Ast\_helper.Cty(3) OCaml library Ast\_helper.Cty(3)

# [NAME](#NAME)

Ast\_helper.Cty - Class type expressions

# [Module](#Module)

Module Ast\_helper.Cty

# [Documentation](#Documentation)

Module **Cty**  
: **sig end**

Class type expressions

*val mk* : **?loc:Ast\_helper.loc ->** **?attrs:Ast\_helper.attrs -> Parsetree.class\_type\_desc -> Parsetree.class\_type**

*val attr* : **Parsetree.class\_type -> Parsetree.attribute -> Parsetree.class\_type**

*val constr* : **?loc:Ast\_helper.loc ->** **?attrs:Ast\_helper.attrs ->** **Ast\_helper.lid -> Parsetree.core\_type list -> Parsetree.class\_type**

*val signature* : **?loc:Ast\_helper.loc ->** **?attrs:Ast\_helper.attrs -> Parsetree.class\_signature -> Parsetree.class\_type**

*val arrow* : **?loc:Ast\_helper.loc ->** **?attrs:Ast\_helper.attrs ->** **Asttypes.arg\_label ->** **Parsetree.core\_type -> Parsetree.class\_type -> Parsetree.class\_type**

*val extension* : **?loc:Ast\_helper.loc ->** **?attrs:Ast\_helper.attrs -> Parsetree.extension -> Parsetree.class\_type**

*val open\_* : **?loc:Ast\_helper.loc ->** **?attrs:Ast\_helper.attrs ->** **Parsetree.open\_description -> Parsetree.class\_type -> Parsetree.class\_type**

2026-09-04 OCamldoc

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Document: Ast_helper.Cty(3o) from ocaml 5.5.1-r0 (Chainguard OS)
Source: https://github.com/ocaml/ocaml