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[PATCH] `try-module-autoload' and `current-reader'

From: Ludovic Courtès
Subject: [PATCH] `try-module-autoload' and `current-reader'
Date: Thu, 12 Jan 2006 10:06:48 +0100
User-agent: Gnus/5.110004 (No Gnus v0.4) Emacs/21.4 (gnu/linux)


In `boot-9.scm', `try-module-autoload' should be using `load-module',
and not `primitive-load', when loading a non-compiled module.  The
reasons are (i) non-autoloaded modules are loaded using `load-module'
and (ii) `load-module' and `primitive-load' interact differently with
the `current-reader' fluid.

`load-module' uses R4RS `load' which does some framing on the value of
`current-reader', setting it to `#f' (meaning: use the built-in `read')
if no optional reader argument was provided.  OTOH, `primitive-load'
doesn't change the value of `current-reader', thus resulting in a
different behavior.


2006-01-12  Ludovic Courtès  <address@hidden>

        * boot-9.scm (try-module-autoload): When loading a non-compiled
        file, use `load-module' instead of `primitive-load'.  Doing so
        will result in the use of the build-in reader when loading the
        module, no matter what the current value of `current-reader' is.

--- orig/ice-9/boot-9.scm
+++ mod/ice-9/boot-9.scm
@@ -2180,7 +2180,7 @@
                            (load-file load-compiled full)))
                      ((%search-load-path file)
                       => (lambda (full)
-                           (load-file primitive-load full))))))
+                           (load-file load-module full))))))
            (lambda () (set-autoloaded! dir-hint name didit)))

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