detect and replace library references with address

Author: iurimatias

boilerplate/config/development/genesis.json

@@ -1,5 +1,7 @@
 {
-    "config": {},
+    "config": {
+      "homesteadBlock": 1
+    },
     "nonce": "0x0000000000000042",
     "difficulty": "0x0",
     "alloc": {

demo/config/development/genesis.json

@@ -1,5 +1,7 @@
 {
-    "config": {},
+    "config": {
+      "homesteadBlock": 1
+    },
     "nonce": "0x0000000000000042",
     "difficulty": "0x0",
     "alloc": {

lib/contracts/compiler.js

@@ -95,6 +95,7 @@ class Compiler {
           // [2] classname
           const regex = /(.*):(.*)/;
           const className = contractName.match(regex)[2];
+          const filename = contractName.match(regex)[1];
 
           compiled_object[className] = {};
           compiled_object[className].code = contract.bytecode;
@@ -104,7 +105,9 @@ class Compiler {
           compiled_object[className].gasEstimates = contract.gasEstimates;
           compiled_object[className].functionHashes = contract.functionHashes;
           compiled_object[className].abiDefinition = JSON.parse(contract.interface);
+          compiled_object[className].filename = filename
         }
+
         callback(null, compiled_object);
       }
     ], function (err, result) {

lib/contracts/contracts.js

@@ -61,6 +61,7 @@ class ContractsManager {
           contract.gasEstimates = compiledContract.gasEstimates;
           contract.functionHashes = compiledContract.functionHashes;
           contract.abiDefinition = compiledContract.abiDefinition;
+          contract.filename = compiledContract.filename;
 
           contract.gas = (contractConfig && contractConfig.gas) || self.contractsConfig.gas || 'auto';
           self.adjustGas(contract);

lib/contracts/deploy.js

@@ -105,18 +105,32 @@ class Deploy {
         return callback(new Error(err));
       }
 
+      let contractCode = contract.code;
+      let contractsList = self.contractsManager.listContracts();
+      for (let contractObj of contractsList) {
+        let filename = contractObj.filename;
+        let deployedAddress = contractObj.deployedAddress;
+        if (deployedAddress) {
+          deployedAddress = deployedAddress.substr(2);
+        }
+        let linkReference = '__' + filename + ":" + contractObj.className;
+        let toReplace = linkReference + "_".repeat(40 - linkReference.length);
+        contractCode = contractCode.replace(toReplace, deployedAddress);
+      }
+
       // TODO: probably needs to be defaultAccount
       // TODO: it wouldn't necessary be the first address
       // use defined blockchain address or first address
       contractParams.push({
         //from: this.web3.eth.coinbase,
         from: accounts[0],
-        data: "0x" + contract.code,
+        data: "0x" + contractCode,
         gas: contract.gas,
         gasPrice: contract.gasPrice
       });
 
       self.logger.info("deploying " + contract.className.bold.cyan + " with ".green + contract.gas + " gas".green);
+
       contractParams.push(function (err, transaction) {
         self.logger.contractsState(self.contractsManager.contractsState());
 

test_app/app/contracts/test.sol

@@ -0,0 +1,17 @@
+pragma solidity ^0.4.11;
+
+library AMyLib {
+
+  function add(uint _a, uint _b) returns (uint _c) {
+    return _a + _b;
+  }
+
+}
+
+contract Test {
+
+  function testAdd() constant returns (uint _result) {
+    return AMyLib.add(1, 2);
+  }
+
+}

test_app/config/development/genesis.json

@@ -1,5 +1,7 @@
 {
-    "config": {},
+    "config": {
+      "homesteadBlock": 1
+    },
     "nonce": "0x0000000000000042",
     "difficulty": "0x0",
     "alloc": {