Examples with MethodVisitor org.objectweb.asm.MethodVisitor used on opensource projects

Example 96 with MethodVisitor

use of org.objectweb.asm.MethodVisitor in project robovm by robovm.

the class AnnotationImplPlugin method generateAnnotationTypeMethod.

private void generateAnnotationTypeMethod(Clazz clazz, ClassWriter cw) {
    // Class<? extends Annotation> annotationType();
    MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "annotationType", "()Ljava/lang/Class;", null, null);
    mv.visitCode();
    mv.visitLdcInsn(Type.getObjectType(clazz.getInternalName()));
    mv.visitInsn(ARETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

Example 97 with MethodVisitor

use of org.objectweb.asm.MethodVisitor in project byte-buddy by raphw.

the class TypeConstantAdjustmentTest method testInstrumentationLegacyClassFileArrayType.

@Test
public void testInstrumentationLegacyClassFileArrayType() throws Exception {
    ClassVisitor classVisitor = TypeConstantAdjustment.INSTANCE.wrap(mock(TypeDescription.class), this.classVisitor, mock(Implementation.Context.class), mock(TypePool.class), new FieldList.Empty<FieldDescription.InDefinedShape>(), new MethodList.Empty<MethodDescription>(), IGNORED, IGNORED);
    classVisitor.visit(ClassFileVersion.JAVA_V4.getMinorMajorVersion(), FOOBAR, FOO, BAR, QUX, new String[] { BAZ });
    MethodVisitor methodVisitor = classVisitor.visitMethod(FOOBAR, FOO, BAR, QUX, new String[] { BAZ });
    assertThat(methodVisitor, not(this.methodVisitor));
    methodVisitor.visitLdcInsn(Type.getType(Object[].class));
    verify(this.classVisitor).visit(ClassFileVersion.JAVA_V4.getMinorMajorVersion(), FOOBAR, FOO, BAR, QUX, new String[] { BAZ });
    verify(this.classVisitor).visitMethod(FOOBAR, FOO, BAR, QUX, new String[] { BAZ });
    verifyNoMoreInteractions(this.classVisitor);
    verify(this.methodVisitor).visitLdcInsn(Type.getType(Object[].class).getInternalName().replace('/', '.'));
    verify(this.methodVisitor).visitMethodInsn(Opcodes.INVOKESTATIC, Type.getType(Class.class).getInternalName(), "forName", Type.getType(Class.class.getDeclaredMethod("forName", String.class)).getDescriptor(), false);
    verifyNoMoreInteractions(this.methodVisitor);
}

Example 98 with MethodVisitor

use of org.objectweb.asm.MethodVisitor in project byte-buddy by raphw.

the class RebaseImplementationTargetTest method testNonRebasedMethodIsInvokable.

@Test
public void testNonRebasedMethodIsInvokable() throws Exception {
    when(invokableMethod.getDeclaringType()).thenReturn(instrumentedType);
    when(invokableMethod.isSpecializableFor(instrumentedType)).thenReturn(true);
    when(resolution.isRebased()).thenReturn(false);
    when(resolution.getResolvedMethod()).thenReturn(invokableMethod);
    Implementation.SpecialMethodInvocation specialMethodInvocation = makeImplementationTarget().invokeSuper(rebasedSignatureToken);
    assertThat(specialMethodInvocation.isValid(), is(true));
    assertThat(specialMethodInvocation.getMethodDescription(), is((MethodDescription) invokableMethod));
    assertThat(specialMethodInvocation.getTypeDescription(), is(instrumentedType));
    MethodVisitor methodVisitor = mock(MethodVisitor.class);
    Implementation.Context implementationContext = mock(Implementation.Context.class);
    StackManipulation.Size size = specialMethodInvocation.apply(methodVisitor, implementationContext);
    verify(methodVisitor).visitMethodInsn(Opcodes.INVOKESPECIAL, BAZ, FOO, QUX, false);
    verifyNoMoreInteractions(methodVisitor);
    verifyZeroInteractions(implementationContext);
    assertThat(size.getSizeImpact(), is(0));
    assertThat(size.getMaximalSize(), is(0));
}

Example 99 with MethodVisitor

use of org.objectweb.asm.MethodVisitor in project byte-buddy by raphw.

the class RebaseImplementationTargetTest method testSuperTypeMethodIsInvokable.

@Test
public void testSuperTypeMethodIsInvokable() throws Exception {
    when(invokableMethod.isSpecializableFor(rawSuperClass)).thenReturn(true);
    Implementation.SpecialMethodInvocation specialMethodInvocation = makeImplementationTarget().invokeSuper(invokableToken);
    assertThat(specialMethodInvocation.isValid(), is(true));
    assertThat(specialMethodInvocation.getMethodDescription(), is((MethodDescription) invokableMethod));
    assertThat(specialMethodInvocation.getTypeDescription(), is(rawSuperClass));
    MethodVisitor methodVisitor = mock(MethodVisitor.class);
    Implementation.Context implementationContext = mock(Implementation.Context.class);
    StackManipulation.Size size = specialMethodInvocation.apply(methodVisitor, implementationContext);
    verify(methodVisitor).visitMethodInsn(Opcodes.INVOKESPECIAL, BAR, FOO, QUX, false);
    verifyNoMoreInteractions(methodVisitor);
    verifyZeroInteractions(implementationContext);
    assertThat(size.getSizeImpact(), is(0));
    assertThat(size.getMaximalSize(), is(0));
}

Example 100 with MethodVisitor

use of org.objectweb.asm.MethodVisitor in project felix by apache.

the class ProxyGenerator method generateConstructor.

/**
 * Generates the constructors. The constructor receives a temporal dependency
 * and set the {@link ProxyGenerator#DEPENDENCY} field.
 * @param cw the class writer
 * @param className the generated class name.
 */
private static void generateConstructor(ClassWriter cw, String className) {
    MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", '(' + DEPENDENCY_DESC + ")V", null, null);
    mv.visitCode();
    // Load this
    mv.visitVarInsn(ALOAD, 0);
    // Dup
    mv.visitInsn(DUP);
    // Call  super
    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
    // Load the argument
    mv.visitVarInsn(ALOAD, 1);
    // Assign the dependency field
    mv.visitFieldInsn(PUTFIELD, className, DEPENDENCY, DEPENDENCY_DESC);
    // Return void
    mv.visitInsn(RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}