go/src/cmd/compile/internal/dwarfgen/marker.go

type ScopeMarker …

// checkPos validates the given position and returns the current scope.
func (m *ScopeMarker) checkPos(pos src.XPos) ir.ScopeID { … }

// Push records a transition to a new child scope of the current scope.
func (m *ScopeMarker) Push(pos src.XPos) { … }

// Pop records a transition back to the current scope's parent.
func (m *ScopeMarker) Pop(pos src.XPos) { … }

// Unpush removes the current scope, which must be empty.
func (m *ScopeMarker) Unpush() { … }

// WriteTo writes the recorded scope marks to the given function,
// and resets the marker for reuse.
func (m *ScopeMarker) WriteTo(fn *ir.Func) { … }

func (m *ScopeMarker) compactMarks() { … }