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-rw-r--r--struct.c12
-rw-r--r--txr.110
2 files changed, 22 insertions, 0 deletions
diff --git a/struct.c b/struct.c
index 7162dc3e..7b8c2f72 100644
--- a/struct.c
+++ b/struct.c
@@ -339,6 +339,7 @@ val make_struct(val type, val plist, struct args *args)
size_t size = offsetof(struct struct_inst, slot) + sizeof (val) * nslots;
struct struct_inst *si = coerce(struct struct_inst *, chk_malloc(size));
val sinst;
+ volatile val inited = nil;
if (args_more(args, 0) && !st->boactor) {
free(si);
@@ -357,6 +358,8 @@ val make_struct(val type, val plist, struct args *args)
si->type = type;
+ uw_simple_catch_begin;
+
call_initfun_chain(st, sinst);
for (; plist; plist = cddr(plist))
@@ -369,6 +372,15 @@ val make_struct(val type, val plist, struct args *args)
generic_funcall(st->boactor, args_copy);
}
+ inited = t;
+
+ uw_unwind {
+ if (!inited)
+ gc_call_finalizers(sinst);
+ }
+
+ uw_catch_end;
+
return sinst;
}
}
diff --git a/txr.1 b/txr.1
index 911eb2f8..b57f2391 100644
--- a/txr.1
+++ b/txr.1
@@ -18232,6 +18232,11 @@ overrides from the
.code new
macro, and lastly the "boa constructor" overrides.
+If any of the initializations abandon the evaluation of
+.code new
+by a non-local exit such as an exception throw, the object's
+finalizers, if any, are invoked.
+
.coNP Macro @ qref
.synb
.mets (qref < object-form
@@ -18681,6 +18686,11 @@ is processed, if not empty, and finally, the
.metn arg -s
are processed, if present, and passed to the boa constructor.
+If any of the initializations abandon the evaluation of
+.code make-struct
+by a non-local exit such as an exception throw, the object's
+finalizers, if any, are invoked.
+
.coNP Function @ copy-struct
.synb
.mets (copy-struct << struct-obj )