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Adding __delitem__ to dict #215

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Merged
sbinet merged 2 commits into from
Jan 14, 2023
Merged

Adding __delitem__ to dict #215

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348f19b
Adding __delitem__ to dict. Enables the 'del' command to delete items…
kellrott Jan 12, 2023
c89f95c
Adding more exception and testing to dict del command
kellrott Jan 13, 2023
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Adding more exception and testing to dict del command
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@kellrott
kellrott committed Jan 13, 2023
commit c89f95cc09a80afe30315a392ee7066303ebb2e1
15 changes: 8 additions & 7 deletions py/dict.go
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Original file line number Diff line number Diff line change
Expand Up @@ -191,14 +191,15 @@ func (d StringDict) M__getitem__(key Object) (Object, error) {

func (d StringDict) M__delitem__(key Object) (Object, error) {
str, ok := key.(String)
if ok {
_, ok := d[string(str)]
if ok {
delete(d, string(str))
return None, nil
}
if !ok {
return nil, ExceptionNewf(KeyError, "%v", key)
}
return nil, ExceptionNewf(KeyError, "%v", key)
_, ok = d[string(str)]
if !ok {
return nil, ExceptionNewf(KeyError, "%v", key)
}
delete(d, string(str))
return None, nil
}

func (d StringDict) M__setitem__(key, value Object) (Object, error) {
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4 changes: 4 additions & 0 deletions py/tests/dict.py
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Expand Up @@ -49,6 +49,10 @@
doc="del"
a = {'hello': 'world', 'hi': 'there'}
del a["hello"]
def doDel(d, key):
del d[key]
assertRaises(KeyError, lambda: doDel(a, "bob"))
assertRaises(KeyError, lambda: doDel(a, 123))
assert not a.__contains__('hello')
assert a.__contains__('hi')

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@sbinet sbinet Jan 13, 2023

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perhaps add a couple of cases that exercize the 2 ExceptionNewf branches ?

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