internal override void FinalPass() { // optimization: avoid expression overhead if this isn't really an expression if (_Source == null) { _Expr = new Constant(""); return; } else if (_Source == "" || // empty expression _Source[0] != '=') // if 1st char not '=' { _Expr = new Constant(_Source); // this is a constant value return; } Parser p = new Parser(OwnerReport.DataCache); // find the fields that are part of the DataRegion (if there is one) IDictionary fields=null; ReportLink dr = Parent; Grouping grp= null; // remember if in a table group or detail group or list group Matrix m=null; ReportLink phpf=null; while (dr != null) { if (dr is Grouping) p.NoAggregateFunctions = true; else if (dr is TableGroup) grp = ((TableGroup) dr).Grouping; else if (dr is Matrix) { m = (Matrix) dr; // if matrix we need to pass special break; } else if (dr is Details) { grp = ((Details) dr).Grouping; } else if (dr is List) { grp = ((List) dr).Grouping; break; } else if (dr is PageHeader || dr is PageFooter) { phpf = dr; } else if (dr is DataRegion || dr is DataSetDefn) break; dr = dr.Parent; } if (dr != null) { if (dr is DataSetDefn) { DataSetDefn d = (DataSetDefn) dr; if (d.Fields != null) fields = d.Fields.Items; } else // must be a DataRegion { DataRegion d = (DataRegion) dr; if (d.DataSetDefn != null && d.DataSetDefn.Fields != null) fields = d.DataSetDefn.Fields.Items; } } NameLookup lu = new NameLookup(fields, OwnerReport.LUReportParameters, OwnerReport.LUReportItems,OwnerReport.LUGlobals, OwnerReport.LUUser, OwnerReport.LUAggrScope, grp, m, OwnerReport.CodeModules, OwnerReport.Classes, OwnerReport.DataSetsDefn, OwnerReport.CodeType); if (phpf != null) { // Non-null when expression is in PageHeader or PageFooter; // Expression name needed for dynamic lookup of ReportItems on a page. lu.PageFooterHeader = phpf; lu.ExpressionName = _UniqueName = "xn_" + Interlocked.Increment(ref Parser.Counter).ToString(); } try { _Expr = p.Parse(lu, _Source); } catch (Exception e) { _Expr = new ConstantError(e.Message); // Invalid expression OwnerReport.rl.LogError(8, ErrorText(e.Message)); } // Optimize removing any expression that always result in a constant try { _Expr = _Expr.ConstantOptimization(); } catch(Exception ex) { OwnerReport.rl.LogError(4, "Expression:" + _Source + "\r\nConstant Optimization exception:\r\n" + ex.Message + "\r\nStack trace:\r\n" + ex.StackTrace ); } _Type = _Expr.GetTypeCode(); return; }
internal TypeCode DoParse(Report rpt) { // optimization: avoid expression overhead if this isn't really an expression if (_Source == null) { _Expr = new Constant(""); return _Expr.GetTypeCode(); } else if (_Source == string.Empty || // empty expression _Source[0] != '=') // if 1st char not '=' { _Expr = new Constant(_Source); // this is a constant value return _Expr.GetTypeCode(); } Parser p = new Parser(new System.Collections.Generic.List<ICacheData>()); // find the fields that are part of the DataRegion (if there is one) IDictionary fields=null; ReportLink dr = _rl.Parent; Grouping grp= null; // remember if in a table group or detail group or list group Matrix m=null; while (dr != null) { if (dr is Grouping) p.NoAggregateFunctions = true; else if (dr is TableGroup) grp = ((TableGroup) dr).Grouping; else if (dr is Matrix) { m = (Matrix) dr; // if matrix we need to pass special break; } else if (dr is Details) { grp = ((Details) dr).Grouping; } else if (dr is List) { grp = ((List) dr).Grouping; break; } else if (dr is DataRegion || dr is DataSetDefn) break; dr = dr.Parent; } if (dr != null) { if (dr is DataSetDefn) { DataSetDefn d = (DataSetDefn) dr; if (d.Fields != null) fields = d.Fields.Items; } else // must be a DataRegion { DataRegion d = (DataRegion) dr; if (d.DataSetDefn != null && d.DataSetDefn.Fields != null) fields = d.DataSetDefn.Fields.Items; } } NameLookup lu = new NameLookup(fields, rpt.ReportDefinition.LUReportParameters, rpt.ReportDefinition.LUReportItems, rpt.ReportDefinition.LUGlobals, rpt.ReportDefinition.LUUser, rpt.ReportDefinition.LUAggrScope, grp, m, rpt.ReportDefinition.CodeModules, rpt.ReportDefinition.Classes, rpt.ReportDefinition.DataSetsDefn, rpt.ReportDefinition.CodeType); try { _Expr = p.Parse(lu, _Source); } catch (Exception e) { _Expr = new ConstantError(e.Message); // Invalid expression rpt.rl.LogError(8, ErrorText(e.Message)); } // Optimize removing any expression that always result in a constant try { _Expr = _Expr.ConstantOptimization(); } catch(Exception ex) { rpt.rl.LogError(4, "Expression:" + _Source + "\r\nConstant Optimization exception:\r\n" + ex.Message + "\r\nStack trace:\r\n" + ex.StackTrace ); } return _Expr.GetTypeCode(); }