Java Code Examples for jdk.internal.org.objectweb.asm.Opcodes#ASM5

private static boolean hasModuleTarget(InputStream in) throws IOException {
    ModuleTargetAttribute[] modTargets = new ModuleTargetAttribute[1];
    ClassVisitor cv = new ClassVisitor(Opcodes.ASM5) {
        @Override
        public void visitAttribute(Attribute attr) {
            if (attr instanceof ModuleTargetAttribute) {
                modTargets[0] = (ModuleTargetAttribute)attr;
            }
        }
    };

    // prototype of attributes that should be parsed
    Attribute[] attrs = new Attribute[] {
        new ModuleTargetAttribute()
    };

    // parse module-info.class
    ClassReader cr = new ClassReader(in);
    cr.accept(cv, attrs, 0);
    return modTargets[0] != null && modTargets[0].targetPlatform() != null;
}
 

/**
 * Method instruction. See
 * {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitMethodInsn}.
 */
public void visitMethodInsn(final int opcode, final String owner,
        final String name, final String desc, final boolean itf) {
    if (api < Opcodes.ASM5) {
        if (itf != (opcode == Opcodes.INVOKEINTERFACE)) {
            throw new IllegalArgumentException(
                    "INVOKESPECIAL/STATIC on interfaces require ASM 5");
        }
        visitMethodInsn(opcode, owner, name, desc);
        return;
    }
    throw new RuntimeException("Must be overriden");
}
 

@Override
public void visitMethodInsn(final int opcode, final String owner,
        final String name, final String desc, final boolean itf) {
    if (api < Opcodes.ASM5) {
        super.visitMethodInsn(opcode, owner, name, desc, itf);
        return;
    }
    doVisitMethodInsn(opcode, owner, name, desc, itf);
}
 

@Deprecated
@Override
public void visitMethodInsn(final int opcode, final String owner,
        final String name, final String desc) {
    if (api >= Opcodes.ASM5) {
        super.visitMethodInsn(opcode, owner, name, desc);
        return;
    }
    doVisitMethodInsn(opcode, owner, name, desc,
            opcode == Opcodes.INVOKEINTERFACE);
}
 

@Deprecated
@Override
public void visitMethodInsn(final int opcode, final String owner,
        final String name, final String desc) {
    if (api >= Opcodes.ASM5) {
        super.visitMethodInsn(opcode, owner, name, desc);
        return;
    }
    doVisitMethodInsn(opcode, owner, name, desc,
            opcode == Opcodes.INVOKEINTERFACE);
}
 

public void invokestatic(final String owner, final String name,
        final String desc, final boolean itf) {
    if (api < Opcodes.ASM5) {
        if (itf) {
            throw new IllegalArgumentException(
                    "INVOKESTATIC on interfaces require ASM 5");
        }
        invokestatic(owner, name, desc);
        return;
    }
    mv.visitMethodInsn(Opcodes.INVOKESTATIC, owner, name, desc, itf);
}
 

@Override
public void visitMethodInsn(final int opcode, final String owner,
        final String name, final String desc, final boolean itf) {
    if (api < Opcodes.ASM5) {
        super.visitMethodInsn(opcode, owner, name, desc, itf);
        return;
    }
    doVisitMethodInsn(opcode, owner, name, desc, itf);
}
 

@Deprecated
public void invokevirtual(final String owner, final String name,
        final String desc) {
    if (api >= Opcodes.ASM5) {
        invokevirtual(owner, name, desc, false);
        return;
    }
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, owner, name, desc);
}
 

@Deprecated
@Override
public void visitMethodInsn(final int opcode, final String owner,
        final String name, final String desc) {
    if (api >= Opcodes.ASM5) {
        super.visitMethodInsn(opcode, owner, name, desc);
        return;
    }
    doVisitMethodInsn(opcode, owner, name, desc,
            opcode == Opcodes.INVOKEINTERFACE);
}
 

@Override
public void visitMethodInsn(final int opcode, final String owner,
        final String name, final String desc, final boolean itf) {
    if (api < Opcodes.ASM5) {
        super.visitMethodInsn(opcode, owner, name, desc, itf);
        return;
    }
    doVisitMethodInsn(opcode, owner, name, desc, itf);
}
 

public CodeSizeEvaluator(final MethodVisitor mv) {
    this(Opcodes.ASM5, mv);
}
 

public TraceAnnotationVisitor(final AnnotationVisitor av, final Printer p) {
    super(Opcodes.ASM5, av);
    this.p = p;
}
 

/**
 * Constructs a new {@link SignatureWriter} object.
 */
public SignatureWriter() {
    super(Opcodes.ASM5);
}
 

public CodeSizeEvaluator(final MethodVisitor mv) {
    this(Opcodes.ASM5, mv);
}
 

public TraceSignatureVisitor(final int access) {
    super(Opcodes.ASM5);
    isInterface = (access & Opcodes.ACC_INTERFACE) != 0;
    this.declaration = new StringBuffer();
}
 

/**
 * Constructs a new {@link CheckFieldAdapter}. <i>Subclasses must not use
 * this constructor</i>. Instead, they must use the
 * {@link #CheckFieldAdapter(int, FieldVisitor)} version.
 *
 * @param fv
 *            the field visitor to which this adapter must delegate calls.
 * @throws IllegalStateException
 *             If a subclass calls this constructor.
 */
public CheckFieldAdapter(final FieldVisitor fv) {
    this(Opcodes.ASM5, fv);
    if (getClass() != CheckFieldAdapter.class) {
        throw new IllegalStateException();
    }
}
 

/**
 * Constructs a new {@link SignatureVisitor}.
 *
 * @param api
 *            the ASM API version implemented by this visitor. Must be one
 *            of {@link Opcodes#ASM4} or {@link Opcodes#ASM5}.
 */
public SignatureVisitor(final int api) {
    if (api != Opcodes.ASM4 && api != Opcodes.ASM5) {
        throw new IllegalArgumentException();
    }
    this.api = api;
}
 

/**
 * Constructs a new {@link CheckMethodAdapter} object. This method adapter
 * will not perform any data flow check (see
 * {@link #CheckMethodAdapter(int,String,String,MethodVisitor,Map)}).
 * <i>Subclasses must not use this constructor</i>. Instead, they must use
 * the {@link #CheckMethodAdapter(int, MethodVisitor, Map)} version.
 *
 * @param mv
 *            the method visitor to which this adapter must delegate calls.
 * @param labels
 *            a map of already visited labels (in other methods).
 * @throws IllegalStateException
 *             If a subclass calls this constructor.
 */
public CheckMethodAdapter(final MethodVisitor mv,
        final Map<Label, Integer> labels) {
    this(Opcodes.ASM5, mv, labels);
    if (getClass() != CheckMethodAdapter.class) {
        throw new IllegalStateException();
    }
}
 

/**
 * Creates a new {@link SerialVersionUIDAdder}. <i>Subclasses must not use
 * this constructor</i>. Instead, they must use the
 * {@link #SerialVersionUIDAdder(int, ClassVisitor)} version.
 *
 * @param cv
 *            a {@link ClassVisitor} to which this visitor will delegate
 *            calls.
 * @throws IllegalStateException
 *             If a subclass calls this constructor.
 */
public SerialVersionUIDAdder(final ClassVisitor cv) {
    this(Opcodes.ASM5, cv);
    if (getClass() != SerialVersionUIDAdder.class) {
        throw new IllegalStateException();
    }
}
 

/**
 * Constructs a new {@link NashornTextifier}. <i>Subclasses must not use this
 * constructor</i>. Instead, they must use the {@link #NashornTextifier(int)}
 * version.
 * @param env script environment
 * @param cr a customized classreader for gathering, among other things, label
 * information
 */
public NashornTextifier(final ScriptEnvironment env, final NashornClassReader cr) {
    this(Opcodes.ASM5);
    this.env = env;
    this.cr = cr;
}