Example usage for org.objectweb.asm.tree ClassNode ClassNode

Introduction

In this page you can find the example usage for org.objectweb.asm.tree ClassNode ClassNode.

Prototype

public ClassNode(final int api)

Source Link

Document

Constructs a new ClassNode .

Usage

From source file:org.diorite.inject.controller.Transformer.java

License:Open Source License

Transformer(byte[] bytecode, ControllerClassData classData) {
    this.classData = classData;
    this.classNode = new ClassNode(Opcodes.ASM6);
    ClassReader cr = new ClassReader(bytecode);
    cr.accept(this.classNode, 0);
}

From source file:org.jacoco.core.analysis.DataflowAnalyzer.java

License:Open Source License

/**
 * Analyzes the class given as a ASM reader.
 * //from  w  w w  . j av a  2s  .c  o m
 * @param reader
 *            reader with class definitions
 */
@Override
public void analyzeClass(final ClassReader reader) {
    final ClassNode cn = new ClassNode(Opcodes.ASM5);
    reader.accept(cn, ClassReader.EXPAND_FRAMES);
    // do not analyze interfaces
    if ((cn.access & Opcodes.ACC_INTERFACE) != 0) {
        return;
    }

    final boolean[] probes = getProbes(CRC64.checksum(reader.b));

    if (probes == null) {
        return;
    }

    final ClassAnalyzer analyzer = new ClassAnalyzer(cn, probes, stringPool);

    analyzer.visit(cn);
    coverageVisitor.visitCoverage(analyzer.getCoverage());
}

From source file:org.sonar.java.bytecode.cfg.BytecodeCFGBuilderTest.java

License:Open Source License

@Test
public void test_all_instructions_are_part_of_CFG() throws Exception {
    SquidClassLoader squidClassLoader = new SquidClassLoader(
            Lists.newArrayList(new File("target/test-classes"), new File("target/classes")));
    File file = new File("src/test/java/org/sonar/java/bytecode/cfg/testdata/CFGTestData.java");
    CompilationUnitTree tree = (CompilationUnitTree) JavaParser.createParser().parse(file);
    SemanticModel.createFor(tree, squidClassLoader);
    Symbol.TypeSymbol testClazz = ((ClassTree) tree.types().get(0)).symbol();
    ClassReader cr = new ClassReader(squidClassLoader
            .getResourceAsStream(Convert.bytecodeName(CFGTestData.class.getCanonicalName()) + ".class"));
    ClassNode classNode = new ClassNode(BytecodeCompleter.ASM_API_VERSION);
    cr.accept(classNode, 0);//ww  w  .j  a  v a 2s .  c o m
    for (MethodNode method : classNode.methods) {
        Multiset<String> opcodes = Arrays.stream(method.instructions.toArray()).map(AbstractInsnNode::getOpcode)
                .filter(opcode -> opcode != -1).map(opcode -> Printer.OPCODES[opcode])
                .collect(Collectors.toCollection(HashMultiset::create));

        Symbol methodSymbol = Iterables.getOnlyElement(testClazz.lookupSymbols(method.name));
        BytecodeCFG bytecodeCFG = SETestUtils.bytecodeCFG(((Symbol.MethodSymbol) methodSymbol).signature(),
                squidClassLoader);
        Multiset<String> cfgOpcodes = cfgOpcodes(bytecodeCFG);
        assertThat(cfgOpcodes).isEqualTo(opcodes);
    }
}

From source file:org.tbot.core.bot.loader.asm.modifiers.adapters.tree.generic.AbstractClassTransform.java

License:Open Source License

@Override
public ClassNode queryProduct() {
    if (classBytes != null) {
        ClassReader cr = new ClassReader(classBytes);
        ClassNode cn = new ClassNode(ASM4);
        cr.accept(cn, 0);//from w w w  .  j  ava 2s  .  co m
        return cn;
    } else {
        throw new NullPointerException("ClassNode bytes is null!");
    }
}

From source file:org.wavescale.hotload.transformer.MethodTransformer.java

License:Open Source License

@Override
public byte[] transform(ClassLoader loader, String className, Class<?> classBeingRedefined,
        ProtectionDomain protectionDomain, byte[] classfileBuffer) throws IllegalClassFormatException {
    if (ClassUtil.inTabooListOfPackages(className)) {
        return classfileBuffer;
    }/*from  w ww  .j av a  2s. co  m*/

    ClassNode cn = new ClassNode(Opcodes.ASM5);
    ClassReader cr = new ClassReader(classfileBuffer);
    ClassWriter cw = new ClassWriter(cr, ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
    // create adapter for method insertion.
    cr.accept(cn, 0);

    // add the public var arg helper methods
    for (int i = 0; i < configManager.getNumberOfMethodsToBeAdded(); i++) {
        String methodName = ClassUtil.getPublicMethodName(classBeingRedefined, "MethodCall", i);
        if (canAddMethodName(cn, methodName)) {
            cn.methods.add(new VarArgsHelperMethod(classBeingRedefined, methodName));
        }
    }

    // get the byte code
    cn.accept(cw);
    classfileBuffer = cw.toByteArray();
    return classfileBuffer;
}