Example usage for org.objectweb.asm Opcodes ILOAD

Introduction

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

Prototype

int ILOAD

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

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Usage

From source file:org.hua.ast.visitors.BytecodeGeneratorASTVisitor.java

@Override
public void visit(WriteStatement node) throws ASTVisitorException {

    Type type = ASTUtils.getSafeType(node.getExpression());
    LocalIndexPool lip = ASTUtils.getSafeLocalIndexPool(node);
    int li = lip.getLocalIndex(type);
    mn.instructions/*from  w w  w  .  j  ava 2  s.co  m*/
            .add(new FieldInsnNode(Opcodes.GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"));
    System.out.println(
            "***************************************************************-------------------------------------------------------------- "
                    + li);
    mn.instructions.add(new VarInsnNode(type.getOpcode(Opcodes.ILOAD), 0));
    node.getExpression().accept(this);
    mn.instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "java/io/PrintStream", "print",
            Type.getMethodType(Type.VOID_TYPE, type).toString(), false));
    lip.freeLocalIndex(li, type);
}

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

License:Open Source License

private void createIfBranch() {
    final Label l0 = new Label();
    method.visitLabel(l0);//from   w ww.  ja v a 2s  .c  om
    method.visitLineNumber(1001, l0);
    method.visitVarInsn(Opcodes.ILOAD, 1);
    Label l1 = new Label();
    method.visitJumpInsn(Opcodes.IFEQ, l1);
    final Label l2 = new Label();
    method.visitLabel(l2);
    method.visitLineNumber(1002, l2);
    method.visitLdcInsn("a");
    method.visitInsn(Opcodes.ARETURN);
    method.visitLabel(l1);
    method.visitLineNumber(1003, l1);
    method.visitLdcInsn("b");
    method.visitInsn(Opcodes.ARETURN);
}

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

License:Open Source License

private void createIfBranchMerge() {
    final Label l0 = new Label();
    method.visitLabel(l0);/*from   w  w  w.j av a 2 s.  c  o m*/
    method.visitLineNumber(1001, l0);
    method.visitVarInsn(Opcodes.ILOAD, 1);
    Label l1 = new Label();
    method.visitJumpInsn(Opcodes.IFEQ, l1);
    final Label l2 = new Label();
    method.visitLabel(l2);
    method.visitLineNumber(1002, l2);
    method.visitInsn(Opcodes.NOP);
    method.visitLabel(l1);
    method.visitLineNumber(1003, l1);
    method.visitInsn(Opcodes.RETURN);
}

---

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

License:Open Source License

private void createLoop() {
    final Label l0 = new Label();
    method.visitLabel(l0);//from w ww .  java2 s . c  o  m
    method.visitLineNumber(1001, l0);
    method.visitInsn(Opcodes.ICONST_0);
    method.visitVarInsn(Opcodes.ISTORE, 1);
    final Label l1 = new Label();
    method.visitLabel(l1);
    method.visitLineNumber(1002, l1);
    method.visitVarInsn(Opcodes.ILOAD, 1);
    method.visitInsn(Opcodes.ICONST_5);
    final Label l2 = new Label();
    method.visitJumpInsn(Opcodes.IF_ICMPGE, l2);
    method.visitIincInsn(1, 1);
    method.visitJumpInsn(Opcodes.GOTO, l1);
    method.visitLabel(l2);
    method.visitLineNumber(1003, l2);
    method.visitInsn(Opcodes.RETURN);
}

---

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

License:Open Source License

@Test
public void nextIsVar() {
    m.visitInsn(Opcodes.NOP);//from   ww  w  . j  a v a 2 s. co  m
    m.visitVarInsn(Opcodes.ILOAD, 42);

    // should set cursor to null when opcode mismatch
    matcher.cursor = m.instructions.getFirst();
    matcher.nextIsVar(Opcodes.ALOAD, "name");
    assertNull(matcher.cursor);

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

    // should set cursor to null when var mismatch
    matcher.cursor = m.instructions.getFirst();
    matcher.vars.put("name", new VarInsnNode(Opcodes.ILOAD, 13));
    matcher.nextIsVar(Opcodes.ILOAD, "name");
    assertNull(matcher.cursor);

    // should set cursor to next instruction when match
    matcher.cursor = m.instructions.getFirst();
    matcher.vars.put("name", new VarInsnNode(Opcodes.ILOAD, 42));
    matcher.nextIsVar(Opcodes.ILOAD, "name");
    assertSame(m.instructions.getLast(), matcher.cursor);

    // should not do anything when cursor is null
    matcher.cursor = null;
    matcher.nextIsVar(Opcodes.ILOAD, "name");
}

---

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

License:Open Source License

@Test
public void should_filter() {
    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);/*from   w w w  .j  a  v a 2s.  c om*/
    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.RETURN);
    context.superClassName = "java/lang/Enum";

    filter.filter(m, context, output);

    assertIgnored(new Range(m.instructions.getFirst(), m.instructions.getLast()));
}

---

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

License:Open Source License

/**
 * <code><pre>/*from   w w  w.j  ava2s .com*/
 * 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>/*from   w w  w.  ja  va  2 s  . c o m*/
 * enum E {
 *   ;
 *   private E(long p) {
 *   }
 * }
 * </pre></code>
 */
@Test
public void should_not_filter_constructor_with_additional_parameters() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, Opcodes.ACC_PRIVATE, "<init>",
            "(Ljava/lang/String;IJ)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.RETURN);
    context.superClassName = "java/lang/Enum";

    filter.filter(m, context, output);

    assertIgnored();
}

---

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

License:Open Source License

private static MethodNode createMethod(final int access, final String name, final String descriptor) {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, access, name, descriptor, null, null);

    m.visitVarInsn(Opcodes.ILOAD, 2);
    m.visitInsn(Opcodes.ICONST_1);/* w w w . j a  v a  2s.  c  o  m*/
    m.visitInsn(Opcodes.IAND);
    final Label label = new Label();
    m.visitJumpInsn(Opcodes.IFEQ, label);
    // default argument
    m.visitLdcInsn(Integer.valueOf(42));
    m.visitVarInsn(Opcodes.ISTORE, 1);
    m.visitLabel(label);

    m.visitVarInsn(Opcodes.ALOAD, 0);
    m.visitVarInsn(Opcodes.ILOAD, 1);
    m.visitMethodInsn(Opcodes.INVOKESPECIAL, "Target", "origin", "(I)V", false);
    m.visitInsn(Opcodes.RETURN);

    return m;
}

---

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

License:Open Source License

/**
 * <pre>//from w w  w .  j  a v a  2  s .com
 * open class Open {
 *     open fun foo(a: Int = 42) {
 *     }
 * }
 * </pre>
 */
@Test
public void should_filter_open_functions() {
    final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, Opcodes.ACC_SYNTHETIC, "foo$default",
            "(LOpen;IILjava/lang/Object;)V", null, null);
    context.classAnnotations.add(KotlinGeneratedFilter.KOTLIN_METADATA_DESC);
    {
        m.visitVarInsn(Opcodes.ALOAD, 3);
        final Label label = new Label();
        m.visitJumpInsn(Opcodes.IFNULL, label);
        m.visitTypeInsn(Opcodes.NEW, "java/lang/UnsupportedOperationException");
        m.visitInsn(Opcodes.DUP);
        m.visitLdcInsn("Super calls with default arguments not supported in this target, function: foo");
        m.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/UnsupportedOperationException", "<init>",
                "(Ljava/lang/String;)V", false);
        m.visitInsn(Opcodes.ATHROW);
        m.visitLabel(label);
    }
    {
        m.visitVarInsn(Opcodes.ILOAD, 2);
        m.visitInsn(Opcodes.ICONST_1);
        m.visitInsn(Opcodes.IAND);
        final Label label = new Label();
        m.visitJumpInsn(Opcodes.IFEQ, label);
        // default argument
        m.visitLdcInsn(Integer.valueOf(42));
        m.visitVarInsn(Opcodes.ISTORE, 1);
        m.visitLabel(label);

        m.visitVarInsn(Opcodes.ALOAD, 0);
        m.visitVarInsn(Opcodes.ILOAD, 1);
        m.visitMethodInsn(Opcodes.INVOKESPECIAL, "Open", "foo", "(I)V", false);
        m.visitInsn(Opcodes.RETURN);
    }

    filter.filter(m, context, output);

    assertIgnored(new Range(m.instructions.getFirst(), m.instructions.get(6)),
            new Range(m.instructions.get(11), m.instructions.get(11)));
}

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