Example usage for org.objectweb.asm Opcodes NOP

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.

Click Source Link

Usage

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

License:Open Source License

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

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

    assertIgnored();
}

---

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

License:Open Source License

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

    filter.filter(m, context, output);/*from   w  w  w  . j  a  v  a  2  s  .  co  m*/

    assertIgnored();
}

---

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

License:Open Source License

/**
 * <pre>/*  www.  j ava 2  s . c o m*/
 *   try {
 *     ...
 *     if (...) {
 *       ...
 *       return;
 *     } else {
 *       ...
 *       return;
 *     }
 *   } finally {
 *     ...
 *   }
 * </pre>
 */
@Test
public void should_analyze_control_flow() {
    final Label start1 = new Label();
    final Label end1 = new Label();
    final Label start2 = new Label();
    final Label end2 = new Label();
    final Label finallyStart = new Label();

    m.visitTryCatchBlock(start1, end1, finallyStart, null);
    m.visitTryCatchBlock(start2, end2, finallyStart, null);

    m.visitLabel(start1);
    // jump to another region associated with same handler:
    m.visitJumpInsn(Opcodes.IFEQ, start2);
    m.visitInsn(Opcodes.NOP);
    m.visitLabel(end1);

    m.visitInsn(Opcodes.NOP); // finally block
    shouldMergeLast();
    m.visitInsn(Opcodes.RETURN);

    m.visitLabel(start2);
    m.visitInsn(Opcodes.NOP);
    m.visitLabel(end2);
    m.visitInsn(Opcodes.NOP); // finally block
    shouldMergeLast();
    m.visitInsn(Opcodes.RETURN);

    m.visitLabel(finallyStart);
    m.visitVarInsn(Opcodes.ASTORE, 1);
    shouldIgnoreLast();
    m.visitInsn(Opcodes.NOP); // finally block
    shouldMergeLast();
    m.visitVarInsn(Opcodes.ALOAD, 1);
    shouldIgnoreLast();
    m.visitInsn(Opcodes.ATHROW);
    shouldIgnoreLast();

    execute();
}

---

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

License:Open Source License

@Test
public void javac_try_catch_finally() {
    final Label tryStart = new Label();
    final Label tryEnd = new Label();
    final Label catchStart = new Label();
    final Label catchEnd = new Label();
    final Label finallyStart = new Label();
    final Label finallyEnd = new Label();

    m.visitTryCatchBlock(tryStart, tryEnd, catchStart, "java/lang/Exception");
    m.visitTryCatchBlock(catchStart, catchEnd, finallyStart, null);
    m.visitTryCatchBlock(tryStart, tryEnd, finallyStart, null);

    m.visitLabel(tryStart);/* ww  w . j  a  v  a  2 s .com*/
    m.visitInsn(Opcodes.NOP); // try body
    m.visitLabel(tryEnd);
    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitJumpInsn(Opcodes.GOTO, finallyEnd);
    shouldIgnoreLast();

    m.visitLabel(catchStart);
    m.visitInsn(Opcodes.NOP); // catch body
    m.visitLabel(catchEnd);
    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitInsn(Opcodes.ATHROW);

    m.visitLabel(finallyStart);
    m.visitVarInsn(Opcodes.ASTORE, 1);
    shouldIgnoreLast();
    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitVarInsn(Opcodes.ALOAD, 1);
    shouldIgnoreLast();
    m.visitInsn(Opcodes.ATHROW);
    shouldIgnoreLast();
    m.visitLabel(finallyEnd);

    m.visitInsn(Opcodes.NOP);

    execute();
}

---

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

License:Open Source License

@Test
public void ecj_try_catch_finally() {
    final Label tryStart = new Label();
    final Label tryEnd = new Label();
    final Label catchStart = new Label();
    final Label catchEnd = new Label();
    final Label finallyStart = new Label();
    final Label finallyEnd = new Label();
    final Label after = new Label();

    m.visitTryCatchBlock(tryStart, tryEnd, catchStart, "java/lang/Exception");
    m.visitTryCatchBlock(tryStart, catchEnd, finallyStart, null);

    m.visitLabel(tryStart);//from ww  w.java  2 s.  com
    m.visitInsn(Opcodes.NOP); // try body
    m.visitLabel(tryEnd);
    m.visitJumpInsn(Opcodes.GOTO, finallyEnd);

    m.visitLabel(catchStart);
    m.visitInsn(Opcodes.POP);
    m.visitInsn(Opcodes.NOP); // catch body
    m.visitLabel(catchEnd);
    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitJumpInsn(Opcodes.GOTO, after);
    shouldIgnoreLast();

    m.visitLabel(finallyStart);
    m.visitVarInsn(Opcodes.ASTORE, 1);
    shouldIgnoreLast();
    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitVarInsn(Opcodes.ALOAD, 1);
    shouldIgnoreLast();
    m.visitInsn(Opcodes.ATHROW);
    shouldIgnoreLast();
    m.visitLabel(finallyEnd);

    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitLabel(after);
    m.visitInsn(Opcodes.NOP);

    execute();
}

---

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

License:Open Source License

/**
 * javac 1.5 - 1.7/* www.  ja  v  a 2 s .c  om*/
 */
@Test
public void javac_empty_catch() {
    final Label tryStart = new Label();
    final Label tryEnd = new Label();
    final Label catchStart = new Label();
    final Label catchEnd = new Label();
    final Label finallyStart = new Label();
    final Label finallyEnd = new Label();

    m.visitTryCatchBlock(tryStart, tryEnd, catchStart, "java/lang/Exception");
    m.visitTryCatchBlock(tryStart, tryEnd, finallyStart, null);
    m.visitTryCatchBlock(catchStart, catchEnd, finallyStart, null);
    // actually one more useless TryCatchBlock for ASTORE in finally

    m.visitLabel(tryStart);
    m.visitInsn(Opcodes.NOP); // try body
    m.visitLabel(tryEnd);
    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitJumpInsn(Opcodes.GOTO, finallyEnd);
    shouldIgnoreLast();

    m.visitLabel(catchStart);
    m.visitVarInsn(Opcodes.ASTORE, 1);
    m.visitLabel(catchEnd);
    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitJumpInsn(Opcodes.GOTO, finallyEnd);
    shouldIgnoreLast();

    m.visitLabel(finallyStart);
    m.visitVarInsn(Opcodes.ASTORE, 1);
    shouldIgnoreLast();
    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitVarInsn(Opcodes.ALOAD, 1);
    shouldIgnoreLast();
    m.visitInsn(Opcodes.ATHROW);
    shouldIgnoreLast();
    m.visitLabel(finallyEnd);

    m.visitInsn(Opcodes.NOP);

    execute();
}

---

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

License:Open Source License

/**
 * javac >= 1.8//www . j  av  a2s .c  om
 *
 * Probably related to https://bugs.openjdk.java.net/browse/JDK-7093325
 */
@Test
public void javac_8_empty_catch() throws Exception {
    final Label tryStart = new Label();
    final Label tryEnd = new Label();
    final Label catchStart = new Label();
    final Label finallyStart = new Label();
    final Label finallyEnd = new Label();

    m.visitTryCatchBlock(tryStart, tryEnd, catchStart, "java/lang/Exception");
    m.visitTryCatchBlock(tryStart, tryEnd, finallyStart, null);

    m.visitLabel(tryStart);
    m.visitInsn(Opcodes.NOP); // try body
    m.visitLabel(tryEnd);
    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitJumpInsn(Opcodes.GOTO, finallyEnd);
    shouldIgnoreLast();
    shouldIgnoreLast();

    m.visitLabel(catchStart);
    m.visitVarInsn(Opcodes.ASTORE, 1);
    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitJumpInsn(Opcodes.GOTO, finallyEnd);
    shouldIgnoreLast();

    m.visitLabel(finallyStart);
    m.visitVarInsn(Opcodes.ASTORE, 1);
    shouldIgnoreLast();
    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitVarInsn(Opcodes.ALOAD, 1);
    shouldIgnoreLast();
    m.visitInsn(Opcodes.ATHROW);
    shouldIgnoreLast();
    m.visitLabel(finallyEnd);

    execute();
}

---

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

License:Open Source License

@Test
public void ecj_empty_catch() {
    final Label tryStart = new Label();
    final Label tryEnd = new Label();
    final Label catchStart = new Label();
    final Label catchEnd = new Label();
    final Label finallyStart = new Label();
    final Label finallyEnd = new Label();
    final Label after = new Label();

    m.visitTryCatchBlock(tryStart, tryEnd, catchStart, "java/lang/Exception");
    m.visitTryCatchBlock(tryStart, catchEnd, finallyStart, null);

    m.visitLabel(tryStart);//  w w  w .j a  v  a 2s .c om
    m.visitInsn(Opcodes.NOP); // try body
    m.visitLabel(tryEnd);
    m.visitJumpInsn(Opcodes.GOTO, finallyEnd);

    m.visitLabel(catchStart);
    m.visitInsn(Opcodes.POP);
    m.visitLabel(catchEnd);
    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitJumpInsn(Opcodes.GOTO, after);
    shouldIgnoreLast();

    m.visitLabel(finallyStart);
    m.visitVarInsn(Opcodes.ASTORE, 1);
    shouldIgnoreLast();
    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitVarInsn(Opcodes.ALOAD, 1);
    shouldIgnoreLast();
    m.visitInsn(Opcodes.ATHROW);
    shouldIgnoreLast();
    m.visitLabel(finallyEnd);

    m.visitInsn(Opcodes.NOP); // finally body
    shouldMergeLast();
    m.visitLabel(after);
    m.visitInsn(Opcodes.NOP);

    execute();
}

---

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

License:Open Source License

@Test
public void javac_always_completes_abruptly() {
    final Label tryStart = new Label();
    final Label tryEnd = new Label();
    final Label finallyStart = new Label();

    m.visitTryCatchBlock(tryStart, tryEnd, finallyStart, null);

    m.visitLabel(tryStart);/*from w w  w .j  av a2  s  .c om*/
    m.visitInsn(Opcodes.NOP); // try body
    m.visitLabel(tryEnd);
    m.visitInsn(Opcodes.RETURN); // finally body

    m.visitLabel(finallyStart);
    m.visitVarInsn(Opcodes.ASTORE, 1);
    m.visitInsn(Opcodes.RETURN); // finally body

    execute();
}

---

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

License:Open Source License

@Test
public void ecj_always_completes_abruptly() {
    final Label tryStart = new Label();
    final Label tryEnd = new Label();
    final Label finallyStart = new Label();

    m.visitTryCatchBlock(tryStart, tryEnd, tryEnd, null);

    m.visitLabel(tryStart);//w  w w .  j  av a2 s.c o  m
    m.visitInsn(Opcodes.NOP); // try body
    m.visitJumpInsn(Opcodes.GOTO, finallyStart);
    m.visitLabel(tryEnd);

    m.visitInsn(Opcodes.POP);
    m.visitLabel(finallyStart);
    m.visitInsn(Opcodes.RETURN); // finally body

    execute();
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• »