part of copy_stack_and_call.
(copy_stack_and_call): Copy the stack after unwinding and before
rewinding.
(scm_dynthrow): Do not call scm_dowinds, this is now done by
copy_stack_and_call.
scm_begin_frame, scm_end_frame, scm_on_unwind, scm_on_rewind):
New.
(scm_dowinds, scm_i_dowinds): scm_dowinds has been renamed to
scm_i_dowinds and extended to handle frames and to invoke a 'turn'
function when the outermost wind point has been reached. The
latter is used to copy a continuation stack at the right time.
scm_dowinds remains available.
(SCM_GUARDSP, SCM_BEFORE_GUARD, SCM_AFTER_GUARD, SCM_GUARD_DATA,
tc16_guard, guards_print): Removed.
(scm_internal_dynamic_wind): Reimplemented using frames.
(m_body): Fixed comment.
(scm_m_define): Don't generate memoized code for definitions that
are not on the top level. As a consequence, no memoized code at
all is generated for definitions any more: Top level definitions
are executed immediately during memoization and internal
definitions are handled separately in m_expand_body.
(scm_unmemocopy, unmemocopy): Removed code for unmemoizing
definitions. Consequently, there is no unmemoizing code any more
that might modify the environment. Thus, the old scm_unmemocopy
is removed and the old unmemocopy is renamed to scm_unmemocopy.
(SCM_CEVAL): The SCM_IM_DEFINE keyword can no longer occur in
memoized code. Call EVALCAR for continuations. Prefer !SCM_NULLP
over SCM_NIMP in places, where the argument is known to be part of
a proper list.
of scm_equal_p as a C boolean, use SCM_FALSEP. Previously, all
fractions were equal to each other regardless of value. Ooops.
* numbers.c (scm_rationalize): Return an inexact result when given
inexact arguments.
(lookup_global_symbol, lookup_symbol): New static functions.
(s_test, s_bindings, s_duplicate_bindings, s_variable): Removed.
(try_macro_lookup, literal_p): Use lookup_symbol instead of
creating a temporary pair for scm_lookupcar.
(scm_unmemocar, unmemocar): Renamed scm_unmemocar to unmemocar,
created deprecated wrapper function scm_unmemocar.
(SCM_VALIDATE_NON_EMPTY_COMBINATION, scm_sym_else,
scm_sym_unquote, scm_sym_uq_splicing, scm_sym_enter_frame,
scm_sym_apply_frame, scm_sym_exit_frame, scm_sym_trace, f_apply,
undefineds, sym_three_question_marks): Moved around without
modifications.
* eval.c, eval.h (scm_macroexp, scm_unmemocar): Deprecated.
(canonicalize_define, scm_m_define): The check for a bad
expression is performed in canonicalize_define now.
(try_macro_lookup, expand_user_macros, is_system_macro_p): New
static helper functions for m_expand_body.
(m_expand_body): Use ASSERT_SYNTAX to signal syntax errors. Only
expand user defined macros. Fixed handling of the definition/
expression boundary. Fixed handling of definitions grouped with
'begin. Use canonicalize_define to expand definitions.
* test-suite/tests/syntax.test: Tests that check for the correct
handling of internal defines with begin work now.
SCM_SMOB_FREE, SCM_GLOBAL_SMOB_FREE, SCM_SMOB_PRINT,
SCM_GLOBAL_SMOB_PRINT, SCM_SMOB_EQUALP, SCM_GLOBAL_SMOB_EQUALP,
SCM_SMOB_APPLY, SCM_GLOBAL_SMOB_APPLY): New macros from Paul Jarc.
Thanks!
