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3170ac7b33
Introduce `a.at(i)` and `a?.at(i)` as out-of-bounds resilient alternatives to `a[i]` and `a?[i]`. In addition, harmonize the effect of `?` on there expressions with its effect on member access (`a?.b`): if the prefix is null, the execution of the rest of the chain is shortcircuited.
85 lines
1.6 KiB
Plaintext
85 lines
1.6 KiB
Plaintext
main.py: Running...
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# p_list_subscript
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items=None, index=None:
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<PropertyError: main.txt:2:5-4:15: dereferencing a null access>
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items=None, index=1:
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<PropertyError: main.txt:2:5-4:15: dereferencing a null access>
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items=(), index=None:
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<PropertyError: computing index from null node>
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items=(a0), index=1:
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<PropertyError: main.txt:2:5-4:15: out-of-bounds AST list access>
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items=(b0 b1 b2), index=1:
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b1
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# p_list_at
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items=None, index=None:
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<PropertyError: main.txt:2:5-4:15: dereferencing a null access>
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items=None, index=1:
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<PropertyError: main.txt:2:5-4:15: dereferencing a null access>
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items=(), index=None:
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<PropertyError: computing index from null node>
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items=(a0), index=1:
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None
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items=(b0 b1 b2), index=1:
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b1
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# p_list_nc_subscript
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items=None, index=None:
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None
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items=None, index=1:
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None
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items=(), index=None:
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<PropertyError: computing index from null node>
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items=(a0), index=1:
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<PropertyError: main.txt:2:5-4:15: out-of-bounds AST list access>
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items=(b0 b1 b2), index=1:
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b1
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# p_list_nc_at
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items=None, index=None:
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None
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items=None, index=1:
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None
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items=(), index=None:
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<PropertyError: computing index from null node>
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items=(a0), index=1:
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None
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items=(b0 b1 b2), index=1:
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b1
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# p_array_subscript
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items=[a0], index=1:
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<PropertyError: main.txt:2:5-4:15: out-of-bounds array access>
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items=[b0. b1. b2], index=1:
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b1
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# p_array_at
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items=[a0], index=1:
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None
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items=[b0. b1. b2], index=1:
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b1
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# p_array_nc_subscript
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items=[a0], index=1:
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<PropertyError: main.txt:2:5-4:15: out-of-bounds array access>
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items=[b0. b1. b2], index=1:
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b1
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# p_array_nc_at
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items=[a0], index=1:
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None
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items=[b0. b1. b2], index=1:
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b1
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main.py: Done.
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Done
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