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* list.[ch] (scm_i_finite_list_copy): New internal function to

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copy lists that are known to be finite (though not necessarily
	proper).

	* debug.c (scm_procedure_source): Don't have scm_unmemocopy treat
	a closure's argument list like an expression of a body.

	* eval.c (unmemoize_expression, unmemoize_exprs, unmemoize_and,
	unmemoize_begin, unmemoize_case, unmemoize_cond, unmemoize_delay,
	unmemoize_do, unmemoize_if, unmemoize_lambda, unmemoize_let,
	unmemoize_letrec, unmemoize_letstar, unmemoize_or,
	unmemoize_set_x, unmemoize_apply, unmemoize_atcall_cc,
	unmemoize_at_call_with_values, unmemoize_future, sym_atslot_ref,
	unmemoize_atslot_ref, sym_atslot_set_x, unmemoize_atslot_set_x,
	unmemoize_builtin_macro): New static functions and symbols.

	(scm_unmemocopy): Rewritten in terms of the above.  scm_unmemocopy
	now has a slightly different meaning: The memoized form that is
	receives as its argument is now interpreted as a sequence of
	expressions from a body.

	(unmemocar, scm_unmemocar): Since the whole functionality of
	unmemocar and scm_unmemocar is not needed any more, scm_unmemocar
	has its old content back and is deprecated, while unmemocar has
	been removed.

	(SCM_BIT7): Removed.

	(CEVAL): For unmemoizing a single expression, call
	unmemoize_expression instead of scm_unmemocopy, which now expects
	a sequence of body expressions.  Eliminated unnecessary empty
	environment frame when executing let* forms.  Eliminated
	unmemoization step from evaluator.
This commit is contained in:
Dirk Herrmann 2004-06-06 07:46:18 +00:00
parent 9ccea37043
commit 212e58ede8
6 changed files with 595 additions and 321 deletions
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7
NEWS
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@ -804,6 +804,13 @@ Guile always defines
scm_t_timespec
** The function scm_unmemocopy now expects a sequence of body forms
Formerly, scm_unmemocopy would have accepted both, a single expression and a
sequence of body forms for unmemoization. Now, it only accepts only a
sequence of body forms, which was the normal way of using it. Passing it a
single expression won't work any more.
** The macro SCM_IFLAGP now only returns true for flags
User code should never have used this macro anyway. And, you should not use