</pre>

<p>
An <i>assignment operation</i> <code>x</code> <i>op</i><code>=</code>
<code>y</code> where <i>op</i> is a binary <a href="#Arithmetic_operators">arithmetic operator</a>
is equivalent to <code>x</code> <code>=</code> <code>x</code> <i>op</i>
<code>(y)</code> but evaluates <code>x</code>
only once.  The <i>op</i><code>=</code> construct is a single token.

pkg io/fs, type GlobFS interface, Open(string) (File, error)
pkg io/fs, type PathError struct
pkg io/fs, type PathError struct, Err error
pkg io/fs, type PathError struct, Op string
pkg io/fs, type PathError struct, Path string
pkg io/fs, type ReadDirFS interface { Open, ReadDir }
pkg io/fs, type ReadDirFS interface, Open(string) (File, error)