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|
discard """
cmd: "nim c --gc:arc --exceptions:goto $file"
output: '''
B1
B2
catch
A1
1
B1
B2
catch
A1
A2
0
B1
B2
A1
1
B1
B2
A1
A2
3
A
B
C
'''
"""
# More thorough test of return-in-finaly
var raiseEx = true
var returnA = true
var returnB = false
proc main: int =
try: #A
try: #B
if raiseEx:
raise newException(OSError, "")
return 3
finally: #B
echo "B1"
if returnB:
return 2
echo "B2"
except OSError: #A
echo "catch"
finally: #A
echo "A1"
if returnA:
return 1
echo "A2"
for x in [true, false]:
for y in [true, false]:
# echo "raiseEx: " & $x
# echo "returnA: " & $y
# echo "returnB: " & $z
# in the original test returnB was set to true too and
# this leads to swallowing the OSError exception. This is
# somewhat compatible with Python but it's non-sense, 'finally'
# should not be allowed to swallow exceptions. The goto based
# implementation does something sane so we don't "correct" its
# behavior just to be compatible with v1.
raiseEx = x
returnA = y
echo main()
# Various tests of return nested in double try/except statements
proc test1() =
defer: echo "A"
try:
raise newException(OSError, "Problem")
except OSError:
return
test1()
proc test2() =
defer: echo "B"
try:
return
except OSError:
discard
test2()
proc test3() =
try:
try:
raise newException(OSError, "Problem")
except OSError:
return
finally:
echo "C"
test3()
|