/// <summary>
/// 初始化 <see cref="WhereExpressionVisitor"/> 类的新实例
/// </summary>
/// <param name="ag">表别名解析器</param>
/// <param name="builder">SQL 语句生成器</param>
public WhereExpressionVisitor(AliasGenerator ag, ISqlBuilder builder)
: base(ag, builder)
{
_builder = builder;
_provider = _builder.Provider;
_constor = ((DbQueryProvider)_provider).Constor;
_context = _builder.TranslateContext;
}
/// <summary>
/// 实例化 <see cref="SqlBuilder"/> 类的新实例
/// </summary>
/// <param name="context">解析SQL命令上下文</param>
public SqlBuilder(ITranslateContext context)
{
_context = context;
_innerBuilder = new StringBuilder(128);
var provider = _context.Provider;
_constor = ((DbQueryProvider)provider).Constor;
_escCharLeft = provider.QuotePrefix;
_escCharRight = provider.QuoteSuffix;
_escCharQuote = provider.SingleQuoteChar;
}
