A.8 Namespaces

  NamespaceDeclaration:   namespace IdentifierPath { NamespaceBody }

  IdentifierPath:   BindingIdentifier   IdentifierPath . BindingIdentifier

  NamespaceBody:   NamespaceElementsopt

  NamespaceElements:   NamespaceElement   NamespaceElements NamespaceElement

  NamespaceElement:   Statement   LexicalDeclaration   FunctionDeclaration   GeneratorDeclaration   ClassDeclaration   InterfaceDeclaration   TypeAliasDeclaration   EnumDeclaration   NamespaceDeclaration   AmbientDeclaration   ImportAliasDeclaration   ExportNamespaceElement

  ExportNamespaceElement:   export VariableStatement   export LexicalDeclaration   export FunctionDeclaration   export GeneratorDeclaration   export ClassDeclaration   export InterfaceDeclaration   export TypeAliasDeclaration   export EnumDeclaration   export NamespaceDeclaration   export AmbientDeclaration   export ImportAliasDeclaration

  ImportAliasDeclaration:   import BindingIdentifier = EntityName ;

  EntityName:   NamespaceName   NamespaceName . IdentifierReference