Piece of code in Playground that reliably crashes lldb server

Question

imneo OP

Created 1w

Replies 4

Boosts 1

Participants 3

Dare anyone try the following code in any Playground:

 // Define a model that conforms to Codable
struct User: Codable {
    var name: String
    var age: Int
    var email: String?
}
 
// JSON data (as a string for demonstration)
let jsonString = """
{
    "name": "John Doe",
    "age": 30,
    "email": "john@example.com"
}
"""
 
// Convert the JSON string to Data
if let jsonData = jsonString.data(using: .utf8) {
    do {
        // Parse the JSON data into the User model
        let user = try JSONDecoder().decode(User.self, from: jsonData)
        print("Name: \(user.name), Age: \(user.age), Email: \(user.email ?? "N/A")")
    } catch {
        print("Error decoding JSON: \(error)")
    }
}

I tested with Xcode 16.2 and latest 16.3, it reliably crashes the lldb server!

截屏2025-04-01 15.20.07.png

Boost

Answer 1

imneo OP

1w

BTW, it works perfectly in the old Xcode 14.2 version.

0

Answer 2

darkpaw OP

1w

Two things:

Raise a bug, like the error tells you to.
Don't post screenshots of errors as they cannot be searched for when someone else encounters the same issue.

Thanks.

1

Answer 3

DTS Engineer OP

Apple

1w

Oh, and if you do file a bug, please post your bug number, just for the record.

ps For hints and tips about how to file bugs effectively, see Bug Reporting: How and Why?

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

0

Answer 4

imneo OP

1w

Here is the bug ticket.

0

	// Define a model that conforms to Codable
	struct User: Codable {
	var name: String
	var age: Int
	var email: String?
	}

	// JSON data (as a string for demonstration)
	let jsonString = """
	{
	"name": "John Doe",
	"age": 30,
	"email": "john@example.com"
	}
	"""

	// Convert the JSON string to Data
	if let jsonData = jsonString.data(using: .utf8) {
	do {
	// Parse the JSON data into the User model
	let user = try JSONDecoder().decode(User.self, from: jsonData)
	print("Name: \(user.name), Age: \(user.age), Email: \(user.email ?? "N/A")")
	} catch {
	print("Error decoding JSON: \(error)")
	}
	}