mirror of
https://gitee.com/langsisi_admin/serein-flow
synced 2026-03-03 00:00:49 +08:00
776 lines
32 KiB
C#
776 lines
32 KiB
C#
using Newtonsoft.Json.Linq;
|
||
using Serein.Library;
|
||
using Serein.Library.Utils;
|
||
using Serein.Script.Node;
|
||
using Serein.Script.Node.FlowControl;
|
||
using System.ComponentModel.Design;
|
||
using System.Reflection;
|
||
using System.Reflection.Metadata.Ecma335;
|
||
using System.Runtime.CompilerServices;
|
||
using System.Threading.Tasks;
|
||
using System.Xml.Linq;
|
||
|
||
namespace Serein.Script
|
||
{
|
||
|
||
/// <summary>
|
||
/// 脚本解释器，负责解析和执行 Serein 脚本
|
||
/// </summary>
|
||
public class SereinScriptInterpreter
|
||
{
|
||
private readonly Dictionary<ASTNode, Type> symbolInfos;
|
||
|
||
public SereinScriptInterpreter(Dictionary<ASTNode, Type> symbolInfos)
|
||
{
|
||
this.symbolInfos = symbolInfos;
|
||
}
|
||
|
||
|
||
|
||
|
||
/// <summary>
|
||
/// 入口节点
|
||
/// </summary>
|
||
/// <param name="programNode"></param>
|
||
/// <returns></returns>
|
||
private async Task<object?> ExecutionProgramNodeAsync(IScriptInvokeContext context,ProgramNode programNode)
|
||
{
|
||
// 加载变量
|
||
ASTNode statement = null;
|
||
try
|
||
{
|
||
// 遍历 ProgramNode 中的所有语句并执行它们
|
||
for (int index = 0; index < programNode.Statements.Count; index++)
|
||
{
|
||
statement = programNode.Statements[index];
|
||
// 直接退出
|
||
if (statement is ReturnNode returnNode) // 遇到 Return 语句 提前退出
|
||
{
|
||
return await EvaluateAsync(context, statement);
|
||
}
|
||
else
|
||
{
|
||
var result = await InterpretAsync(context, statement);
|
||
if (context.IsNeedReturn)
|
||
{
|
||
return result;
|
||
}
|
||
}
|
||
}
|
||
return null;
|
||
}
|
||
catch (Exception ex )
|
||
{
|
||
if(statement is not null)
|
||
{
|
||
SereinEnv.WriteLine(InfoType.ERROR, $"脚本异常发生在[行{statement.Row}]：{ex.Message}{Environment.NewLine}\t{statement.Code}");
|
||
}
|
||
throw;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 类型定义
|
||
/// </summary>
|
||
/// <param name="programNode"></param>
|
||
/// <returns></returns>
|
||
private void ExecutionClassTypeDefinitionNode(ClassTypeDefinitionNode classTypeDefinitionNode)
|
||
{
|
||
var className = classTypeDefinitionNode.ClassType.TypeName;
|
||
if (SereinScript.MountType.ContainsKey(className) && !classTypeDefinitionNode.IsOverlay)
|
||
{
|
||
//SereinEnv.WriteLine(InfoType.WARN, $"异常信息 : 类型重复定义，代码在第{classTypeDefinitionNode.Row}行: {classTypeDefinitionNode.Code.Trim()}");
|
||
return;
|
||
}
|
||
if(DynamicObjectHelper.GetCacheType(className) == null)
|
||
{
|
||
var propertyTypes = classTypeDefinitionNode.Propertys.ToDictionary(p => p.Key, p => symbolInfos[p.Value]);
|
||
var type = DynamicObjectHelper.CreateTypeWithProperties(propertyTypes, className); // 覆盖
|
||
SereinScript.MountType[className] = type; // 定义对象
|
||
}
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// IF...ELSE... 语句块
|
||
/// </summary>
|
||
/// <param name="ifNode"></param>
|
||
/// <returns></returns>
|
||
/// <exception cref="Exception"></exception>
|
||
private async Task<object?> ExecutionIfNodeAsync(IScriptInvokeContext context, IfNode ifNode)
|
||
{
|
||
var result = await EvaluateAsync(context, ifNode.Condition) ?? throw new SereinSciptException(ifNode, $"条件语句返回了 null");
|
||
|
||
if (result is not bool condition)
|
||
{
|
||
throw new SereinSciptException(ifNode, "条件语句返回值不为 bool 类型");
|
||
}
|
||
|
||
var branchNodes = condition ? ifNode.TrueBranch : ifNode.FalseBranch;
|
||
if(branchNodes is null || branchNodes.Count < 1)
|
||
{
|
||
return null;
|
||
}
|
||
else
|
||
{
|
||
|
||
foreach (var branchNode in branchNodes)
|
||
{
|
||
if (branchNode is ReturnNode) // 遇到 Return 语句 提前退出
|
||
{
|
||
var reulst = await EvaluateAsync(context, branchNode);
|
||
context.IsNeedReturn = true;
|
||
return reulst;
|
||
}
|
||
else
|
||
{
|
||
await InterpretAsync(context, branchNode);
|
||
}
|
||
}
|
||
return null;
|
||
}
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// WHILE(){...} 语句块
|
||
/// </summary>
|
||
/// <param name="whileNode"></param>
|
||
/// <returns></returns>
|
||
/// <exception cref="Exception"></exception>
|
||
private async Task<object?> ExectutionWhileNodeAsync(IScriptInvokeContext context, WhileNode whileNode)
|
||
{
|
||
|
||
while (true)
|
||
{
|
||
if (context.IsReturn) // 停止流程
|
||
{
|
||
throw new SereinSciptException(whileNode, $"while循环已由外部主动停止");
|
||
}
|
||
var result = await EvaluateAsync(context, whileNode.Condition) ?? throw new SereinSciptException(whileNode, $"条件语句返回了 null");
|
||
if (result is not bool condition)
|
||
{
|
||
throw new SereinSciptException(whileNode, $"条件语句返回值不为 bool 类型（当前返回值类型为 {result.GetType()})");
|
||
}
|
||
if (!condition)
|
||
{
|
||
break;
|
||
}
|
||
foreach(var branchNode in whileNode.Body)
|
||
{
|
||
if (branchNode is ReturnNode) // 遇到 Return 语句 提前退出
|
||
{
|
||
var reulst = await EvaluateAsync(context, branchNode);
|
||
context.IsNeedReturn = true;
|
||
return reulst;
|
||
}
|
||
else
|
||
{
|
||
await InterpretAsync(context, branchNode);
|
||
}
|
||
//await InterpretAsync(context, node);
|
||
}
|
||
}
|
||
return null;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 操作节点
|
||
/// </summary>
|
||
/// <param name="assignmentNode"></param>
|
||
/// <returns></returns>
|
||
private async Task ExecutionAssignmentNodeAsync(IScriptInvokeContext context, AssignmentNode assignmentNode)
|
||
{
|
||
if(assignmentNode.Target is IdentifierNode identifierNode)
|
||
{
|
||
var value = await EvaluateAsync(context, assignmentNode.Value);
|
||
if (value is not null)
|
||
{
|
||
context.SetVarValue(identifierNode.Name, value);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
|
||
}
|
||
/*var targetObject = await EvaluateAsync(context, assignmentNode.TargetNode);
|
||
var value = await EvaluateAsync(context, assignmentNode.Value);
|
||
if(value is not null)
|
||
{
|
||
context.SetVarValue(targetObject, value);
|
||
}*/
|
||
}
|
||
|
||
|
||
|
||
private async Task<object> InterpretFunctionCallAsync(IScriptInvokeContext context, FunctionCallNode functionCallNode)
|
||
{
|
||
if (functionCallNode.FunctionName.Equals("GetFlowContext", StringComparison.OrdinalIgnoreCase))
|
||
{
|
||
return context.FlowContext;
|
||
}
|
||
|
||
// 评估函数参数
|
||
var arguments = new object?[functionCallNode.Arguments.Count];
|
||
for (int i = 0; i < functionCallNode.Arguments.Count; i++)
|
||
{
|
||
ASTNode? arg = functionCallNode.Arguments[i];
|
||
arguments[i] = await EvaluateAsync(context, arg); // 评估每个参数
|
||
}
|
||
|
||
var funcName = functionCallNode.FunctionName;
|
||
|
||
object? instance = null; // 静态方法不需要传入实例，所以可以传入null
|
||
|
||
|
||
// 查找并执行对应的函数
|
||
if (SereinScript.FunctionDelegates .TryGetValue(funcName, out DelegateDetails? function))
|
||
{
|
||
if (!function.EmitMethodInfo.IsStatic)
|
||
{
|
||
if(SereinScript.DelegateInstances.TryGetValue(funcName, out var action))
|
||
{
|
||
instance = action.Invoke();// 非静态的方法需要获取相应的实例
|
||
|
||
if (instance is null)
|
||
{
|
||
throw new SereinSciptException(functionCallNode, $"函数 {funcName} 尝试获取实例时返回了 null ");
|
||
}
|
||
}
|
||
else
|
||
{
|
||
throw new SereinSciptException(functionCallNode, $"挂载函数 {funcName} 时需要同时给定获取实例的 Func<object>");
|
||
}
|
||
}
|
||
|
||
var result = await function.InvokeAsync(instance,arguments);
|
||
return result;
|
||
}
|
||
else
|
||
{
|
||
throw new Exception($"Unknown function: {functionCallNode.FunctionName}");
|
||
}
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 解释操作
|
||
/// </summary>
|
||
/// <param name="context"></param>
|
||
/// <param name="node"></param>
|
||
/// <returns></returns>
|
||
/// <exception cref="SereinSciptException"></exception>
|
||
public async Task<object?> InterpretAsync(IScriptInvokeContext context, ASTNode node)
|
||
{
|
||
if(node == null)
|
||
{
|
||
return null;
|
||
}
|
||
|
||
switch (node)
|
||
{
|
||
case ProgramNode programNode: // AST树入口
|
||
|
||
var scritResult = await ExecutionProgramNodeAsync(context, programNode);
|
||
return scritResult; // 遍历 ProgramNode 中的所有语句并执行它们
|
||
case ClassTypeDefinitionNode classTypeDefinitionNode: // 定义类型
|
||
ExecutionClassTypeDefinitionNode(classTypeDefinitionNode);
|
||
break;
|
||
case AssignmentNode assignment: // 出现在 = 右侧的表达式
|
||
await ExecutionAssignmentNodeAsync(context, assignment);
|
||
break;
|
||
case CollectionAssignmentNode collectionAssignmentNode:
|
||
await SetCollectionValue(context,collectionAssignmentNode);
|
||
break;
|
||
case ExpressionNode objectMemberExpressionNode:
|
||
break;
|
||
case MemberAssignmentNode memberAssignmentNode: // 设置对象属性
|
||
await SetMemberValue(context, memberAssignmentNode);
|
||
break;
|
||
case MemberFunctionCallNode memberFunctionCallNode: // 对象方法调用
|
||
return await CallMemberFunction(context, memberFunctionCallNode);
|
||
case IfNode ifNode: // 执行 if...else... 语句块
|
||
return await ExecutionIfNodeAsync(context, ifNode);
|
||
break;
|
||
case WhileNode whileNode: // 循环语句块
|
||
return await ExectutionWhileNodeAsync(context, whileNode);
|
||
break;
|
||
case FunctionCallNode functionCallNode: // 方法调用节点
|
||
return await InterpretFunctionCallAsync(context, functionCallNode);
|
||
case ReturnNode returnNode:
|
||
return await EvaluateAsync(context, returnNode);
|
||
default:
|
||
throw new SereinSciptException(node, "解释器 InterpretAsync() 未实现节点行为");
|
||
}
|
||
return null;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 评估
|
||
/// </summary>
|
||
/// <param name="context"></param>
|
||
/// <param name="node"></param>
|
||
/// <returns></returns>
|
||
/// <exception cref="SereinSciptException"></exception>
|
||
private async Task<object?> EvaluateAsync(IScriptInvokeContext context, ASTNode node)
|
||
{
|
||
if(node == null)
|
||
{
|
||
return null;
|
||
}
|
||
switch (node)
|
||
{
|
||
case NullNode nullNode:
|
||
return null;
|
||
case BooleanNode booleanNode:
|
||
return booleanNode.Value; // 返回数值
|
||
case NumberIntNode numberNode:
|
||
return numberNode.Value; // 返回 int 整型数
|
||
case NumberLongNode numberNode:
|
||
return numberNode.Value; // 返回 long 整型数
|
||
case NumberFloatNode numberNode:
|
||
return numberNode.Value; // 返回 float 浮点型
|
||
case NumberDoubleNode numberNode:
|
||
return numberNode.Value; // 返回 double 浮点型
|
||
case StringNode stringNode:
|
||
return stringNode.Value; // 返回字符串值
|
||
case CharNode charNode:
|
||
return charNode.Value; // 返回Char
|
||
case IdentifierNode identifierNode:
|
||
return context.GetVarValue(identifierNode.Name);
|
||
//throw new SereinSciptException(identifierNode, "尝试使用值为null的变量");
|
||
//throw new SereinSciptException(identifierNode, "尝试使用未声明的变量");
|
||
case BinaryOperationNode binOpNode:
|
||
// 递归计算二元操作
|
||
var left = await EvaluateAsync(context, binOpNode.Left);
|
||
//if (left == null ) throw new SereinSciptException(binOpNode.Left, $"左值尝试使用 null");
|
||
var right = await EvaluateAsync(context, binOpNode.Right);
|
||
//if (right == null) throw new SereinSciptException(binOpNode.Right, "右值尝试使用计算 null");
|
||
return EvaluateBinaryOperation(left, binOpNode.Operator, right);
|
||
case ObjectInstantiationNode objectInstantiationNode: // 对象实例化
|
||
if (!SereinScript.MountType.TryGetValue(objectInstantiationNode.Type.TypeName, out var type))
|
||
{
|
||
type = symbolInfos[objectInstantiationNode.Type];
|
||
if (type is null)
|
||
{
|
||
throw new SereinSciptException(objectInstantiationNode, $"使用了未定义的类型\"{objectInstantiationNode.Type.TypeName}\"");
|
||
}
|
||
}
|
||
object?[] args = new object[objectInstantiationNode.Arguments.Count];
|
||
for (int i = 0; i < objectInstantiationNode.Arguments.Count; i++)
|
||
{
|
||
var argNode = objectInstantiationNode.Arguments[i];
|
||
args[i] = await EvaluateAsync(context, argNode);
|
||
}
|
||
var obj = Activator.CreateInstance(type, args: args);// 创建对象
|
||
if (obj == null)
|
||
{
|
||
throw new SereinSciptException(objectInstantiationNode, $"类型创建失败\"{objectInstantiationNode.Type.TypeName}\"");
|
||
}
|
||
for (int i = 0; i < objectInstantiationNode.CtorAssignments.Count; i++)
|
||
{
|
||
var ctorAssignmentNode = objectInstantiationNode.CtorAssignments[i];
|
||
var propertyName = ctorAssignmentNode.MemberName;
|
||
var value = await EvaluateAsync(context, ctorAssignmentNode.Value);
|
||
SetPropertyValue(obj, propertyName, value);
|
||
}
|
||
|
||
return obj;
|
||
case FunctionCallNode callNode: // 调用方法
|
||
return await InterpretFunctionCallAsync(context, callNode); // 调用方法返回函数的返回值
|
||
case MemberFunctionCallNode memberFunctionCallNode: // 对象方法调用
|
||
return await CallMemberFunction(context, memberFunctionCallNode);
|
||
case MemberAccessNode memberAccessNode: // 对象成员访问
|
||
return await GetMemberValue(context, memberAccessNode);
|
||
case CollectionIndexNode collectionIndexNode:
|
||
return await GetCollectionValue(context, collectionIndexNode);
|
||
case ReturnNode returnNode: // 返回内容
|
||
return await EvaluateAsync(context, returnNode.Value); // 直接返回响应的内容
|
||
case ExpressionNode expressionNode: // 表达式
|
||
return await EvaluateAsync(context, expressionNode.Value);
|
||
default:
|
||
throw new SereinSciptException(node, $"解释器 EvaluateAsync() 未实现{node}节点行为");
|
||
}
|
||
}
|
||
|
||
private object EvaluateBinaryOperation(object left, string op, object right)
|
||
{
|
||
return BinaryOperationEvaluator.EvaluateValue(left, op, right);
|
||
|
||
// 根据运算符执行不同的运算
|
||
switch (op)
|
||
{
|
||
case "+":
|
||
if (left is string || right is string)
|
||
{
|
||
return left?.ToString() + right?.ToString(); // 字符串拼接
|
||
}
|
||
else if (left is int leftInt && right is int rightInt)
|
||
{
|
||
return leftInt + rightInt; // 整数加法
|
||
}
|
||
else if (left is long leftLong && right is long rightLong)
|
||
{
|
||
return leftLong + rightLong; // 整数加法
|
||
}
|
||
else if (left is double leftDouble && right is double rightDouble)
|
||
{
|
||
return leftDouble + rightDouble; // 整数加法
|
||
}
|
||
else
|
||
{
|
||
dynamic leftValue = Convert.ToDouble(left);
|
||
dynamic rightValue = Convert.ToDouble(right);
|
||
return leftValue + rightValue;
|
||
}
|
||
throw new Exception("Invalid types for + operator");
|
||
case "-":
|
||
return (int)left - (int)right;
|
||
case "*":
|
||
return (int)left * (int)right;
|
||
case "/":
|
||
return (int)left / (int)right;
|
||
|
||
case ">":
|
||
return (int)left > (int)right;
|
||
case "<":
|
||
return (int)left < (int)right;
|
||
case "==":
|
||
return Equals(left, right);
|
||
case "!=":
|
||
return !Equals(left, right);
|
||
|
||
default:
|
||
throw new NotImplementedException("未定义的操作符: " + op);
|
||
}
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 设置对象成员
|
||
/// </summary>
|
||
/// <param name="memberAssignmentNode"></param>
|
||
/// <returns></returns>
|
||
/// <exception cref="SereinSciptException"></exception>
|
||
public async Task SetMemberValue(IScriptInvokeContext context, MemberAssignmentNode memberAssignmentNode)
|
||
{
|
||
var target = await EvaluateAsync(context, memberAssignmentNode.Object);
|
||
var value = await EvaluateAsync(context, memberAssignmentNode.Value);
|
||
// 设置值
|
||
var lastMember = memberAssignmentNode.MemberName;
|
||
|
||
var lastProperty = target?.GetType().GetProperty(lastMember);
|
||
if (lastProperty is null)
|
||
{
|
||
var lastField = target?.GetType().GetRuntimeField(lastMember);
|
||
if (lastField is null)
|
||
{
|
||
throw new SereinSciptException(memberAssignmentNode, $"对象没有成员\"{memberAssignmentNode.MemberName}\"");
|
||
}
|
||
else
|
||
{
|
||
var convertedValue = Convert.ChangeType(value, lastField.FieldType);
|
||
lastField.SetValue(target, convertedValue);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if(value is null)
|
||
{
|
||
lastProperty.SetValue(target, null);
|
||
return;
|
||
}
|
||
var valueTtpe = value.GetType();
|
||
if (lastProperty.PropertyType.IsAssignableFrom(valueTtpe))
|
||
{
|
||
lastProperty.SetValue(target, value);
|
||
}
|
||
else if (lastProperty.PropertyType.FullName == valueTtpe.FullName)
|
||
{
|
||
lastProperty.SetValue(target, value);
|
||
}
|
||
else {
|
||
throw new SereinSciptException(memberAssignmentNode, $"对象成员赋值时类型异常：\"{memberAssignmentNode.MemberName}\"");
|
||
}
|
||
//var convertedValue = Convert.ChangeType(value, );
|
||
}
|
||
}
|
||
|
||
public void SetPropertyValue(object target, string memberName, object? value)
|
||
{
|
||
var targetType = target?.GetType();
|
||
if (targetType is null) return;
|
||
var propertyInfo = targetType.GetProperty(memberName);
|
||
if (propertyInfo is null)
|
||
{
|
||
var fieldInfo = target?.GetType().GetRuntimeField(memberName);
|
||
if (fieldInfo is null)
|
||
{
|
||
throw new Exception($"类型 {targetType} 对象没有成员\"{memberName}\"");
|
||
}
|
||
else
|
||
{
|
||
var convertedValue = Convert.ChangeType(value, fieldInfo.FieldType);
|
||
fieldInfo.SetValue(target, convertedValue);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (value is null)
|
||
{
|
||
propertyInfo.SetValue(target, null);
|
||
return;
|
||
}
|
||
var valueTtpe = value.GetType();
|
||
if (propertyInfo.PropertyType.IsAssignableFrom(valueTtpe))
|
||
{
|
||
propertyInfo.SetValue(target, value);
|
||
}
|
||
else if (propertyInfo.PropertyType.FullName == valueTtpe.FullName)
|
||
{
|
||
propertyInfo.SetValue(target, value);
|
||
}
|
||
else
|
||
{
|
||
throw new Exception($"类型 {targetType} 对象成员\"{memberName}\" 赋值时异常");
|
||
}
|
||
//var convertedValue = Convert.ChangeType(value, );
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获取对象成员
|
||
/// </summary>
|
||
/// <param name="memberAccessNode"></param>
|
||
/// <returns></returns>
|
||
/// <exception cref="SereinSciptException"></exception>
|
||
public async Task<object?> GetMemberValue(IScriptInvokeContext context, MemberAccessNode memberAccessNode)
|
||
{
|
||
var target = await EvaluateAsync(context, memberAccessNode.Object);
|
||
var lastMember = memberAccessNode.MemberName;
|
||
|
||
var lastProperty = target?.GetType().GetProperty(lastMember);
|
||
if (lastProperty is null)
|
||
{
|
||
var lastField = target?.GetType().GetRuntimeField(lastMember);
|
||
if (lastField is null)
|
||
{
|
||
throw new SereinSciptException(memberAccessNode, $"对象没有成员\"{memberAccessNode.MemberName}\"");
|
||
}
|
||
else
|
||
{
|
||
return lastField.GetValue(target);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
return lastProperty.GetValue(target);
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获取集合中的成员
|
||
/// </summary>
|
||
/// <param name="memberAccessNode"></param>
|
||
/// <returns></returns>
|
||
/// <exception cref="SereinSciptException"></exception>
|
||
public async Task<object?> GetCollectionValue(IScriptInvokeContext context, CollectionIndexNode collectionIndexNode)
|
||
{
|
||
var target = await EvaluateAsync(context, collectionIndexNode.Collection); // 获取对象
|
||
if (target is null)
|
||
{
|
||
throw new ArgumentNullException($"解析{collectionIndexNode}节点时，TargetValue返回空。");
|
||
}
|
||
|
||
// 解析数组/集合名与索引部分
|
||
var targetType = target.GetType(); // 目标对象的类型
|
||
#region 处理键值对
|
||
if (targetType.IsGenericType && targetType.GetGenericTypeDefinition() == typeof(Dictionary<,>))
|
||
{
|
||
// 目标是键值对
|
||
var method = targetType.GetMethod("get_Item", BindingFlags.Public | BindingFlags.Instance);
|
||
if (method is not null)
|
||
{
|
||
var key = await EvaluateAsync(context, collectionIndexNode.Index); // 获取索引值;
|
||
var result = method.Invoke(target, new object[] { key });
|
||
return result;
|
||
}
|
||
}
|
||
#endregion
|
||
#region 处理集合对象
|
||
else
|
||
{
|
||
var indexValue = await EvaluateAsync(context, collectionIndexNode.Index); // 获取索引值
|
||
object? result;
|
||
if (indexValue is int index)
|
||
{
|
||
// 获取数组或集合对象
|
||
// 访问数组或集合中的指定索引
|
||
if (target is Array array)
|
||
{
|
||
if (index < 0 || index >= array.Length)
|
||
{
|
||
throw new ArgumentException($"解析{collectionIndexNode}节点时，数组下标越界。");
|
||
}
|
||
result = array.GetValue(index);
|
||
return result;
|
||
}
|
||
else if (target is IList<object> list)
|
||
{
|
||
if (index < 0 || index >= list.Count)
|
||
{
|
||
throw new ArgumentException($"解析{collectionIndexNode}节点时，数组下标越界。");
|
||
}
|
||
result = list[index];
|
||
return result;
|
||
}
|
||
else if (target is string chars)
|
||
{
|
||
return chars[index];
|
||
}
|
||
else
|
||
{
|
||
throw new ArgumentException($"解析{collectionIndexNode}节点时，左值并非有效集合。");
|
||
}
|
||
}
|
||
}
|
||
#endregion
|
||
|
||
throw new ArgumentException($"解析{collectionIndexNode}节点时，左值并非有效集合。");
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 设置集合中的成员
|
||
/// </summary>
|
||
/// <param name="memberAccessNode"></param>
|
||
/// <returns></returns>
|
||
/// <exception cref="SereinSciptException"></exception>
|
||
public async Task SetCollectionValue(IScriptInvokeContext context, CollectionAssignmentNode collectionAssignmentNode)
|
||
{
|
||
var collectionValue = await EvaluateAsync(context, collectionAssignmentNode.Collection.Collection);
|
||
var indexValue = await EvaluateAsync(context, collectionAssignmentNode.Collection.Index);
|
||
|
||
if (collectionValue is null)
|
||
{
|
||
throw new ArgumentNullException($"解析{collectionAssignmentNode}节点时，集合返回空。");
|
||
}
|
||
if (indexValue is null)
|
||
{
|
||
throw new ArgumentNullException($"解析{collectionAssignmentNode}节点时，索引返回空。");
|
||
}
|
||
|
||
// 解析数组/集合名与索引部分
|
||
var targetType = collectionValue.GetType(); // 目标对象的类型
|
||
#region 处理键值对
|
||
if (targetType.IsGenericType && targetType.GetGenericTypeDefinition() == typeof(Dictionary<,>))
|
||
{
|
||
// 目标是键值对
|
||
var method = targetType.GetMethod("set_Item", BindingFlags.Public | BindingFlags.Instance);
|
||
if (method is not null)
|
||
{
|
||
var valueValue = await EvaluateAsync(context, collectionAssignmentNode.Value);
|
||
method.Invoke(collectionValue, [indexValue, valueValue]);
|
||
}
|
||
}
|
||
#endregion
|
||
#region 处理集合对象
|
||
else
|
||
{
|
||
if (indexValue is int index)
|
||
{
|
||
// 获取数组或集合对象
|
||
// 访问数组或集合中的指定索引
|
||
if (collectionValue is Array array)
|
||
{
|
||
if (index < 0 || index >= array.Length)
|
||
{
|
||
throw new ArgumentException($"解析{collectionValue}节点时，数组下标越界。");
|
||
}
|
||
var valueValue = await EvaluateAsync(context, collectionAssignmentNode.Value);
|
||
array.SetValue(valueValue, index);
|
||
return;
|
||
}
|
||
else if (collectionValue is IList<object> list)
|
||
{
|
||
if (index < 0 || index >= list.Count)
|
||
{
|
||
throw new ArgumentException($"解析{collectionValue}节点时，数组下标越界。");
|
||
}
|
||
var valueValue = await EvaluateAsync(context, collectionAssignmentNode.Value);
|
||
list[index] = valueValue;
|
||
return;
|
||
}
|
||
else
|
||
{
|
||
throw new ArgumentException($"解析{collectionValue}节点时，左值并非有效集合。");
|
||
}
|
||
}
|
||
}
|
||
#endregion
|
||
|
||
throw new ArgumentException($"解析{collectionValue}节点时，左值并非有效集合。");
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 缓存method委托
|
||
/// </summary>
|
||
private Dictionary<long, DelegateDetails> MethodToDelegateCaches { get; } = new Dictionary<long, DelegateDetails>();
|
||
|
||
public async Task<object?> CallMemberFunction(IScriptInvokeContext context, MemberFunctionCallNode memberFunctionCallNode)
|
||
{
|
||
var target = await EvaluateAsync(context, memberFunctionCallNode.Object);
|
||
var lastMember = memberFunctionCallNode.FunctionName;
|
||
if(lastMember == "ToUpper")
|
||
{
|
||
|
||
}
|
||
MethodInfo? methodInfo = null;
|
||
if (memberFunctionCallNode.Arguments.Count == 0)
|
||
{
|
||
|
||
// 查询无参方法
|
||
methodInfo = target?.GetType().GetMethod(lastMember, []) ?? throw new SereinSciptException(memberFunctionCallNode, $"对象没有方法\"{memberFunctionCallNode.FunctionName}\"");
|
||
}
|
||
else
|
||
{
|
||
// 获取参数列表的类型
|
||
methodInfo = target?.GetType().GetMethod(lastMember) ?? throw new SereinSciptException(memberFunctionCallNode, $"对象没有方法\"{memberFunctionCallNode.FunctionName}\"");
|
||
|
||
}
|
||
|
||
/*Type[] paramTypes = new
|
||
{
|
||
|
||
}*/
|
||
|
||
if (!MethodToDelegateCaches.TryGetValue(methodInfo.MetadataToken, out DelegateDetails? delegateDetails))
|
||
{
|
||
delegateDetails = new DelegateDetails(methodInfo);
|
||
MethodToDelegateCaches[methodInfo.MetadataToken] = delegateDetails;
|
||
}
|
||
|
||
if(memberFunctionCallNode.Arguments.Count == 0)
|
||
{
|
||
var reuslt = await delegateDetails.InvokeAsync(target, []);
|
||
return reuslt;
|
||
}
|
||
else
|
||
{
|
||
var arguments = new object?[memberFunctionCallNode.Arguments.Count];
|
||
for (int i = 0; i < memberFunctionCallNode.Arguments.Count; i++)
|
||
{
|
||
ASTNode? arg = memberFunctionCallNode.Arguments[i];
|
||
arguments[i] = await EvaluateAsync(context, arg); // 评估每个参数
|
||
}
|
||
var reuslt = await delegateDetails.InvokeAsync(target, arguments);
|
||
return reuslt;
|
||
}
|
||
|
||
}
|
||
|
||
|
||
}
|
||
}
|
