kopia lustrzana https://github.com/micropython/micropython
84 wiersze
1.7 KiB
Python
84 wiersze
1.7 KiB
Python
# test try-finally with return, where unwinding return has to go through
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# another try-finally which may affect the behaviour of the return
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# case where a simple try-finally executes during an unwinding return
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def f(x):
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try:
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try:
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if x:
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return 42
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finally:
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try:
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print(1)
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finally:
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print(2)
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print(3)
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print(4)
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finally:
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print(5)
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print(f(0))
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print(f(1))
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# case where an unwinding return is replaced by another one
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def f(x):
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try:
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try:
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if x:
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return 42
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finally:
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try:
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print(1)
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return 43
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finally:
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print(2)
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print(3)
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print(4)
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finally:
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print(5)
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print(f(0))
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print(f(1))
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# case where an unwinding return is cancelled by an exception
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def f(x):
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try:
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try:
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if x:
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return 42
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finally:
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try:
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print(1)
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raise ValueError # cancels any active return
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finally:
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print(2)
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print(3)
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print(4)
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finally:
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print(5)
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try:
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print(f(0))
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except:
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print('caught')
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try:
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print(f(1))
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except:
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print('caught')
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# case where an unwinding return is cancelled then resumed
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def f(x):
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try:
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try:
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if x:
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return 42
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finally:
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try:
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print(1)
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raise Exception # cancels any active return
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except: # cancels the exception and resumes any active return
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print(2)
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print(3)
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print(4)
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finally:
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print(5)
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print(f(0))
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print(f(1))
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