internal static WBooleanExpression ConcatBooleanExpressionList(List <WBooleanExpression> booleanExprList,
BooleanBinaryExpressionType type)
{
if (booleanExprList.Count == 1)
{
return(booleanExprList.First());
}
WBooleanExpression concatExpr = null;
foreach (var booleanExpr in booleanExprList)
{
if (booleanExpr == null)
{
continue;
}
WBooleanExpression newExpr = type == BooleanBinaryExpressionType.Or
? GetBooleanParenthesisExpr(booleanExpr)
: booleanExpr;
concatExpr = concatExpr == null ? booleanExpr
: GetBooleanBinaryExpr(concatExpr, newExpr, type);
}
if (concatExpr == null)
{
return(null);
}
if (type == BooleanBinaryExpressionType.Or)
{
return(GetBooleanParenthesisExpr(concatExpr));
}
return(concatExpr);
}
private static cs.CodeBinaryOperatorType ConvertToBinaryOperatorType(BooleanBinaryExpressionType binaryExpressionType)
{
if (binaryExpressionType == BooleanBinaryExpressionType.Or)
{
return(cs.CodeBinaryOperatorType.BooleanOr);
}
if (binaryExpressionType == BooleanBinaryExpressionType.And)
{
return(cs.CodeBinaryOperatorType.BooleanAnd);
}
throw new NotImplementedException("" + binaryExpressionType);
}
public static string BooleanExpressionType(BooleanBinaryExpressionType btype)
{
switch (btype)
{
case Microsoft.SqlServer.TransactSql.ScriptDom.BooleanBinaryExpressionType.And:
return("AND");
case Microsoft.SqlServer.TransactSql.ScriptDom.BooleanBinaryExpressionType.Or:
return("OR");
default:
throw new GraphViewException("Invalid boolean expression type");
}
}
public static string BooleanExpressionType(BooleanBinaryExpressionType btype)
{
switch (btype)
{
case BooleanBinaryExpressionType.And:
return("AND");
case BooleanBinaryExpressionType.Or:
return("OR");
default:
throw new GraphViewException("Invalid boolean expression type");
}
}
public void WhereConjunction(WBooleanExpression condition, BooleanBinaryExpressionType conjunction)
{
Debug.Assert(condition != null);
if (this.RawWhereClause == null)
{
this.RawWhereClause = condition;
return;
}
this.RawWhereClause = new WBooleanBinaryExpression
{
FirstExpr = new WBooleanParenthesisExpression
{
Expression = this.RawWhereClause
},
SecondExpr = new WBooleanParenthesisExpression
{
Expression = condition
},
BooleanExpressionType = conjunction
};
}
internal static WBooleanBinaryExpression GetBooleanBinaryExpr(WBooleanExpression firstExpr,
WBooleanExpression secondExpr, BooleanBinaryExpressionType type)
{
return(new WBooleanBinaryExpression()
{
BooleanExpressionType = type,
FirstExpr = firstExpr,
SecondExpr = secondExpr
});
}
// TODO: emulate sql server short-circuit behavior (may be version specific)
public static bool Evaluate(BooleanBinaryExpressionType op, bool left, bool right) =>
op switch
{
public static string BooleanExpressionType(BooleanBinaryExpressionType btype)
{
switch (btype)
{
case Microsoft.SqlServer.TransactSql.ScriptDom.BooleanBinaryExpressionType.And:
return "AND";
case Microsoft.SqlServer.TransactSql.ScriptDom.BooleanBinaryExpressionType.Or:
return "OR";
default:
throw new GraphViewException("Invalid boolean expression type");
}
}
