From 90cbeddc0a7a19259d9408c6d4e7d1caca8e8cb4 Mon Sep 17 00:00:00 2001
From: Torsten Ruger <torsten@villataika.fi>
Date: Wed, 13 Aug 2014 20:05:00 +0300
Subject: [PATCH] premature start on the salama object files, just for reading
 the compiled code

---
 lib/sof/README.md    | 30 +++++++++++++++++++++++++
 lib/sof/all.rb       |  3 +++
 lib/sof/array.rb     |  8 +++++++
 lib/sof/members.rb   | 53 ++++++++++++++++++++++++++++++++++++++++++++
 lib/sof/occurence.rb | 13 +++++++++++
 5 files changed, 107 insertions(+)
 create mode 100644 lib/sof/README.md
 create mode 100644 lib/sof/all.rb
 create mode 100644 lib/sof/array.rb
 create mode 100644 lib/sof/members.rb
 create mode 100644 lib/sof/occurence.rb

diff --git a/lib/sof/README.md b/lib/sof/README.md
new file mode 100644
index 00000000..3971eb78
--- /dev/null
+++ b/lib/sof/README.md
@@ -0,0 +1,30 @@
+### Salama Object File
+
+Ok, so we all heard about object files, it's the things compilers create so we don't have to have huge compiles and
+can link them later.
+
+Much few know what they include, and that is not because they are not very useful, but rather very complicated.
+
+An object machine must off course have it's own object files, because:
+
+- otherwise we'd have to express the object machine in c (nischt gut)
+- we would be forced to read the source every time (slow)
+- we would have no language independant format
+
+And i was going to get there, juust not now. I mean i think it's a great idea to have many languages compile and run 
+on the same object machine. Not neccessarily my idea, but i haven't seen it pulled off. Not that i will.
+
+I just want to be able to read my compiled code!!
+
+And so this is a little start, just some outputter.
+
+#### Direction
+
+The way this is meant to go (planned for 2020+) was a salama core with only a sof parser (as that is soo much simpler).
+
+Then to_ruby for all the ast classes to be able to roundtrip ruby code.
+
+Then go to storing sof in git, rather than ruby.
+
+Then write a python/java parser and respective runtime conversion. Extracting common features. With the respective 
+to_python on the ast's to roundtrip that too. Have to since by now we work on sof's. Etc . ..
diff --git a/lib/sof/all.rb b/lib/sof/all.rb
new file mode 100644
index 00000000..24967615
--- /dev/null
+++ b/lib/sof/all.rb
@@ -0,0 +1,3 @@
+require_relative "members"
+require_relative "array"
+require_relative "occurence"
diff --git a/lib/sof/array.rb b/lib/sof/array.rb
new file mode 100644
index 00000000..1de170f2
--- /dev/null
+++ b/lib/sof/array.rb
@@ -0,0 +1,8 @@
+Array.class_eval do
+  def attributes
+    []
+  end
+  def to_sof
+    ""
+  end
+end
diff --git a/lib/sof/members.rb b/lib/sof/members.rb
new file mode 100644
index 00000000..5ab51cb5
--- /dev/null
+++ b/lib/sof/members.rb
@@ -0,0 +1,53 @@
+module Sof
+  
+  class Members
+    def initialize root
+      @root = root
+      @counter = 1
+      @objects = {}
+      add(root ,0 )
+    end
+
+    def add object , level
+      if( @objects.has_key?(object) )
+        occurence = @objects.get(object)
+        occurence.level = level if occurence.level > level
+      else
+        o = Occurence.new( object , @counter , level )
+        @objects[object] = o
+        c = @counter
+        @counter = @counter + 1
+        object.attributes.each do a
+          val = object.send a
+          add(val , level + 1)
+        end
+      end
+    end
+
+    def write
+      string = ""
+      output string , @root
+    end
+
+    def output string , object
+      occurence = @objects[object]
+      indent = " " * occurence.level
+      string += indent
+      if(object.respond_to? :to_sof)
+        string += object.to_sof + "\n"
+      else
+        string += "!" + object.class.name + "\n"
+        indent += " "
+        object.attributes.each do a
+          val = object.send a
+          output( string , val)
+        end
+      end
+    end
+
+    def self.write object
+      members = Members.new object
+      members.write
+    end
+  end
+end
diff --git a/lib/sof/occurence.rb b/lib/sof/occurence.rb
new file mode 100644
index 00000000..52322762
--- /dev/null
+++ b/lib/sof/occurence.rb
@@ -0,0 +1,13 @@
+module Sof
+
+  class Occurence
+    def initialize object , level , number
+      @number = number
+      @object = object
+      @level = level
+    end
+    attr_reader   :object , :number
+    attr_accessor :level
+  end
+
+end