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Address dead code in lambda ifelse

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rocky
2017-10-10 19:05:16 -04:00
parent 92f5981661
commit b4426931ef
4 changed files with 14 additions and 3 deletions
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test/bytecode_2.7/02_ifelse_lambda.pyc
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test/bytecode_3.6/02_ifelse_lambda.pyc
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11
test/simple_source/branching/02_ifelse_lambda.py
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@@ -3,3 +3,14 @@
f = lambda x: 1 if x<2 else 3 f = lambda x: 1 if x<2 else 3
f(5) f(5)
# If that wasn't enough ...
# Python will create dead code
# in the below. So we must make sure
# not to include the else expression
g = lambda: 1 if True else 3
g()
h = lambda: 1 if False else 3
h()

6
uncompyle6/semantics/consts.py
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@@ -175,9 +175,9 @@ TABLE_DIRECT = {
'ret_cond_not': ( '%p if not %p else %p', (2, 27), (0, 22), (-1, 27) ), 'ret_cond_not': ( '%p if not %p else %p', (2, 27), (0, 22), (-1, 27) ),
'conditional_lambda': ( '%c if %c else %c', 2, 0, 4), 'conditional_lambda': ( '%c if %c else %c', 2, 0, 4),
# Sometiems a semicolon is neede because Python 3.x can have be # Python 3.x can have be dead code as a result of its optimization?
# dead code as a result of its optimization? # So we'll add a # at the end of the return lambda so the rest is ignored
'return_lambda': ('%c', 0), 'return_lambda': ('%c # Avoid dead code: ', 0),
'compare': ( '%p %[-1]{pattr.replace("-", " ")} %p', (0, 19), (1, 19) ), 'compare': ( '%p %[-1]{pattr.replace("-", " ")} %p', (0, 19), (1, 19) ),
'cmp_list': ( '%p %p', (0, 29), (1, 30)), 'cmp_list': ( '%p %p', (0, 29), (1, 30)),