[swift-evolution] URL Literals
charlie at charliemonroe.net
Fri Dec 16 16:01:11 CST 2016
> On Dec 16, 2016, at 10:05 PM, Charles Srstka via swift-evolution <swift-evolution at swift.org> wrote:
>> On Dec 16, 2016, at 2:46 PM, Micah Hainline via swift-evolution <swift-evolution at swift.org> wrote:
>> I would like to be able to create a URL literal that is compile-time
>> checked for correct format. This would help avoid code like this:
>> let url: URL = URL(string: "https://example.com")!
>> The cleanest way I can think of doing that would be to introduce a new
>> macro structure similar to #selector, though I'm open to other ideas.
>> I would think it should take a quoted literal string to avoid
>> problems. That would look like this:
>> let url: URL = #url("https://example.com")
>> What does everyone think of that idea?
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>> swift-evolution at swift.org
> I’d like to see something like that for file path URLs. For something so commonly used, URL(fileURLWithPath:) is obnoxiously verbose.
Yes, but it's not a nullable initializer. With URL(string:) the incredible pain is that even compile-time URLs to your own website are nullable URL? and you need to force-unwrap them.
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