + "_arr_ptr = " + self.consts.get_native_arr_ptr_call[0] + arr_name + "_arr" + self.consts.get_native_arr_ptr_call[1] + ";\n")
125 ret_conv = (ret_conv[0], ret_conv[1] + "for (size_t " + idxc + " = 0; " + idxc + " < " + arr_name + "_var." + arr_len + "; " + idxc + "++) {\n")
126 ret_conv = (ret_conv[0], ret_conv[1] + "\t" + subty.ret_conv[0].replace("\n", "\n\t"))
127 ret_conv = (ret_conv[0], ret_conv[1] + arr_name + "_var." + ty_info.arr_access + "[" + idxc + "]" + subty.ret_conv[1].replace("\n", "\n\t"))
128 ret_conv = (ret_conv[0], ret_conv[1] + "\n\t" + arr_name + "_arr_ptr[" + idxc + "] = " + subty.ret_conv_name + ";\n}")
129 cleanup = self.consts.release_native_arr_ptr_call(arr_name + "_arr", arr_name + "_arr_ptr")
130 if cleanup is not None:
131 ret_conv = (ret_conv[0], ret_conv[1] + "\n" + cleanup + ";")
133 assert ty_info.java_fn_ty_arg.startswith("[")
134 clz_var = ty_info.java_fn_ty_arg[1:].replace("[", "arr_of_")
135 self.c_array_class_caches.add(clz_var)
136 ret_conv = (ret_conv[0], ";\n" + ty_info.c_ty + " " + arr_name + "_arr = (*env)->NewObjectArray(env, " + arr_name + "_var." + arr_len + ", " + clz_var + "_clz, NULL);\n")
137 ret_conv = (ret_conv[0], ret_conv[1] + "for (size_t " + idxc + " = 0; " + idxc + " < " + arr_name + "_var." + arr_len + "; " + idxc + "++) {\n")
138 ret_conv = (ret_conv[0], ret_conv[1] + "\t" + subty.ret_conv[0].replace("\n", "\n\t"))
139 ret_conv = (ret_conv[0], ret_conv[1] + arr_name + "_var." + ty_info.arr_access + "[" + idxc + "]" + subty.ret_conv[1].replace("\n", "\n\t"))
140 ret_conv = (ret_conv[0], ret_conv[1] + "\n\t(*env)->SetObjectArrayElement(env, " + arr_name + "_arr, " + idxc + ", " + subty.ret_conv_name + ");\n")
141 ret_conv = (ret_conv[0], ret_conv[1] + "}")
143 # XXX: The commented if's are a bit smarter freeing, but we need to be a nudge smarter still
144 # Note that we don't drop the full vec here - we're passing ownership to java (or have cloned) or free'd by now!
145 ret_conv = (ret_conv[0], ret_conv[1] + "\nFREE(" + arr_name + "_var." + ty_info.arr_access + ");")
146 #if subty.rust_obj is not None and subty.rust_obj in self.opaque_structs:
147 # ret_conv = (ret_conv[0], ret_conv[1] + "\nFREE(" + arr_name + "_var." + ty_info.arr_access + ");")
149 # ret_conv = (ret_conv[0], ret_conv[1] + "\n" + ty_info.rust_obj.replace("LDK", "") + "_free(" + arr_name + "_var);")
152 to_hu_conv_name = None
153 if subty.to_hu_conv is not None:
154 to_hu_conv = ty_info.java_hu_ty + " " + conv_name + "_arr = new " + ty_info.subty.java_hu_ty.split("<")[0] + "[" + arr_name + ".length];\n"
155 to_hu_conv = to_hu_conv + "for (int " + idxc + " = 0; " + idxc + " < " + arr_name + ".length; " + idxc + "++) {\n"
156 to_hu_conv = to_hu_conv + "\t" + subty.java_ty + " " + conv_name + " = " + arr_name + "[" + idxc + "];\n"
157 to_hu_conv = to_hu_conv + "\t" + subty.to_hu_conv.replace("\n", "\n\t") + "\n"
158 to_hu_conv = to_hu_conv + "\t" + conv_name + "_arr[" + idxc + "] = " + subty.to_hu_conv_name + ";\n}"
159 to_hu_conv_name = conv_name + "_arr"
161 if subty.from_hu_conv is not None:
162 if subty.java_ty == "long" and subty.java_hu_ty != "long":
163 from_hu_conv = ("Arrays.stream(" + arr_name + ").mapToLong(" + conv_name + " -> " + subty.from_hu_conv[0] + ").toArray()", "/* TODO 2 " + subty.java_hu_ty + " */")
164 elif subty.java_ty == "long":
165 from_hu_conv = ("Arrays.stream(" + arr_name + ").map(" + conv_name + " -> " + subty.from_hu_conv[0] + ").toArray()", "/* TODO 2 " + subty.java_hu_ty + " */")
167 from_hu_conv = ("(" + ty_info.java_ty + ")Arrays.stream(" + arr_name + ").map(" + conv_name + " -> " + subty.from_hu_conv[0] + ").toArray()", "/* TODO 2 " + subty.java_hu_ty + " */")
169 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
170 arg_conv = arg_conv, arg_conv_name = arg_conv_name, arg_conv_cleanup = arg_conv_cleanup,
171 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)
172 elif ty_info.java_ty == "String":
173 if ty_info.arr_access is None:
174 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
175 arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None,
176 ret_conv = ("jstring " + ty_info.var_name + "_conv = (*env)->NewStringUTF(env, ", ");"), ret_conv_name = ty_info.var_name + "_conv",
177 to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
179 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
180 arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None,
181 ret_conv = ("LDKStr " + ty_info.var_name + "_str = ",
182 ";\nchar* " + ty_info.var_name + "_buf = MALLOC(" + ty_info.var_name + "_str." + ty_info.arr_len + " + 1, \"str conv buf\");\n" +
183 "memcpy(" + ty_info.var_name + "_buf, " + ty_info.var_name + "_str." + ty_info.arr_access + ", " + ty_info.var_name + "_str." + ty_info.arr_len + ");\n" +
184 ty_info.var_name + "_buf[" + ty_info.var_name + "_str." + ty_info.arr_len + "] = 0;\n" +
185 "jstring " + ty_info.var_name + "_conv = (*env)->NewStringUTF(env, " + ty_info.var_name + "_str." + ty_info.arr_access + ");\n" +
186 "FREE(" + ty_info.var_name + "_buf);"),
187 ret_conv_name = ty_info.var_name + "_conv", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
188 elif ty_info.var_name == "" and not print_void:
189 # We don't have a parameter name, and want one, just call it arg
190 if ty_info.rust_obj is not None:
191 assert(not is_free or ty_info.rust_obj not in self.opaque_structs)
192 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
193 arg_conv = ty_info.rust_obj + " arg_conv = *(" + ty_info.rust_obj + "*)arg;\nFREE((void*)arg);",
194 arg_conv_name = "arg_conv", arg_conv_cleanup = None,
195 ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 7", to_hu_conv_name = None, from_hu_conv = None)
198 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
199 arg_conv = None, arg_conv_name = "arg", arg_conv_cleanup = None,
200 ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 8", to_hu_conv_name = None, from_hu_conv = None)
201 elif ty_info.rust_obj is None:
202 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
203 arg_conv = None, arg_conv_name = ty_info.var_name, arg_conv_cleanup = None,
204 ret_conv = None, ret_conv_name = None, to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
206 if ty_info.var_name == "":
207 ty_info.var_name = "ret"
209 if ty_info.rust_obj in self.opaque_structs:
210 opaque_arg_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv;\n"
211 opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.inner = (void*)(" + ty_info.var_name + " & (~1));\n"
212 if ty_info.is_ptr and holds_ref:
213 opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.is_owned = false;"
215 opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.is_owned = (" + ty_info.var_name + " & 1) || (" + ty_info.var_name + " == 0);"
216 if not is_free and (not ty_info.is_ptr or not holds_ref or ty_info.requires_clone == True) and ty_info.requires_clone != False:
217 if (ty_info.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns:
218 # TODO: This is a bit too naive, even with the checks above, we really need to know if rust wants a ref or not, not just if its pass as a ptr.
219 opaque_arg_conv = opaque_arg_conv + "\nif (" + ty_info.var_name + "_conv.inner != NULL)\n"
220 opaque_arg_conv = opaque_arg_conv + "\t" + ty_info.var_name + "_conv = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&" + ty_info.var_name + "_conv);"
221 elif ty_info.passed_as_ptr:
222 opaque_arg_conv = opaque_arg_conv + "\n// Warning: we may need a move here but can't clone!"
224 opaque_ret_conv_suf = ";\n"
225 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
226 opaque_ret_conv_suf = opaque_ret_conv_suf + "if (" + ty_info.var_name + "->inner != NULL)\n"
227 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"
228 elif not holds_ref and ty_info.is_ptr:
229 opaque_ret_conv_suf = opaque_ret_conv_suf + "// Warning: we may need a move here but can't clone!\n"
231 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"
232 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"
234 opaque_ret_conv_suf = opaque_ret_conv_suf + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner & ~1;"
236 opaque_ret_conv_suf = opaque_ret_conv_suf + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner;\n"
237 opaque_ret_conv_suf = opaque_ret_conv_suf + "if (" + ty_info.var_name + "_var.is_owned) {\n"
238 opaque_ret_conv_suf = opaque_ret_conv_suf + "\t" + ty_info.var_name + "_ref |= 1;\n"
239 opaque_ret_conv_suf = opaque_ret_conv_suf + "}"
242 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
243 arg_conv = opaque_arg_conv, arg_conv_name = "&" + ty_info.var_name + "_conv", arg_conv_cleanup = None,
244 ret_conv = (ty_info.rust_obj + " " + ty_info.var_name + "_var = *", opaque_ret_conv_suf),
245 ret_conv_name = ty_info.var_name + "_ref",
246 # 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 + ");",
247 to_hu_conv = self.consts.to_hu_conv_templates['ptr'].replace('{human_type}', ty_info.java_hu_ty).replace('{var_name}', ty_info.var_name),
248 to_hu_conv_name = ty_info.var_name + "_hu_conv",
249 from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")"))
251 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
252 arg_conv = opaque_arg_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
253 ret_conv = (ty_info.rust_obj + " " + ty_info.var_name + "_var = ", opaque_ret_conv_suf),
254 ret_conv_name = ty_info.var_name + "_ref",
255 # 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 + ");",
256 to_hu_conv = self.consts.to_hu_conv_templates['default'].replace('{human_type}', ty_info.java_hu_ty).replace('{var_name}', ty_info.var_name),
257 to_hu_conv_name = ty_info.var_name + "_hu_conv",
258 from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")"))
260 if not ty_info.is_ptr:
261 if ty_info.rust_obj in self.unitary_enums:
262 (ret_pfx, ret_sfx) = self.consts.c_unitary_enum_to_native_call(ty_info)
263 (arg_pfx, arg_sfx) = self.consts.native_unitary_enum_to_c_call(ty_info)
264 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
265 arg_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv = " + arg_pfx + ty_info.var_name + arg_sfx + ";",
266 arg_conv_name = ty_info.var_name + "_conv",
267 arg_conv_cleanup = None,
268 ret_conv = (ty_info.c_ty + " " + ty_info.var_name + "_conv = " + ret_pfx, ret_sfx + ";"),
269 ret_conv_name = ty_info.var_name + "_conv", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
270 base_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv = *(" + ty_info.rust_obj + "*)" + ty_info.var_name + ";"
271 if ty_info.rust_obj in self.trait_structs:
273 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
274 if needs_full_clone and (ty_info.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns:
275 base_conv = base_conv + "\n" + ty_info.var_name + "_conv = " + ty_info.rust_obj.replace("LDK", "") + "_clone(" + ty_info.var_name + ");"
277 base_conv = base_conv + "\nif (" + ty_info.var_name + "_conv.free == " + ty_info.rust_obj + "_JCalls_free) {\n"
278 base_conv = base_conv + "\t// If this_arg is a JCalls struct, then we need to increment the refcnt in it.\n"
279 base_conv = base_conv + "\t" + ty_info.rust_obj + "_JCalls_clone(" + ty_info.var_name + "_conv.this_arg);\n}"
281 base_conv = base_conv + "// Warning: we may need a move here but can't do a full clone!\n"
284 base_conv = base_conv + "\n" + "FREE((void*)" + ty_info.var_name + ");"
285 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
286 arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
287 ret_conv = (ty_info.rust_obj + "* ret = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*ret = ", ";"),
288 ret_conv_name = "(long)ret",
289 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);",
290 to_hu_conv_name = "ret_hu_conv",
291 from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")"))
292 if ty_info.rust_obj != "LDKu8slice":
293 # Don't bother free'ing slices passed in - Rust doesn't auto-free the
294 # underlying unlike Vecs, and it gives Java more freedom.
295 base_conv = base_conv + "\nFREE((void*)" + ty_info.var_name + ");";
296 if ty_info.rust_obj in self.complex_enums:
297 ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";")
299 ret_conv = (ty_info.rust_obj + " *" + ty_info.var_name + "_copy = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n", "")
300 if ty_info.requires_clone == True: # Set in object array mapping
301 if (ty_info.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns:
302 ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&", ");\n")
304 ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = ", "; // XXX: We likely need to clone here, but no _clone fn is available!\n")
306 ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = ", ";\n")
307 ret_conv = (ret_conv[0], ret_conv[1] + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_copy;")
308 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
309 arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
310 ret_conv = ret_conv, ret_conv_name = ty_info.var_name + "_ref",
311 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);",
312 to_hu_conv_name = ty_info.var_name + "_hu_conv", from_hu_conv = (ty_info.var_name + ".ptr", ""))
313 if ty_info.rust_obj in self.result_types:
315 # If we're trying to return a ref, we have to clone.
316 # We just blindly assume its implemented and let the compiler fail if its not.
317 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 = ", ";")
318 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);")
320 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 = ", ";")
321 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
322 arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
323 ret_conv = ret_conv, ret_conv_name = "(long)" + ty_info.var_name + "_conv",
324 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 + ");",
325 to_hu_conv_name = ty_info.var_name + "_hu_conv", from_hu_conv = (ty_info.var_name + " != null ? " + ty_info.var_name + ".ptr : 0", ""))
326 if ty_info.rust_obj in self.tuple_types:
327 from_hu_conv = "bindings." + self.tuple_types[ty_info.rust_obj][1].replace("LDK", "") + "_new("
329 to_hu_conv_sfx = ty_info.java_hu_ty + " " + ty_info.var_name + "_conv = new " + ty_info.java_hu_ty + "("
331 for idx, conv in enumerate(self.tuple_types[ty_info.rust_obj][0]):
333 to_hu_conv_sfx = to_hu_conv_sfx + ", "
334 from_hu_conv = from_hu_conv + ", "
335 conv.var_name = ty_info.var_name + "_" + chr(idx + ord("a"))
336 conv_map = self.map_type_with_info(conv, False, None, is_free, holds_ref)
337 to_hu_conv_pfx = to_hu_conv_pfx + conv.java_ty + " " + ty_info.var_name + "_" + chr(idx + ord("a")) + " = " + "bindings." + self.tuple_types[ty_info.rust_obj][1] + "_get_" + chr(idx + ord("a")) + "(" + ty_info.var_name + ");\n"
338 if conv_map.to_hu_conv is not None:
339 to_hu_conv_pfx = to_hu_conv_pfx + conv_map.to_hu_conv + ";\n"
340 to_hu_conv_sfx = to_hu_conv_sfx + conv_map.to_hu_conv_name
342 to_hu_conv_sfx = to_hu_conv_sfx + ty_info.var_name + "_" + chr(idx + ord("a"))
343 if conv_map.from_hu_conv is not None:
344 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")))
345 if conv_map.from_hu_conv[1] != "":
346 from_hu_conv = from_hu_conv + "/*XXX: " + conv_map.from_hu_conv[1] + "*/"
348 from_hu_conv = from_hu_conv + ty_info.var_name + "." + chr(idx + ord("a"))
350 if conv.is_native_primitive:
352 elif (conv_map.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns:
353 accessor = ty_info.var_name + "_ref->" + chr(idx + ord("a"))
354 clone_ret_str = clone_ret_str + "\n" + accessor + " = " + conv_map.rust_obj.replace("LDK", "") + "_clone(&" + accessor + ");"
356 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
357 if not ty_info.is_ptr and not holds_ref:
358 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 = ", ";")
359 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:
360 ret_conv = (ret_conv[0], ret_conv[1] + clone_ret_str)
361 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
362 arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
364 ret_conv_name = "(long)" + ty_info.var_name + "_ref",
365 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 + ")", ""))
366 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
367 arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
368 ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";"), ret_conv_name = ty_info.var_name + "_ref",
369 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 + ")", ""))
371 # The manually-defined types - TxOut and Transaction
372 assert ty_info.rust_obj == "LDKTxOut"
373 if not ty_info.is_ptr and not holds_ref:
374 ret_conv = ("LDKTxOut* " + ty_info.var_name + "_ref = MALLOC(sizeof(LDKTxOut), \"LDKTxOut\");\n*" + ty_info.var_name + "_ref = ", ";")
376 ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";")
377 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
378 arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
379 ret_conv = ret_conv, ret_conv_name = "(long)" + ty_info.var_name + "_ref",
380 to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_conv = new " +ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");",
381 to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = (ty_info.var_name + ".ptr", ""))
384 if ty_info.rust_obj in self.complex_enums:
385 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
386 arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
387 arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
388 ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name,
389 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 + ");",
390 to_hu_conv_name = ty_info.var_name + "_hu_conv",
391 from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")"))
392 elif ty_info.rust_obj in self.trait_structs:
393 if ty_info.rust_obj.replace("LDK", "") + "_clone" in self.clone_fns:
394 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
395 arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
396 arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
397 ret_conv = (ty_info.rust_obj + " *" + ty_info.var_name + "_clone = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n" +
398 "*" + ty_info.var_name + "_clone = " + ty_info.rust_obj.replace("LDK", "") + "_clone(", ");"),
399 ret_conv_name = "(long)" + ty_info.var_name + "_clone",
400 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);",
401 to_hu_conv_name = "ret_hu_conv",
402 from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")"))
404 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
405 arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
406 arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
407 ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name,
408 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);",
409 to_hu_conv_name = "ret_hu_conv",
410 from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")"))
411 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
412 arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
413 arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
414 ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name,
415 to_hu_conv = "TODO 3", to_hu_conv_name = None, from_hu_conv = None) # its a pointer, no conv needed
416 assert False # We should have handled every case by now.