Welcome! Log In Create A New Profile

Advanced

[njs] Introduced njs_parser_init().

Dmitry Volyntsev
February 14, 2022 09:36AM
details: https://hg.nginx.org/njs/rev/26fd49ea3f72
branches:
changeset: 1826:26fd49ea3f72
user: Dmitry Volyntsev <xeioex@nginx.com>
date: Mon Feb 14 14:10:59 2022 +0000
description:
Introduced njs_parser_init().

diffstat:

src/njs_function.c | 9 ++-------
src/njs_parser.c | 27 +++++++++++++++++++++++++++
src/njs_parser.h | 4 ++++
src/njs_vm.c | 14 ++++----------
4 files changed, 37 insertions(+), 17 deletions(-)

diffs (131 lines):

diff -r 4e045c33a32e -r 26fd49ea3f72 src/njs_function.c
--- a/src/njs_function.c Mon Feb 14 14:10:47 2022 +0000
+++ b/src/njs_function.c Mon Feb 14 14:10:59 2022 +0000
@@ -1103,7 +1103,6 @@ njs_function_constructor(njs_vm_t *vm, n
njs_int_t ret;
njs_str_t str, file;
njs_uint_t i;
- njs_lexer_t lexer;
njs_parser_t parser;
njs_vm_code_t *code;
njs_function_t *function;
@@ -1171,16 +1170,12 @@ njs_function_constructor(njs_vm_t *vm, n

file = njs_str_value("runtime");

- ret = njs_lexer_init(vm, &lexer, &file, str.start, str.start + str.length,
- 1);
+ ret = njs_parser_init(vm, &parser, NULL, &file, str.start,
+ str.start + str.length, 1);
if (njs_slow_path(ret != NJS_OK)) {
return ret;
}

- njs_memzero(&parser, sizeof(njs_parser_t));
-
- parser.lexer = &lexer;
-
ret = njs_parser(vm, &parser);
if (njs_slow_path(ret != NJS_OK)) {
return ret;
diff -r 4e045c33a32e -r 26fd49ea3f72 src/njs_parser.c
--- a/src/njs_parser.c Mon Feb 14 14:10:47 2022 +0000
+++ b/src/njs_parser.c Mon Feb 14 14:10:59 2022 +0000
@@ -519,6 +519,33 @@ njs_parser_reject(njs_parser_t *parser)


njs_int_t
+njs_parser_init(njs_vm_t *vm, njs_parser_t *parser, njs_parser_scope_t *scope,
+ njs_str_t *file, u_char *start, u_char *end, njs_uint_t runtime)
+{
+ njs_lexer_t *lexer;
+
+ njs_memzero(parser, sizeof(njs_parser_t));
+
+ parser->scope = scope;
+
+ lexer = &parser->lexer0;
+ parser->lexer = lexer;
+
+ lexer->file = *file;
+ lexer->start = start;
+ lexer->end = end;
+ lexer->line = 1;
+ lexer->keywords_hash = (runtime) ? &vm->keywords_hash
+ : &vm->shared->keywords_hash;
+ lexer->mem_pool = vm->mem_pool;
+
+ njs_queue_init(&lexer->preread);
+
+ return NJS_OK;
+}
+
+
+njs_int_t
njs_parser(njs_vm_t *vm, njs_parser_t *parser)
{
njs_int_t ret;
diff -r 4e045c33a32e -r 26fd49ea3f72 src/njs_parser.h
--- a/src/njs_parser.h Mon Feb 14 14:10:47 2022 +0000
+++ b/src/njs_parser.h Mon Feb 14 14:10:59 2022 +0000
@@ -74,6 +74,7 @@ typedef njs_int_t (*njs_parser_state_fun
struct njs_parser_s {
njs_parser_state_func_t state;
njs_queue_t stack;
+ njs_lexer_t lexer0;
njs_lexer_t *lexer;
njs_vm_t *vm;
njs_parser_node_t *node;
@@ -119,6 +120,9 @@ njs_int_t njs_parser_failed_state(njs_pa

intptr_t njs_parser_scope_rbtree_compare(njs_rbtree_node_t *node1,
njs_rbtree_node_t *node2);
+njs_int_t njs_parser_init(njs_vm_t *vm, njs_parser_t *parser,
+ njs_parser_scope_t *scope, njs_str_t *file, u_char *start, u_char *end,
+ njs_uint_t runtime);
njs_int_t njs_parser(njs_vm_t *vm, njs_parser_t *parser);

njs_int_t njs_parser_module_lambda(njs_parser_t *parser,
diff -r 4e045c33a32e -r 26fd49ea3f72 src/njs_vm.c
--- a/src/njs_vm.c Mon Feb 14 14:10:47 2022 +0000
+++ b/src/njs_vm.c Mon Feb 14 14:10:59 2022 +0000
@@ -143,27 +143,21 @@ njs_vm_compile(njs_vm_t *vm, u_char **st
njs_str_t ast;
njs_chb_t chain;
njs_value_t **global, **new;
- njs_lexer_t lexer;
njs_parser_t parser;
njs_vm_code_t *code;
njs_generator_t generator;
njs_parser_scope_t *scope;

- njs_memzero(&parser, sizeof(njs_parser_t));
-
- parser.scope = vm->global_scope;
-
- if (parser.scope != NULL && vm->modules != NULL) {
+ if (vm->modules != NULL) {
njs_module_reset(vm);
}

- ret = njs_lexer_init(vm, &lexer, &vm->options.file, *start, end, 0);
+ ret = njs_parser_init(vm, &parser, vm->global_scope, &vm->options.file,
+ *start, end, 0);
if (njs_slow_path(ret != NJS_OK)) {
return NJS_ERROR;
}

- parser.lexer = &lexer;
-
ret = njs_parser(vm, &parser);
if (njs_slow_path(ret != NJS_OK)) {
return NJS_ERROR;
@@ -186,7 +180,7 @@ njs_vm_compile(njs_vm_t *vm, u_char **st
njs_mp_free(vm->mem_pool, ast.start);
}

- *start = lexer.start;
+ *start = parser.lexer->start;
scope = parser.scope;

ret = njs_generator_init(&generator, 0, 0);
_______________________________________________
nginx-devel mailing list -- nginx-devel@nginx.org
To unsubscribe send an email to nginx-devel-leave@nginx.org
Subject Author Views Posted

[njs] Introduced njs_parser_init().

Dmitry Volyntsev 437 February 14, 2022 09:36AM



Sorry, you do not have permission to post/reply in this forum.

Online Users

Guests: 86
Record Number of Users: 6 on February 13, 2018
Record Number of Guests: 421 on December 02, 2018
Powered by nginx      Powered by FreeBSD      PHP Powered      Powered by MariaDB      ipv6 ready