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bpo-39702: Relax grammar restrictions on decorators (PEP 614) (GH-18570)

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Brandt Bucher 2020-03-03 14:25:44 -08:00 • committed by GitHub
parent 116fd4af73
commit be501ca241
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8 changed files with 534 additions and 537 deletions
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42
Lib/test/test_parser.py
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@ -226,6 +226,27 @@ class RoundtripLegalSyntaxTestCase(unittest.TestCase):
self.check_suite("@funcattrs()\n"
"def f(): pass")
self.check_suite("@False or x\n"
"def f(): pass")
self.check_suite("@d := x\n"
"def f(): pass")
self.check_suite("@lambda f: x(f)\n"
"def f(): pass")
self.check_suite("@[..., x, ...][1]\n"
"def f(): pass")
self.check_suite("@x(x)(x)\n"
"def f(): pass")
self.check_suite("@(x, x)\n"
"def f(): pass")
self.check_suite("@...\n"
"def f(): pass")
self.check_suite("@None\n"
"def f(): pass")
self.check_suite("@w @(x @y) @(z)\n"
"def f(): pass")
self.check_suite("@w[x].y.z\n"
"def f(): pass")
# keyword-only arguments
self.check_suite("def f(*, a): pass")
self.check_suite("def f(*, a = 5): pass")
@ -270,6 +291,27 @@ class RoundtripLegalSyntaxTestCase(unittest.TestCase):
"@decorator2\n"
"class foo():pass")
self.check_suite("@False or x\n"
"class C: pass")
self.check_suite("@d := x\n"
"class C: pass")
self.check_suite("@lambda f: x(f)\n"
"class C: pass")
self.check_suite("@[..., x, ...][1]\n"
"class C: pass")
self.check_suite("@x(x)(x)\n"
"class C: pass")
self.check_suite("@(x, x)\n"
"class C: pass")
self.check_suite("@...\n"
"class C: pass")
self.check_suite("@None\n"
"class C: pass")
self.check_suite("@w @(x @y) @(z)\n"
"class C: pass")
self.check_suite("@w[x].y.z\n"
"class C: pass")
def test_import_from_statement(self):
self.check_suite("from sys.path import *")
self.check_suite("from sys.path import dirname")