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8d59eb08df
Ban space and tab as the last character of a `/.../` regex literal, unless escaped with a backslash. This matches the banning of space and tab as the first character, and helps avoid breaking source in even more cases.
93 lines
3.6 KiB
Swift
93 lines
3.6 KiB
Swift
// RUN: %target-typecheck-verify-swift -enable-bare-slash-regex -disable-availability-checking -experimental-skip-all-function-bodies
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// RUN: %target-typecheck-verify-swift -enable-bare-slash-regex -disable-availability-checking -experimental-skip-non-inlinable-function-bodies-without-types
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// RUN: %target-typecheck-verify-swift -enable-bare-slash-regex -disable-availability-checking -experimental-skip-non-inlinable-function-bodies
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// REQUIRES: swift_in_compiler
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// We don't consider this a regex literal when skipping as it has an initial
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// space.
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func a() { _ = / x*/ } // expected-error {{unexpected end of block comment}}
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// Same because of unbalanced ')'
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func b() { _ = /x)*/ } // expected-error {{unexpected end of block comment}}
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// These also fail the heuristic, but have unbalanced `{` `}`, so we don't skip.
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func c() { _ = / x}*/ } // expected-error {{regex literal may not start with space; add backslash to escape}}
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func d() { _ = / x{*/ } // expected-error {{regex literal may not start with space; add backslash to escape}}
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// Unterminated, and unbalanced `{}`.
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func e() {
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_ = / }
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// expected-error@-1 {{unterminated regex literal}}
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// expected-error@-2 {{regex literal may not start with space; add backslash to escape}}
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}
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func f() {
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_ = / {
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// expected-error@-1 {{unterminated regex literal}}
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// expected-error@-2 {{regex literal may not start with space; add backslash to escape}}
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}
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func g() {
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_ = /x }
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} // expected-error {{extraneous '}' at top level}}
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func h() {
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_ = /x {
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} // The above cannot a regex literal so we skip; this `}` is to balance things out.
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}
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func i() {
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_ = /x "[abc] {
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// expected-error@-1 {{unterminated string literal}}
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}
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func j() {
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_ = /^ [abc] {
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// expected-error@-1 {{unterminated regex literal}}
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}
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func k() {
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_ = /^ "[abc] {
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// expected-error@-1 {{unterminated string literal}}
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}
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func l() {
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_ = /^ } abc {
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// expected-error@-1 {{unterminated regex literal}}
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}
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func m() {
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_ = / "
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// expected-error@-1 {{unterminated string literal}}
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}
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} // expected-error {{extraneous '}' at top level}}
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// Unbalanced `}`, make sure we don't consider the string literal `{`.
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func n() { / "{"}/ } // expected-error {{regex literal may not start with space; add backslash to escape}}
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func o() {
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_ = {
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0
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/x}}} /
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2
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} // expected-error {{extraneous '}' at top level}}
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// expected-error@-3 {{extraneous '}' at top level}}
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// expected-error@-4 {{consecutive statements on a line must be separated by ';'}}
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// expected-error@-5 {{unterminated regex literal}}
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// expected-warning@-6 {{regular expression literal is unused}}
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// expected-warning@-6 {{integer literal is unused}}
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} // expected-error {{extraneous '}' at top level}}
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func p() {
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_ = 2
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/x} /
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.bitWidth
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// expected-error@-2 {{consecutive statements on a line must be separated by ';'}}
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// expected-error@-3 {{unterminated regex literal}}
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// expected-error@-3 {{value of type 'Regex<Substring>' has no member 'bitWidth'}}
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} // expected-error {{extraneous '}' at top level}}
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func err1() { _ = / 0xG}/ }
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// expected-error@-1 {{regex literal may not start with space; add backslash to escape}}
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func err2() { _ = / 0oG}/ }
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// expected-error@-1 {{regex literal may not start with space; add backslash to escape}}
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func err3() { _ = / {"/ }
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// expected-error@-1 {{regex literal may not start with space; add backslash to escape}}
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func err4() { _ = / {'/ }
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// expected-error@-1 {{regex literal may not start with space; add backslash to escape}}
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func err5() { _ = / {<#placeholder#>/ }
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// expected-error@-1 {{regex literal may not start with space; add backslash to escape}}
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