/// <summary>
/// Expand given statements int program point base chain
/// </summary>
/// <param name="statements">Statements to expand</param>
/// <returns>Program points created from statements expanding</returns>
private List <ProgramPointBase> expandStatements(IEnumerable <LangElement> statements)
{
var points = new List <ProgramPointBase>();
ProgramPointBase lastPoint = null;
foreach (var statement in statements)
{
var expanded = ElementExpander.ExpandStatement(statement, reportCreation);
if (lastPoint != null)
{
//connect before expanded points
lastPoint.AddFlowChild(expanded[0]);
}
lastPoint = expanded[expanded.Length - 1];
points.AddRange(expanded);
}
return(points);
}
/// <summary>
/// Creates points block from given expression
/// <remarks>It's supposed to be used as parent for assume block</remarks>
/// </summary>
/// <param name="expression">Expression which points block will be created</param>
/// <returns>Created points block</returns>
internal PointsBlock CreateFromExpression(Expression expression)
{
PointsBlock createdBlock;
if (_creadtedExpressionBlocks.TryGetValue(expression, out createdBlock))
{
return(createdBlock);
}
var points = ElementExpander.ExpandStatement(expression, reportCreation);
if (points.Any())
{
createdBlock = PointsBlock.ForExpression(points);
_creadtedExpressionBlocks.Add(expression, createdBlock);
_createdBlocks.Add(createdBlock);
return(createdBlock);
}
else
{
throw new NotSupportedException("Empty expression is not supported");
}
}