c# - verbosity of yield syntax -

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i have interesting question. according msdn yield syntax:

yield return <expression>; // yield value yield break;               // exiting iterator

why not just:

yield <expression>;        // yield value return;                    // exiting iterator

to me second form less verbose , still have same meaning first. question - why first form chosen .net designers ? reasons may caused ? potential design problems second form has ?

here's 1 possibility: create technical ambiguity (remember yield contextual keyword, not reserved keyword)... unlikely, but:

struct yield {}

then

yield x;

is variable declaration. "yield return x;", valid 1 way.

no idea if true. thought.


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