Java Code Examples for com.sun.org.apache.bcel.internal.generic.LocalVariableGen#getStart()

The following examples show how to use com.sun.org.apache.bcel.internal.generic.LocalVariableGen#getStart() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: MethodGenerator.java    From jdk1.8-source-analysis with Apache License 2.0 5 votes vote down vote up 
/**
 * Determines whether a particular variable is in use at a particular offset
 * in the byte code for this method.
 * <p><b>Preconditions:</b>
 * <ul>
 * <li>The {@link InstructionList#setPositions()} has been called for the
 * {@link InstructionList} associated with this {@link MethodGenerator}.
 * </li></ul></p>
 * @param lvg the {@link LocalVariableGen} for the variable
 * @param offset the position in the byte code
 * @return <code>true</code> if and only if the specified variable is in
 * use at the particular byte code offset.
 */
boolean offsetInLocalVariableGenRange(LocalVariableGen lvg, int offset) {
    InstructionHandle lvgStart = lvg.getStart();
    InstructionHandle lvgEnd = lvg.getEnd();

    // If no start handle is recorded for the LocalVariableGen, it is
    // assumed to be in use from the beginning of the method.
    if (lvgStart == null) {
        lvgStart = getInstructionList().getStart();
    }

    // If no end handle is recorded for the LocalVariableGen, it is assumed
    // to be in use to the end of the method.
    if (lvgEnd == null) {
        lvgEnd = getInstructionList().getEnd();
    }

    // Does the range of the instruction include the specified offset?
    // Note that the InstructionHandle.getPosition method returns the
    // offset of the beginning of an instruction.  A LocalVariableGen's
    // range includes the end instruction itself, so that instruction's
    // length must be taken into consideration in computing whether the
    // varible is in range at a particular offset.
    return ((lvgStart.getPosition() <= offset)
                && (lvgEnd.getPosition()
                        + lvgEnd.getInstruction().getLength() >= offset));
}
Example 2
Source File: MethodGenerator.java    From openjdk-8 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Determines whether a particular variable is in use at a particular offset
 * in the byte code for this method.
 * <p><b>Preconditions:</b>
 * <ul>
 * <li>The {@link InstructionList#setPositions()} has been called for the
 * {@link InstructionList} associated with this {@link MethodGenerator}.
 * </li></ul></p>
 * @param lvg the {@link LocalVariableGen} for the variable
 * @param offset the position in the byte code
 * @return <code>true</code> if and only if the specified variable is in
 * use at the particular byte code offset.
 */
boolean offsetInLocalVariableGenRange(LocalVariableGen lvg, int offset) {
    InstructionHandle lvgStart = lvg.getStart();
    InstructionHandle lvgEnd = lvg.getEnd();

    // If no start handle is recorded for the LocalVariableGen, it is
    // assumed to be in use from the beginning of the method.
    if (lvgStart == null) {
        lvgStart = getInstructionList().getStart();
    }

    // If no end handle is recorded for the LocalVariableGen, it is assumed
    // to be in use to the end of the method.
    if (lvgEnd == null) {
        lvgEnd = getInstructionList().getEnd();
    }

    // Does the range of the instruction include the specified offset?
    // Note that the InstructionHandle.getPosition method returns the
    // offset of the beginning of an instruction.  A LocalVariableGen's
    // range includes the end instruction itself, so that instruction's
    // length must be taken into consideration in computing whether the
    // varible is in range at a particular offset.
    return ((lvgStart.getPosition() <= offset)
                && (lvgEnd.getPosition()
                        + lvgEnd.getInstruction().getLength() >= offset));
}
Example 3
Source File: MethodGenerator.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Determines whether a particular variable is in use at a particular offset
 * in the byte code for this method.
 * <p><b>Preconditions:</b>
 * <ul>
 * <li>The {@link InstructionList#setPositions()} has been called for the
 * {@link InstructionList} associated with this {@link MethodGenerator}.
 * </li></ul></p>
 * @param lvg the {@link LocalVariableGen} for the variable
 * @param offset the position in the byte code
 * @return <code>true</code> if and only if the specified variable is in
 * use at the particular byte code offset.
 */
boolean offsetInLocalVariableGenRange(LocalVariableGen lvg, int offset) {
    InstructionHandle lvgStart = lvg.getStart();
    InstructionHandle lvgEnd = lvg.getEnd();

    // If no start handle is recorded for the LocalVariableGen, it is
    // assumed to be in use from the beginning of the method.
    if (lvgStart == null) {
        lvgStart = getInstructionList().getStart();
    }

    // If no end handle is recorded for the LocalVariableGen, it is assumed
    // to be in use to the end of the method.
    if (lvgEnd == null) {
        lvgEnd = getInstructionList().getEnd();
    }

    // Does the range of the instruction include the specified offset?
    // Note that the InstructionHandle.getPosition method returns the
    // offset of the beginning of an instruction.  A LocalVariableGen's
    // range includes the end instruction itself, so that instruction's
    // length must be taken into consideration in computing whether the
    // varible is in range at a particular offset.
    return ((lvgStart.getPosition() <= offset)
                && (lvgEnd.getPosition()
                        + lvgEnd.getInstruction().getLength() >= offset));
}
Example 4
Source File: MethodGenerator.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Determines whether a particular variable is in use at a particular offset
 * in the byte code for this method.
 * <p><b>Preconditions:</b>
 * <ul>
 * <li>The {@link InstructionList#setPositions()} has been called for the
 * {@link InstructionList} associated with this {@link MethodGenerator}.
 * </li></ul></p>
 * @param lvg the {@link LocalVariableGen} for the variable
 * @param offset the position in the byte code
 * @return <code>true</code> if and only if the specified variable is in
 * use at the particular byte code offset.
 */
boolean offsetInLocalVariableGenRange(LocalVariableGen lvg, int offset) {
    InstructionHandle lvgStart = lvg.getStart();
    InstructionHandle lvgEnd = lvg.getEnd();

    // If no start handle is recorded for the LocalVariableGen, it is
    // assumed to be in use from the beginning of the method.
    if (lvgStart == null) {
        lvgStart = getInstructionList().getStart();
    }

    // If no end handle is recorded for the LocalVariableGen, it is assumed
    // to be in use to the end of the method.
    if (lvgEnd == null) {
        lvgEnd = getInstructionList().getEnd();
    }

    // Does the range of the instruction include the specified offset?
    // Note that the InstructionHandle.getPosition method returns the
    // offset of the beginning of an instruction.  A LocalVariableGen's
    // range includes the end instruction itself, so that instruction's
    // length must be taken into consideration in computing whether the
    // varible is in range at a particular offset.
    return ((lvgStart.getPosition() <= offset)
                && (lvgEnd.getPosition()
                        + lvgEnd.getInstruction().getLength() >= offset));
}
Example 5
Source File: MethodGenerator.java    From hottub with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Determines whether a particular variable is in use at a particular offset
 * in the byte code for this method.
 * <p><b>Preconditions:</b>
 * <ul>
 * <li>The {@link InstructionList#setPositions()} has been called for the
 * {@link InstructionList} associated with this {@link MethodGenerator}.
 * </li></ul></p>
 * @param lvg the {@link LocalVariableGen} for the variable
 * @param offset the position in the byte code
 * @return <code>true</code> if and only if the specified variable is in
 * use at the particular byte code offset.
 */
boolean offsetInLocalVariableGenRange(LocalVariableGen lvg, int offset) {
    InstructionHandle lvgStart = lvg.getStart();
    InstructionHandle lvgEnd = lvg.getEnd();

    // If no start handle is recorded for the LocalVariableGen, it is
    // assumed to be in use from the beginning of the method.
    if (lvgStart == null) {
        lvgStart = getInstructionList().getStart();
    }

    // If no end handle is recorded for the LocalVariableGen, it is assumed
    // to be in use to the end of the method.
    if (lvgEnd == null) {
        lvgEnd = getInstructionList().getEnd();
    }

    // Does the range of the instruction include the specified offset?
    // Note that the InstructionHandle.getPosition method returns the
    // offset of the beginning of an instruction.  A LocalVariableGen's
    // range includes the end instruction itself, so that instruction's
    // length must be taken into consideration in computing whether the
    // varible is in range at a particular offset.
    return ((lvgStart.getPosition() <= offset)
                && (lvgEnd.getPosition()
                        + lvgEnd.getInstruction().getLength() >= offset));
}
Example 6
Source File: MethodGenerator.java    From JDKSourceCode1.8 with MIT License 5 votes vote down vote up 
/**
 * Determines whether a particular variable is in use at a particular offset
 * in the byte code for this method.
 * <p><b>Preconditions:</b>
 * <ul>
 * <li>The {@link InstructionList#setPositions()} has been called for the
 * {@link InstructionList} associated with this {@link MethodGenerator}.
 * </li></ul></p>
 * @param lvg the {@link LocalVariableGen} for the variable
 * @param offset the position in the byte code
 * @return <code>true</code> if and only if the specified variable is in
 * use at the particular byte code offset.
 */
boolean offsetInLocalVariableGenRange(LocalVariableGen lvg, int offset) {
    InstructionHandle lvgStart = lvg.getStart();
    InstructionHandle lvgEnd = lvg.getEnd();

    // If no start handle is recorded for the LocalVariableGen, it is
    // assumed to be in use from the beginning of the method.
    if (lvgStart == null) {
        lvgStart = getInstructionList().getStart();
    }

    // If no end handle is recorded for the LocalVariableGen, it is assumed
    // to be in use to the end of the method.
    if (lvgEnd == null) {
        lvgEnd = getInstructionList().getEnd();
    }

    // Does the range of the instruction include the specified offset?
    // Note that the InstructionHandle.getPosition method returns the
    // offset of the beginning of an instruction.  A LocalVariableGen's
    // range includes the end instruction itself, so that instruction's
    // length must be taken into consideration in computing whether the
    // varible is in range at a particular offset.
    return ((lvgStart.getPosition() <= offset)
                && (lvgEnd.getPosition()
                        + lvgEnd.getInstruction().getLength() >= offset));
}
Example 7
Source File: MethodGenerator.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Determines whether a particular variable is in use at a particular offset
 * in the byte code for this method.
 * <p><b>Preconditions:</b>
 * <ul>
 * <li>The {@link InstructionList#setPositions()} has been called for the
 * {@link InstructionList} associated with this {@link MethodGenerator}.
 * </li></ul></p>
 * @param lvg the {@link LocalVariableGen} for the variable
 * @param offset the position in the byte code
 * @return <code>true</code> if and only if the specified variable is in
 * use at the particular byte code offset.
 */
boolean offsetInLocalVariableGenRange(LocalVariableGen lvg, int offset) {
    InstructionHandle lvgStart = lvg.getStart();
    InstructionHandle lvgEnd = lvg.getEnd();

    // If no start handle is recorded for the LocalVariableGen, it is
    // assumed to be in use from the beginning of the method.
    if (lvgStart == null) {
        lvgStart = getInstructionList().getStart();
    }

    // If no end handle is recorded for the LocalVariableGen, it is assumed
    // to be in use to the end of the method.
    if (lvgEnd == null) {
        lvgEnd = getInstructionList().getEnd();
    }

    // Does the range of the instruction include the specified offset?
    // Note that the InstructionHandle.getPosition method returns the
    // offset of the beginning of an instruction.  A LocalVariableGen's
    // range includes the end instruction itself, so that instruction's
    // length must be taken into consideration in computing whether the
    // varible is in range at a particular offset.
    return ((lvgStart.getPosition() <= offset)
                && (lvgEnd.getPosition()
                        + lvgEnd.getInstruction().getLength() >= offset));
}
Example 8
Source File: MethodGenerator.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Determines whether a particular variable is in use at a particular offset
 * in the byte code for this method.
 * <p><b>Preconditions:</b>
 * <ul>
 * <li>The {@link InstructionList#setPositions()} has been called for the
 * {@link InstructionList} associated with this {@link MethodGenerator}.
 * </li></ul></p>
 * @param lvg the {@link LocalVariableGen} for the variable
 * @param offset the position in the byte code
 * @return <code>true</code> if and only if the specified variable is in
 * use at the particular byte code offset.
 */
boolean offsetInLocalVariableGenRange(LocalVariableGen lvg, int offset) {
    InstructionHandle lvgStart = lvg.getStart();
    InstructionHandle lvgEnd = lvg.getEnd();

    // If no start handle is recorded for the LocalVariableGen, it is
    // assumed to be in use from the beginning of the method.
    if (lvgStart == null) {
        lvgStart = getInstructionList().getStart();
    }

    // If no end handle is recorded for the LocalVariableGen, it is assumed
    // to be in use to the end of the method.
    if (lvgEnd == null) {
        lvgEnd = getInstructionList().getEnd();
    }

    // Does the range of the instruction include the specified offset?
    // Note that the InstructionHandle.getPosition method returns the
    // offset of the beginning of an instruction.  A LocalVariableGen's
    // range includes the end instruction itself, so that instruction's
    // length must be taken into consideration in computing whether the
    // varible is in range at a particular offset.
    return ((lvgStart.getPosition() <= offset)
                && (lvgEnd.getPosition()
                        + lvgEnd.getInstruction().getLength() >= offset));
}
Example 9
Source File: MethodGenerator.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Determines whether a particular variable is in use at a particular offset
 * in the byte code for this method.
 * <p><b>Preconditions:</b>
 * <ul>
 * <li>The {@link InstructionList#setPositions()} has been called for the
 * {@link InstructionList} associated with this {@link MethodGenerator}.
 * </li></ul></p>
 * @param lvg the {@link LocalVariableGen} for the variable
 * @param offset the position in the byte code
 * @return <code>true</code> if and only if the specified variable is in
 * use at the particular byte code offset.
 */
boolean offsetInLocalVariableGenRange(LocalVariableGen lvg, int offset) {
    InstructionHandle lvgStart = lvg.getStart();
    InstructionHandle lvgEnd = lvg.getEnd();

    // If no start handle is recorded for the LocalVariableGen, it is
    // assumed to be in use from the beginning of the method.
    if (lvgStart == null) {
        lvgStart = getInstructionList().getStart();
    }

    // If no end handle is recorded for the LocalVariableGen, it is assumed
    // to be in use to the end of the method.
    if (lvgEnd == null) {
        lvgEnd = getInstructionList().getEnd();
    }

    // Does the range of the instruction include the specified offset?
    // Note that the InstructionHandle.getPosition method returns the
    // offset of the beginning of an instruction.  A LocalVariableGen's
    // range includes the end instruction itself, so that instruction's
    // length must be taken into consideration in computing whether the
    // varible is in range at a particular offset.
    return ((lvgStart.getPosition() <= offset)
                && (lvgEnd.getPosition()
                        + lvgEnd.getInstruction().getLength() >= offset));
}
Example 10
Source File: MethodGenerator.java    From Bytecoder with Apache License 2.0 5 votes vote down vote up 
/**
 * Determines whether a particular variable is in use at a particular offset
 * in the byte code for this method.
 * <p><b>Preconditions:</b>
 * <ul>
 * <li>The {@link InstructionList#setPositions()} has been called for the
 * {@link InstructionList} associated with this {@link MethodGenerator}.
 * </li></ul></p>
 * @param lvg the {@link LocalVariableGen} for the variable
 * @param offset the position in the byte code
 * @return <code>true</code> if and only if the specified variable is in
 * use at the particular byte code offset.
 */
boolean offsetInLocalVariableGenRange(LocalVariableGen lvg, int offset) {
    InstructionHandle lvgStart = lvg.getStart();
    InstructionHandle lvgEnd = lvg.getEnd();

    // If no start handle is recorded for the LocalVariableGen, it is
    // assumed to be in use from the beginning of the method.
    if (lvgStart == null) {
        lvgStart = getInstructionList().getStart();
    }

    // If no end handle is recorded for the LocalVariableGen, it is assumed
    // to be in use to the end of the method.
    if (lvgEnd == null) {
        lvgEnd = getInstructionList().getEnd();
    }

    // Does the range of the instruction include the specified offset?
    // Note that the InstructionHandle.getPosition method returns the
    // offset of the beginning of an instruction.  A LocalVariableGen's
    // range includes the end instruction itself, so that instruction's
    // length must be taken into consideration in computing whether the
    // varible is in range at a particular offset.
    return ((lvgStart.getPosition() <= offset)
                && (lvgEnd.getPosition()
                        + lvgEnd.getInstruction().getLength() >= offset));
}
Example 11
Source File: ParentPattern.java    From openjdk-8 with GNU General Public License v2.0 4 votes vote down vote up 
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    final LocalVariableGen local =
        methodGen.addLocalVariable2("ppt",
                                    Util.getJCRefType(NODE_SIG),
                                    null);

    final com.sun.org.apache.bcel.internal.generic.Instruction loadLocal =
        new ILOAD(local.getIndex());
    final com.sun.org.apache.bcel.internal.generic.Instruction storeLocal =
        new ISTORE(local.getIndex());

    if (_right.isWildcard()) {
        il.append(methodGen.loadDOM());
        il.append(SWAP);
    }
    else if (_right instanceof StepPattern) {
        il.append(DUP);
        local.setStart(il.append(storeLocal));

        _right.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }
    else {
        _right.translate(classGen, methodGen);

        if (_right instanceof AncestorPattern) {
            il.append(methodGen.loadDOM());
            il.append(SWAP);
        }
    }

    final int getParent = cpg.addInterfaceMethodref(DOM_INTF,
                                                    GET_PARENT,
                                                    GET_PARENT_SIG);
    il.append(new INVOKEINTERFACE(getParent, 2));

    final SyntaxTreeNode p = getParent();
    if (p == null || p instanceof Instruction ||
        p instanceof TopLevelElement)
    {
        _left.translate(classGen, methodGen);
    }
    else {
        il.append(DUP);
        InstructionHandle storeInst = il.append(storeLocal);

        if (local.getStart() == null) {
            local.setStart(storeInst);
        }

        _left.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }

    methodGen.removeLocalVariable(local);

    /*
     * If _right is an ancestor pattern, backpatch _left false
     * list to the loop that searches for more ancestors.
     */
    if (_right instanceof AncestorPattern) {
        final AncestorPattern ancestor = (AncestorPattern) _right;
        _left.backPatchFalseList(ancestor.getLoopHandle());    // clears list
    }

    _trueList.append(_right._trueList.append(_left._trueList));
    _falseList.append(_right._falseList.append(_left._falseList));
}
Example 12
Source File: ParentPattern.java    From openjdk-8-source with GNU General Public License v2.0 4 votes vote down vote up 
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    final LocalVariableGen local =
        methodGen.addLocalVariable2("ppt",
                                    Util.getJCRefType(NODE_SIG),
                                    null);

    final com.sun.org.apache.bcel.internal.generic.Instruction loadLocal =
        new ILOAD(local.getIndex());
    final com.sun.org.apache.bcel.internal.generic.Instruction storeLocal =
        new ISTORE(local.getIndex());

    if (_right.isWildcard()) {
        il.append(methodGen.loadDOM());
        il.append(SWAP);
    }
    else if (_right instanceof StepPattern) {
        il.append(DUP);
        local.setStart(il.append(storeLocal));

        _right.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }
    else {
        _right.translate(classGen, methodGen);

        if (_right instanceof AncestorPattern) {
            il.append(methodGen.loadDOM());
            il.append(SWAP);
        }
    }

    final int getParent = cpg.addInterfaceMethodref(DOM_INTF,
                                                    GET_PARENT,
                                                    GET_PARENT_SIG);
    il.append(new INVOKEINTERFACE(getParent, 2));

    final SyntaxTreeNode p = getParent();
    if (p == null || p instanceof Instruction ||
        p instanceof TopLevelElement)
    {
        _left.translate(classGen, methodGen);
    }
    else {
        il.append(DUP);
        InstructionHandle storeInst = il.append(storeLocal);

        if (local.getStart() == null) {
            local.setStart(storeInst);
        }

        _left.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }

    methodGen.removeLocalVariable(local);

    /*
     * If _right is an ancestor pattern, backpatch _left false
     * list to the loop that searches for more ancestors.
     */
    if (_right instanceof AncestorPattern) {
        final AncestorPattern ancestor = (AncestorPattern) _right;
        _left.backPatchFalseList(ancestor.getLoopHandle());    // clears list
    }

    _trueList.append(_right._trueList.append(_left._trueList));
    _falseList.append(_right._falseList.append(_left._falseList));
}
Example 13
Source File: ParentPattern.java    From hottub with GNU General Public License v2.0 4 votes vote down vote up 
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    final LocalVariableGen local =
        methodGen.addLocalVariable2("ppt",
                                    Util.getJCRefType(NODE_SIG),
                                    null);

    final com.sun.org.apache.bcel.internal.generic.Instruction loadLocal =
        new ILOAD(local.getIndex());
    final com.sun.org.apache.bcel.internal.generic.Instruction storeLocal =
        new ISTORE(local.getIndex());

    if (_right.isWildcard()) {
        il.append(methodGen.loadDOM());
        il.append(SWAP);
    }
    else if (_right instanceof StepPattern) {
        il.append(DUP);
        local.setStart(il.append(storeLocal));

        _right.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }
    else {
        _right.translate(classGen, methodGen);

        if (_right instanceof AncestorPattern) {
            il.append(methodGen.loadDOM());
            il.append(SWAP);
        }
    }

    final int getParent = cpg.addInterfaceMethodref(DOM_INTF,
                                                    GET_PARENT,
                                                    GET_PARENT_SIG);
    il.append(new INVOKEINTERFACE(getParent, 2));

    final SyntaxTreeNode p = getParent();
    if (p == null || p instanceof Instruction ||
        p instanceof TopLevelElement)
    {
        _left.translate(classGen, methodGen);
    }
    else {
        il.append(DUP);
        InstructionHandle storeInst = il.append(storeLocal);

        if (local.getStart() == null) {
            local.setStart(storeInst);
        }

        _left.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }

    methodGen.removeLocalVariable(local);

    /*
     * If _right is an ancestor pattern, backpatch _left false
     * list to the loop that searches for more ancestors.
     */
    if (_right instanceof AncestorPattern) {
        final AncestorPattern ancestor = (AncestorPattern) _right;
        _left.backPatchFalseList(ancestor.getLoopHandle());    // clears list
    }

    _trueList.append(_right._trueList.append(_left._trueList));
    _falseList.append(_right._falseList.append(_left._falseList));
}
Example 14
Source File: ParentPattern.java    From openjdk-jdk9 with GNU General Public License v2.0 4 votes vote down vote up 
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    final LocalVariableGen local =
        methodGen.addLocalVariable2("ppt",
                                    Util.getJCRefType(NODE_SIG),
                                    null);

    final com.sun.org.apache.bcel.internal.generic.Instruction loadLocal =
        new ILOAD(local.getIndex());
    final com.sun.org.apache.bcel.internal.generic.Instruction storeLocal =
        new ISTORE(local.getIndex());

    if (_right.isWildcard()) {
        il.append(methodGen.loadDOM());
        il.append(SWAP);
    }
    else if (_right instanceof StepPattern) {
        il.append(DUP);
        local.setStart(il.append(storeLocal));

        _right.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }
    else {
        _right.translate(classGen, methodGen);

        if (_right instanceof AncestorPattern) {
            il.append(methodGen.loadDOM());
            il.append(SWAP);
        }
    }

    final int getParent = cpg.addInterfaceMethodref(DOM_INTF,
                                                    GET_PARENT,
                                                    GET_PARENT_SIG);
    il.append(new INVOKEINTERFACE(getParent, 2));

    final SyntaxTreeNode p = getParent();
    if (p == null || p instanceof Instruction ||
        p instanceof TopLevelElement)
    {
        _left.translate(classGen, methodGen);
    }
    else {
        il.append(DUP);
        InstructionHandle storeInst = il.append(storeLocal);

        if (local.getStart() == null) {
            local.setStart(storeInst);
        }

        _left.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }

    methodGen.removeLocalVariable(local);

    /*
     * If _right is an ancestor pattern, backpatch _left false
     * list to the loop that searches for more ancestors.
     */
    if (_right instanceof AncestorPattern) {
        final AncestorPattern ancestor = (AncestorPattern) _right;
        _left.backPatchFalseList(ancestor.getLoopHandle());    // clears list
    }

    _trueList.append(_right._trueList.append(_left._trueList));
    _falseList.append(_right._falseList.append(_left._falseList));
}
Example 15
Source File: ParentPattern.java    From Bytecoder with Apache License 2.0 4 votes vote down vote up 
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    final LocalVariableGen local =
        methodGen.addLocalVariable2("ppt",
                                    Util.getJCRefType(NODE_SIG),
                                    null);

    final com.sun.org.apache.bcel.internal.generic.Instruction loadLocal =
        new ILOAD(local.getIndex());
    final com.sun.org.apache.bcel.internal.generic.Instruction storeLocal =
        new ISTORE(local.getIndex());

    if (_right.isWildcard()) {
        il.append(methodGen.loadDOM());
        il.append(SWAP);
    }
    else if (_right instanceof StepPattern) {
        il.append(DUP);
        local.setStart(il.append(storeLocal));

        _right.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }
    else {
        _right.translate(classGen, methodGen);

        if (_right instanceof AncestorPattern) {
            il.append(methodGen.loadDOM());
            il.append(SWAP);
        }
    }

    final int getParent = cpg.addInterfaceMethodref(DOM_INTF,
                                                    GET_PARENT,
                                                    GET_PARENT_SIG);
    il.append(new INVOKEINTERFACE(getParent, 2));

    final SyntaxTreeNode p = getParent();
    if (p == null || p instanceof Instruction ||
        p instanceof TopLevelElement)
    {
        _left.translate(classGen, methodGen);
    }
    else {
        il.append(DUP);
        InstructionHandle storeInst = il.append(storeLocal);

        if (local.getStart() == null) {
            local.setStart(storeInst);
        }

        _left.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }

    methodGen.removeLocalVariable(local);

    /*
     * If _right is an ancestor pattern, backpatch _left false
     * list to the loop that searches for more ancestors.
     */
    if (_right instanceof AncestorPattern) {
        final AncestorPattern ancestor = (AncestorPattern) _right;
        _left.backPatchFalseList(ancestor.getLoopHandle());    // clears list
    }

    _trueList.append(_right._trueList.append(_left._trueList));
    _falseList.append(_right._falseList.append(_left._falseList));
}
Example 16
Source File: ParentPattern.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 4 votes vote down vote up 
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    final LocalVariableGen local =
        methodGen.addLocalVariable2("ppt",
                                    Util.getJCRefType(NODE_SIG),
                                    null);

    final com.sun.org.apache.bcel.internal.generic.Instruction loadLocal =
        new ILOAD(local.getIndex());
    final com.sun.org.apache.bcel.internal.generic.Instruction storeLocal =
        new ISTORE(local.getIndex());

    if (_right.isWildcard()) {
        il.append(methodGen.loadDOM());
        il.append(SWAP);
    }
    else if (_right instanceof StepPattern) {
        il.append(DUP);
        local.setStart(il.append(storeLocal));

        _right.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }
    else {
        _right.translate(classGen, methodGen);

        if (_right instanceof AncestorPattern) {
            il.append(methodGen.loadDOM());
            il.append(SWAP);
        }
    }

    final int getParent = cpg.addInterfaceMethodref(DOM_INTF,
                                                    GET_PARENT,
                                                    GET_PARENT_SIG);
    il.append(new INVOKEINTERFACE(getParent, 2));

    final SyntaxTreeNode p = getParent();
    if (p == null || p instanceof Instruction ||
        p instanceof TopLevelElement)
    {
        _left.translate(classGen, methodGen);
    }
    else {
        il.append(DUP);
        InstructionHandle storeInst = il.append(storeLocal);

        if (local.getStart() == null) {
            local.setStart(storeInst);
        }

        _left.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }

    methodGen.removeLocalVariable(local);

    /*
     * If _right is an ancestor pattern, backpatch _left false
     * list to the loop that searches for more ancestors.
     */
    if (_right instanceof AncestorPattern) {
        final AncestorPattern ancestor = (AncestorPattern) _right;
        _left.backPatchFalseList(ancestor.getLoopHandle());    // clears list
    }

    _trueList.append(_right._trueList.append(_left._trueList));
    _falseList.append(_right._falseList.append(_left._falseList));
}
Example 17
Source File: ParentPattern.java    From openjdk-jdk8u with GNU General Public License v2.0 4 votes vote down vote up 
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    final LocalVariableGen local =
        methodGen.addLocalVariable2("ppt",
                                    Util.getJCRefType(NODE_SIG),
                                    null);

    final com.sun.org.apache.bcel.internal.generic.Instruction loadLocal =
        new ILOAD(local.getIndex());
    final com.sun.org.apache.bcel.internal.generic.Instruction storeLocal =
        new ISTORE(local.getIndex());

    if (_right.isWildcard()) {
        il.append(methodGen.loadDOM());
        il.append(SWAP);
    }
    else if (_right instanceof StepPattern) {
        il.append(DUP);
        local.setStart(il.append(storeLocal));

        _right.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }
    else {
        _right.translate(classGen, methodGen);

        if (_right instanceof AncestorPattern) {
            il.append(methodGen.loadDOM());
            il.append(SWAP);
        }
    }

    final int getParent = cpg.addInterfaceMethodref(DOM_INTF,
                                                    GET_PARENT,
                                                    GET_PARENT_SIG);
    il.append(new INVOKEINTERFACE(getParent, 2));

    final SyntaxTreeNode p = getParent();
    if (p == null || p instanceof Instruction ||
        p instanceof TopLevelElement)
    {
        _left.translate(classGen, methodGen);
    }
    else {
        il.append(DUP);
        InstructionHandle storeInst = il.append(storeLocal);

        if (local.getStart() == null) {
            local.setStart(storeInst);
        }

        _left.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }

    methodGen.removeLocalVariable(local);

    /*
     * If _right is an ancestor pattern, backpatch _left false
     * list to the loop that searches for more ancestors.
     */
    if (_right instanceof AncestorPattern) {
        final AncestorPattern ancestor = (AncestorPattern) _right;
        _left.backPatchFalseList(ancestor.getLoopHandle());    // clears list
    }

    _trueList.append(_right._trueList.append(_left._trueList));
    _falseList.append(_right._falseList.append(_left._falseList));
}
Example 18
Source File: ParentPattern.java    From JDKSourceCode1.8 with MIT License 4 votes vote down vote up 
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    final LocalVariableGen local =
        methodGen.addLocalVariable2("ppt",
                                    Util.getJCRefType(NODE_SIG),
                                    null);

    final com.sun.org.apache.bcel.internal.generic.Instruction loadLocal =
        new ILOAD(local.getIndex());
    final com.sun.org.apache.bcel.internal.generic.Instruction storeLocal =
        new ISTORE(local.getIndex());

    if (_right.isWildcard()) {
        il.append(methodGen.loadDOM());
        il.append(SWAP);
    }
    else if (_right instanceof StepPattern) {
        il.append(DUP);
        local.setStart(il.append(storeLocal));

        _right.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }
    else {
        _right.translate(classGen, methodGen);

        if (_right instanceof AncestorPattern) {
            il.append(methodGen.loadDOM());
            il.append(SWAP);
        }
    }

    final int getParent = cpg.addInterfaceMethodref(DOM_INTF,
                                                    GET_PARENT,
                                                    GET_PARENT_SIG);
    il.append(new INVOKEINTERFACE(getParent, 2));

    final SyntaxTreeNode p = getParent();
    if (p == null || p instanceof Instruction ||
        p instanceof TopLevelElement)
    {
        _left.translate(classGen, methodGen);
    }
    else {
        il.append(DUP);
        InstructionHandle storeInst = il.append(storeLocal);

        if (local.getStart() == null) {
            local.setStart(storeInst);
        }

        _left.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }

    methodGen.removeLocalVariable(local);

    /*
     * If _right is an ancestor pattern, backpatch _left false
     * list to the loop that searches for more ancestors.
     */
    if (_right instanceof AncestorPattern) {
        final AncestorPattern ancestor = (AncestorPattern) _right;
        _left.backPatchFalseList(ancestor.getLoopHandle());    // clears list
    }

    _trueList.append(_right._trueList.append(_left._trueList));
    _falseList.append(_right._falseList.append(_left._falseList));
}
Example 19
Source File: ParentPattern.java    From jdk8u60 with GNU General Public License v2.0 4 votes vote down vote up 
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    final LocalVariableGen local =
        methodGen.addLocalVariable2("ppt",
                                    Util.getJCRefType(NODE_SIG),
                                    null);

    final com.sun.org.apache.bcel.internal.generic.Instruction loadLocal =
        new ILOAD(local.getIndex());
    final com.sun.org.apache.bcel.internal.generic.Instruction storeLocal =
        new ISTORE(local.getIndex());

    if (_right.isWildcard()) {
        il.append(methodGen.loadDOM());
        il.append(SWAP);
    }
    else if (_right instanceof StepPattern) {
        il.append(DUP);
        local.setStart(il.append(storeLocal));

        _right.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }
    else {
        _right.translate(classGen, methodGen);

        if (_right instanceof AncestorPattern) {
            il.append(methodGen.loadDOM());
            il.append(SWAP);
        }
    }

    final int getParent = cpg.addInterfaceMethodref(DOM_INTF,
                                                    GET_PARENT,
                                                    GET_PARENT_SIG);
    il.append(new INVOKEINTERFACE(getParent, 2));

    final SyntaxTreeNode p = getParent();
    if (p == null || p instanceof Instruction ||
        p instanceof TopLevelElement)
    {
        _left.translate(classGen, methodGen);
    }
    else {
        il.append(DUP);
        InstructionHandle storeInst = il.append(storeLocal);

        if (local.getStart() == null) {
            local.setStart(storeInst);
        }

        _left.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }

    methodGen.removeLocalVariable(local);

    /*
     * If _right is an ancestor pattern, backpatch _left false
     * list to the loop that searches for more ancestors.
     */
    if (_right instanceof AncestorPattern) {
        final AncestorPattern ancestor = (AncestorPattern) _right;
        _left.backPatchFalseList(ancestor.getLoopHandle());    // clears list
    }

    _trueList.append(_right._trueList.append(_left._trueList));
    _falseList.append(_right._falseList.append(_left._falseList));
}
Example 20
Source File: ParentPattern.java    From TencentKona-8 with GNU General Public License v2.0 4 votes vote down vote up 
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    final LocalVariableGen local =
        methodGen.addLocalVariable2("ppt",
                                    Util.getJCRefType(NODE_SIG),
                                    null);

    final com.sun.org.apache.bcel.internal.generic.Instruction loadLocal =
        new ILOAD(local.getIndex());
    final com.sun.org.apache.bcel.internal.generic.Instruction storeLocal =
        new ISTORE(local.getIndex());

    if (_right.isWildcard()) {
        il.append(methodGen.loadDOM());
        il.append(SWAP);
    }
    else if (_right instanceof StepPattern) {
        il.append(DUP);
        local.setStart(il.append(storeLocal));

        _right.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }
    else {
        _right.translate(classGen, methodGen);

        if (_right instanceof AncestorPattern) {
            il.append(methodGen.loadDOM());
            il.append(SWAP);
        }
    }

    final int getParent = cpg.addInterfaceMethodref(DOM_INTF,
                                                    GET_PARENT,
                                                    GET_PARENT_SIG);
    il.append(new INVOKEINTERFACE(getParent, 2));

    final SyntaxTreeNode p = getParent();
    if (p == null || p instanceof Instruction ||
        p instanceof TopLevelElement)
    {
        _left.translate(classGen, methodGen);
    }
    else {
        il.append(DUP);
        InstructionHandle storeInst = il.append(storeLocal);

        if (local.getStart() == null) {
            local.setStart(storeInst);
        }

        _left.translate(classGen, methodGen);

        il.append(methodGen.loadDOM());
        local.setEnd(il.append(loadLocal));
    }

    methodGen.removeLocalVariable(local);

    /*
     * If _right is an ancestor pattern, backpatch _left false
     * list to the loop that searches for more ancestors.
     */
    if (_right instanceof AncestorPattern) {
        final AncestorPattern ancestor = (AncestorPattern) _right;
        _left.backPatchFalseList(ancestor.getLoopHandle());    // clears list
    }

    _trueList.append(_right._trueList.append(_left._trueList));
    _falseList.append(_right._falseList.append(_left._falseList));
}