47 lines
1.1 KiB
JavaScript
Executable File
47 lines
1.1 KiB
JavaScript
Executable File
var objectAssign = require('object-assign');
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var memoize = require('memoizee');
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function _resolveOutput(func, bindThis) {
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var wrapped = function() {
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var i = arguments.length;
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var args = [];
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while (i--) args[i] = arguments[i];
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// lazy function eval to keep output memory pressure down, if not used
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if (typeof args[0] === 'function') {
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args[0] = args[0]();
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}
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return func.apply(bindThis, args);
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};
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objectAssign(wrapped, func);
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return wrapped;
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}
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function wrapEval(_debug) {
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var debugOrig = _debug;
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function debug(namespace) {
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function noop() {}
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var instance = debugOrig(namespace);
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/*
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If we're not enabled then don't attempt to log anything.
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Therefore when a debug namespace wraps its debug in a
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closure then it never allocates anything but the function itself
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*/
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if (!instance.enabled) {
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objectAssign(noop, instance);
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return noop;
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}
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return _resolveOutput(instance);
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}
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var debugMemoized = memoize(debug);
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objectAssign(debugMemoized, debugOrig);
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return debugMemoized;
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}
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module.exports = wrapEval;
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