https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114520
Bug ID: 114520
Summary: Incorrect ordering of import/export statements cause
confusing error messages
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: modula2
Assignee: gaius at gcc dot gnu.org
Reporter: gaius at gcc dot gnu.org
Target Milestone: ---
As reported on the gm2 mailing list:
$ cat localmodule2.mod
MODULE localmodule2 ;
FROM libc IMPORT printf ;
PROCEDURE mult2 (n: CARDINAL) : CARDINAL ;
BEGIN
RETURN 2*n
END mult2 ;
MODULE local ;
EXPORT mysqr ;
IMPORT mult2 ;
PROCEDURE mysqr (n: CARDINAL) : CARDINAL ;
BEGIN
RETURN mult2 (n) * mult2 (n)
END mysqr ;
END local ;
VAR
d: CARDINAL ;
BEGIN
d := mysqr (3) ;
printf ("sqr (3 * 2) = %d\n", d)
END localmodule2.
$ gm2 localmodule2.mod
localmodule2.mod:13:10: warning: In inner module ‘local’: syntax warning, ‘END’
missing
13 | IMPORT mult2 ;
| ^~~~~
localmodule2.mod:20:11: warning: In program module ‘localmodule2’: syntax
warning, ‘.’ missing
20 | END local ;
| ^
localmodule2.mod:1:8: error: module name at beginning ‘localmodule2’ does not
match the name at end ‘local’
1 | MODULE localmodule2 ;
| ^~~~~~~~~~~~
localmodule2.mod:10:8: error: In inner module ‘local’: module name at beginning
‘local’ does not match the name at end ‘mult2’
10 | MODULE local ;
| ^~~~~
localmodule2.mod:13:3: error: syntax error, found ‘IMPORT’
13 | IMPORT mult2 ;
| ^~~~~~
localmodule2.mod:13:10: error: module name at end ‘mult2’ does not match the
name at beginning ‘local’
13 | IMPORT mult2 ;
| ^~~~~
localmodule2.mod:20:5: error: In program module ‘localmodule2’: module name at
end ‘local’ does not match the name at beginning ‘localmodule2’
20 | END local ;
| ^~~~~
localmodule2.mod:20:11: error: syntax error, found ‘;’
20 | END local ;
| ^
localmodule2.mod:28:1: error: no scope active: compilation failed
The user level fix is to switch the IMPORT and EXPORT statement lines.
However the compiler should generate a more meaningful error message.
