instructions when dispatching - just always dispatch on the
instruction code, which is common for short and long instructions.
Further, removed unnecessary goto statements and added comment.
long instructions when dispatching - just always dispatch on the
instruction code, which is common for short and long instructions.
Further, removed unnecessary goto statements, fixed indentation
and replaced SCM_IMP predicates by SCM_NULLP.
SCM_DEBUGGINGP:
* debug.h (scm_debug_mode_p, scm_debug_mode, SCM_DEBUGGINGP),
eval.c (scm_debug_mode_p): Deprecated scm_debug_mode and
SCM_DEBUGGINGP. Provided scm_debug_mode_p instead, to have one
single interface that also matches the naming conventions.
Probably scm_debug_mode_p should be part of the private interface
anyway.
* debug.h (scm_debug_mode_p), backtrace.c (display_error_body),
eval.c (SCM_APPLY, scm_trampoline_0, scm_trampoline_1,
scm_trampoline_2): Change uses of scm_debug_mode or SCM_DEBUGGINGP
to scm_debug_mode_p.
Deprecate direct access to scm_ceval, scm_deval and scm_ceval_ptr:
* eval.h (scm_ceval, scm_deval, scm_ceval_ptr), debug.h
(scm_ceval_ptr): Deprecated. Moved declaration of scm_ceval_ptr
from debug.h to eval.h.
* debug.h (SCM_RESET_DEBUG_MODE): Don't access scm_ceval_ptr any
more, just leave it with setting scm_debug_mode_p, which is
equivalent for practical purposes.
* deprecated.h (SCM_XEVAL, SCM_XEVALCAR): Call scm_i_eval_x
instead of *scm_ceval_ptr. Leave all evaluating to scm_i_eval_x.
* gdbint.c (gdb_eval): Call scm_i_eval_x instead of scm_ceval.
* eval.c (ceval, deval, scm_ceval, scm_deval): Made scm_ceval
static and renamed it to ceval throughout. Provide a new exported
but deprecated function scm_ceval as a wrapper for backwards
compatibility. The same is done for the deval/scm_deval pair of
functions.
* eval.c (CEVAL, SCM_CEVAL): Renamed SCM_CEVAL to CEVAL
throughout. Defined CEVAL to ceval or deval, based on compilation
phase.
* eval.c (SCM_XEVAL, SCM_XEVALCAR): Dispatch on scm_debug_mode_p
to ceval and deval instead of calling *scm_ceval_ptr.
* eval.c (dispatching_eval): New deprecated static function.
* eval.c (scm_ceval_ptr): Initialized to dispatching_eval in order
to emulate its old behaviour as closely as possible.
Change the evaluator such that only expressions for which pair? is
true are passed to CEVAL, and such that all other expressions are
evaluated outside of CEVAL:
* eval.c (EVAL): New, provided in analogy to EVALCAR. Evaluate an
expression that is assumed to be memoized already. All but
expressions of the form '(<form> <form> ...)' are evaluated inline
without calling an evaluator.
* eval.c (SCM_XEVAL, SCM_XEVALCAR, EVALCAR): Evaluate all but
expressions of the form '(<form> <form> ...)' inline without
calling an evaluator.
* eval.c (scm_i_eval_x, scm_i_eval, scm_ceval, scm_deval): Handle
the special case of unmemoized symbols passed on the top level.
* eval.c (CEVAL): Change calls to CEVAL to EVAL, except where it
is known that the expression passed to CEVAL is of the form
'(<form> <form> ...)'. Remove handling of the tc7-objects, since
now it is known that the input expression of CEVAL is a pair.
from the memoization part of the file.
(copy_tree): New static function
(scm_copy_tree): Rewritten to fix two kinds or bugs: First, cyclic
structures are detected now and will lead to an exception instead
of forcing guile to run in an endless loop, using up all the
system's memory. Second, arrays in the cdr of an improper list
are now copied. See the new test cases in eval.test.
* test-suite/tests/eval.test: Added tests which reflect the recent
fixes to copy-tree.
SCM_DEBUG_CELL_ACCESSES is not defined. Scheme source code should
use (if (defined? 'set-debug-cell-accesses!) .. ) to switch on
debugging conditionally.
