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bpo-1875: Raise SyntaxError in invalid blocks that will be optimised away (GH-13332)

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Move the check for dead conditionals (if 0) to the peephole optimizer
and make sure that the code block is still compiled to report any
existing syntax errors within.
This commit is contained in:
Pablo Galindo 2019-05-17 11:37:08 +01:00 • committed by GitHub
parent a8b46944d7
commit af8646c805
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4 changed files with 33 additions and 9 deletions
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14
Lib/test/test_syntax.py
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@ -696,6 +696,20 @@ class SyntaxTestCase(unittest.TestCase):
def test_break_outside_loop(self):
self._check_error("break", "outside loop")
def test_yield_outside_function(self):
self._check_error("if 0: yield", "outside function")
self._check_error("class C:\n if 0: yield", "outside function")
def test_return_outside_function(self):
self._check_error("if 0: return", "outside function")
self._check_error("class C:\n if 0: return", "outside function")
def test_break_outside_loop(self):
self._check_error("if 0: break", "outside loop")
def test_continue_outside_loop(self):
self._check_error("if 0: continue", "not properly in loop")
def test_unexpected_indent(self):
self._check_error("foo()\n bar()\n", "unexpected indent",
subclass=IndentationError)