Package Exports
- objj-transpiler
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (objj-transpiler) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
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
How to use
usage: objjc infile [--ecma3|--ecma5] [--strict-semicolons] [--track-comments]
[--include-comments] [--include-comment-line-break] [(-o | --output)
--ecma3 and --ecma5: Indicates the ECMAScript version to parse. Must be either 3 or 5. This influences support for strict mode, the set of reserved words, and support for getters and setter.
--strict-semicolons: The parser demands semicolons between statements.
the parser will not allow
--no-allow-trailing-commas: Don't allow trailing commas in array and object literals.
--track-comments:
--include-comments:
--include-comment-line-break: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.