mrpiglr
190b6b2eab
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22 lines
No EOL
1.1 KiB
JavaScript
22 lines
No EOL
1.1 KiB
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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if (position === void 0) { position = 2; }
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if (position >= Error.stackTraceLimit) {
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throw new TypeError('getCallerFile(position) requires position be less then Error.stackTraceLimit but position was: `' + position + '` and Error.stackTraceLimit was: `' + Error.stackTraceLimit + '`');
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}
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var oldPrepareStackTrace = Error.prepareStackTrace;
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Error.prepareStackTrace = function (_, stack) { return stack; };
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var stack = new Error().stack;
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Error.prepareStackTrace = oldPrepareStackTrace;
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if (stack !== null && typeof stack === 'object') {
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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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};
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//# sourceMappingURL=index.js.map
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