| 'use strict' |
| |
| var fs = require('fs') |
| var PassThrough = require('stream').PassThrough |
| var Transform = require('stream').Transform |
| |
| if (typeof Transform === 'undefined') { |
| throw new Error('UglifyJS only supports browserify when using node >= 0.10.x') |
| } |
| |
| var cache = {} |
| module.exports = transform |
| function transform(file) { |
| if (!/tools\/node\.js$/.test(file.replace(/\\/g,'/'))) return new PassThrough(); |
| if (cache[file]) return makeStream(cache[file]) |
| var uglify = require(file) |
| var src = 'var sys = require("util");\nvar MOZ_SourceMap = require("source-map");\nvar UglifyJS = exports;\n' + uglify.FILES.map(function (path) { return fs.readFileSync(path, 'utf8') }).join('\n') |
| |
| var ast = uglify.parse(src) |
| ast.figure_out_scope() |
| |
| var variables = ast.variables |
| .map(function (node, name) { |
| return name |
| }) |
| |
| src += '\n\n' + variables.map(function (v) { return 'exports.' + v + ' = ' + v + ';' }).join('\n') + '\n\n' |
| |
| src += 'exports.AST_Node.warn_function = function (txt) { if (typeof console != "undefined" && typeof console.warn === "function") console.warn(txt) }\n\n' |
| |
| src += 'exports.minify = ' + uglify.minify.toString() + ';\n\n' |
| src += 'exports.describe_ast = ' + uglify.describe_ast.toString() + ';' |
| |
| // TODO: remove once https://github.com/substack/node-browserify/issues/631 is resolved |
| src = src.replace(/"for"/g, '"fo" + "r"') |
| |
| cache[file] = src |
| return makeStream(src); |
| } |
| |
| function makeStream(src) { |
| var res = new Transform(); |
| res._transform = function (chunk, encoding, callback) { callback() } |
| res._flush = function (callback) { |
| res.push(src) |
| callback() |
| } |
| return res; |
| } |