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Change Log

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

[0.32.1] - 2018-03-17

Fixed

  • Global JavaScript modules not compiling correctly

[0.32.0] - 2018-02-10

Added

  • ElixirScript.Test for testing ElixirScript modules in JavaScript. ElixirScript.Test is for unit testing modules that interact with JavaScript in some way. For modules that are can be used in both Elixir and ElixirScript, ExUnit is still preferred. Tests that use ElixirScript.Test must be placed in a test_elixir_script folder in the root of your project. These tests are run using node.js. The API for ElixirScript.Test is meant to be as close to ExUnit as possible.

Changed

  • ElixirScript now requires Elixir 1.6. This is so that ElixirScript can use the new Mix.Task.Compiler behaviour.

  • mix clean will now correctly clean up ElixirScript output.

  • Compiler will now output a JavaScript file per Elixir module.

  • Modules with a start function must be started directly.

    # Before ElixirScript 0.32.0:
import Elixir from './elixirscript.build.js'
Elixir.start(Elixir.Main, [1, 2, 3])

# ElixirScript 0.32.0 and later:
import Main from './Elixir.Main.js'
Main.start(Symbol.for('normal'), [1, 2, 3])

[0.31.1] - 2017-09-27

Fixed

  • Compiler error when receive is used as variable name

[0.31.0] - 2017-09-24

Added

Fixed

[0.30.0] - 2017-08-15

Added

  • ElixirScript now has a Foreign Function Interface (FFI) for interoperability with JavaScript. For more details, see documentation at ElixirScript.FFI
  • ElixirScript.JS.mutate/3
  • ElixirScript.JS.map_to_object/1
  • root option for specifying the root import path for FFI JavaScript modules. Defaults to "."

Changed

  • Compiler has been completely rewritten. ElixirScript now requires Erlang 20+ and Elixir 1.5+
  • JS module renamed to ElixirScript.JS
  • Default output path is now priv/elixir_script/build

Removed

  • Support for CommonJS and UMD output formats has been removed. Output will be in ES module format
  • The js_modules option has been removed in favor of the new FFI
  • ElixirScript.Watcher has been removed

[0.28.0] - 2017-06-11

Added

  • remove-unused option that will remove all unused modules from output
  • reimplemented structs to avoid creating JavaScript classes

[0.27.0] - 2017-03-17

Added

  • super
  • defoverridable
  • IO.inspect\1, IO.puts\1, IO.puts\2, IO.warn\1
  • Elixir.load for loading generated JavaScript modules in bundled output. Unlike Elixir.start, this will only call __load on the module and return the functions on it
const exports = Elixir.load(Elixir.MyApp);
exports.hello();

Changed

  • -ex alias is now -e
  • A filename can be specified for output
  • To access global JavaScript functions, modules, and properties, use the JS module
JS.length # translates to 'length'
JS.alert() # translates to 'alert()'
JS.String.raw("hi") # translate to String.raw('hi')
JS.console.log("hi") # translates to console.log('hi')

Fixed

  • Make sure mix compiler works in umbrella apps

[0.26.1] - 2017-02-27

Fixed

  • Fixed for translation
  • Updated documentation

[0.26.0] - 2017-02-27

Added

  • Multiple when clauses in guards

  • Kernel.defdelegate/2

  • js_modules configuration option has been added. This is a list of JavaScript modules that will be used.

          js_modules: [
        {React, "react"},
        {ReactDOM, "react-dom"}
      ]

  • js-module flag has been added to the CLI in order to pass js modules.

elixirscript "app/elixirscript" -o dist --js-module React:react --js-module ReactDOM:react-dom

Removed

  • @on_js_load has been removed in favor of having a start/2 function defined. More info below
  • JS.import has been removed in favor of defining JavaScript modules used in configuration

Changed

  • Now bundles all output, including the boostrap code. The exported object has Elixir modules in JavaScript namespaces that are lazily loaded when called.

    To start your application import the bundle according to whichever module format was selected and then call start giving it the module and the initial args

    //ES module example
import Elixir from './Elixir.App';
Elixir.start(Elixir.App, []);

    The start function will look for a start/2 function there. This is analogous to a Application module callback

[0.25.0] - 2017-02-19

Added

  • Updated elixir_script mix compiler to support compiling elixir_script paths in dependencies if dependency has mix compiler defined as well

  • Add Collectable protocol implementations

  • Updated for implementation to use Collectable

  • format option. Can now specify the module format of output. Choices are: _ :es (default) for ES Modules _ :umd for UMD * :common for CommonJS

  • Default input, output and format for elixirscript mix compiler. In a mix project by default the elixirscript compiler will look in lib/elixirscript and input and place output in priv/elixirscript. The default format is :es

Removed

  • receive
  • Process module

Fixed

  • JS module functions not translated properly when imported
  • Update fs dependency to 2.12
  • Incorrect handling of function heads with guards

[0.24.0] - 2017-01-15

Added

  • Support for sigil_r
  • Regex module
  • Better JavaScript formatting

Fixed

  • CLI now allows a comma-separated or space-separated list of paths
  • Struct not properly referenced
  • Tail call optimization

[0.23.3] - 2016-11-18

Added

  • @load_only: lets the compiler know to load in the module, but not to compile it

[0.23.2] - 2016-11-17

Fixed

  • Agent not functioning properly. Now uses internal store instead of making a process and using that to put data in store
  • Protocol incorrectly handling strings
  • defgen and defgenp functions not being recognized by Elixir compiler.

[0.23.1] - 2016-11-16

Fixed

  • Incorrectly sending standard lib when using compile or compile_path by default

[0.23.0] - 2016-11-15

Added

  • with now supports else

  • Implement context option on quote

  • New compiler pipeline

  • @on_js_load. Expects a 0 arity function. This function will be called when the compiled module is loaded in JavaScript

  • JS.import\3. Just like JS.import\2 but expects options to decide if the import should be a default one or a namespace on. Only option allowed is default. Set to true by default

    # translates to "import A from 'a'"
JS.import A, "a"

#translates to "import * as A from 'a'"
JS.import A, "a", default: false

Removed

  • The form of JS.import that accepted a list of atoms as the first arg. Used JS.import\3 with default: false instead to create a namespace import
  • env and root are no longer options for ElixirScript's compile functions and cli
  • Syntax once supported by Elixirscript JQuery.("#element"), is no longer supported

Changed

  • Changed CHANGELOG.md to adhere the format from Keep a Changelog

  • defmacro now supported. No longer have to separate macros from functions in separate files. defmacrop still unsupported

  • To use anything in the JS module, you must require the JS module first

  • Elixirscript files must now contain valid Elixir syntax.

  • Now compiles exjs and ex files within the path can be compiled all the same. Dependencies from hex are still unsupported so these files must not rely on any code outside of the path. What this does mean is that it is now possible to share code between Elixir and Elixirscript as long as the Elixir files functionality fall within what Elixirscript currently supports.

  • defgen, defgenp, yield, yield_to, and object are now in the JS module

  • To access functions in the global JavaScript scope, either use JS.global\0 or use the erlang module call syntax

    #calling alert
JS.global().alert("hi")

#calling alert
:window.alert("hi")

    Calling JavaScript modules in the global scope works without using the above methods

    #calls window.Date.now()
Date.now()

[0.22.0] - 2016-10-16

Added

  • defgen and defgenp for defining public and private generators
  • yield/0, yield/1, and yield_to\1 to Kernel

Changed

  • Updated output folder structure. stdlib code will now go in an elxiir folder under the output paths while generated app code will go into an app folder under the output path
  • All process macros and functions now expect to receive and/or work using generators as entry points. Using functions defined with def or defp will not work correctly with them

Fixed

  • Correctly returning list if list is only item in body

[0.21.0] - 2016-06-28

Added

  • This is the first release with early support for processes in elixirscript. Creating a process only works currently using spawn/1, spawn_link/1, and spawn_monitor/1. Inside of a process, you can use functions such as send and receive, along with some defined in the Process module. From outside of a process, you can send messages to a process, but you cannot receive a message from a process. Eventually all code will run inside processes and this restriction will naturally lift.
  • The Process module has been implemented with the following functions:
    • alive?/1
    • delete/1
    • demonitor/1
    • exit/2
    • flag/2
    • flag/3
    • get/0
    • get_keys/0
    • get_keys/1
    • link/1
    • list/0
    • monitor/1
    • put/2
    • register/2
    • registered/0
    • send/3
    • sleep/1
    • unlink/1
    • unregister/1
    • whereis/1
  • The receive special form has been implemented with the above caveat
  • The following have been implemented on Kernel:
    • spawn/1
    • spawn_link/1
    • spawn_monitor/1
    • send/2
    • make_ref/0

Fixed

  • Scoping on fn and def

[0.20.0] - 2016-05-14

Added

  • ElixirScript.Watcher module and elixirscript.watch mix task
  • logging MatchError exceptions to better show terms that don't match

[0.19.0] - 2016-04-30

Added

  • elixir_script mix compiler

Removed

  • Html, View, and VDom modules have been removed

[0.18.0] - 2016-04-08

Changed

  • Better support for macros. Macros should be defined in .ex or .exs files. ElixirScript code should be in .exjs files

NOTE: The above functionality will cause either compiler errors or no output. Please change extensions of ElixirScript code to .exjs

Deprecated

  • Html, View, and VDom modules will be removed in the next version as they can now be replicated using macros

[0.17.0] - 2016-03-31

Added

  • output as an option for compiler functions. This controls whether output is returned as a list of tuples, send to stdout, or saved to a file path
  • :full_build as an option for compiler functions and --full-build option to CLI. These force the compiler to perform a full build
  • --version option to CLI. Outputs current version of elixirscript
  • --std-lib option to CLI. Takes a path and adds the stdlib to that path

Changed

  • Renamed copy_core_to_destination to copy_stdlib_to_destination
  • Incremental Compilation: ElixirScript will now only build files and modules that have changed since the last build

Removed

  • --core option from CLI and :core compiler option.

[0.16.0] 2016-02-27

Added

  • Bitstring pattern matching

  • Bitstrings in for comprehensions

  • Functions with catch, after, else clauses

  • with special form

  • Pin operator in map keys and function clauses

  • Added Kernel.object/1 function to make it more natural to create a JavaScript object with string keys. Elixirscript, by default turns the following, %{a:"b"} into {[Symbol.for("a")]: "b"} in JavaScript. In order to get string keys, one would have to do %{"a" => "b"} which turns into {a: "b"} in JavaScript. With Kernel.object, you can create string keyed maps conveniently, object(a: "b") which turns into {a: "b"}.

    NOTE: when updating the created by, you still have to use the string form %{ my_map | "a" => "c" }

Removed

  • JS.update(object, property, value) has been removed and replaced with JS.update(object, map). This allows you to update multiple values on a javascript object at once.

Fixed

  • Optional parameters should now work as expected

[0.15.2] - 2016-02-21

Addded

  • Support for variables as map keys

Fixed

  • Protocol implementations for Integer and Float which where not recognized
  • Calling properties on non-objects

[0.15.1] - 2016-02-19

Removed

  • Removed catch as a javascript keyword to filter

Fixed

  • Fixed View module so that an element can have multiple elements within
  • struct implementation so that lists of atoms for fields are compiled correctly
  • head-tail pattern match to allow for more complicated scenarios
  • ModuleCollector to properly alias inner modules
  • Raise translation to properly translate when string messages are given

[0.15.0] - 2016-01-26

Added

  • __ENV__ and __CALLER__ are now supported
  • JS.import/1, JS.typeof/1,JS.instanceof/1, and JS.global/1
  • Support for multi alias/require/imports statements

Changed

  • alias, require, and import now work inside lexical scopes
  • Some of the standard library originally written in JavaScript has been rewritten in Elixir.
  • Generated JavaScript export statements are now default exports
  • When output is sent to standard out, there are now markers to specify where each module begins as well as what the file name would be. For the end of a file, //:ENDFILE is used. For the file name, //<file>:ENDFILENAME is used where <file> is the name of the file
  • compile, compile_path, and compile_quoted opts parameter now expects a map
  • The stdlib compiler option is now core. The stdlib_path compiler options is now core_path

[0.14.1] - 2015-12-07

Removed

  • .DS_Store and LICENSE from output

[0.14.0] - 2015-12-06

Added

  • Can now implement protocols using JavaScript types 
      defimpl MyProtocol, for: HTMLElement
  • virtual-dom JavaScript library
  • ElixirScript.Html module for defining a virtual-dom tree
  • ElixirScript.VDom module for manipulating the virtual-dom tree created using the ElixirScript.Html module
  • Added ElixirScript.View module for handling view state and rendering virtual-dom
  • Added stdlib_path compiler option to specify the es6 path to the standard library. If used, elixir.js will not be exported with the compiled modules

Changed

  • Renamed ex2js to elixirscript. This effects the escript as well as the mix task
  • Structs are now translated into classes
  • Structs and Tuples now match on their types
  • Can now match on JavaScript classes. Works just like matching on structs: 
      def my_func(%HTMLElement{id: "myId"})
  • Moved non-elixir JavaScript code into core es6 module. This will hopefully make it so ElixirScript Standard Library modules can be defined in Elixir soon.

[0.13.0] - 2015-10-26

Added

  • Base module with function: encode64, decode64, and decode64!
  • String module
  • Bitwise module
  • Map module
  • MapSet module
  • Set module
  • Protocol support
  • Added Collectable, Enumerable, Inspect, List.Chars, and String.Chars protocols. The only one currently being used in the Standard Library, however, is String.Chars

[0.12.0] - 2015-09-23

Added

  • Added PostOffice. Only thing that current uses it is Agent

Changed

  • Updated tuple implementation. It's now a class.
  • Replaced pattern matching library with custom one
  • Moved data types to Kernel.SpecialForms
  • else now works for try expressions
  • for now works with into for lists

Removed

  • Removed erlang.js.

[0.11.0] - 2015-09-17

Added

  • Added JS module with new, mutate, import macros
  • Added Keyword module with functions, has_key? and get
  • Added Agent module with functions, start, get, update, and get_and_update

Changed

  • Map keys are now correctly turned into their atom counterparts if atom keys are used
  • import works with all options
  • Mutable.update has been replaced by JS.update
  • transpile, transpile_quoted, and transpile_path are now compile, compile_quoted, and compile_path
  • All Standard libraries are rolled up into one elixir.js file and imported from that
  • Modules no longer export a default object
  • alias now translates to a namespace import unless default option is given

[0.10.0] - 2015-09-02

Added

  • Added env option for ElixirScript.transpile adding macros for compilation
  • Added Logger that translates Logger functions to console

Changed

  • Updated Kernel module to translate some functions to it's JavaScript equivalent

Fixed

  • Fixed case implementation to add this to call

[0.9.0] - 2015-08-30

Added

  • an implementation for quote. Currently ignores :location and :context options
  • an implementation for unquote and unquote_splicing

[0.8.0] - 2015-08-15

Added

  • Can now support catch blocks in try expressions
  • Added receive

Changed

  • Updated pattern matching implementation
  • Wrapped try's in function closure to make sure they return a value;

[0.7.0] - 2015-08-01

Added

  • Can now support rescue and after blocks in try expressions

[0.6.5] - 2015-07-13

Changed

  • Now using the JS code generator from elixir-estree for code generation, improving speed of transpilation
  • the parse functions in the ElixirScript module have been renamed to transpile

[0.6.0] - 2015-07-02

Added

  • Added iterators for Range and BitString
  • Now replacing characters that can't be used in variable and function names in JavaScript with something that it (i.e. match? -> match__qmark__)
  • Implemented Integer module

Changed

  • Made the Tuple, Range and BitString data structures more immutable
  • Atom now translates to an ES6 Symbol
  • List now translates to a frozen JS Array
  • Updated the pattern match binding to use ES6 destructuring for lists and tuples
  • Inner modules are now split out into their own files
    • Standard lib is now exported with file output from cli
    • Standard lib modules are now automatically imported
    • No longer have to define modules via aliases ahead of time. They will be automatically be resolved and made into JavaScript import statements

[0.5.0] - 2015-05-31

Added

  • added from clause to import, alias, and require so that the import path can be overridden

Changed

  • For statements now work with pattern matching tuples
  • Improved function chaining
  • alias now acts like require in that it is translated into an import default statement
  • modules now export a default object with def functions added as properties on it.
  • for function closures, now calling by using .call(this) so that this is available inside of it

[0.4.0] - 2015-05-05

Added

  • bitstrings
  • Better Pattern Matching (Does not support bitstrings yet)
  • Capture Operator
  • Added more functions from the list standard library

Changed

  • Updated variable implementation to match Elixir's (i.e. Reusing the same variable name creates a new one in the background)

Fixed

  • Fixed multi arity implementation

[0.3.0] - 2015-04-23

Added

  • function and case guards
  • function and case pattern matching

Changed

  • Can now use ^ on a variable during assignment

[0.2.1] - 2015-04-14

Changed

  • Renamed project to ElixirScript
  • Reduced escript file size

[0.2.0] - 2015-04-12

Added

  • Pipe operator
  • String interpolation
  • Adding more functions to the Kernel module
  • Fully implemented Tuple module
  • Fully implemented Atom module
  • Fully implemented Range module

Changed

  • Now checking to see if a function is a Kernel function and prepending Kernel to it
  • Now turning Atoms into an Atom javascript object instead of a Symbol
  • Now turning tuples into a Tuple javascript object
  • Can now call properties and zero parameter functions correctly
  • case, cond, and if are now turned into if statements wrapped in function closures
  • Anonymous functions are now turned into anonymous functions in javascript insteed of arrow functions

[0.1.0] - 2015-04-04

Added

  • From standard library implemented:
  • Enum.map
  • Kernel.tl
  • Kernel.hd
  • Logger
  • Implemented language features:
  • All primitives except bitstrings
  • defmodule
  • import, alias, and require
  • case, cond, if
  • def, defp
  • defstruct, defexception
  • raise
  • multiple arity functions
  • basic binary operations
  • for without into