package alba

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Alba compiler

Install 

dune-project
 Dependency

albatross-lang.sourceforge.net Readme Edit opam file Versions (5)

Authors

  1. H
    Helmut Brandl <helmut.brandl@gmx.net>

Maintainers

  1. H
    Helmut Brandl <helmut.brandl@gmx.net>

Sources

0.4.4.tar.gz
sha256=4817038301d3e45bac9edf7e6f2fc8bf0a6d78e76e02ad7ea33ef69bcc17df3b
md5=25234357587126685d64f16236167937

doc/alba.core/Alba_core/Unifier/Make/argument-1-H/index.html

Parameter Make.H

include Gamma_algo.GAMMA
type t
val count : t -> int

Number of variables in the context.

val is_valid_index : int -> t -> bool
val name_of_index : int -> t -> string
val push_local : string -> Term.typ -> t -> t

push_local name typ gamma

Add the local variable with name and typ to the context.

Precondition

name <> ""
val type_of_literal : Value.t -> t -> Term.typ
val type_of_variable : int -> t -> Term.typ

type_of_variable idx gamma

Return the type of the variable idx. idx is the De Bruijn index i.e. and index of 0 points to the last variable and an index of count gamma - 1 points to the first variable.

val definition_term : int -> t -> Term.t option

definition_term idx gamma

If the variable idx has a definition, then return it. Otherwise return None.

val context : t -> Gamma.t
val expand : Term.t -> t -> Term.t
val is_hole : int -> t -> bool
val value : int -> t -> Term.t option
val fill_hole0 : int -> Term.t -> bool -> t -> t
val fold_entries : (int -> int -> string -> Term.typ -> bool -> Term.t option -> 'a -> 'a) -> t -> 'a -> 'a