Class UnusedParameterOrError

java.lang.Object
org.ek9lang.compiler.phase5.UnusedParameterOrError
All Implemented Interfaces:
Consumer<org.antlr.v4.runtime.tree.ParseTree>
final class UnusedParameterOrError extends Object implements Consumer<org.antlr.v4.runtime.tree.ParseTree>
Detects unused parameters in functions, methods, constructors, and service operations (E08091).

Parameters that are declared but never referenced in the body indicate dead code, incomplete implementation, or a signature that should be simplified.

Exemptions (parameters forced by contract):

  • Abstract methods/functions - no body to reference parameters in
  • Override methods - signature forced by parent class or trait
  • Dispatcher methods - must accept dispatched type
  • Dispatcher handler methods - signature forced by dispatch pattern
  • Operators - finite number with strict semantics
  • Functions explicitly extending another function (identifierReference in grammar)
  • Methods on parameterised types - signature forced by generic type contract
  • Defaulted (compiler-generated) methods/operators
  • Externally implemented (Java-backed) methods/functions

  • Constructor Details

  • Method Details

    • accept

      public void accept(org.antlr.v4.runtime.tree.ParseTree node)
      Specified by:
      accept in interface Consumer<org.antlr.v4.runtime.tree.ParseTree>