/// <summary>
/// Returns all cached method summaries for the specified call.
/// </summary>
/// <param name="call">ExpressionSyntax</param>
/// <param name="node">IDataFlowNode</param>
/// <returns>MethodSummarys</returns>
private static ISet <MethodSummary> ResolveMethodSummaries(ExpressionSyntax call, IDataFlowNode node)
{
var summaries = new HashSet <MethodSummary>();
var invocation = call as InvocationExpressionSyntax;
var objCreation = call as ObjectCreationExpressionSyntax;
var callSymbol = node.Summary.SemanticModel.GetSymbolInfo(call).Symbol;
if (callSymbol == null ||
(invocation == null && objCreation == null))
{
return(summaries);
}
if (node.MethodSummaryCache.ContainsKey(callSymbol))
{
summaries.UnionWith(node.MethodSummaryCache[callSymbol]);
}
else if (invocation != null)
{
var parameterTypes = MethodSummaryResolver.GetCandidateParameterTypes(
invocation.ArgumentList, node);
var candidateCalleeDeclarations = MethodSummaryResolver.
ResolveCandidateMethodsAtCallSite(invocation, node);
foreach (var candidateCalleeDeclaration in candidateCalleeDeclarations)
{
var calleeSummary = MethodSummary.Create(node.Summary.AnalysisContext,
candidateCalleeDeclaration, parameterTypes);
if (calleeSummary != null)
{
summaries.Add(calleeSummary);
}
}
}
else
{
var parameterTypes = MethodSummaryResolver.GetCandidateParameterTypes(
objCreation.ArgumentList, node);
var constructor = MethodSummaryResolver.ResolveMethodDeclaration(
objCreation, node) as ConstructorDeclarationSyntax;
if (constructor != null)
{
var calleeSummary = MethodSummary.Create(node.Summary.AnalysisContext,
constructor, parameterTypes);
if (calleeSummary != null)
{
summaries.Add(calleeSummary);
}
}
}
return(summaries);
}
