Exemplo n.º 1
0
		/// <summary>
		/// Resolves static properties.
		/// </summary>
		public DProperty/*!*/ ResolveProperty(DType/*!*/ type, VariableName propertyName, Position position, bool staticOnly,
			PhpType referringType, PhpRoutine referringRoutine, out bool checkVisibilityAtRuntime)
		{
			Debug.Assert(type != null);

			checkVisibilityAtRuntime = false;

			// we cannot resolve a property unless we know the inherited members:
			if (type.IsDefinite)
			{
				DProperty property;
				GetMemberResult member_result = type.GetProperty(propertyName, referringType, out property);

				switch (member_result)
				{
					case GetMemberResult.OK:
						if (staticOnly && !property.IsStatic) goto case GetMemberResult.NotFound;
						return property;

					case GetMemberResult.NotFound:
						ErrorSink.Add(Errors.UnknownPropertyAccessed, SourceUnit, position, type.FullName, propertyName);
						return new UnknownProperty(type, propertyName.Value);

					case GetMemberResult.BadVisibility:
						if (referringType == null && referringRoutine == null)
						{
							// visibility must be checked at run-time:
							checkVisibilityAtRuntime = true;
							return property;
						}
						else
						{
							// definitive error:
							if (property.IsPrivate)
							{
								ErrorSink.Add(Errors.PrivatePropertyAccessed, SourceUnit, position, type.FullName, propertyName.Value,
									referringType.FullName);
							}
							else
							{
								ErrorSink.Add(Errors.ProtectedPropertyAccessed, SourceUnit, position, type.FullName, propertyName.Value,
									referringType.FullName);
							}

							return new UnknownProperty(type, propertyName.Value);
						}

					default:
						Debug.Fail();
						throw null;
				}
			}
			else
			{
				// warning (if any) reported by the type resolver:
				return new UnknownProperty(type, propertyName.Value);
			}
		}