* libguile/weak-vector.c:
* libguile/weak-vector.h: Renamed from weaks.[ch]. Remove weak pairs.
They were not safe to access with `car' and `cdr'. Remove weak alist
vectors, as we have weak tables and sets. Reimplement weak vectors,
moving the implementation here.
* libguile/vectors.c:
* libguile/vectors.h: Remove the extra header word. Use
scm_c_weak_vector_ref / scm_c_weak_vector_set_x to access weak
vectors.
* libguile/snarf.h: Remove the extra header word in vectors.
* libguile/threads.c (do_thread_exit, fat_mutex_lock, fat_mutex_unlock):
Instead of weak pairs, store thread-owned mutexes in a list of
one-element weak vectors.
* libguile/guardians.c (finalize_guarded): Similarly, store object
guardians in a list of one-element weak vectors.
* libguile/modules.c (scm_module_reverse_lookup): We no longer need to
handle the case of weak references.
* libguile/print.c (iprin1): Use the standard vector accessor to print
vectors.
* libguile.h:
* libguile/Makefile.am:
* libguile/gc-malloc.c:
* libguile/gc.c:
* libguile/goops.c:
* libguile/init.c:
* libguile/objprop.c:
* libguile/struct.c: Update includes.
* module/ice-9/weak-vector.scm: Load weak vector definitions using an
extension instead of %init-weaks-builtins.
* test-suite/tests/weaks.test: Use the make-...-hash-table names instead
of the old alist vector names.
* libguile/modules.c (resolve_duplicate_binding): Fix unbound -> #f
conversion for the imported bindings. Pass the existing entry in the
import obarray as the resolved var (7th arg), and properly pass #f as
the value (8th arg) if there is no such binding. Fixes
merge-generics; before, the <boolean> type test (indicating no
previous value) was not being triggered. This bug has been present
since 2007 at least, though it was not in 1.8.
* test-suite/tests/modules.test ("duplicate bindings"): Add a test that
the var and val are both #f. These types are used by GOOPS.
* libguile/modules.h:
* libguile/modules.c (scm_public_lookup, scm_private_lookup)
(scm_c_public_lookup, scm_c_private_lookup, scm_public_ref)
(scm_private_ref, scm_c_public_ref, scm_c_private_ref)
(scm_public_variable, scm_private_variable, scm_c_public_variable)
(scm_c_private_variable): New helpers to get at variables and values
in modules.
* libguile/bytevectors.c:
* libguile/eval.c:
* libguile/goops.c:
* libguile/i18n.c:
* libguile/load.c:
* libguile/memoize.c:
* libguile/modules.c:
* libguile/ports.c:
* libguile/print.c:
* libguile/procs.c:
* libguile/programs.c:
* libguile/read.c:
* libguile/script.c:
* libguile/srfi-14.c:
* libguile/stacks.c:
* libguile/strings.c:
* libguile/throw.c:
* libguile/vm.c: Use scm_from_latin1_symboln to make symbols from string
literals, because they aren't in the user's locale -- they are in
ASCII, and we can optimize this case.
* libguile/vm-i-loader.c: Also use scm_from_latin1_symboln when loading
narrow symbols.
* libguile/eval.c (scm_c_primitive_eval):
* module/ice-9/eval.scm (primitive-eval): Rely on the expander to
produce a memoized expression. If the expression is already memoized,
just pass it through (the equivalent of the old "noexpand" hack).
* libguile/memoize.c (scm_init_memoize): Initialize `memoize-expression'
as the initial binding of `macroexpand'.
* libguile/modules.c (scm_module_transformer): Before modules are
booted, look for `macroexpand', not `%pre-modules-transformer'.
* module/ice-9/boot-9.scm: No more %pre-modules-transformer. Loading
psyntax extends `macroexpand'.
(make-module): `macroexpand' is the default transformer.
* module/ice-9/psyntax.scm: No more `noexpand'.
(top-level-eval-hook, local-eval-hook): Instead of annotating with
noexpand, memoize the expression before handing it to primitive-eval.
(macroexpand): No more noexpand hack -- in its place we have another
hack, to memoize the result when running in eval mode.
* module/ice-9/psyntax-pp.scm: Regenerated.
* libguile/modules.c: Consolidate all variables to the top of the file.
(scm_module_public_interface): Dispatch to Scheme.
(scm_post_boot_init_modules): Resolve module-public-interface.
* module/ice-9/boot-9.scm (module-public-interface): Implement in
Scheme.
* module/ice-9/boot-9.scm (make-record-type): Add an explanatory
comment.
(%print-module): Remove a hacky comment about redefinitions being
difficult, because now the module-printer is called by name from
module-type's printer.
(module-type): Define the module type, its constructor, predicate, and
accessors programmatically, at expansion time. Should reduce any
errors in transcription, between adding fields and adding accessors.
* libguile/modules.c (scm_lookup_closure_module): Move an explanatory
comment here from boot-9.scm.
* libguile/modules.c (scm_module_reverse_lookup): Type-check VARIABLE.
Don't traverse the `uses' list when MODULE is #f.
* test-suite/tests/modules.test ("foundations")["module-reverse-lookup
[pre-module-obarray]", "module-reverse-lookup [wrong-type-arg]"]: New
tests.
* libguile/modules.c (SCM_F_EVAL_CLOSURE_INTERFACE)
(SCM_EVAL_CLOSURE_INTERFACE_P, scm_standard_interface_eval_closure):
Fix to not use SCM_CELL macros.
* libguile/eval.c (scm_primitive_eval, scm_c_primitive_eval):
(scm_init_eval): Rework so that scm_primitive_eval always calls out to
the primitive-eval variable. The previous definition is the default
value, which is probably overridden by scm_init_eval_in_scheme.
* libguile/init.c (scm_i_init_guile): Move ports and load-path up, so we
can debug when initing eval. Call scm_init_eval_in_scheme. Awesome.
* libguile/load.h:
* libguile/load.c (scm_init_eval_in_scheme): New procedure, loads up
ice-9/eval.scm to replace the primitive-eval definition, if everything
is there and up-to-date.
* libguile/modules.c (scm_module_transformer): Export to Scheme, so it's
there for eval.go.
* module/ice-9/boot-9.scm: No need to define module-transformer.
* module/ice-9/eval.scm (capture-env): Only reference the-root-module if
modules are booted.
(primitive-eval): Inline a definition for identity. Throw a more
standard error for "wrong number of arguments".
* module/ice-9/psyntax.scm (chi-install-global): The macro binding for a
syncase macro is now a pair: the transformer, and the module that was
current when the transformer was installed. The latter is used for
hygiene purposes, replacing the use of procedure-module, which didn't
work with the interpreter's shared-code closures.
(chi-macro): Adapt for the binding being a pair, and get the hygiene
from the cdr.
(eval-local-transformer): Adapt to new form of macro bindings.
* module/ice-9/psyntax-pp.scm: Regenerated.
* .gitignore: Ignore eval.go.stamp.
* module/Makefile.am: Reorder for fastest serial compilation, now that
there are no ordering constraints. I did a number of experiments here
and this seems to be the best; but the bulk of the time is compiling
psyntax-pp.scm with eval.scm. Not so great.
* libguile/vm-engine.c (vm-engine): Throw a more standard error for
"wrong type to apply".
* test-suite/tests/gc.test ("gc"): Remove a hack that shouldn't affect
the new evaluator, and throw in another (gc) for good measure.
* test-suite/tests/goops.test ("defining classes"):
* test-suite/tests/hooks.test (proc1): We can't currently check what the
arity is of a closure made by eval.scm -- or more accurately all
closures have 0 required args and no rest args. So punt for now.
* test-suite/tests/syntax.test ("letrec"): The scheme evaluator can't
check that a variable is unbound, currently; perhaps the full "fixing
letrec" expansion could fix this. But barring that, punt.
* libguile/eval.c: So, ladies & gents, a new evaluator. It's similar to
the old one, in that we memoize and then evaluate, but in this
incarnation, memoization of an expression happens before evaluation,
not lazily as the expression is evaluated. This makes the evaluation
itself much cleaner, in addition to being threadsafe. In addition,
since this C evaluator will in the future just serve to bootstrap the
Scheme evaluator, we don't have to pay much concern for debugging
conveniences. So the environment is just a list of values, and the
memoizer pre-computes where it's going to find each individual value
in the environment.
Interface changes are commented below, with eval.h.
(scm_evaluator_traps): No need to reset the debug mode after rnning te
traps thing. But really, the whole traps system needs some love.
* libguile/memoize.h:
* libguile/memoize.c: New memoizer, which runs before evaluation,
checking all syntax before evaluation begins. Significantly, no
debugging information is left for lexical variables, which is not so
great for interactive debugging; perhaps we should change this to have
a var list in the future as per the classic interpreters. But it's
quite fast, and the resulting code is quite good. Also note that it
doesn't produce ilocs, memoized code is a smob whose type is in the
first word of the smob itself.
* libguile/eval.h (scm_sym_and, scm_sym_begin, scm_sym_case)
(scm_sym_cond, scm_sym_define, scm_sym_do, scm_sym_if, scm_sym_lambda)
(scm_sym_let, scm_sym_letstar, scm_sym_letrec, scm_sym_quote)
(scm_sym_quasiquote, scm_sym_unquote, scm_sym_uq_splicing, scm_sym_at)
(scm_sym_atat, scm_sym_atapply, scm_sym_atcall_cc)
(scm_sym_at_call_with_values, scm_sym_delay, scm_sym_eval_when)
(scm_sym_arrow, scm_sym_else, scm_sym_apply, scm_sym_set_x)
(scm_sym_args): Remove public declaration of these symbols.
(scm_ilookup, scm_lookupcar, scm_eval_car, scm_eval_body)
(scm_eval_args, scm_i_eval_x, scm_i_eval): Remove public declaration
of these functions.
(scm_ceval, scm_deval, scm_ceval_ptr): Remove declarations of these
deprecated functions.
(scm_i_print_iloc, scm_i_print_isym, scm_i_unmemocopy_expr)
(scm_i_unmemocopy_body): Remove declarations of these internal
functions.
(scm_primitive_eval_x, scm_eval_x): Redefine as macros for their less
destructive siblings.
* libguile/Makefile.am: Add memoize.[ch] to the build.
* libguile/debug.h (scm_debug_mode_p, scm_check_entry_p)
(scm_check_apply_p, scm_check_exit_p, scm_check_memoize_p)
(scm_debug_eframe_size): Remove these vars that were tied to the old
evaluator's execution model.
(SCM_RESET_DEBUG_MODE): Remove, no more need for this.
(SCM_MEMOIZEDP, SCM_MEMOIZED_EXP, SCM_MEMOIZED_ENV): Remove macros
referring to old memoized code representation.
(scm_local_eval, scm_procedure_environment, scm_memoized_environment)
(scm_make_memoized, scm_memoized_p): Remove functions operating on old
memoized code representation.
(scm_memcons, scm_mem_to_proc, scm_proc_to_mem): Remove debug-only
code for old evaluator.
* libguile/debug.c: Remove code to correspond with debug.h removals.
(scm_debug_options): No need to set the debug mode or frame limit
here, as we don't have C stack limits any more. Perhaps this is a bug,
but as long as we can compile eval.scm, we should be fine.
* libguile/init.c (scm_i_init_guile): Init memoize.c.
* libguile/modules.c (scm_top_level_env, scm_env_top_level)
(scm_env_module, scm_system_module_env_p): Remove these functions.
* libguile/print.c (iprin1): No more need to handle isyms. Adapt to new
form of interpreted procedures.
* libguile/procprop.c (scm_i_procedure_arity): Adapt to new form of
interpreted procedures.
* libguile/procs.c (scm_thunk_p): Adapt to new form of interpreted
procedures.
* libguile/procs.h (SCM_CLOSURE_FORMALS): Removed, this exists no more.
(SCM_CLOSURE_NUM_REQUIRED_ARGS, SCM_CLOSURE_HAS_REST_ARGS): New
accessors.
* libguile/srcprop.c (scm_source_properties, scm_source_property)
(scm_set_source_property_x): Remove special cases for memoized code.
* libguile/stacks.c (read_frame): Remove a source-property case for
interpreted code.
(NEXT_FRAME): Remove a case that I don't fully understand, that seems
to be designed to skip over apply frames. Will be obsolete in the
futures.
(read_frames): Default source value for interpreted frames to #f.
(narrow_stack): Don't pay attention to the system_module thing.
* libguile/tags.h: Remove isyms and ilocs. Whee!
* libguile/validate.h (SCM_VALIDATE_MEMOIZED): Fix to use the new
MEMOIZED_P formulation.
* module/ice-9/psyntax-pp.scm (do, quasiquote, case): Adapt for these no
longer being primitive macros.
* module/ice-9/boot-9.scm: Whitespace change, but just a poke to force a
rebuild due to and/or/cond/... not being primitives any more.
* module/ice-9/deprecated.scm (unmemoize-expr): Deprecate, it's
unmemoize-expression now.
* test-suite/tests/eval.test ("define set procedure-name"): XFAIL a
couple of tests here; I don't know what to do about them. I reckon the
expander should ensure that defined values are named.
* test-suite/tests/chars.test ("basic char handling"): Fix expected
exception when trying to apply a char.
* libguile/deprecated.h
* libguile/deprecated.c (SCM_ILOC00, SCM_IDINC, SCM_IDSTMSK)
(scm_s_expression, scm_s_test, scm_s_body, scm_s_bindings)
(scm_s_variable, scm_s_clauses, scm_s_formals, SCM_EVALIM2)
(SCM_EVALIM, SCM_XEVAL, SCM_XEVALCAR): Remove these macros and
constants, deprecated in 2003.
(scm_the_root_module): Undeprecate, it's actually a useful function,
that other parts of the code use.
* libguile/modules.h (scm_the_root_module): Undeprecated.
* libguile/modules.c (scm_the_root_module): Rename from
the_root_module. Use it in the rest of this file.
* libguile/modules.c (scm_module_lookup, scm_lookup): Throw to
'unbound-variable, like eval.i.c does.
* test-suite/tests/optargs.test: Add an optargs test. Run optargs tests
under both the VM and the interpreter.
* libguile/modules.c (scm_module_local_variable): Allow this to be called
before modules are booted with #f as the module.
* module/ice-9/boot-9.scm (module-define-keyword!)
(module-lookup-keyword, module-undefine-keyword!): Well, if syncase
forces us to allow the keyword bindings to be partitioned from value
bindings, let's go ahead and do that in boot-9 instead of in
psyntax. A step on the way to removing `install-global-transformer'.
(sc-chi): Remove.
* module/ice-9/psyntax.scm (put-global-definition-hook):
(remove-global-definition-hook, get-global-definition-hook): Use our
new module-* functions.
(sc-chi): Remove, no longer needed.
* module/ice-9/psyntax-pp.scm: Regenerated.
* libguile/modules.c (scm_module_transformer)
(scm_current_module_transformer): So, if the module system hasn't yet
booted, take the current transformer from a variable named
%pre-modules-transformer from the %pre-modules-obarray. This is a
prequel to booting syncase early in boot-9.
This reverts par of "Document the failure of `gc.test' wrt. unused modules."
(commit 328efeb9a6.)
* ice-9/boot-9.scm (set-module-eval-closure!): Don't set the `module' property
on CLOSURE.
* libguile/modules.c (scm_lookup_closure_module): Call `abort ()' to make it
clear that code that uses the `module' property no longer works. That code
is unused anyway.
* libguile/modules.h:
* libguile/modules.c:
* ice-9/boot-9.scm (module-public-interface): Move definition of
module-public-interface to C, where it is now available as
scm_module_public_interface ().
* libguile/modules.c (module-variable): If module is #f, access the
pre-modules-array. This is so that nested-ref can work before the
module system is booted, I think.
Of course all of these dependency lines during bootstrap are just to
make sure the system can be booted properly, either interpreted or
compiled, so there's no one right way: there are many ways that could
work.
* libguile/hashtab.c (scm_i_rehash): Return immediately if TABLE is weak.
(scm_hash_fn_create_handle_x): Explicitly mention that we don't support
weak alist vectors.
(scm_internal_hash_fold): Handle weak pairs within buckets.
* libguile/modules.c (scm_module_reverse_lookup): Handle weak alists
(currently, don't do anything if a NULL pair is met).
git-archimport-id: lcourtes@laas.fr--2005-libre/guile-core--boehm-gc--1.9--patch-16
(scm_current_module): Return the root module if `the-module' fluid
gives #f.
* standalone/Makefile.am: Add stanza for test-with-guile-module.
* standalone/test-with-guile-module.c: New test.
