querystring: reduce memory usage by Int8Array

PR-URL: #34179
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: sapics

lib/internal/querystring.js

@@ -2,6 +2,7 @@
 
 const{
  Array,
+ Int8Array,
 }=primordials;
 
 const{ERR_INVALID_URI}=require('internal/errors').codes;
@@ -10,7 +11,7 @@ const hexTable = new Array(256);
 for(leti=0;i<256;++i)
 hexTable[i]='%'+((i<16 ? '0' : '')+i.toString(16)).toUpperCase();
 
-constisHexTable=[
+constisHexTable=newInt8Array([
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,// 0 - 15
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,// 16 - 31
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,// 32 - 47
@@ -27,7 +28,7 @@ const isHexTable = [
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0// ... 256
-];
+]);
 
 functionencodeStr(str,noEscapeTable,hexTable){
 constlen=str.length;

lib/internal/url.js

@@ -2,6 +2,7 @@
 
 const{
  Array,
+ Int8Array,
  Number,
  ObjectCreate,
  ObjectDefineProperties,
@@ -819,7 +820,7 @@ function parseParams(qs) {
 
 // Adapted from querystring's implementation.
 // Ref: https://url.spec.whatwg.org/#concept-urlencoded-byte-serializer
-constnoEscape=[
+constnoEscape=newInt8Array([
 /*
  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F
 */
@@ -831,7 +832,7 @@ const noEscape = [
 1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,1,// 0x50 - 0x5F
 0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x60 - 0x6F
 1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0// 0x70 - 0x7F
-];
+]);
 
 // Special version of hexTable that uses `+` for U+0020 SPACE.
 constparamHexTable=hexTable.slice();

lib/querystring.js

@@ -26,6 +26,7 @@
 const{
  Array,
  ArrayIsArray,
+ Int8Array,
  MathAbs,
  NumberIsFinite,
  ObjectCreate,
@@ -54,7 +55,7 @@ const QueryString = module.exports = {
 decode: parse
 };
 
-constunhexTable=[
+constunhexTable=newInt8Array([
 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,// 0 - 15
 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,// 16 - 31
 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,// 32 - 47
@@ -71,7 +72,7 @@ const unhexTable = [
 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1// ... 255
-];
+]);
 // A safe fast alternative to decodeURIComponent
 functionunescapeBuffer(s,decodeSpaces){
 constout=Buffer.allocUnsafe(s.length);
@@ -131,7 +132,7 @@ function qsUnescape(s, decodeSpaces) {
 // digits
 // alpha (uppercase)
 // alpha (lowercase)
-constnoEscape=[
+constnoEscape=newInt8Array([
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,// 0 - 15
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,// 16 - 31
 0,1,0,0,0,0,0,1,1,1,1,0,0,1,1,0,// 32 - 47
@@ -140,7 +141,7 @@ const noEscape = [
 1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,1,// 80 - 95
 0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 96 - 111
 1,1,1,1,1,1,1,1,1,1,1,0,0,0,1,0// 112 - 127
-];
+]);
 // QueryString.escape() replaces encodeURIComponent()
 // https://www.ecma-international.org/ecma-262/5.1/#sec-15.1.3.4
 functionqsEscape(str){

lib/url.js

@@ -22,6 +22,7 @@
 'use strict';
 
 const{
+ Int8Array,
  ObjectCreate,
  ObjectKeys,
  SafeSet,
@@ -561,7 +562,7 @@ function urlFormat(urlObject, options) {
 // digits
 // alpha (uppercase)
 // alpha (lowercase)
-constnoEscapeAuth=[
+constnoEscapeAuth=newInt8Array([
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,// 0x00 - 0x0F
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,// 0x10 - 0x1F
 0,1,0,0,0,0,0,1,1,1,1,0,0,1,1,0,// 0x20 - 0x2F
@@ -570,7 +571,7 @@ const noEscapeAuth = [
 1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,1,// 0x50 - 0x5F
 0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x60 - 0x6F
 1,1,1,1,1,1,1,1,1,1,1,0,0,0,1,0// 0x70 - 0x7F
-];
+]);
 
 Url.prototype.format=functionformat(){
 letauth=this.auth||'';