public-offering
/
pad.pub0.org
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Changeset: Use Maps to simplify attribute processing

pull/5268/head
Richard Hansen 2021-10-12 02:00:56 -04:00
parent 9401ae876b
commit b62534a6b2
1 changed files with 14 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
src/static/js/Changeset.js
View File

@ -1129,32 +1129,23 @@ exports.composeAttributes = (att1, att2, resultIsMutation, pool) => {
return att2;
}
if (!att2) return att1;
const atts = [];
const atts = new Map();
att1.replace(/\*([0-9a-z]+)/g, (_, a) => {
atts.push(pool.getAttrib(exports.parseNum(a)));
const [key, val] = pool.getAttrib(exports.parseNum(a));
atts.set(key, val);
return '';
});
att2.replace(/\*([0-9a-z]+)/g, (_, a) => {
const pair = pool.getAttrib(exports.parseNum(a));
let found = false;
for (let i = 0; i < atts.length; i++) {
const oldPair = atts[i];
if (oldPair[0] !== pair[0]) continue;
if (pair[1] || resultIsMutation) {
oldPair[1] = pair[1];
} else {
atts.splice(i, 1);
}
found = true;
break;
}
if ((!found) && (pair[1] || resultIsMutation)) {
atts.push(pair);
const [key, val] = pool.getAttrib(exports.parseNum(a));
if (val || resultIsMutation) {
atts.set(key, val);
} else {
atts.delete(key);
}
return '';
});
const buf = exports.stringAssembler();
for (const att of sortAttribs(atts)) {
for (const att of sortAttribs([...atts])) {
buf.append('*');
buf.append(exports.numToString(pool.putAttrib(att)));
}
@ -2265,22 +2256,15 @@ const followAttributes = (att1, att2, pool) => {
// to produce the merged set.
if ((!att2) || (!pool)) return '';
if (!att1) return att2;
const atts = [];
const atts = new Map();
att2.replace(/\*([0-9a-z]+)/g, (_, a) => {
atts.push(pool.getAttrib(exports.parseNum(a)));
const [key, val] = pool.getAttrib(exports.parseNum(a));
atts.set(key, val);
return '';
});
att1.replace(/\*([0-9a-z]+)/g, (_, a) => {
const pair1 = pool.getAttrib(exports.parseNum(a));
for (let i = 0; i < atts.length; i++) {
const pair2 = atts[i];
if (pair1[0] !== pair2[0]) continue;
if (pair1[1] <= pair2[1]) {
// winner of merge is pair1, delete this attribute
atts.splice(i, 1);
}
break;
}
const [key, val] = pool.getAttrib(exports.parseNum(a));
if (atts.has(key) && val <= atts.get(key)) atts.delete(key);
return '';
});
// we've only removed attributes, so they're already sorted