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b119407966
In Swift 6 and later, whitespace is no longer permitted between an
attribute name and the opening parenthesis. Update the parser so that
in Swift 6+, a `(` without preceding whitespace is always treated as
the start of the argument list, while a '(' with preceding whitespace is
considered the start of the argument list _only when_ it is unambiguous.
This change makes the following closure be parsed correctly:
{ @MainActor (arg: Int) in ... }
rdar://147785544
11 lines
254 B
Swift
11 lines
254 B
Swift
// RUN: %target-swift-frontend -parse -verify %s
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func test1() {
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@s
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return // expected-error {{expected declaration}}
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}
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func test2() {
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@unknown // expected-error {{unknown attribute 'unknown'}}
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return // expected-error {{expected declaration}}
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}
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