/// <summary>
/// 实例化 <see cref="MethodCallExpressionVisitor"/> 类的新实例
/// </summary>
/// <param name="provider">查询语义提供者</param>
/// <param name="visitor">表达式访问器</param>
public MethodCallExpressionVisitor(IDbQueryProvider provider, ExpressionVisitorBase visitor)
{
_provider = provider;
_visitor = visitor;
_builder = visitor.SqlBuilder;
_visitedStack = _visitor.VisitedStack;
_dbValue = _provider.DbValue;
}
/// <summary>
/// 实例化 <see cref="SqlBuilder"/> 类的新实例
/// </summary>
/// <param name="provider">查询语义提供者</param>
/// <param name="token">解析上下文参数</param>
public SqlBuilder(IDbQueryProvider provider, ResolveToken token)
{
_provider = provider;
_dbValue = provider.DbValue;
_token = token;
_innerBuilder = new StringBuilder(128);
_escCharLeft = _provider.QuotePrefix;
_escCharRight = _provider.QuoteSuffix;
_escCharQuote = _provider.SingleQuoteChar;
}