mirror of https://github.com/embarklabs/embark.git
111 lines
4.4 KiB
JavaScript
111 lines
4.4 KiB
JavaScript
const Viz = require('viz.js');
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const fs = require('fs');
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class GraphGenerator {
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constructor(engine) {
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this.engine = engine;
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}
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generate() {
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let id = 0;
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let contractString = "";
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let relationshipString = "";
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let idMapping = {};
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let contractInheritance = {};
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for (let contract in this.engine.contractsManager.contracts) {
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id++;
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idMapping[contract] = id;
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let contractLabel = "";
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contractLabel += `${contract}`;
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let tooltip = contract;
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if(this.engine.contractsManager.contracts[contract].instanceOf !== undefined &&
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this.engine.contractsManager.contracts[this.engine.contractsManager.contracts[contract].instanceOf] !== undefined){
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contractInheritance[contract] = this.engine.contractsManager.contracts[contract].instanceOf;
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contractLabel += ": " + this.engine.contractsManager.contracts[contract].instanceOf;
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tooltip += " instance of " + this.engine.contractsManager.contracts[contract].instanceOf;
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} else {
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contractLabel += "|";
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for(let i = 0; i < this.engine.contractsManager.contracts[contract].abiDefinition.length; i++){
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switch(this.engine.contractsManager.contracts[contract].abiDefinition[i].type){
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case 'fallback':
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contractLabel += "«fallback»()\\l";
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break;
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case 'constructor':
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contractLabel += "«constructor»(";
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this.engine.contractsManager.contracts[contract].abiDefinition[i].inputs.forEach(function(elem, index){
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contractLabel += (index == 0 ? "" : ", ") + elem.type;
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});
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contractLabel += ")\\l";
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break;
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case 'event':
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contractLabel += "«event»" + this.engine.contractsManager.contracts[contract].abiDefinition[i].name + "(";
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this.engine.contractsManager.contracts[contract].abiDefinition[i].inputs.forEach(function(elem, index){
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contractLabel += (index == 0 ? "" : ", ") + elem.type;
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});
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contractLabel += ")\\l";
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break;
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default: break;
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}
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}
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let fHashes = this.engine.contractsManager.contracts[contract].functionHashes;
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if(fHashes != {} && fHashes != undefined){
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for(let method in this.engine.contractsManager.contracts[contract].functionHashes){
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contractLabel += method + '\\l';
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}
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}
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}
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let others = '';
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if(!this.engine.contractsManager.contracts[contract].deploy){
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others = 'fontcolor="#c3c3c3", color="#a0a0a0"';
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tooltip += " (not deployed)";
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}
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contractString += `${id}[label = "{${contractLabel}}", tooltip="${tooltip}", fillcolor=gray95, ${others}]\n`;
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}
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for (let c in this.engine.contractsManager.contractDependencies){
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let contractDependencies = Array.from(new Set(this.engine.contractsManager.contractDependencies[c]));
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contractDependencies.forEach(function(d){
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if(idMapping[c] !== undefined && idMapping[d] !== undefined){
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relationshipString += `${idMapping[d]}->${idMapping[c]}[constraint=true, arrowtail=diamond, tooltip="${c} uses ${d}"]\n`;
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}
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});
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}
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for (let c in contractInheritance){
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relationshipString += `${idMapping[contractInheritance[c]]}->${idMapping[c]}[tooltip="${c} instance of ${contractInheritance[c]}"]\n`;
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}
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let dot = `
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digraph Contracts {
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node[shape=record,style=filled]
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edge[dir=back, arrowtail=empty]
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${contractString}
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${relationshipString}
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}`;
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let svg = Viz(dot);
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let filename = "diagram.svg";
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fs.writeFileSync(filename, svg, (err) => {
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if (err) throw err;
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});
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}
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}
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module.exports = GraphGenerator;
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