rspec/rules/S134/flex/rule.adoc

Nested ``++if++``, ``++for++``, ``++while++``, ``++do while++`` and ``++switch++`` statements is a key ingredient for making what's known as "Spaghetti code".
Such code is hard to read, refactor and therefore maintain.

== Noncompliant Code Example

With the default threshold of 3:

----
  if (condition1) {                  // Compliant - depth = 1
    /* ... */
    if (condition2) {                // Compliant - depth = 2
      /* ... */
      for(int i = 0; i < 10; i++) {  // Compliant - depth = 3, not exceeding the limit
        /* ... */
        if (condition4) {            // Noncompliant - depth = 4
          if (condition5) {          // Depth = 5, exceeding the limit, but issues are only reported on depth = 4
            /* ... */
          }
          return;
        }
      }
    }
  }
----