/// <summary>
/// Returns alias name from <paramref name="aliasedExpr" /> ast node if it contains an alias,
/// otherwise creates a new alias name based on the <paramref name="aliasedExpr" />.Expr or
/// <paramref
/// name="convertedExpression" />
/// information.
/// </summary>
internal string InferAliasName(AliasedExpr aliasedExpr, DbExpression convertedExpression)
{
if (aliasedExpr.Alias != null)
{
return(aliasedExpr.Alias.Name);
}
var id = aliasedExpr.Expr as Identifier;
if (null != id)
{
return(id.Name);
}
var dotExpr = aliasedExpr.Expr as DotExpr;
string[] names;
if (null != dotExpr &&
dotExpr.IsMultipartIdentifier(out names))
{
return(names[names.Length - 1]);
}
return(CreateNewAlias(convertedExpression));
}
internal string InferAliasName(AliasedExpr aliasedExpr, DbExpression convertedExpression)
{
if (aliasedExpr.Alias != null)
{
return(aliasedExpr.Alias.Name);
}
Identifier expr1 = aliasedExpr.Expr as Identifier;
if (expr1 != null)
{
return(expr1.Name);
}
DotExpr expr2 = aliasedExpr.Expr as DotExpr;
string[] names;
if (expr2 != null && expr2.IsMultipartIdentifier(out names))
{
return(names[names.Length - 1]);
}
return(this.CreateNewAlias(convertedExpression));
}
/// <summary>
/// Initializes as 'simple' aliased expression.
/// </summary>
internal FromClauseItem(AliasedExpr aliasExpr)
{
_fromClauseItemExpr = aliasExpr;
_fromClauseItemKind = FromClauseItemKind.AliasedFromClause;
}
internal FromClauseItem(AliasedExpr aliasExpr)
{
this._fromClauseItemExpr = (Node)aliasExpr;
this._fromClauseItemKind = FromClauseItemKind.AliasedFromClause;
}
// <summary>
// Initializes as 'simple' aliased expression.
// </summary>
internal FromClauseItem(AliasedExpr aliasExpr)
{
_fromClauseItemExpr = aliasExpr;
_fromClauseItemKind = FromClauseItemKind.AliasedFromClause;
}
