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d04cc58c6c
Loosen restrictions on where #available() can appear in IfStmt guards and refine the
context for guard StmtConditionElements following an availability check.
This enables #available() to be combined with if let optional binding:
if #available(iOS 8.0, *),
let x = someIOS8API() {
// Do more iOS 8 stuff
}
and
if let x = someIOS7API() where #available(iOS 8.0, *),
let y = someIOS8API() {
// Do more iOS 8 stuff
}
Swift SVN r28096
76 lines
3.0 KiB
Swift
76 lines
3.0 KiB
Swift
// RUN: %target-parse-verify-swift
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// REQUIRES: OS=macosx
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if #available(OSX 10.10, *) {
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}
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// Allow parenthesized check
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if (#available(OSX 10.10, *)) {
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}
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if #available { // expected-error {{expected availability condition}} expected-error {{braced block of statements is an unused closure}} expected-error {{statement cannot begin with a closure expression}} expected-note {{explicitly discard the result of the closure by assigning to '_'}} expected-error {{type of expression is ambiguous without more context}}
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}
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if #available( { // expected-error {{expected platform name}} expected-error {{expected ')'}} expected-note {{to match this opening '('}}
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}
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if #available() { // expected-error {{expected platform name}}
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}
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if #available(OSX { // expected-error {{expected version number}} expected-error {{expected ')'}} expected-note {{to match this opening '('}}
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}
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if #available(OSX) { // expected-error {{expected version number}}
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}
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if #available(OSX 10.10 { // expected-error {{expected ')'}} expected-note {{to match this opening '('}} expected-error {{check must handle potential future platforms with '*'}}
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}
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if #available(iDishwasherOS 10.10) { // expected-error {{unrecognized platform name 'iDishwasherOS'}}
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}
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if #available(iDishwasherOS 10.10, *) { // expected-error {{unrecognized platform name 'iDishwasherOS'}}
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}
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if #available(iOS 8.0, *) {
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}
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// Want to make sure we can parse this. Perhaps we should not let this validate, though.
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if #available(*) {
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}
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if #available(* { // expected-error {{expected ')' in availability query}} expected-note {{to match this opening '('}}
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}
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// Multiple platforms
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if #available(OSX 10.10, iOS 8.0, *) {
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}
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if #available(OSX 10.10, iOS 8.0) { // expected-error {{check must handle potential future platforms with '*'}}
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}
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if #available(OSX 10.10, { // expected-error {{expected platform name}} // expected-error {{expected ')'}} expected-note {{to match this opening '('}} expected-error {{check must handle potential future platforms with '*'}}
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}
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if #available(OSX 10.10,) { // expected-error {{expected platform name}} expected-error {{check must handle potential future platforms with '*'}}
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}
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if #available(OSX 10.10, iOS { // expected-error {{expected version number}} // expected-error {{expected ')'}} expected-note {{to match this opening '('}} expected-error {{check must handle potential future platforms with '*'}}
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}
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if #available(OSX 10.10, iOS 8.0, iDishwasherOS 10.10) { // expected-error {{unrecognized platform name 'iDishwasherOS'}} expected-error {{check must handle potential future platforms with '*'}}
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}
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if #available(iDishwasherOS 10.10, OSX 10.10) { // expected-error {{unrecognized platform name 'iDishwasherOS'}} expected-error {{check must handle potential future platforms with '*'}}
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}
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if #available(OSX 10.10 || iOS 8.0) { // expected-error {{'||' cannot be used in an availability condition}} expected-error {{check must handle potential future platforms with '*'}}
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}
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// Emit Fix-It removing un-needed >=, for the moment.
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if #available(OSX >= 10.10, *) { // expected-error {{version comparison not needed}} {{19-21=}}
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}
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