modulus approach for show-method working 100%

lib/pry/helpers/command_helpers.rb

@@ -62,7 +62,10 @@ class Pry
           code = strip_comments_from_c_code(code)
         when :ruby
           if meth.source_location.first == "(pry)"
-            code = strip_leading_whitespace(Pry.expr_store[meth.source_location.last])
+            bucket = (meth.source_location.last / 1000) * 1000
+            line = meth.source_location.last % 1000
+            p = Pry.new(:input => StringIO.new(Pry.expr_store[bucket].each_line.to_a[line..-1].join)).r(target)
+            code = strip_leading_whitespace(p)
           else
             code = strip_leading_whitespace(meth.source)
           end

lib/pry/pry_class.rb

@@ -253,8 +253,8 @@ class Pry
     @should_load_rc = true
     @rc_loaded = false
     @cli = false
-    @current_expr = -1
-    @expr_store = []
+    @current_expr = 0
+    @expr_store = {}
   end
 
   # Basic initialization.

lib/pry/pry_instance.rb

@@ -191,8 +191,10 @@ class Pry
     # This also sets the `_` local for the session.
     expr = r(target)
 
-    Pry.expr_store << expr
-    set_last_result(target.eval(expr, "(pry)", Pry.current_expr += 1), target)
+    Pry.expr_store[Pry.current_expr] =  expr
+    result = set_last_result(target.eval(expr, "(pry)", Pry.current_expr), target)
+    Pry.current_expr += 1000
+    result
   rescue SystemExit => e
     exit
   rescue Exception => e