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示例工程版本提升至net462，项目添加了部分空引用检测逻辑。累了，消不完的空引用警告(T.T）

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This commit is contained in:
fengjiayi
2024-09-30 22:20:02 +08:00
parent 8ecbdfa7a6
commit e4aa3b6185
45 changed files with 562 additions and 581 deletions
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2
NodeFlow/Tool/SereinExpression/Resolver/MemberStringConditionResolver.cs
View File

@@ -39,7 +39,7 @@ namespace Serein.NodeFlow.Tool.SereinExpression.Resolver
return false;
}
private object GetMemberValue(object? obj, string memberPath)
private object? GetMemberValue(object? obj, string memberPath)
{
string[] members = memberPath[1..].Split('.');
foreach (var member in members)

4
NodeFlow/Tool/SereinExpression/SereinConditionParser.cs
View File

@@ -29,7 +29,7 @@ namespace Serein.NodeFlow.Tool.SereinExpression
}
}
public static SereinConditionResolver ConditionParse(object data, string expression)
public static SereinConditionResolver ConditionParse(object? data, string expression)
{
if (expression.StartsWith('.') || expression.StartsWith('<')) // 表达式前缀属于从上一个节点数据对象获取成员值
{
@@ -91,7 +91,7 @@ namespace Serein.NodeFlow.Tool.SereinExpression
/// <summary>
/// 解析对象表达式
/// </summary>
private static SereinConditionResolver ParseObjectExpression(object data, string expression)
private static SereinConditionResolver ParseObjectExpression(object? data, string expression)
{
var parts = expression.Split(' ');
string operatorStr = parts[0]; // 获取操作类型

143
NodeFlow/Tool/SereinExpression/SerinExpressionEvaluator.cs
View File

@@ -41,7 +41,7 @@ namespace Serein.NodeFlow.Tool.SereinExpression
/// <returns></returns>
/// <exception cref="ArgumentException"></exception>
/// <exception cref="NotSupportedException"></exception>
public static object Evaluate(string expression, object targetObJ, out bool isChange)
public static object? Evaluate(string expression, object targetObJ, out bool isChange)
{
var parts = expression.Split([' '], 2);
if (parts.Length != 2)
@@ -84,7 +84,7 @@ namespace Serein.NodeFlow.Tool.SereinExpression
/// <param name="methodCall">方法名称</param>
/// <returns></returns>
/// <exception cref="ArgumentException"></exception>
private static object InvokeMethod(object target, string methodCall)
private static object? InvokeMethod(object target, string methodCall)
{
var methodParts = methodCall.Split(separator, StringSplitOptions.RemoveEmptyEntries);
if (methodParts.Length != 2)
@@ -98,12 +98,7 @@ namespace Serein.NodeFlow.Tool.SereinExpression
.Select(p => p.Trim())
.ToArray();
var method = target.GetType().GetMethod(methodName);
if (method is null)
{
throw new ArgumentException($"Method {methodName} not found on target.");
}
var method = target.GetType().GetMethod(methodName) ?? throw new ArgumentException($"Method {methodName} not found on target.");
var parameterValues = method.GetParameters()
.Select((p, index) => Convert.ChangeType(parameters[index], p.ParameterType))
.ToArray();
@@ -119,15 +114,14 @@ namespace Serein.NodeFlow.Tool.SereinExpression
/// <param name="memberPath">属性路径</param>
/// <returns></returns>
/// <exception cref="ArgumentException"></exception>
private static object GetMember(object target, string memberPath)
private static object? GetMember(object? target, string memberPath)
{
if (target is null) return null;
// 分割成员路径，按 '.' 处理多级访问
var members = memberPath.Split('.');
foreach (var member in members)
{
if (target == null) return null;
// 检查成员是否包含数组索引，例如 "cars[0]"
var arrayIndexStart = member.IndexOf('[');
if (arrayIndexStart != -1)
@@ -148,22 +142,22 @@ namespace Serein.NodeFlow.Tool.SereinExpression
}
// 获取数组或集合对象
var arrayProperty = target.GetType().GetProperty(arrayName);
if (arrayProperty != null)
var arrayProperty = target?.GetType().GetProperty(arrayName);
if (arrayProperty is null)
{
target = arrayProperty.GetValue(target);
}
else
{
var arrayField = target.GetType().GetField(arrayName);
if (arrayField != null)
{
target = arrayField.GetValue(target);
}
else
var arrayField = target?.GetType().GetField(arrayName);
if (arrayField is null)
{
throw new ArgumentException($"Member {arrayName} not found on target.");
}
else
{
target = arrayField.GetValue(target);
}
}
else
{
target = arrayProperty.GetValue(target);
}
// 访问数组或集合中的指定索引
@@ -191,22 +185,22 @@ namespace Serein.NodeFlow.Tool.SereinExpression
else
{
// 处理非数组情况的属性或字段
var property = target.GetType().GetProperty(member);
if (property != null)
var property = target?.GetType().GetProperty(member);
if (property is null)
{
target = property.GetValue(target);
}
else
{
var field = target.GetType().GetField(member);
if (field != null)
{
target = field.GetValue(target);
}
else
var field = target?.GetType().GetField(member);
if (field is null)
{
throw new ArgumentException($"Member {member} not found on target.");
}
else
{
target = field.GetValue(target);
}
}
else
{
target = property.GetValue(target);
}
}
}
@@ -220,7 +214,7 @@ namespace Serein.NodeFlow.Tool.SereinExpression
/// <param name="assignment">属性路径 </param>
/// <returns></returns>
/// <exception cref="ArgumentException"></exception>
private static object SetMember(object target, string assignment)
private static object? SetMember(object? target, string assignment)
{
var parts = assignment.Split(new[] { '=' }, 2);
if (parts.Length != 2)
@@ -238,7 +232,7 @@ namespace Serein.NodeFlow.Tool.SereinExpression
// 检查是否包含数组索引
var arrayIndexStart = member.IndexOf('[');
if (arrayIndexStart != -1)
if (arrayIndexStart != -1)
{
// 解析数组名和索引
var arrayName = member.Substring(0, arrayIndexStart);
@@ -255,24 +249,24 @@ namespace Serein.NodeFlow.Tool.SereinExpression
}
// 获取数组或集合
var arrayProperty = target.GetType().GetProperty(arrayName);
if (arrayProperty != null)
var arrayProperty = target?.GetType().GetProperty(arrayName);
if (arrayProperty is null)
{
target = arrayProperty.GetValue(target);
}
else
{
var arrayField = target.GetType().GetField(arrayName);
if (arrayField != null)
{
target = arrayField.GetValue(target);
}
else
var arrayField = target?.GetType().GetField(arrayName);
if (arrayField is null)
{
throw new ArgumentException($"Member {arrayName} not found on target.");
}
else
{
target = arrayField.GetValue(target);
}
}
else
{
target = arrayProperty.GetValue(target);
}
// 获取目标数组或集合中的指定元素
if (target is Array array)
@@ -299,46 +293,47 @@ namespace Serein.NodeFlow.Tool.SereinExpression
else
{
// 处理非数组情况的属性或字段
var property = target.GetType().GetProperty(member);
if (property != null)
var property = target?.GetType().GetProperty(member);
if (property is null)
{
target = property.GetValue(target);
}
else
{
var field = target.GetType().GetField(member);
if (field != null)
{
target = field.GetValue(target);
}
else
var field = target?.GetType().GetField(member);
if (field is null)
{
throw new ArgumentException($"Member {member} not found on target.");
}
else
{
target = field.GetValue(target);
}
}
else
{
target = property.GetValue(target);
}
}
}
// 设置值
var lastMember = members.Last();
var lastProperty = target.GetType().GetProperty(lastMember);
if (lastProperty != null)
var lastProperty = target?.GetType().GetProperty(lastMember);
if (lastProperty is null)
{
var convertedValue = Convert.ChangeType(value, lastProperty.PropertyType);
lastProperty.SetValue(target, convertedValue);
}
else
{
var lastField = target.GetType().GetField(lastMember);
if (lastField != null)
var lastField = target?.GetType().GetField(lastMember);
if (lastField is null)
{
throw new ArgumentException($"Member {lastMember} not found on target.");
}
else
{
var convertedValue = Convert.ChangeType(value, lastField.FieldType);
lastField.SetValue(target, convertedValue);
}
else
{
throw new ArgumentException($"Member {lastMember} not found on target.");
}
}
else
{
var convertedValue = Convert.ChangeType(value, lastProperty.PropertyType);
lastProperty.SetValue(target, convertedValue);
}
return target;