objj-compiler

JavaScript (ECMAScript) and Objective-J compiler with preprocessor

npm install objj-compiler
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ObjJAcornCompiler

A tiny, fast JavaScript and/or Objective-J compiler with built in preprocessor. Written in JavaScript.

It uses a parser extended from the Acorn JavaScript parser by Marijn Haverbeke.

Format generated code

The generated code can be formatted by providing a format description file with the '--formatDescription' option There are some example files in the format folder.

It can also include comments with the '--includeComments' option.

Beautifier

Objective-J is a superset of Javascript. If it compiles a pure Javascript file it will generate the same code back again. This allows the compiler to be used as a beautifier for Javascript.

Preprocessor

The parser has a built in C like preprocessor.

Example:

#define MAX(x, y) (x > y ? x : y)
var m1 = MAX(a, b);
var m2 = MAX(14, 20);

Will be compiled to:

var m1 = a > b ? a : b;
var m2 = 14 > 20 ? 14 : 20;

For more info see http://www.cappuccino-project.org/blog/2013/05/the-new-objective-j-2-0-compiler.html

Objective-J limitations: It can't compile Objective-J code that depends on other Objective-J files. The Objective-J load and runtime is needed for this. But it will work as long as you declare any superclass in the same file. This will be fixed when the Objective-J load and runtime will be a node module

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