moar examples

pgbovine · pgbovine · commit 866c3bbaef73 · 2015-07-16T01:51:08.000-07:00
diff --git a/v3/js/opt-frontend.js b/v3/js/opt-frontend.js
@@ -571,6 +571,8 @@ var RUBY_EXAMPLES = {
   rubyProcLink: 'ruby-example-code/proc-basic.rb',
   rubyProcScopingLink: 'ruby-example-code/proc-scoping.rb',
   rubySymbolsLink: 'ruby-example-code/symbols.rb',
+  rubyPrivateProtectedLink: 'ruby-example-code/class-private-protected.rb',
+  rubyInstClassVarsComplexLink: 'ruby-example-code/inst-class-vars-complex.rb',
   rubyToplevelLink: 'ruby-example-code/toplevel-inst-class-vars.rb',
 };
 
diff --git a/v3/ruby-example-code/class-private-protected.rb b/v3/ruby-example-code/class-private-protected.rb
@@ -0,0 +1,30 @@
+class MyClass
+  def foo; end # instance method
+  def self.foo; end # class method
+
+  protected
+
+  def bar; end
+  def self.bar; end # NOP!
+
+  # variables shouldn't be affected
+  @@classVarX = 111
+  @instVarX = 222
+  
+  private
+
+  @@classVarY = 333
+  @instVarY = 444
+  
+  def baz; end
+  def self.baz; end # NOP!
+
+  # dynamically change visibility
+  public :baz
+  private :bar
+  private :foo
+
+  private_class_method :foo
+  private_class_method :bar
+  private_class_method :baz
+end
diff --git a/v3/ruby-example-code/inst-class-vars-complex.rb b/v3/ruby-example-code/inst-class-vars-complex.rb
@@ -0,0 +1,36 @@
+# adapted from http://rubylearning.com/satishtalim/ruby_constants.html
+
+# p057mymethods2.rb  
+# variables and methods start lowercase  
+$glob = 5             # global variables start with $  
+class TestVar         # class name constant, start uppercase  
+ @@cla = 6            # class variables start with @@  
+ CONST_VAL = 7        # constant style, all caps, underscore  
+ def initialize(x)    # constructor  
+  @inst = x           # instance variables start with @  
+  @@cla += 1          # each object shares @@cla  
+ end  
+ def self.cla         # class method, getter  
+  @@cla  
+ end  
+ def self.cla=(y)     # class method, setter, also TestVar.  
+  @@cla = y  
+ end  
+ def inst             # instance method, getter  
+  @inst  
+ end  
+ def inst=(i)         # instance method, setter  
+  @inst = i  
+ end  
+end  
+puts $glob  
+test = TestVar.new(3) # calls constructor  
+puts TestVar.cla      # calls getter  
+puts test.inspect     # gives object ID and instance vars  
+TestVar.cla = 4       # calls setter  
+test.inst=8           # calls setter  
+puts TestVar.cla  
+puts test.inst        # calls getter  
+other = TestVar.new(17)  
+puts other.inspect  
+puts TestVar.cla  
diff --git a/v3/visualize.html b/v3/visualize.html
@@ -390,17 +390,20 @@
 <p style="margin-top: 5px;">
   <a class="exampleLink" id="rubyContainersLink" href="#">Containers</a> |
   <a class="exampleLink" id="rubyGlobalsLink" href="#">Globals</a> |
-  <a class="exampleLink" id="rubyToplevelLink" href="#">Toplevel</a> |
   <a class="exampleLink" id="rubyConstantsLink" href="#">Constants</a> |
   <a class="exampleLink" id="rubyBlocksLink" href="#">Blocks</a> |
-  <a class="exampleLink" id="rubyBlocksScopingLink" href="#">Blocks scoping</a>
+  <a class="exampleLink" id="rubyBlocksScopingLink" href="#">Block scoping</a>
   <p/>
   <a class="exampleLink" id="rubyProcLink" href="#">Procs</a> |
   <a class="exampleLink" id="rubyProcScopingLink" href="#">Proc scoping</a> |
   <a class="exampleLink" id="rubyLambdaScopingLink" href="#">Lambda scoping</a> |
   <a class="exampleLink" id="rubyInheritanceLink" href="#">Inheritance</a> |
-  <a class="exampleLink" id="rubyMegagreeterLink" href="#">Megagreeter</a> |
   <a class="exampleLink" id="rubySymbolsLink" href="#">Symbols</a>
+  <p/>
+  <a class="exampleLink" id="rubyPrivateProtectedLink" href="#">Protected & private</a> |
+  <a class="exampleLink" id="rubyInstClassVarsComplexLink" href="#">Class & instance vars</a> |
+  <a class="exampleLink" id="rubyToplevelLink" href="#">Toplevel defs</a> |
+  <a class="exampleLink" id="rubyMegagreeterLink" href="#">Megagreeter</a>
 </p>
 
 </div>
@@ -478,7 +481,7 @@
 href="https://github.com/pgbovine/OnlinePythonTutor/tree/master/v4-cokapi/backends/javascript">Backend
 source code</a>.</p>
 
-<p>5. Ruby 2.2.2 (MRI). <a
+<p>5. Ruby 2 using MRI 2.2.2. <a
 href="https://github.com/pgbovine/OnlinePythonTutor/tree/master/v4-cokapi/backends/ruby">Backend
 source code</a>.</p>
 
