On Mon, Aug 24, 2015 at 5:45 PM, Waldemar Horwat <walde...@google.com> wrote:
> Let's not. As I said at the last meeting, making ** bind tighter than unary
> operators would break x**-2. And making it sometimes tighter and sometimes
> looser would be too confusing and lead to other opportunities for precedence
> inversion.
Don't you think having `-x**2` mean the same thing as `x**2` is more
confusing? It seems like it will cause problems for the exact
programmers we are trying to help with this feature.
What you're describing as "sometimes tighter and sometimes looser" I
would call "the same precedence". It's even easier to specify than the
current proposal:
UnaryExpression : PostfixExpression ** UnaryExpression
An expression using both `**` and unary `-` is then parsed right-associatively:
-a ** -b ** -c ** -d
means -(a ** (-(b ** (-(c ** (-d))))))
-j
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