snarkjs/src/loadsyms.js
2021-05-31 13:21:07 +02:00

56 lines
1.8 KiB
JavaScript

/*
Copyright 2018 0KIMS association.
This file is part of snarkJS.
snarkJS is a free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
snarkJS is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU General Public License
along with snarkJS. If not, see <https://www.gnu.org/licenses/>.
*/
import * as fastFile from "fastfile";
export default async function loadSymbols(symFileName) {
const sym = {
labelIdx2Name: [ "one" ],
varIdx2Name: [ "one" ],
componentIdx2Name: []
};
const fd = await fastFile.readExisting(symFileName);
const buff = await fd.read(fd.totalSize);
const symsStr = new TextDecoder("utf-8").decode(buff);
const lines = symsStr.split("\n");
for (let i=0; i<lines.length; i++) {
const arr = lines[i].split(",");
if (arr.length!=4) continue;
if (sym.varIdx2Name[arr[1]]) {
sym.varIdx2Name[arr[1]] += "|" + arr[3];
} else {
sym.varIdx2Name[arr[1]] = arr[3];
}
sym.labelIdx2Name[arr[0]] = arr[3];
if (!sym.componentIdx2Name[arr[2]]) {
sym.componentIdx2Name[arr[2]] = extractComponent(arr[3]);
}
}
await fd.close();
return sym;
function extractComponent(name) {
const arr = name.split(".");
arr.pop(); // Remove the lasr element
return arr.join(".");
}
}