globals.fls

_g: {
    use_class_ext: false,
    use_export: false,
    use_list_slice: false,
    use_pipeline: false,
    use_next_tick: false,
    built_in_names: [
        'console', 'eval', 'setTimeout', 'setInterval', 'clearTimeout', 'parseInt', 'parseFloat',
        'isFinite', 'isNaN', 'Number', 'Array', 'Object', 'Function', 'JSON', 'RegExp', 'Math',
        'String', 'Date', 'NaN', 'undefined', 'Infinity', 'null', 'escape', 'unescape', 'encodeURI',
        'decodeURI', 'encodeURIComponent', 'decodeURIComponent', 'Error', 'EvalError', 'RangeError',
        'ReferenceError', 'SyntaxError', 'TypeError', 'URIError',
    ],
    opt_externs: [],
    opt_input: null,
    opt_output: null,
    opt_export_point: null,
    opt_debug_level: null,
}

export func useClassExt()
    _g.use_class_ext: true

export func useExport()
    _g.use_export: true

export func useListSlice()
    _g.use_list_slice: true

export func usePipeline()
    _g.use_pipeline: true

export func useNextTick()
    _g.use_next_tick: true

export func addExterns(e)
    e |: _g.opt_externs.push($)

export func setInput(i)
    if _g.opt_input != null
        throw Error('`input file` option already set')
    _g.opt_input: i

export func setOutput(o)
    if _g.opt_output != null
        throw Error('`output file` option already set')
    _g.opt_output: o

export func setExportPoint(p)
    if _g.opt_export_point != null
        throw Error('`export point` option already set')
    _g.opt_export_point: p

export func setDebugLevel(d)
    if _g.opt_debug_level != null
        throw Error('`debug` option already set')
    _g.opt_debug_level: d

export func debugLevel()
    return 0 if _g.opt_debug_level = null else _g.opt_debug_level

export func g()
    return _g