// RUN: %target-typecheck-verify-swift // rdar://15946844 func test1(inout var x : Int) {} // expected-warning {{'var' in this position is interpreted as an argument label}} {{18-21=`var`}} // expected-error @-1 {{'inout' before a parameter name is not allowed, place it before the parameter type instead}} {{12-17=}} {{26-26=inout }} func test2(inout let x : Int) {} // expected-warning {{'let' in this position is interpreted as an argument label}} {{18-21=`let`}} // expected-error @-1 {{'inout' before a parameter name is not allowed, place it before the parameter type instead}} {{12-17=}} {{26-26=inout }} func test3(f : (inout _ x : Int) -> Void) {} // expected-error {{'inout' before a parameter name is not allowed, place it before the parameter type instead}} func test1s(__shared var x : Int) {} // expected-warning {{'var' in this position is interpreted as an argument label}} {{22-25=`var`}} // expected-error @-1 {{'__shared' before a parameter name is not allowed, place it before the parameter type instead}} {{13-21=}} {{30-30=__shared }} func test2s(__shared let x : Int) {} // expected-warning {{'let' in this position is interpreted as an argument label}} {{22-25=`let`}} // expected-error @-1 {{'__shared' before a parameter name is not allowed, place it before the parameter type instead}} {{13-21=}} {{30-30=__shared }} func test1o(__owned var x : Int) {} // expected-warning {{'var' in this position is interpreted as an argument label}} {{21-24=`var`}} // expected-error @-1 {{'__owned' before a parameter name is not allowed, place it before the parameter type instead}} {{13-20=}} func test2o(__owned let x : Int) {} // expected-warning {{'let' in this position is interpreted as an argument label}} {{21-24=`let`}} // expected-error @-1 {{'__owned' before a parameter name is not allowed, place it before the parameter type instead}} {{13-20=}} func test3() { undeclared_func( // expected-error {{use of unresolved identifier 'undeclared_func'}} } // expected-error {{expected expression in list of expressions}} func runAction() {} // expected-note {{'runAction' declared here}} // rdar://16601779 func foo() { runAction(SKAction.sequence() // expected-error {{use of unresolved identifier 'SKAction'; did you mean 'runAction'?}} {{13-21=runAction}} expected-error {{expected ',' separator}} {{32-32=,}} skview! // expected-error @-1 {{use of unresolved identifier 'skview'}} } super.init() // expected-error {{'super' cannot be used outside of class members}} switch state { // expected-error {{use of unresolved identifier 'state'}} let duration : Int = 0 // expected-error {{all statements inside a switch must be covered by a 'case' or 'default'}} case 1: break } func testNotCoveredCase(x: Int) { switch x { let y = "foo" // expected-error {{all statements inside a switch must be covered by a 'case' or 'default'}} switch y { case "bar": blah blah // ignored } case "baz": // expected-error {{expression pattern of type 'String' cannot match values of type 'Int'}} break case 1: break default: break } } // rdar://18926814 func test4() { let abc = 123 _ = " >> \( abc } ) << " // expected-error {{expected ',' separator}} {{18-18=,}} expected-error {{expected expression in list of expressions}} } // rdar://problem/18507467 func d(_ b: String -> () -> T) {} // expected-error {{expected type for function result}} // QoI: terrible diagnostic when trying to form a generic protocol protocol Animal { // expected-error {{protocols do not allow generic parameters; use associated types instead}} func feed(_ food: Food) // expected-error {{use of undeclared type 'Food'}} } // SR-573 - Crash with invalid parameter declaration class Starfish {} struct Salmon {} func f573(s Starfish, // expected-error {{parameter requires an explicit type}} _ ss: Salmon) -> [Int] {} func g573() { f573(Starfish(), Salmon()) } func SR698(_ a: Int, b: Int) {} SR698(1, b: 2,) // expected-error {{unexpected ',' separator}} // SR-979 - Two inout crash compiler func SR979a(a : inout inout Int) {} // expected-error {{parameter must not have multiple '__owned', 'inout', or '__shared' specifiers}} {{17-23=}} func SR979b(inout inout b: Int) {} // expected-error {{inout' before a parameter name is not allowed, place it before the parameter type instead}} {{13-18=}} {{28-28=inout }} // expected-error@-1 {{parameter must not have multiple '__owned', 'inout', or '__shared' specifiers}} {{19-25=}} func SR979d(let let a: Int) {} // expected-warning {{'let' in this position is interpreted as an argument label}} {{13-16=`let`}} // expected-error @-1 {{expected ',' separator}} {{20-20=,}} // expected-error @-2 {{parameter requires an explicit type}} // expected-warning @-3 {{extraneous duplicate parameter name; 'let' already has an argument label}} {{13-17=}} func SR979e(inout x: inout String) {} // expected-error {{parameter must not have multiple '__owned', 'inout', or '__shared' specifiers}} {{13-18=}} func SR979g(inout i: inout Int) {} // expected-error {{parameter must not have multiple '__owned', 'inout', or '__shared' specifiers}} {{13-18=}} func repeat() {} // expected-error @-1 {{keyword 'repeat' cannot be used as an identifier here}} // expected-note @-2 {{if this name is unavoidable, use backticks to escape it}} {{6-12=`repeat`}} let for = 2 // expected-error @-1 {{keyword 'for' cannot be used as an identifier here}} // expected-note @-2 {{if this name is unavoidable, use backticks to escape it}} {{5-8=`for`}} func dog cow() {} // expected-error {{found an unexpected second identifier in function declaration; is there an accidental break?}} // expected-note@-1 {{join the identifiers together}} {{6-13=dogcow}} // expected-note@-2 {{join the identifiers together with camel-case}} {{6-13=dogCow}} func cat Mouse() {} // expected-error {{found an unexpected second identifier in function declaration; is there an accidental break?}} // expected-note@-1 {{join the identifiers together}} {{6-15=catMouse}} func friend ship(x: T) {} // expected-error {{found an unexpected second identifier in function declaration; is there an accidental break?}} // expected-note@-1 {{join the identifiers together}} {{6-17=friendship}} // expected-note@-2 {{join the identifiers together with camel-case}} {{6-17=friendShip}} func were wolf() {} // expected-error {{found an unexpected second identifier in function declaration; is there an accidental break?}} // expected-note@-1 {{join the identifiers together}} {{6-5=werewolf}} // expected-note@-2 {{join the identifiers together with camel-case}} {{6-5=wereWolf}} func hammer leavings(x: T) {} // expected-error {{found an unexpected second identifier in function declaration; is there an accidental break?}} // expected-note@-1 {{join the identifiers together}} {{6-9=hammerleavings}} // expected-note@-2 {{join the identifiers together with camel-case}} {{6-9=hammerLeavings}} prefix operator % prefix func %(x: T) -> T { return x } // No error expected - the < is considered an identifier but is peeled off by the parser. struct Weak { // expected-error {{'class' constraint can only appear on protocol declarations}} // expected-note@-1 {{did you mean to write an 'AnyObject' constraint?}} {{16-21=AnyObject}} weak let value: T // expected-error {{'weak' must be a mutable variable, because it may change at runtime}} expected-error {{'weak' variable should have optional type 'T?'}} expected-error {{'weak' must not be applied to non-class-bound 'T'; consider adding a protocol conformance that has a class bound}} } let x: () = () !() // expected-error {{cannot convert value of type '()' to expected argument type 'Bool'}} !(()) // expected-error {{cannot convert value of type '()' to expected argument type 'Bool'}} !(x) // expected-error {{cannot convert value of type '()' to expected argument type 'Bool'}} !x // expected-error {{cannot convert value of type '()' to expected argument type 'Bool'}} func sr8202_foo(@NSApplicationMain x: Int) {} // expected-error {{@NSApplicationMain may only be used on 'class' declarations}} func sr8202_bar(@available(iOS, deprecated: 0) x: Int) {} // expected-error {{'@availability' attribute cannot be applied to this declaration}} func sr8202_baz(@discardableResult x: Int) {} // expected-error {{'@discardableResult' attribute cannot be applied to this declaration}} func sr8202_qux(@objcMembers x: String) {} // expected-error {{@objcMembers may only be used on 'class' declarations}} func sr8202_quux(@weak x: String) {} // expected-error {{'weak' is a declaration modifier, not an attribute}} expected-error {{'weak' may only be used on 'var' declarations}} class sr8202_cls<@NSApplicationMain T: AnyObject> {} // expected-error {{@NSApplicationMain may only be used on 'class' declarations}} func sr8202_func<@discardableResult T>(x: T) {} // expected-error {{'@discardableResult' attribute cannot be applied to this declaration}} enum sr8202_enum<@indirect T> {} // expected-error {{'indirect' is a declaration modifier, not an attribute}} expected-error {{'indirect' modifier cannot be applied to this declaration}} protocol P { @available(swift, introduced: 4.2) associatedtype Assoc // expected-error {{'@availability' attribute cannot be applied to this declaration}} }