package elpi

You can search for identifiers within the package.

in-package search v0.2.0

elpi
- Elpi_API
  - Ast
  - Compile
    
    StrSet
  - Data
    
    StrMap
  - Execute
  - Extend
    
    BuiltInPredicate
    
    Notation
    
    CData
    
    Compile
    
    State
    
    CustomConstraint
    
    CustomFunctor
    
    Data
    
    C
    
    Constants
    
    Map
    
    Set
    
    Pp
    
    Raw
    
    Utils
  - Parse
  - Pp
    
    Ast
  - Setup
- Elpi_builtin

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Class type

In order to implement quotations one may * need to stick some data into the compiler state that can indeed be * extended. A piece of compiler state can also be kept and used at runtime, * e.g. if it contains some custom constraints, see CustomConstraint

type t

type 'a component

val declare : 
  name:string ->
  init:(unit -> 'a) ->
  pp:(Format.formatter -> 'a -> unit) ->
  'a component

val get : 'a component -> t -> 'a

val set : 'a component -> t -> 'a -> t

val update : 'a component -> t -> ('a -> 'a) -> t

val update_return : 'a component -> t -> ('a -> 'a * 'b) -> t * 'b