Multi-assignment

[velipso]

I think, with the new precedence rules that put equals at the very bottom, we can now implement multiple lvalue assignment, like:

var x, y
x, y = 1, 2
x, y = y, x
# etc

[velipso]

This is not just a syntactic freebie... it changes semantics:

var x
x = 1, 2, 3
say x # 1 or 3?

[velipso]

Rejecting this idea.

The amount of combinations that need to be dealt with are too much. If designing a model is that complicated, then explaining the rules to a user is near impossible. We have enough complication with slicing, splicing, chained assignment, conditional assignment, mutation, and chained mutation.

[velipso]

Also (duh), just realized... I already have a form of multi-assignment. How could I have forgotten?!

{x, y} = {y, x}