BUG: Make a @= b error out

Before this change, we defined a nb_matrix_multiply slot but not a
nb_inplace_matrix_multiply slot, which means that a statement like

  a @= b

would be silently expanded by the CPython interpreter to become

  a = a @ b

This is undesireable, because it produces unexpected memory
allocations, breaks view relationships, and so forth.

This commit adds a nb_inplace_matrix_multiply slot which simply errors
out, and suggests that users write 'a = a @ b' explicitly if that's
what they want.

0 files changed, 0 insertions, 0 deletions