gotools/gopls/internal/golang/call_hierarchy.go

// PrepareCallHierarchy returns an array of CallHierarchyItem for a file and the position within the file.
func PrepareCallHierarchy(ctx context.Context, snapshot *cache.Snapshot, fh file.Handle, pp protocol.Position) ([]protocol.CallHierarchyItem, error) { … }

// IncomingCalls returns an array of CallHierarchyIncomingCall for a file and the position within the file.
func IncomingCalls(ctx context.Context, snapshot *cache.Snapshot, fh file.Handle, pos protocol.Position) ([]protocol.CallHierarchyIncomingCall, error) { … }

// enclosingNodeCallItem creates a CallHierarchyItem representing the function call at loc.
func enclosingNodeCallItem(ctx context.Context, snapshot *cache.Snapshot, pkgPath PackagePath, loc protocol.Location) (protocol.CallHierarchyItem, error) { … }

// OutgoingCalls returns an array of CallHierarchyOutgoingCall for a file and the position within the file.
func OutgoingCalls(ctx context.Context, snapshot *cache.Snapshot, fh file.Handle, pp protocol.Position) ([]protocol.CallHierarchyOutgoingCall, error) { … }