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| author | Benjamin Peterson <benjamin@python.org> | 2014-04-10 04:23:18 (GMT) |
|---|---|---|
| committer | Benjamin Peterson <benjamin@python.org> | 2014-04-10 04:23:18 (GMT) |
| commit | 00109c9bd3b5c14e8281addc79a79fda3c310806 (patch) | |
| tree | b22473564fd785adc8837110ac81d91ed91f34f6 /Lib | |
| parent | da952f3ff43aad1a4602b1bf6e93fd24f0a159f6 (diff) | |
| download | cpython-00109c9bd3b5c14e8281addc79a79fda3c310806.zip cpython-00109c9bd3b5c14e8281addc79a79fda3c310806.tar.gz cpython-00109c9bd3b5c14e8281addc79a79fda3c310806.tar.bz2 | |
teach 2to3 about 'yield from'
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/lib2to3/Grammar.txt | 3 | ||||
| -rw-r--r-- | Lib/lib2to3/tests/test_parser.py | 7 |
2 files changed, 9 insertions, 1 deletions
diff --git a/Lib/lib2to3/Grammar.txt b/Lib/lib2to3/Grammar.txt index bc084e9..e667bcd 100644 --- a/Lib/lib2to3/Grammar.txt +++ b/Lib/lib2to3/Grammar.txt @@ -155,4 +155,5 @@ testlist1: test (',' test)* # not used in grammar, but may appear in "node" passed from Parser to Compiler encoding_decl: NAME -yield_expr: 'yield' [testlist] +yield_expr: 'yield' [yield_arg] +yield_arg: 'from' test | testlist diff --git a/Lib/lib2to3/tests/test_parser.py b/Lib/lib2to3/tests/test_parser.py index 2e5af45..9c5463a 100644 --- a/Lib/lib2to3/tests/test_parser.py +++ b/Lib/lib2to3/tests/test_parser.py @@ -50,6 +50,13 @@ class TestMatrixMultiplication(GrammarTest): self.validate("a @= b") +class TestYieldFrom(GrammarTest): + def test_matrix_multiplication_operator(self): + self.validate("yield from x") + self.validate("(yield from x) + y") + self.invalid_syntax("yield from") + + class TestRaiseChanges(GrammarTest): def test_2x_style_1(self): self.validate("raise") |