private Expression TryRegisterSuffixFunc(BinaryExpression node)
{
if (node.NodeType != ExpressionType.Assign)
{
return(null);
}
var left = node.Left as ParameterExpression;
if (left == null)
{
return(null);
}
var right = node.Right as NewExpression;
if (right == null || right.Arguments.Count == 0)
{
return(null);
}
var sfxFuncType = right.Constructor.DeclaringType;
if (typeof(SuffixFunc <>) != sfxFuncType.GetGenericTypeDefinition())
{
return(null);
}
//if ((right.Arguments[0] is LambdaExpression) == false)
// return null;
var funcType = sfxFuncType.GetGenericArguments()[0];
var suffix = ((ConstantExpression)right.Arguments[1]).Value as string[];
var param = Expression.Parameter(funcType, left.Name + "_Body");
var info = new SuffixFuncInfo {
Suffix = suffix, FuncExpr = param
};
_dic[left] = info;
var body = this.Visit(right.Arguments[0]) as LambdaExpression;
if (info.IsUsed)
{
body = Expression.Lambda(body.Body, true, body.Parameters);
}
return(Expression.Assign(left, Expression.New(right.Constructor, Expression.Assign(param, body), right.Arguments[1])));
}
private Expression TryRegisterSuffixFunc(BinaryExpression node)
{
if (node.NodeType != ExpressionType.Assign)
return null;
var left = node.Left as ParameterExpression;
if (left == null)
return null;
var right = node.Right as NewExpression;
if (right == null || right.Arguments.Count == 0)
return null;
var sfxFuncType = right.Constructor.DeclaringType;
if (typeof(SuffixFunc<>) != sfxFuncType.GetGenericTypeDefinition())
return null;
//if ((right.Arguments[0] is LambdaExpression) == false)
// return null;
var funcType = sfxFuncType.GetGenericArguments()[0];
var suffix = ((ConstantExpression)right.Arguments[1]).Value as string[];
var param = Expression.Parameter(funcType, left.Name + "_Body");
var info = new SuffixFuncInfo { Suffix = suffix, FuncExpr = param };
_dic[left] = info;
var body = this.Visit(right.Arguments[0]) as LambdaExpression;
if (info.IsUsed)
body = Expression.Lambda(body.Body, true, body.Parameters);
return Expression.Assign(left, Expression.New(right.Constructor, Expression.Assign(param, body), right.Arguments[1]));
}
