Fix solc imports. Increase viz memory for large graphs. Source mapping bugfix

Author: fergarrui

README.md

@@ -47,7 +47,7 @@ There are already tools that allow you to debug Ethereum transactions (Solidity)
 
 For now there are many limitations since this is a very early release of the debugger
 
-* The control flow graph is drawn from the static bytecode, so there can be nodes without edges, a symbolic execution would be needed. Maybe added in future releases
+* The control flow graph is drawn from the static bytecode, so there can be nodes without edges, a symbolic execution would be needed. Maybe will be added in future releases
 * Transactions executed in the runtime bytecode are supported (for example, the constructor execution of a contract cannot be debugged right now)
 * You must provide a node URL that supports `debug_traceTransaction`, like Geth or Ganache, therefore, Infura is not supported
 * It only supports Solidity for now, but planning to make it more modular to support different languages (if the compiler gives source mappings)

src/main/java/net/nandgr/debugger/node/NodeService.java

@@ -21,7 +21,7 @@
 
 public class NodeService {
 
-    private static final List<String> callingOps = new ArrayList<>(Arrays.asList(Opcodes.CALL.toString()));
+    private static final List<String> callingOps = new ArrayList<>(Arrays.asList(Opcodes.CALL.toString(), Opcodes.DELEGATECALL.toString()));
     public static final String EMPTY_ADDRESS = "0x0000000000000000000000000000000000000000";
 
     private final String nodeUrl;

src/main/java/net/nandgr/debugger/solc/Solc.java

@@ -28,7 +28,7 @@ public SolcOutput compile() throws IOException, InterruptedException {
     }
 
     private String compileSource() throws InterruptedException, IOException {
-        ProcessBuilder builder = new ProcessBuilder("solc", "--pretty-json", "--combined-json","asm,bin-runtime", fileName);
+        ProcessBuilder builder = new ProcessBuilder("solc", "--allow-paths", "../,./,.", "--pretty-json", "--combined-json","asm,bin-runtime", fileName);
 
         builder.inheritIO().redirectOutput(ProcessBuilder.Redirect.PIPE);
         Process p = builder.start();

src/main/resources/template/graph_template.html

@@ -155,6 +155,7 @@
     `;
 
     window["graphviz-$contract.contractName"] = d3.select("#graph-$contract.contractName").graphviz();
+    window["graphviz-$contract.contractName"].totalMemory(537395200);
 #end
 
     function render(dotSrc, gViz, contractName) {
@@ -304,9 +305,10 @@
         var startFound = false;
         var endFound = false;
         if (begin >= end) {
-            console.log("ERROR! : Start : " + begin + "is higher or equals than end: " + end);
-            editor.session.selection.setSelectionRange(new Range(0, 0, 0, 0), false);
-            return;
+            console.log("Swapping begin and end");
+            var temp = begin;
+            begin = end;
+            end = temp;
         }
         var lines = editor.session.doc.getAllLines();
         for(var i = 0; i < lines.length; i++) {