protected virtual bool EvalNotExpression(object item, NPathNotExpression notExpression) { return(!EvalExpression(item, notExpression.Expression)); }
protected virtual void EmitNot(NPathNotExpression notExpression) { Write("(not "); // do not localize EmitExpression(notExpression.Expression); Write(")"); }
protected virtual void EmitExpression(IValue expression) { if (expression is NPathNotExpression) { NPathNotExpression value = (NPathNotExpression)expression; EmitNot(value); } if (expression is NPathFunction) { NPathFunction value = (NPathFunction)expression; EmitFunction(value); } if (expression is NPathParameter) { NPathParameter value = (NPathParameter)expression; EmitParameter(value); } if (expression is NPathNullValue) { NPathNullValue value = (NPathNullValue)expression; EmitNullValue(value); } if (expression is NPathBetweenExpression) { NPathBetweenExpression value = (NPathBetweenExpression)expression; EmitBetween(value); } if (expression is NPathBooleanValue) { NPathBooleanValue value = (NPathBooleanValue)expression; EmitBooleanValue(value); } if (expression is NPathDecimalValue) { NPathDecimalValue value = (NPathDecimalValue)expression; EmitDecimalValue(value); } if (expression is NPathDateTimeValue) { NPathDateTimeValue value = (NPathDateTimeValue)expression; EmitDateTimeValue(value); } if (expression is NPathGuidValue) { NPathGuidValue value = (NPathGuidValue)expression; EmitGuidValue(value); } if (expression is NPathStringValue) { NPathStringValue value = (NPathStringValue)expression; EmitStringValue(value); } if (expression is NPathIdentifier) { NPathIdentifier propertyPath = (NPathIdentifier)expression; EmitPropertyPath(propertyPath); } if (expression is NPathPropertyFilter) { NPathPropertyFilter propertyFilter = (NPathPropertyFilter)expression; EmitPropertyFilter(propertyFilter); } if (expression is NPathParenthesisGroup) { NPathParenthesisGroup parenthesisGroup = (NPathParenthesisGroup)expression; EmitParenthesisGroup(parenthesisGroup); } if (expression is NPathMathExpression) { NPathMathExpression mathExpression = (NPathMathExpression)expression; EmitMathExpression(mathExpression); } if (expression is NPathCompareExpression) { NPathCompareExpression compareExpression = (NPathCompareExpression)expression; EmitCompareExpression(compareExpression); } if (expression is NPathBooleanExpression) { NPathBooleanExpression boolExpression = (NPathBooleanExpression)expression; EmitBooleanExpression(boolExpression); } if (expression is NPathInExpression) { NPathInExpression value = (NPathInExpression)expression; EmitIn(value); } if (expression is NPathSearchFunction) { NPathSearchFunction value = (NPathSearchFunction)expression; EmitSearchFunction(value); } }
private IValue ParseExpression() { if (tokenizer.GetCurrentToken().IsType("not")) { tokenizer.MoveNext(); // move past not NPathNotExpression not = new NPathNotExpression(); not.Expression = ParseExpression(); return(not); } if (CurrentIsValue()) { IValue operand = ParseValue(); IValue expression = null; if (tokenizer.GetCurrentToken().IsType("between")) { expression = ParseBetweenExpression(operand); return(expression); } if (tokenizer.GetCurrentToken().IsType("in")) { expression = ParseInExpression(operand); return(expression); } if (tokenizer.GetCurrentToken().IsType("math") || tokenizer.GetCurrentToken().IsType("compare") /* || * tokenizer.GetCurrentToken().IsType("boolop")*/) { expression = ParseOperator(operand); return(expression); } if (tokenizer.GetCurrentToken().IsType(")")) { expression = operand; return(expression); } if (tokenizer.GetCurrentToken().IsType("as")) { expression = operand; return(expression); } if (tokenizer.GetCurrentToken().IsType("]")) { expression = operand; return(expression); } if (tokenizer.GetCurrentToken().IsType("direction")) { expression = operand; return(expression); } return(operand); } throw GetUnknownTokenException(); }