[Bug-kawa] [bug #34859] (require ...) behaves differently between repl and direct invocation

[Robin Abbi]

URL:
  <http://savannah.gnu.org/bugs/?34859>

                 Summary: (require ...) behaves differently between repl and
direct invocation
                 Project: Kawa
            Submitted by: coderobot
            Submitted on: Fri 18 Nov 2011 23:43:43 GMT
                Category: Scheme language
                Severity: 3 - Normal
              Item Group: Unexpected result
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

1. Create a library 'messages.scm' with two functions:

(define hello
  (lambda (name)
     (format "hello ~a" name)))

(define goodbye
  (lambda (name)
     (format "goodbye ~a" name)))

2. Compile using the kawac Ant task.

3. Create a program "controller.scm" to use the above defined functions

(require <com.example.messages>)
(format #t "~a~%" (com.example.messages:hello "world"))

Compile (using kawac as before)

Run: java -cp build/classes:kawa-1.11.jar com.example.controller

Output: "hello world"

4. Now try to do the same thing from the repl

Start the repl:

java -cp build/classes:kawa-1.11.jar kawa.repl

then at the prompt:

(require <com.example.messages>) [ENTER]
(format "~a~!" (com.example.messages:goodbye "world"))

and get the output:

"no slot 'goodbye' in com.example.messages"

6. Workaround: If I explicitly use (export goodbye) in messages.scm then the
repl finds the method ok.

I was not expecting this difference in behaviours between invocation direct
and invocation at the repl. Possibly same as bug report #32726?




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