Example usage for org.objectweb.asm Opcodes V1_8

Introduction

In this page you can find the example usage for org.objectweb.asm Opcodes V1_8.

Prototype

int V1_8

To view the source code for org.objectweb.asm Opcodes V1_8.

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Usage

From source file:br.usp.each.saeg.badua.core.internal.ContentTypeDetector.java

License:Open Source License

private static int determineType(final InputStream in) throws IOException {
    final int header = readInt(in);
    switch (header) {
    case ZIPFILE:
        return ZIPFILE;
    case PACK200FILE:
        return PACK200FILE;
    case CLASSFILE:
        // also verify version to distinguish from Mach Object files:
        switch (readInt(in)) {
        case Opcodes.V1_1:
        case Opcodes.V1_2:
        case Opcodes.V1_3:
        case Opcodes.V1_4:
        case Opcodes.V1_5:
        case Opcodes.V1_6:
        case Opcodes.V1_7:
        case Opcodes.V1_8:
            return CLASSFILE;
        }/*from   w  w  w .jav a2  s .c o m*/
    }
    if ((header & 0xffff0000) == GZFILE) {
        return GZFILE;
    }
    return UNKNOWN;
}

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From source file:com.android.build.gradle.shrinker.parser.ProguardFlags.java

License:Apache License

public void target(@NonNull String target) {
    int version;/* w w w  .  j  a v  a2 s. c o m*/
    switch (target) {
    case "8":
    case "1.8":
        version = Opcodes.V1_8;
        break;
    case "7":
    case "1.7":
        version = Opcodes.V1_7;
        break;
    case "6":
    case "1.6":
        version = Opcodes.V1_6;
        break;
    case "5":
    case "1.5":
        version = Opcodes.V1_5;
        break;
    case "1.4":
        version = Opcodes.V1_4;
        break;
    case "1.3":
        version = Opcodes.V1_3;
        break;
    case "1.2":
        version = Opcodes.V1_2;
        break;
    case "1.1":
        version = Opcodes.V1_1;
        break;
    default:
        throw new AssertionError("Unknown target " + target);
    }

    this.bytecodeVersion = new BytecodeVersion(version);
}

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From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

/**
 * Creates a new {@link ClassWriter}./*from   w w  w. j  a v a2  s . co  m*/
 * @param aClass the target class
 * @param superClass the super class
 * @param interfaces the interface types
 * @return the created class writer
 */
public static ClassWriter newWriter(ClassDescription aClass, Class<?> superClass, Class<?>... interfaces) {
    Arguments.require(superClass.isInterface() == false);
    Lang.forEach(interfaces, c -> Arguments.require(c.isInterface()));
    ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
    writer.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC, aClass.getInternalName(), null,
            typeOf(superClass).getInternalName(),
            Stream.of(interfaces).map(c -> typeOf(c).getInternalName()).toArray(String[]::new));
    return writer;
}

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From source file:com.facebook.buck.jvm.java.abi.AbiFilteringClassVisitorTest.java

License:Apache License

private static void visitClass(ClassVisitor cv, String name) {
    cv.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC, name, null, "java/lang/Object", null);
}

---

From source file:com.facebook.buck.jvm.java.abi.ClassVisitorDriverFromElement.java

License:Apache License

/** Gets the class file version corresponding to the given source version constant. */
private static int sourceVersionToClassFileVersion(SourceVersion version) {
    switch (version) {
    case RELEASE_0:
        return Opcodes.V1_1; // JVMS8 4.1: 1.0 and 1.1 both support version 45.3 (Opcodes.V1_1)
    case RELEASE_1:
        return Opcodes.V1_1;
    case RELEASE_2:
        return Opcodes.V1_2;
    case RELEASE_3:
        return Opcodes.V1_3;
    case RELEASE_4:
        return Opcodes.V1_4;
    case RELEASE_5:
        return Opcodes.V1_5;
    case RELEASE_6:
        return Opcodes.V1_6;
    case RELEASE_7:
        return Opcodes.V1_7;
    case RELEASE_8:
        return Opcodes.V1_8;
    default://from   w ww  .jav a  2 s .  c  om
        throw new IllegalArgumentException(String.format("Unexpected source version: %s", version));
    }
}

---

From source file:com.facebook.buck.jvm.java.abi.SourceVersionUtils.java

License:Apache License

/** Gets the class file version corresponding to the given source version constant. */
public static int sourceVersionToClassFileVersion(SourceVersion version) {
    switch (version) {
    case RELEASE_0:
        return Opcodes.V1_1; // JVMS8 4.1: 1.0 and 1.1 both support version 45.3 (Opcodes.V1_1)
    case RELEASE_1:
        return Opcodes.V1_1;
    case RELEASE_2:
        return Opcodes.V1_2;
    case RELEASE_3:
        return Opcodes.V1_3;
    case RELEASE_4:
        return Opcodes.V1_4;
    case RELEASE_5:
        return Opcodes.V1_5;
    case RELEASE_6:
        return Opcodes.V1_6;
    case RELEASE_7:
        return Opcodes.V1_7;
    case RELEASE_8:
        return Opcodes.V1_8;
    default:/*w w w.  j av  a  2s.c o  m*/
        throw new IllegalArgumentException(String.format("Unexpected source version: %s", version));
    }
}

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From source file:com.google.gwt.dev.shell.rewrite.HostedModeClassRewriter.java

License:Apache License

/**
 * Performs rewriting transformations on a class.
 *
 * @param typeOracle a typeOracle modeling the user classes
 * @param className the name of the class
 * @param classBytes the bytes of the class
 * @param anonymousClassMap a map between the anonymous class names of java
 *          compiler used to compile code and jdt. Emma-specific.
 *//*from  www.j a  va2 s. c om*/
public byte[] rewrite(TypeOracle typeOracle, String className, byte[] classBytes,
        Map<String, String> anonymousClassMap) {
    Event classBytesRewriteEvent = SpeedTracerLogger.start(DevModeEventType.CLASS_BYTES_REWRITE, "Class Name",
            className);
    String desc = toDescriptor(className);
    assert (!jsoIntfDescs.contains(desc));

    // The ASM model is to chain a bunch of visitors together.
    ClassWriter writer = new ClassWriter(0);
    ClassVisitor v = writer;

    // v = new CheckClassAdapter(v);
    // v = new TraceClassVisitor(v, new PrintWriter(System.out));
    v = new UseMirroredClasses(v, className);

    v = new RewriteSingleJsoImplDispatches(v, typeOracle, jsoData);

    v = new RewriteRefsToJsoClasses(v, jsoIntfDescs, mapper);

    if (jsoImplDescs.contains(desc)) {
        v = WriteJsoImpl.create(v, desc, jsoIntfDescs, mapper, jsoData);
    }

    v = new RewriteJsniMethods(v, anonymousClassMap);

    if (Double.parseDouble(System.getProperty("java.class.version")) < Opcodes.V1_8) {
        // TODO(cromwellian) implement Retrolambda?
        v = new ForceClassVersion15(v);
    }

    new ClassReader(classBytes).accept(v, 0);
    classBytesRewriteEvent.end();
    return writer.toByteArray();
}

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From source file:de.thetaphi.forbiddenapis.AsmUtils.java

License:Apache License

/** Utility method to load class files of Java 9 by patching them, so ASM can read them. */
public static ClassReader readAndPatchClass(InputStream in) throws IOException {
    final byte[] b = new byte[8];
    final PushbackInputStream pbin = new PushbackInputStream(in, b.length);
    for (int upto = 0; upto < b.length;) {
        final int read = pbin.read(b, upto, b.length - upto);
        if (read == -1)
            throw new EOFException("Not enough bytes available to read header of class file.");
        upto += read;//  w w  w .j a  v  a  2 s.co m
    }
    patchClassMajorVersion(b, Opcodes.V1_8 + 1, Opcodes.V1_8);
    pbin.unread(b);
    return new ClassReader(pbin);
}

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From source file:org.apache.aries.proxy.impl.ProxyUtils.java

License:Apache License

/**
 * Get the java version to be woven at./*w ww .  j ava 2s.c o  m*/
 * @return
 */
public static int getWeavingJavaVersion() {
    if (weavingJavaVersion == -1) {
        //In order to avoid an inconsistent stack error the version of the woven byte code needs to match
        //the level of byte codes in the original class
        switch (JAVA_CLASS_VERSION) {
        case Opcodes.V1_8:
            LOGGER.debug("Weaving to Java 8");
            weavingJavaVersion = Opcodes.V1_8;
            break;
        case Opcodes.V1_7:
            LOGGER.debug("Weaving to Java 7");
            weavingJavaVersion = Opcodes.V1_7;
            break;
        case Opcodes.V1_6:
            LOGGER.debug("Weaving to Java 6");
            weavingJavaVersion = Opcodes.V1_6;
            break;
        case Opcodes.V1_5:
            LOGGER.debug("Weaving to Java 5");
            weavingJavaVersion = Opcodes.V1_5;
            break;
        default:
            //aries should work with Java 5 or above - also will highlight when a higher level (and unsupported) level of Java is released
            throw new IllegalArgumentException("Invalid Java version " + JAVA_CLASS_VERSION);
        }
    }
    return weavingJavaVersion;
}

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From source file:org.codehaus.groovy.classgen.asm.WriterController.java

License:Apache License

private static int chooseBytecodeVersion(final boolean invokedynamic, final boolean previewFeatures,
        final String targetBytecode) {
    Integer bytecodeVersion = CompilerConfiguration.JDK_TO_BYTECODE_VERSION_MAP.get(targetBytecode);

    if (invokedynamic && bytecodeVersion < Opcodes.V1_8) {
        return Opcodes.V1_8;
    } else {//from  ww  w . ja va 2  s . c  o  m
        if (null != bytecodeVersion) {
            return previewFeatures ? bytecodeVersion | Opcodes.V_PREVIEW : bytecodeVersion;
        }
    }

    throw new GroovyBugError("Bytecode version [" + targetBytecode + "] is not supported by the compiler");
}

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