unnecessary_constructor_name
Unnecessary .new
constructor name.
Details
#PREFER using the default unnamed Constructor over .new
.
Given a class C
, the named unnamed constructor C.new
refers to the same
constructor as the unnamed C
. As such it adds nothing but visual noise to
invocations and should be avoided (unless being used to identify a constructor
tear-off).
BAD:
dart
class A {
A.new(); // LINT
}
var a = A.new(); // LINT
GOOD:
dart
class A {
A.ok();
}
var a = A();
var aa = A.ok();
var makeA = A.new;
Enable
#To enable the unnecessary_constructor_name
rule,
add unnecessary_constructor_name
under linter > rules in your
analysis_options.yaml
file:
analysis_options.yaml
yaml
linter:
rules:
- unnecessary_constructor_name
If you're instead using the YAML map syntax to configure linter rules,
add unnecessary_constructor_name: true
under linter > rules:
analysis_options.yaml
yaml
linter:
rules:
unnecessary_constructor_name: true
除非另有说明,文档之所提及适用于 Dart 3.7.2 版本,本页面最后更新时间: 2025-03-07。 查看文档源码 或者 报告页面问题。