build: fix dts rewrite to avoid exporting non-exported types

rollup.dts.config.js

@@ -88,18 +88,35 @@ function patchTypes(pkg) {
  return false
  }
 
+ const isExported = new Set()
  const shouldRemoveExport = new Set()
+
+ // pass 0: check all exported types
+ for (const node of ast.program.body) {
+ if (node.type === 'ExportNamedDeclaration' && !node.source) {
+ for (let i = 0; i < node.specifiers.length; i++) {
+ const spec = node.specifiers[i]
+ if (spec.type === 'ExportSpecifier') {
+ isExported.add(spec.local.name)
+ }
+ }
+ }
+ }
+
  // pass 1: remove internals + add exports
  for (const node of ast.program.body) {
  if (
  (node.type === 'TSTypeAliasDeclaration' ||
  node.type === 'TSInterfaceDeclaration') &&
  !node.id.name.startsWith(`_`)
  ) {
- shouldRemoveExport.add(node.id.name)
+ const name = node.id.name
+ shouldRemoveExport.add(name)
  if (!removeInternal(node)) {
- // @ts-ignore
- s.prependLeft(node.start, `export `)
+ if (isExported.has(name)) {
+ // @ts-ignore
+ s.prependLeft(node.start, `export `)
+ }
  // traverse further for internal properties
  if (node.type === 'TSInterfaceDeclaration') {
  node.body.body.forEach(removeInternal)