embark-area-51/lib/modules/solidity/solcP.js

59 lines
1.7 KiB
JavaScript

const fs = require('fs-extra');
const path = require('path');
const constants = require('../../constants');
const Utils = require('../../utils/utils');
const ProcessWrapper = require('../../process/processWrapper');
class SolcProcess extends ProcessWrapper {
findImports(filename) {
if (filename.startsWith('http') || filename.startsWith('git')) {
const fileObj = Utils.getExternalContractUrl(filename);
filename = fileObj.filePath;
}
if (fs.existsSync(filename)) {
return {contents: fs.readFileSync(filename).toString()};
}
if (fs.existsSync(path.join('./node_modules/', filename))) {
return {contents: fs.readFileSync(path.join('./node_modules/', filename)).toString()};
}
if (fs.existsSync(path.join(constants.httpContractsDirectory, filename))) {
return {contents: fs.readFileSync(path.join('./.embark/contracts', filename)).toString()};
}
return {error: 'File not found'};
}
loadCompiler(solcLocation) {
this.solc = require(solcLocation);
}
compile(jsonObj, cb) {
// TODO: only available in 0.4.11; need to make versions warn about this
let output = this.solc.compileStandardWrapper(JSON.stringify(jsonObj), this.findImports);
cb(output);
}
}
let solcProcess;
process.on('message', function (msg) {
if (msg.action === "init") {
solcProcess = new SolcProcess(msg.options);
return process.send({result: "initiated"});
}
if (msg.action === 'loadCompiler') {
solcProcess.loadCompiler(msg.requirePath);
process.send({result: "loadedCompiler"});
}
if (msg.action === 'compile') {
solcProcess.compile(msg.jsonObj, (output) => {
process.send({result: "compilation-" + msg.id, output: output});
});
}
});