/// <summary>
/// 获取二元表达式
/// </summary>
/// <param name="type">表达式类型</param>
/// <param name="left">左表达式</param>
/// <param name="right">右表达式</param>
/// <param name="method">运算符重载函数</param>
/// <returns>二元表达式</returns>
internal static TmphBinaryExpression Get(TmphExpressionType type, TmphExpression left, TmphExpression right,
MethodInfo method)
{
var expression = TmphTypePool<TmphBinaryExpression>.Pop() ?? new TmphBinaryExpression();
expression.NodeType = type;
expression.Method = method;
++(expression.Left = left.SimpleExpression).ExpressionCount;
++(expression.Right = right.SimpleExpression).ExpressionCount;
return expression;
}
/// <summary>
/// 一元表达式
/// </summary>
/// <param name="type">表达式类型</param>
/// <param name="expression">表达式</param>
/// <param name="method">运算符重载函数</param>
protected void set(TmphExpressionType type, TmphExpression expression, MethodInfo method)
{
NodeType = type;
Method = method;
++(Expression = expression.SimpleExpression).ExpressionCount;
}
/// <summary>
/// 获取一元表达式
/// </summary>
/// <param name="type">表达式类型</param>
/// <param name="expression">表达式</param>
/// <param name="method">运算符重载函数</param>
/// <returns>一元表达式</returns>
internal static TmphUnaryExpression Get(TmphExpressionType type, TmphExpression expression, MethodInfo method)
{
var unaryExpression = TmphTypePool<TmphUnaryExpression>.Pop() ?? new TmphUnaryExpression();
unaryExpression.set(type, expression, method);
return unaryExpression;
}
/// <summary>
/// 获取常量转换处理函数
/// </summary>
/// <param name="type">数据类型</param>
/// <returns>失败返回null</returns>
public Action<TmphConverter, TmphExpression> this[TmphExpressionType type]
{
get { return converters[(int)type]; }
}
