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jimblandy/functionDisplayName.js

Last active August 29, 2015 14:00
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Firefox chrome JS function to return a function's inferred display name.
Raw
functionDisplayName.js
Cu.import("resource://gre/modules/jsdebugger.jsm");
addDebuggerToGlobal(this);
function functionDisplayName(obj) {
var dbg = new Debugger;
var globalDO = dbg.addDebuggee(new Components.utils.Sandbox(this));
return globalDO.makeDebuggeeValue(obj).unwrap().displayName;
};
var obj = {};
obj.x = function() {};
uneval(functionDisplayName(obj.x));
/*
"obj.x"
*/
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