dart2js: switch to use dart2js_info/info.dart

pkg/compiler/tool/util.dart

-library compiler.tool.util;
-
-import 'package:compiler/src/info/info.dart';
-import 'graph.dart';
-
-/// Computes a graph of dependencies from [info].
-Graph<Info> graphFromInfo(AllInfo info) {
-  // Note: currently we build two graphs to debug the differences between to
-  // places where we collect this information in dump-info.
-  // TODO(sigmund): fix inconsistencies between graphs, stick with one of them.
-  // TODO(sigmund): create a concrete implementation of InfoGraph, instead of
-  // using the EdgeListGraph.
-  var g1 = new EdgeListGraph<Info>();
-  var g2 = new EdgeListGraph<Info>();
-  var g3 = new EdgeListGraph<Info>();
-  for (var f in info.functions) {
-    g1.addNode(f);
-    g3.addNode(f);
-    for (var g in f.uses) {
-      g1.addEdge(f, g.target);
-      g3.addEdge(f, g.target);
-    }
-    g2.addNode(f);
-    if (info.dependencies[f] != null) {
-      for (var g in info.dependencies[f]) {
-        g2.addEdge(f, g);
-        g3.addEdge(f, g);
-      }
-    }
-  }
-
-  for (var f in info.fields) {
-    g1.addNode(f);
-    g3.addNode(f);
-    for (var g in f.uses) {
-      g1.addEdge(f, g.target);
-      g3.addEdge(f, g.target);
-    }
-    g2.addNode(f);
-    if (info.dependencies[f] != null) {
-      for (var g in info.dependencies[f]) {
-        g2.addEdge(f, g);
-        g3.addEdge(f, g);
-      }
-    }
-  }
-
-  // Note: these checks right now show that 'uses' links are computed
-  // differently than 'deps' links
-  int more1 = 0;
-  int more2 = 0;
-  int more1b = 0;
-  int more2b = 0;
-  _sameEdges(f) {
-    var targets1 = g1.targetsOf(f).toSet();
-    var targets2 = g2.targetsOf(f).toSet();
-    var len1 = targets1.length;
-    var len2 = targets2.length;
-    if (len1 > len2) more1b++;
-    if (len1 < len2) more2b++;
-    var diff1 = targets1.difference(targets2);
-    var diff2 = targets2.difference(targets1);
-    if (diff1.isNotEmpty) {
-      more1++;
-    }
-    if (diff2.isNotEmpty) {
-      more2++;
-    }
-    return true;
-  }
-  info.functions.forEach(_sameEdges);
-  info.fields.forEach(_sameEdges);
-  if (more1 > 0 || more2 > 0 || more1b > 0 || more2b > 0) {
-    print("Dep graph is not consistent: $more1 $more2");
-  }
-
-  return g3;
-}
-
-/// Provide a unique long name associated with [info].
-// TODO(sigmund): guarantee that the name is actually unique.
-String longName(Info info) {
-  var sb = new StringBuffer();
-  helper(i) {
-    if (i.parent == null) {
-      // TODO(sigmund): ensure `i is LibraryInfo`, we still don't set parents
-      // for closure classes correctly.
-      sb.write('${i.name}..');
-    } else {
-      helper(i.parent);
-      sb.write('.${i.name}');
-    }
-  }
-  helper(info);
-  return sb.toString();
-}