package rocq-runtime
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dune-project
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sha256=b236dc44f92e1eeca6877c7ee188a90c2303497fe7beb99df711ed5a7ce0d824
doc/rocq-runtime.boot/Boot/Env/index.html
Module Boot.EnvSource
Rocq runtime enviroment API.
This module provides functions for manipulation of Rocq's runtime enviroment, including the standard directories and support files.
This API is similar in spirit to findlib's or dune-sites API, see their documentation for more information:
- http://projects.camlcity.org/projects/dl/findlib-1.9.1/doc/ref-html/lib/index.html
- https://dune.readthedocs.io/en/stable/sites.html#sites
It is important that this library has a minimal dependency set.
The Rocq runtime enviroment needs to be properly initialized before use; we detail the rules below. It is recommended that applications requiring multiple accesses to the environment, do initialize it once and keep a ref to it. We don't forbid yet double initialization, (second time is a noop) but we may do so in the future. Rules for "coqlib" are:
- the
ROCQLIBenv variable will be used if set - if not, the existence of
theories/Init/Prelude.vowill be checked, in the following order:
coqlibsuffixgiven in configurecoqlibgiven in configure
- if none of the above succeeds, the initialization will fail
- The
ROCQRUNTIMELIBenv variable is also used if set, if not, the location of the rocq-runtime files will be assumed to beROCQLIB/../rocq-runtime, except ifROCQLIB/pluginsexistsas in some developers layouts, in which case we will setROCQRUNTIMELIB:=ROCQLIB.
Note that set_coqlib is used by some commands to process the -coqlib option, as of now this sets both coqlib and coqcorelib; this part of the initialization will be eventually moved here.
The error handling policy of this module is simple for now: failing to initialize Rocq's env will produce a fatal error, and the application will exit with code 1. No error handling is thus required on the client yet.
This API is loosely inspired by Stdune.Path, for now we keep it minimal, but at some point we may extend it.
Rocq runtime enviroment, including location of Rocq's Corelib
Returns None if the environment has not been initialized.
val maybe_init :
warn_ignored_coqlib:(unit -> unit) ->
boot:bool ->
coqlib:string option ->
maybe_envInit if boot:false, possibly with a user provided coqlib. Incompatible arguments run warn_ignored_coqlib (ie with boot:true and coqlib:Some)
Usual messsage used for warn_ignored_coqlib
val print_queries_maybe_init :
warn_ignored_coqlib:(unit -> unit) ->
boot:bool ->
coqlib:string option ->
Usage.specific_usage option ->
Usage.query list ->
(maybe_env, string) resultIf the query list is empty, behave as maybe_init. Otherwise, print the queries.
If the usage argument is None, the queries must not be PrintHelp.
If a query needs an environment, boot must not be true. If there are queries and none need an environment, returns Ok Boot even if boot was false.
camlfind () is the path to the ocamlfind binary.