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[njs] Introduced njs_parser_variable_node().

Dmitry Volyntsev
April 02, 2019 12:50PM
details: https://hg.nginx.org/njs/rev/bbba5c9fcbf1
branches:
changeset: 865:bbba5c9fcbf1
user: Dmitry Volyntsev <xeioex@nginx.com>
date: Tue Apr 02 19:32:43 2019 +0300
description:
Introduced njs_parser_variable_node().

diffstat:

njs/njs_parser.c | 91 +++++++++++++++++++++++++------------------------------
1 files changed, 41 insertions(+), 50 deletions(-)

diffs (175 lines):

diff -r 8d9585e9cc8b -r bbba5c9fcbf1 njs/njs_parser.c
--- a/njs/njs_parser.c Tue Apr 02 17:45:38 2019 +0300
+++ b/njs/njs_parser.c Tue Apr 02 19:32:43 2019 +0300
@@ -491,6 +491,34 @@ njs_parser_block(njs_vm_t *vm, njs_parse
}


+static njs_parser_node_t *
+njs_parser_variable_node(njs_vm_t *vm, njs_parser_t *parser, nxt_str_t *name,
+ uint32_t hash, njs_variable_type_t type)
+{
+ nxt_int_t ret;
+ njs_variable_t *var;
+ njs_parser_node_t *node;
+
+ var = njs_variable_add(vm, parser->scope, name, hash, type);
+ if (nxt_slow_path(var == NULL)) {
+ return NULL;
+ }
+
+ node = njs_parser_node_new(vm, parser, NJS_TOKEN_NAME);
+ if (nxt_slow_path(node == NULL)) {
+ return NULL;
+ }
+
+ ret = njs_variable_reference(vm, parser->scope, node, name, hash,
+ NJS_DECLARATION);
+ if (nxt_slow_path(ret != NXT_OK)) {
+ return NULL;
+ }
+
+ return node;
+}
+
+
static njs_token_t
njs_parser_labelled_statement(njs_vm_t *vm, njs_parser_t *parser)
{
@@ -983,9 +1011,7 @@ njs_parser_return_statement(njs_vm_t *vm
static njs_token_t
njs_parser_var_statement(njs_vm_t *vm, njs_parser_t *parser)
{
- njs_ret_t ret;
njs_token_t token;
- njs_variable_t *var;
njs_parser_node_t *left, *stmt, *name, *assign, *expr;

parser->node = NULL;
@@ -1007,21 +1033,14 @@ njs_parser_var_statement(njs_vm_t *vm, n
return NJS_TOKEN_ILLEGAL;
}

- var = njs_parser_variable_add(vm, parser, NJS_VARIABLE_VAR);
- if (nxt_slow_path(var == NULL)) {
- return NJS_TOKEN_ERROR;
- }
-
- name = njs_parser_node_new(vm, parser, NJS_TOKEN_NAME);
+
+ name = njs_parser_variable_node(vm, parser, njs_parser_text(parser),
+ njs_parser_key_hash(parser),
+ NJS_VARIABLE_VAR);
if (nxt_slow_path(name == NULL)) {
return NJS_TOKEN_ERROR;
}

- ret = njs_parser_variable_reference(vm, parser, name, NJS_DECLARATION);
- if (nxt_slow_path(ret != NXT_OK)) {
- return NJS_TOKEN_ERROR;
- }
-
token = njs_parser_token(vm, parser);
if (nxt_slow_path(token <= NJS_TOKEN_ILLEGAL)) {
return token;
@@ -1435,9 +1454,7 @@ njs_parser_for_statement(njs_vm_t *vm, n
static njs_token_t
njs_parser_for_var_statement(njs_vm_t *vm, njs_parser_t *parser)
{
- njs_ret_t ret;
njs_token_t token;
- njs_variable_t *var;
njs_parser_node_t *left, *stmt, *name, *assign, *expr;

parser->node = NULL;
@@ -1459,21 +1476,13 @@ njs_parser_for_var_statement(njs_vm_t *v
return NJS_TOKEN_ILLEGAL;
}

- var = njs_parser_variable_add(vm, parser, NJS_VARIABLE_VAR);
- if (nxt_slow_path(var == NULL)) {
- return NJS_TOKEN_ERROR;
- }
-
- name = njs_parser_node_new(vm, parser, NJS_TOKEN_NAME);
+ name = njs_parser_variable_node(vm, parser, njs_parser_text(parser),
+ njs_parser_key_hash(parser),
+ NJS_VARIABLE_VAR);
if (nxt_slow_path(name == NULL)) {
return NJS_TOKEN_ERROR;
}

- ret = njs_parser_variable_reference(vm, parser, name, NJS_DECLARATION);
- if (nxt_slow_path(ret != NXT_OK)) {
- return NJS_TOKEN_ERROR;
- }
-
token = njs_parser_token(vm, parser);
if (nxt_slow_path(token <= NJS_TOKEN_ILLEGAL)) {
return token;
@@ -1672,7 +1681,6 @@ njs_parser_try_statement(njs_vm_t *vm, n
{
njs_ret_t ret;
njs_token_t token;
- njs_variable_t *var;
njs_parser_node_t *node, *try, *catch;

token = njs_parser_try_block(vm, parser);
@@ -1718,21 +1726,13 @@ njs_parser_try_statement(njs_vm_t *vm, n
return NJS_TOKEN_ERROR;
}

- var = njs_parser_variable_add(vm, parser, NJS_VARIABLE_CATCH);
- if (nxt_slow_path(var == NULL)) {
- return NJS_TOKEN_ERROR;
- }
-
- node = njs_parser_node_new(vm, parser, NJS_TOKEN_NAME);
+ node = njs_parser_variable_node(vm, parser, njs_parser_text(parser),
+ njs_parser_key_hash(parser),
+ NJS_VARIABLE_CATCH);
if (nxt_slow_path(node == NULL)) {
return NJS_TOKEN_ERROR;
}

- ret = njs_parser_variable_reference(vm, parser, node, NJS_DECLARATION);
- if (nxt_slow_path(ret != NXT_OK)) {
- return NJS_TOKEN_ERROR;
- }
-
catch->left = node;

token = njs_parser_token(vm, parser);
@@ -1857,7 +1857,6 @@ njs_parser_import_statement(njs_vm_t *vm
{
njs_ret_t ret;
njs_token_t token;
- njs_variable_t *var;
njs_parser_node_t *name, *import;

if (parser->scope->type != NJS_SCOPE_GLOBAL
@@ -1879,21 +1878,13 @@ njs_parser_import_statement(njs_vm_t *vm
return NJS_TOKEN_ILLEGAL;
}

- var = njs_parser_variable_add(vm, parser, NJS_VARIABLE_VAR);
- if (nxt_slow_path(var == NULL)) {
- return NJS_TOKEN_ERROR;
- }
-
- name = njs_parser_node_new(vm, parser, NJS_TOKEN_NAME);
+ name = njs_parser_variable_node(vm, parser, njs_parser_text(parser),
+ njs_parser_key_hash(parser),
+ NJS_VARIABLE_VAR);
if (nxt_slow_path(name == NULL)) {
return NJS_TOKEN_ERROR;
}

- ret = njs_parser_variable_reference(vm, parser, name, NJS_DECLARATION);
- if (nxt_slow_path(ret != NXT_OK)) {
- return NJS_TOKEN_ERROR;
- }
-
token = njs_parser_token(vm, parser);
if (nxt_slow_path(token <= NJS_TOKEN_ILLEGAL)) {
return token;
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Subject Author Views Posted

[njs] Introduced njs_parser_variable_node().

Dmitry Volyntsev 350 April 02, 2019 12:50PM



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