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Add ephemeron tables

Browse source 
* libguile/ephemerons.h:
* libguile/ephemerons.c (scm_c_make_ephemeron):
(scm_c_ephemeron_key):
(scm_c_ephemeron_value):
(scm_c_ephemeron_mark_dead_x):
(scm_c_ephemeron_swap_x):
(scm_c_ephemeron_next): Add C ephemeron API.
(scm_make_ephemeron, scm_ephemeron_key, scm_ephemeron_value)
(scm_ephemeron_mark_dead_x): Dispatch to helpers above.
(scm_ephemeron_swap_x, scm_ephemeron_mark_dead_x): New Scheme-exposed
functions.
(scm_c_make_ephemeron_table):
(scm_c_ephemeron_table_length):
(scm_c_ephemeron_table_ref):
(scm_c_ephemeron_table_push_x):
(scm_c_ephemeron_table_try_push_x): New C API for tables of ephemerons.
(scm_ephemeron_table_length):
(scm_ephemeron_table_ref):
(scm_ephemeron_table_push_x):
(scm_ephemeron_table_try_push_x): New Scheme-exposed API.
(scm_c_ephemeron_hash_table_refq):
(scm_c_ephemeron_hash_table_setq_x):
(scm_c_ephemeron_hash_table_copy): New C API for use by internal weak
table users (dynamic states, etc).

* module/ice-9/ephemerons.scm: Add new Scheme API.

* libguile/evalext.c (scm_self_evaluating_p):
* libguile/goops.c (scm_class_of, %goops-early-init):
* libguile/print.c (iprin1):
* module/oop/goops.scm:
* libguile/scm.h (scm_tc7_ephemeron_table): Add new tc7 for ephemeron
tables.

* test-suite/tests/ephemerons.test ("ephemeron tables"): Add tests.
This commit is contained in:
Andy Wingo 2025-05-09 11:52:42 +02:00
parent 67dca3a1f5
commit 134c3be452
9 changed files with 405 additions and 27 deletions
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3
libguile/print.c
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@ -767,6 +767,9 @@ iprin1 (SCM exp, SCM port, scm_print_state *pstate)
case scm_tc7_ephemeron:
scm_i_print_ephemeron (exp, port, pstate);
break;
case scm_tc7_ephemeron_table:
scm_i_print_ephemeron_table (exp, port, pstate);
break;
case scm_tc7_thread:
scm_i_print_thread (exp, port, pstate);
break;