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Closures grammar #135

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Dec 1, 2017
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Closures grammar #135

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11 changes: 11 additions & 0 deletions src/expressions/closure-expr.md
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Original file line number Diff line number Diff line change
@@ -1,5 +1,11 @@
# Closure expressions

> **<sup>Syntax</sup>**
> _ClosureExpression_ :
> &nbsp;&nbsp; `move`<sup>?</sup>
> &nbsp;&nbsp; ( `||` | `|` [_FunctionParameters_]<sup>?</sup> `|` )
> &nbsp;&nbsp; ([_Expression_] | `->` [_TypeNoBounds_]&nbsp;[_BlockExpression_])
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Is TypeNoBounds actually defined anywhere?

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There is a draft: https://brauliobz.github.io/rust-reference/types.html#types .


A _closure expression_ defines a closure and denotes it as a value, in a single
expression. A closure expression is a pipe-symbol-delimited (`|`) list of
patterns followed by an expression. Type annotations may optionally be added
Expand Down Expand Up @@ -56,3 +62,8 @@ ten_times(move |j| println!("{}, {}", word, j));

[block]: expressions/block-expr.html
[function definitions]: items/functions.html

[_Expression_]: expressions.html
[_BlockExpression_]: expressions/block-expr.html
[_TypeNoBounds_]: types.html
[_FunctionParameters_]: items/functions.html