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Web Platform and ECMAScript API bindings for Gleam's JavaScript target

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gossamer src gossamer readable_stream byob_reader.gleam
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src/gossamer/readable_stream/byob_reader.gleam 

// TODO: Untested — requires a byte stream (UnderlyingSource with type: "bytes")

// which gossamer doesn't expose yet. Add tests once byte stream support lands.



import gossamer/array_buffer_view.{type ArrayBufferView}

import gossamer/promise.{type Promise}

import gossamer/readable_stream/byob_reader_read_option.{

  type ByobReaderReadOption,

}

import gossamer/readable_stream/read_result.{type ReadResult}



@external(javascript, "./byob_reader.type.ts", "ByobReader$")

pub type ByobReader(a)



@external(javascript, "./byob_reader.ffi.mjs", "closed")

pub fn closed(of reader: ByobReader(a)) -> Promise(Nil)



@external(javascript, "./byob_reader.ffi.mjs", "cancel")

pub fn cancel(reader: ByobReader(a), reason reason: r) -> Promise(Nil)



@external(javascript, "./byob_reader.ffi.mjs", "read")

pub fn read(

  reader: ByobReader(a),

  into view: ArrayBufferView,

  with options: List(ByobReaderReadOption),

) -> Promise(ReadResult(ArrayBufferView))



@external(javascript, "./byob_reader.ffi.mjs", "release_lock")

pub fn release_lock(reader: ByobReader(a)) -> ByobReader(a)