public void Test_can_parse_binary_expression_for_two_parenthesized_expressions()
{
CmsqlParser cmsqlParser =
CmsqlParserFactory.CreateParserForQuery(
"(jon != 'stark' and john = 'snow') or (arya = 'stark' and sansa = 'stark')");
CmsqlParser.BinaryExpressionContext parseTree =
(CmsqlParser.BinaryExpressionContext)cmsqlParser.expression();
ExpressionVisitor visitor = new ExpressionVisitor();
CmsqlQueryBinaryExpression binaryExpression = (CmsqlQueryBinaryExpression)visitor.VisitBinaryExpression(parseTree);
binaryExpression.LeftExpression.Should().BeOfType <CmsqlQueryBinaryExpression>();
binaryExpression.LeftExpression.Should().NotBeNull();
binaryExpression.RightExpression.Should().BeOfType <CmsqlQueryBinaryExpression>();
binaryExpression.RightExpression.Should().NotBeNull();
CmsqlQueryBinaryExpression leftParenthesizedBinaryExpression = (CmsqlQueryBinaryExpression)binaryExpression.LeftExpression;
leftParenthesizedBinaryExpression.LeftExpression.Should().BeOfType <CmsqlQueryCondition>();
leftParenthesizedBinaryExpression.LeftExpression.Should().NotBeNull();
leftParenthesizedBinaryExpression.RightExpression.Should().BeOfType <CmsqlQueryCondition>();
leftParenthesizedBinaryExpression.RightExpression.Should().NotBeNull();
CmsqlQueryBinaryExpression rightParenthesizedBinaryExpression = (CmsqlQueryBinaryExpression)binaryExpression.RightExpression;
rightParenthesizedBinaryExpression.LeftExpression.Should().BeOfType <CmsqlQueryCondition>();
rightParenthesizedBinaryExpression.LeftExpression.Should().NotBeNull();
rightParenthesizedBinaryExpression.RightExpression.Should().BeOfType <CmsqlQueryCondition>();
rightParenthesizedBinaryExpression.RightExpression.Should().NotBeNull();
}
public override ICmsqlQueryExpression VisitBinaryExpression(CmsqlParser.BinaryExpressionContext context)
{
ExpressionVisitor expressionVisitor = new ExpressionVisitor();
return(new CmsqlQueryBinaryExpression
{
Operator = GetConditionalOperator(context.op.Type),
LeftExpression = context.left.Accept(expressionVisitor),
RightExpression = context.right.Accept(expressionVisitor)
});
}
public void Test_can_parse_binary_expression_containing_parenthesized_expression_and_condition_expression(string queryExpression)
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery(queryExpression);
CmsqlParser.BinaryExpressionContext parseTree =
(CmsqlParser.BinaryExpressionContext)cmsqlParser.expression();
ExpressionVisitor visitor = new ExpressionVisitor();
CmsqlQueryBinaryExpression binaryExpression = (CmsqlQueryBinaryExpression)visitor.VisitBinaryExpression(parseTree);
binaryExpression.LeftExpression.Should().BeOfType <CmsqlQueryCondition>();
binaryExpression.LeftExpression.Should().NotBeNull();
binaryExpression.RightExpression.Should().BeOfType <CmsqlQueryCondition>();
binaryExpression.RightExpression.Should().NotBeNull();
}
public void Test_can_binary_expression_containing_two_condition_expressions()
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery("foo != 'bar' and bar = 'foo'");
CmsqlParser.BinaryExpressionContext parseTree =
(CmsqlParser.BinaryExpressionContext)cmsqlParser.expression();
ExpressionVisitor visitor = new ExpressionVisitor();
CmsqlQueryBinaryExpression binaryExpression = (CmsqlQueryBinaryExpression)visitor.VisitBinaryExpression(parseTree);
binaryExpression.LeftExpression.Should().BeOfType <CmsqlQueryCondition>();
binaryExpression.LeftExpression.Should().NotBeNull();
binaryExpression.RightExpression.Should().BeOfType <CmsqlQueryCondition>();
binaryExpression.RightExpression.Should().NotBeNull();
}
