DirectInstantiationAnalyzer class

Analyzer that enforces dependency injection for better testability of auth/sync components.

This rule flags all direct instantiations of classes, except:

  • Classes whose names end with 'Factory' (e.g., FileProcessorFactory)
  • Classes that extend 'Module'
  • Any instantiation that occurs inside a class that extends 'Module'
  • Flutter widgets, BLoC states, exceptions, and other legitimate patterns

Example:

// ❌ Not allowed:
final service = AuthService();

// ✅ Allowed:
final service = Modular.get<AuthService>();
final factory = FileProcessorFactory();
final module = AppModule();
final widget = Container();
final state = AuthInitial();

// ✅ Allowed: Instantiation inside a Module
class AppModule extends Module {
  AppModule() {
    final service = AuthService(); // Allowed here
  }
}
Inheritance

Properties

correctionMessage → String
The suggested correction message for fixing a violation of this rule.
no setteroverride
hashCode → int
The hash code for this object.
no setterinherited
problemMessage → String
The main problem message shown when this rule is violated.
no setteroverride
ruleName → String
The unique name of the lint rule implemented by this analyzer.
no setteroverride
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
severity → String
The severity of the lint rule (e.g., 'ERROR', 'WARNING').
no setterinherited

Methods

analyze(CompilationUnit unit) → List<LintIssue>
Analyze the given CompilationUnit and return a list of LintIssues.
override
analyzeWithResolver(CompilationUnit unit, dynamic resolver) → List<LintIssue>
Analyze the given CompilationUnit with resolver context and return a list of LintIssues.
override
createIssue(AstNode node, {String? customMessage}) → LintIssue
Helper to create a LintIssue from an AstNode with consistent formatting.
inherited
isExcludedClass(String className, InstanceCreationExpression node) → bool
Returns true if the class should be excluded from the rule (e.g., Factory or Module classes).
isInsideModule(AstNode node) → bool
Returns true if the given node is inside a class that extends 'Module'.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited