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20 lines
725 B
JavaScript
20 lines
725 B
JavaScript
'use strict';
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// Call this function in a another function to find out the file from
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// which that function was called from. (Inspects the v8 stack trace)
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//
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// Inspired by http://stackoverflow.com/questions/13227489
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module.exports = function getCallerFile(_position) {
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var oldPrepareStackTrace = Error.prepareStackTrace;
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Error.prepareStackTrace = function(err, stack) { return stack; };
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var stack = new Error().stack;
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Error.prepareStackTrace = oldPrepareStackTrace;
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var position = _position ? _position : 2;
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// stack[0] holds this file
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// stack[1] holds where this function was called
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// stack[2] holds the file we're interested in
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return stack[position] ? stack[position].getFileName() : undefined;
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};
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