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[Diagnostics] s/may/must/ in 'may not fall through'

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This commit is contained in:
Graydon Hoare
2017-09-28 23:30:31 -04:00
parent 3c8c880b8e
commit 324471a2bc
2 changed files with 2 additions and 2 deletions
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2
include/swift/AST/DiagnosticsSIL.def
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@@ -221,7 +221,7 @@ ERROR(missing_never_call,none,
"call to another never-returning function on all paths",
(Type, unsigned))
ERROR(guard_body_must_not_fallthrough,none,
"'guard' body may not fall through, consider using a 'return' or 'throw'"
"'guard' body must not fall through, consider using a 'return' or 'throw'"
" to exit the scope", ())
WARNING(unreachable_code,none, "will never be executed", ())
NOTE(unreachable_code_branch,none,

2
test/SILOptimizer/unreachable_code.swift
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@@ -218,7 +218,7 @@ class r20097963MyClass {
func die() -> Never { die() }
func testGuard(_ a : Int) {
guard case 4 = a else { } // expected-error {{'guard' body may not fall through, consider using a 'return' or 'throw'}}
guard case 4 = a else { } // expected-error {{'guard' body must not fall through, consider using a 'return' or 'throw'}}
guard case 4 = a else { return } // ok
guard case 4 = a else { die() } // ok