Example usage for org.objectweb.asm Opcodes NOP

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

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Introduction

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

Prototype

int NOP

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

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Usage

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

License:Open Source License

@Test
public void nextIsInvoke() {
    m.visitInsn(Opcodes.NOP);
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "owner", "name", "()V", false);

    // should set cursor to null when opcode mismatch
    matcher.cursor = m.instructions.getFirst();
    matcher.nextIsInvoke(Opcodes.INVOKESTATIC, "owner", "name", "()V");
    assertNull(matcher.cursor);/*from  www.  ja  v  a2 s .  c  om*/

    // should set cursor to null when owner mismatch
    matcher.cursor = m.instructions.getFirst();
    matcher.nextIsInvoke(Opcodes.INVOKEVIRTUAL, "another_owner", "name", "()V");
    assertNull(matcher.cursor);

    // should set cursor to null when name mismatch
    matcher.cursor = m.instructions.getFirst();
    matcher.nextIsInvoke(Opcodes.INVOKEVIRTUAL, "owner", "another_name", "()V");
    assertNull(matcher.cursor);

    // should set cursor to null when descriptor mismatch
    matcher.cursor = m.instructions.getFirst();
    matcher.nextIsInvoke(Opcodes.INVOKEVIRTUAL, "owner", "name", "(Lanother_descriptor;)V");
    assertNull(matcher.cursor);

    // should set cursor to next instruction when match
    matcher.cursor = m.instructions.getFirst();
    matcher.nextIsInvoke(Opcodes.INVOKEVIRTUAL, "owner", "name", "()V");
    assertSame(m.instructions.getLast(), matcher.cursor);

    // should not do anything when cursor is null
    matcher.cursor = null;
    matcher.nextIsInvoke(Opcodes.INVOKEVIRTUAL, "owner", "name", "()V");
}

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

License:Open Source License

@Test
public void nextIsType() {
    m.visitInsn(Opcodes.NOP);
    m.visitTypeInsn(Opcodes.NEW, "descriptor");

    // should set cursor to null when opcode mismatch
    matcher.cursor = m.instructions.getFirst();
    matcher.nextIsType(Opcodes.CHECKCAST, "descriptor");
    assertNull(matcher.cursor);//from www .  j  av  a  2s .  co m

    // should set cursor to null when descriptor mismatch
    matcher.cursor = m.instructions.getFirst();
    matcher.nextIsType(Opcodes.NEW, "another_descriptor");
    assertNull(matcher.cursor);

    // should set cursor to next instruction when match
    matcher.cursor = m.instructions.getFirst();
    matcher.nextIsType(Opcodes.NEW, "descriptor");
    assertSame(m.instructions.getLast(), matcher.cursor);

    // should not do anything when cursor is null
    matcher.cursor = null;
    matcher.nextIsType(Opcodes.NEW, "descriptor");
}

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

License:Open Source License

@Test
public void firstIsALoad0() {
    // should set cursor to null when opcode mismatch
    m.visitInsn(Opcodes.NOP);
    matcher.firstIsALoad0(m);//w w  w .  ja v  a  2 s . com
    assertNull(matcher.cursor);

    // should set cursor to null when var mismatch
    m.instructions.clear();
    m.visitVarInsn(Opcodes.ALOAD, 1);
    matcher.firstIsALoad0(m);
    assertNull(matcher.cursor);

    // should set cursor to first instruction when match
    m.instructions.clear();
    m.visitVarInsn(Opcodes.ALOAD, 0);
    matcher.firstIsALoad0(m);
    assertSame(m.instructions.getLast(), matcher.cursor);
}

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

License:Open Source License

@Test
public void should_filter_classes_annotated_with_runtime_visible_org_apache_avro_specific_AvroGenerated() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, 0, "readExternal", "()V", null, null);

    m.visitInsn(Opcodes.NOP);

    context.classAnnotations.add("Lorg/apache/avro/specific/AvroGenerated;");

    filter.filter(m, context, output);//from w  w  w.j a va 2s .  c o  m

    assertMethodIgnored(m);
}

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

License:Open Source License

/**
 * <code><pre>//from   w ww . j  a v a 2 s  .  c om
 * 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>/* www  .  ja  v a 2 s .c  o m*/
 * enum E {
 *   ;
 *   private void method(String p1, int p2) {
 *   }
 * }
 * </pre></code>
 */
@Test
public void should_not_filter_non_constructor() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, Opcodes.ACC_PRIVATE, "method",
            "(Ljava/lang/String;I)V", null, null);
    m.visitInsn(Opcodes.NOP);
    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

@Test
public void should_not_filter_non_Enum() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, Opcodes.ACC_PRIVATE, "<init>",
            "(Ljava/lang/String;I)V", null, null);
    m.visitInsn(Opcodes.NOP);

    filter.filter(m, context, output);/*w  ww  .ja  v a2 s  .c o m*/

    assertIgnored();
}

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

License:Open Source License

@Test
public void testValues() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, 0, "values", "()[LFoo;", null, null);
    m.visitInsn(Opcodes.NOP);
    context.superClassName = "java/lang/Enum";

    filter.filter(m, context, output);//from w w w .  j a va  2s.  com

    assertMethodIgnored(m);
}

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

License:Open Source License

@Test
public void testNonValues() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, 0, "values", "()V", null, null);
    m.visitInsn(Opcodes.NOP);

    filter.filter(m, context, output);/*from w  ww.j av a  2 s  .  com*/

    assertIgnored();
}

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

License:Open Source License

@Test
public void testValueOf() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, 0, "valueOf", "(Ljava/lang/String;)LFoo;",
            null, null);//  w  ww .j a va 2 s .  co  m
    m.visitInsn(Opcodes.NOP);
    context.superClassName = "java/lang/Enum";

    filter.filter(m, context, output);

    assertMethodIgnored(m);
}