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__MODULE__ doesn't give the current module with -o #6857

vicuna opened this issue May 5, 2015 · 1 comment


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commented May 5, 2015

Original bug ID: 6857
Reporter: @sliquister
Assigned to: @garrigue
Status: closed (set by @xavierleroy on 2016-12-07T10:49:11Z)
Resolution: fixed
Priority: normal
Severity: minor
Version: 4.02.1
Target version: 4.02.3+dev
Fixed in version: 4.02.2+dev / +rc1
Category: ~DO NOT USE (was: OCaml general)
Tags: junior_job
Monitored by: @gasche

Bug description

MODULE appears to be [String.capitalize (String.chop_suffix FILE)], which is not the current module when using -o to set a module name different than the current file name.

But its documentation is:
MODULE returns the module name of the file being parsed by the compiler.

So it looks like either the compiler or the documentation should be fixed (and preferably the compiler I think).

Steps to reproduce

These commands should output "Foo" twice but instead output "A" and "Argh".

cd /tmp
rm -f .cm
echo '
let () = Printf.printf "%S\n%!" MODULE
#1 "argh.p"
let () = Printf.printf "%S\n%!" MODULE
' >
ocamlopt -c -o foo
ocamlopt foo.cmx


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commented May 6, 2015

Comment author: @garrigue

Fixed in 4.02 at revision 16087.

@vicuna vicuna closed this Dec 7, 2016

@vicuna vicuna added the junior-job label Mar 14, 2019

@vicuna vicuna added this to the 4.02.3 milestone Mar 14, 2019

@vicuna vicuna added the bug label Mar 20, 2019

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