package ocaml-base-compiler

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in-package search v0.2.0

Official release 5.2.1

Install

Dune Dependency

ocaml.org Edit opam file Versions (99)

Authors

Xavier Leroy

Maintainers

Sources

ocaml-5.2.1.tar.gz

sha256=2d0f8090951a97a2c0e5b8a11e90096c0e1791d2e471e4a67f87e3b974044cd0

doc/compiler-libs.common/Errortrace/Subtype/index.html

Module `Errortrace.Subtype`

type 'a elt =

| Diff of 'a diff

type 'a t = 'a elt list

Just as outside Subtype, we split traces, completed traces, and complete errors. However, in a minor asymmetry, the name Subtype.error_trace corresponds to the outside error type, and Subtype.error corresponds to the outside *_error types (e.g., unification_error). This error type has the invariant that the subtype trace is nonempty; note that no such invariant is imposed on the unification trace.

type trace = Types.type_expr t

type error_trace = expanded_type t

type unification_error_trace = unification error

To avoid shadowing

type nonrec error = private {

trace : error_trace;
unification_trace : unification error;

}

val error : 
  trace:error_trace ->
  unification_trace:unification_error_trace ->
  error

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