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.
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.
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.
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
usage: objjc infile [--ecma3|--ecma5] [--strict-semicolons] [--track-comments] [--include-comments] [--include-comment-line-break] [(-o | --output) [--formatter ] [--indent-tab] [--indent-width ] [--indent-string ] [--track-spaces] [--track-locations] [--no-objj] [--no-preprocess] [--old-safari-bug] [--no-debug-symbols] [--no-type-signatures] [--generate-objj] [--source-map] [--ast] [--no-code] [-Dmacro[([p1, p2, ...])][=definition]] [--silent] [--help]
--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.