.net - 带有接口(interface)的代码契约(Contract) : "Method Invocation skipped. Compiler will generate method invocation because the method is conditional... [...]"

Question

晚上好，

我刚开始使用 Microsoft.Contracts(最新版本)并将其插入示例界面之上，现在它看起来像这样:

namespace iRMA2.Core.Interfaces
{
    using System;
    using System.Collections.Generic;
    using System.ComponentModel.Composition;
    using System.Diagnostics.Contracts;

    /// <summary>
    /// Base Interface declarations for iRMA2 Extensions
    /// </summary>
    [InheritedExport]
    [ContractClass(typeof(IiRMA2ExtensionContract))]
    public interface IiRMA2Extension
    {
        /// <summary>
        /// Gets the name.
        /// </summary>
        /// <value>The name of the Extension.</value>
        string Name { get; }

        /// <summary>
        /// Gets the description.
        /// </summary>
        /// <value>The description.</value>
        string Description { get; }

        /// <summary>
        /// Gets the author of the extension. Please provide complete information to get in touch with author(s) and the corresponding department
        /// </summary>
        /// <value>The author of the extensions.</value>
        string Author { get; }

        /// <summary>
        /// Gets the major version.
        /// </summary>
        /// <value>The major version of the extension.</value>
        int MajorVersion { get; }

        /// <summary>
        /// Gets the minor version.
        /// </summary>
        /// <value>The minor version.</value>
        int MinorVersion { get; }

        /// <summary>
        /// Gets the build number.
        /// </summary>
        /// <value>The build number.</value>
        int BuildNumber { get; }

        /// <summary>
        /// Gets the revision.
        /// </summary>
        /// <value>The revision.</value>
        int Revision { get; }

        /// <summary>
        /// Gets the depends on.
        /// </summary>
        /// <value>The dependencies to other <c>IiRMA2Extension</c> this one has.</value>
        IList<IiRMA2Extension> DependsOn { get; }
    }

    /// <summary>
    /// Contract class for <c>IiRMA2Extension</c>
    /// </summary>
    [ContractClassFor(typeof(IiRMA2Extension))]
    internal sealed class IiRMA2ExtensionContract : IiRMA2Extension
    {
        #region Implementation of IiRMA2Extension

        /// <summary>
        /// Gets or sets the name.
        /// </summary>
        /// <value>The name of the Extension.</value>
        public string Name
        {
            get
            {
                Contract.Ensures(!String.IsNullOrEmpty(Contract.Result<string>()));
                return default(string);
            }

            set
            {
                Contract.Requires(value != null);
            }
        }

        /// <summary>
        /// Gets the description.
        /// </summary>
        /// <value>The description.</value>
        public string Description
        {
            get { throw new NotImplementedException(); }
        }

        /// <summary>
        /// Gets the author of the extension. Please provide complete information to get in touch with author(s) and the corresponding department
        /// </summary>
        /// <value>The author of the extensions.</value>
        public string Author
        {
            get { throw new NotImplementedException(); }
        }

        /// <summary>
        /// Gets the major version.
        /// </summary>
        /// <value>The major version of the extension.</value>
        public int MajorVersion
        {
            get { throw new NotImplementedException(); }
        }

        /// <summary>
        /// Gets the minor version.
        /// </summary>
        /// <value>The minor version.</value>
        public int MinorVersion
        {
            get { throw new NotImplementedException(); }
        }

        /// <summary>
        /// Gets the build number.
        /// </summary>
        /// <value>The build number.</value>
        public int BuildNumber
        {
            get { throw new NotImplementedException(); }
        }

        /// <summary>
        /// Gets the revision.
        /// </summary>
        /// <value>The revision.</value>
        public int Revision
        {
            get { throw new NotImplementedException(); }
        }

        /// <summary>
        /// Gets the Extensions this one depends on.
        /// </summary>
        /// <value>The dependencies to other <c>IiRMA2Extension</c> this one has.</value>
        public IList<IiRMA2Extension> DependsOn
        {
            get
            {
                Contract.Ensures(Contract.Result<IList<IiRMA2Extension>>() != null);
                return default(IList<IiRMA2Extension>);
            }
        }

        #endregion
    }
}

现在为什么两个 Contract.Ensures(...) 在视觉上“模糊”了，工具提示说“方法调用已跳过。编译器将生成方法调用，因为该方法是有条件的，或者它是没有实现的部分方法”，实际上是 CodeContracts输出不计算/显示它们......我在这里错过了什么和做错了什么？

-J

Answer 1

您是否为此构建定义了适当的代码协定宏？例如 CONTRACTS_FULL ?没有定义正确的宏可能会导致方法被排除在编译之外。