PDI DEVCON1 - BooJs code examples

async-await.boo

import Async

[async] def foo():
    print 'start'
    try:
        for i in range(3):
            print i

        for delay in (1000ms, 5s):
            print "Waiting $delay..."
            await delay = sleep(delay)
            print "Waited for $(delay/1000)"
        
    except:
        print 'Error'

    print 'end'

foo()

async-await.js

Boo.define('', ['exports', 'Boo', 'Async'], function (exports, Boo, NS0) {
  function foo () {
    var __e = null;
    var delay = null;
    var __final = null;
    var __catch = null;
    var __state = 0;
    var $for$2 = null;
    var i = 0;
    return NS0.async(function () {
      __catch = {};
      __final = [];
      return Boo.generator(function (__value, __error) {
        statemachine: while (true) {
          try {
            if (__error) {
              throw __error;
            }

            switch (__state) {
            case 0:
              if (__value !== Boo.UNDEF || __error !== Boo.UNDEF) {
                throw TypeError('Generator not started yet, unable to process sent value/error');
              }

              Boo.print(['start']);
            case 1:
              __catch[7] = __catch[6] = __catch[5] = __catch[4] = __catch[3] = __catch[2] = __catch[1] = 8;
              for (i = 0; i < 3; i++) {
                Boo.print([i]);
              }
              $for$2 = Boo.generator([1000, 5000]);
            case 2:
              __catch[5] = __catch[4] = __catch[3] = __catch[2] = 6;
              __final.push(function () {
                $for$2.close();
              });

            case 3:
              if (!($for$2 && (delay = $for$2.next(), true))) {
                __state = 4;
                continue statemachine;
              }

              Boo.print([['Waiting ', delay, '...'].join('')]);
              __state = 5;
              return NS0.sleep(delay);
            case 4:
              __final.pop()();
              __state = 7;
              continue statemachine;
            case 5:
              delay = __value;
              Boo.print(['Waited for ' + parseInt(delay / 1000)]);
              __state = 3;
              continue statemachine;
            case 6:
            case 7:
              __state = 9;
              continue statemachine;
            case 8:
              Boo.print(['Error']);
            case 9:
              Boo.print(['end']);
            }
            __state = -1;
            throw Boo.STOP;
          } catch (__e) {
            if (__e = __e) {
              if (true) {
                if (__state in __catch) {
                  __error = null;
                  __state = __catch[__state];
                  continue statemachine;
                }

                __state = -1;
                while (__final.length) {
                  __final.pop()();
                }
                throw __e;
              }
            }
          }
          break ;
        }
      });
    });
  }

  foo();
});
//@ booAssembly = 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
//@ sourceMappingURL = async-await.js.map

dsl.boo

def on_ready(callback as callable):
	callback(10)

def timeout(milliseconds as int, callback as callable):
	`setTimeout(callback, milliseconds)`

on_ready() do:
	print 'Ready!'

on_ready def(x):
	print 'Ready!'

on_ready({ x | print 'Ready!' })

on_ready:
	print 'Ready!'

timeout 10s, { print 'Timeout!' }

timeout(5s) do:
	print 'Timeout!'

timeout 1h + 30m:
	print 'Timeout!'

dsl.js

Boo.define('', ['exports', 'Boo'], function (exports, Boo) {
  function on_ready (callback) {
    callback(10);
  }

  function timeout (milliseconds, callback) {
    setTimeout(callback, milliseconds);
  }

  on_ready(function () {
    Boo.print(['Ready!']);
  });

  on_ready(function (x) {
    Boo.print(['Ready!']);
  });

  on_ready(function (x) {
    Boo.print(['Ready!']);
  });

  on_ready(function () {
    Boo.print(['Ready!']);
  });

  timeout(10000, function () {
    Boo.print(['Timeout!']);
  });

  timeout(5000, function () {
    Boo.print(['Timeout!']);
  });

  timeout(5400000, function () {
    Boo.print(['Timeout!']);
  });
});
//@ booAssembly = 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

pattern-matching.boo

def m(data):
    match data:
        case a=string():
            print '1', a
        case array(a=string(), b=int(), *_):
            print '2', a, b
        case Hash(foo: a=string()):
            print '3', a
        case Hash(foo: c) and c is not null:
            print '4', c
        case a = Hash():
            print '5'
        otherwise:
            print 'other'


m('foo')
m(('foo',2,3))
m((1,2,3))
m(['foo',2,'baz'])
m({'foo': 'FOO', 'bar': 'BAR'})
m(Hash(foo: 100))
m({'bar': 'bar'})

pattern-matching.js

Boo.define('', ['exports', 'Boo'], function (exports, Boo) {
  function m (data) {
    var c = null;
    var $match$4 = null;
    var $match$3 = null;
    var b = 0;
    var $match$2 = null;
    var a = '';
    var $match$1 = null;
    $match$1 = data;
    if (Boo.isa($match$1, 'string') && (a = Boo.cast($match$1, 'string'), true)) {
      Boo.print(['1', a]);
    } else if (($match$2 = Boo.trycast($match$1, Array)) && 2 <= Boo.len($match$2) && Boo.isa($match$2[0], 'string') && (a = Boo.cast($match$2[0], 'string'), true) && Boo.isa($match$2[1], 'int') && (b = Boo.cast($match$2[1], 'int'), true)) {
      Boo.print(['2', a, b]);
    } else if (Boo.isa($match$1, Boo.Hash) && ($match$3 = Boo.cast($match$1, Boo.Hash), true) && Boo.isa($match$3['foo'], 'string') && (a = Boo.cast($match$3['foo'], 'string'), true)) {
      Boo.print(['3', a]);
    } else if (Boo.isa($match$1, Boo.Hash) && ($match$4 = Boo.cast($match$1, Boo.Hash), true) && (c = $match$4['foo'], true) && !Boo.isNull(c)) {
      Boo.print(['4', c]);
    } else if (Boo.isa($match$1, Boo.Hash) && (a = Boo.cast($match$1, Boo.Hash), true)) {
      Boo.print(['5']);
    } else {
      Boo.print(['other']);
    }
  }

  var $5 = null;
  m('foo');
  m(['foo', 2, 3]);
  m([1, 2, 3]);
  m(['foo', 2, 'baz']);
  m({
    'foo': 'FOO', 
    'bar': 'BAR'
  });

  m(($5 = Boo.Hash(), $5['foo'] = 100, $5));
  m({
    'bar': 'bar'
  });
});

//@ sourceMappingURL=pattern-matching.js.map

timespan.boo

[Extension] def op_Addition(date as Date, ms as int) as Date:
    return Date(date.getTime() + ms)

[Extension] def op_Subtraction(date as Date, ms as int) as Date:
    return Date(date.getTime() - ms)


with date = Date(2000, 0, 1):
	.setUTCFullYear(2000, 0, 1)
	.setUTCHours(0, 0, 0, 0)

date_mod1 = date + 3h
date_mod2 = date - 3.5d

print 1h
print 1h + 30m + 30s
print date.toISOString()
print date_mod1.toISOString()
print date_mod2.toISOString()

timespan.js

Boo.define('', ['exports', 'Boo'], function (exports, Boo) {
  function op_Addition (date, ms) {
    return new Date(date.getTime() + ms);
  }

  function op_Subtraction (date, ms) {
    return new Date(date.getTime() - ms);
  }

  var date_mod2 = null;
  var date_mod1 = null;
  var date = null;
  date = new Date(2000, 0, 1);
  date.setUTCFullYear(2000, 0, 1);
  date.setUTCHours(0, 0, 0, 0);
  date_mod1 = op_Addition(date, 10800000);
  date_mod2 = op_Subtraction(date, 302400000);
  Boo.print([3600000]);
  Boo.print([5430000]);
  Boo.print([date.toISOString()]);
  Boo.print([date_mod1.toISOString()]);
  Boo.print([date_mod2.toISOString()]);
});
//@ booAssembly = 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
//@ sourceMappingURL=timespan.js.map

timespan.js.map

{
  "version": 3,
  "file": "timespan.js",
  "sources": ["timespan.boo"],
  "names": ["op_Addition","date","ms","Date","getTime","op_Subtraction","setUTCFullYear","setUTCHours","date_mod1","date_mod2","Boo","print","toISOString"],
  "mappings": "BBBB,4DBBgB;UBBBB,cBBYC,KBBcC,MBCtC;UBBW,IBBJC,MBBoB,BBBH,BBBP,BBBLF,KBBKG,WBBYF;GBEjB;;UBBBG,iBBBeJ,KBBcC,MBCzC;UBBW,IBBJC,MBBoB,BBBH,BBBP,BBBLF,KBBKG,WBBYF;GBQjC;;iBBBB,MBDB;iBBBB,MBJK;YBBB,MBBL,BBBB,BBBKD;QBBW,IBBJE,MBBK,KBBM,GBBG,IBCP,BBBB,BBBd,BBDBF;OBCBK,eBBe,KBBM,GBBG,IBCb,BBBB,BBBX,BBFBL;OBEBM,YBBY,EBBG,GBBG,GBBG,IBEhB,BBBB,BBBVC;aBBiB,BBBBR,aBBLC,KBBK,WBCP,BBBB,BBBVQ;aBBiB,BBBBJ,gBBBLJ,KBBK,YBEjB,BBBB,BBBB,BBBBS;MBBBC,MBBB,CBBB,UBCB,BBBB,BBBB,BBBBD;MBBBC,MBBB,CBBe,UBCf,BBBB,BBBB,BBBBD;MBBBC,MBBB,CBBsB,BBBX,BBBLV,KBBKW,gBBCX,BBBB,BBBB,BBBBF;MBBBC,MBBB,CBB2B,BBBX,BBBVH,UBBUI,gBBChB,BBBB,BBBB,BBBBF;MBBBC,MBBB,CBB2B,BBBX,BBBVF,UBBUG"
}