| UnicodeStr | Language.Hi.FastString |
| Usage |
| 1 (Type/Class) | Language.Hi.Syntax, Language.Hi.Parser |
| 2 (Data Constructor) | Language.Hi.Syntax, Language.Hi.Parser |
| union | System.Plugins.Env |
| uniqueOfFS | Language.Hi.FastString |
| unless | System.Eval.Utils, System.Eval.Haskell, System.Eval |
| unload | System.Plugins.Load, System.Plugins |
| unloadAll | System.Plugins.Load, System.Plugins |
| unloadPackage | System.Plugins.Load, System.Plugins |
| unpackFS | Language.Hi.FastString |
| unpackIntFS | Language.Hi.FastString |
| unpackNBytesBA | Language.Hi.PrimPacked |
| unsafeEval | System.Eval.Haskell, System.Eval |
| unsafeEval_ | System.Eval.Haskell, System.Eval |
| updImportDirs | System.Plugins.PackageAPI |
| updLibraryDirs | System.Plugins.PackageAPI |
| usg_entities | Language.Hi.Syntax, Language.Hi.Parser |
| usg_exports | Language.Hi.Syntax, Language.Hi.Parser |
| usg_mod | Language.Hi.Syntax, Language.Hi.Parser |
| usg_name | Language.Hi.Syntax, Language.Hi.Parser |
| usg_rules | Language.Hi.Syntax, Language.Hi.Parser |
