public Expression Analyze(ExpressionChain expressionChain, Expression parameter, TranslationContext context)
{
Expression resultExpression = parameter;
Expression last = expressionChain.Last();
foreach (Expression expr in expressionChain)
{
if (expr == last)
context.IsExternalInExpressionChain = true;
resultExpression = this.Analyze(expr, resultExpression, context);
}
return resultExpression;
}
/// <summary>
/// Builds the ExpressionQuery main Expression, given a Table (or projection) expression
/// </summary>
/// <param name="expressions"></param>
/// <param name="tableExpression"></param>
/// <param name="builderContext"></param>
/// <returns></returns>
protected Expression BuildExpressionQuery(ExpressionChain expressions, Expression tableExpression, BuilderContext builderContext)
{
var last = expressions.Last();
foreach (var expression in expressions)
{
if (expression == last)
builderContext.IsExternalInExpressionChain = true;
builderContext.QueryContext.DataContext.Logger.WriteExpression(Level.Debug, expression);
// Convert linq Expressions to QueryOperationExpressions and QueryConstantExpressions
// Query expressions language identification
var currentExpression = ExpressionLanguageParser.Parse(expression, builderContext);
// Query expressions query identification
currentExpression = ExpressionDispatcher.Analyze(currentExpression, tableExpression, builderContext);
tableExpression = currentExpression;
}
ExpressionDispatcher.BuildSelect(tableExpression, builderContext);
return tableExpression;
}
