slang::ast::HierarchicalReference class
#include </home/runner/work/slang/slang/include/slang/ast/HierarchicalReference.h>

Represents a hierarchical reference to a symbol.

Public types

static auto fromLookup(Compilation& compilation, const LookupResult& result) -> HierarchicalReference: Constructs a HierarchicalReference from a lookup result.

auto isViaIfacePort() const -> bool: Returns true if the hierarchical reference was resolved via an interface port connection.
auto isUpward() const -> bool: Returns true if the hierarchical reference traverses upward through the hierarchy.
auto retargetIfacePort(const InstanceSymbol& base) const -> const Symbol*: Re-resolves the target symbol starting from the corresponding port in the new base instance and following the same path as the original reference.
auto join(Compilation& compilation, const HierarchicalReference& other) const -> const HierarchicalReference&: Returns a new HierarchicalReference that represents the joined path of this reference and another.

const Symbol* target: The target symbol of the hierarchical reference.
const Expression* expr: The expression that was used to start the lookup, typically a HierarchicalValueExpression.
std::span<const Element> path: The resolved path to the target symbol.
size_t upwardCount: The number of times the path traverses upward before going back down the hierarchy to reach the target symbol.

Re-resolves the target symbol starting from the corresponding port in the new base instance and following the same path as the original reference.

Returns	the resolved symbol, or nullptr if the path could not be followed or this reference does not resolve through an interface port.