/// <summary> /// Clones this <see cref="QueryModel"/>, returning a new <see cref="QueryModel"/> equivalent to this instance, but with its clauses being /// clones of this instance's clauses. Any <see cref="QuerySourceReferenceExpression"/> in the cloned clauses that points back to another clause /// in this <see cref="QueryModel"/> (including its subqueries) is adjusted to point to the respective clones in the cloned /// <see cref="QueryModel"/>. Any subquery nested in the <see cref="QueryModel"/> is also cloned. /// </summary> /// <param name="querySourceMapping">The <see cref="QuerySourceMapping"/> defining how to adjust instances of /// <see cref="QuerySourceReferenceExpression"/> in the cloned <see cref="QueryModel"/>. If there is a <see cref="QuerySourceReferenceExpression"/> /// that points out of the <see cref="QueryModel"/> being cloned, specify its replacement via this parameter. At the end of the cloning process, /// this object maps all the clauses in this original <see cref="QueryModel"/> to the clones created in the process. /// </param> public QueryModel Clone(QuerySourceMapping querySourceMapping) { ArgumentUtility.CheckNotNull("querySourceMapping", querySourceMapping); var cloneContext = new CloneContext(querySourceMapping); var queryModelBuilder = new QueryModelBuilder(); queryModelBuilder.AddClause(MainFromClause.Clone(cloneContext)); foreach (var bodyClause in BodyClauses) { queryModelBuilder.AddClause(bodyClause.Clone(cloneContext)); } queryModelBuilder.AddClause(SelectClause.Clone(cloneContext)); foreach (var resultOperator in ResultOperators) { var resultOperatorClone = resultOperator.Clone(cloneContext); queryModelBuilder.AddResultOperator(resultOperatorClone); } var clone = queryModelBuilder.Build(); clone.TransformExpressions(ex => CloningExpressionTreeVisitor.AdjustExpressionAfterCloning(ex, cloneContext.QuerySourceMapping)); clone.ResultTypeOverride = ResultTypeOverride; return(clone); }
public void TypeOfSequence() { var qmb = new QueryModelBuilder(); qmb.AddClause(new SelectClause(Expression.Constant(1.0))); int[] list = new int[10]; qmb.AddClause(new MainFromClause("r1", typeof(int), Expression.Constant(list))); var h = new QMFuncHeader() { Arguments = new object[] { }, IsSequence = true, QM = qmb.Build(), QMText = "hi" }; var src = new QMFuncSource(h); Assert.AreEqual(typeof(double[]), src.ResultType, "result type"); Assert.AreEqual(typeof(double[]), src.CacheVariable.Type, "Type of cache"); Assert.AreEqual(typeof(bool), src.CacheVariableGood.Type, "Type of the cache good flag"); }
/// <summary> /// Generate a function with no arguments that returns an int given that name. The /// actual statement is a very simple constant. /// </summary> /// <param name="fname"></param> /// <returns></returns> public static QMFuncSource GenerateFunction() { int[] ints = new int[10]; var qmb = new QueryModelBuilder(); qmb.AddClause(new MainFromClause("i", typeof(int), Expression.Constant(ints))); qmb.AddClause(new SelectClause(Expression.Constant(1))); qmb.AddResultOperator(new Remotion.Linq.Clauses.ResultOperators.CountResultOperator()); var h = new QMFuncHeader() { Arguments = new object[] { }, QM = qmb.Build() }; h.QMText = h.QM.ToString(); var f = new QMFuncSource(h); var p = DeclarableParameter.CreateDeclarableParameterExpression(typeof(int)); var st = new StatementAssign(p, new ValSimple("5", typeof(int))); var inlineblock = new StatementInlineBlock(); inlineblock.Add(st); inlineblock.Add(new StatementReturn(p)); f.SetCodeBody(inlineblock); return f; }
/// <summary> /// Clones this <see cref="QueryModel"/>, returning a new <see cref="QueryModel"/> equivalent to this instance, but with its clauses being /// clones of this instance's clauses. Any <see cref="QuerySourceReferenceExpression"/> in the cloned clauses that points back to another clause /// in this <see cref="QueryModel"/> (including its subqueries) is adjusted to point to the respective clones in the cloned /// <see cref="QueryModel"/>. Any subquery nested in the <see cref="QueryModel"/> is also cloned. /// </summary> /// <param name="querySourceMapping">The <see cref="QuerySourceMapping"/> defining how to adjust instances of /// <see cref="QuerySourceReferenceExpression"/> in the cloned <see cref="QueryModel"/>. If there is a <see cref="QuerySourceReferenceExpression"/> /// that points out of the <see cref="QueryModel"/> being cloned, specify its replacement via this parameter. At the end of the cloning process, /// this object maps all the clauses in this original <see cref="QueryModel"/> to the clones created in the process. /// </param> public QueryModel Clone (QuerySourceMapping querySourceMapping) { ArgumentUtility.CheckNotNull ("querySourceMapping", querySourceMapping); var cloneContext = new CloneContext (querySourceMapping); var queryModelBuilder = new QueryModelBuilder(); queryModelBuilder.AddClause (MainFromClause.Clone (cloneContext)); foreach (var bodyClause in BodyClauses) queryModelBuilder.AddClause (bodyClause.Clone (cloneContext)); queryModelBuilder.AddClause (SelectClause.Clone (cloneContext)); foreach (var resultOperator in ResultOperators) { var resultOperatorClone = resultOperator.Clone (cloneContext); queryModelBuilder.AddResultOperator (resultOperatorClone); } var clone = queryModelBuilder.Build (); clone.TransformExpressions (ex => CloningExpressionTreeVisitor.AdjustExpressionAfterCloning (ex, cloneContext.QuerySourceMapping)); clone.ResultTypeOverride = ResultTypeOverride; return clone; }