65 lines
1.1 KiB
JavaScript
65 lines
1.1 KiB
JavaScript
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/*!
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* jss
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* Copyright(c) 2011 TJ Holowaychuk <tj@vision-media.ca>
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* MIT Licensed
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*/
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/**
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* Module dependencies.
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*/
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var parse = require('uglify-js').parser.parse;
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/**
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* Library version.
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*/
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exports.version = '0.0.1';
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/**
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* Return stats for the given javascript `str`.
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*
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* @param {String} str
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* @return {Object}
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* @api public
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*/
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exports.stats = function(str){
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var stats = {
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statements: 0
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, assignments: 0
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, functions: 0
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, numbers: 0
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, strings: 0
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, stringBytes: 0
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, loc: str.split('\n').length
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, bytes: Buffer.byteLength(str)
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};
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function visit(node) {
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if (!node) return;
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var name = node[0];
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// array support
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if ('string' != typeof name) {
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for (var i = 0, len = node.length; i < len; ++i) {
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visit(node[i]);
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}
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return;
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}
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// rename "name" to "ident"
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if ('name' == name) name = 'ident';
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// visit the node
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if (!visit[name]) throw new Error('no visitor implemented for "' + name + '"');
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visit[name](node);
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}
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visit['toplevel'] = function(node){
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visit(node[1]);
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};
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return stats;
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}; |