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[njs] Added njs_lvalue_arg() macro.

Alexander Borisov
October 28, 2019 09:12AM
details: https://hg.nginx.org/njs/rev/c43ebb4722fc
branches:
changeset: 1203:c43ebb4722fc
user: Alexander Borisov <alexander.borisov@nginx.com>
date: Mon Oct 28 16:10:17 2019 +0300
description:
Added njs_lvalue_arg() macro.

diffstat:

src/njs.h | 5 +++-
src/njs_json.c | 15 ++++---------
src/njs_object.c | 15 ++++---------
src/njs_regexp.c | 30 +++++++++------------------
src/njs_string.c | 59 ++++++++++++++++++-------------------------------------
5 files changed, 43 insertions(+), 81 deletions(-)

diffs (274 lines):

diff -r 7e7d0dac4572 -r c43ebb4722fc src/njs.h
--- a/src/njs.h Fri Oct 25 16:20:37 2019 +0300
+++ b/src/njs.h Mon Oct 28 16:10:17 2019 +0300
@@ -51,10 +51,13 @@ extern const njs_value_t njs_
: (njs_value_t *) &njs_value_undefined)

#define njs_value_assign(dst, src) \
- *((njs_opaque_value_t *) dst) = *((njs_opaque_value_t *) src);
+ *((njs_opaque_value_t *) dst) = *((njs_opaque_value_t *) src)

#define njs_value_arg(val) ((njs_value_t *) val)

+#define njs_lvalue_arg(lvalue, args, nargs, n) \
+ ((n < nargs) ? njs_argument(args, n) \
+ : (njs_value_assign(lvalue, &njs_value_undefined), lvalue))

#define njs_vm_error(vm, fmt, ...) \
njs_vm_value_error_set(vm, njs_vm_retval(vm), fmt, ##__VA_ARGS__)
diff -r 7e7d0dac4572 -r c43ebb4722fc src/njs_json.c
--- a/src/njs_json.c Fri Oct 25 16:20:37 2019 +0300
+++ b/src/njs_json.c Mon Oct 28 16:10:17 2019 +0300
@@ -147,7 +147,7 @@ njs_json_parse(njs_vm_t *vm, njs_value_t
njs_index_t unused)
{
njs_int_t ret;
- njs_value_t *text, *value, *wrapper;
+ njs_value_t *text, *value, *wrapper, lvalue;
const u_char *p, *end;
njs_json_parse_t *parse, json_parse;
const njs_value_t *reviver;
@@ -162,17 +162,12 @@ njs_json_parse(njs_vm_t *vm, njs_value_t
return NJS_ERROR;
}

- text = njs_arg(args, nargs, 1);
+ text = njs_lvalue_arg(&lvalue, args, nargs, 1);

if (njs_slow_path(!njs_is_string(text))) {
- if (njs_is_undefined(text)) {
- text = njs_value_arg(&njs_string_undefined);
-
- } else {
- ret = njs_value_to_string(vm, text, text);
- if (njs_slow_path(ret != NJS_OK)) {
- return ret;
- }
+ ret = njs_value_to_string(vm, text, text);
+ if (njs_slow_path(ret != NJS_OK)) {
+ return ret;
}
}

diff -r 7e7d0dac4572 -r c43ebb4722fc src/njs_object.c
--- a/src/njs_object.c Fri Oct 25 16:20:37 2019 +0300
+++ b/src/njs_object.c Mon Oct 28 16:10:17 2019 +0300
@@ -1089,7 +1089,7 @@ njs_object_define_property(njs_vm_t *vm,
njs_index_t unused)
{
njs_int_t ret;
- njs_value_t *value, *name, *desc;
+ njs_value_t *value, *name, *desc, lvalue;

if (!njs_is_object(njs_arg(args, nargs, 1))) {
njs_type_error(vm, "cannot convert %s argument to object",
@@ -1111,17 +1111,12 @@ njs_object_define_property(njs_vm_t *vm,
return NJS_ERROR;
}

- name = njs_arg(args, nargs, 2);
+ name = njs_lvalue_arg(&lvalue, args, nargs, 2);

if (njs_slow_path(!njs_is_string(name))) {
- if (njs_is_undefined(name)) {
- name = njs_value_arg(&njs_string_undefined);
-
- } else {
- ret = njs_value_to_string(vm, name, name);
- if (njs_slow_path(ret != NJS_OK)) {
- return ret;
- }
+ ret = njs_value_to_string(vm, name, name);
+ if (njs_slow_path(ret != NJS_OK)) {
+ return ret;
}
}

diff -r 7e7d0dac4572 -r c43ebb4722fc src/njs_regexp.c
--- a/src/njs_regexp.c Fri Oct 25 16:20:37 2019 +0300
+++ b/src/njs_regexp.c Mon Oct 28 16:10:17 2019 +0300
@@ -845,7 +845,7 @@ njs_regexp_prototype_test(njs_vm_t *vm,
njs_int_t ret;
njs_uint_t n;
njs_regex_t *regex;
- njs_value_t *value;
+ njs_value_t *value, lvalue;
const njs_value_t *retval;
njs_string_prop_t string;
njs_regexp_pattern_t *pattern;
@@ -858,17 +858,12 @@ njs_regexp_prototype_test(njs_vm_t *vm,

retval = &njs_value_false;

- value = njs_arg(args, nargs, 1);
+ value = njs_lvalue_arg(&lvalue, args, nargs, 1);

if (!njs_is_string(value)) {
- if (njs_is_undefined(value)) {
- value = njs_value_arg(&njs_string_undefined);
-
- } else {
- ret = njs_value_to_string(vm, value, value);
- if (njs_slow_path(ret != NJS_OK)) {
- return ret;
- }
+ ret = njs_value_to_string(vm, value, value);
+ if (njs_slow_path(ret != NJS_OK)) {
+ return ret;
}
}

@@ -921,7 +916,7 @@ njs_regexp_prototype_exec(njs_vm_t *vm,
{
njs_int_t ret;
njs_utf8_t utf8;
- njs_value_t *value;
+ njs_value_t *value, lvalue;
njs_regexp_t *regexp;
njs_string_prop_t string;
njs_regexp_utf8_t type;
@@ -933,17 +928,12 @@ njs_regexp_prototype_exec(njs_vm_t *vm,
return NJS_ERROR;
}

- value = njs_arg(args, nargs, 1);
+ value = njs_lvalue_arg(&lvalue, args, nargs, 1);

if (!njs_is_string(value)) {
- if (njs_is_undefined(value)) {
- value = njs_value_arg(&njs_string_undefined);
-
- } else {
- ret = njs_value_to_string(vm, value, value);
- if (njs_slow_path(ret != NJS_OK)) {
- return ret;
- }
+ ret = njs_value_to_string(vm, value, value);
+ if (njs_slow_path(ret != NJS_OK)) {
+ return ret;
}
}

diff -r 7e7d0dac4572 -r c43ebb4722fc src/njs_string.c
--- a/src/njs_string.c Fri Oct 25 16:20:37 2019 +0300
+++ b/src/njs_string.c Mon Oct 28 16:10:17 2019 +0300
@@ -2065,9 +2065,8 @@ njs_string_prototype_last_index_of(njs_v
double pos;
ssize_t index, start, length, search_length;
njs_int_t ret;
- njs_value_t *value;
+ njs_value_t *value, *search_string, lvalue;
const u_char *p, *end;
- const njs_value_t *search_string;
njs_string_prop_t string, search;

ret = njs_string_object_validate(vm, njs_arg(args, nargs, 0));
@@ -2079,18 +2078,12 @@ njs_string_prototype_last_index_of(njs_v

length = njs_string_prop(&string, njs_argument(args, 0));

- search_string = njs_arg(args, nargs, 1);
+ search_string = njs_lvalue_arg(&lvalue, args, nargs, 1);

if (njs_slow_path(!njs_is_string(search_string))) {
- if (njs_is_undefined(search_string)) {
- search_string = &njs_string_undefined;
-
- } else {
- ret = njs_value_to_string(vm, njs_value_arg(search_string),
- njs_value_arg(search_string));
- if (njs_slow_path(ret != NJS_OK)) {
- return ret;
- }
+ ret = njs_value_to_string(vm, search_string, search_string);
+ if (njs_slow_path(ret != NJS_OK)) {
+ return ret;
}
}

@@ -2301,7 +2294,7 @@ njs_string_starts_or_ends_with(njs_vm_t
{
int64_t index, length, search_length;
njs_int_t ret;
- njs_value_t *value;
+ njs_value_t *value, lvalue;
const u_char *p, *end;
const njs_value_t *retval;
njs_string_prop_t string, search;
@@ -2313,17 +2306,12 @@ njs_string_starts_or_ends_with(njs_vm_t
return ret;
}

- value = njs_arg(args, nargs, 1);
+ value = njs_lvalue_arg(&lvalue, args, nargs, 1);

if (njs_slow_path(!njs_is_string(value))) {
- if (njs_is_undefined(value)) {
- value = njs_value_arg(&njs_string_undefined);
-
- } else {
- ret = njs_value_to_string(vm, value, value);
- if (njs_slow_path(ret != NJS_OK)) {
- return ret;
- }
+ ret = njs_value_to_string(vm, value, value);
+ if (njs_slow_path(ret != NJS_OK)) {
+ return ret;
}
}

@@ -3478,6 +3466,7 @@ njs_string_prototype_replace(njs_vm_t *v
njs_int_t ret;
njs_uint_t ncaptures;
njs_value_t *this, *search, *replace;
+ njs_value_t search_lvalue, replace_lvalue;
njs_regex_t *regex;
njs_string_prop_t string;
njs_string_replace_t *r, string_replace;
@@ -3493,8 +3482,8 @@ njs_string_prototype_replace(njs_vm_t *v
goto original;
}

- search = njs_arg(args, nargs, 1);
- replace = njs_arg(args, nargs, 2);
+ search = njs_lvalue_arg(&search_lvalue, args, nargs, 1);
+ replace = njs_lvalue_arg(&replace_lvalue, args, nargs, 2);

(void) njs_string_prop(&string, this);

@@ -3530,14 +3519,9 @@ njs_string_prototype_replace(njs_vm_t *v
ncaptures = 1;

if (!njs_is_string(search)) {
- if (njs_is_undefined(search)) {
- search = njs_value_arg(&njs_string_undefined);
-
- } else {
- ret = njs_value_to_string(vm, search, search);
- if (njs_slow_path(ret != NJS_OK)) {
- return ret;
- }
+ ret = njs_value_to_string(vm, search, search);
+ if (njs_slow_path(ret != NJS_OK)) {
+ return ret;
}
}
}
@@ -3559,14 +3543,9 @@ njs_string_prototype_replace(njs_vm_t *v

} else {
if (njs_slow_path(!njs_is_string(replace))) {
- if (njs_is_undefined(replace)) {
- replace = njs_value_arg(&njs_string_undefined);
-
- } else {
- ret = njs_value_to_string(vm, replace, replace);
- if (njs_slow_path(ret != NJS_OK)) {
- return ret;
- }
+ ret = njs_value_to_string(vm, replace, replace);
+ if (njs_slow_path(ret != NJS_OK)) {
+ return ret;
}
}

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Subject Author Views Posted

[njs] Added njs_lvalue_arg() macro.

Alexander Borisov 45 October 28, 2019 09:12AM



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