20 lines
566 B
Rust
20 lines
566 B
Rust
// rustfmt-max_width: 80
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fn foo() {
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// This is where it gets good
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refmut_map_result(self.cache.borrow_mut(), |cache| {
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match cache.entry(cache_key) {
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Occupied(entry) => Ok(entry.into_mut()),
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Vacant(entry) => {
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let statement = {
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let sql = try!(entry.key().sql(source));
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prepare_fn(&sql)
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};
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Ok(entry.insert(try!(statement)))
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}
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// and now, casually call a method on this
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}
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}).map(MaybeCached::Cached)
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}
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