Keeping and printing the information about bootmethods jdk8
authorJaroslav Tulach <jaroslav.tulach@apidesign.org>
Wed, 16 Jul 2014 07:57:22 +0200
branchjdk8
changeset 1642c178e0bdce5d
parent 1641 2111057af3b2
child 1644 d02324a82d80
Keeping and printing the information about bootmethods
rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeParser.java
rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java
     1.1 --- a/rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeParser.java	Thu Jul 10 08:17:52 2014 +0200
     1.2 +++ b/rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeParser.java	Wed Jul 16 07:57:22 2014 +0200
     1.3 @@ -499,7 +499,7 @@
     1.4       */
     1.5      private static class CPX {
     1.6  
     1.7 -        int cpx;
     1.8 +        final int cpx;
     1.9  
    1.10          CPX(int cpx) {
    1.11              this.cpx = cpx;
    1.12 @@ -511,9 +511,9 @@
    1.13       *
    1.14       * @author Sucheta Dambalkar (Adopted code from jdis)
    1.15       */
    1.16 -    private static class CPX2 {
    1.17 +    static class CPX2 {
    1.18  
    1.19 -        int cpx1, cpx2;
    1.20 +        final int cpx1, cpx2;
    1.21  
    1.22          CPX2(int cpx1, int cpx2) {
    1.23              this.cpx1 = cpx1;
    1.24 @@ -542,6 +542,7 @@
    1.25          private FieldData[] fields;
    1.26          private MethodData[] methods;
    1.27          private InnerClassData[] innerClasses;
    1.28 +        private BootMethodData[] bootMethods;
    1.29          private int attributes_count;
    1.30          private AttrData[] attrs;
    1.31          private int source_cpx = 0;
    1.32 @@ -628,7 +629,7 @@
    1.33                  } else if (getTag(name_cpx) == CONSTANT_UTF8
    1.34                      && getString(name_cpx).equals("BootstrapMethods")) {
    1.35                      AttrData attr = new AttrData(this);
    1.36 -                    readBootstrapMethods(in);
    1.37 +                    bootMethods = readBootstrapMethods(in);
    1.38                      attr.read(name_cpx);
    1.39                      attrs[k] = attr;
    1.40                  } else {
    1.41 @@ -640,9 +641,10 @@
    1.42              in.close();
    1.43          } // end ClassData.read()
    1.44  
    1.45 -        void readBootstrapMethods(DataInputStream in) throws IOException {
    1.46 -            int attr_len = in.readInt();  //attr_length
    1.47 +        BootMethodData[] readBootstrapMethods(DataInputStream in) throws IOException {
    1.48 +            int attr_len = in.readInt();  //attr_lengt
    1.49              int number = in.readShort();
    1.50 +            BootMethodData[] arr = new BootMethodData[number];
    1.51              for (int i = 0; i < number; i++) {
    1.52                  int ref = in.readShort();
    1.53                  int len = in.readShort();
    1.54 @@ -650,13 +652,9 @@
    1.55                  for (int j = 0; j < len; j++) {
    1.56                      args[j] = in.readShort();
    1.57                  }
    1.58 -                
    1.59 -                System.err.print("ref: " + ref + " len: " + len + ":");
    1.60 -                for (int j = 0; j < len; j++) {
    1.61 -                    System.err.print(" " + args[j]);
    1.62 -                }
    1.63 -                System.err.println();
    1.64 +                arr[i] = new BootMethodData(this, ref, args);
    1.65              }
    1.66 +            return arr;
    1.67          }
    1.68          
    1.69          /**
    1.70 @@ -1144,8 +1142,12 @@
    1.71  
    1.72                  case CONSTANT_NAMEANDTYPE:
    1.73                      return getName(((CPX2) x).cpx1) + ":" + StringValue(((CPX2) x).cpx2);
    1.74 +                case CONSTANT_METHODHANDLE:
    1.75 +                    return "K" + ((CPX2)x).cpx1 + "@" + stringValue(((CPX2)x).cpx2, textual);
    1.76 +                case CONSTANT_METHODTYPE:
    1.77 +                    return stringValue(((CPX)x).cpx, true);
    1.78                  default:
    1.79 -                    return "UnknownTag"; //TBD
    1.80 +                    return "UnknownTag" + tag; //TBD
    1.81              }
    1.82          }
    1.83  
    1.84 @@ -1228,6 +1230,10 @@
    1.85                  return null;
    1.86              }
    1.87          }
    1.88 +        
    1.89 +        public String getBootMethod(int indx) {
    1.90 +            return bootMethods != null ? bootMethods[indx].toString() : null;
    1.91 +        }
    1.92  
    1.93          /**
    1.94           * Returns total constant pool entry count.
    1.95 @@ -1586,6 +1592,31 @@
    1.96              return accflags;
    1.97          }
    1.98      } // end InnerClassData
    1.99 +    
   1.100 +    private static class BootMethodData {
   1.101 +        private final ClassData clazz;
   1.102 +        private final int method;
   1.103 +        private final int[] args;
   1.104 +
   1.105 +        private BootMethodData(ClassData clazz, int method, int[] args) {
   1.106 +            this.clazz = clazz;
   1.107 +            this.method = method;
   1.108 +            this.args = args;
   1.109 +        }
   1.110 +
   1.111 +        @Override
   1.112 +        public String toString() {
   1.113 +            StringBuilder sb = new StringBuilder();
   1.114 +            sb.append(clazz.stringValue(method, true));
   1.115 +            sb.append('(');
   1.116 +            for (int indx : args) {
   1.117 +                sb.append("\n  ");
   1.118 +                sb.append(clazz.stringValue(indx, true));
   1.119 +            }
   1.120 +            sb.append(')');
   1.121 +            return sb.toString();
   1.122 +        }
   1.123 +    }
   1.124  
   1.125      /**
   1.126       * Strores LineNumberTable data information.
     2.1 --- a/rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java	Thu Jul 10 08:17:52 2014 +0200
     2.2 +++ b/rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java	Wed Jul 16 07:57:22 2014 +0200
     2.3 @@ -1054,6 +1054,9 @@
     2.4                  case opc_invokedynamic: {
     2.5                      int indx = readUShortArg(byteCodes, i);
     2.6                      System.err.println("invoke dynamic: " + indx);
     2.7 +                    ByteCodeParser.CPX2 c2 = jc.getCpoolEntry(indx);
     2.8 +                    System.err.println("  bootmethod: " + jc.getBootMethod(c2.cpx1));
     2.9 +                    System.err.println("  name and type: " + jc.stringValue(c2.cpx2, true));
    2.10                      emit(smapper, this, "throw 'Invoke dynamic: ' + @1;", "" + indx);
    2.11                      i += 4;
    2.12                      break;