Example usage for org.objectweb.asm Opcodes INVOKESPECIAL

List of usage examples for org.objectweb.asm Opcodes INVOKESPECIAL

  1. HOME
  2. Java
  3. org.objectweb.asm
  4. org.objectweb.asm.*
  5. Opcodes
  6. INVOKESPECIAL

Introduction

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

Prototype

int INVOKESPECIAL

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

Click Source Link

Usage

From source file:org.hua.ast.visitors.BytecodeGeneratorASTVisitor.java

@Override
public void visit(ClassDefinition node) throws ASTVisitorException {
    ClassNode classNode = new ClassNode();
    cn = classNode;//from  w w w  .  ja  v a 2  s .  c  om

    cn.version = Opcodes.V1_5;
    cn.superName = "java/lang/Object";
    cn.name = node.getIdentifier();
    cn.access = Opcodes.ACC_PUBLIC;

    // create constructor
    mn = new MethodNode(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
    mn.instructions.add(new VarInsnNode(Opcodes.ALOAD, 0));
    mn.instructions.add(new MethodInsnNode(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false));
    mn.instructions.add(new InsnNode(Opcodes.RETURN));

    mn.maxLocals = 1;
    mn.maxStack = 1;
    classNode.methods.add(mn);

    node.getFfDefinitions().accept(this);

    // IMPORTANT: this should be dynamically calculated
    // use COMPUTE_MAXS when computing the ClassWriter,
    // e.g. new ClassWriter(ClassWriter.COMPUTE_MAXS)
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    //         ClassVisitor ca = new CheckClassAdapter(cw);
    //         cn.accept(new CheckClassAdapter(ca));
    TraceClassVisitor cv = new TraceClassVisitor(cw, new PrintWriter(System.out));

    cn.accept(cv);
    //get code
    byte code[] = cw.toByteArray();

    Logger.getLogger(BytecodeGeneratorASTVisitor.class.getName())
            .info("Writing " + node.getIdentifier() + " class to .class file");
    // update to file
    FileOutputStream fos;
    try {
        fos = new FileOutputStream(node.getIdentifier() + ".class");
        fos.write(code);
        fos.close();
    } catch (FileNotFoundException ex) {
        Logger.getLogger(BytecodeGeneratorASTVisitor.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(BytecodeGeneratorASTVisitor.class.getName()).log(Level.SEVERE, null, ex);
    }

    cn = null;
    System.out.println("##### finished writing to file");

}

From source file:org.hua.ast.visitors.BytecodeGeneratorASTVisitor.java

@Override
public void visit(NewIdentifierExpression node) throws ASTVisitorException {
    if (node.getExpressions() != null) {
        node.getExpressions().accept(this);
    }/*from w  ww.  ja  v  a  2  s. co m*/
    mn.instructions.add(new TypeInsnNode(Opcodes.NEW, node.getIdentifier()));
    mn.instructions.add(new InsnNode(Opcodes.DUP));
    //@TODO: fix calling parameters
    if (node.getExpressions() != null) {
        if (node.getExpressions().getExpressions().isEmpty() && Registry.getInstance()
                .classExists(Type.getType("Lorg/hua/customclasses/" + node.getIdentifier() + ";"))) {
            System.out.println("222222222222222222222222222222222222222222 "
                    + ASTUtils.getSafeType(node).getInternalName());
            mn.instructions.add(new MethodInsnNode(Opcodes.INVOKESPECIAL,
                    ASTUtils.getSafeType(node).getInternalName(), "<init>", "()V", false));
        } else //get parameter types and then give that as the signature
        if (Registry.getInstance()
                .classExists(Type.getType("Lorg/hua/customclasses/" + node.getIdentifier() + ";"))) {
            SymTable<SymTableEntry> existingClass = Registry.getInstance()
                    .getExistingClass(Type.getType("Lorg/hua/customclasses/" + node.getIdentifier() + ";"));
            SymTableEntry lookup = existingClass.lookup(node.getIdentifier());
            if (lookup != null) {
                Type[] types = lookup.getParametersTypes();
                mn.instructions.add(
                        new MethodInsnNode(Opcodes.INVOKEVIRTUAL, ASTUtils.getSafeType(node).getInternalName(),
                                node.getIdentifier(), Type.getMethodDescriptor(Type.VOID_TYPE, types), false));
            } else {
                ASTUtils.error(node, "Constructor not found");
            }
        } else {
            ASTUtils.error(node, "Problem with called constructor");
        }
    }
    LocalIndexPool pool = ASTUtils.getSafeLocalIndexPool(fd);
    int localIndex = pool.getLocalIndex();
    System.out.println("^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ "
            + localIndex);
    mn.instructions.add(new VarInsnNode(Opcodes.ASTORE, localIndex));
}

From source file:org.jacoco.core.internal.analysis.filter.EnumEmptyConstructorFilterTest.java

License:Open Source License

@Test
public void should_filter() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, Opcodes.ACC_PRIVATE, "<init>",
            "(Ljava/lang/String;I)V", null, null);
    m.visitVarInsn(Opcodes.ALOAD, 0);//w  ww.j  a v a2 s . com
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitVarInsn(Opcodes.ILOAD, 2);
    m.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Enum", "<init>", "(Ljava/lang/String;I)V", false);
    m.visitInsn(Opcodes.RETURN);
    context.superClassName = "java/lang/Enum";

    filter.filter(m, context, output);

    assertIgnored(new Range(m.instructions.getFirst(), m.instructions.getLast()));
}

From source file:org.jacoco.core.internal.analysis.filter.EnumEmptyConstructorFilterTest.java

License:Open Source License

/**
 * <code><pre>//from   w  w w. j  a va2s .c  o m
 * enum E {
 *   ;
 *   private E() {
 *     ...
 *   }
 * }
 * </pre></code>
 */
@Test
public void should_not_filter_non_empty_constructor() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, Opcodes.ACC_PRIVATE, "<init>",
            "(Ljava/lang/String;I)V", null, null);
    m.visitVarInsn(Opcodes.ALOAD, 0);
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitVarInsn(Opcodes.ILOAD, 2);
    m.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Enum", "<init>", "(Ljava/lang/String;I)V", false);
    m.visitInsn(Opcodes.NOP);
    m.visitInsn(Opcodes.RETURN);
    context.superClassName = "java/lang/Enum";

    filter.filter(m, context, output);

    assertIgnored();
}

From source file:org.jacoco.core.internal.analysis.filter.EnumEmptyConstructorFilterTest.java

License:Open Source License

/**
 * <code><pre>/* w ww  . jav a  2 s .c o m*/
 * enum E {
 *   ;
 *   private E(long p) {
 *   }
 * }
 * </pre></code>
 */
@Test
public void should_not_filter_constructor_with_additional_parameters() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, Opcodes.ACC_PRIVATE, "<init>",
            "(Ljava/lang/String;IJ)V", null, null);
    m.visitVarInsn(Opcodes.ALOAD, 0);
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitVarInsn(Opcodes.ILOAD, 2);
    m.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Enum", "<init>", "(Ljava/lang/String;I)V", false);
    m.visitInsn(Opcodes.RETURN);
    context.superClassName = "java/lang/Enum";

    filter.filter(m, context, output);

    assertIgnored();
}

From source file:org.jacoco.core.internal.analysis.filter.KotlinCoroutineFilterTest.java

License:Open Source License

@Test
public void should_filter_suspending_lambdas_generated_by_Kotlin_1_3_30() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, 0, "invokeSuspend",
            "(Ljava/lang/Object;)Ljava/lang/Object;", null, null);
    context.classAnnotations.add(KotlinGeneratedFilter.KOTLIN_METADATA_DESC);

    m.visitLabel(new Label());
    final Range range1 = new Range();
    range1.fromInclusive = m.instructions.getLast();
    m.visitMethodInsn(Opcodes.INVOKESTATIC, "kotlin/coroutines/intrinsics/IntrinsicsKt",
            "getCOROUTINE_SUSPENDED", "()Ljava/lang/Object;", false);
    m.visitVarInsn(Opcodes.ASTORE, 4);/*from   w  w w .ja  v  a  2s  . c  om*/

    m.visitVarInsn(Opcodes.ALOAD, 0);
    // line of "runBlocking"
    m.visitFieldInsn(Opcodes.GETFIELD, "Target", "label", "I");
    final Label dflt = new Label();
    final Label state0 = new Label();
    final Label state1 = new Label();
    m.visitTableSwitchInsn(0, 1, dflt, state0, state1);

    m.visitLabel(state0);

    {
        m.visitVarInsn(Opcodes.ALOAD, 1);
        m.visitMethodInsn(Opcodes.INVOKESTATIC, "kotlin/ResultKt", "throwOnFailure", "(Ljava/lang/Object;)V",
                false);
        range1.toInclusive = m.instructions.getLast();
    }

    // line before "suspendingFunction"
    m.visitInsn(Opcodes.NOP);

    // line of "suspendingFunction"
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "", "suspendingFunction",
            "(Lkotlin/coroutines/Continuation;)Ljava/lang/Object;", false);

    m.visitInsn(Opcodes.DUP);
    final Range range2 = new Range();
    range2.fromInclusive = m.instructions.getLast();
    m.visitVarInsn(Opcodes.ALOAD, 4);
    final Label continuationLabelAfterLoadedResult = new Label();
    m.visitJumpInsn(Opcodes.IF_ACMPNE, continuationLabelAfterLoadedResult);
    // line of "runBlocking"
    m.visitVarInsn(Opcodes.ALOAD, 4);
    m.visitInsn(Opcodes.ARETURN);

    m.visitLabel(state1);

    m.visitVarInsn(Opcodes.ALOAD, 0);
    m.visitFieldInsn(Opcodes.GETFIELD, "Target", "I$0", "I");
    m.visitVarInsn(Opcodes.ISTORE, 3);

    {
        m.visitVarInsn(Opcodes.ALOAD, 1);
        m.visitMethodInsn(Opcodes.INVOKESTATIC, "kotlin/ResultKt", "throwOnFailure", "(Ljava/lang/Object;)V",
                false);
    }
    m.visitVarInsn(Opcodes.ALOAD, 1);
    range2.toInclusive = m.instructions.getLast();
    m.visitLabel(continuationLabelAfterLoadedResult);

    // line after "suspendingFunction"
    m.visitInsn(Opcodes.NOP);
    m.visitInsn(Opcodes.ARETURN);

    m.visitLabel(dflt);
    final Range range0 = new Range();
    range0.fromInclusive = m.instructions.getLast();
    m.visitTypeInsn(Opcodes.NEW, "java/lang/IllegalStateException");
    m.visitInsn(Opcodes.DUP);
    m.visitLdcInsn("call to 'resume' before 'invoke' with coroutine");
    m.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/IllegalStateException", "<init>",
            "(Ljava/lang/String;)V", false);
    m.visitInsn(Opcodes.ATHROW);
    range0.toInclusive = m.instructions.getLast();

    filter.filter(m, context, output);

    assertIgnored(range0, range1, range2);
}

From source file:org.jacoco.core.internal.analysis.filter.KotlinCoroutineFilterTest.java

License:Open Source License

/**
 * <pre>/*from   w  w w  .  j  av  a 2 s .co m*/
 *     runBlocking {
 *         val x = 42
 *         nop(x)
 *         suspendingFunction()
 *         nop(x)
 *     }
 * </pre>
 */
@Test
public void should_filter_suspending_lambdas() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, 0, "invokeSuspend",
            "(Ljava/lang/Object;)Ljava/lang/Object;", null, null);
    context.classAnnotations.add(KotlinGeneratedFilter.KOTLIN_METADATA_DESC);

    m.visitLabel(new Label());
    final Range range1 = new Range();
    range1.fromInclusive = m.instructions.getLast();
    m.visitMethodInsn(Opcodes.INVOKESTATIC, "kotlin/coroutines/intrinsics/IntrinsicsKt",
            "getCOROUTINE_SUSPENDED", "()Ljava/lang/Object;", false);
    m.visitVarInsn(Opcodes.ASTORE, 4);

    m.visitVarInsn(Opcodes.ALOAD, 0);
    // line of "runBlocking"
    m.visitFieldInsn(Opcodes.GETFIELD, "Target", "label", "I");
    final Label dflt = new Label();
    final Label state0 = new Label();
    final Label state1 = new Label();
    m.visitTableSwitchInsn(0, 1, dflt, state0, state1);

    m.visitLabel(state0);

    {
        m.visitVarInsn(Opcodes.ALOAD, 1);
        m.visitInsn(Opcodes.DUP);
        m.visitTypeInsn(Opcodes.INSTANCEOF, "kotlin/Result$Failure");
        Label label = new Label();
        m.visitJumpInsn(Opcodes.IFEQ, label);
        m.visitTypeInsn(Opcodes.CHECKCAST, "kotlin/Result$Failure");
        m.visitFieldInsn(Opcodes.GETFIELD, "kotlin/Result$Failure", "exception", "Ljava/lang/Throwable");
        m.visitInsn(Opcodes.ATHROW);
        m.visitInsn(Opcodes.POP);
        range1.toInclusive = m.instructions.getLast();
        m.visitLabel(label);
    }

    // line before "suspendingFunction"
    m.visitInsn(Opcodes.NOP);

    // line of "suspendingFunction"
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "", "suspendingFunction",
            "(Lkotlin/coroutines/Continuation;)Ljava/lang/Object;", false);

    m.visitInsn(Opcodes.DUP);
    final Range range2 = new Range();
    range2.fromInclusive = m.instructions.getLast();
    m.visitVarInsn(Opcodes.ALOAD, 4);
    final Label continuationLabelAfterLoadedResult = new Label();
    m.visitJumpInsn(Opcodes.IF_ACMPNE, continuationLabelAfterLoadedResult);
    // line of "runBlocking"
    m.visitVarInsn(Opcodes.ALOAD, 4);
    m.visitInsn(Opcodes.ARETURN);

    m.visitLabel(state1);

    m.visitVarInsn(Opcodes.ALOAD, 0);
    m.visitFieldInsn(Opcodes.GETFIELD, "Target", "I$0", "I");
    m.visitVarInsn(Opcodes.ISTORE, 3);

    {
        m.visitVarInsn(Opcodes.ALOAD, 1);
        m.visitInsn(Opcodes.DUP);
        m.visitTypeInsn(Opcodes.INSTANCEOF, "kotlin/Result$Failure");
        final Label label = new Label();
        m.visitJumpInsn(Opcodes.IFEQ, label);
        m.visitTypeInsn(Opcodes.CHECKCAST, "kotlin/Result$Failure");
        m.visitFieldInsn(Opcodes.GETFIELD, "kotlin/Result$Failure", "exception", "Ljava/lang/Throwable");
        m.visitInsn(Opcodes.ATHROW);
        m.visitInsn(Opcodes.POP);
        m.visitLabel(label);
    }
    m.visitVarInsn(Opcodes.ALOAD, 1);
    range2.toInclusive = m.instructions.getLast();
    m.visitLabel(continuationLabelAfterLoadedResult);

    // line after "suspendingFunction"
    m.visitInsn(Opcodes.NOP);
    m.visitInsn(Opcodes.ARETURN);

    m.visitLabel(dflt);
    final Range range0 = new Range();
    range0.fromInclusive = m.instructions.getLast();
    m.visitTypeInsn(Opcodes.NEW, "java/lang/IllegalStateException");
    m.visitInsn(Opcodes.DUP);
    m.visitLdcInsn("call to 'resume' before 'invoke' with coroutine");
    m.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/IllegalStateException", "<init>",
            "(Ljava/lang/String;)V", false);
    m.visitInsn(Opcodes.ATHROW);
    range0.toInclusive = m.instructions.getLast();

    filter.filter(m, context, output);

    assertIgnored(range0, range1, range2);
}

From source file:org.jacoco.core.internal.analysis.filter.KotlinCoroutineFilterTest.java

License:Open Source License

/**
 * <pre>/*from   www .  j av a  2s. c  o m*/
 *     suspend fun example() {
 *         suspendingFunction()
 *         nop()
 *     }
 * </pre>
 */
@Test
public void should_filter_suspending_functions() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, Opcodes.ACC_STATIC, "example",
            "(Lkotlin/coroutines/Continuation;)Ljava/lang/Object;", null, null);
    context.classAnnotations.add(KotlinGeneratedFilter.KOTLIN_METADATA_DESC);

    final int continuationArgumentIndex = 0;
    final int continuationIndex = 2;

    m.visitVarInsn(Opcodes.ALOAD, continuationArgumentIndex);
    final Range range1 = new Range();
    range1.fromInclusive = m.instructions.getLast();
    m.visitTypeInsn(Opcodes.INSTANCEOF, "ExampleKt$example$1");
    final Label createStateInstance = new Label();
    m.visitJumpInsn(Opcodes.IFEQ, createStateInstance);

    m.visitVarInsn(Opcodes.ALOAD, continuationArgumentIndex);
    m.visitTypeInsn(Opcodes.CHECKCAST, "ExampleKt$example$1");
    m.visitVarInsn(Opcodes.ASTORE, continuationIndex);

    m.visitVarInsn(Opcodes.ALOAD, continuationIndex);
    m.visitFieldInsn(Opcodes.GETFIELD, "ExampleKt$example$1", "label", "I");

    m.visitLdcInsn(Integer.valueOf(Integer.MIN_VALUE));
    m.visitInsn(Opcodes.IAND);
    m.visitJumpInsn(Opcodes.IFEQ, createStateInstance);

    m.visitVarInsn(Opcodes.ALOAD, continuationIndex);
    m.visitInsn(Opcodes.DUP);
    m.visitFieldInsn(Opcodes.GETFIELD, "ExampleKt$example$1", "label", "I");

    m.visitLdcInsn(Integer.valueOf(Integer.MIN_VALUE));
    m.visitInsn(Opcodes.ISUB);
    m.visitFieldInsn(Opcodes.PUTFIELD, "ExampleKt$example$1", "label", "I");

    final Label afterCoroutineStateCreated = new Label();
    m.visitJumpInsn(Opcodes.GOTO, afterCoroutineStateCreated);

    m.visitLabel(createStateInstance);

    m.visitTypeInsn(Opcodes.NEW, "ExampleKt$example$1");
    m.visitInsn(Opcodes.DUP);
    m.visitVarInsn(Opcodes.ALOAD, continuationArgumentIndex);
    m.visitMethodInsn(Opcodes.INVOKESPECIAL, "ExampleKt$example$1", "<init>",
            "(Lkotlin/coroutines/Continuation;)V", false);

    m.visitVarInsn(Opcodes.ASTORE, continuationIndex);

    m.visitLabel(afterCoroutineStateCreated);

    m.visitVarInsn(Opcodes.ALOAD, continuationIndex);
    m.visitFieldInsn(Opcodes.GETFIELD, "ExampleKt$example$1", "result", "Ljava/lang/Object;");
    m.visitVarInsn(Opcodes.ASTORE, 1);

    m.visitMethodInsn(Opcodes.INVOKESTATIC, "kotlin/coroutines/intrinsics/IntrinsicsKt",
            "getCOROUTINE_SUSPENDED", "()Ljava/lang/Object;", false);

    // line of "fun"
    m.visitVarInsn(Opcodes.ASTORE, 3);

    m.visitVarInsn(Opcodes.ALOAD, continuationIndex);
    m.visitFieldInsn(Opcodes.GETFIELD, "ExampleKt$example$1", "label", "I");
    final Label dflt = new Label();
    final Label state0 = new Label();
    final Label state1 = new Label();
    m.visitTableSwitchInsn(0, 1, dflt, state0, state1);

    m.visitLabel(state0);

    {
        m.visitVarInsn(Opcodes.ALOAD, 1);
        m.visitInsn(Opcodes.DUP);
        m.visitTypeInsn(Opcodes.INSTANCEOF, "kotlin/Result$Failure");
        Label label = new Label();
        m.visitJumpInsn(Opcodes.IFEQ, label);
        m.visitTypeInsn(Opcodes.CHECKCAST, "kotlin/Result$Failure");
        m.visitFieldInsn(Opcodes.GETFIELD, "kotlin/Result$Failure", "exception", "Ljava/lang/Throwable");
        m.visitInsn(Opcodes.ATHROW);
        m.visitInsn(Opcodes.POP);
        range1.toInclusive = m.instructions.getLast();
        m.visitLabel(label);
    }

    // line of "suspendingFunction"
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "", "suspendingFunction",
            "(Lkotlin/coroutines/Continuation;)Ljava/lang/Object;", false);

    m.visitInsn(Opcodes.DUP);
    final Range range2 = new Range();
    range2.fromInclusive = m.instructions.getLast();
    m.visitVarInsn(Opcodes.ALOAD, 3);
    final Label continuationLabelAfterLoadedResult = new Label();
    m.visitJumpInsn(Opcodes.IF_ACMPNE, continuationLabelAfterLoadedResult);
    // line of "fun"
    m.visitVarInsn(Opcodes.ALOAD, 3);
    m.visitInsn(Opcodes.ARETURN);

    m.visitLabel(state1);

    {
        m.visitVarInsn(Opcodes.ALOAD, 1);
        m.visitInsn(Opcodes.DUP);
        m.visitTypeInsn(Opcodes.INSTANCEOF, "kotlin/Result$Failure");
        final Label label = new Label();
        m.visitJumpInsn(Opcodes.IFEQ, label);
        m.visitTypeInsn(Opcodes.CHECKCAST, "kotlin/Result$Failure");
        m.visitFieldInsn(Opcodes.GETFIELD, "kotlin/Result$Failure", "exception", "Ljava/lang/Throwable");
        m.visitInsn(Opcodes.ATHROW);
        m.visitInsn(Opcodes.POP);
        m.visitLabel(label);
    }
    m.visitVarInsn(Opcodes.ALOAD, 1);
    range2.toInclusive = m.instructions.getLast();
    m.visitLabel(continuationLabelAfterLoadedResult);

    // line after "suspendingFunction"
    m.visitInsn(Opcodes.NOP);
    m.visitInsn(Opcodes.ARETURN);

    m.visitLabel(dflt);
    final Range range0 = new Range();
    range0.fromInclusive = m.instructions.getLast();
    m.visitTypeInsn(Opcodes.NEW, "java/lang/IllegalStateException");
    m.visitInsn(Opcodes.DUP);
    m.visitLdcInsn("call to 'resume' before 'invoke' with coroutine");
    m.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/IllegalStateException", "<init>",
            "(Ljava/lang/String;)V", false);
    m.visitInsn(Opcodes.ATHROW);
    range0.toInclusive = m.instructions.getLast();

    filter.filter(m, context, output);

    assertIgnored(range0, range1, range2);
}

From source file:org.jacoco.core.internal.analysis.filter.KotlinDefaultArgumentsFilterTest.java

License:Open Source License

private static MethodNode createMethod(final int access, final String name, final String descriptor) {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, access, name, descriptor, null, null);

    m.visitVarInsn(Opcodes.ILOAD, 2);/*from  ww w  . j a  va 2  s. co  m*/
    m.visitInsn(Opcodes.ICONST_1);
    m.visitInsn(Opcodes.IAND);
    final Label label = new Label();
    m.visitJumpInsn(Opcodes.IFEQ, label);
    // default argument
    m.visitLdcInsn(Integer.valueOf(42));
    m.visitVarInsn(Opcodes.ISTORE, 1);
    m.visitLabel(label);

    m.visitVarInsn(Opcodes.ALOAD, 0);
    m.visitVarInsn(Opcodes.ILOAD, 1);
    m.visitMethodInsn(Opcodes.INVOKESPECIAL, "Target", "origin", "(I)V", false);
    m.visitInsn(Opcodes.RETURN);

    return m;
}

From source file:org.jacoco.core.internal.analysis.filter.KotlinDefaultArgumentsFilterTest.java

License:Open Source License

/**
 * <pre>/*from   w w w  .j av a2 s  .co m*/
 * open class Open {
 *     open fun foo(a: Int = 42) {
 *     }
 * }
 * </pre>
 */
@Test
public void should_filter_open_functions() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, Opcodes.ACC_SYNTHETIC, "foo$default",
            "(LOpen;IILjava/lang/Object;)V", null, null);
    context.classAnnotations.add(KotlinGeneratedFilter.KOTLIN_METADATA_DESC);
    {
        m.visitVarInsn(Opcodes.ALOAD, 3);
        final Label label = new Label();
        m.visitJumpInsn(Opcodes.IFNULL, label);
        m.visitTypeInsn(Opcodes.NEW, "java/lang/UnsupportedOperationException");
        m.visitInsn(Opcodes.DUP);
        m.visitLdcInsn("Super calls with default arguments not supported in this target, function: foo");
        m.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/UnsupportedOperationException", "<init>",
                "(Ljava/lang/String;)V", false);
        m.visitInsn(Opcodes.ATHROW);
        m.visitLabel(label);
    }
    {
        m.visitVarInsn(Opcodes.ILOAD, 2);
        m.visitInsn(Opcodes.ICONST_1);
        m.visitInsn(Opcodes.IAND);
        final Label label = new Label();
        m.visitJumpInsn(Opcodes.IFEQ, label);
        // default argument
        m.visitLdcInsn(Integer.valueOf(42));
        m.visitVarInsn(Opcodes.ISTORE, 1);
        m.visitLabel(label);

        m.visitVarInsn(Opcodes.ALOAD, 0);
        m.visitVarInsn(Opcodes.ILOAD, 1);
        m.visitMethodInsn(Opcodes.INVOKESPECIAL, "Open", "foo", "(I)V", false);
        m.visitInsn(Opcodes.RETURN);
    }

    filter.filter(m, context, output);

    assertIgnored(new Range(m.instructions.getFirst(), m.instructions.get(6)),
            new Range(m.instructions.get(11), m.instructions.get(11)));
}