falcon

Rules / Style / camel-case-types

camel-case-types

lint/style/camel-case-types
recommended
Same as camel_case_types · Dart lints

Flags type names that are not UpperCamelCase.

Classes, mixins, enums, extension types, and type aliases are all types and read most predictably when named in UpperCamelCase, matching the rest of the Dart ecosystem. Leading underscores are ignored, then each word must begin with an uppercase letter or $; a name that is entirely underscores is treated as a wildcard and never flagged.

Invalid

example.dartdart
// Type names must be UpperCamelCase.

class my_class {}

class Foo_Bar {}

enum my_enum { a, b }

mixin my_mixin {}

typedef my_callback = void Function();

extension type my_id(int i) {}
Name types using UpperCamelCase.
2
3class my_class {}
Name types using UpperCamelCase.
4
5class Foo_Bar {}
Name types using UpperCamelCase.
6
7enum my_enum { a, b }
Name types using UpperCamelCase.
8
9mixin my_mixin {}
Name types using UpperCamelCase.
10
11typedef my_callback = void Function();
Name types using UpperCamelCase.
12
13extension type my_id(int i) {}

Valid

example.dartdart
// UpperCamelCase type names.

class MyClass {}

class HTTPRequest {}

class _Private {}

enum Color { red, green, blue }

mixin Flying {}

typedef IntList = List<int>;

extension type UserId(int i) {}

How to configure

Set the severity of camel-case-types in your falcon.json:

falcon.jsonjson
{
  "linter": {
    "rules": {
      "style": {
        "camel-case-types": "error"
      }
    }
  }
}

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