Added show_source_list and show_call_stack to breakpoints to make it easier to get context (closes #5476) [takiuchi@drecom.co.jp]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4545 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 24 insertions, 0 deletions

diff --git a/railties/lib/breakpoint.rb b/railties/lib/breakpoint.rb
index 327e43e8e3..60f7fdbbef 100644
--- a/railties/lib/breakpoint.rb
+++ b/railties/lib/breakpoint.rb
@@ -178,6 +178,30 @@ module Breakpoint
       end

     end

 

+    # Prints the source code surrounding the location where the

+    # breakpoint was issued.

+    def show_source_list(context = 5)

+      start_line, break_line, result = source_lines(context, true)

+      offset = [(break_line + context).to_s.length, 4].max

+      result.each_with_index do |line, i|

+        mark = (start_line + i == break_line ? '->' : '  ')

+        client.puts("%0#{offset}d%s#{line}" % [start_line + i, mark])

+      end

+      Pathname.new(@__bp_file).cleanpath.to_s

+    end

+

+    # Prints the call stack.

+    def show_call_stack(depth = 10)

+      base = Pathname.new(RAILS_ROOT).cleanpath.to_s

+      caller[1..depth].each do |line|

+        line.sub!(/^[^:]*/) do |path|

+          Pathname.new(path).cleanpath.to_s

+        end

+        client.puts(line.index(base) == 0 ? line[(base.length + 1)..-1] : line)

+      end

+      "#{Pathname.new(@__bp_file).cleanpath.to_s}:#{@__bp_line}"

+    end

+

     # Lets an object that will forward method calls to the breakpoint

     # client. This is useful for outputting longer things at the client

     # and so on. You can for example do these things: