Viewing Compiled Artifacts

neocaml can display OCaml compiled artifacts (.cmi, .cmo, .cmx, .cma, .cmxa, .cmxs, .cmt, .cmti) in a human-readable form using ocamlobjinfo. Just open any compiled file and neocaml will automatically show the ocamlobjinfo output instead of binary content.

You can also view a file explicitly with M-x neocaml-objinfo-view-file.

Keybinding	Command	Description
g	neocaml-objinfo-revert	Refresh the output (e.g. after recompilation)
n	neocaml-objinfo-next-unit	Jump to the next compilation unit (useful in archives)
p	neocaml-objinfo-previous-unit	Jump to the previous compilation unit
q	quit-window	Close the buffer

Configuration

;; Use a wrapper script (e.g. for opam exec)
(setq neocaml-objinfo-program "opam exec -- ocamlobjinfo")

;; Customize the flags passed to ocamlobjinfo.
;; The default is '("-no-approx" "-no-code" "-shape" "-index" "-decls" "-uid-deps").
;; The first two suppress verbose output from .cmx files; the rest
;; request additional metadata from .cmt/.cmti files (silently ignored
;; for other file types).
(setq neocaml-objinfo-program-args '("-no-approx" "-no-code"))