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operator overload

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pca006132 2020-12-23 16:53:01 +08:00 committed by pca006132
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@ -21,6 +21,11 @@ for simplicity reasons:
* method override check modulo variable renaming. * method override check modulo variable renaming.
* more complicated type guard * more complicated type guard
## Running Example
```bash
python main.py example/a.py
```
## Files ## Files
All files named `test_xxx` are used for inspecting the result of algorithms, and All files named `test_xxx` are used for inspecting the result of algorithms, and
can be ignored for now. can be ignored for now.
@ -198,5 +203,31 @@ This would fail. From the first argument, we have `A -> A`, and from the second
argument we need `A -> B`. In general, we may have `A != B`, so there is no argument we need `A -> B`. In general, we may have `A != B`, so there is no
substitution that meets the requirement and the type check failed. substitution that meets the requirement and the type check failed.
## Operator Override ## Operator Overloading
Most operations are actually implemented via operator overloading.
We currently support:
* Normal:
* `__init__`
* Comparison:
* `__lt__`
* `__le__`
* `__gt__`
* `__ge__`
* `__eq__`
* `__ne__`
* Arithmetic:
* `__add__`
* `__sub__`
* `__mul__`
* `__matmul__`
* `__truediv__`
* `__floordiv__`
* `__mod__`
* `__pow__`
* `__lshift__`
* `__rshift__`
* `__and__`
* `__or__`
* `__xor__`
* `__neg__`