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Revision as of 23:39, 2 March 2011

1,356 bytes removed ,  2 March 2011
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==Debug.Frame==
==Debug.Frame==
A <code>Debug.Frame</code> instance represents a debuggee stack frame. It provides operations for finding the script the frame is executing, the frame that invoked it, and the lexical scope in which the execution is taking place.
A <code>Debug.Frame</code> instance is a weak reference to the frame; once the debuggee destroys the frame (perhaps by returning from the function or leaving an <code>eval</code> call), further operations on the <code>Debug.Frame</code> instance will raise an error.
Debugger code cannot construct <code>Debug.Frame</code> instances itself. SpiderMonkey creates them when calling hook functions, and <code>Debug.Frame.prototype.olderFrame</code> creates them as needed as the stack is traversed.
A <code>Debug.Frame</code> instance has the following properties, which are all read-only:
<dl>
<dt>type
<dd>A string describing what sort of frame this is:
<ul>
<li><code>"global"</code>
<li><code>"call"</code>
<li><code>"eval"</code>
<li><code>"host"</code>
<li><code>"debugger"</code>
</ul>
</dl>
<dt>older
<dt>depth
<dt>generator
<dt>callee
<dt>script
<dt>offset
<dt>scope
<dt>this
<dt>arguments
</dl>
A <code>Debug.Frame</code> instance has the following methods:
<dl>
<dt>olderFrame()
<dd>Return the frame that invoked this frame, or <code>null</code> if this is the oldest debuggee frame.
<dt>frame
generators


==Debug.Script==
==Debug.Script==
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