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Marco S Hyman
Feb 9, 2015, 10:31:55 PM2/9/15
to swift-l...@googlegroups.com
Am I the only one who finds this error message odd?
'Foo?' does not have a member named 'variable'.
in this code:
class Foo {
var variable: Int = 42
}
var foo: Foo? = Foo()
if let bar = foo.variable { // error here -- forgot the ? after foo.
println("foo.variable is \(bar)")
}
foo? does have a valid member named variable if it is not nil
foo.variable is bogus since foo is an optional.
Marc
'Foo?' does not have a member named 'variable'.
in this code:
class Foo {
var variable: Int = 42
}
var foo: Foo? = Foo()
if let bar = foo.variable { // error here -- forgot the ? after foo.
println("foo.variable is \(bar)")
}
foo? does have a valid member named variable if it is not nil
foo.variable is bogus since foo is an optional.
Marc
Jens Alfke
Feb 10, 2015, 2:42:17 AM2/10/15
to Marco S Hyman, swift-l...@googlegroups.com
On Feb 9, 2015, at 7:31 PM, Marco S Hyman <ma...@snafu.org> wrote:Am I the only one who finds this error message odd?
'Foo?' does not have a member named 'variable'.
It makes sense to me. “Foo?” is not the same as Foo; it’s shorthand for something like Optional<Foo>, which does not have a member named ‘variable’.
I guess the message would be clearer if it said something like “You forgot to unwrap ‘foo’”. I suppose that kind of polish will get added to the compiler over time; right now they still have bigger issues to work on…
—Jens
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