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Debugger: Difference between revisions
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→Function Properties of the Debugger.Object prototype
(→Debugger Handler Functions: finally blocks don't always complete normally) |
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SpiderMonkey only calls this method on assignments to data properties that will succeed; assignments to un-writable data properties fail without notifying the debugger. | SpiderMonkey only calls this method on assignments to data properties that will succeed; assignments to un-writable data properties fail without notifying the debugger. | ||
<dt>extensionsPrevented(<i>frame</i>) | <dt>extensionsPrevented(<i>frame</i>) | ||
The referent has been made non-extensible, as if by a call to <code>Object.preventExtensions</code>. | <dd>The referent has been made non-extensible, as if by a call to <code>Object.preventExtensions</code>. | ||
</dl> | </dl> | ||
For all watchpoint handler methods: | For all watchpoint handler methods: | ||
<ul> | <ul> | ||
<li>Handler calls receive handler object itself as the <code>this</code> value. | <li>Handler calls receive the handler object itself as the <code>this</code> value. | ||
<li>The <i>frame</i> argument is the current stack frame, whose code is about to perform the operation on the object being reported. | <li>The <i>frame</i> argument is the current stack frame, whose code is about to perform the operation on the object being reported. | ||
<li>If the method returns <code>undefined</code>, then SpiderMonkey makes the announced change to the object, and continues execution normally. If the method returns an object: | <li>If the method returns <code>undefined</code>, then SpiderMonkey makes the announced change to the object, and continues execution normally. If the method returns an object: | ||