Search results
Results from the WOW.Com Content Network
In computer programming and software design, code refactoring is the process of restructuring existing source code—changing the factoring—without changing its external behavior. Refactoring is intended to improve the design, structure, and/or implementation of the software (its non-functional attributes), while preserving its functionality.
Structured analysis breaks down a software system from the system context level to system functions and data entities as described by Tom DeMarco. [1] Object-oriented decomposition breaks a large system down into progressively smaller classes or objects that are responsible for part of the problem domain.
Excessively short identifiers: the name of a variable should reflect its function unless the function is obvious. Excessive return of data: a function or method that returns more than what each of its callers needs. Excessive comments: a class, function or method has irrelevant or trivial comments. A comment on an attribute setter/getter is a ...
A built-in function, or builtin function, or intrinsic function, is a function for which the compiler generates code at compile time or provides in a way other than for other functions. [23] A built-in function does not need to be defined like other functions since it is built in to the programming language. [24]
The same function, represented using the alternative formulation where each exit point is connected back to the entry point. This graph has 10 edges, eight nodes and one connected component, which also results in a cyclomatic complexity of 3 using the alternative formulation (10 − 8 + 1 = 3).
The factory method design pattern solves problems such as: How can an object's subclasses redefine its subsequent and distinct implementation? The pattern involves creation of a factory method within the superclass that defers the object's creation to a subclass's factory method.
Rule of three ("Three strikes and you refactor") is a code refactoring rule of thumb to decide when similar pieces of code should be refactored to avoid duplication. It states that two instances of similar code do not require refactoring, but when similar code is used three times, it should be extracted into a new procedure.
The return value from a function is provided within the function by making an assignment to an identifier with the same name as the function. [5] However, some versions of Pascal provide a special function Exit(exp); that can be used to return a value immediately from a function, or, without parameters, to return immediately from a procedure. [6]