Name a fresh hold set's two spellings, eager and lazy

holdset.go

@@ -19,15 +19,19 @@ type renderScope struct {
 	row   int
 }
 
-// newHoldSet makes the unnamed group's maps where the set is declared, keeping them on that frame's
-// stack for a render that reads through them; a zero holdSet makes them on its first read instead.
-func newHoldSet(s *session) holdSet {
+// eagerHoldSet makes the unnamed group's maps where the set is declared, keeping them on that frame's
+// stack for a render that reads through them; lazyHoldSet makes them on its first read instead.
+func eagerHoldSet(s *session) holdSet {
 	return holdSet{unnamed: hold{variant: map[string]node{}, value: map[string]draw{}, s: s}}
 }
 
+func lazyHoldSet(s *session) holdSet {
+	return holdSet{unnamed: hold{s: s}}
+}
+
 // renderOnce renders n as one render, over a hold set of its own.
 func renderOnce(s *session, n node) string {
-	set := holdSet{unnamed: hold{s: s}}
+	set := lazyHoldSet(s)
 	return render(s, n, renderScope{set: &set})
 }
 

record.go

@@ -130,7 +130,7 @@ func (f *Generator) FakeRecord(path string) (*Record, error) {
 	if err != nil {
 		return nil, fmt.Errorf("fejkdata: %s: %w", path, err)
 	}
-	set := newHoldSet(f.rand)
+	set := eagerHoldSet(f.rand)
 	sc := renderScope{set: &set}
 	if t, isTable := n.(*table); isTable {
 		if n, err = tableRecord(f.rand, t, tail, sc); err != nil {
@@ -204,7 +204,7 @@ type RecordTemplate struct {
 func (t *RecordTemplate) Fake() *Record {
 	t.g.mu.Lock()
 	defer t.g.mu.Unlock()
-	set := newHoldSet(t.g.rand)
+	set := eagerHoldSet(t.g.rand)
 	return renderRecord(t.g.rand, t.t, t.columns, renderScope{set: &set})
 }
 

render.go

@@ -23,7 +23,7 @@ func (f *Generator) Fake(path string) (string, error) {
 	if err != nil {
 		return "", fmt.Errorf("fejkdata: %w", err)
 	}
-	f.set = holdSet{unnamed: hold{s: f.rand}}
+	f.set = lazyHoldSet(f.rand)
 	sc := renderScope{set: &f.set}
 	f.root.children = f.categories
 	n, err := descend(f.rand, &f.root, segments, sc)
@@ -101,7 +101,7 @@ func render(s *session, n node, sc renderScope) string {
 //
 //go:noinline
 func expandAnew(s *session, t *template) string {
-	set := holdSet{unnamed: hold{s: s}}
+	set := lazyHoldSet(s)
 	return expand(s, t, renderScope{set: &set})
 }
 

struct.go

@@ -349,7 +349,7 @@ func (p *valueProof) checkField(label string, ft reflect.Type, column node) erro
 // fill draws the record into v's tagged fields, then each nested struct as a record of its own.
 func (s *structShape) fill(sess *session, v reflect.Value) {
 	if s.record != nil {
-		set := newHoldSet(sess)
+		set := eagerHoldSet(sess)
 		for i, c := range renderRecord(sess, s.record, s.columns, renderScope{set: &set}).columns {
 			setColumn(fieldAt(v, s.fields[i]), c)
 		}

todo.md

@@ -22,10 +22,6 @@ load-time fence and render-time machinery, so no file name said whether a unit r
 
 This round, in order:
 
-- Spell one fresh hold set one way: `newHoldSet` exists, and `render.go` and
-  `holdset.go` hand-roll `holdSet{unnamed: hold{s: s}}` at three sites; name the
-  lazy-map variant if the difference is deliberate, and put the hold set in one file:
-  `holdset.go` holds 57 lines after the split, and `render.go` two of the three sites.
 - Run the package doc's Go example under test, as `readme_test.go` runs the README's
   JSON blocks: `doc.go` and the README both print `Järvedsvägen 43\n891 77 Järved`
   for seed 42, and nothing renders either, so a draw that moves leaves both false.