details: http://hg.nginx.org/njs/rev/69300ba58603
branches:
changeset: 570:69300ba58603
user: Igor Sysoev <igor@sysoev.ru>
date: Tue Jul 24 19:50:02 2018 +0300
description:
Refactored trap infrastructure.

This change allows to introduce virtually unlimited number of traps.

diffstat:

njs/njs_array.c | 5 +-
njs/njs_date.c | 6 +-
njs/njs_math.c | 8 +-
njs/njs_object.c | 6 +-
njs/njs_string.c | 8 +-
njs/njs_vm.c | 162 ++++++++++++++++++++++++++++--------------------------
njs/njs_vm.h | 32 +++++++---
7 files changed, 126 insertions(+), 101 deletions(-)

diffs (658 lines):

diff -r 8960cef1cd5f -r 69300ba58603 njs/njs_array.c
--- a/njs/njs_array.c Tue Jul 24 19:50:02 2018 +0300
+++ b/njs/njs_array.c Tue Jul 24 19:50:02 2018 +0300
@@ -917,7 +917,7 @@ njs_array_prototype_join_continuation(nj
if (!njs_is_string(value)) {
njs_vm_trap_value(vm, value);

- return NJS_TRAP_STRING_ARG;
+ return njs_trap(vm, NJS_TRAP_STRING_ARG);
}
}

@@ -1952,7 +1952,8 @@ njs_array_string_sort(njs_vm_t *vm, njs_
for (i = 1; i < nargs; i++) {
if (!njs_is_string(&args[i])) {
njs_vm_trap_value(vm, &args[i]);
- return NJS_TRAP_STRING_ARG;
+
+ return njs_trap(vm, NJS_TRAP_STRING_ARG);
}
}

diff -r 8960cef1cd5f -r 69300ba58603 njs/njs_date.c
--- a/njs/njs_date.c Tue Jul 24 19:50:02 2018 +0300
+++ b/njs/njs_date.c Tue Jul 24 19:50:02 2018 +0300
@@ -90,7 +90,8 @@ njs_date_constructor(njs_vm_t *vm, njs_v
for (i = 1; i < n; i++) {
if (!njs_is_numeric(&args[i])) {
njs_vm_trap_value(vm, &args[i]);
- return NJS_TRAP_NUMBER_ARG;
+
+ return njs_trap(vm, NJS_TRAP_NUMBER_ARG);
}

num = args[i].data.u.number;
@@ -170,7 +171,8 @@ njs_date_utc(njs_vm_t *vm, njs_value_t *
for (i = 1; i < n; i++) {
if (!njs_is_numeric(&args[i])) {
njs_vm_trap_value(vm, &args[i]);
- return NJS_TRAP_NUMBER_ARG;
+
+ return njs_trap(vm, NJS_TRAP_NUMBER_ARG);
}

num = args[i].data.u.number;
diff -r 8960cef1cd5f -r 69300ba58603 njs/njs_math.c
--- a/njs/njs_math.c Tue Jul 24 19:50:02 2018 +0300
+++ b/njs/njs_math.c Tue Jul 24 19:50:02 2018 +0300
@@ -365,7 +365,7 @@ njs_object_math_hypot(njs_vm_t *vm, njs_
if (!njs_is_numeric(&args[i])) {
njs_vm_trap_value(vm, &args[i]);

- return NJS_TRAP_NUMBER_ARG;
+ return njs_trap(vm, NJS_TRAP_NUMBER_ARG);
}
}

@@ -504,7 +504,8 @@ njs_object_math_max(njs_vm_t *vm, njs_va
for (i = 1; i < nargs; i++) {
if (!njs_is_numeric(&args[i])) {
njs_vm_trap_value(vm, &args[i]);
- return NJS_TRAP_NUMBER_ARG;
+
+ return njs_trap(vm, NJS_TRAP_NUMBER_ARG);
}
}

@@ -535,7 +536,8 @@ njs_object_math_min(njs_vm_t *vm, njs_va
for (i = 1; i < nargs; i++) {
if (!njs_is_numeric(&args[i])) {
njs_vm_trap_value(vm, &args[i]);
- return NJS_TRAP_NUMBER_ARG;
+
+ return njs_trap(vm, NJS_TRAP_NUMBER_ARG);
}
}

diff -r 8960cef1cd5f -r 69300ba58603 njs/njs_object.c
--- a/njs/njs_object.c Tue Jul 24 19:50:02 2018 +0300
+++ b/njs/njs_object.c Tue Jul 24 19:50:02 2018 +0300
@@ -227,7 +227,7 @@ njs_object_property(njs_vm_t *vm, const
* NJS_STRING_VALUE property operation was applied to a string,
* NJS_ARRAY_VALUE object is array,
* NJS_EXTERNAL_VALUE object is external entity,
- * NJS_TRAP_PROPERTY the property trap must be called,
+ * NJS_TRAP the property trap must be called,
* NXT_ERROR exception has been thrown.
*/

@@ -275,7 +275,7 @@ njs_property_query(njs_vm_t *vm, njs_pro
}

} else {
- return NJS_TRAP_PROPERTY;
+ return njs_trap(vm, NJS_TRAP_PROPERTY);
}
}

@@ -359,7 +359,7 @@ njs_property_query(njs_vm_t *vm, njs_pro
return ret;
}

- return NJS_TRAP_PROPERTY;
+ return njs_trap(vm, NJS_TRAP_PROPERTY);
}


diff -r 8960cef1cd5f -r 69300ba58603 njs/njs_string.c
--- a/njs/njs_string.c Tue Jul 24 19:50:02 2018 +0300
+++ b/njs/njs_string.c Tue Jul 24 19:50:02 2018 +0300
@@ -842,7 +842,7 @@ njs_string_prototype_concat(njs_vm_t *vm
if (!njs_is_string(&args[i])) {
njs_vm_trap_value(vm, &args[i]);

- return NJS_TRAP_STRING_ARG;
+ return njs_trap(vm, NJS_TRAP_STRING_ARG);
}
}

@@ -1427,7 +1427,8 @@ njs_string_bytes_from_array(njs_vm_t *vm
for (i = 0; i < length; i++) {
if (!njs_is_numeric(&array->start[i])) {
njs_vm_trap_value(vm, &array->start[i]);
- return NJS_TRAP_NUMBER_ARG;
+
+ return njs_trap(vm, NJS_TRAP_NUMBER_ARG);
}
}

@@ -1659,7 +1660,8 @@ njs_string_from_char_code(njs_vm_t *vm,
for (i = 1; i < nargs; i++) {
if (!njs_is_numeric(&args[i])) {
njs_vm_trap_value(vm, &args[i]);
- return NJS_TRAP_NUMBER_ARG;
+
+ return njs_trap(vm, NJS_TRAP_NUMBER_ARG);
}
}

diff -r 8960cef1cd5f -r 69300ba58603 njs/njs_vm.c
--- a/njs/njs_vm.c Tue Jul 24 19:50:02 2018 +0300
+++ b/njs/njs_vm.c Tue Jul 24 19:50:02 2018 +0300
@@ -25,10 +25,10 @@ struct njs_property_next_s {

static njs_ret_t njs_method_private_copy(njs_vm_t *vm,
njs_property_query_t *pq);
-static nxt_noinline njs_ret_t njs_values_equal(const njs_value_t *val1,
- const njs_value_t *val2);
-static nxt_noinline njs_ret_t njs_values_compare(const njs_value_t *val1,
- const njs_value_t *val2);
+static nxt_noinline njs_ret_t njs_values_equal(njs_vm_t *vm,
+ const njs_value_t *val1, const njs_value_t *val2);
+static nxt_noinline njs_ret_t njs_values_compare(njs_vm_t *vm,
+ const njs_value_t *val1, const njs_value_t *val2);
static njs_ret_t njs_function_frame_create(njs_vm_t *vm, njs_value_t *value,
const njs_value_t *this, uintptr_t nargs, nxt_bool_t ctor);
static njs_object_t *njs_function_new_object(njs_vm_t *vm, njs_value_t *value);
@@ -41,9 +41,9 @@ static njs_native_frame_t *
static njs_ret_t njs_function_frame_free(njs_vm_t *vm,
njs_native_frame_t *frame);

-static void njs_vm_trap(njs_vm_t *vm, nxt_uint_t trap, njs_value_t *value1,
+static void njs_vm_trap(njs_vm_t *vm, njs_trap_t trap, njs_value_t *value1,
njs_value_t *value2);
-static void njs_vm_trap_argument(njs_vm_t *vm, nxt_uint_t trap);
+static void njs_vm_trap_argument(njs_vm_t *vm, njs_trap_t trap);
static njs_ret_t njs_vmcode_number_primitive(njs_vm_t *vm, njs_value_t *invld,
njs_value_t *narg);
static njs_ret_t njs_vmcode_string_primitive(njs_vm_t *vm, njs_value_t *invld,
@@ -105,6 +105,7 @@ njs_vmcode_interpreter(njs_vm_t *vm)
{
u_char *catch;
njs_ret_t ret;
+ njs_trap_t trap;
njs_value_t *retval, *value1, *value2;
njs_frame_t *frame;
njs_native_frame_t *previous;
@@ -169,31 +170,36 @@ start:
}
}

- switch (ret) {
-
- case NJS_TRAP_NUMBER:
- value2 = value1;
-
- /* Fall through. */
-
- case NJS_TRAP_NUMBERS:
- case NJS_TRAP_STRINGS:
- case NJS_TRAP_INCDEC:
- case NJS_TRAP_PROPERTY:
-
- njs_vm_trap(vm, ret - NJS_TRAP_BASE, value1, value2);
-
- goto start;
-
- case NJS_TRAP_NUMBER_ARG:
- case NJS_TRAP_STRING_ARG:
-
- njs_vm_trap_argument(vm, ret - NJS_TRAP_BASE);
-
- goto start;
-
- default:
- break;
+ if (ret == NJS_TRAP) {
+ trap = vm->trap;
+
+ switch (trap) {
+
+ case NJS_TRAP_NUMBER:
+ value2 = value1;
+
+ /* Fall through. */
+
+ case NJS_TRAP_NUMBERS:
+ case NJS_TRAP_STRINGS:
+ case NJS_TRAP_INCDEC:
+ case NJS_TRAP_PROPERTY:
+
+ njs_vm_trap(vm, trap, value1, value2);
+
+ goto start;
+
+ case NJS_TRAP_NUMBER_ARG:
+ case NJS_TRAP_STRING_ARG:
+
+ njs_vm_trap_argument(vm, trap);
+
+ goto start;
+
+ default:
+ ret = NXT_ERROR;
+ break;
+ }
}

if (ret == NXT_ERROR) {
@@ -593,7 +599,7 @@ njs_vmcode_property_get(njs_vm_t *vm, nj

return sizeof(njs_vmcode_prop_get_t);

- case NJS_TRAP_PROPERTY:
+ case NJS_TRAP:
case NXT_ERROR:
default:

@@ -715,7 +721,7 @@ njs_vmcode_property_set(njs_vm_t *vm, nj

return sizeof(njs_vmcode_prop_set_t);

- case NJS_TRAP_PROPERTY:
+ case NJS_TRAP:
case NXT_ERROR:
default:

@@ -799,7 +805,7 @@ njs_vmcode_property_in(njs_vm_t *vm, njs

break;

- case NJS_TRAP_PROPERTY:
+ case NJS_TRAP:
case NXT_ERROR:
default:

@@ -901,7 +907,7 @@ njs_vmcode_property_delete(njs_vm_t *vm,

break;

- case NJS_TRAP_PROPERTY:
+ case NJS_TRAP:
case NXT_ERROR:
default:

@@ -1130,7 +1136,7 @@ njs_vmcode_increment(njs_vm_t *vm, njs_v
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_INCDEC;
+ return njs_trap(vm, NJS_TRAP_INCDEC);
}


@@ -1150,7 +1156,7 @@ njs_vmcode_decrement(njs_vm_t *vm, njs_v
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_INCDEC;
+ return njs_trap(vm, NJS_TRAP_INCDEC);
}


@@ -1171,7 +1177,7 @@ njs_vmcode_post_increment(njs_vm_t *vm,
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_INCDEC;
+ return njs_trap(vm, NJS_TRAP_INCDEC);
}


@@ -1192,7 +1198,7 @@ njs_vmcode_post_decrement(njs_vm_t *vm,
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_INCDEC;
+ return njs_trap(vm, NJS_TRAP_INCDEC);
}


@@ -1276,7 +1282,7 @@ njs_vmcode_unary_plus(njs_vm_t *vm, njs_
return sizeof(njs_vmcode_2addr_t);
}

- return NJS_TRAP_NUMBER;
+ return njs_trap(vm, NJS_TRAP_NUMBER);
}


@@ -1288,7 +1294,7 @@ njs_vmcode_unary_negation(njs_vm_t *vm,
return sizeof(njs_vmcode_2addr_t);
}

- return NJS_TRAP_NUMBER;
+ return njs_trap(vm, NJS_TRAP_NUMBER);
}


@@ -1336,7 +1342,7 @@ njs_vmcode_addition(njs_vm_t *vm, njs_va
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_STRINGS;
+ return njs_trap(vm, NJS_TRAP_STRINGS);
}


@@ -1353,7 +1359,7 @@ njs_vmcode_substraction(njs_vm_t *vm, nj
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_NUMBERS;
+ return njs_trap(vm, NJS_TRAP_NUMBERS);
}


@@ -1370,7 +1376,7 @@ njs_vmcode_multiplication(njs_vm_t *vm,
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_NUMBERS;
+ return njs_trap(vm, NJS_TRAP_NUMBERS);
}


@@ -1404,7 +1410,7 @@ njs_vmcode_exponentiation(njs_vm_t *vm,
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_NUMBERS;
+ return njs_trap(vm, NJS_TRAP_NUMBERS);
}


@@ -1421,7 +1427,7 @@ njs_vmcode_division(njs_vm_t *vm, njs_va
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_NUMBERS;
+ return njs_trap(vm, NJS_TRAP_NUMBERS);
}


@@ -1438,7 +1444,7 @@ njs_vmcode_remainder(njs_vm_t *vm, njs_v
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_NUMBERS;
+ return njs_trap(vm, NJS_TRAP_NUMBERS);
}


@@ -1457,7 +1463,7 @@ njs_vmcode_left_shift(njs_vm_t *vm, njs_
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_NUMBERS;
+ return njs_trap(vm, NJS_TRAP_NUMBERS);
}


@@ -1476,7 +1482,7 @@ njs_vmcode_right_shift(njs_vm_t *vm, njs
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_NUMBERS;
+ return njs_trap(vm, NJS_TRAP_NUMBERS);
}


@@ -1496,7 +1502,7 @@ njs_vmcode_unsigned_right_shift(njs_vm_t
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_NUMBERS;
+ return njs_trap(vm, NJS_TRAP_NUMBERS);
}


@@ -1562,7 +1568,7 @@ njs_vmcode_bitwise_not(njs_vm_t *vm, njs
return sizeof(njs_vmcode_2addr_t);
}

- return NJS_TRAP_NUMBER;
+ return njs_trap(vm, NJS_TRAP_NUMBER);
}


@@ -1580,7 +1586,7 @@ njs_vmcode_bitwise_and(njs_vm_t *vm, njs
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_NUMBERS;
+ return njs_trap(vm, NJS_TRAP_NUMBERS);
}


@@ -1598,7 +1604,7 @@ njs_vmcode_bitwise_xor(njs_vm_t *vm, njs
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_NUMBERS;
+ return njs_trap(vm, NJS_TRAP_NUMBERS);
}


@@ -1616,7 +1622,7 @@ njs_vmcode_bitwise_or(njs_vm_t *vm, njs_
return sizeof(njs_vmcode_3addr_t);
}

- return NJS_TRAP_NUMBERS;
+ return njs_trap(vm, NJS_TRAP_NUMBERS);
}


@@ -1626,7 +1632,7 @@ njs_vmcode_equal(njs_vm_t *vm, njs_value
njs_ret_t ret;
const njs_value_t *retval;

- ret = njs_values_equal(val1, val2);
+ ret = njs_values_equal(vm, val1, val2);

if (nxt_fast_path(ret >= 0)) {

@@ -1646,7 +1652,7 @@ njs_vmcode_not_equal(njs_vm_t *vm, njs_v
njs_ret_t ret;
const njs_value_t *retval;

- ret = njs_values_equal(val1, val2);
+ ret = njs_values_equal(vm, val1, val2);

if (nxt_fast_path(ret >= 0)) {

@@ -1661,7 +1667,7 @@ njs_vmcode_not_equal(njs_vm_t *vm, njs_v


static nxt_noinline njs_ret_t
-njs_values_equal(const njs_value_t *val1, const njs_value_t *val2)
+njs_values_equal(njs_vm_t *vm, const njs_value_t *val1, const njs_value_t *val2)
{
/* Void and null are equal and not comparable with anything else. */
if (njs_is_null_or_void(val1)) {
@@ -1682,7 +1688,7 @@ njs_values_equal(const njs_value_t *val1
return (val1->data.u.object == val2->data.u.object);
}

- return NJS_TRAP_NUMBERS;
+ return njs_trap(vm, NJS_TRAP_NUMBERS);
}


@@ -1692,7 +1698,7 @@ njs_vmcode_less(njs_vm_t *vm, njs_value_
njs_ret_t ret;
const njs_value_t *retval;

- ret = njs_values_compare(val1, val2);
+ ret = njs_values_compare(vm, val1, val2);

if (nxt_fast_path(ret >= -1)) {

@@ -1726,7 +1732,7 @@ njs_vmcode_greater_or_equal(njs_vm_t *vm
njs_ret_t ret;
const njs_value_t *retval;

- ret = njs_values_compare(val1, val2);
+ ret = njs_values_compare(vm, val1, val2);

if (nxt_fast_path(ret >= -1)) {

@@ -1749,7 +1755,8 @@ njs_vmcode_greater_or_equal(njs_vm_t *vm
*/

static nxt_noinline njs_ret_t
-njs_values_compare(const njs_value_t *val1, const njs_value_t *val2)
+njs_values_compare(njs_vm_t *vm, const njs_value_t *val1,
+ const njs_value_t *val2)
{
if (nxt_fast_path(njs_is_numeric(val1) || njs_is_numeric(val2))) {

@@ -1764,14 +1771,14 @@ njs_values_compare(const njs_value_t *va
return (val1->data.u.number < val2->data.u.number);
}

- return NJS_TRAP_NUMBERS;
+ return njs_trap(vm, NJS_TRAP_NUMBERS);
}

if (nxt_fast_path(njs_is_string(val1) && njs_is_string(val2))) {
return (njs_string_cmp(val1, val2) < 0) ? 1 : 0;
}

- return NJS_TRAP_STRINGS;
+ return njs_trap(vm, NJS_TRAP_STRINGS);
}


@@ -2200,8 +2207,8 @@ njs_ret_t
njs_normalize_args(njs_vm_t *vm, njs_value_t *args, uint8_t *args_types,
nxt_uint_t nargs)
{
- njs_ret_t trap;
nxt_uint_t n;
+ njs_trap_t trap;

n = nxt_min(nargs, NJS_ARGS_TYPES_MAX);

@@ -2319,7 +2326,7 @@ trap:

njs_vm_trap_value(vm, args);

- return trap;
+ return njs_trap(vm, trap);

type_error:

@@ -2830,18 +2837,19 @@ static const njs_vmcode_1addr_t njs_tra


static const njs_vm_trap_t njs_vm_traps[] = {
- /* NJS_TRAP_STRING_ARG */ { &njs_trap_string_argument, 0 },
- /* NJS_TRAP_INTEGER_ARG */ { &njs_trap_number_argument, 0 },
- /* NJS_TRAP_PROPERTY */ { &njs_trap_strings[1], 0 },
- /* NJS_TRAP_STRINGS */ { &njs_trap_strings[0], 0 },
- /* NJS_TRAP_INCDEC */ { &njs_trap_numbers[1], 1 },
- /* NJS_TRAP_NUMBERS */ { &njs_trap_numbers[0], 0 },
- /* NJS_TRAP_NUMBER */ { &njs_trap_number[0], 0 },
+ /* NJS_TRAP_NUMBER */ { .code = &njs_trap_number[0] },
+ /* NJS_TRAP_NUMBERS */ { .code = &njs_trap_numbers[0] },
+ /* NJS_TRAP_INCDEC */ { .code = &njs_trap_numbers[1],
+ .reference = 1 },
+ /* NJS_TRAP_STRINGS */ { .code = &njs_trap_strings[0] },
+ /* NJS_TRAP_PROPERTY */ { .code = &njs_trap_strings[1] },
+ /* NJS_TRAP_NUMBER_ARG */ { .code = &njs_trap_number_argument },
+ /* NJS_TRAP_STRING_ARG */ { .code = &njs_trap_string_argument },
};


static void
-njs_vm_trap(njs_vm_t *vm, nxt_uint_t trap, njs_value_t *value1,
+njs_vm_trap(njs_vm_t *vm, njs_trap_t trap, njs_value_t *value1,
njs_value_t *value2)
{
njs_native_frame_t *frame;
@@ -2858,9 +2866,9 @@ njs_vm_trap(njs_vm_t *vm, nxt_uint_t tra
*/
njs_set_invalid(&frame->trap_scratch);
frame->trap_values[1] = *value2;
- frame->trap_reference = njs_vm_traps[trap].reference_value;
-
- if (njs_vm_traps[trap].reference_value) {
+ frame->trap_reference = njs_vm_traps[trap].reference;
+
+ if (njs_vm_traps[trap].reference) {
frame->trap_values[0].data.u.value = value1;

} else {
@@ -2873,7 +2881,7 @@ njs_vm_trap(njs_vm_t *vm, nxt_uint_t tra


static void
-njs_vm_trap_argument(njs_vm_t *vm, nxt_uint_t trap)
+njs_vm_trap_argument(njs_vm_t *vm, njs_trap_t trap)
{
njs_value_t *value;
njs_native_frame_t *frame;
diff -r 8960cef1cd5f -r 69300ba58603 njs/njs_vm.h
--- a/njs/njs_vm.h Tue Jul 24 19:50:02 2018 +0300
+++ b/njs/njs_vm.h Tue Jul 24 19:50:02 2018 +0300
@@ -27,22 +27,31 @@
* -3: not used;
* -4 (NJS_STOP/NXT_DONE): njs_vmcode_stop() has stopped execution,
* execution has completed successfully;
- * -5 .. -11: traps to convert objects to primitive values.
+ * -5 (NJS_TRAP) trap to convert objects to primitive values;
+ * -6 .. -11: not used.
*/

#define NJS_STOP NXT_DONE
+#define NJS_TRAP (-5)
+
+/* The last return value which preempts execution. */
+#define NJS_PREEMPT (-11)

/* Traps events. */
-#define NJS_TRAP_NUMBER (-5)
-#define NJS_TRAP_NUMBERS (-6)
-#define NJS_TRAP_INCDEC (-7)
-#define NJS_TRAP_STRINGS (-8)
-#define NJS_TRAP_PROPERTY (-9)
-#define NJS_TRAP_NUMBER_ARG (-10)
-#define NJS_TRAP_STRING_ARG (-11)
-#define NJS_TRAP_BASE NJS_TRAP_STRING_ARG
+typedef enum {
+ NJS_TRAP_NUMBER = 0,
+ NJS_TRAP_NUMBERS,
+ NJS_TRAP_INCDEC,
+ NJS_TRAP_STRINGS,
+ NJS_TRAP_PROPERTY,
+ NJS_TRAP_NUMBER_ARG,
+ NJS_TRAP_STRING_ARG,
+} njs_trap_t;

-#define NJS_PREEMPT (-11)
+
+#define njs_trap(vm, code) \
+ vm->trap = code, NJS_TRAP;
+

/*
* A user-defined function is prepared to run. This code is never
@@ -983,7 +992,7 @@ enum njs_function_e {

typedef struct {
const njs_vmcode_1addr_t *code;
- nxt_bool_t reference_value;
+ nxt_bool_t reference;
} njs_vm_trap_t;


@@ -1062,6 +1071,7 @@ struct njs_vm_s {
nxt_array_t *debug;
nxt_array_t *backtrace;

+ njs_trap_t trap:8;
uint8_t trailer; /* 1 bit */
uint8_t accumulative; /* 1 bit */
};
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