The Haxe Programming Language was designed to be simple and powerful. Its toolkit provides an incredibly fast cross-compiler (JS, PHP, C++, Java, C#, Python…). In this lightning talk, Francis will introduce the grammar, and will list the features that he likes the most. As you can imagine, the goal of this presentation is not to showcase a non-exhaustive list of features, and certainly not to teach haxe language. This will be more a quick and deep introduction about this open-source platform, to share with everyone love and power, and maybe, who knows... This will make you want to get started.

1. haxe language
my ten favorite
features in 30 mins

2. haxe
❤ story ?

3. what is haxe?
● free and open source toolkit

4. what is haxe?
● free and open source toolkit
● statically typed programming language

5. what is haxe?
● free and open source toolkit
● statically typed programming language
● cross compiler for 10 targets (C++, JS, PHP, Java, Python, Lua…)

6. what is haxe?
● free and open source toolkit
● statically typed programming language
● cross compiler for 10 targets (C++, JS, PHP, Java, Python, Lua…)
● cross-platform standard library

7. what is haxe?
● free and open source toolkit
● statically typed programming language
● cross compiler for 10 targets (C++, JS, PHP, Java, Python, Lua…)
● cross-platform standard library
● allows access to each native platform APIs/libraries

8. haxe
hello world
http://try.haxe.org/#05485

10. conditional compiling
works in pair with compiler arguments

11. conditional compiling
works in pair with compiler arguments

12. static analyser
code optimization
● unused variables
● unreachable code
● and more...

13. type inference
@compile-time
automatic deduction of the data type
of an expression

14. type inference

15. type inference
less verbosity
http://try.haxe.org/#42127

16. type inference
how does it work?

17. type inference
works with composite types

18. static extension
augmenting types

19. static extension
augmenting types

20. array comprehension
initialize arrays with ease

21. abstract
modify/augment concrete type behaviors

22. abstract
example
http://try.haxe.org/#859e3

23. abstract
enums abstract
http://try.haxe.org/#0d1A7

24. abstract
operators overloading

25. abstract
operators overloading

26. abstract
operators overloading

27. abstract
operators overloading

28. abstract
operators overloading

29. abstract
implicit casting

30. abstract
implicit casting

31. abstract
implicit casting

32. abstract
implicit casting

33. abstract
implicit casting

34. inlining
Allows function bodies
to be directly inserted
instead of calling them

35. inlining
code optimization
http://try.haxe.org/#B150C

36. metadata
@nnotations at runtime and compile-time

37. metadata
annotations @runtime and @compile-time
● class declaration

38. metadata
annotations @runtime and @compile-time
● class declaration
● any class field

39. metadata
annotations @runtime and @compile-time
● class declaration
● any class field
● enum declaration

40. metadata
annotations @runtime and @compile-time
● class declaration
● any class field
● enum declaration
● enum constructors

41. metadata
allowed values
● constants

42. metadata
allowed values
● constants
● array declarations

43. metadata
allowed values
● constants
● array declarations
● object declarations

44. metadata
example on class fields

45. metadata
example on class fields

46. metadata
constant identifier

47. pattern matching

48. pattern matching
switch expression
Process of branching depending
on a value matching

49. pattern matching
| operator

50. pattern matching
match against fields

51. pattern matching
match against values

52. pattern matching
with guards

53. pattern matching
with extractors
Allows to check if transformations
match values

54. pattern matching
with extractors

55. pattern matching
with extractors

56. macros

57. macros
black magic @compile-time

58. macros
black magic @compile-time
● Initialization macro

59. macros
black magic @compile-time
● Initialization macro
● Build macro

60. macros
black magic @compile-time
● Initialization macro
● Build macro
● Expression macro

61. macros
expression example

62. macros
build example

63. macros
simple build example

64. macros
annotation/reflection parser example
hexMachina annotation reader

65. real macro use case
DSL compilation

66. DSL PARSING/ASSEMBLING FLOW
Xml Parser
parses

67. DSL PARSING/ASSEMBLING FLOW
Xml Parser Assembler
parses translates

68. DSL PARSING/ASSEMBLING FLOW
Xml Parser Assembler
Context
Factory
parses translates
Runtime @pplication
builds

69. DSL PARSING/COMPILING FLOW
Xml Parser Assembler
CompileTime
Factory
parses translates
Generated Code
generates

70. After compilation
JavaScript is generated

71. DSL CHECKING @compile time
type not found

72. and now...

73. best feature ever

74. best feature ever
.

75. best feature ever
..

76. best feature ever
...

77. best feature ever
guess what

78. best feature ever
❤

79. haxe community
● haxelang - google group
● twitter - #haxe
● stack overflow
● HaxeFoundation - github
● haxe.io

80. questions ?