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pas2js: arraySetLength: faster resize

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git-svn-id: trunk@45297 -
This commit is contained in:
Mattias Gaertner 2020-05-06 20:09:35 +00:00
parent 728a60c155
commit 14ccc191eb
1 changed files with 20 additions and 10 deletions
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32
utils/pas2js/dist/rtl.js vendored
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@ -838,17 +838,23 @@ var rtl = {
var item = null; var item = null;
var a = null; var a = null;
var src = arr; var src = arr;
var oldlen = 0; var srclen = 0, oldlen = 0;
do{ do{
if (depth>0){ if (depth>0){
item=stack[depth-1]; item=stack[depth-1];
src = (item.src && item.src.length>item.i)?item.src[item.i]:null; src = (item.src && item.src.length>item.i)?item.src[item.i]:null;
} }
if (!src || src.$pas2jsrefcnt>0){ if (!src){
a = []; a = [];
oldlen = src?src.length:0; srclen = 0;
oldlen = 0;
} else if (src.$pas2jsrefcnt>0){
a = [];
srclen = src.length;
oldlen = srclen;
} else { } else {
a = src; a = src;
srclen = 0;
oldlen = a.length; oldlen = a.length;
} }
a.length = stack[depth].dim; a.length = stack[depth].dim;
@ -864,18 +870,22 @@ var rtl = {
depth++; depth++;
} else { } else {
if (rtl.isArray(defaultvalue)){ if (rtl.isArray(defaultvalue)){
for (var i=0; i<lastlen; i++) a[i]=(i<oldlen)?src[i]:[]; // array of dyn array // array of dyn array
for (var i=0; i<srclen; i++) a[i]=src[i];
for (var i=oldlen; i<lastlen; i++) a[i]=[];
} else if (rtl.isObject(defaultvalue)) { } else if (rtl.isObject(defaultvalue)) {
if (rtl.isTRecord(defaultvalue)){ if (rtl.isTRecord(defaultvalue)){
for (var i=0; i<lastlen; i++){ // array of record
a[i]=(i<oldlen)?defaultvalue.$clone(src[i]):defaultvalue.$new(); // e.g. record for (var i=0; i<srclen; i++) a[i]=defaultvalue.$clone(src[i]);
for (var i=oldlen; i<lastlen; i++) a[i]=defaultvalue.$new();
} else {
// set
for (var i=0; i<srclen; i++) a[i]=rtl.refSet(src[i]);
for (var i=oldlen; i<lastlen; i++) a[i]={};
} }
} else { } else {
for (var i=0; i<lastlen; i++) a[i]=(i<oldlen)?rtl.refSet(src[i]):{}; // e.g. set for (var i=0; i<srclen; i++) a[i]=src[i];
} for (var i=oldlen; i<lastlen; i++) a[i]=defaultvalue;
} else {
for (var i=0; i<lastlen; i++)
a[i]=(i<oldlen)?src[i]:defaultvalue;
} }
while ((depth>0) && (stack[depth-1].i>=stack[depth-1].dim)){ while ((depth>0) && (stack[depth-1].i>=stack[depth-1].dim)){
depth--; depth--;