validateNamespacedImport() — react Function Reference

Source Code

compiler/packages/babel-plugin-react-compiler/src/Entrypoint/ValidateNoUntransformedReferences.ts lines 223–269

function validateNamespacedImport(
  specifier: NodePath<t.ImportNamespaceSpecifier | t.ImportDefaultSpecifier>,
  importSpecifierChecks: Map<string, CheckInvalidReferenceFn>,
  state: TraversalState,
): void {
  if (state.shouldInvalidateScopes) {
    state.shouldInvalidateScopes = false;
    state.program.scope.crawl();
  }
  const local = specifier.get('local');
  const binding = local.scope.getBinding(local.node.name);
  const defaultCheckFn = importSpecifierChecks.get(DEFAULT_EXPORT);

  CompilerError.invariant(binding != null, {
    reason: 'Expected binding to be found for import specifier',
    loc: local.node.loc ?? GeneratedSource,
  });
  const filteredReferences = new Map<
    CheckInvalidReferenceFn,
    Array<NodePath<t.Node>>
  >();
  for (const reference of binding.referencePaths) {
    if (defaultCheckFn != null) {
      getOrInsertWith(filteredReferences, defaultCheckFn, () => []).push(
        reference,
      );
    }
    const parent = reference.parentPath;
    if (
      parent != null &&
      parent.isMemberExpression() &&
      parent.get('object') === reference
    ) {
      if (parent.node.computed || parent.node.property.type !== 'Identifier') {
        continue;
      }
      const checkFn = importSpecifierChecks.get(parent.node.property.name);
      if (checkFn != null) {
        getOrInsertWith(filteredReferences, checkFn, () => []).push(parent);
      }
    }
  }

  for (const [checkFn, references] of filteredReferences) {
    checkFn(references, state);
  }
}