The same value is assigned to the variable again

• ASSIGN_SAME_VALUE
• Code Quality
• Low
• No tags

This rule applies when a variable is assigned with the same value as the following:

1. Assignment made to same variable
2. Redundant assignment
3. Swapping the assignment with LHS and RHS variables

The above assignments can be unnecessary code, but they can be assigned with a wrong variable which is not likely to be a programmer's intent.

Noncompliant Code Example

function example1() {
    a = a; // ASSIGN_SAME_VALUE alarm
}

function example2() {
    a = b;
    a = b; // ASSIGN_SAME_VALUE alarm
}

function example3() {
    r = a;
    a = b;
    b = a; // ASSIGN_SAME_VALUE alarm because b already has the same value as a.
}

Compliant Code Example

function example1() {
    a = b;
}

function example2() {
    a = b;
}

function example3() {
    r = a;
    a = b;
    b = r; // a and b are correctly swapped.
}

Version

This rule was introduced in DeepScan 1.0.0-alpha.