1 from bindingstypes import ConvInfo
3 class TypeMappingGenerator:
5 def __init__(self, java_c_types, consts, 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.opaque_structs = opaque_structs
10 self.clone_fns = clone_fns
11 self.unitary_enums = unitary_enums
12 self.trait_structs = trait_structs
13 self.complex_enums = complex_enums
14 self.result_types = result_types
15 self.tuple_types = tuple_types
17 def map_type(self, fn_arg, print_void, ret_arr_len, is_free, holds_ref):
18 ty_info = self.java_c_types(fn_arg, ret_arr_len)
19 mapped_info = 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")
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 get_ptr_call = self.consts.get_native_arr_ptr_call(ty_info)
125 if get_ptr_call is not None:
126 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")
127 ret_conv = (ret_conv[0], ret_conv[1] + "for (size_t " + idxc + " = 0; " + idxc + " < " + arr_name + "_var." + arr_len + "; " + idxc + "++) {\n")
128 ret_conv = (ret_conv[0], ret_conv[1] + "\t" + subty.ret_conv[0].replace("\n", "\n\t"))
129 ret_conv = (ret_conv[0], ret_conv[1] + arr_name + "_var." + ty_info.arr_access + "[" + idxc + "]" + subty.ret_conv[1].replace("\n", "\n\t"))
130 if get_ptr_call is not None:
131 ret_conv = (ret_conv[0], ret_conv[1] + "\n\t" + arr_name + "_arr_ptr[" + idxc + "] = " + subty.ret_conv_name + ";\n}")
133 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}")
134 cleanup = self.consts.release_native_arr_ptr_call(ty_info, arr_name + "_arr", arr_name + "_arr_ptr")
135 if cleanup is not None:
136 ret_conv = (ret_conv[0], ret_conv[1] + "\n" + cleanup + ";")
138 # XXX: The commented if's are a bit smarter freeing, but we need to be a nudge smarter still
139 # Note that we don't drop the full vec here - we're passing ownership to java (or have cloned) or free'd by now!
140 ret_conv = (ret_conv[0], ret_conv[1] + "\nFREE(" + arr_name + "_var." + ty_info.arr_access + ");")
141 #if subty.rust_obj is not None and subty.rust_obj in self.opaque_structs:
142 # ret_conv = (ret_conv[0], ret_conv[1] + "\nFREE(" + arr_name + "_var." + ty_info.arr_access + ");")
144 # ret_conv = (ret_conv[0], ret_conv[1] + "\n" + ty_info.rust_obj.replace("LDK", "") + "_free(" + arr_name + "_var);")
147 to_hu_conv_name = None
148 if subty.to_hu_conv is not None:
149 to_hu_conv = ty_info.java_hu_ty + " " + conv_name + "_arr = new " + ty_info.subty.java_hu_ty.split("<")[0] + "[" + arr_name + ".length];\n"
150 to_hu_conv = to_hu_conv + "for (int " + idxc + " = 0; " + idxc + " < " + arr_name + ".length; " + idxc + "++) {\n"
151 to_hu_conv = to_hu_conv + "\t" + subty.java_ty + " " + conv_name + " = " + arr_name + "[" + idxc + "];\n"
152 to_hu_conv = to_hu_conv + "\t" + subty.to_hu_conv.replace("\n", "\n\t") + "\n"
153 to_hu_conv = to_hu_conv + "\t" + conv_name + "_arr[" + idxc + "] = " + subty.to_hu_conv_name + ";\n}"
154 to_hu_conv_name = conv_name + "_arr"
156 if subty.from_hu_conv is not None:
157 if subty.java_ty == "long" and subty.java_hu_ty != "long":
158 from_hu_conv = ("Arrays.stream(" + arr_name + ").mapToLong(" + conv_name + " -> " + subty.from_hu_conv[0] + ").toArray()", "/* TODO 2 " + subty.java_hu_ty + " */")
159 elif subty.java_ty == "long":
160 from_hu_conv = ("Arrays.stream(" + arr_name + ").map(" + conv_name + " -> " + subty.from_hu_conv[0] + ").toArray()", "/* TODO 2 " + subty.java_hu_ty + " */")
162 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 + " */")
164 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
165 arg_conv = arg_conv, arg_conv_name = arg_conv_name, arg_conv_cleanup = arg_conv_cleanup,
166 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)
167 elif ty_info.java_ty == "String":
168 if ty_info.arr_access is None:
169 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
170 arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None,
171 ret_conv = ("const char* " + ty_info.var_name + "_str = ",
172 ";\njstring " + ty_info.var_name + "_conv = " + self.consts.str_ref_to_c_call(ty_info.var_name + "_str", "strlen(" + ty_info.var_name + "_str)") + ";"),
173 ret_conv_name = ty_info.var_name + "_conv",
174 to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
176 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
177 arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None,
178 ret_conv = ("LDKStr " + ty_info.var_name + "_str = ",
179 ";\njstring " + ty_info.var_name + "_conv = " + self.consts.str_ref_to_c_call(ty_info.var_name + "_str." + ty_info.arr_access, ty_info.var_name + "_str." + ty_info.arr_len) + ";"),
180 ret_conv_name = ty_info.var_name + "_conv", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
181 elif ty_info.var_name == "" and not print_void:
182 # We don't have a parameter name, and want one, just call it arg
183 if ty_info.rust_obj is not None:
184 assert(not is_free or ty_info.rust_obj not in self.opaque_structs)
185 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
186 arg_conv = ty_info.rust_obj + " arg_conv = *(" + ty_info.rust_obj + "*)arg;\nFREE((void*)arg);",
187 arg_conv_name = "arg_conv", arg_conv_cleanup = None,
188 ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 7", to_hu_conv_name = None, from_hu_conv = None)
191 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
192 arg_conv = None, arg_conv_name = "arg", arg_conv_cleanup = None,
193 ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 8", to_hu_conv_name = None, from_hu_conv = None)
194 elif ty_info.rust_obj is None:
195 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
196 arg_conv = None, arg_conv_name = ty_info.var_name, arg_conv_cleanup = None,
197 ret_conv = None, ret_conv_name = None, to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
199 if ty_info.var_name == "":
200 ty_info.var_name = "ret"
202 if ty_info.rust_obj in self.opaque_structs:
203 opaque_arg_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv;\n"
204 opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.inner = (void*)(" + ty_info.var_name + " & (~1));\n"
205 if ty_info.is_ptr and holds_ref:
206 opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.is_owned = false;"
208 opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.is_owned = (" + ty_info.var_name + " & 1) || (" + ty_info.var_name + " == 0);"
209 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:
210 if (ty_info.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns:
211 # 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.
212 opaque_arg_conv = opaque_arg_conv + "\nif (" + ty_info.var_name + "_conv.inner != NULL)\n"
213 opaque_arg_conv = opaque_arg_conv + "\t" + ty_info.var_name + "_conv = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&" + ty_info.var_name + "_conv);"
214 elif ty_info.passed_as_ptr:
215 opaque_arg_conv = opaque_arg_conv + "\n// Warning: we may need a move here but can't clone!"
217 opaque_ret_conv_suf = ";\n"
218 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
219 opaque_ret_conv_suf = opaque_ret_conv_suf + "if (" + ty_info.var_name + "->inner != NULL)\n"
220 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"
221 elif not holds_ref and ty_info.is_ptr:
222 opaque_ret_conv_suf = opaque_ret_conv_suf + "// Warning: we may need a move here but can't clone!\n"
224 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"
225 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"
227 opaque_ret_conv_suf = opaque_ret_conv_suf + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner & ~1;"
229 opaque_ret_conv_suf = opaque_ret_conv_suf + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner;\n"
230 opaque_ret_conv_suf = opaque_ret_conv_suf + "if (" + ty_info.var_name + "_var.is_owned) {\n"
231 opaque_ret_conv_suf = opaque_ret_conv_suf + "\t" + ty_info.var_name + "_ref |= 1;\n"
232 opaque_ret_conv_suf = opaque_ret_conv_suf + "}"
235 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
236 arg_conv = opaque_arg_conv, arg_conv_name = "&" + ty_info.var_name + "_conv", arg_conv_cleanup = None,
237 ret_conv = (ty_info.rust_obj + " " + ty_info.var_name + "_var = *", opaque_ret_conv_suf),
238 ret_conv_name = ty_info.var_name + "_ref",
239 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),
240 to_hu_conv_name = ty_info.var_name + "_hu_conv",
241 from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")"))
243 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
244 arg_conv = opaque_arg_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
245 ret_conv = (ty_info.rust_obj + " " + ty_info.var_name + "_var = ", opaque_ret_conv_suf),
246 ret_conv_name = ty_info.var_name + "_ref",
247 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),
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 if not ty_info.is_ptr:
252 if ty_info.rust_obj in self.unitary_enums:
253 (ret_pfx, ret_sfx) = self.consts.c_unitary_enum_to_native_call(ty_info)
254 (arg_pfx, arg_sfx) = self.consts.native_unitary_enum_to_c_call(ty_info)
255 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
256 arg_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv = " + arg_pfx + ty_info.var_name + arg_sfx + ";",
257 arg_conv_name = ty_info.var_name + "_conv",
258 arg_conv_cleanup = None,
259 ret_conv = (ty_info.c_ty + " " + ty_info.var_name + "_conv = " + ret_pfx, ret_sfx + ";"),
260 ret_conv_name = ty_info.var_name + "_conv", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
261 base_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv = *(" + ty_info.rust_obj + "*)(((uint64_t)" + ty_info.var_name + ") & ~1);"
262 if ty_info.rust_obj in self.trait_structs:
263 ret_conv = (ty_info.rust_obj + "* ret = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*ret = ", ";")
265 if (ty_info.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns:
266 ret_conv = (ret_conv[0] + ty_info.rust_obj.replace("LDK", "") + "_clone(&", ");")
268 ret_conv = (ret_conv[0], "; // XXX: We likely need to clone here, but no _clone fn is available!")
270 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
271 if needs_full_clone and (ty_info.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns:
272 base_conv = base_conv + "\n" + ty_info.var_name + "_conv = " + ty_info.rust_obj.replace("LDK", "") + "_clone(" + ty_info.var_name + ");"
274 base_conv = base_conv + self.consts.trait_struct_inc_refcnt(ty_info)
276 base_conv = base_conv + "// Warning: we may need a move here but can't do a full clone!\n"
278 base_conv = base_conv + "\n" + "FREE((void*)" + ty_info.var_name + ");"
279 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
280 arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
281 ret_conv = ret_conv, ret_conv_name = "(long)ret",
282 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);",
283 to_hu_conv_name = "ret_hu_conv",
284 from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")"))
285 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
287 if not ty_info.var_name.startswith("ret") or "res" in ty_info.var_name: # XXX: This is a stupid hack
288 needs_full_clone = False
289 if needs_full_clone and (ty_info.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns:
290 base_conv = base_conv + "\n" + ty_info.var_name + "_conv = " + ty_info.rust_obj.replace("LDK", "") + "_clone((" + ty_info.rust_obj + "*)" + ty_info.var_name + ");"
291 elif needs_full_clone:
292 base_conv = base_conv + "\n// Warning: we may need a move here but can't do a full clone!"
293 if not needs_full_clone and ty_info.rust_obj != "LDKu8slice":
294 # Don't bother free'ing slices passed in - Rust doesn't auto-free the
295 # underlying unlike Vecs, and it gives Java more freedom.
296 base_conv = base_conv + "\nFREE((void*)" + ty_info.var_name + ");"
297 if ty_info.rust_obj in self.complex_enums:
298 ret_conv = ("long " + ty_info.var_name + "_ref = ((long)&", ") | 1;")
300 ret_conv = (ty_info.rust_obj + " *" + ty_info.var_name + "_copy = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n", "")
301 if ty_info.requires_clone == True: # Set in object array mapping
302 if (ty_info.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns:
303 ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&", ");\n")
305 ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = ", "; // XXX: We likely need to clone here, but no _clone fn is available!\n")
307 ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = ", ";\n")
308 ret_conv = (ret_conv[0], ret_conv[1] + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_copy;")
309 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
310 arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
311 ret_conv = ret_conv, ret_conv_name = ty_info.var_name + "_ref",
312 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);",
313 to_hu_conv_name = ty_info.var_name + "_hu_conv", from_hu_conv = (ty_info.var_name + ".ptr", ""))
314 if ty_info.rust_obj in self.result_types:
316 # If we're trying to return a ref, we have to clone.
317 # We just blindly assume its implemented and let the compiler fail if its not.
318 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 = ", ";")
319 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);")
321 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 = ", ";")
322 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
323 arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
324 ret_conv = ret_conv, ret_conv_name = "(long)" + ty_info.var_name + "_conv",
325 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 + ");",
326 to_hu_conv_name = ty_info.var_name + "_hu_conv", from_hu_conv = (ty_info.var_name + " != null ? " + ty_info.var_name + ".ptr : 0", ""))
327 if ty_info.rust_obj in self.tuple_types:
328 from_hu_conv = "bindings." + self.tuple_types[ty_info.rust_obj][1].replace("LDK", "") + "_new("
330 to_hu_conv_sfx = ty_info.java_hu_ty + " " + ty_info.var_name + "_conv = new " + ty_info.java_hu_ty + "("
332 for idx, conv in enumerate(self.tuple_types[ty_info.rust_obj][0]):
334 to_hu_conv_sfx = to_hu_conv_sfx + ", "
335 from_hu_conv = from_hu_conv + ", "
336 conv.var_name = ty_info.var_name + "_" + chr(idx + ord("a"))
337 conv_map = self.map_type_with_info(conv, False, None, is_free, holds_ref)
338 to_hu_conv_pfx = to_hu_conv_pfx + conv.java_ty + " " + ty_info.var_name + "_" + chr(idx + ord("a")) + " = "
339 if not conv.is_native_primitive and (conv_map.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns and conv_map.rust_obj == "LDKTxOut":
340 to_hu_conv_pfx = to_hu_conv_pfx + "bindings." + conv_map.rust_obj.replace("LDK", "") + "_clone("
341 to_hu_conv_pfx = to_hu_conv_pfx + "bindings." + self.tuple_types[ty_info.rust_obj][1] + "_get_" + chr(idx + ord("a")) + "(" + ty_info.var_name + ")"
342 if not conv.is_native_primitive and (conv_map.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns and conv_map.rust_obj == "LDKTxOut": # XXX
343 to_hu_conv_pfx = to_hu_conv_pfx + ")"
344 to_hu_conv_pfx = to_hu_conv_pfx + ";\n"
345 if conv_map.to_hu_conv is not None:
346 to_hu_conv_pfx = to_hu_conv_pfx + conv_map.to_hu_conv + ";\n"
347 to_hu_conv_sfx = to_hu_conv_sfx + conv_map.to_hu_conv_name
349 to_hu_conv_sfx = to_hu_conv_sfx + ty_info.var_name + "_" + chr(idx + ord("a"))
350 if conv_map.from_hu_conv is not None:
351 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")))
352 if conv_map.from_hu_conv[1] != "":
353 from_hu_conv = from_hu_conv + "/*XXX: " + conv_map.from_hu_conv[1] + "*/"
355 from_hu_conv = from_hu_conv + ty_info.var_name + "." + chr(idx + ord("a"))
357 if conv.is_native_primitive:
359 elif (conv_map.rust_obj.replace("LDK", "") + "_clone") in self.clone_fns:
360 accessor = ty_info.var_name + "_ref->" + chr(idx + ord("a"))
361 clone_ret_str = clone_ret_str + "\n" + accessor + " = " + conv_map.rust_obj.replace("LDK", "") + "_clone(&" + accessor + ");"
363 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
364 if not ty_info.is_ptr and not holds_ref:
365 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 = ", ";")
366 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:
367 ret_conv = (ret_conv[0], ret_conv[1] + clone_ret_str)
368 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
369 arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
371 ret_conv_name = "(long)" + ty_info.var_name + "_ref",
372 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 + ")", ""))
373 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
374 arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
375 ret_conv = ("long " + ty_info.var_name + "_ref = (long)(&", ") | 1;"), ret_conv_name = ty_info.var_name + "_ref",
376 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 + ")", ""))
378 # The manually-defined types - TxOut and Transaction
379 assert ty_info.rust_obj == "LDKTxOut"
380 if not ty_info.is_ptr and not holds_ref:
381 ret_conv = ("LDKTxOut* " + ty_info.var_name + "_ref = MALLOC(sizeof(LDKTxOut), \"LDKTxOut\");\n*" + ty_info.var_name + "_ref = ", ";")
383 ret_conv = ("long " + ty_info.var_name + "_ref = ((long)&", ") | 1;")
384 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
385 arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
386 ret_conv = ret_conv, ret_conv_name = "(long)" + ty_info.var_name + "_ref",
387 to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_conv = new " +ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");",
388 to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = (ty_info.var_name + ".ptr", ""))
391 if ty_info.rust_obj in self.complex_enums:
392 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
393 arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
394 arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
395 ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name,
396 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 + ");",
397 to_hu_conv_name = ty_info.var_name + "_hu_conv",
398 from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")"))
399 elif ty_info.rust_obj in self.trait_structs:
400 if ty_info.rust_obj.replace("LDK", "") + "_clone" in self.clone_fns:
401 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
402 arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
403 arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
404 ret_conv = (ty_info.rust_obj + " *" + ty_info.var_name + "_clone = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n" +
405 "*" + ty_info.var_name + "_clone = " + ty_info.rust_obj.replace("LDK", "") + "_clone(", ");"),
406 ret_conv_name = "(long)" + ty_info.var_name + "_clone",
407 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);",
408 to_hu_conv_name = "ret_hu_conv",
409 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 = 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);",
416 to_hu_conv_name = "ret_hu_conv",
417 from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")"))
418 return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
419 arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)(" + ty_info.var_name + " & ~1);",
420 arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
421 ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name,
422 to_hu_conv = "TODO 3", to_hu_conv_name = None, from_hu_conv = None) # its a pointer, no conv needed
423 assert False # We should have handled every case by now.