package analyzer

// ImmutabilityChecker verifies immutability rules
type ImmutabilityChecker struct {
	errors []Error
}

// NewImmutabilityChecker creates a new immutability checker instance
func NewImmutabilityChecker() *ImmutabilityChecker {
	return &ImmutabilityChecker{}
}

//
//// CheckAssignment verifies that an assignment is valid according to immutability rules
//func (ic *ImmutabilityChecker) CheckAssignment(target ast.Expression, value ast.Expression) error {
//	// TODO: Implement assignment checking
//	// - Variables must be marked as mutable to be assigned
//	// - Struct fields must be mutable to be assigned
//	// - Array elements must be mutable to be assigned
//	return nil
//}
//
//// CheckMutation verifies that a mutation operation is valid
//func (ic *ImmutabilityChecker) CheckMutation(expr ast.Expression) error {
//	switch e := expr.(type) {
//	case *ast.Identifier:
//		return ic.checkIdentifierMutation(e)
//	case *ast.MemberExpr:
//		return ic.checkMemberMutation(e)
//	case *ast.IndexExpr:
//		return ic.checkIndexMutation(e)
//	default:
//		return fmt.Errorf("cannot mutate expression of type %T", expr)
//	}
//}
//
//// checkIdentifierMutation verifies that an identifier can be mutated
//func (ic *ImmutabilityChecker) checkIdentifierMutation(id *ast.Identifier) error {
//	// TODO: Look up identifier in symbol table and check if mutable
//	return nil
//}
//
//// checkMemberMutation verifies that a struct member can be mutated
//func (ic *ImmutabilityChecker) checkMemberMutation(expr *ast.MemberExpr) error {
//	// TODO: Check if struct field is mutable
//	return nil
//}
//
//// checkIndexMutation verifies that an array element can be mutated
//func (ic *ImmutabilityChecker) checkIndexMutation(expr *ast.IndexExpr) error {
//	// TODO: Check if array element type is mutable
//	return nil
//}
//
//// IsMutableType determines if a type is mutable
//func (ic *ImmutabilityChecker) IsMutableType(typ ast.Type) bool {
//	switch t := typ.(type) {
//	case *ast.BasicType:
//		return false // Basic types are always immutable
//	case *ast.ArrayType:
//		return ic.IsMutableType(t.ElementType)
//	case *ast.StructType:
//		// TODO: Check if any fields are mutable
//		return false
//	case *ast.PointerType:
//		return true // Pointers are always mutable
//	default:
//		return false
//	}
//}
