mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-06-10 14:00:21 +02:00
* Added Jost Boekemeier's implementation of environments to guile.
* Added a test suite for (up to now only) leaf environments.
This commit is contained in:
Dirk Herrmann
parent
167d89cff9
commit
5d3e2388f3
7 changed files with 2903 additions and 4 deletions
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@ -1,3 +1,14 @@
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2000-08-25 Dirk Herrmann <D.Herrmann@tu-bs.de>
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* Makefile.am: Added all necessary environments.* files.
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* init.c: Include environments.h.
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(scm_boot_guile_1): Initialize the environments.
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* environments.[ch]: Added. Most of the credit for these files
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goes to Jost Boekemeier.
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2000-08-25 Mikael Djurfeldt <mdj@linnaeus.mit.edu>
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* procprop.c: #include "libguile/smob.h"; handle applicable smobs.
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@ -40,7 +40,8 @@ guile_LDFLAGS = @DLPREOPEN@
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libguile_la_SOURCES = \
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alist.c arbiters.c async.c backtrace.c boolean.c chars.c \
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continuations.c debug.c dynl.c dynwind.c eq.c error.c eval.c \
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continuations.c debug.c dynl.c dynwind.c environments.c eq.c \
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error.c eval.c \
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evalext.c feature.c fluids.c fports.c gc.c gdbint.c gh_data.c \
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gh_eval.c gh_funcs.c gh_init.c gh_io.c gh_list.c gh_predicates.c \
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gsubr.c guardians.c hash.c hashtab.c hooks.c init.c ioext.c \
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@ -54,7 +55,8 @@ libguile_la_SOURCES = \
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DOT_X_FILES = \
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alist.x arbiters.x \
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async.x backtrace.x boolean.x chars.x continuations.x debug.x \
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dynl.x dynwind.x eq.x error.x eval.x evalext.x feature.x \
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dynl.x dynwind.x environments.x eq.x error.x eval.x evalext.x \
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feature.x \
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fluids.x fports.x gc.x gsubr.x guardians.x hash.x hashtab.x \
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hooks.x init.x ioext.x iselect.x keywords.x lang.x list.x load.x \
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macros.x mallocs.x modules.x net_db.x numbers.x objects.x \
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@ -70,7 +72,8 @@ EXTRA_DOT_X_FILES = debug-malloc.x filesys.x net_db.x posix.x ramap.x \
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DOT_DOC_FILES = \
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alist.doc arbiters.doc async.doc backtrace.doc boolean.doc \
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chars.doc continuations.doc debug.doc dynl.doc dynwind.doc eq.doc \
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chars.doc continuations.doc debug.doc dynl.doc dynwind.doc \
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environments.doc eq.doc \
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error.doc eval.doc evalext.doc feature.doc fluids.doc fports.doc \
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gc.doc gsubr.doc guardians.doc hash.doc hashtab.doc hooks.doc init.doc \
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ioext.doc iselect.doc keywords.doc lang.doc list.doc load.doc \
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@ -115,7 +118,8 @@ pkginclude_HEADERS = gh.h
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modincludedir = $(includedir)/libguile
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modinclude_HEADERS = \
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__scm.h alist.h arbiters.h async.h backtrace.h boolean.h chars.h \
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continuations.h debug.h dynl.h dynwind.h eq.h error.h eval.h \
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continuations.h debug.h dynl.h dynwind.h environments.h eq.h \
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error.h eval.h \
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evalext.h feature.h filesys.h fports.h gc.h gdb_interface.h \
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gdbint.h gsubr.h guardians.h hash.h hashtab.h hooks.h init.h \
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ioext.h keywords.h lang.h list.h load.h macros.h mallocs.h \
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2305
libguile/environments.c
Normal file
2305
libguile/environments.c
Normal file
File diff suppressed because it is too large
Load diff
208
libguile/environments.h
Normal file
208
libguile/environments.h
Normal file
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@ -0,0 +1,208 @@
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/* classes: h_files */
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#ifndef ENVIRONMENTS_H
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#define ENVIRONMENTS_H
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/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* As a special exception, the Free Software Foundation gives permission
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* for additional uses of the text contained in its release of GUILE.
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*
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* The exception is that, if you link the GUILE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the GUILE library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the
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* Free Software Foundation under the name GUILE. If you copy
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* code from other Free Software Foundation releases into a copy of
|
||||
* GUILE, as the General Public License permits, the exception does
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||||
* not apply to the code that you add in this way. To avoid misleading
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||||
* anyone as to the status of such modified files, you must delete
|
||||
* this exception notice from them.
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||||
*
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* If you write modifications of your own for GUILE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice. */
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#include "libguile/__scm.h"
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/* The type for folding functions written in C. A function meant to be passed
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* to scm_c_environment_fold should have the type scm_environment_folder.
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*/
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typedef SCM (*scm_environment_folder) (SCM data, SCM sym, SCM val, SCM tail);
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/* The type for observer functions written in C. A function meant to be
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* passed to scm_c_environment_observe should have the type
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* scm_environment_observer.
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*/
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typedef void (*scm_environment_observer) (SCM env, SCM data);
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struct scm_environment_funcs {
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SCM (*ref) (SCM self, SCM symbol);
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SCM (*fold) (SCM self, scm_environment_folder proc, SCM data, SCM init);
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SCM (*define) (SCM self, SCM symbol, SCM value);
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SCM (*undefine) (SCM self, SCM symbol);
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SCM (*set) (SCM self, SCM symbol, SCM value);
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SCM (*cell) (SCM self, SCM symbol, int for_write);
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SCM (*observe) (SCM self, scm_environment_observer proc, SCM data, int weak_p);
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void (*unobserve) (SCM self, SCM token);
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SCM (*mark) (SCM self);
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scm_sizet (*free) (SCM self);
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int (*print) (SCM self, SCM port, scm_print_state *pstate);
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};
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#define SCM_ENVIRONMENT_SUCCESS SCM_BOOL_T
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#define SCM_ENVIRONMENT_BINDING_IMMUTABLE SCM_MAKINUM (0)
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#define SCM_ENVIRONMENT_LOCATION_IMMUTABLE SCM_MAKINUM (1)
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#define SCM_ENVIRONMENT_LOCATION_NO_CELL SCM_BOOL_F
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extern long scm_tc16_environment;
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#define SCM_ENVIRONMENT_P(x) \
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(!SCM_IMP (x) && SCM_CELL_TYPE (x) == scm_tc16_environment)
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#define SCM_ENVIRONMENT_FUNCS(env) \
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(*((struct scm_environment_funcs **) SCM_CELL_WORD_1 (env)))
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#define SCM_ENVIRONMENT_BOUND_P(env, symbol) \
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(!SCM_UNBNDP (SCM_ENVIRONMENT_REF (env, symbol)))
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#define SCM_ENVIRONMENT_REF(env, symbol) \
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((*(SCM_ENVIRONMENT_FUNCS (env)->ref)) (env, symbol))
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#define SCM_ENVIRONMENT_FOLD(env, proc, data, init) \
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((*(SCM_ENVIRONMENT_FUNCS (env)->fold)) (env, proc, data, init))
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#define SCM_ENVIRONMENT_DEFINE(env, symbol, value) \
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((*(SCM_ENVIRONMENT_FUNCS (env)->define)) (env, symbol, value))
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#define SCM_ENVIRONMENT_UNDEFINE(env, symbol) \
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((*(SCM_ENVIRONMENT_FUNCS (env)->undefine)) (env, symbol))
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#define SCM_ENVIRONMENT_SET(env, symbol, value) \
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((*(SCM_ENVIRONMENT_FUNCS (env)->set)) (env, symbol, value))
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#define SCM_ENVIRONMENT_CELL(env, symbol, for_write) \
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((*(SCM_ENVIRONMENT_FUNCS (env)->cell)) (env, symbol, for_write))
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#define SCM_ENVIRONMENT_OBSERVE(env, proc, data, weak_p) \
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((*(SCM_ENVIRONMENT_FUNCS (env)->observe)) (env, proc, data, weak_p))
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#define SCM_ENVIRONMENT_UNOBSERVE(env, token) \
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((*(SCM_ENVIRONMENT_FUNCS (env)->unobserve)) (env, token))
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extern long scm_tc16_observer;
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#define SCM_OBSERVER_P(x) \
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(!SCM_IMP (x) && (SCM_CELL_TYPE (x) == scm_tc16_observer))
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#define SCM_OBSERVER_ENVIRONMENT(x) \
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(SCM_CELL_OBJECT_1 (x))
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#define SCM_OBSERVER_DATA(x) \
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(SCM_CELL_OBJECT_2 (x))
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#define SCM_OBSERVER_PROC(x) \
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((scm_environment_observer) SCM_CELL_WORD_3 (x))
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extern void scm_error_environment_unbound (const char *, SCM, SCM) SCM_NORETURN;
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extern void scm_error_environment_immutable_binding (const char *, SCM, SCM) SCM_NORETURN;
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extern void scm_error_environment_immutable_location (const char *, SCM, SCM) SCM_NORETURN;
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extern SCM scm_make_environment (void *type);
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extern SCM scm_environment_p (SCM env);
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extern SCM scm_environment_bound_p (SCM env, SCM sym);
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extern SCM scm_environment_ref (SCM env, SCM sym);
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extern SCM scm_c_environment_ref (SCM env, SCM sym);
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extern SCM scm_environment_fold (SCM env, SCM proc, SCM init);
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extern SCM scm_c_environment_fold (SCM env, scm_environment_folder proc, SCM data, SCM init);
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extern SCM scm_environment_define (SCM env, SCM sym, SCM val);
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extern SCM scm_environment_undefine (SCM env, SCM sym);
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extern SCM scm_environment_set_x (SCM env, SCM sym, SCM val);
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extern SCM scm_environment_cell (SCM env, SCM sym, SCM for_write);
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extern SCM scm_c_environment_cell (SCM env, SCM sym, int for_write);
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extern SCM scm_environment_observe (SCM env, SCM proc);
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extern SCM scm_environment_observe_weak (SCM env, SCM proc);
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extern SCM scm_c_environment_observe (SCM env, scm_environment_observer proc, SCM data, int weak_p);
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extern SCM scm_environment_unobserve (SCM token);
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extern void scm_environments_prehistory (void);
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extern void scm_init_environments (void);
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extern void *scm_type_leaf_environment;
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#define SCM_LEAF_ENVIRONMENT_P(env) \
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(SCM_ENVIRONMENT_P (env) \
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&& SCM_ENVIRONMENT_FUNCS (env) == scm_type_leaf_environment)
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extern SCM scm_make_leaf_environment (void);
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extern SCM scm_leaf_environment_p (SCM env);
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extern void *scm_type_eval_environment;
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#define SCM_EVAL_ENVIRONMENT_P(env) \
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(SCM_ENVIRONMENT_P (env) \
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&& SCM_ENVIRONMENT_FUNCS (env) == scm_type_eval_environment)
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extern SCM scm_make_eval_environment (SCM local, SCM imported);
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extern SCM scm_eval_environment_p (SCM env);
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extern SCM scm_eval_environment_local (SCM env);
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extern SCM scm_eval_environment_set_local_x (SCM env, SCM local);
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extern SCM scm_eval_environment_imported (SCM env);
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extern SCM scm_eval_environment_set_imported_x (SCM env, SCM imported);
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extern void *scm_type_import_environment;
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#define SCM_IMPORT_ENVIRONMENT_P(env) \
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(SCM_ENVIRONMENT_FUNCS (env) == scm_type_import_environment)
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extern SCM scm_make_import_environment (SCM imports, SCM conflict_proc);
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extern SCM scm_import_environment_p (SCM env);
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extern SCM scm_import_environment_imports (SCM env);
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extern SCM scm_import_environment_set_imports_x (SCM env, SCM imports);
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extern void *scm_type_export_environment;
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#define SCM_EXPORT_ENVIRONMENT_P(env) \
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(SCM_ENVIRONMENT_FUNCS (env) == scm_type_export_environment)
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extern SCM scm_make_export_environment (SCM private, SCM signature);
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extern SCM scm_export_environment_p (SCM env);
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extern SCM scm_export_environment_private (SCM env);
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extern SCM scm_export_environment_set_private_x (SCM env, SCM private);
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extern SCM scm_export_environment_signature (SCM env);
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extern SCM scm_export_environment_set_signature_x (SCM env, SCM signature);
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#endif
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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@ -68,6 +68,7 @@
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#endif
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#include "libguile/dynl.h"
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#include "libguile/dynwind.h"
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#include "libguile/environments.h"
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#include "libguile/eq.h"
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#include "libguile/error.h"
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#include "libguile/eval.h"
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@ -490,12 +491,14 @@ scm_boot_guile_1 (SCM_STACKITEM *base, struct main_func_closure *closure)
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scm_struct_prehistory (); /* Must come after scm_init_storage */
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scm_weaks_prehistory (); /* Must come after scm_init_storage */
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scm_init_subr_table ();
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scm_environments_prehistory (); /* create the root environment */
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scm_init_root ();
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#ifdef USE_THREADS
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scm_init_threads (base);
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#endif
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start_stack (base);
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scm_init_gsubr ();
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scm_init_environments ();
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scm_init_feature ();
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scm_init_alist ();
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scm_init_arbiters ();
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@ -1,3 +1,7 @@
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2000-08-25 Dirk Herrmann <D.Herrmann@tu-bs.de>
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* tests/environments.test: Added.
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2000-08-21 Dirk Herrmann <D.Herrmann@tu-bs.de>
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* lib.scm (pass-if, expect-fail): Generalized to allow a sequence
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|
|
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364
test-suite/tests/environments.test
Normal file
364
test-suite/tests/environments.test
Normal file
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@ -0,0 +1,364 @@
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;;;; environments.test -*- scheme -*-
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||||
;;;; Copyright (C) 2000 Free Software Foundation, Inc.
|
||||
;;;;
|
||||
;;;; This program is free software; you can redistribute it and/or modify
|
||||
;;;; it under the terms of the GNU General Public License as published by
|
||||
;;;; the Free Software Foundation; either version 2, or (at your option)
|
||||
;;;; any later version.
|
||||
;;;;
|
||||
;;;; This program is distributed in the hope that it will be useful,
|
||||
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
;;;; GNU General Public License for more details.
|
||||
;;;;
|
||||
;;;; You should have received a copy of the GNU General Public License
|
||||
;;;; along with this software; see the file COPYING. If not, write to
|
||||
;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
|
||||
;;;; Boston, MA 02111-1307 USA
|
||||
;;;;
|
||||
;;;; As a special exception, the Free Software Foundation gives permission
|
||||
;;;; for additional uses of the text contained in its release of GUILE.
|
||||
;;;;
|
||||
;;;; The exception is that, if you link the GUILE library with other files
|
||||
;;;; to produce an executable, this does not by itself cause the
|
||||
;;;; resulting executable to be covered by the GNU General Public License.
|
||||
;;;; Your use of that executable is in no way restricted on account of
|
||||
;;;; linking the GUILE library code into it.
|
||||
;;;;
|
||||
;;;; This exception does not however invalidate any other reasons why
|
||||
;;;; the executable file might be covered by the GNU General Public License.
|
||||
;;;;
|
||||
;;;; This exception applies only to the code released by the
|
||||
;;;; Free Software Foundation under the name GUILE. If you copy
|
||||
;;;; code from other Free Software Foundation releases into a copy of
|
||||
;;;; GUILE, as the General Public License permits, the exception does
|
||||
;;;; not apply to the code that you add in this way. To avoid misleading
|
||||
;;;; anyone as to the status of such modified files, you must delete
|
||||
;;;; this exception notice from them.
|
||||
;;;;
|
||||
;;;; If you write modifications of your own for GUILE, it is your choice
|
||||
;;;; whether to permit this exception to apply to your modifications.
|
||||
;;;; If you do not wish that, delete this exception notice.
|
||||
|
||||
(use-modules (ice-9 documentation))
|
||||
|
||||
|
||||
;;;
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||||
;;; miscellaneous
|
||||
;;;
|
||||
|
||||
|
||||
(define (documented? object)
|
||||
(object-documentation object))
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||||
|
||||
(define (make-adder)
|
||||
(let* ((counter 0))
|
||||
(lambda increment
|
||||
(if (not (null? increment))
|
||||
(set! counter (+ counter (car increment))))
|
||||
counter)))
|
||||
|
||||
(define (folder sym val res)
|
||||
(cons (cons sym val) res))
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||||
|
||||
|
||||
;;;
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||||
;;; leaf-environments
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||||
;;;
|
||||
|
||||
(with-test-prefix "leaf-environments"
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||||
|
||||
(with-test-prefix "leaf-environment?"
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||||
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||||
(pass-if "documented?"
|
||||
(documented? leaf-environment?))
|
||||
|
||||
(pass-if "non-environment-object"
|
||||
(not (leaf-environment? #f))))
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||||
|
||||
|
||||
(with-test-prefix "make-leaf-environment"
|
||||
|
||||
(pass-if "documented?"
|
||||
(documented? make-leaf-environment))
|
||||
|
||||
(pass-if "produces an environment"
|
||||
(environment? (make-leaf-environment)))
|
||||
|
||||
(pass-if "produces a leaf-environment"
|
||||
(leaf-environment? (make-leaf-environment)))
|
||||
|
||||
(pass-if "produces always a new environment"
|
||||
(not (eq? (make-leaf-environment) (make-leaf-environment)))))
|
||||
|
||||
|
||||
(with-test-prefix "bound, define, ref, set!, cell"
|
||||
|
||||
(let* ((env (make-leaf-environment))
|
||||
(ctr (make-adder)))
|
||||
|
||||
(pass-if "unbound by default"
|
||||
(and (not (environment-bound? env 'a))
|
||||
(not (environment-bound? env 'b))
|
||||
(not (environment-bound? env 'c))))
|
||||
|
||||
(pass-if "bound after define"
|
||||
(environment-define env 'a (ctr 1))
|
||||
(environment-bound? env 'a))
|
||||
|
||||
(pass-if "ref defined"
|
||||
(and (begin
|
||||
(environment-define env 'a (ctr 1))
|
||||
(eq? (environment-ref env 'a) (ctr)))
|
||||
(begin
|
||||
(environment-define env 'a (ctr 1))
|
||||
(eq? (environment-ref env 'a) (ctr)))))
|
||||
|
||||
(pass-if "set! defined"
|
||||
(and (begin
|
||||
(environment-set! env 'a (ctr 1))
|
||||
(eq? (environment-ref env 'a) (ctr)))
|
||||
(begin
|
||||
(environment-set! env 'a (ctr 1))
|
||||
(eq? (environment-ref env 'a) (ctr)))))
|
||||
|
||||
(pass-if "read-only cell"
|
||||
(let* ((cell (environment-cell env 'a #f)))
|
||||
(and (begin
|
||||
(environment-set! env 'a (ctr 1))
|
||||
(eq? (cdr cell) (ctr))))))
|
||||
|
||||
(pass-if "read-only cell rebound after define"
|
||||
(let* ((cell (environment-cell env 'a #f)))
|
||||
(environment-define env 'a (ctr 1))
|
||||
(not (eq? (environment-cell env 'a #f) cell))))
|
||||
|
||||
(pass-if "writable cell"
|
||||
(let* ((readable (environment-cell env 'a #f))
|
||||
(writable (environment-cell env 'a #t)))
|
||||
(and (eq? readable writable)
|
||||
(begin
|
||||
(environment-set! env 'a (ctr 1))
|
||||
(eq? (cdr writable) (ctr)))
|
||||
(begin
|
||||
(set-cdr! writable (ctr 1))
|
||||
(eq? (environment-ref env 'a) (ctr)))
|
||||
(begin
|
||||
(set-cdr! (environment-cell env 'a #t) (ctr 1))
|
||||
(eq? (cdr writable) (ctr))))))
|
||||
|
||||
(pass-if "writable cell rebound after define"
|
||||
(let* ((cell (environment-cell env 'a #t)))
|
||||
(environment-define env 'a (ctr 1))
|
||||
(not (eq? (environment-cell env 'a #t) cell))))
|
||||
|
||||
(pass-if "referencing undefined"
|
||||
(catch #t
|
||||
(lambda ()
|
||||
(environment-ref env 'b)
|
||||
#f)
|
||||
(lambda args
|
||||
#t)))
|
||||
|
||||
(pass-if "set!ing undefined"
|
||||
(catch #t
|
||||
(lambda ()
|
||||
(environment-set! env 'b)
|
||||
#f)
|
||||
(lambda args
|
||||
#t)))
|
||||
|
||||
(pass-if "readable cell from undefined"
|
||||
(catch #t
|
||||
(lambda ()
|
||||
(environment-cell env 'b #f)
|
||||
#f)
|
||||
(lambda args
|
||||
#t)))
|
||||
|
||||
(pass-if "writable cell from undefined"
|
||||
(catch #t
|
||||
(lambda ()
|
||||
(environment-cell env 'b #t)
|
||||
#f)
|
||||
(lambda args
|
||||
#t)))))
|
||||
|
||||
|
||||
(with-test-prefix "undefine"
|
||||
|
||||
(let* ((env (make-leaf-environment)))
|
||||
|
||||
(pass-if "undefine defined"
|
||||
(environment-define env 'a 1)
|
||||
(and (environment-bound? env 'a)
|
||||
(begin
|
||||
(environment-undefine env 'a)
|
||||
(not (environment-bound? env 'a)))))
|
||||
|
||||
(pass-if "undefine undefined"
|
||||
(and (not (environment-bound? env 'a))
|
||||
(begin
|
||||
(environment-undefine env 'a)
|
||||
(not (environment-bound? env 'a)))))))
|
||||
|
||||
|
||||
(with-test-prefix "fold"
|
||||
|
||||
(let* ((env (make-leaf-environment))
|
||||
(ctr (make-adder)))
|
||||
|
||||
(pass-if "fold empty"
|
||||
(eq? 'success (environment-fold env folder 'success)))
|
||||
|
||||
(pass-if "after define"
|
||||
(environment-define env 'a (ctr 1))
|
||||
(equal? `((a . ,(ctr))) (environment-fold env folder '())))
|
||||
|
||||
(pass-if "after undefine"
|
||||
(environment-undefine env 'a)
|
||||
(eq? 'success (environment-fold env folder 'success)))
|
||||
|
||||
(pass-if "after two defines"
|
||||
(let* ((i (ctr 1))
|
||||
(j (+ i 1)))
|
||||
(environment-define env 'a i)
|
||||
(environment-define env 'b j)
|
||||
(let ((folded (environment-fold env folder '())))
|
||||
(or (equal? folded `((a . ,i) (b . ,j)))
|
||||
(equal? folded `((b . ,j) (a . ,i)))))))
|
||||
|
||||
(pass-if "after set!"
|
||||
(let* ((i (environment-ref env 'a)))
|
||||
(environment-set! env 'b i)
|
||||
(let ((folded (environment-fold env folder '())))
|
||||
(or (equal? folded `((a . ,i) (b . ,i)))
|
||||
(equal? folded `((b . ,i) (a . ,i)))))))))
|
||||
|
||||
|
||||
(with-test-prefix "observe"
|
||||
|
||||
(let* ((env (make-leaf-environment))
|
||||
(tag #f)
|
||||
(func (lambda (env) (set! tag (not tag))))
|
||||
(observer #f))
|
||||
|
||||
(pass-if "observe unobserved"
|
||||
(set! observer (environment-observe env func))
|
||||
#t)
|
||||
|
||||
(pass-if "define undefined"
|
||||
(set! tag #f)
|
||||
(environment-define env 'a 1)
|
||||
tag)
|
||||
|
||||
(pass-if "define defined"
|
||||
(set! tag #f)
|
||||
(environment-define env 'a 1)
|
||||
tag)
|
||||
|
||||
(pass-if "set! defined"
|
||||
(set! tag #t)
|
||||
(environment-set! env 'a 1)
|
||||
tag)
|
||||
|
||||
(pass-if "undefine defined"
|
||||
(set! tag #f)
|
||||
(environment-undefine env 'a)
|
||||
tag)
|
||||
|
||||
(pass-if "undefine undefined"
|
||||
(set! tag #t)
|
||||
(environment-undefine env 'a)
|
||||
tag)
|
||||
|
||||
(pass-if "unobserve observed"
|
||||
(set! tag #t)
|
||||
(environment-unobserve observer)
|
||||
(environment-define env 'a 1)
|
||||
tag)
|
||||
|
||||
(pass-if "unobserve unobserved"
|
||||
(environment-unobserve observer)
|
||||
#t)))
|
||||
|
||||
|
||||
(with-test-prefix "observe-weak"
|
||||
|
||||
(let* ((env (make-leaf-environment))
|
||||
(tag #f)
|
||||
(func (lambda (env) (set! tag (not tag))))
|
||||
(observer #f))
|
||||
|
||||
(pass-if "weak-observe unobserved"
|
||||
(set! observer (environment-observe-weak env func))
|
||||
#t)
|
||||
|
||||
(pass-if "define undefined"
|
||||
(set! tag #f)
|
||||
(environment-define env 'a 1)
|
||||
tag)
|
||||
|
||||
(pass-if "define defined"
|
||||
(set! tag #f)
|
||||
(environment-define env 'a 1)
|
||||
tag)
|
||||
|
||||
(pass-if "set! defined"
|
||||
(set! tag #t)
|
||||
(environment-set! env 'a 1)
|
||||
tag)
|
||||
|
||||
(pass-if "undefine defined"
|
||||
(set! tag #f)
|
||||
(environment-undefine env 'a)
|
||||
tag)
|
||||
|
||||
(pass-if "undefine undefined"
|
||||
(set! tag #t)
|
||||
(environment-undefine env 'a)
|
||||
tag)
|
||||
|
||||
(pass-if "unobserve observed"
|
||||
(set! tag #t)
|
||||
(environment-unobserve observer)
|
||||
(environment-define env 'a 1)
|
||||
tag)
|
||||
|
||||
(pass-if "unobserve unobserved"
|
||||
(environment-unobserve observer)
|
||||
#t)
|
||||
|
||||
(pass-if "weak observer gets collected"
|
||||
(gc)
|
||||
(environment-observe-weak env func)
|
||||
(set! tag #f)
|
||||
(environment-define env 'a 1)
|
||||
(and tag
|
||||
(begin
|
||||
(gc)
|
||||
(environment-define env 'a 1)
|
||||
tag)))))
|
||||
|
||||
|
||||
(with-test-prefix "observer-errors"
|
||||
|
||||
(let* ((env (make-leaf-environment))
|
||||
(tag-1 #f)
|
||||
(tag-2 #f)
|
||||
(func-1 (lambda (env)
|
||||
(set! tag-1 (not tag-1))
|
||||
(error)))
|
||||
(func-2 (lambda (env)
|
||||
(set! tag-2 (not tag-2))
|
||||
(error))))
|
||||
|
||||
(pass-if "update continues after error"
|
||||
(environment-observe env func-1)
|
||||
(environment-observe env func-2)
|
||||
(catch #t
|
||||
(lambda ()
|
||||
(environment-define env 'a 1)
|
||||
#f)
|
||||
(lambda args
|
||||
(and tag-1 tag-2)))))))
|
||||
Loading…
Add table
Add a link
Reference in a new issue