public static void CalcAssignmentValue(ExpressionSyntax variable, BlockSyntax block, SemanticModel semanticModel, CancellationToken cancellationToken,
RefCounterStatus refCounterStatus)
{
if (InitializeFromCreation(variable))
{
refCounterStatus.IncAssignCounter("initialize from new", variable.GetLocation());
refCounterStatus.AcquireReference("init from new", variable.GetLocation());
}
else if (InitializeFromTypeCastParameter(variable, semanticModel, cancellationToken, out var param))
{
refCounterStatus.IncAssignCounter("init cast from param", variable.GetLocation());
refCounterStatus.RemainRef("init cast from param", variable.GetLocation());
if (RightOfAssignmentUtils.RightSideOfAssignmentCount(param, block, semanticModel, cancellationToken) > 1)
{
refCounterStatus.Skip("cast from param also assigned to others", variable.GetLocation());
}
}
else if (InitializeFromNonGetMethod(variable, semanticModel, cancellationToken))
{
refCounterStatus.IncAssignCounter("initialize from non-get method", variable.GetLocation());
refCounterStatus.AcquireReference("init from non-get method", variable.GetLocation());
}
else if (InitializeFromGetMethod(variable, semanticModel, cancellationToken))
{
refCounterStatus.IncAssignCounter("initialize from get method", variable.GetLocation());
refCounterStatus.RemainRef("init from get method", variable.GetLocation());
}
else if (InitializeFromProperty(variable, semanticModel, cancellationToken))
{
refCounterStatus.IncAssignCounter("initialize from field/property", variable.GetLocation());
refCounterStatus.RemainRef("init from property", variable.GetLocation());
// nothing
}
else if (InitializeFromElement(variable, semanticModel, cancellationToken))
{
refCounterStatus.IncAssignCounter("initialize from element access", variable.GetLocation());
refCounterStatus.RemainRef("init from element access", variable.GetLocation());
}
else // assigned from other local variable, class field, or other expression
{
refCounterStatus.IncAssignCounter("initialize from unkown", variable.GetLocation());
refCounterStatus.Skip("unsupported initialization", variable.GetLocation());
}
}
private static void ProcessLocalOrParamenterVar(SyntaxNodeAnalysisContext context, ISymbol local,
BlockSyntax block, RefCounterStatus status)
{
RightOfAssignmentUtils.ProcessRightSideOfAssignment(local, block, context.SemanticModel,
context.CancellationToken, status);
SystemCollectionUtils.ProcessAddedToCollection(local, block, context.SemanticModel, context.CancellationToken,
status);
LeftOfAssignmentUtils.ProcessLeftSideOfAssignment(local, block, context.SemanticModel,
context.CancellationToken, status);
ChangeReferenceMethodUtils.ProcessIncDelRefInvocation(local, block, context.SemanticModel, context.CancellationToken,
status);
AssignmentUtils.ProcessOutRefInvocation(local, block, context.SemanticModel, context.CancellationToken, status);
ReturnUtils.ProcessReturnStatement(local, block, context.SemanticModel, context.CancellationToken, status);
ReportError(context, local, status);
}
