# mode: run
# tag: pep489, memoryview

cimport cython

include "../buffers/mockbuffers.pxi"


def get_int_2d(mslice: cython.int[:, :], i: cython.int, j: cython.int) -> cython.int:
    """
    >>> C = IntMockBuffer("C", range(6), (2,3))
    >>> get_int_2d(C, 1, 1)
    acquired C
    released C
    4

    Check negative indexing:
    >>> get_int_2d(C, -1, 0)
    acquired C
    released C
    3
    >>> get_int_2d(C, -1, -2)
    acquired C
    released C
    4
    >>> get_int_2d(C, -2, -3)
    acquired C
    released C
    0

    Out-of-bounds errors:
    >>> get_int_2d(C, 2, 0)
    Traceback (most recent call last):
        ...
    IndexError: Out of bounds on buffer access (axis 0)
    >>> get_int_2d(C, 0, -4)
    Traceback (most recent call last):
        ...
    IndexError: Out of bounds on buffer access (axis 1)
    """
    buf = mslice
    return buf[i, j]


def set_int_2d(mslice: cython.int[:, :], i: cython.int, j: cython.int, value: cython.int) -> cython.int:
    """
    Uses get_int_2d to read back the value afterwards. For pure
    unit test, one should support reading in MockBuffer instead.

    >>> C = IntMockBuffer("C", range(6), (2,3))
    >>> set_int_2d(C, 1, 1, 10)
    acquired C
    released C
    >>> get_int_2d(C, 1, 1)
    acquired C
    released C
    10

    Check negative indexing:
    >>> set_int_2d(C, -1, 0, 3)
    acquired C
    released C
    >>> get_int_2d(C, -1, 0)
    acquired C
    released C
    3

    >>> set_int_2d(C, -1, -2, 8)
    acquired C
    released C
    >>> get_int_2d(C, -1, -2)
    acquired C
    released C
    8

    >>> set_int_2d(C, -2, -3, 9)
    acquired C
    released C
    >>> get_int_2d(C, -2, -3)
    acquired C
    released C
    9

    Out-of-bounds errors:
    >>> set_int_2d(C, 2, 0, 19)
    Traceback (most recent call last):
        ...
    IndexError: Out of bounds on buffer access (axis 0)
    >>> set_int_2d(C, 0, -4, 19)
    Traceback (most recent call last):
        ...
    IndexError: Out of bounds on buffer access (axis 1)

    """
    buf = mslice
    buf[i, j] = value