Package org.objectweb.asm.signature

Examples of org.objectweb.asm.signature.SignatureWriter

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  public void test() {
    String s = "Ljava/util/HashMap<TK;TV;>.HashIterator<TK;>;";
    Map<String, String> renaming = new HashMap<String, String>();
    renaming.put("java/util/HashMap", "A");
    renaming.put("java/util/HashMap.HashIterator", "B");
    SignatureWriter sw = new SignatureWriter();
    SignatureVisitor sa = new RenameSignatureAdapter(sw, renaming);
    SignatureReader sr = new SignatureReader(s);
    sr.acceptType(sa);
    assertEquals("LA<TK;TV;>.B<TK;>;", sw.toString());
  }
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    private void begin() {
        owner.visitInnerClass(action.getInternalName(), owner.className, simpleName, Opcodes.ACC_PRIVATE
            | Opcodes.ACC_STATIC);

        final SignatureWriter type = new SignatureWriter();
        final SignatureVisitor actionImplemented = type.visitInterface();
        actionImplemented.visitClassType(actionInterface.getInternalName());
        final SignatureVisitor visitTypeArgument = actionImplemented.visitTypeArgument('=');
        final SignatureReader result = new SignatureReader(privilizer().wrap(methd.getReturnType()).getDescriptor());
        result.accept(visitTypeArgument);
        actionImplemented.visitEnd();

        final String signature = type.toString();

        visit(Opcodes.V1_5, Opcodes.ACC_SUPER | Opcodes.ACC_SYNTHETIC | Opcodes.ACC_FINAL, action.getInternalName(),
            signature, Type.getType(Object.class).getInternalName(),
            new String[] { actionInterface.getInternalName() });
    }
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    public String mapSignature(String signature, boolean typeSignature) {
        if (signature == null) {
            return null;
        }
        SignatureReader r = new SignatureReader(signature);
        SignatureWriter w = new SignatureWriter();
        SignatureVisitor a = createRemappingSignatureAdapter(w);
        if (typeSignature) {
            r.acceptType(a);
        } else {
            r.accept(a);
        }
        return w.toString();
    }
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    public String mapSignature(String signature, boolean typeSignature) {
        if (signature == null) {
            return null;
        }
        SignatureReader r = new SignatureReader(signature);
        SignatureWriter w = new SignatureWriter();
        SignatureVisitor a = createRemappingSignatureAdapter(w);
        if (typeSignature) {
            r.acceptType(a);
        } else {
            r.accept(a);
        }
        return w.toString();
    }
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* Util class for generating class signature.
*/
public final class Signatures {

  public static String getClassSignature(TypeToken<?> interfaceType) {
    SignatureWriter signWriter = new SignatureWriter();
    SignatureVisitor sv = signWriter.visitSuperclass();
    sv.visitClassType(Type.getInternalName(Object.class));
    sv.visitEnd();

    SignatureVisitor interfaceVisitor = sv.visitInterface();
    interfaceVisitor.visitClassType(Type.getInternalName(interfaceType.getRawType()));

    if (interfaceType.getType() instanceof ParameterizedType) {
      for (java.lang.reflect.Type paramType : ((ParameterizedType) interfaceType.getType()).getActualTypeArguments()) {
        interfaceVisitor.visitTypeArgument(SignatureVisitor.INSTANCEOF);
        visitTypeSignature(interfaceType.resolveType(paramType), interfaceVisitor);
      }
    }

    sv.visitEnd();
    return signWriter.toString();
  }
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   *              It's useful if the method is parameterized so that parameterize type information can be passed
   *              through the type tokens.
   * @return A method signature string
   */
  public static String getMethodSignature(Method method, TypeToken<?>...types) {
    SignatureWriter signWriter = new SignatureWriter();

    Type[] argumentTypes = method.getArgumentTypes();

    for (int i = 0; i < argumentTypes.length; i++) {
      SignatureVisitor sv = signWriter.visitParameterType();
      if (types[i] != null) {
        visitTypeSignature(types[i], sv);
      } else {
        sv.visitClassType(argumentTypes[i].getInternalName());
        sv.visitEnd();
      }
    }

    signWriter.visitReturnType().visitBaseType('V');

    return signWriter.toString();
  }
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    return signWriter.toString();
  }


  public static String getFieldSignature(TypeToken<?> fieldType) {
    SignatureWriter signWriter = new SignatureWriter();
    signWriter.visitClassType(Type.getInternalName(fieldType.getRawType()));

    if (fieldType.getType() instanceof ParameterizedType) {
      for (java.lang.reflect.Type paramType : ((ParameterizedType) fieldType.getType()).getActualTypeArguments()) {
        signWriter.visitTypeArgument(SignatureVisitor.INSTANCEOF);
        visitTypeSignature(fieldType.resolveType(paramType), signWriter);
      }
    }
    signWriter.visitEnd();
    return signWriter.toString();
  }
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  /**
   * @return the getter signature {@code <T> T get(Object object)}
   */
  private String getterSignature() {
    SignatureWriter writer = new SignatureWriter();
    writer.visitFormalTypeParameter("T");
    SignatureVisitor sv = writer.visitClassBound();
    sv.visitClassType(Type.getInternalName(Object.class));
    sv.visitEnd();

    sv = writer.visitParameterType();
    sv.visitClassType(Type.getInternalName(Object.class));
    sv.visitEnd();

    sv = sv.visitReturnType();
    sv.visitTypeVariable("T");

    return writer.toString();
  }
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  /**
   * @return the setter signature {@code <T> void set(Object object, T value)}
   */
  private String setterSignature() {
    SignatureWriter writer = new SignatureWriter();
    writer.visitFormalTypeParameter("T");
    SignatureVisitor sv = writer.visitClassBound();
    sv.visitClassType(Type.getInternalName(Object.class));
    sv.visitEnd();

    sv = writer.visitParameterType();
    sv.visitClassType(Type.getInternalName(Object.class));
    sv.visitEnd();

    sv = writer.visitParameterType();
    sv.visitTypeVariable("T");

    sv.visitReturnType().visitBaseType('V');

    return writer.toString();
  }
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                String superName,
                String[] interfaces)
            {
                if (signature != null) {
                    SignatureReader sr = new SignatureReader(signature);
                    SignatureWriter sw = new SignatureWriter();
                    sr.accept(new CheckSignatureAdapter(CheckSignatureAdapter.CLASS_SIGNATURE,
                            sw));
                    assertEquals(signature, sw.toString());
                }
            }

            public FieldVisitor visitField(
                int access,
                String name,
                String desc,
                String signature,
                Object value)
            {
                if (signature != null) {
                    SignatureReader sr = new SignatureReader(signature);
                    SignatureWriter sw = new SignatureWriter();
                    sr.acceptType(new CheckSignatureAdapter(CheckSignatureAdapter.TYPE_SIGNATURE,
                            sw));
                    assertEquals(signature, sw.toString());
                }
                return null;
            }

            public MethodVisitor visitMethod(
                int access,
                String name,
                String desc,
                String signature,
                String[] exceptions)
            {
                if (signature != null) {
                    SignatureReader sr = new SignatureReader(signature);
                    SignatureWriter sw = new SignatureWriter();
                    sr.accept(new CheckSignatureAdapter(CheckSignatureAdapter.METHOD_SIGNATURE,
                            sw));
                    assertEquals(signature, sw.toString());
                }
                return null;
            }

        }, 0);
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