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packages/petitparser/lib/src/lisp/environment.dart

-part of lisp;
+part of petitparser.lisp;
 
-/**
- * Environment of bindings.
- */
+/// Environment of bindings.
 class Environment {
 
-  /** The owning environment. */
+  /// The owning environment.
   final Environment _owner;
 
-  /** The internal environment bindings. */
+  /// The internal environment bindings.
   final Map<Name, dynamic> _bindings;
 
-  /** Constructor for the nested environment. */
+  /// Constructor for the nested environment.
   Environment([this._owner]) : _bindings = new Map();
 
-  /** Constructor for a nested environment. */
+  /// Constructor for a nested environment.
   Environment create() => new Environment(this);
 
-  /** Return the binding for [key]. */
+  /// Return the binding for [key].
   operator [](Name key) {
     if (_bindings.containsKey(key)) {
       return _bindings[key];
     } else if (_owner != null) {
       return _owner[key];
     } else {
       return _invalidBinding(key);
     }
   }
 
-  /** Updates the binding for [key] with a [value]. */
+  /// Updates the binding for [key] with a [value].
   void operator []=(Name key, value) {
     if (_bindings.containsKey(key)) {
       _bindings[key] = value;
     } else if (_owner != null) {
       _owner[key] = value;
     } else {
       _invalidBinding(key);
     }
   }
 
-  /** Defines a new binding from [key] to [value]. */
+  /// Defines a new binding from [key] to [value].
   define(Name key, value) {
     return _bindings[key] = value;
   }
 
-  /** Returns the keys of the bindings. */
+  /// Returns the keys of the bindings.
   Iterable<Name> get keys => _bindings.keys;
 
-  /** Returns the parent of the bindings. */
+  /// Returns the parent of the bindings.
   Environment get owner => _owner;
 
-  /** Called when a missing binding is accessed. */
+  /// Called when a missing binding is accessed.
   _invalidBinding(Name key) {
     throw new ArgumentError('Unknown binding for $key');
   }
 }