Open
Description
| Previous ID | SR-8510 |
| Radar | rdar://problem/32419789 |
| Original Reporter | @huonw |
| Type | Bug |
| Status | In Progress |
| Resolution |
Environment
Master at 2018-08-09
Additional Detail from JIRA
| Votes | 1 |
| Component/s | Compiler |
| Labels | Bug, DiagnosticsQoI, Parser, StarterBug |
| Assignee | mkita (JIRA) |
| Priority | Medium |
md5: 83854736e7d37441acce9e16b297a24a
Issue Description:
In the following code, the guard statement is misspelled, and it results in 6 errors, plus notes and warnings! It'd be neat if the compiler detected when the "consecutive statements" error starts with the identifier gaurd, and assumed that guard was what was meant (along with a fixit so the user swaps it). I think that only doing this when that error occurs is important, because someone could legitimately have var gaurd = 1; gaurd = 2; print(gaurd), and none of those should change to guard.
func foo() -> Int? { return 0 }
func bar() {
gaurd let x = foo() else { return }
print(x)
}guard.swift:3:10: error: consecutive statements on a line must be separated by ';'
gaurd let x = foo() else { return }
^
;
guard.swift:3:24: error: consecutive statements on a line must be separated by ';'
gaurd let x = foo() else { return }
^
;
guard.swift:3:25: error: expected expression
gaurd let x = foo() else { return }
^
guard.swift:3:5: error: use of unresolved identifier 'gaurd'
gaurd let x = foo() else { return }
^~~~~
guard.swift:3:30: error: closure expression is unused
gaurd let x = foo() else { return }
^
guard.swift:3:30: note: did you mean to use a 'do' statement?
gaurd let x = foo() else { return }
^
do
guard.swift:4:11: warning: expression implicitly coerced from 'Int?' to 'Any'
print(x)
^
guard.swift:4:11: note: provide a default value to avoid this warning
print(x)
^
?? <#default value#>
guard.swift:4:11: note: force-unwrap the value to avoid this warning
print(x)
^
!
guard.swift:4:11: note: explicitly cast to 'Any' with 'as Any' to silence this warning
print(x)
^
as Any
Possible new version:
guard.swift:3:10: error: consecutive statements on a line must be separated by ';'; did you misspell 'guard'?
gaurd let x = foo() else { return }
^~~~~
guard