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prefer-shorthands-with-constructors

v1.33.0
style
effort: 2m
dart 3.10+
configurable
has IDE fix
has auto-fix
starter+

Suggests using dot shorthand constructor invocations for the configured list of classes.

note

This rule only works for arguments (both positional and named).

⚙️ Config​

Set entries (default is [EdgeInsets, BorderRadius, Radius, Border]) to configure the list of classes that should be used as dot shorthands.

analysis_options.yaml
dcm:
  rules:
    - prefer-shorthands-with-constructors:
        entries:
          - EdgeInsets
          - BorderRadius
          - Radius
          - Border

Example​

❌ Bad:

Padding(
  // LINT: Prefer dot shorthands instead of explicit class instantiations.
  //  Try using the dot shorthand constructor.
  padding: EdgeInsets.symmetric(
    horizontal: horizontalPadding(screenWidth),
    vertical: 12,
  ),
);

BoxDecoration(
  color: Colors.transparent,
  // LINT: Prefer dot shorthands instead of explicit class instantiations.
  //  Try using the dot shorthand constructor.
  border: Border.all(
    color: AppColors.primary.withOpacity(_controller.value),
    width: 2,
  ),
  // LINT: Prefer dot shorthands instead of explicit class instantiations.
  //  Try using the dot shorthand constructor.
  borderRadius: BorderRadius.circular(18),
);

✅ Good:

Padding(
  padding: .symmetric(
    horizontal: horizontalPadding(screenWidth),
    vertical: 12,
  ),
);

BoxDecoration(
  color: Colors.transparent,
  border: .all(
    color: AppColors.primary.withOpacity(_controller.value),
    width: 2,
  ),
  borderRadius: .circular(18),
);
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