Example usage for org.objectweb.asm Opcodes ASTORE

Introduction

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

Prototype

int ASTORE

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

Click Source Link

Usage

From source file:org.jacoco.core.internal.analysis.filter.TryWithResourcesJavac11FilterTest.java

License:Open Source License

/**
 * <pre>//from w w w. j a v a  2  s.  c o  m
 *   try (r = new ...) {
 *     ...
 *   }
 * </pre>
 */
@Test
public void without_null_check() {
    final Range range1 = new Range();
    final Range range2 = new Range();

    final Label e = new Label();
    final Label t = new Label();

    final Label handler = new Label();
    m.visitTryCatchBlock(handler, handler, handler, "java/lang/Throwable");

    m.visitInsn(Opcodes.NOP);

    m.visitVarInsn(Opcodes.ALOAD, 0);
    range1.fromInclusive = m.instructions.getLast();
    m.visitMethodInsn(Opcodes.INVOKEINTERFACE, "Resource", "close", "()V", false);
    m.visitJumpInsn(Opcodes.GOTO, e);
    range1.toInclusive = m.instructions.getLast();

    m.visitLabel(handler);
    range2.fromInclusive = m.instructions.getLast();
    m.visitVarInsn(Opcodes.ASTORE, 1);
    m.visitVarInsn(Opcodes.ALOAD, 0);
    m.visitMethodInsn(Opcodes.INVOKEINTERFACE, "Resource", "close", "()V", false);
    m.visitJumpInsn(Opcodes.GOTO, t);

    m.visitVarInsn(Opcodes.ASTORE, 2);
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitVarInsn(Opcodes.ALOAD, 2);
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable", "addSuppressed", "(Ljava/lang/Throwable;)V",
            false);
    m.visitLabel(t);
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitInsn(Opcodes.ATHROW);
    range2.toInclusive = m.instructions.getLast();

    m.visitLabel(e);

    filter.filter(m, context, output);

    assertIgnored(range1, range2);
}

---

From source file:org.jacoco.core.internal.analysis.filter.TryWithResourcesJavac11FilterTest.java

License:Open Source License

/**
 * <pre>/*from w  ww  .j av a2s  . co  m*/
 *   try (r = open()) {
 *     ...
 *   }
 * </pre>
 */
@Test
public void with_null_check() {
    final Range range1 = new Range();
    final Range range2 = new Range();

    final Label e = new Label();
    final Label t = new Label();

    final Label handler = new Label();
    m.visitTryCatchBlock(handler, handler, handler, "java/lang/Throwable");

    m.visitInsn(Opcodes.NOP);

    m.visitVarInsn(Opcodes.ALOAD, 0);
    range1.fromInclusive = m.instructions.getLast();
    m.visitJumpInsn(Opcodes.IFNULL, e);
    m.visitVarInsn(Opcodes.ALOAD, 0);
    m.visitMethodInsn(Opcodes.INVOKEINTERFACE, "Resource", "close", "()V", false);
    m.visitJumpInsn(Opcodes.GOTO, e);
    range1.toInclusive = m.instructions.getLast();

    m.visitLabel(handler);
    range2.fromInclusive = m.instructions.getLast();
    m.visitVarInsn(Opcodes.ASTORE, 1);
    m.visitVarInsn(Opcodes.ALOAD, 0);
    m.visitJumpInsn(Opcodes.IFNULL, t);
    m.visitVarInsn(Opcodes.ALOAD, 0);
    m.visitMethodInsn(Opcodes.INVOKEINTERFACE, "Resource", "close", "()V", false);
    m.visitJumpInsn(Opcodes.GOTO, t);

    m.visitVarInsn(Opcodes.ASTORE, 2);
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitVarInsn(Opcodes.ALOAD, 2);
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable", "addSuppressed", "(Ljava/lang/Throwable;)V",
            false);
    m.visitLabel(t);
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitInsn(Opcodes.ATHROW);
    range2.toInclusive = m.instructions.getLast();

    m.visitLabel(e);

    filter.filter(m, context, output);

    assertIgnored(range1, range2);
}

---

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

License:Open Source License

/**
 * javac 9 for//from   w  ww . j a v a 2s .  c om
 *
 * <pre>
 *     try (r0 = open(...); r1 = new ...) {
 *         return ...
 *     } finally {
 *         ...
 *     }
 * </pre>
 *
 * generates
 *
 * <pre>
 *     ...
 *     ASTORE r0
 *     ACONST_NULL
 *     ASTORE primaryExc0
 *
 *     ...
 *     ASTORE r1
 *     ACONST_NULL
 *     ASTORE primaryExc1
 *
 *     ... // body
 *
 *     ALOAD primaryExc1
 *     ALOAD r1
 *     INVOKESTATIC $closeResource:(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V
 *
 *     ALOAD r0
 *     IFNULL n
 *     ALOAD primaryExc0
 *     ALOAD r0
 *     INVOKESTATIC $closeResource:(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V
 *     n:
 *
 *     ... // finally on normal path
 *     ARETURN
 *
 *     ASTORE t
 *     ALOAD t
 *     ASTORE primaryExc1
 *     ALOAD t
 *     ATHROW
 *
 *     ASTORE t
 *     ALOAD primaryExc1
 *     ALOAD r1
 *     INVOKESTATIC  $closeResource:(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V
 *     ALOAD t
 *     ATHROW
 *
 *     ASTORE t
 *     ALOAD t
 *     ASTORE primaryExc0
 *     ALOAD t
 *     ATHROW
 *
 *     ASTORE t
 *     ALOAD r0
 *     IFNULL n
 *     ALOAD primaryExc0
 *     ALOAD r0
 *     INVOKESTATIC  $closeResource:(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V
 *     n:
 *     ALOAD t
 *     ATHROW
 *
 *     ... // additional handlers for catch blocks and finally on exceptional path
 * </pre>
 */
@Test
public void javac9() {
    final Range range0 = new Range();
    final Range range1 = new Range();
    final Range range2 = new Range();
    final Range range3 = new Range();

    final Label handler1 = new Label();
    m.visitTryCatchBlock(handler1, handler1, handler1, "java/lang/Throwable");

    final Label handler2 = new Label();
    m.visitTryCatchBlock(handler2, handler2, handler2, "java/lang/Throwable");

    // r0 = open(...)
    m.visitVarInsn(Opcodes.ASTORE, 1);

    // primaryExc0 = null
    m.visitInsn(Opcodes.ACONST_NULL);
    m.visitVarInsn(Opcodes.ASTORE, 2);

    // r1 = new ..
    m.visitVarInsn(Opcodes.ASTORE, 3);

    // primaryExc1 = null
    m.visitInsn(Opcodes.ACONST_NULL);
    m.visitVarInsn(Opcodes.ASTORE, 4);

    // body
    m.visitInsn(Opcodes.NOP);
    m.visitInsn(Opcodes.ACONST_NULL);
    m.visitVarInsn(Opcodes.ASTORE, 5);

    // $closeResource(primaryExc1, r1)
    m.visitVarInsn(Opcodes.ALOAD, 4);
    range0.fromInclusive = m.instructions.getLast();
    m.visitVarInsn(Opcodes.ALOAD, 3);
    m.visitMethodInsn(Opcodes.INVOKESTATIC, "Fun", "$closeResource",
            "(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V", false);
    range0.toInclusive = m.instructions.getLast();

    // if (r0 != null)
    m.visitVarInsn(Opcodes.ALOAD, 1);
    range2.fromInclusive = m.instructions.getLast();
    final Label l11 = new Label();
    m.visitJumpInsn(Opcodes.IFNULL, l11);
    // $closeResource(primaryExc0, r0)
    m.visitVarInsn(Opcodes.ALOAD, 2);
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitMethodInsn(Opcodes.INVOKESTATIC, "Fun", "$closeResource",
            "(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V", false);
    range2.toInclusive = m.instructions.getLast();
    m.visitLabel(l11);

    // finally
    m.visitInsn(Opcodes.NOP);
    m.visitVarInsn(Opcodes.ALOAD, 5);
    m.visitInsn(Opcodes.ARETURN);

    // catch (Throwable t)
    m.visitLabel(handler1);
    range1.fromInclusive = m.instructions.getLast();
    m.visitVarInsn(Opcodes.ASTORE, 5);
    // primaryExc1 = t
    m.visitVarInsn(Opcodes.ALOAD, 5);
    m.visitVarInsn(Opcodes.ASTORE, 4);
    // throw t
    m.visitVarInsn(Opcodes.ALOAD, 5);
    m.visitInsn(Opcodes.ATHROW);

    // catch (any t)
    m.visitVarInsn(Opcodes.ASTORE, 6);
    // $closeResource(primaryExc1, r1)
    m.visitVarInsn(Opcodes.ALOAD, 4);
    m.visitVarInsn(Opcodes.ALOAD, 3);
    m.visitMethodInsn(Opcodes.INVOKESTATIC, "Fun", "$closeResource",
            "(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V", false);
    m.visitVarInsn(Opcodes.ALOAD, 6);
    m.visitInsn(Opcodes.ATHROW);
    range1.toInclusive = m.instructions.getLast();

    // catch (Throwable t)
    m.visitLabel(handler2);
    range3.fromInclusive = m.instructions.getLast();
    m.visitVarInsn(Opcodes.ASTORE, 3);
    // primaryExc0 = t
    m.visitVarInsn(Opcodes.ALOAD, 3);
    m.visitVarInsn(Opcodes.ASTORE, 2);
    // throw t
    m.visitVarInsn(Opcodes.ALOAD, 3);
    m.visitInsn(Opcodes.ATHROW);

    // catch (any t)
    m.visitVarInsn(Opcodes.ASTORE, 7);
    // if (r0 != null)
    m.visitVarInsn(Opcodes.ALOAD, 1);
    final Label l14 = new Label();
    m.visitJumpInsn(Opcodes.IFNULL, l14);
    // $closeResource(primaryExc0, r0)
    m.visitVarInsn(Opcodes.ALOAD, 2);
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitMethodInsn(Opcodes.INVOKESTATIC, "Fun", "$closeResource",
            "(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V", false);
    m.visitLabel(l14);
    // throw t
    m.visitVarInsn(Opcodes.ALOAD, 7);
    m.visitInsn(Opcodes.ATHROW);
    range3.toInclusive = m.instructions.getLast();

    m.visitVarInsn(Opcodes.ASTORE, 8);
    // finally
    m.visitInsn(Opcodes.NOP);
    m.visitVarInsn(Opcodes.ALOAD, 8);
    m.visitInsn(Opcodes.ATHROW);

    filter.filter(m, context, output);

    assertIgnored(range0, range1, range2, range3);
}

---

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

License:Open Source License

/**
 * javac 7 and 8 for//from  w  w  w  .  ja v  a 2  s  .c  o  m
 *
 * <pre>
 *     try (r0 = ...; r1 = ...) {
 *         return ...
 *     } finally {
 *         ...
 *     }
 * </pre>
 *
 * generate
 *
 * <pre>
 *     ...
 *     ASTORE r0
 *     ACONST_NULL
 *     ASTORE primaryExc0
 *
 *     ...
 *     ASTORE r1
 *     ACONST_NULL
 *     ASTORE primaryExc1
 *
 *     ... // body
 *
 *     ALOAD r1
 *     IFNULL n
 *     ALOAD primaryExc1
 *     IFNULL c
 *     ALOAD r1
 *     INVOKEINTERFACE close:()V
 *     GOTO n
 *     ASTORE t
 *     ALOAD primaryExc1
 *     ALOAD t
 *     INVOKEVIRTUAL java/lang/Throwable.addSuppressed:(Ljava/lang/Throwable;)V
 *     GOTO n
 *     c:
 *     ALOAD r1
 *     INVOKEINTERFACE close:()V
 *     n:
 *
 *     ALOAD r0
 *     IFNULL n
 *     ALOAD primaryExc0
 *     IFNULL c
 *     ALOAD r0
 *     INVOKEVIRTUAL close:()V
 *     GOTO n
 *     ASTORE t
 *     ALOAD primaryExc0
 *     ALOAD t
 *     INVOKEVIRTUAL java/lang/Throwable.addSuppressed:(Ljava/lang/Throwable;)V
 *     GOTO n
 *     c:
 *     ALOAD r0
 *     INVOKEVIRTUAL close:()V
 *     n:
 *
 *     ... // finally on normal path
 *     ARETURN
 *
 *     ASTORE t
 *     ALOAD t
 *     ASTORE primaryExc1
 *     ALOAD t
 *     ATHROW
 *
 *     ASTORE t1
 *     ALOAD r1
 *     IFNULL e
 *     ALOAD primaryExc1
 *     IFNULL c
 *     ALOAD r1
 *     INVOKEINTERFACE close:()V
 *     GOTO e
 *     ASTORE t2
 *     ALOAD primaryExc1
 *     ALOAD t2
 *     INVOKEVIRTUAL java/lang/Throwable.addSuppressed:(Ljava/lang/Throwable;)V
 *     GOTO e
 *     c:
 *     ALOAD r1
 *     INVOKEINTERFACE close:()V
 *     e:
 *     ALOAD t1
 *     ATHROW
 *
 *     ASTORE t
 *     ALOAD t
 *     ASTORE primaryExc0
 *     ALOAD t
 *     ATHROW
 *
 *     ASTORE t1
 *     ALOAD r0
 *     IFNULL e
 *     ALOAD primaryExc0
 *     IFNULL c
 *     ALOAD r0
 *     INVOKEVIRTUAL close:()V
 *     GOTO e
 *     ASTORE t2
 *     ALOAD primaryExc0
 *     ALOAD t2
 *     INVOKEVIRTUAL java/lang/Throwable.addSuppressed:(Ljava/lang/Throwable;)V
 *     GOTO e
 *     c:
 *     ALOAD r0
 *     INVOKEVIRTUAL close:()V
 *     e:
 *     ALOAD t1
 *     ATHROW
 *
 *     ... // additional handlers for catch blocks and finally on exceptional path
 * </pre>
 */
@Test
public void javac_7_8() {
    final Range range0 = new Range();
    final Range range1 = new Range();
    final Range range2 = new Range();
    final Range range3 = new Range();

    final Label handler1 = new Label();
    m.visitTryCatchBlock(handler1, handler1, handler1, "java/lang/Throwable");
    final Label handler2 = new Label();
    m.visitTryCatchBlock(handler2, handler2, handler2, "java/lang/Throwable");

    // r1 = ...
    m.visitVarInsn(Opcodes.ASTORE, 1);

    // primaryExc1 = null
    m.visitInsn(Opcodes.ACONST_NULL);
    m.visitVarInsn(Opcodes.ASTORE, 2);

    // r2 = ...
    m.visitVarInsn(Opcodes.ASTORE, 3);
    // primaryExc2 = null
    m.visitInsn(Opcodes.ACONST_NULL);
    m.visitVarInsn(Opcodes.ASTORE, 4);

    // body
    m.visitInsn(Opcodes.NOP);

    m.visitInsn(Opcodes.ACONST_NULL);
    m.visitVarInsn(Opcodes.ASTORE, 5);

    final Label l15 = new Label();
    // if (r2 != null)
    m.visitVarInsn(Opcodes.ALOAD, 3);
    range0.fromInclusive = m.instructions.getLast();
    m.visitJumpInsn(Opcodes.IFNULL, l15);
    // if (primaryExc2 != null)
    m.visitVarInsn(Opcodes.ALOAD, 4);
    final Label l26 = new Label();
    m.visitJumpInsn(Opcodes.IFNULL, l26);
    // r2.close
    m.visitVarInsn(Opcodes.ALOAD, 3);
    m.visitMethodInsn(Opcodes.INVOKEINTERFACE, "Fun$Resource2", "close", "()V", false);
    m.visitJumpInsn(Opcodes.GOTO, l15);

    m.visitVarInsn(Opcodes.ASTORE, 6);
    m.visitVarInsn(Opcodes.ALOAD, 4);
    m.visitVarInsn(Opcodes.ALOAD, 6);
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable", "addSuppressed", "(Ljava/lang/Throwable;)V",
            false);
    m.visitJumpInsn(Opcodes.GOTO, l15);

    m.visitLabel(l26);

    // r2.close
    m.visitVarInsn(Opcodes.ALOAD, 3);
    m.visitMethodInsn(Opcodes.INVOKEINTERFACE, "Fun$Resource2", "close", "()V", false);
    range0.toInclusive = m.instructions.getLast();
    m.visitLabel(l15);

    // if (r1 != null)
    m.visitVarInsn(Opcodes.ALOAD, 1);
    range2.fromInclusive = m.instructions.getLast();
    final Label l23 = new Label();
    m.visitJumpInsn(Opcodes.IFNULL, l23);
    // if (primaryExc1 != null)
    m.visitVarInsn(Opcodes.ALOAD, 2);
    final Label l27 = new Label();
    m.visitJumpInsn(Opcodes.IFNULL, l27);
    // r1.close
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun$Resource1", "close", "()V", false);
    m.visitJumpInsn(Opcodes.GOTO, l23);

    m.visitVarInsn(Opcodes.ASTORE, 6);
    m.visitVarInsn(Opcodes.ALOAD, 2);
    m.visitVarInsn(Opcodes.ALOAD, 6);
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable", "addSuppressed", "(Ljava/lang/Throwable;)V",
            false);
    m.visitJumpInsn(Opcodes.GOTO, l23);

    m.visitLabel(l27);
    // r1.close
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun$Resource1", "close", "()V", false);
    range2.toInclusive = m.instructions.getLast();
    m.visitLabel(l23);

    // finally
    m.visitInsn(Opcodes.NOP);
    m.visitInsn(Opcodes.ARETURN);

    // catch (Throwable t)
    m.visitLabel(handler1);
    range1.fromInclusive = m.instructions.getLast();
    m.visitVarInsn(Opcodes.ASTORE, 5);
    // primaryExc2 = t
    m.visitVarInsn(Opcodes.ALOAD, 5);
    m.visitVarInsn(Opcodes.ASTORE, 4);
    // throw t
    m.visitVarInsn(Opcodes.ALOAD, 5);
    m.visitInsn(Opcodes.ATHROW);

    // catch (any t)
    m.visitVarInsn(Opcodes.ASTORE, 7);
    // if (r2 != null)
    m.visitVarInsn(Opcodes.ALOAD, 3);
    final Label l28 = new Label();
    m.visitJumpInsn(Opcodes.IFNULL, l28);
    // if (primaryExc2 != null)
    m.visitVarInsn(Opcodes.ALOAD, 4);
    final Label l29 = new Label();
    m.visitJumpInsn(Opcodes.IFNULL, l29);
    // r2.close
    m.visitVarInsn(Opcodes.ALOAD, 3);
    m.visitMethodInsn(Opcodes.INVOKEINTERFACE, "Fun$Resource2", "close", "()V", false);
    m.visitJumpInsn(Opcodes.GOTO, l28);

    m.visitVarInsn(Opcodes.ASTORE, 8);
    m.visitVarInsn(Opcodes.ALOAD, 4);
    m.visitVarInsn(Opcodes.ALOAD, 8);
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable", "addSuppressed", "(Ljava/lang/Throwable;)V",
            false);
    m.visitJumpInsn(Opcodes.GOTO, l28);

    m.visitLabel(l29);
    // r2.close
    m.visitVarInsn(Opcodes.ALOAD, 3);
    m.visitMethodInsn(Opcodes.INVOKEINTERFACE, "Fun$Resource2", "close", "()V", false);
    m.visitLabel(l28);
    // throw t
    m.visitVarInsn(Opcodes.ALOAD, 7);
    m.visitInsn(Opcodes.ATHROW);
    range1.toInclusive = m.instructions.getLast();

    // catch (Throwable t)
    m.visitLabel(handler2);
    range3.fromInclusive = m.instructions.getLast();
    m.visitVarInsn(Opcodes.ASTORE, 3);
    // primaryExc2 = t
    m.visitVarInsn(Opcodes.ALOAD, 3);
    m.visitVarInsn(Opcodes.ASTORE, 2);
    // throw t
    m.visitVarInsn(Opcodes.ALOAD, 3);
    m.visitInsn(Opcodes.ATHROW);

    // catch (any t)
    m.visitVarInsn(Opcodes.ASTORE, 9);
    // if (r1 != null)
    m.visitVarInsn(Opcodes.ALOAD, 1);
    final Label l30 = new Label();
    m.visitJumpInsn(Opcodes.IFNULL, l30);
    // if (primaryExc1 != null)
    m.visitVarInsn(Opcodes.ALOAD, 2);
    final Label l31 = new Label();
    m.visitJumpInsn(Opcodes.IFNULL, l31);
    // r1.close
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun$Resource1", "close", "()V", false);
    m.visitJumpInsn(Opcodes.GOTO, l30);

    m.visitVarInsn(Opcodes.ASTORE, 10);
    m.visitVarInsn(Opcodes.ALOAD, 2);
    m.visitVarInsn(Opcodes.ALOAD, 10);
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable", "addSuppressed", "(Ljava/lang/Throwable;)V",
            false);
    m.visitJumpInsn(Opcodes.GOTO, l30);

    m.visitLabel(l31);
    // r1.close
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun$Resource1", "close", "()V", false);
    m.visitLabel(l30);
    // throw t
    m.visitVarInsn(Opcodes.ALOAD, 9);
    m.visitInsn(Opcodes.ATHROW);
    range3.toInclusive = m.instructions.getLast();

    m.visitVarInsn(Opcodes.ASTORE, 11);
    // finally
    m.visitInsn(Opcodes.NOP);
    m.visitVarInsn(Opcodes.ALOAD, 11);
    m.visitInsn(Opcodes.ATHROW);

    filter.filter(m, context, output);

    assertIgnored(range0, range1, range2, range3);
}

---

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

License:Open Source License

/**
 * javac 9 for//  w  ww  . ja v a 2s . c  o m
 *
 * <pre>
 *     try (r = new ...) {
 *         ...
 *     } finally {
 *         ...
 *     }
 * </pre>
 *
 * generates
 *
 * <pre>
 *     ...
 *     ASTORE r
 *     ACONST_NULL
 *     ASTORE primaryExc
 *
 *     ... // body
 *
 *     ALOAD primaryExc
 *     IFNULL c
 *     ALOAD r
 *     INVOKEVIRTUAL close:()V
 *     GOTO f
 *     ASTORE t
 *     ALOAD primaryExc
 *     ALOAD t
 *     NVOKEVIRTUAL java/lang/Throwable.addSuppressed:(Ljava/lang/Throwable;)V
 *     GOTO f
 *     c:
 *     ALOAD r
 *     INVOKEVIRTUAL close:()V
 *     GOTO f
 *
 *     ASTORE t
 *     ALOAD t
 *     ASTORE primaryExc
 *     ALOAD t
 *     ATHROW
 *
 *     ASTORE t
 *     ALOAD primaryExc
 *     IFNULL c
 *     ALOAD r
 *     INVOKEVIRTUAL close:()V
 *     GOTO L78
 *     ASTORE t2
 *     ALOAD primaryExc
 *     ALOAD t2
 *     INVOKEVIRTUAL java/lang/Throwable.addSuppressed:(Ljava/lang/Throwable;)V
 *     goto e
 *     c:
 *     ALOAD r
 *     INVOKEVIRTUAL close:()V
 *     e:
 *     ALOAD t
 *     ATHROW
 *
 *     f:
 *     ... // finally on normal path
 *     ... // additional handlers for catch blocks and finally on exceptional path
 *     ...
 * </pre>
 */
@Test
public void javac9_omitted_null_check() {
    final Range range0 = new Range();
    final Range range1 = new Range();

    final Label handler = new Label();
    m.visitTryCatchBlock(handler, handler, handler, "java/lang/Throwable");

    // primaryExc = null
    m.visitInsn(Opcodes.ACONST_NULL);
    m.visitVarInsn(Opcodes.ASTORE, 1);

    // r = new ...
    m.visitInsn(Opcodes.NOP);

    final Label end = new Label();
    // "finally" on a normal path
    {
        // if (primaryExc != null)
        m.visitVarInsn(Opcodes.ALOAD, 2);
        range0.fromInclusive = m.instructions.getLast();
        final Label closeLabel = new Label();
        m.visitJumpInsn(Opcodes.IFNULL, closeLabel);
        // r.close
        m.visitVarInsn(Opcodes.ALOAD, 1);
        m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Resource", "close", "()V", false);
        m.visitJumpInsn(Opcodes.GOTO, end);

        // catch (Throwable t)
        m.visitVarInsn(Opcodes.ASTORE, 3);
        // primaryExc.addSuppressed(t)
        m.visitVarInsn(Opcodes.ALOAD, 2);
        m.visitVarInsn(Opcodes.ALOAD, 3);
        m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable", "addSuppressed",
                "(Ljava/lang/Throwable;)V", false);
        m.visitJumpInsn(Opcodes.GOTO, end);

        m.visitLabel(closeLabel);
        // r.close()
        m.visitVarInsn(Opcodes.ALOAD, 1);
        m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Resource", "close", "()V", false);
    }
    m.visitJumpInsn(Opcodes.GOTO, end);
    range0.toInclusive = m.instructions.getLast();
    // catch (Throwable t)
    m.visitLabel(handler);
    {
        range1.fromInclusive = m.instructions.getLast();
        m.visitVarInsn(Opcodes.ASTORE, 3);
        // primaryExc = t
        m.visitVarInsn(Opcodes.ALOAD, 3);
        m.visitVarInsn(Opcodes.ASTORE, 2);
        // throw t
        m.visitVarInsn(Opcodes.ALOAD, 3);
        m.visitInsn(Opcodes.ATHROW);
    }
    // catch (any t)
    m.visitVarInsn(Opcodes.ASTORE, 4);
    // "finally" on exceptional path
    {
        // if (primaryExc != null)
        m.visitVarInsn(Opcodes.ALOAD, 2);
        final Label closeLabel = new Label();
        m.visitJumpInsn(Opcodes.IFNULL, closeLabel);
        m.visitVarInsn(Opcodes.ALOAD, 1);
        m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Resource", "close", "()V", false);
        final Label finallyEndLabel = new Label();
        m.visitJumpInsn(Opcodes.GOTO, finallyEndLabel);

        // catch (Throwable t)
        m.visitVarInsn(Opcodes.ASTORE, 5);
        // primaryExc.addSuppressed(t)
        m.visitVarInsn(Opcodes.ALOAD, 2);
        m.visitVarInsn(Opcodes.ALOAD, 5);
        m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable", "addSuppressed",
                "(Ljava/lang/Throwable;)V", false);
        m.visitJumpInsn(Opcodes.GOTO, finallyEndLabel);

        m.visitLabel(closeLabel);
        // r.close()
        m.visitVarInsn(Opcodes.ALOAD, 1);
        m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Resource", "close", "()V", false);
        m.visitLabel(finallyEndLabel);
    }
    // throw t
    m.visitVarInsn(Opcodes.ALOAD, 4);
    m.visitInsn(Opcodes.ATHROW);
    range1.toInclusive = m.instructions.getLast();

    m.visitLabel(end);

    filter.filter(m, context, output);

    assertIgnored(range0, range1);
}

---

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

License:Open Source License

/**
 * javac 9 for/*from ww  w.  jav  a 2 s .  co  m*/
 *
 * <pre>
 *     try (r = new ...) {
 *       throw ...
 *     }
 * </pre>
 *
 * generates
 *
 * <pre>
 *     ...
 *     ASTORE r
 *     ACONST_NULL
 *     ASTORE primaryExc
 *
 *     ...
 *     ATHROW
 *
 *     ASTORE t
 *     ALOAD t
 *     ASTORE primaryExc
 *     ALOAD t
 *     ATHROW
 *
 *     ASTORE t
 *     ALOAD primaryExc
 *     ALOAD r
 *     INVOKESTATIC  $closeResource:(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V
 *     ALOAD t
 *     ATHROW
 * </pre>
 */
@Test
public void only_exceptional_path() {
    final Label start = new Label();
    final Label handler = new Label();
    m.visitTryCatchBlock(start, handler, handler, "java/lang/Throwable");

    m.visitLabel(start);
    m.visitInsn(Opcodes.ATHROW);
    m.visitLabel(handler);
    m.visitVarInsn(Opcodes.ASTORE, 3);
    m.visitVarInsn(Opcodes.ALOAD, 3);
    m.visitVarInsn(Opcodes.ASTORE, 2);
    m.visitVarInsn(Opcodes.ALOAD, 3);
    m.visitInsn(Opcodes.ATHROW);

    m.visitVarInsn(Opcodes.ASTORE, 4);
    m.visitVarInsn(Opcodes.ALOAD, 2);
    m.visitVarInsn(Opcodes.ALOAD, 1);
    m.visitMethodInsn(Opcodes.INVOKESTATIC, "Fun", "$closeResource",
            "(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V", false);
    m.visitVarInsn(Opcodes.ALOAD, 4);
    m.visitInsn(Opcodes.ATHROW);

    filter.filter(m, context, output);

    assertIgnored();
}

---

From source file:org.jacoco.core.internal.analysis.MethodAnalyzerTest.java

License:Open Source License

private void createTryCatchBlock() {
    Label l1 = new Label();
    Label l2 = new Label();
    Label l3 = new Label();
    Label l4 = new Label();
    method.visitTryCatchBlock(l1, l2, l3, "java/lang/Exception");
    method.visitLabel(l1);//from  w  ww  .java2  s  .c  o  m
    method.visitLineNumber(1001, l1);
    method.visitVarInsn(Opcodes.ALOAD, 0);
    method.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable", "printStackTrace", "()V");
    method.visitLabel(l2);
    method.visitJumpInsn(Opcodes.GOTO, l4);
    method.visitLabel(l3);
    method.visitLineNumber(1002, l3);
    method.visitVarInsn(Opcodes.ASTORE, 1);
    method.visitLabel(l4);
    method.visitLineNumber(1004, l4);
    method.visitInsn(Opcodes.RETURN);
}

---

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

License:Open Source License

public int storeInstance(final MethodVisitor mv, final boolean clinit, final int variable) {
    mv.visitMethodInsn(Opcodes.INVOKESTATIC, className, InstrSupport.INITMETHOD_NAME,
            InstrSupport.INITMETHOD_DESC, false);
    mv.visitVarInsn(Opcodes.ASTORE, variable);
    return 1;/*from  w  w w. ja  va 2  s . c o m*/
}

---

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

License:Open Source License

public int storeInstance(final MethodVisitor mv, final boolean clinit, final int variable) {
    final Handle bootstrapMethod = new Handle(Opcodes.H_INVOKESTATIC, className, InstrSupport.INITMETHOD_NAME,
            B_DESC, isInterface);/*from   www  .ja va2  s  .co  m*/
    // As a workaround for https://bugs.openjdk.java.net/browse/JDK-8216970
    // constant should have type Object
    mv.visitLdcInsn(new ConstantDynamic(InstrSupport.DATAFIELD_NAME, "Ljava/lang/Object;", bootstrapMethod));
    mv.visitTypeInsn(Opcodes.CHECKCAST, "[Z");
    mv.visitVarInsn(Opcodes.ASTORE, variable);
    return 1;
}

---

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

License:Open Source License

@Test
public void should_store_instance_using_condy_and_checkcast() {
    final MethodNode m = new MethodNode();
    final int maxStack = strategy.storeInstance(m, false, 1);

    assertEquals(1, maxStack);//from   w  w  w.  j a v a2s.c o m

    final ConstantDynamic constantDynamic = (ConstantDynamic) ((LdcInsnNode) m.instructions.get(0)).cst;
    assertEquals("$jacocoData", constantDynamic.getName());
    assertEquals("Ljava/lang/Object;", constantDynamic.getDescriptor());

    final Handle bootstrapMethod = constantDynamic.getBootstrapMethod();
    assertEquals(Opcodes.H_INVOKESTATIC, bootstrapMethod.getTag());
    assertEquals("ClassName", bootstrapMethod.getOwner());
    assertEquals("$jacocoInit", bootstrapMethod.getName());
    assertEquals("(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/Class;)[Z",
            bootstrapMethod.getDesc());
    assertTrue(bootstrapMethod.isInterface());

    final TypeInsnNode castInstruction = (TypeInsnNode) m.instructions.get(1);
    assertEquals(Opcodes.CHECKCAST, castInstruction.getOpcode());
    assertEquals("[Z", castInstruction.desc);

    final VarInsnNode storeInstruction = (VarInsnNode) m.instructions.get(2);
    assertEquals(Opcodes.ASTORE, storeInstruction.getOpcode());
    assertEquals(1, storeInstruction.var);

    assertEquals(3, m.instructions.size());
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• »