private void AddToMap(SyntaxNode node, Binder binder)
{
// If this ever breaks, make sure that all callers of
// CanHaveAssociatedLocalBinder are in sync.
Debug.Assert(
node.CanHaveAssociatedLocalBinder() || (node == _root && node is ExpressionSyntax)
);
// Cleverness: for some nodes (e.g. lock), we want to specify a binder flag that
// applies to the embedded statement, but not to the entire node. Since the
// embedded statement may or may not have its own binder, we need a way to ensure
// that the flag is set regardless. We accomplish this by adding a binder for
// the embedded statement immediately, and then overwriting it with one constructed
// in the usual way, if there is such a binder. That's why we're using update,
// rather than add, semantics.
Binder existing;
// Note that a lock statement has two outer binders (a second one for pattern variable scope)
Debug.Assert(
!_map.TryGetValue(node, out existing) ||
existing == binder ||
existing == binder.Next ||
existing == binder.Next?.Next
);
_map[node] = binder;
}
private void AddToMap(SyntaxNode node, Binder binder)
{
// If this ever breaks, make sure that all callers of
// CanHaveAssociatedLocalBinder are in sync.
Debug.Assert(node.CanHaveAssociatedLocalBinder() ||
(node == _root && node is ExpressionSyntax));
// Cleverness: for some nodes (e.g. lock), we want to specify a binder flag that
// applies to the embedded statement, but not to the entire node. Since the
// embedded statement may or may not have its own binder, we need a way to ensure
// that the flag is set regardless. We accomplish this by adding a binder for
// the embedded statement immediately, and then overwriting it with one constructed
// in the usual way, if there is such a binder. That's why we're using update,
// rather than add, semantics.
Binder existing;
// Note that a lock statement has two outer binders (a second one for pattern variable scope)
Debug.Assert(!_map.TryGetValue(node, out existing) || existing == binder || existing == binder.Next || existing == binder.Next?.Next);
_map[node] = binder;
}
