Require files from pry.rb; deps from each file that uses them

This change brings some order to how we require files. Previously, we required
app files from everywhere, including pry.rb. Now we require app files only from
pry.rb.

External and stdlib dependencies are required at places where they're used, not
globally.

3 files changed, 6 insertions, 0 deletions

diff --git a/lib/pry/code/code_file.rb b/lib/pry/code/code_file.rb
index 5464183a..7ac6ef0e 100644
--- a/lib/pry/code/code_file.rb
+++ b/lib/pry/code/code_file.rb
@@ -1,3 +1,5 @@
+require 'method_source'
+
 class Pry
   class CodeFile
     DEFAULT_EXT = '.rb'.freeze
diff --git a/lib/pry/code/code_range.rb b/lib/pry/code/code_range.rb
index a28bdedb..51d32a2e 100644
--- a/lib/pry/code/code_range.rb
+++ b/lib/pry/code/code_range.rb
@@ -1,3 +1,5 @@
+require 'coderay'
+
 class Pry
   class Code
     # Represents a range of lines in a code listing.
diff --git a/lib/pry/code/loc.rb b/lib/pry/code/loc.rb
index 4cc07063..5ec4ed87 100644
--- a/lib/pry/code/loc.rb
+++ b/lib/pry/code/loc.rb
@@ -1,3 +1,5 @@
+require 'coderay'
+
 class Pry
   class Code
     # Represents a line of code (which may, in fact, contain multiple lines if