EtaLikeSimplifications

Severity: Low | Category: Optimization

Detects opportunities for simplifying code by eliminating redundant boolean expressions and statements.

Why is it bad?

Redundant code can make programs less efficient and harder to read. Simplifying such code improves readability, maintainability, and can prevent potential logical errors.

What it checks:

• if statements that return boolean literals directly based on a condition.
• Comparisons of boolean expressions with boolean literals (true or false).
• Conditional expressions (ternary operators) that return boolean literals.

Example

// Redundant 'if' statement:
if (condition) {
    return true;
} else {
    return false;
}
// Simplify to:
return condition;

// Redundant comparison:
return a == true;
// Simplify to:
return a;

// Redundant conditional expression:
return b ? true : false;
// Simplify to:
return b;