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Implement range object #87

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Merged
merged 4 commits into from
Sep 22, 2019
Merged

Implement range object #87

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0ff757f
Add __repr__, __str__ of range
HyeockJinKim Sep 20, 2019
c4de1c8
Add __eq__, __ne__ of range
HyeockJinKim Sep 20, 2019
33b1e40
Seperate range __repr__ for version constraint
HyeockJinKim Sep 20, 2019
d886727
Add tests for range object
HyeockJinKim Sep 20, 2019
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Add __eq__, __ne__ of range 
__eq__ compare length, start, step of range
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@HyeockJinKim
HyeockJinKim committed Sep 20, 2019
commit c4de1c83ca51ed5181fa27f498a88e14f29d4c1d
55 changes: 55 additions & 0 deletions py/range.go
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Original file line number Diff line number Diff line change
Expand Up @@ -196,3 +196,58 @@ func computeRangeLength(start, stop, step Int) Int {
var _ I__getitem__ = (*Range)(nil)
var _ I__iter__ = (*Range)(nil)
var _ I_iterator = (*RangeIterator)(nil)


func (a *Range) M__eq__(other Object) (Object, error) {
b, ok := other.(*Range)
if !ok {
return NotImplemented, nil
}

if a.Length != b.Length {
return False, nil
}

if a.Length == 0 {
return True, nil
}
if a.Start != b.Start {
return False, nil
}

if a.Step == 1 {
return True, nil
}
if a.Step != b.Step {
return False, nil
}

return True, nil
}

func (a *Range) M__ne__(other Object) (Object, error) {
b, ok := other.(*Range)
if !ok {
return NotImplemented, nil
}

if a.Length != b.Length {
return True, nil
}

if a.Length == 0 {
return False, nil
}
if a.Start != b.Start {
return True, nil
}

if a.Step == 1 {
return False, nil
}
if a.Step != b.Step {
return True, nil
}

return False, nil
}