Initial commit

.rvmrc

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+rvm use 1.9.2@crystal

Gemfile

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+source :rubygems
+
+gem 'ruby-llvm'
+gem 'rltk', '1.0.0', :path => 'vendor/gems'
+gem 'rspec'

Gemfile.lock

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+PATH
+  remote: vendor/gems
+  specs:
+    rltk (1.0.0)
+
+GEM
+  remote: http://rubygems.org/
+  specs:
+    diff-lcs (1.1.2)
+    ffi (1.0.9)
+    rspec (2.6.0)
+      rspec-core (~> 2.6.0)
+      rspec-expectations (~> 2.6.0)
+      rspec-mocks (~> 2.6.0)
+    rspec-core (2.6.4)
+    rspec-expectations (2.6.0)
+      diff-lcs (~> 1.1.2)
+    rspec-mocks (2.6.0)
+    ruby-llvm (2.9.1)
+      ffi (>= 1.0.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  rltk (= 1.0.0)!
+  rspec
+  ruby-llvm

README.markdown

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+Joy
+===
+
+Joy is a programming language that compiles to native code.
+It has a syntax strongly inspired by Ruby:
+  * No need to declare types: everything is inferred.
+  * Classes and Modules can be opened: at compile time everything is mixed together
+  * String interpolation
+  * Regular expression interpolation
+  * Instance variables start with @
+  * Global variables start with $
+  * Constants start with Capital Letters
+  * Functions can be evaluated at compile time as long as they are assigned to a Constant.
+
+Examples:
+
+1. Hello World
+
+    puts "Hello World"
+
+2. Fibbonacci
+
+    def fib n
+      if n <= 2
+        1
+      else
+        fib(n - 1) + fib(n - 2)
+      end
+    end
+
+    Value = fib 6
+    puts Value
+
+    # Compiles to...
+    # puts 8
+
+3. Constants as arguments
+
+    def static N, x
+      if N == 1
+        2 * x
+      else
+        3 * x
+      end
+    end
+
+    puts static(2, 6)
+
+    # Compiles to...
+    def static_2 x
+     3 * x
+    end
+
+    puts static_2(6)

lib/joy.rb

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+require 'rubygems'
+['lexer'].each do |filename|
+  require(File.expand_path("../#{filename}",  __FILE__))
+end
+
+p Lexer.lex('def').map(&:type)

lib/lexer.rb

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+require 'rltk/lexer'
+
+class Lexer < RLTK::Lexer
+  rule(/\s/)
+  rule(/def/) { [:IDENT, :def] }
+  rule(/\w+/) { |id| [:IDENT, id] }
+end

spec/lexer_spec.rb

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+require 'test/unit'
+require(File.expand_path("../../lib/lexer",  __FILE__))
+
+describe Lexer do
+  it "lexes def" do
+    token = Lexer.lex('def').first
+    token.type.should eq(:IDENT)
+    token.value.should eq(:def)
+  end
+end