averello/swift-mirror
1
0
Fork 0
mirror of https://github.com/apple/swift.git synced 2025-12-14 20:36:38 +01:00
Code Issues Packages Projects Releases Wiki Activity

Add test cases for the 'nil coalescing operator'.

Browse Source
This commit is contained in:
Crazy凡
2023-06-02 21:02:07 +08:00
parent 3480bf68f9
commit 4e346c1cf8
2 changed files with 24 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
test/Constraints/diagnostics.swift
View File

@@ -1557,3 +1557,26 @@ do {
result.append(value) // expected-error {{argument type 'NonHashable' does not conform to expected type 'Hashable'}}
}
}
// https://github.com/apple/swift/issues/66206
func testNilCoalescingOperatorRemoveFix() {
let _ = "" ?? "" // expected-warning {{left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never used}} {{13-19=}}
let _ = "" ?? "" // expected-warning {{left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never used}} {{13-23=}}
let _ = "" /* This is a comment */ ?? "" // expected-warning {{left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never used}} {{13-43=}}
let _ = "" // This is a comment
?? "" // expected-warning {{left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never used}} {{1567:13-1568:10=}}
let _ = "" // This is a comment
/*
* The blank line below is part of the test case, do not delete it
*/
?? "" // expected-warning {{left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never used}} {{1570:13-1575:10=}}
if ("" ?? // This is a comment // expected-warning {{left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never used}} {{1577:9-1578:9=}}
"").isEmpty {}
if ("" // This is a comment
?? "").isEmpty {} // expected-warning {{left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never used}} {{1580:9-1581:12=}}
}