internal/godoc: rename RenderPartsFromUnit

For golang/go#40850

Change-Id: I82b7b3cd683eedacc6e49e66bca5b5a2f5a19ae8
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/312430
Trust: Jonathan Amsterdam <jba@google.com>
Run-TryBot: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Julie Qiu <julie@golang.org>

internal/fetch/fetch_test.go

@@ -161,7 +161,7 @@ func validateDocumentationHTML(t *testing.T, got *internal.Module, want map[stri
 	ctx := context.Background()
 	for _, u := range got.Units {
 		if wantStrings := want[u.Path]; wantStrings != nil {
-			parts, err := godoc.RenderPartsFromUnit(ctx, u)
+			parts, err := godoc.RenderFromUnit(ctx, u)
 			if err != nil && !errors.Is(err, godoc.ErrTooLarge) {
 				t.Fatal(err)
 			}

internal/godoc/render.go

@@ -39,10 +39,6 @@ const (
 // It is a variable for testing.
 var MaxDocumentationHTML = 20 * megabyte
 
-// A Renderer renders documentation for a Package.
-type Renderer struct {
-}
-
 // DocInfo returns information extracted from the package's documentation.
 // This destroys p's AST; do not call any methods of p after it returns.
 func (p *Package) DocInfo(ctx context.Context, innerPath string, sourceInfo *source.Info, modInfo *ModuleInfo) (
@@ -207,9 +203,9 @@ func (p *Package) Render(ctx context.Context, innerPath string,
 	return parts, nil
 }
 
-// RenderPartsFromUnit is a convenience function that first decodes the source
-// in the unit, which must exist, and then calls RenderParts.
-func RenderPartsFromUnit(ctx context.Context, u *internal.Unit) (_ *dochtml.Parts, err error) {
+// RenderFromUnit is a convenience function that first decodes the source
+// in the unit, which must exist, and then calls Render.
+func RenderFromUnit(ctx context.Context, u *internal.Unit) (_ *dochtml.Parts, err error) {
 	docPkg, err := DecodePackage(u.Documentation[0].Source)
 	if err != nil {
 		return nil, err

internal/worker/fetch_test.go

@@ -335,7 +335,7 @@ func TestFetchAndUpdateState(t *testing.T) {
 				return
 			}
 			if gotPkg.Documentation != nil {
-				parts, err := godoc.RenderPartsFromUnit(ctx, gotPkg)
+				parts, err := godoc.RenderFromUnit(ctx, gotPkg)
 				if err != nil {
 					t.Fatal(err)
 				}