package elpi

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in-package search v0.2.0

package elpi

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

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Class type

Data of the host program that is opaque to Elpi.

type t

type 'a data_declaration = {

data_name : string;
data_pp : Format.formatter -> 'a -> unit;
data_eq : 'a -> 'a -> bool;
data_hash : 'a -> int;
data_hconsed : bool;

}

The eq function is used by unification. Limitation: unification of * two cdata cannot alter the constraint store. This can be lifted in the * future if there is user request. * * If the data_hconsed is true, then the cin function below will * automatically hashcons the data using the eq and hash functions.

type 'a cdata = private {

cin : 'a -> t;
isc : t -> bool;
cout : t -> 'a;
name : string;

}

val declare : 'a data_declaration -> 'a cdata

val pp : Format.formatter -> t -> unit

val show : t -> string

val equal : t -> t -> bool

val hash : t -> int

val name : t -> string

val hcons : t -> t

val ty2 : 'a cdata -> t -> t -> bool

val morph1 : 'a cdata -> ('a -> 'a) -> t -> t

val morph2 : 'a cdata -> ('a -> 'a -> 'a) -> t -> t -> t

val map : 'a cdata -> 'b cdata -> ('a -> 'b) -> t -> t