56 lines
2.0 KiB
C#
56 lines
2.0 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq.Expressions;
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namespace DDD
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{
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public static class BindingPath
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{
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public static string For<TViewModel, TProp>(Expression<Func<TViewModel, TProp>> expression)
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{
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if (expression == null) throw new ArgumentNullException(nameof(expression));
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Expression expr = expression.Body;
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// 값형식 → object 캐스팅 제거
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if (expr is UnaryExpression unary && unary.NodeType == ExpressionType.Convert)
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{
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expr = unary.Operand;
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}
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var members = new Stack<string>();
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while (expr is MemberExpression me)
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{
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members.Push(me.Member.Name);
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expr = me.Expression;
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if (expr is ParameterExpression) break; // 루트 도달
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if (expr is UnaryExpression innerUnary && innerUnary.NodeType == ExpressionType.Convert)
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expr = innerUnary.Operand;
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}
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return string.Join(".", members);
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}
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// 편의용: object 리턴 시그니처도 지원
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public static string For<TViewModel>(Expression<Func<TViewModel, object>> expression)
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{
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if (expression == null) throw new ArgumentNullException(nameof(expression));
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Expression expr = expression.Body;
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if (expr is UnaryExpression unary && unary.NodeType == ExpressionType.Convert)
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expr = unary.Operand;
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var members = new Stack<string>();
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while (expr is MemberExpression me)
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{
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members.Push(me.Member.Name);
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expr = me.Expression;
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if (expr is ParameterExpression) break;
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if (expr is UnaryExpression innerUnary && innerUnary.NodeType == ExpressionType.Convert)
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expr = innerUnary.Operand;
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}
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return string.Join(".", members);
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}
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}
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}
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