| 1 | function wrap (ctx) {
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| 2 | var map = Array.prototype.map
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| 3 |
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| 4 | ctx.usedMap = false
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| 5 |
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| 6 | Array.prototype.map = function () {
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| 7 |
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| 8 | // $captureStack is a utility to capture a stacktrace array
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| 9 | var stack = ctx.$captureStack(Array.prototype.map)
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| 10 |
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| 11 | // inspect the first callsite of the stacktrace and see if the
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| 12 | // filename matches the mainProgram we're running, if so, then
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| 13 | // the user has used Array#map!
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| 14 | // the substring() is necessary as the user doesn't have to provide
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| 15 | // a .js extension to make it work
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| 16 |
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| 17 | if (stack[0].getFileName().substring(0, ctx.mainProgram.length) == ctx.mainProgram)
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| 18 | ctx.usedMap = true
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| 19 |
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| 20 | // call the real Array#map
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| 21 |
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| 22 | return map.apply(this, arguments)
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| 23 | }
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| 24 | }
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| 25 |
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| 26 |
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| 27 | module.exports = wrap |
| \ | No newline at end of file |