Hi Ethan, On 2015-04-29 2:32 PM, Ethan Furman wrote:
On 04/29, Yury Selivanov wrote:
On 2015-04-29 1:25 PM, Ethan Furman wrote:
cannot also just work and be the same as the parenthesized version. Because it does not make any sense. I obviously don't understand your position that "it does not make any sense" -- perhaps you could explain a bit?
What I see is a suspension point that is waiting for the results of coro(), which will be negated (and returned/assigned/whatever). What part of that doesn't make sense?
Because you want operators to be resolved in the order you see them, generally. You want '(await -fut)' to: 1. Suspend on fut; 2. Get the result; 3. Negate it. This is a non-obvious thing. I would myself interpret it as: 1. Get fut.__neg__(); 2. await on it. So I want to make this syntactically incorrect: 'await -fut' would throw a SyntaxError. To do what you want, write a pythonic '- await fut'. Yury