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|
//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2023 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
// This test file has been translated from swift/test/Parse/self_rebinding.swift
import XCTest
final class SelfRebindingTests: ParserTestCase {
func testSelfRebinding1() {
assertParse(
#"""
class Writer {
private var articleWritten = 47
func stop() {
let rest: () -> Void = { [weak self] in
let articleWritten = self?.articleWritten ?? 0
guard let `self` = self else {
return
}
self.articleWritten = articleWritten
}
fatalError("I'm running out of time")
rest()
}
func nonStop() {
let write: () -> Void = { [weak self] in
self?.articleWritten += 1
if let self = self {
self.articleWritten += 1
}
if let `self` = self {
self.articleWritten += 1
}
guard let self = self else {
return
}
self.articleWritten += 1
}
write()
}
}
"""#
)
}
func testSelfRebinding2() {
assertParse(
"""
struct T {
var mutable: Int = 0
func f() {
let 1️⃣self = self
}
}
""",
diagnostics: [
DiagnosticSpec(
message: "keyword 'self' cannot be used as an identifier here",
fixIts: ["if this name is unavoidable, use backticks to escape it"]
)
],
fixedSource: """
struct T {
var mutable: Int = 0
func f() {
let `self` = self
}
}
"""
)
}
func testSelfRebinding3() {
assertParse(
"""
class MyCls {
func something() {}
func test() {
let `self` = Writer() // Even if `self` is shadowed,
something() // this should still refer `MyCls.something`.
}
}
"""
)
}
func testSelfRebinding4() {
assertParse(
"""
// https://github.com/apple/swift/issues/47136
// Method called 'self' can be confused with regular 'self'
"""
)
}
func testSelfRebinding5() {
assertParse(
"""
func funcThatReturnsSomething(_ any: Any) -> Any {
any
}
"""
)
}
func testSelfRebinding6() {
assertParse(
"""
struct TypeWithSelfMethod {
let property = self
// Existing warning expected, not confusable
let property2 = self()
let propertyFromClosure: () = {
print(self)
}()
let propertyFromFunc = funcThatReturnsSomething(self)
let propertyFromFunc2 = funcThatReturnsSomething(TypeWithSelfMethod.self) // OK
func `self`() {
}
}
"""
)
}
func testSelfRebinding7() {
assertParse(
"""
/// Test fix_unqualified_access_member_named_self doesn't appear for computed var called `self`
/// it can't currently be referenced as a static member -- unlike a method with the same name
struct TypeWithSelfComputedVar {
let property = self
let propertyFromClosure: () = {
print(self)
}()
let propertyFromFunc = funcThatReturnsSomething(self)
var `self`: () {
()
}
}
"""
)
}
func testSelfRebinding8() {
assertParse(
"""
/// Test fix_unqualified_access_member_named_self doesn't appear for property called `self`
/// it can't currently be referenced as a static member -- unlike a method with the same name
struct TypeWithSelfProperty {
let property = self
let propertyFromClosure: () = {
print(self)
}()
let propertyFromFunc = funcThatReturnsSomething(self)
let `self`: () = ()
}
"""
)
}
func testSelfRebinding9() {
assertParse(
"""
enum EnumCaseNamedSelf {
case `self`
init() {
self = .self // OK
self = .`self` // OK
self = EnumCaseNamedSelf.`self` // OK
}
}
"""
)
}
func testSelfRebinding10() {
assertParse(
"""
// rdar://90624344 - warning about `self` which cannot be fixed because it's located in implicitly generated code.
struct TestImplicitSelfUse : Codable {
let `self`: Int // Ok
}
"""
)
}
}
|
