avoid-nested-try-statements

v1.27.0

style

configurable

pro+

Warns when a try statement contains another try statement.

Multiple nested try statements can significantly reduce readability.

⚙️ Config

Set acceptable-level (default is 2) to configure the acceptable nesting level.

analysis_options.yaml

dart_code_metrics:
  rules:
    - avoid-nested-try-statements:
        acceptable-level: 2

Example

❌ Bad:

try {
  // ...
  
  try {
    // ...

    // LINT: Avoid nested try statements. Try rewriting the code to remove nesting.
    try {
      throw Error();
    } catch (_) {}
  } catch (_) {}
} catch (_) {}

✅ Good:

try {
  try {
    throw Error();
  } catch (_) {}
} catch (_) {}