avoid-if-with-many-branches

Reports long if/else-if chains; replace them with a switch or extracted helpers.

max-branches (integer, default: 3) counts every if and the final else.

Invalid

example.dartdart

void handle(int x) {
  if (x == 0) {
    print(0);
  } else if (x == 1) { print(1); } else { print(2); }
}

If chain has 3 branches (max 2). Replace it with a switch or extracted helpers.

1void handle(int x) {

2 if (x == 0) {

∙

example.dartdart

void handle(int x) {
  if (x == 0) { print(0); } else { print(1); }
  if (x == 2) { if (x > 0) { print(2); } }
}

Set its severity in falcon.json. See the configuration guide.

falcon.jsonjson

{
  "linter": {
    "rules": {
      "complexity": {
        "avoid-if-with-many-branches": "error"
      }
    }
  }
}

Or silence one occurrence with a suppression comment; the reason is required.

example.dartdart

// falcon-ignore lint/complexity/avoid-if-with-many-branches: <reason>

avoid-inverted-boolean-expressionsavoid_inverted_boolean_expressionsrecommended
Flags a doubly-negated boolean expression such as !!x.
avoid-long-records
Reports record values and record types with too many fields.
avoid-nested-conditional-expressionsavoid-nested-conditional-expressions
Flags a ternary conditional expression nested inside another ternary.
avoid-nested-ifavoid_nested_if
Flags an if statement whose then-branch contains nested if statements.
avoid-nested-switch-expressions
Reports deeply nested switch expressions.
avoid-nested-switches
Reports deeply nested switch statements.
avoid-nested-try-statements
Reports deeply nested try statements.
avoid-redundant-asyncavoid-redundant-asyncrecommended
Flags an async function whose body is a single return await ...;.