internal static ReachabilityAnalysis Create(Statement statement, Func <AstNode, CancellationToken, ResolveResult> resolver, CSharpTypeResolveContext typeResolveContext, CancellationToken cancellationToken)
{
var cfgBuilder = new ControlFlowGraphBuilder();
var cfg = cfgBuilder.BuildControlFlowGraph(statement, resolver, typeResolveContext, cancellationToken);
return(Create(cfg, cancellationToken));
}
void InsertAnonymousMethods(int insertPos, AstNode node, ControlFlowGraphBuilder cfgBuilder, CancellationToken cancellationToken)
{
// Ignore any statements, as those have their own ControlFlowNode and get handled separately
if (node is Statement)
{
return;
}
AnonymousMethodExpression ame = node as AnonymousMethodExpression;
if (ame != null)
{
allNodes.InsertRange(insertPos, cfgBuilder.BuildControlFlowGraph(ame.Body, resolver, cancellationToken).Cast <DefiniteAssignmentNode>());
return;
}
LambdaExpression lambda = node as LambdaExpression;
if (lambda != null && lambda.Body is Statement)
{
allNodes.InsertRange(insertPos, cfgBuilder.BuildControlFlowGraph((Statement)lambda.Body, resolver, cancellationToken).Cast <DefiniteAssignmentNode>());
return;
}
// Descend into child expressions
// Iterate backwards so that anonymous methods are inserted in the correct order
for (AstNode child = node.LastChild; child != null; child = child.PrevSibling)
{
InsertAnonymousMethods(insertPos, child, cfgBuilder, cancellationToken);
}
}
public static ReachabilityAnalysis Create(Statement statement, CSharpAstResolver resolver = null, CancellationToken cancellationToken = default(CancellationToken))
{
var cfgBuilder = new ControlFlowGraphBuilder();
var cfg = cfgBuilder.BuildControlFlowGraph(statement, resolver, cancellationToken);
return(Create(cfg, cancellationToken));
}