38 lines
1.1 KiB
Agda
38 lines
1.1 KiB
Agda
module Node
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import Prelude
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pfunc fs : JSObject := `require('fs')`
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pfunc getArgs : List String := `arrayToList(String, process.argv.slice(1))`
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pfunc readFile uses (fs MkIORes Left Right) : (fn : String) -> IO (Either String String) := `(fn) => (w) => {
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let result
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try {
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let content = fs.readFileSync(fn, 'utf8')
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result = Right(undefined, undefined, content)
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} catch (e) {
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let err = ""+e
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result = Left(undefined, undefined, e)
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}
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return MkIORes(undefined, result, w)
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}`
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-- I wonder if I should automatically `uses` the constructors in the types
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pfunc writeFile uses (fs MkIORes MkUnit) : String → String → IO (Either String Unit) := `(fn, content) => (w) => {
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let result
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try {
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fs.writeFileSync(fn, content, 'utf8')
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result = Right(undefined, undefined, MkUnit)
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} catch (e) {
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let err = ""+e
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result = Left(undefined, undefined, e)
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}
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return MkIORes(undefined, result, w)
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}`
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-- maybe System.exit or something, like the original putStrLn msg >> exitFailure
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pfunc exitFailure : ∀ a. String → a := `(_, msg) => {
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console.log(msg);
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process.exit(1);
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}`
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