Example usage for org.objectweb.asm Opcodes F

Introduction

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

Prototype

int F_NEW

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

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An expanded frame.

Usage

From source file:org.jacoco.core.internal.instr.ProbeVariableInserterTest.java

License:Open Source License

@Test
public void testInsertProbeFrameNoFrameForLabel() {
    final FrameRecorder rec = new FrameRecorder();
    ProbeVariableInserter i = new ProbeVariableInserter(0, "(J)V", rec);

    // The first (implicit) frame:
    i.visitFrame(Opcodes.F_NEW, 2, new Object[] { "LFoo;", Opcodes.LONG }, 0, new Object[0]);

    // There must be a label which is a multi-jump target:
    Label label = new Label();
    LabelInfo.setTarget(label);//from   w  ww. j  a  va2s  . c  om
    LabelInfo.setTarget(label);
    i.visitLabel(label);

    // Insert a frame for this label:
    i.visitFrame(Opcodes.F_NEW, 3, new Object[] { "LFoo;", Opcodes.LONG, "Ljava/lang/String;" }, 0,
            new Object[0]);

    // Try to insert a frame for a different label:
    rec.frame = null;
    i.insertProbeFrame(new Label());
    assertNull(rec.frame);
}

From source file:org.jacoco.core.internal.instr.ProbeVariableInserterTest.java

License:Open Source License

@Test
public void testInsertProbeFrameNoMultiTarget() {
    final FrameRecorder rec = new FrameRecorder();
    ProbeVariableInserter i = new ProbeVariableInserter(0, "(J)V", rec);

    // The first (implicit) frame:
    i.visitFrame(Opcodes.F_NEW, 2, new Object[] { "LFoo;", Opcodes.LONG }, 0, new Object[0]);

    // The frame for this label isn't required:
    Label label = new Label();
    i.visitLabel(label);/*from w w w. ja  v  a  2s  . co m*/

    // Insert a frame for this label:
    i.visitFrame(Opcodes.F_NEW, 3, new Object[] { "LFoo;", Opcodes.LONG, "Ljava/lang/String;" }, 0,
            new Object[0]);

    // Inserting a frame for the label shouldn't work:
    rec.frame = null;
    i.insertProbeFrame(label);
    assertNull(rec.frame);
}

From source file:org.jboss.byteman.agent.adapter.RuleGeneratorAdapter.java

License:Open Source License

public void visitFrame(final int type, final int nLocal, final Object[] local, final int nStack,
        final Object[] stack) {
    if (type != Opcodes.F_NEW) { // uncompressed frame
        throw new IllegalStateException("ClassReader.accept() should be called with EXPAND_FRAMES flag");
    }//from  w  w  w.  ja va  2  s  .  c o m

    // dumpFrame(nLocal, local, nStack, stack);

    // adjust the local types array

    int toRemove = localTypes.size();

    for (int i = toRemove; i > 0; i--) {
        localTypes.remove(i - 1);
    }

    int nextLocal = 0;

    for (int i = 0; i < nLocal; i++) {
        Object t = local[i];
        if (t == Opcodes.TOP) {
            localTypes.add(null);
        } else if (t == null) {
            localTypes.add(null);
        } else if (t == Opcodes.INTEGER) {
            localTypes.add(Type.INT_TYPE);
        } else if (t == Opcodes.FLOAT) {
            localTypes.add(Type.FLOAT_TYPE);
        } else if (t == Opcodes.DOUBLE) {
            localTypes.add(Type.DOUBLE_TYPE);
            nextLocal++;
            localTypes.add(null);
        } else if (t == Opcodes.LONG) {
            localTypes.add(Type.LONG_TYPE);
            nextLocal++;
            localTypes.add(null);
        } else if (t == Opcodes.NULL) {
            localTypes.add(null);
        } else if (t == Opcodes.UNINITIALIZED_THIS) {
            localTypes.add(null);
        } else if (t instanceof String) {
            localTypes.add(Type.getObjectType((String) t));
        } else {
            localTypes.add(null);
        }
        nextLocal++;
    }

    this.nextLocal = nextLocal;

    mv.visitFrame(type, nLocal, local, nStack, stack);
}

From source file:org.summer.aop.ltw.AuxiliaryWeaver.java

License:Open Source License

protected void visitFrame() {
    mv.visitFrame(Opcodes.F_NEW, frame.getLocalSize(), frame.getLocals(), frame.getStackSize(),
            frame.getStack());
}

Example usage for org.objectweb.asm Opcodes F_NEW

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