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424187e482
Lex a backtick-enclosed `[:identifier_start:][:identifier_cont:]+` as an identifier, even if it's a Swift keyword. For now, require that the escaped name still be a valid identifier, keyword collisions notwithstanding. (We could in theory allow an arbitrary string, but we'd have to invent a mangling for non-identifier characters and do other tooling which doesn't seem productive.) Swift SVN r14671
24 lines
656 B
Swift
24 lines
656 B
Swift
// RUN: %swift -parse -verify %s
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func `protocol`() {}
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`protocol`()
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class `Type` {}
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var `class` = `Type`.self
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`class = `Type`.self // expected-error{{escaped identifier does not have a closing '`'}}
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`class` = `Type // expected-error{{escaped identifier does not have a closing '`'}}
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.type
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let `0` = 0 // expected-error{{escaped identifier does not begin with a valid identifier start character}} expected-error{{expected pattern}}
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let `foo-bar` = 0 // expected-error{{escaped identifier contains invalid identifier character}} expected-error{{expected pattern}}
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func foo() {}
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`foo`()
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``() // expected-error{{escaped identifier cannot be empty}}
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