swiftlang/swift
GitHub で見る[SR-5984] Error message for accidentally calling function in #selector(foo()) could suggest removing parens
Open
#48,543 opened on 2017年9月26日
bugcompilerdiagnostics qualitygood first issuetype checker
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説明
| Previous ID | SR-5984 |
| Radar | rdar://problem/34640740 |
| Original Reporter | @huonw |
| Type | Bug |
| Status | In Progress |
| Resolution |
Swift 4.0
| Votes | 0 |
| Component/s | Compiler |
| Labels | Bug, DiagnosticsQoI, StarterBug, TypeChecker |
| Assignee | None |
| Priority | Medium |
md5: 939952c8851f309540d6ce3aaa7d7c15
Issue Description:
import Foundation
class Foo {
@objc func foo() {
_ = #selector(foo())
}
}
call-selector.swift:5:13: error: argument of '#selector' does not refer to an '@objc' method, property, or initializer
_ = #selector(foo())
^ ~~~~~
This is close to the correct syntax (#selector(foo)) and the compiler could help guide the user to this. This probably comes up most often with selectors for methods with no arguments (https://bugs.swift.org/browse/SR-1016).