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Add bound check for list and range (#185) #255

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sb10q merged 1 commits from bound_check into master 2024-08-17 17:37:19 +08:00
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nac3standalone/demo/src/lists.py
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@ -229,7 +229,7 @@ def list_slice_assignment():
bl5[3:-5] = []
output_int32_list([int32(b) for b in bl5])
bl6 = bl[:]
bl6[3:-5] = [True, False, False]
bl6[3:-5] = [True, False]
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pca006132 commented 2022-04-05 19:14:36 +08:00
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what is this?

what is this?
ychenfo commented 2022-04-06 00:05:21 +08:00
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This is the 'fix broken test' commit. This test should not pass because the length of bl6 is 10, so bl[3:-5] is bl[3,5], which has length 2, so this test is actually extending the list, which is not supported.

Previously this test happened to accidentally pass because we do not have the check on the list slice assignment yet, and the value of the assignment accidentally make the test pass. In fact, just by changing the bl6[3:-5] = [True, False, False] to bl6[3:-5] = [True, False, True] or something else, this test will fail before this PR.

This is the 'fix broken test' commit. This test should not pass because the length of `bl6` is 10, so `bl[3:-5]` is `bl[3,5]`, which has length 2, so this test is actually extending the list, which is not supported. Previously this test happened to accidentally pass because we do not have the check on the list slice assignment yet, and the value of the assignment accidentally make the test pass. In fact, just by changing the `bl6[3:-5] = [True, False, False]` to `bl6[3:-5] = [True, False, True]` or something else, this test will fail before this PR.
output_int32_list([int32(b) for b in bl6])
bl7 = bl[:]
bl7[:-2] = [False]