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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
//
//===----------------------------------------------------------------------===//
import MacroExamplesImplementation
import SwiftSyntaxMacros
import SwiftSyntaxMacrosTestSupport
import XCTest
final class DictionaryStorageMacroTests: XCTestCase {
private let macros: [String: Macro.Type] = [
"DictionaryStorage": DictionaryStorageMacro.self,
"DictionaryStorageProperty": DictionaryStoragePropertyMacro.self,
]
func testExpansionConvertsStoredProperties() {
assertMacroExpansion(
"""
@DictionaryStorage
struct Point {
var x: Int = 1
var y: Int = 2
}
""",
expandedSource: """
struct Point {
var x: Int {
get {
_storage["x", default: 1] as! Int
}
set {
_storage["x"] = newValue
}
}
var y: Int {
get {
_storage["y", default: 2] as! Int
}
set {
_storage["y"] = newValue
}
}
var _storage: [String: Any] = [:]
}
""",
macros: macros,
indentationWidth: .spaces(2)
)
}
func testExpansionWithoutInitializersEmitsError() {
assertMacroExpansion(
"""
@DictionaryStorage
class Point {
let x: Int
let y: Int
}
""",
expandedSource: """
class Point {
let x: Int
let y: Int
var _storage: [String: Any] = [:]
}
""",
diagnostics: [
DiagnosticSpec(message: "stored property must have an initializer", line: 3, column: 3),
DiagnosticSpec(message: "stored property must have an initializer", line: 4, column: 3),
],
macros: macros,
indentationWidth: .spaces(2)
)
}
func testExpansionIgnoresComputedProperties() {
assertMacroExpansion(
"""
@DictionaryStorage
struct Test {
var value: Int {
get { return 0 }
set {}
}
}
""",
expandedSource: """
struct Test {
var value: Int {
get { return 0 }
set {}
}
var _storage: [String: Any] = [:]
}
""",
macros: macros,
indentationWidth: .spaces(2)
)
}
}
|
