<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Yes, and it does, and this is not the issue. The problem is that when we generate the initializer for a private type it is invisible to those outside its scope (which is, by definition, everybody else). X cannot be initialized and cannot declare any initializer that can possibly be visible because you cannot declare members with a higher access level than their containing declaration.<br><br>~Robert Widmann</div><div><br>2016/06/15 11:46、Adrian Zubarev via swift-evolution <<a href="mailto:swift-evolution@swift.org">swift-evolution@swift.org</a>> のメッセージ:<br><br></div><blockquote type="cite"><div><style>
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.error { color:#AA0000; }</style><div class="bloop_markdown"><p>Shouldn’t it act theoretically something like this:</p>
<pre><code class="swift">// Begin file A (which acts like a scope)
// where `type` can be enum, struct, class or protocol
private type X {}
fileprivate type Y {}
public struct Z {
var x: X
var y: Y
}
// End file A
</code></pre>
<p><code>private</code> should always behave the same as <code>fileprivate</code> on the same scope level of declaration, where <code>fileprivate</code> is accessible from anywhere within the same file no matter in which level it was declared.</p>
<pre><code class="swift">// Begin file A (which acts like a scope)
public struct Z {
fileprivate var a = 0
private var b = "z"
}
public struct X {
static func foo() {
var z = Z()
z.a // a is visible here
z.b // raises an error because b is not visible from that scope
}
}
// End file A
</code></pre>
<p>That how I imagine this to work.</p>
<p></p></div><div class="bloop_original_html"><style>body{font-family:Helvetica,Arial;font-size:13px}</style><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;"><br></div> <br> <div id="bloop_sign_1466015757495724032" class="bloop_sign"><div style="font-family:helvetica,arial;font-size:13px">-- <br>Adrian Zubarev<br>Sent with Airmail</div></div> <br><p class="airmail_on">Am 15. Juni 2016 um 20:32:09, Robert Widmann via swift-evolution (<a href="mailto:swift-evolution@swift.org">swift-evolution@swift.org</a>) schrieb:</p> <blockquote type="cite" class="clean_bq"><span><div><div></div><div>While implementing SE-0025 (fileprivate), I noticed an interesting bug in the proposal. Under the implementation outlined there, any top-level structure, class, or enum declared private cannot possibly be instantiated and so cannot be used in any way. Because of this, private top-level declarations are more often than not blown away entirely by the compiler for being unused. It seems strange to me to allow a key language feature to act solely as a hint to the optimizer to reduce the size of your binary. Perhaps the restrictions around private needs to be relaxed or the line between fileprivate and private needs to be investigated again by the community before inclusion in the language.<br><br>Thoughts?<br><br>~Robert Widmann<br>_______________________________________________<br>swift-evolution mailing list<br><a href="mailto:swift-evolution@swift.org">swift-evolution@swift.org</a><br><a href="https://lists.swift.org/mailman/listinfo/swift-evolution">https://lists.swift.org/mailman/listinfo/swift-evolution</a><br></div></div></span></blockquote></div><div class="bloop_markdown"><p></p></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>swift-evolution mailing list</span><br><span><a href="mailto:swift-evolution@swift.org">swift-evolution@swift.org</a></span><br><span><a href="https://lists.swift.org/mailman/listinfo/swift-evolution">https://lists.swift.org/mailman/listinfo/swift-evolution</a></span><br></div></blockquote></body></html>