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[rbdr/dotfiles] / atom / packages / ex-mode / node_modules / space-pen / node_modules / grim / node_modules / coffeestack / node_modules / source-map / node_modules / amdefine / intercept.js
1 /*jshint node: true */
2 var inserted,
3 Module = require('module'),
4 fs = require('fs'),
5 existingExtFn = Module._extensions['.js'],
6 amdefineRegExp = /amdefine\.js/;
7
8 inserted = "if (typeof define !== 'function') {var define = require('amdefine')(module)}";
9
10 //From the node/lib/module.js source:
11 function stripBOM(content) {
12 // Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
13 // because the buffer-to-string conversion in `fs.readFileSync()`
14 // translates it to FEFF, the UTF-16 BOM.
15 if (content.charCodeAt(0) === 0xFEFF) {
16 content = content.slice(1);
17 }
18 return content;
19 }
20
21 //Also adapted from the node/lib/module.js source:
22 function intercept(module, filename) {
23 var content = stripBOM(fs.readFileSync(filename, 'utf8'));
24
25 if (!amdefineRegExp.test(module.id)) {
26 content = inserted + content;
27 }
28
29 module._compile(content, filename);
30 }
31
32 intercept._id = 'amdefine/intercept';
33
34 if (!existingExtFn._id || existingExtFn._id !== intercept._id) {
35 Module._extensions['.js'] = intercept;
36 }