codon/stdlib/internal/sort.codon

50 lines
1.4 KiB
Python

from algorithms.pdqsort import pdq_sort_inplace
from algorithms.insertionsort import insertion_sort_inplace
from algorithms.heapsort import heap_sort_inplace
from algorithms.qsort import qsort_inplace
def sorted(
v: Generator[T],
key = Optional[int](),
algorithm: Optional[str] = None,
reverse: bool = False,
T: type
):
"""
Return a sorted list of the elements in v
"""
newlist = [a for a in v]
if not isinstance(key, Optional):
newlist.sort(key, algorithm, reverse)
else:
newlist.sort(algorithm=algorithm, reverse=reverse)
return newlist
def _sort_list(self, key, algorithm: str):
if algorithm == 'pdq':
pdq_sort_inplace(self, key)
elif algorithm == 'insertion':
insertion_sort_inplace(self, key)
elif algorithm == 'heap':
heap_sort_inplace(self, key)
elif algorithm == 'quick':
qsort_inplace(self, key)
else:
raise ValueError("Algorithm '" + algorithm + "' does not exist")
@extend
class List:
def sort(
self,
key = Optional[int](),
algorithm: Optional[str] = None,
reverse: bool = False
):
alg = ~algorithm if algorithm else 'pdq'
if isinstance(key, Optional):
_sort_list(self, lambda x: x, alg)
else:
_sort_list(self, key, alg)
if reverse:
self.reverse()