| 1 | var la = require('lazy-ass')
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| 2 | var is = require('check-more-types')
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| 3 | var read = require('fs').readFileSync
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| 4 |
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| 5 | function usesPromises (filename) {
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| 6 | la(is.unemptyString(filename), 'expected filename')
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| 7 | var source = read(filename, 'utf-8')
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| 8 | return source.indexOf('Promise') !== -1
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| 9 | }
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| 10 |
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| 11 | module.exports = {
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| 12 | usesPromises: usesPromises
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| 13 | }
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