82 lines
1.6 KiB
Python
82 lines
1.6 KiB
Python
# Test scoping rules for assignment expression :=.
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# Test that var is closed over (assigned to in the scope of scope0).
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def scope0():
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any((var0 := i) for i in range(2))
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return var0
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print("scope0")
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print(scope0())
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print(globals().get("var0", None))
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# Test that var1 gets closed over correctly in the list comprehension.
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def scope1():
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var1 = 0
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dummy1 = 1
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dummy2 = 1
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print([var1 := i for i in [0, 1] if i > var1])
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print(var1)
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print("scope1")
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scope1()
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print(globals().get("var1", None))
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# Test that var2 in the comprehension honours the global declaration.
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def scope2():
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global var2
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print([var2 := i for i in range(2)])
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print(globals().get("var2", None))
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print("scope2")
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scope2()
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print(globals().get("var2", None))
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# Test that var1 in the comprehension remains local to inner1.
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def scope3():
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global var3
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def inner3():
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print([var3 := i for i in range(2)])
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inner3()
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print(globals().get("var3", None))
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print("scope3")
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scope3()
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print(globals().get("var3", None))
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# Test that var4 in the comprehension honours the global declarations.
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def scope4():
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global var4
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def inner4():
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global var4
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print([var4 := i for i in range(2)])
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inner4()
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print(var4)
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print("scope4")
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scope4()
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print(globals().get("var4", None))
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# Test that var5 in the comprehension honours the nonlocal declaration.
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def scope5():
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def inner5():
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nonlocal var5
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print([var5 := i for i in range(2)])
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inner5()
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print(var5)
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var5 = 0 # force var5 to be a local to scope5
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print("scope5")
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scope5()
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print(globals().get("var5", None))
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