code-translation

Code Translation

Convert code between programming languages while preserving functionality, adapting to target language idioms and best practices.

Translation Workflow

1. Analyze Source Code

Understand what the code does:

• Core functionality and algorithms
• Dependencies and external libraries
• Language-specific features used
• Performance characteristics

2. Choose Translation Strategy

Direct Translation: Literal conversion maintaining structure

• Use for: Simple algorithms, data transformations, utility functions
• Pros: Faster, easier to verify correctness
• Cons: May not be idiomatic in target language

Idiomatic Translation: Adapt to target language patterns

• Use for: Production code, public APIs, long-term maintenance
• Pros: Native-feeling code, better performance, maintainable
• Cons: Takes longer, requires deep language knowledge

Recommended: Start with direct translation, then refine to idiomatic.

3. Translate Code

Perform the translation following language patterns and conventions.

4. Verify Correctness

Ensure translated code behaves identically to source:

• Port existing tests
• Add behavioral tests
• Compare outputs on same inputs

Quick Translation Examples

Python → JavaScript

Source (Python)

def calculate_total(items):
    """Calculate total price with tax."""
    subtotal = sum(item['price'] * item['quantity'] for item in items)
    tax = subtotal * 0.08
    return subtotal + tax

# Usage
items = [
    {'name': 'Widget', 'price': 10.0, 'quantity': 2},
    {'name': 'Gadget', 'price': 15.0, 'quantity': 1}
]
total = calculate_total(items)

Target (JavaScript)

function calculateTotal(items) {
    // Calculate total price with tax
    const subtotal = items.reduce(
        (sum, item) => sum + item.price * item.quantity,
        0
    );
    const tax = subtotal * 0.08;
    return subtotal + tax;
}

// Usage
const items = [
    { name: 'Widget', price: 10.0, quantity: 2 },
    { name: 'Gadget', price: 15.0, quantity: 1 }
];
const total = calculateTotal(items);