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is invalid and produces a ParseError, recovery by producing an AST with an ErrorExpr in it instead of dropping the initializer on the floor. This silences downstream errors about "must have an initializer" sorts of stuff. Swift SVN r26405
69 lines
2.9 KiB
Swift
69 lines
2.9 KiB
Swift
// RUN: %target-parse-verify-swift -parse-stdlib -disable-access-control -enable-character-literals
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import Swift
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typealias CharacterLiteralType = MyCharacter
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struct MyCharacter :
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_BuiltinCharacterLiteralConvertible, CharacterLiteralConvertible,
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Equatable {
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init(_builtinCharacterLiteral value: Builtin.Int32) { }
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init(characterLiteral value: MyCharacter) { }
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}
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func ==(lhs: MyCharacter, rhs: MyCharacter) -> Bool {
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return true
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}
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//===----------------------------------------------------------------------===//
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// Character Literals
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//===----------------------------------------------------------------------===//
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var ch_nul = '\0'
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var ch_1 = '\1' // expected-error {{invalid escape sequence in literal}}
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var ch_at = '\@' // expected-error {{invalid escape sequence in literal}}
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var ch_1_ = '\1 // expected-error {{invalid escape sequence in literal}}
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var ch_01_ = '\01 // expected-error {{unterminated character literal}}
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var ch_01a_ = '\01a // expected-error {{unterminated character literal}}
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var ch_at_ = '\@ // expected-error {{invalid escape sequence in literal}}
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var ch_01 = '\01' // expected-error {{invalid multiple-code-point character literal}}
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var ch_011 = '\011' // expected-error {{invalid multiple-code-point character literal}}
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var ch_0a = '\0a' // expected-error {{invalid multiple-code-point character literal}}
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var ch_01a = '\01a' // expected-error {{invalid multiple-code-point character literal}}
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var ch_0z = '\0z' // expected-error {{invalid multiple-code-point character literal}}
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var ch_01z = '\01z' // expected-error {{invalid multiple-code-point character literal}}
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var ch_0at = '\0@' // expected-error {{invalid multiple-code-point character literal}}
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var ch_01at = '\01@' // expected-error {{invalid multiple-code-point character literal}}
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var ch_US = '🇺🇸' // expected-error {{invalid multiple-code-point character literal}}
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var ch_Joker = '🃏'
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var ch_n = '\n'
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var ch_r = '\r'
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var ch_t = '\t'
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var ch_x = '\u{7f}' // DEL
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var ch_q = '' // expected-error {{unprintable ASCII character found in source file}}
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var ch_u = '\u{014d}' // 'ō'
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var ch_U = '\u{0001D41F}' // '𝐁' a.k.a. "Math alphanumeric B"
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var ch_x_too_big = '\u{80}'
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var ch_U_too_big = '\u{12345678}' // expected-error {{invalid unicode scalar}}
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var ch_x_too_short = '\u{1}'
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// Recovery for invalid character literals.
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func isSpace(c: MyCharacter) -> Bool {
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return (c == ' ' ||
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c == '' || // expected-error {{invalid character literal}}
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c == '\v' || // expected-error {{invalid escape sequence in literal}}
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c == '\f' || // expected-error {{invalid escape sequence in literal}}
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c == '\t')
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}
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func isEnglishSpeaking(c: MyCharacter) -> Bool {
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return c == '🇺🇸' // expected-error {{invalid multiple-code-point character literal}}
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|| c == '🇬🇧' // expected-error {{invalid multiple-code-point character literal}}
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}
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