error-handling.smash

// SmashLang Error Handling Examples

// Basic try-catch
try {
    // Code that might throw an error
    let x = JSON.parse('{"invalid": json}');
} catch (error) {
    print("Caught an error: " + error);
}

// Try-catch-finally
try {
    // Code that might throw an error
    throw "Something went wrong!";
} catch (error) {
    print("Caught an error: " + error);
} finally {
    print("This will always execute");
}

// Nested try-catch blocks
try {
    print("Outer try block");
    try {
        print("Inner try block");
        throw "Inner error";
    } catch (innerError) {
        print("Caught inner error: " + innerError);
        throw "Rethrown error";
    }
} catch (outerError) {
    print("Caught outer error: " + outerError);
}

// Custom error handling function
fn handleError(fn) {
    try {
        return fn();
    } catch (error) {
        print("Error handled: " + error);
        return null;
    }
}

// Using the custom error handler
let result = handleError(fn() {
    throw "Custom error";
});
print("Result: " + result);

// Conditional error handling
fn divide(a, b) {
    if (b === 0) {
        throw "Division by zero";
    }
    return a / b;
}

try {
    let result1 = divide(10, 2);
    print("10 / 2 = " + result1);
    
    let result2 = divide(10, 0);
    print("This line won't execute");
} catch (error) {
    print("Caught division error: " + error);
}

// Error objects
try {
    throw {
        name: "CustomError",
        message: "This is a custom error object",
        code: 123
    };
} catch (error) {
    print("Error name: " + error.name);
    print("Error message: " + error.message);
    print("Error code: " + error.code);
}