tronbox/build/components/Resolver/index.js

TronBox - Simple development framework for Tron

"use strict";var EPMSource=require("./epm");var NPMSource=require("./npm");var FSSource=require("./fs");var whilst=require("async/whilst");var contract=require("../Contract");var expect=require("@truffle/expect");var provision=require("../Provisioner");function Resolver(options){expect.options(options,["working_directory","contracts_build_directory"]);this.options=options;this.sources=[new EPMSource(options.working_directory,options.contracts_build_directory),new NPMSource(options.working_directory),new NPMSource(__dirname),new FSSource(options.working_directory,options.contracts_build_directory)]}Resolver.prototype.require=function(import_path,search_path){var self=this;for(var i=0;i<this.sources.length;i++){var source=this.sources[i];var result=source.require(import_path,search_path);if(result){var abstraction=contract(result);provision(abstraction,self.options);return abstraction}}throw new Error("Could not find artifacts for "+import_path+" from any sources")};Resolver.prototype.resolve=function(import_path,imported_from,callback){var self=this;if(typeof imported_from==="function"){callback=imported_from;imported_from=null}var resolved_body=null;var resolved_path=null;var current_index=-1;var current_source;whilst(function(){return!resolved_body&&current_index<self.sources.length-1},function(next){current_index+=1;current_source=self.sources[current_index];current_source.resolve(import_path,imported_from,function(err,body,file_path){if(!err&&body){resolved_body=body;resolved_path=file_path}next(err)})},function(err){if(err)return callback(err);if(!resolved_body){var message="Could not find "+import_path+" from any sources";if(imported_from){message+="; imported from "+imported_from}return callback(new Error(message))}callback(null,resolved_body,resolved_path,current_source)})};module.exports=Resolver;