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guile/module/oop
Michael Käppler 80d4055e42
Fix error messages containing format strings
The builtin primitive procedure `error` takes an optional message and
a list of arguments to include into the error message.
These args are formatted with `~S` and appended to the error message, so
that an example call of

`(error "Wrong argument: " 42)`

results in the output

"Wrong argument: 42"

If format strings occur in the message itself, however, they are
escaped. Thus a call like

`(error "Wrong argument: ~a" 42)`

is rendered as

"Wrong argument: ~a 42"

Some callers did not take this behavior into account, leading to
confusing error messages.
Changing the behavior of `error` to be
both backwards-compatible and accept also format strings inside messages
is not straightforward, because it would have to handle escaped `~`
characters as well. Therefore, fix `error` call sites using format
strings to use `format` before calling out to `error`.

The following files are affected:

* module/ice-9/format.scm (format)
* module/ice-9/r6rs-libraries.scm (resolve-r6rs-interface)
* module/oop/goops.scm (make)
* module/srfi/srfi-37.scm (Comment at the beginning of file)
* module/system/base/compile.scm (call-once)
* module/system/repl/command.scm (break, tracepoint)
* module/system/repl/common.scm (repl-default-options)
* module/system/vm/traps.scm (arg-check, trap-at-source-location)

There are a couple of further call sites that were left unchanged,
either because they are using their own `error` procedure:

* module/ice-9/read.scm
* module/ice-9/command-line.scm

or are not referenced from other modules:

* module/system/base/lalr.upstream.scm:
* module/sxml/upstream/assert.scm:
* module/sxml/sxml-match.ss:

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2024-05-06 11:51:53 +02:00
..
goops Move copy-tree to (ice-9 copy-tree); deprecate main binding 2020-09-10 21:57:21 +02:00
ChangeLog-2008 move ice-9/ and oop/ under module/ 2008-11-01 12:44:21 +01:00
goops.scm Fix error messages containing format strings 2024-05-06 11:51:53 +02:00