38 lines
		
	
	
		
			641 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			38 lines
		
	
	
		
			641 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
'use strict';
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const callsites = require('callsites');
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module.exports = filepath => {
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	const stacks = callsites();
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	if (!filepath) {
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		return stacks[2].getFileName();
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	}
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	let seenVal = false;
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	// Skip the first stack as it's this function
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	stacks.shift();
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	for (const stack of stacks) {
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		const parentFilepath = stack.getFileName();
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		if (typeof parentFilepath !== 'string') {
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			continue;
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		}
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		if (parentFilepath === filepath) {
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			seenVal = true;
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			continue;
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		}
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		// Skip native modules
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		if (parentFilepath === 'module.js') {
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			continue;
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		}
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		if (seenVal && parentFilepath !== filepath) {
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			return parentFilepath;
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		}
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	}
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};
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