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import abc
import dataclassabc
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins import PolyMatrixMixin
class RepMatExprMixin(ExpressionBaseMixin):
@property
@abc.abstractclassmethod
def underlying(self) -> ExpressionBaseMixin:
...
@property
@abc.abstractclassmethod
def repetition(self) -> tuple[int, int]:
...
# overwrites the abstract method of `ExpressionBaseMixin`
def apply(
self,
state: ExpressionStateMixin,
) -> tuple[ExpressionStateMixin, PolyMatrixMixin]:
state, underlying = self.underlying.apply(state)
@dataclassabc.dataclassabc(frozen=True)
class RepMatPolyMatrix(PolyMatrixMixin):
underlying: PolyMatrixMixin
shape: tuple[int, int]
def get_poly(self, row: int, col: int) -> dict[tuple[int, ...], float]:
n_row, n_col = underlying.shape
rel_row = row % n_row
rel_col = col % n_col
return self.underlying.get_poly(rel_row, rel_col)
return state, RepMatPolyMatrix(
underlying=underlying,
shape=tuple(s*r for s, r in zip(underlying.shape, self.repetition)),
)
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