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Inline Method |  Drawbacks and Resolving Strategy

Inline method refactoring is a technique used in software development to improve the design and maintainability of code. It involves taking a method call and replacing it with the code from the method itself.

How to Apply the Inline Method Refactoring Technique?

To apply the inline method refactoring technique, follow these steps:

Inline Method

Problem

Use this strategy when the method body is more obvious than the method itself.

Before Refactoring

def calculateTotalPrice(price, quantity):
    return price * quantity

def calculateFinalPrice(price, quantity, taxRate):
    total = calculateTotalPrice(price, quantity)
    finalPrice = total + (total * taxRate)
    return finalPrice

# Example usage
price = 10.0
quantity = 2
taxRate = 0.08
finalPrice = calculateFinalPrice(price, quantity, taxRate)
print(f"Final price: ${finalPrice:.2f}")

Solution

Remove the method itself and replace any calls with the method’s content.-

After Refactoring

# Inlined calculateTotalPrice method
def calculateFinalPrice(price, quantity, taxRate):
    total = price * quantity
    finalPrice = total + (total * taxRate)
    return finalPrice

# Example usage
price = 10.0
quantity = 2
taxRate = 0.08
finalPrice = calculateFinalPrice(price, quantity, taxRate)
print(f"Final price: ${finalPrice:.2f}")

In this example, the calculateTotalPrice method is only called once in the calculateFinalPrice method, so it can be safely inlined to simplify the code. The resulting code is shorter and easier to read, while still producing the same result.

Drawbacks of the Inline Method Refactoring Technique

Inline method refactoring can, in some circumstances, increase the readability and performance of the code, but it can also have consequences if used excessively or improperly. The following list of typical problems with inlining techniques includes solutions as well:

Resolving Strategy

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