operandstack.html

一个用于对.class文件进行插桩的开源工具

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<TD><B>Methods inherited from class java.lang.Object</B></TD>
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<TD><CODE>finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD>
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<A NAME="OperandStack(int)"><!-- --></A><H3>
OperandStack</H3>
<PRE>
public <B>OperandStack</B>(int&nbsp;maxStack)</PRE>
<DL>
<DD>Creates an empty stack with a maximum of maxStack slots.</DL>
<HR>

<A NAME="OperandStack(int, org.apache.bcel.generic.ObjectType)"><!-- --></A><H3>
OperandStack</H3>
<PRE>
public <B>OperandStack</B>(int&nbsp;maxStack,
                    <A HREF="../../../../../org/apache/bcel/generic/ObjectType.html">ObjectType</A>&nbsp;obj)</PRE>
<DL>
<DD>Creates an otherwise empty stack with a maximum of maxStack slots and
 the ObjectType 'obj' at the top.</DL>

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<A NAME="clone()"><!-- --></A><H3>
clone</H3>
<PRE>
protected java.lang.Object <B>clone</B>()</PRE>
<DL>
<DD>Returns a deep copy of this object; that means, the clone operates
 on a new stack. However, the Type objects on the stack are
 shared.<DD><DL>
<DT><B>Overrides:</B><DD><CODE>clone</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="clear()"><!-- --></A><H3>
clear</H3>
<PRE>
public void <B>clear</B>()</PRE>
<DL>
<DD>Clears the stack.</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(java.lang.Object&nbsp;o)</PRE>
<DL>
<DD>Returns true if and only if this OperandStack
 equals another, meaning equal lengths and equal
 objects on the stacks.<DD><DL>
<DT><B>Overrides:</B><DD><CODE>equals</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getClone()"><!-- --></A><H3>
getClone</H3>
<PRE>
public <A HREF="../../../../../org/apache/bcel/verifier/structurals/OperandStack.html">OperandStack</A> <B>getClone</B>()</PRE>
<DL>
<DD>Returns a (typed!) clone of this.<DD><DL>
<DT><B>See Also: </B><DD><A HREF="../../../../../org/apache/bcel/verifier/structurals/OperandStack.html#clone()"><CODE>clone()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="isEmpty()"><!-- --></A><H3>
isEmpty</H3>
<PRE>
public boolean <B>isEmpty</B>()</PRE>
<DL>
<DD>Returns true IFF this OperandStack is empty.</DL>
<HR>

<A NAME="maxStack()"><!-- --></A><H3>
maxStack</H3>
<PRE>
public int <B>maxStack</B>()</PRE>
<DL>
<DD>Returns the number of stack slots this stack can hold.</DL>
<HR>

<A NAME="peek()"><!-- --></A><H3>
peek</H3>
<PRE>
public <A HREF="../../../../../org/apache/bcel/generic/Type.html">Type</A> <B>peek</B>()</PRE>
<DL>
<DD>Returns the element on top of the stack. The element is not popped off the stack!</DL>
<HR>

<A NAME="peek(int)"><!-- --></A><H3>
peek</H3>
<PRE>
public <A HREF="../../../../../org/apache/bcel/generic/Type.html">Type</A> <B>peek</B>(int&nbsp;i)</PRE>
<DL>
<DD>Returns the element that's i elements below the top element; that means,
 iff i==0 the top element is returned. The element is not popped off the stack!</DL>
<HR>

<A NAME="pop()"><!-- --></A><H3>
pop</H3>
<PRE>
public <A HREF="../../../../../org/apache/bcel/generic/Type.html">Type</A> <B>pop</B>()</PRE>
<DL>
<DD>Returns the element on top of the stack. The element is popped off the stack.</DL>
<HR>

<A NAME="pop(int)"><!-- --></A><H3>
pop</H3>
<PRE>
public <A HREF="../../../../../org/apache/bcel/generic/Type.html">Type</A> <B>pop</B>(int&nbsp;i)</PRE>
<DL>
<DD>Pops i elements off the stack. ALWAYS RETURNS "null"!!!</DL>
<HR>

<A NAME="push(org.apache.bcel.generic.Type)"><!-- --></A><H3>
push</H3>
<PRE>
public void <B>push</B>(<A HREF="../../../../../org/apache/bcel/generic/Type.html">Type</A>&nbsp;type)</PRE>
<DL>
<DD>Pushes a Type object onto the stack.</DL>
<HR>

<A NAME="slotsUsed()"><!-- --></A><H3>
slotsUsed</H3>
<PRE>
public int <B>slotsUsed</B>()</PRE>
<DL>
<DD>Returns the number of stack slots used.<DD><DL>
<DT><B>See Also: </B><DD><A HREF="../../../../../org/apache/bcel/verifier/structurals/OperandStack.html#maxStack()"><CODE>maxStack()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Returns a String representation of this OperandStack instance.<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="merge(org.apache.bcel.verifier.structurals.OperandStack)"><!-- --></A><H3>
merge</H3>
<PRE>
public void <B>merge</B>(<A HREF="../../../../../org/apache/bcel/verifier/structurals/OperandStack.html">OperandStack</A>&nbsp;s)</PRE>
<DL>
<DD>Merges another stack state into this instance's stack state.
 See the Java Virtual Machine Specification, Second Edition, page 146: 4.9.2
 for details.</DL>
<HR>

<A NAME="initializeObject(org.apache.bcel.verifier.structurals.UninitializedObjectType)"><!-- --></A><H3>
initializeObject</H3>
<PRE>
public void <B>initializeObject</B>(<A HREF="../../../../../org/apache/bcel/verifier/structurals/UninitializedObjectType.html">UninitializedObjectType</A>&nbsp;u)</PRE>
<DL>
<DD>Replaces all occurences of u in this OperandStack instance
 with an "initialized" ObjectType.</DL>
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