How do you call the process of taking a part of a function and making an individual function of it?

Question

I know there was a technical term for this. I'm just can't remember what it was.

If the title needs clarification, here is what I mean; If this is the old code:

Result foobar(Param1,Param2,Param3) {
  code that does abc
  code that does xyz
  code that does asdf
  more code that does something
}

and it's changed into:

SomeResult do_xyz(SomeParams) {
  code that does xyz
}
Result foobar() {
  code that does abc
  do_xyz(args);
  code that does asdf
  more code that does something
}

score 21 · Accepted Answer · edited Jul 02 '12 at 20:03

Technical term for this is Extract Method

See http://www.refactoring.com/catalog/extractMethod.html

Turn the fragment into a method whose name explains the purpose of the method.

void printOwing() {
    printBanner();

    //print details
    System.out.println ("name:    " + _name);
    System.out.println ("amount    " + getOutstanding());
}

void printOwing() {
    printBanner();
    printDetails(getOutstanding());
}

void printDetails (double outstanding) {
    System.out.println ("name:    " + _name);
    System.out.println ("amount    " + outstanding);
}

Yusubov · Answer 2 · 2012-07-02T20:25:55.657

8

The process itself is called Refactoring the code, and method is called Extract Method , and it is a good match for applying SRP (single responsibility principle) to the code.

edited Jul 02 '12 at 20:25

answered Jul 02 '12 at 20:01

Yusubov

21,498

How do you call the process of taking a part of a function and making an individual function of it?

2 Answers2

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