private Token ParseMethodCallExpression(MethodCallExpression methodCallExpression)
{
var visitor1 = new MethodCallExpressionVisitor(Context);
visitor1.Visit(methodCallExpression);
return(visitor1.Token);
}
protected override Expression VisitMethodCall(MethodCallExpression node)
{
var visitor = new MethodCallExpressionVisitor(Context);
visitor.Visit(node);
Token = visitor.Token;
return(node);
}
protected override Expression VisitMethodCall(MethodCallExpression node)
{
var visitor = new MethodCallExpressionVisitor(Context);
visitor.Visit(node);
var type = visitor.Token.Type;
if (type != TokenType.Column)
{
if (type == TokenType.Condition)
{
throw new Exception();
}
var obj2 = visitor.Token.Object;
while (_memberInfos.Count > 0)
{
obj2 = GetValue((MemberExpression)_memberInfos.Pop(), obj2);
}
Token = Token.Create(obj2);
return(node);
}
Token = visitor.Token;
var column = Token.Column;
while (_memberInfos.Count > 0)
{
var expression = _memberInfos.Pop();
if (expression.NodeType != ExpressionType.MemberAccess)
{
throw new Exception();
}
var member = ((MemberExpression)expression).Member;
column.Converters.Push(new ColumnConverter(member, new List <object>()));
}
return(node);
}
private Token ParseNotExpression(UnaryExpression unaryExpression)
{
var operand = unaryExpression.Operand;
if (operand is MemberExpression)
{
var visitor = new MemberExpressionVisitor(Context);
visitor.Visit(operand);
var type = visitor.Token.Type;
if (type != TokenType.Column)
{
if (type != TokenType.Object)
{
throw new Exception();
}
if (!visitor.Token.IsBool())
{
throw new Exception("不支持");
}
return(Token.Create(!(bool)visitor.Token.Object));
}
if ((operand.Type == typeof(bool)) || (operand.Type == typeof(bool?)))
{
var condition1 = new Condition
{
CompareType = CompareType.Equal,
Left = Token.Create(1),
Right = Token.Create(1)
};
return(Token.Create(condition1));
}
var condition2 = new Condition
{
Left = visitor.Token,
CompareType = CompareType.Not
};
return(Token.Create(condition2));
}
if (!(operand is MethodCallExpression))
{
throw new Exception("不支持");
}
var visitor1 = new MethodCallExpressionVisitor(Context);
visitor1.Visit(operand);
var token = visitor1.Token;
switch (token.Type)
{
case TokenType.Column:
{
var condition3 = new Condition
{
Left = token,
CompareType = CompareType.Not
};
return(Token.Create(condition3));
}
case TokenType.Object:
return(Token.Create(!(bool)token.Object));
case TokenType.Condition:
{
var condition4 = new Condition
{
Left = Token.Create(token.Condition),
CompareType = CompareType.Not
};
return(Token.Create(condition4));
}
}
throw new Exception();
}