Examples of org.glassfish.hk2.external.org.objectweb.asm.Label

Package org.glassfish.hk2.external.org.objectweb.asm

Examples of org.glassfish.hk2.external.org.objectweb.asm.Label

org.glassfish.hk2.utilities.DescriptorImpl
A label represents a position in the bytecode of a method. Labels are used for jump, goto, and switch instructions, and for try catch blocks. A label designates the instruction that is just after. Note however that there can be other elements between a label and the instruction it designates (such as other labels, stack map frames, line numbers, etc.). @author Eric Bruneton

    final class LineNumberRule extends Rule {


        @Override
        public final void begin(final String name, final Attributes attrs) {
            int line = Integer.parseInt(attrs.getValue("line"));
            Label start = getLabel(attrs.getValue("start"));
            getCodeVisitor().visitLineNumber(line, start);
        }

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        @Override
        public final void begin(final String element, final Attributes attrs) {
            String name = attrs.getValue("name");
            String desc = attrs.getValue("desc");
            String signature = attrs.getValue("signature");
            Label start = getLabel(attrs.getValue("start"));
            Label end = getLabel(attrs.getValue("end"));
            int var = Integer.parseInt(attrs.getValue("var"));
            getCodeVisitor().visitLocalVariable(name, desc, signature, start,
                    end, var);
        }

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        if (!classOptimizer.class$) {
            MethodVisitor mv = classOptimizer.visitMethod(ACC_STATIC
                    | ACC_SYNTHETIC, "class$",
                    "(Ljava/lang/String;)Ljava/lang/Class;", null, null);
            mv.visitCode();
            Label l0 = new Label();
            Label l1 = new Label();
            Label l2 = new Label();
            mv.visitTryCatchBlock(l0, l1, l2,
                    "java/lang/ClassNotFoundException");
            mv.visitLabel(l0);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKESTATIC, "java/lang/Class", "forName",
                    "(Ljava/lang/String;)Ljava/lang/Class;");
            mv.visitLabel(l1);
            mv.visitInsn(ARETURN);
            mv.visitLabel(l2);
            mv.visitMethodInsn(INVOKEVIRTUAL,
                    "java/lang/ClassNotFoundException", "getMessage",
                    "()Ljava/lang/String;");
            mv.visitVarInsn(ASTORE, 1);
            mv.visitTypeInsn(NEW, "java/lang/NoClassDefFoundError");
            mv.visitInsn(DUP);
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKESPECIAL, "java/lang/NoClassDefFoundError",
                    "<init>", "(Ljava/lang/String;)V");
            mv.visitInsn(ATHROW);
            mv.visitMaxs(3, 2);
            mv.visitEnd();


            classOptimizer.class$ = true;
        }


        String clsName = classOptimizer.clsName;
        mv.visitFieldInsn(GETSTATIC, clsName, fieldName, "Ljava/lang/Class;");
        Label elseLabel = new Label();
        mv.visitJumpInsn(IFNONNULL, elseLabel);
        mv.visitLdcInsn(ldcName.replace('/', '.'));
        mv.visitMethodInsn(INVOKESTATIC, clsName, "class$",
                "(Ljava/lang/String;)Ljava/lang/Class;");
        mv.visitInsn(DUP);
        mv.visitFieldInsn(PUTSTATIC, clsName, fieldName, "Ljava/lang/Class;");
        Label endLabel = new Label();
        mv.visitJumpInsn(GOTO, endLabel);
        mv.visitLabel(elseLabel);
        mv.visitFieldInsn(GETSTATIC, clsName, fieldName, "Ljava/lang/Class;");
        mv.visitLabel(endLabel);
    }

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     * @throws IllegalArgumentException if implementationClass is null
     */
    public static ActiveDescriptorBuilder activeLink(Class<?> implementationClass) throws IllegalArgumentException {
        if (implementationClass == null) throw new IllegalArgumentException();
        
        return new ActiveDescriptorBuilderImpl(implementationClass);
    }

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     * @throws IllegalArgumentException if implementationClass is null
     */
    public static DescriptorBuilder link(String implementationClass, boolean addToContracts) throws IllegalArgumentException {
        if (implementationClass == null) throw new IllegalArgumentException();
        
        return new DescriptorBuilderImpl(implementationClass, addToContracts);
    }

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     * 
     * @param contract The advertised contract to look for
     * @return The indexed filter that can be used to calls to ServiceLocator methods
     */
    public static IndexedFilter createContractFilter(String contract) {
        return new IndexedFilterImpl(contract, null);
    }

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     * 
     * @param name The name to look for
     * @return The indexed filter that can be used to calls to ServiceLocator methods
     */
    public static IndexedFilter createNameFilter(String name) {
        return new IndexedFilterImpl(null, name);
    }

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     * @param contract The advertised contract to look for
     * @param name The name to look for
     * @return The indexed filter that can be used to calls to ServiceLocator methods
     */
    public static IndexedFilter createNameAndContractFilter(String contract, String name) {
        return new IndexedFilterImpl(contract, name);
    }

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        if (descriptor.getLocatorId() == null) {
            throw new IllegalArgumentException("The descriptor must have a specific locator ID");
        }
        
        return new SpecificFilterImpl(contract, name,
                descriptor.getServiceId(),
                descriptor.getLocatorId());
        
    }

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        injectionMgr.inject(result, injector);
        return result;
    }
    
    private void parseInHk2LocatorOrig(BufferedReader reader, Map<String, String> cliCommandNames) throws IOException {
        DescriptorImpl desc = new DescriptorImpl();
        while (desc.readObject(reader)) {
            if (StringUtils.ok(desc.getName()) && desc.getAdvertisedContracts().contains(CLICommand.class.getName())) {
                cliCommandNames.put(desc.getName(), desc.getImplementation());
            }
        }
    }

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