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[njs] Introduced "undefined" as a token in lexer.

Dmitry Volyntsev
April 30, 2021 06:12AM
details: https://hg.nginx.org/njs/rev/cb99db22e3e5
branches:
changeset: 1628:cb99db22e3e5
user: Dmitry Volyntsev <xeioex@nginx.com>
date: Fri Apr 16 15:25:22 2021 +0000
description:
Introduced "undefined" as a token in lexer.

diffstat:

src/njs_lexer.h | 1 +
src/njs_lexer_tables.h | 20 +++++++++++++-------
utils/lexer_keyword.py | 1 +
3 files changed, 15 insertions(+), 7 deletions(-)

diffs (87 lines):

diff -r 282a13ecd193 -r cb99db22e3e5 src/njs_lexer.h
--- a/src/njs_lexer.h Fri Apr 30 10:10:57 2021 +0000
+++ b/src/njs_lexer.h Fri Apr 16 15:25:22 2021 +0000
@@ -116,6 +116,7 @@ typedef enum {
NJS_TOKEN_NULL,
NJS_TOKEN_NUMBER,
NJS_TOKEN_TRUE,
+ NJS_TOKEN_UNDEFINED,
NJS_TOKEN_FALSE,
NJS_TOKEN_STRING,

diff -r 282a13ecd193 -r cb99db22e3e5 src/njs_lexer_tables.h
--- a/src/njs_lexer_tables.h Fri Apr 30 10:10:57 2021 +0000
+++ b/src/njs_lexer_tables.h Fri Apr 16 15:25:22 2021 +0000
@@ -10,7 +10,7 @@
#define _NJS_LEXER_TABLES_H_INCLUDED_


-static const njs_keyword_t njs_lexer_kws[53] =
+static const njs_keyword_t njs_lexer_kws[54] =
{
{
.entry = { njs_str("arguments") },
@@ -301,6 +301,12 @@ static const njs_keyword_t njs_lexer_kws
},

{
+ .entry = { njs_str("undefined") },
+ .type = NJS_TOKEN_UNDEFINED,
+ .reserved = 0
+ },
+
+ {
.entry = { njs_str("var") },
.type = NJS_TOKEN_VAR,
.reserved = 1
@@ -364,10 +370,10 @@ static const njs_lexer_keyword_entry_t n
{ "null", &njs_lexer_kws[32], 4, 0 },
{ NULL, NULL, 0, 0 },
{ "do", &njs_lexer_kws[12], 2, 0 },
- { "var", &njs_lexer_kws[48], 3, 0 },
+ { "var", &njs_lexer_kws[49], 3, 0 },
{ "if", &njs_lexer_kws[23], 2, 7 },
{ "implements", &njs_lexer_kws[24], 10, 0 },
- { "with", &njs_lexer_kws[51], 4, 0 },
+ { "with", &njs_lexer_kws[52], 4, 0 },
{ NULL, NULL, 0, 0 },
{ "eval", &njs_lexer_kws[15], 4, 9 },
{ NULL, NULL, 0, 0 },
@@ -379,14 +385,14 @@ static const njs_lexer_keyword_entry_t n
{ NULL, NULL, 0, 0 },
{ NULL, NULL, 0, 0 },
{ "default", &njs_lexer_kws[10], 7, 0 },
- { "void", &njs_lexer_kws[49], 4, 0 },
+ { "void", &njs_lexer_kws[50], 4, 0 },
{ NULL, NULL, 0, 0 },
{ NULL, NULL, 0, 0 },
- { NULL, NULL, 0, 0 },
+ { "undefined", &njs_lexer_kws[48], 9, 0 },
{ "from", &njs_lexer_kws[21], 4, 0 },
{ "package", &njs_lexer_kws[34], 7, 15 },
{ NULL, NULL, 0, 0 },
- { "yield", &njs_lexer_kws[52], 5, 0 },
+ { "yield", &njs_lexer_kws[53], 5, 0 },
{ NULL, NULL, 0, 0 },
{ NULL, NULL, 0, 0 },
{ "of", &njs_lexer_kws[33], 2, 0 },
@@ -403,7 +409,7 @@ static const njs_lexer_keyword_entry_t n
{ NULL, NULL, 0, 0 },
{ NULL, NULL, 0, 0 },
{ "for", &njs_lexer_kws[20], 3, 0 },
- { "while", &njs_lexer_kws[50], 5, 0 },
+ { "while", &njs_lexer_kws[51], 5, 0 },
{ NULL, NULL, 0, 0 },
{ NULL, NULL, 0, 0 },
{ NULL, NULL, 0, 0 },
diff -r 282a13ecd193 -r cb99db22e3e5 utils/lexer_keyword.py
--- a/utils/lexer_keyword.py Fri Apr 30 10:10:57 2021 +0000
+++ b/utils/lexer_keyword.py Fri Apr 16 15:25:22 2021 +0000
@@ -6,6 +6,7 @@ global_keywords = {
"null": 1,
"false": 1,
"true": 1,
+ "undefined": 0,

# Operators.

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[njs] Introduced "undefined" as a token in lexer.

Dmitry Volyntsev 119 April 30, 2021 06:12AM



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