(self)
| 2233 | return dis._get_instructions_bytes(code) |
| 2234 | |
| 2235 | def test_start_offset(self): |
| 2236 | # When no extended args are present, |
| 2237 | # start_offset should be equal to offset |
| 2238 | |
| 2239 | instructions = list(dis.Bytecode(_f)) |
| 2240 | for instruction in instructions: |
| 2241 | self.assertEqual(instruction.offset, instruction.start_offset) |
| 2242 | |
| 2243 | def last_item(iterable): |
| 2244 | return functools.reduce(lambda a, b : b, iterable) |
| 2245 | |
| 2246 | code = bytes([ |
| 2247 | opcode.opmap["LOAD_FAST"], 0x00, |
| 2248 | opcode.opmap["EXTENDED_ARG"], 0x01, |
| 2249 | opcode.opmap["POP_JUMP_IF_TRUE"], 0xFF, |
| 2250 | ]) |
| 2251 | labels_map = dis._make_labels_map(code) |
| 2252 | jump = last_item(self.get_instructions(code)) |
| 2253 | self.assertEqual(4, jump.offset) |
| 2254 | self.assertEqual(2, jump.start_offset) |
| 2255 | |
| 2256 | code = bytes([ |
| 2257 | opcode.opmap["LOAD_FAST"], 0x00, |
| 2258 | opcode.opmap["EXTENDED_ARG"], 0x01, |
| 2259 | opcode.opmap["EXTENDED_ARG"], 0x01, |
| 2260 | opcode.opmap["EXTENDED_ARG"], 0x01, |
| 2261 | opcode.opmap["POP_JUMP_IF_TRUE"], 0xFF, |
| 2262 | opcode.opmap["CACHE"], 0x00, |
| 2263 | ]) |
| 2264 | jump = last_item(self.get_instructions(code)) |
| 2265 | self.assertEqual(8, jump.offset) |
| 2266 | self.assertEqual(2, jump.start_offset) |
| 2267 | |
| 2268 | code = bytes([ |
| 2269 | opcode.opmap["LOAD_FAST"], 0x00, |
| 2270 | opcode.opmap["EXTENDED_ARG"], 0x01, |
| 2271 | opcode.opmap["POP_JUMP_IF_TRUE"], 0xFF, |
| 2272 | opcode.opmap["CACHE"], 0x00, |
| 2273 | opcode.opmap["EXTENDED_ARG"], 0x01, |
| 2274 | opcode.opmap["EXTENDED_ARG"], 0x01, |
| 2275 | opcode.opmap["EXTENDED_ARG"], 0x01, |
| 2276 | opcode.opmap["POP_JUMP_IF_TRUE"], 0xFF, |
| 2277 | opcode.opmap["CACHE"], 0x00, |
| 2278 | ]) |
| 2279 | instructions = list(self.get_instructions(code)) |
| 2280 | # 1st jump |
| 2281 | self.assertEqual(4, instructions[2].offset) |
| 2282 | self.assertEqual(2, instructions[2].start_offset) |
| 2283 | # 2nd jump |
| 2284 | self.assertEqual(14, instructions[6].offset) |
| 2285 | self.assertEqual(8, instructions[6].start_offset) |
| 2286 | |
| 2287 | def test_cache_offset_and_end_offset(self): |
| 2288 | code = bytes([ |
nothing calls this directly
no test coverage detected