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https://gitee.com/langsisi_admin/serein-flow
synced 2026-03-03 00:00:49 +08:00
104 lines
3.0 KiB
C#
104 lines
3.0 KiB
C#
using Serein.Library.Api;
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namespace Serein.Script
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{
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public sealed class ScriptInvokeContext : IScriptInvokeContext
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{
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/// <summary>
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/// 脚本使用流程上下文
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/// </summary>
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/// <param name="flowContext"></param>
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public ScriptInvokeContext(IFlowContext flowContext)
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{
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FlowContext = flowContext;
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}
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/// <summary>
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/// 不使用流程上下文
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/// </summary>
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public ScriptInvokeContext()
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{
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}
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#pragma warning disable CS8766 // 返回类型中引用类型的为 Null 性与隐式实现的成员不匹配(可能是由于为 Null 性特性)。
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public IFlowContext? FlowContext{ get; }
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#pragma warning restore CS8766 // 返回类型中引用类型的为 Null 性与隐式实现的成员不匹配(可能是由于为 Null 性特性)。
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/// <summary>
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/// 定义的变量
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/// </summary>
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private Dictionary<string, object?> _variables = new Dictionary<string, object?>();
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/// <summary>
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/// 取消令牌源,用于控制脚本的执行
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/// </summary>
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private CancellationTokenSource _tokenSource = new CancellationTokenSource();
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/// <summary>
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/// 是否该退出了
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/// </summary>
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public bool IsReturn => _tokenSource.IsCancellationRequested;
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/// <summary>
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/// 是否严格检查 Null 值 (禁止使用 Null)
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/// </summary>
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public bool IsCheckNullValue { get; set; }
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/// <summary>
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/// 是否需要提前返回(用于脚本中提前结束)
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/// </summary>
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public bool IsNeedReturn { get; set; }
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/// <summary>
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/// 获取变量的值
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/// </summary>
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/// <param name="varName"></param>
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/// <returns></returns>
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object? IScriptInvokeContext.GetVarValue(string varName)
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{
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_variables.TryGetValue(varName, out var value);
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return value;
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}
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/// <summary>
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/// 设置变量的值
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/// </summary>
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/// <param name="varName"></param>
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/// <param name="value"></param>
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/// <returns></returns>
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bool IScriptInvokeContext.SetVarValue(string varName, object? value)
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{
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if (!_variables.TryAdd(varName, value))
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{
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_variables[varName] = value;
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}
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return true;
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}
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void IScriptInvokeContext.OnExit()
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{
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// 清理脚本中加载的非托管资源
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foreach (var nodeObj in _variables.Values)
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{
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if (nodeObj is not null)
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{
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if (typeof(IDisposable).IsAssignableFrom(nodeObj?.GetType()) && nodeObj is IDisposable disposable)
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{
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disposable?.Dispose();
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}
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}
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else
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{
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}
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}
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_tokenSource.Cancel();
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_variables.Clear();
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}
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}
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}
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