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package org.netbeans.lib.profiler.heap;

 * @author Tomas Hurka
00051 class StackFrame extends HprofObject {
    static final int NO_LINE_INFO = 0;
    static final int UNKNOWN_LOCATION = -1;
    static final int COMPILED_METHOD = -2;
    static final int NATIVE_METHOD = -3;
    //~ Instance fields ----------------------------------------------------------------------------------------------------------
    private final StackFrameSegment stackFrameSegment;
    //~ Constructors -------------------------------------------------------------------------------------------------------------
    StackFrame(StackFrameSegment segment, long offset) {
        stackFrameSegment = segment;
        assert getHprofBuffer().get(offset) == HprofHeap.STACK_FRAME;
    //~ Methods ------------------------------------------------------------------------------------------------------------------
    long getStackFrameID() {
        return getHprofBuffer().getID(fileOffset + stackFrameSegment.stackFrameIDOffset);
    String getMethodName() {
        return getStringByOffset(stackFrameSegment.methodIDOffset);
    String getMethodSignature() {
        return getStringByOffset(stackFrameSegment.methodSignatureIDOffset);
    String getSourceFile() {
        return getStringByOffset(stackFrameSegment.sourceIDOffset);
    String getClassName() {
        int classSerial = getHprofBuffer().getInt(fileOffset + stackFrameSegment.classSerialNumberOffset);
        LoadClass loadClass = stackFrameSegment.hprofHeap.getLoadClassSegment().getClassBySerialNumber(classSerial);
        return loadClass.getName();
    int getLineNumber() {
        return getHprofBuffer().getInt(fileOffset + stackFrameSegment.lineNumberOffset);
    private HprofByteBuffer getHprofBuffer() {
        return stackFrameSegment.hprofHeap.dumpBuffer;
    private String getStringByOffset(long offset) {
        long stringID = getHprofBuffer().getID(fileOffset + offset);
        return stackFrameSegment.hprofHeap.getStringSegment().getStringByID(stringID);

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