This is not quite a bug report but an enhancement
suggestion.
ice-9/syncase.scm provides a procedure
datum->syntax-object that insists that its first
argument be a syntax-object that is an
identifier.
This is an unnecessary restriction, and removing
this check makes writing low-level macros easier,
because you can give a syntax-object directly as
datum->syntax-object's first argument, instead of
destructuring it to get an appropriate identifier. The
latter is a tedious process that doesn't buy anything,
since the containing syntax-object and the contained
identifier have the same syntax properties as far as
datum->syntax-object is concerned.
To effect this change, you need to modify
ice-9/psyntax.ss as follows:
(set! datum->syntax-object
(lambda (id datum)
(arg-check nonsymbol-id? id 'datum->syntax-object)
(make-syntax-object datum (syntax-object-wrap id))))
becomes
(set! datum->syntax-object
(lambda (id datum)
(make-syntax-object datum (syntax-object-wrap id))))
Then regenerate psyntax.pp.
Sincerely,
--Dorai Sitaram
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