diff options
| -rw-r--r-- | Lib/dis.py | 9 | ||||
| -rw-r--r-- | Lib/test/test_dis.py | 24 | ||||
| -rw-r--r-- | Misc/NEWS | 2 |
3 files changed, 35 insertions, 0 deletions
@@ -16,6 +16,8 @@ del _opcodes_all _have_code = (types.MethodType, types.FunctionType, types.CodeType, classmethod, staticmethod, type) +FORMAT_VALUE = opmap['FORMAT_VALUE'] + def _try_compile(source, name): """Attempts to compile the given source, first as an expression and then as a statement if the first approach fails. @@ -314,6 +316,13 @@ def _get_instructions_bytes(code, varnames=None, names=None, constants=None, argrepr = argval elif op in hasfree: argval, argrepr = _get_name_info(arg, cells) + elif op == FORMAT_VALUE: + argval = ((None, str, repr, ascii)[arg & 0x3], bool(arg & 0x4)) + argrepr = ('', 'str', 'repr', 'ascii')[arg & 0x3] + if argval[1]: + if argrepr: + argrepr += ', ' + argrepr += 'with format' yield Instruction(opname[op], op, arg, argval, argrepr, offset, starts_line, is_jump_target) diff --git a/Lib/test/test_dis.py b/Lib/test/test_dis.py index f319336..b9b5ac2 100644 --- a/Lib/test/test_dis.py +++ b/Lib/test/test_dis.py @@ -301,6 +301,27 @@ dis_traceback = """\ TRACEBACK_CODE.co_firstlineno + 4, TRACEBACK_CODE.co_firstlineno + 5) +def _fstring(a, b, c, d): + return f'{a} {b:4} {c!r} {d!r:4}' + +dis_fstring = """\ +%3d 0 LOAD_FAST 0 (a) + 2 FORMAT_VALUE 0 + 4 LOAD_CONST 1 (' ') + 6 LOAD_FAST 1 (b) + 8 LOAD_CONST 2 ('4') + 10 FORMAT_VALUE 4 (with format) + 12 LOAD_CONST 1 (' ') + 14 LOAD_FAST 2 (c) + 16 FORMAT_VALUE 2 (repr) + 18 LOAD_CONST 1 (' ') + 20 LOAD_FAST 3 (d) + 22 LOAD_CONST 2 ('4') + 24 FORMAT_VALUE 6 (repr, with format) + 26 BUILD_STRING 7 + 28 RETURN_VALUE +""" % (_fstring.__code__.co_firstlineno + 1,) + def _g(x): yield x @@ -404,6 +425,9 @@ class DisTests(unittest.TestCase): gen_disas = self.get_disassembly(_g(1)) # Disassemble generator itself self.assertEqual(gen_disas, gen_func_disas) + def test_disassemble_fstring(self): + self.do_disassembly_test(_fstring, dis_fstring) + def test_dis_none(self): try: del sys.last_traceback @@ -62,6 +62,8 @@ Core and Builtins Library ------- +- Issue #28317: The disassembler now decodes FORMAT_VALUE argument. + - Issue #26293: Fixed writing ZIP files that starts not from the start of the file. Offsets in ZIP file now are relative to the start of the archive in conforming to the specification. |