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manual: add section for path expressions.

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Graydon Hoare 2012-10-11 13:10:20 -07:00
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doc/rust.md
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@ -1503,6 +1503,11 @@ string, boolean value, or the nil value.
5; // integer type
~~~~~~~~
### Path expressions
A [path](#paths) used as an expression context denotes either a local variable or an item.
Path expressions are [lvalues](#lvalues-rvalues-and-temporaries).
### Tuple expressions
Tuples are written by enclosing two or more comma-separated