exit and exit-all support return values

lib/pry/commands.rb

@@ -75,11 +75,12 @@ class Commands < CommandBase
       output.puts "Pry version: #{Pry::VERSION} on Ruby #{RUBY_VERSION}."
     end
 
-    command "exit-all", "End all nested Pry sessions. Aliases: !!" do
-      throw(:breakout, 0) 
+    command "exit-all", "End all nested Pry sessions. Accepts optional return value. Aliases: @!" do 
+      str = opts[:val].split.drop(1).join(' ')
+      throw(:breakout, [0, target.eval(str)])
     end
 
-    alias_command "!!", "exit-all", ""
+    alias_command "@!", "exit-all", ""
 
     command "ls", "Show the list of vars in the current scope. Type `ls --help` for more info." do |*args|
       options = {}
@@ -465,8 +466,9 @@ class Commands < CommandBase
       end
     end
 
-    command "exit", "End the current Pry session. Aliases: quit, back" do
-      throw(:breakout, opts[:nesting].level)
+    command "exit", "End the current Pry session. Accepts optional return value. Aliases: quit, back" do 
+      str = opts[:val].split.drop(1).join(' ')
+      throw(:breakout, [opts[:nesting].level, target.eval(str)])
     end
 
     alias_command "quit", "exit", ""

lib/pry/pry_instance.rb

@@ -86,7 +86,7 @@ def repl(target=TOPLEVEL_BINDING)
     target.eval("_pry_ = Pry.active_instance")
     target.eval("_ = Pry.last_result")
 
-    break_level = catch(:breakout) do
+    break_data = catch(:breakout) do
       nesting.push [nesting.size, target_self, self]
       loop do
         rep(target)
@@ -97,11 +97,18 @@ def repl(target=TOPLEVEL_BINDING)
 
     exec_hook :after_session, output, target_self
 
+    # If break_data is an array, then the last element is the return value
+    break_level, return_value = Array(break_data)
+
     # keep throwing until we reach the desired nesting level
     if nesting_level != break_level
-      throw :breakout, break_level
+      throw :breakout, break_data
     end
 
+    # if one was provided, return the return value
+    return return_value if return_value
+
+    # otherwise return the target_self
     target_self
   end
 

lib/pry/version.rb

@@ -1,3 +1,3 @@
 class Pry
-  VERSION = "0.6.1pro1"
+  VERSION = "0.6.1pro3"
 end