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avoid-explicit-pattern-field-name

added in: 1.5.0
style
🛠
Dart 3.0+
Pro+
preset: recommended

Warns when an object pattern has an explicit field name.

In Dart, when a pattern variable name is the same as a field name, the field name can be safely omitted without reducing readability.

Example​

❌ Bad:

const iterable = {...};

// LINT: Avoid explicit field names. Try removing the name.
if (iterable case Set(firstOrNull: final firstOrNull)) {}

// LINT: Avoid explicit field names. Try removing the name.
if (iterable case Set(first: final first)) {}

✅ Good:

const iterable = {...};

if (iterable case Set(:final firstOrNull)) {} // Correct, matching field name is omitted
if (iterable case Set(firstOrNull: final alias)) {} // Correct, different name

if (iterable case Set(:final first)) {}
if (iterable case Set(first: final alias)) {}