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
    
    CustomFunctor
    
    CustomState
    
    Data
    
    C
    
    Constants
    
    Map
    
    Set
    
    Pp
    
    Raw
    
    Utils
  - Parse
  - Pp
    
    Ast
  - Setup
- Elpi_builtin

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type 'a component

'a MUST be purely functional, i.e. backtracking is implemented by using * an old binding for 'a. * This limitation can be lifted if there is user request.

type ('a, 'b) source =

| CompilerState of 'b Compile.State.component * 'b -> 'a
| Other of unit -> 'a

The initial value of the constraint can be produced at compilation * time (e.g. by quotations) or by reading a global value.

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

type t = Data.custom_state

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

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

Allowed to raise BuiltInPredicate.No_clause

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

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