109 lines
3.0 KiB
JavaScript
109 lines
3.0 KiB
JavaScript
const asciiTable = require('ascii-table');
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const GasEstimator = require('./gasEstimator.js');
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class Profiler {
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constructor(embark, options) {
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this.embark = embark;
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this.logger = embark.logger;
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this.events = embark.events;
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this.plugins = options.plugins;
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this.gasEstimator = new GasEstimator(embark);
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this.registerConsoleCommand();
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this.registerApi();
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}
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profileJSON(contractName, returnCb) {
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const self = this;
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let profileObj = {};
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profileObj.name = contractName;
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profileObj.methods = [];
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self.events.request('contracts:contract', contractName, (contract) => {
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if (!contract || !contract.deployedAddress) {
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return returnCb("-- couldn't profile " + contractName + " - it's not deployed or could be an interface");
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}
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self.gasEstimator.estimateGas(contractName, function(_err, gastimates, _name) {
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contract.abiDefinition.forEach((abiMethod) => {
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let methodName = abiMethod.name;
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if (['constructor', 'fallback'].indexOf(abiMethod.type) >= 0) {
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methodName = abiMethod.type;
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}
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profileObj.methods.push({
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name: methodName,
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type: abiMethod.type,
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payable: abiMethod.payable,
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mutability: abiMethod.stateMutability,
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inputs: abiMethod.inputs || [],
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outputs: abiMethod.outputs || [],
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gasEstimates: gastimates && gastimates[methodName]
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});
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});
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returnCb(null, profileObj);
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});
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});
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}
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profile(contractName, returnCb) {
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const self = this;
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this.profileJSON(contractName, (err, profileObj) => {
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if (err) {
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return returnCb(err);
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}
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let table = new asciiTable(contractName);
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table.setHeading('Function', 'Payable', 'Mutability', 'Inputs', 'Outputs', 'Gas Estimates');
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profileObj.methods.forEach((method) => {
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table.addRow(method.name, method.payable, method.mutability, self.formatParams(method.inputs), self.formatParams(method.outputs), method.gasEstimates);
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});
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return returnCb(null, table.toString());
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});
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}
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formatParams(params) {
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return "(" + (params || []).map(param => param.type).join(',') + ")";
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}
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registerConsoleCommand() {
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const self = this;
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self.embark.registerConsoleCommand((cmd, _options) => {
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let cmdName = cmd.split(' ')[0];
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let contractName = cmd.split(' ')[1];
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return {
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match: () => cmdName === 'profile',
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process: (callback) => {
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this.profile(contractName, callback);
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}
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};
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});
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}
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registerApi() {
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const self = this;
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let plugin = this.plugins.createPlugin('profiler', {});
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plugin.registerAPICall(
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'get',
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'/embark-api/profiler/:contractName',
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(req, res) => {
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let contractName = req.params.contractName;
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self.profileJSON(contractName, (err, table) => {
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if (err) {
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return res.send({error: err.message});
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}
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res.send(table);
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});
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}
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);
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}
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}
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module.exports = Profiler;
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