History

Torsten Ruger f4ce6d6253 starting to redo message_setup apart from previous commits bug, it also needs to deal with dynamic/static correctly and while at it will do the getting from space		2018-04-05 12:24:49 +03:00
..
statements	starting to redo message_setup	2018-04-05 12:24:49 +03:00
README.md	polish docs	2018-03-11 16:11:15 +05:30
ruby_compiler.rb	introducing expressions and constants	2018-03-15 11:24:14 +05:30
statement.rb	method tests working again	2018-03-16 10:32:11 +05:30
vool_compiler.rb	get an elf written	2018-03-29 20:37:25 +03:00

README.md

VOOL

Virtual Object Oriented Language

in other words, ruby without the fluff.

Possibly later other languages can compile to this level and use rx-file as code definition.

Syntax tree

Vool is the layer of concrete syntax tree. The Parser gem is used to parse ruby. It creates an abstract syntax tree which is then transformed.

The next layer down is the Mom, Minimal object Machine, which uses an instruction tree. That is on the way down we create instructions, but stays in tree format. Only the next step down to the Risc layer moves to an instruction stream.

The nodes of the syntax tree are all the things one would expect from a language, if statements and the like. There is no context yet, and actual objects, representing classes and methods, will be created on the way down.

Fluff

Ruby has lots of duplication to help programmers to write less. An obvious example is the existence of until, which really means if not. Other examples, some more impactful are:

No implicit blocks, those get passed as normal arguments (the last)
No splats
no case
no elseif (no unless, no ternary operator)
no global variables.