| objectKeyRequiresQuoting | Language.PureScript.Pretty.Common |
| ObjectLiteral | |
| 1 (Data Constructor) | Language.PureScript.AST.Literals, Language.PureScript.AST, Language.PureScript.Errors, Language.PureScript.CoreFn, Language.PureScript |
| 2 (Data Constructor) | Language.PureScript.CoreImp.AST, Language.PureScript.CoreImp |
| ObjectUpdate | |
| 1 (Data Constructor) | Language.PureScript.CoreFn.Expr, Language.PureScript.CoreFn |
| 2 (Data Constructor) | Language.PureScript.AST.Declarations, Language.PureScript.AST, Language.PureScript.Errors, Language.PureScript |
| ObjectUpdateNested | Language.PureScript.AST.Declarations, Language.PureScript.AST, Language.PureScript.Errors, Language.PureScript |
| One | Language.PureScript.CST.Types, Language.PureScript.CST |
| oneOf | Language.PureScript.CST.Monad |
| OneOrDelimited | Language.PureScript.CST.Types, Language.PureScript.CST |
| onErrorMessages | Language.PureScript.Errors, Language.PureScript |
| onTypeSearchTypes | Language.PureScript.AST.Declarations, Language.PureScript.AST, Language.PureScript.Errors, Language.PureScript |
| onTypeSearchTypesM | Language.PureScript.AST.Declarations, Language.PureScript.AST, Language.PureScript.Errors, Language.PureScript |
| onTypesInErrorMessage | Language.PureScript.Errors, Language.PureScript |
| onTypesInErrorMessageM | Language.PureScript.Errors, Language.PureScript |
| Op | Language.PureScript.AST.Declarations, Language.PureScript.AST, Language.PureScript.Errors, Language.PureScript |
| OpBinder | Language.PureScript.AST.Binders, Language.PureScript.AST, Language.PureScript.Errors, Language.PureScript |
| OpName | |
| 1 (Type/Class) | Language.PureScript.Names, Language.PureScript |
| 2 (Data Constructor) | Language.PureScript.Names, Language.PureScript |
| 3 (Type/Class) | Language.PureScript.CST.Utils |
| 4 (Data Constructor) | Language.PureScript.CST.Utils |
| opName | Language.PureScript.CST.Utils |
| opNameT | Language.PureScript.Ide.Util |
| OpNameType | Language.PureScript.Names, Language.PureScript |
| opTable | Language.PureScript.Sugar.Operators.Common |
| optimize | Language.PureScript.CoreImp.Optimizer, Language.PureScript.CoreImp |
| optimizeCommonSubexpressions | Language.PureScript.CoreFn.CSE |
| optimizeCoreFn | Language.PureScript.CoreFn.Optimizer, Language.PureScript.CoreFn |
| Options | |
| 1 (Type/Class) | Language.PureScript.Options, Language.PureScript |
| 2 (Data Constructor) | Language.PureScript.Options, Language.PureScript |
| optionsCodegenTargets | Language.PureScript.Options, Language.PureScript |
| optionsNoComments | Language.PureScript.Options, Language.PureScript |
| optionsVerboseErrors | Language.PureScript.Options, Language.PureScript |
| Or | Language.PureScript.CoreImp.AST, Language.PureScript.CoreImp |
| Ord | Language.PureScript.Constants.Libs |
| Ord1 | Language.PureScript.Constants.Libs |
| Ordering | Language.PureScript.Constants.Libs |
| OrphanInstance | Language.PureScript.Errors, Language.PureScript |
| OrphanKindDeclaration | Language.PureScript.Errors, Language.PureScript |
| OrphanRoleDeclaration | Language.PureScript.Errors, Language.PureScript |
| OrphanTypeDeclaration | Language.PureScript.Errors, Language.PureScript |
| OtherError | |
| 1 (Type/Class) | Language.PureScript.Publish.ErrorsWarnings |
| 2 (Data Constructor) | Language.PureScript.Publish.ErrorsWarnings |
| otherError | Language.PureScript.Publish |
| OtherHint | Language.PureScript.AST.Declarations, Language.PureScript.AST, Language.PureScript.Errors, Language.PureScript |
| OtherModule | Language.PureScript.Docs.RenderedCode.Types, Language.PureScript.Docs.RenderedCode, Language.PureScript.Docs.Types, Language.PureScript.Docs |
| outputPrimDocs | Language.PureScript.Make.Actions, Language.PureScript.Make, Language.PureScript |
| outputWith | Language.PureScript.Docs.RenderedCode.Types, Language.PureScript.Docs.RenderedCode, Language.PureScript.Docs |
| overConstraintArgs | Language.PureScript.Types, Language.PureScript |
| overConstraintArgsAll | Language.PureScript.Types, Language.PureScript |
| OverlappingArgNames | Language.PureScript.Errors, Language.PureScript |
| OverlappingInstances | Language.PureScript.Errors, Language.PureScript |
| OverlappingNamesInLet | Language.PureScript.Errors, Language.PureScript |
| OverlappingPattern | Language.PureScript.Errors, Language.PureScript |
| overTypes | Language.PureScript.AST.Traversals, Language.PureScript.AST, Language.PureScript.Errors, Language.PureScript |