avoid_final_parameters
Avoid final
for parameter declarations.
Details
#AVOID declaring parameters as final
.
Declaring parameters as final
can lead to unnecessarily verbose code,
especially when using the "parameter_assignments" rule.
BAD:
dart
void goodParameter(final String label) { // LINT
print(label);
}
GOOD:
dart
void badParameter(String label) { // OK
print(label);
}
BAD:
dart
void goodExpression(final int value) => print(value); // LINT
GOOD:
dart
void badExpression(int value) => print(value); // OK
BAD:
dart
[1, 4, 6, 8].forEach((final value) => print(value + 2)); // LINT
GOOD:
dart
[1, 4, 6, 8].forEach((value) => print(value + 2)); // OK
Incompatible rules
#The avoid_final_parameters
rule is incompatible with the following rules:
Enable
#To enable the avoid_final_parameters
rule,
add avoid_final_parameters
under linter > rules in your
analysis_options.yaml
file:
analysis_options.yaml
yaml
linter:
rules:
- avoid_final_parameters
If you're instead using the YAML map syntax to configure linter rules,
add avoid_final_parameters: true
under linter > rules:
analysis_options.yaml
yaml
linter:
rules:
avoid_final_parameters: true