mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
793b3326af
The rule changes are as follows: * All functions (introduced with the 'func' keyword) have argument labels for arguments beyond the first, by default. Methods are no longer special in this regard. * The presence of a default argument no longer implies an argument label. The actual changes to the parser and printer are fairly simple; the rest of the noise is updating the standard library, overlays, tests, etc. With the standard library, this change is intended to be API neutral: I've added/removed #'s and _'s as appropriate to keep the user interface the same. If we want to separately consider using argument labels for more free functions now that the defaults in the language have shifted, we can tackle that separately. Fixes rdar://problem/17218256. Swift SVN r27704
50 lines
1.8 KiB
Swift
50 lines
1.8 KiB
Swift
// RUN: rm -rf %t
|
|
// RUN: mkdir -p %t
|
|
// RUN: %target-swift-frontend -emit-module -o %t %S/Inputs/overload_intFunctions.swift
|
|
// RUN: %target-swift-frontend -emit-module -o %t %S/Inputs/overload_boolFunctions.swift
|
|
// RUN: %target-swift-frontend -emit-module -o %t %S/Inputs/overload_vars.swift
|
|
// RUN: %target-swift-frontend -parse %s -I %t -sdk "" -verify
|
|
|
|
import overload_intFunctions
|
|
import overload_boolFunctions
|
|
import overload_vars
|
|
import var overload_vars.scopedVar
|
|
import func overload_boolFunctions.scopedFunction
|
|
|
|
struct LocalType {}
|
|
func something(obj: LocalType) -> LocalType { return obj }
|
|
func something(a: Int, _ b: Int, _ c: Int) -> () {}
|
|
|
|
var _ : Bool = something(true)
|
|
var _ : Int = something(1)
|
|
var _ : (Int, Int) = something(1, 2)
|
|
var _ : LocalType = something(LocalType())
|
|
var _ : () = something(1, 2, 3)
|
|
something = 42 // expected-error {{could not find an overload for 'something' that accepts the supplied arguments}}
|
|
|
|
let ambValue = ambiguousWithVar // no-warning - var preferred
|
|
let ambValueChecked: Int = ambValue
|
|
ambiguousWithVar = 42 // no-warning
|
|
ambiguousWithVar(true) // no-warning
|
|
|
|
var localVar : Bool
|
|
localVar = false
|
|
localVar = 42 // expected-error {{cannot assign a value of type 'Int' to a value of type 'Bool'}}
|
|
localVar(42) // expected-error {{cannot invoke 'localVar' with an argument list of type '(Int)'}}
|
|
var _ : localVar // should still work
|
|
|
|
var _ = scopedVar // no-warning
|
|
scopedVar(42) // expected-error {{cannot invoke 'scopedVar' with an argument list of type '(Int)'}}
|
|
|
|
var _ : Bool = scopedFunction(true)
|
|
var _ : Int = scopedFunction(42)
|
|
scopedFunction = 42 // expected-error {{ambiguous use of 'scopedFunction'}}
|
|
|
|
// FIXME: Should be an error -- a type name and a function cannot overload.
|
|
var _ : Int = TypeNameWins(42)
|
|
|
|
TypeNameWins = 42 // expected-error {{ambiguous use of 'TypeNameWins'}}
|
|
var _ : TypeNameWins // no-warning
|
|
|
|
|