Add parameter for minimum number of type parameters

Author: xJac0b

lib/src/lints/use_descriptive_names_for_type_parameters/models/use_descriptive_names_for_type_parameters_parameters.dart

@@ -0,0 +1,22 @@
+/// A data model class that represents the
+/// "use descriptive names for type parameters" input parameters.
+class UseDescriptiveNamesForTypeParametersParameters {
+  static const _defaultMinTypeParameters = 3;
+
+  /// Minimum number of type parameters required before the rule is enforced.
+  final int minTypeParameters;
+
+  /// Constructor for [UseDescriptiveNamesForTypeParametersParameters] model
+  const UseDescriptiveNamesForTypeParametersParameters({
+    required this.minTypeParameters,
+  });
+
+  /// Method for creating from json data
+  factory UseDescriptiveNamesForTypeParametersParameters.fromJson(
+    Map<String, Object?> json,
+  ) =>
+      UseDescriptiveNamesForTypeParametersParameters(
+        minTypeParameters:
+            json['min_type_parameters'] as int? ?? _defaultMinTypeParameters,
+      );
+}

lib/src/lints/use_descriptive_names_for_type_parameters/use_descriptive_names_for_type_parameters_rule.dart

@@ -1,13 +1,15 @@
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/error/listener.dart';
 import 'package:custom_lint_builder/custom_lint_builder.dart';
+import 'package:solid_lints/src/lints/use_descriptive_names_for_type_parameters/models/use_descriptive_names_for_type_parameters_parameters.dart';
 import 'package:solid_lints/src/models/rule_config.dart';
 import 'package:solid_lints/src/models/solid_lint_rule.dart';
 
 /// A `use_descriptive_names_for_type_parameters` rule which
 /// warns about single-letter type parameter names when there are
 /// three or more type parameters.
-class UseDescriptiveNamesForTypeParametersRule extends SolidLintRule {
+class UseDescriptiveNamesForTypeParametersRule
+    extends SolidLintRule<UseDescriptiveNamesForTypeParametersParameters> {
   /// The lint rule name.
   static const lintName = 'use_descriptive_names_for_type_parameters';
 
@@ -21,9 +23,11 @@ class UseDescriptiveNamesForTypeParametersRule extends SolidLintRule {
     final rule = RuleConfig(
       configs: configs,
       name: lintName,
-      problemMessage: (_) =>
+      paramsParser: UseDescriptiveNamesForTypeParametersParameters.fromJson,
+      problemMessage: (value) =>
           'Type parameters should have descriptive names instead '
-          'of single letters when there are three or more type parameters.',
+          'of single letters when there are ${value.minTypeParameters} or '
+          'more type parameters.',
     );
 
     return UseDescriptiveNamesForTypeParametersRule._(rule);
@@ -56,7 +60,9 @@ class UseDescriptiveNamesForTypeParametersRule extends SolidLintRule {
     TypeParameterList? typeParameters,
     ErrorReporter reporter,
   ) {
-    if (typeParameters == null || typeParameters.typeParameters.length < 3) {
+    if (typeParameters == null ||
+        typeParameters.typeParameters.length <
+            config.parameters.minTypeParameters) {
       return;
     }
 

lint_test/use_descriptive_names_for_type_parameters_test/analysis_options.yaml

@@ -1,3 +1,4 @@
 custom_lint:
   rules:
-    - use_descriptive_names_for_type_parameters
+    - use_descriptive_names_for_type_parameters:
+      min_type_parameters: 3