Can we remove enclosing braces from a single-statement block?

[getify]

I'm thinking, unless I'm missing something with the grammar or possibly with let block-scoping, that we can detect if a statement block delimited by { .. } (such as, specifically, the consequent clause of an if-statement) only has a single statement in it, and if so, it should be safe to remove the enclosing { } and instead just make sure it ends in a ;. Am I missing something?

if (foo) { return foo; }

currently minifies to:

if(foo){return foo}

but should be safe to instead go to:

if(foo)return foo;

which is one character less.

By contrast:

if (foo) return foo;

already safely minifies to:

if(foo)return foo;

Am I missing something that would make this unsafe or impossible?

[mishoo]

Am I missing something?

Perhaps you're missing the -c (--compress) flag? Also, try -m too. Without these flags you only get whitespace removal.

[getify]

Thanks, I was missing that. Sorry. Saves me about 350 pre-gzip bytes, but only about 15 post-gzip bytes. :)