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juts doing a quick save

This commit is contained in:
John Mair 2011-04-22 18:09:27 +12:00
parent 537c4a6e43
commit 8f1d48236c
3 changed files with 55 additions and 4 deletions

View file

@ -171,6 +171,8 @@ current directory and count the number of lines in that file with
### Code Browsing
#### show-method
You can browse method source code with the `show-method` command. Nearly all Ruby methods (and some C methods, with the pry-doc
gem) can have their source viewed. Code that is longer than a page is
sent through a pager (such as less), and all code is properly syntax
@ -224,7 +226,47 @@ Note that we can also view C methods (from Ruby Core) using the
return result;
}
#### Special locals
Some commands such as `show-method`, `show-doc`, `show-command` `stat`
and `cat` update the `_file_` and `_dir_` local variables after they
run. These locals contain the full path to the file involved in the
last command as well as the directory containing that file.
You can then use these special locals in conjunction with shell
commands to do such things as change directory into the directory
containing the file, open the file in an editor, `cat` out the entire
file, and so on.
In the following example we wil use Pry to fix a bug in a method:
pry(main)> greet "john"
hello johnhow are you?=> nil
pry(main)> show-method greet
From: /Users/john/ruby/play/bug.rb @ line 2:
Number of lines: 4
def greet(name)
print "hello #{name}"
print "how are you?"
end
pry(main)> .emacsclient #{_file_}
pry(main)> load _file_
pry(main)> greet "john"
hello john
how are you?
=> nil
pry(main)> show-method greet
From: /Users/john/ruby/play/bug.rb @ line 2:
Number of lines: 4
def greet(name)
puts "hello #{name}"
puts "how are you?"
end
Features and limitations
------------------------

View file

@ -71,12 +71,13 @@ class Pry
@@cd_history << Dir.pwd
Dir.chdir(dest)
output.puts "=> #{dest}"
rescue Errno::ENOENT
output.puts "No such directory: #{dest}"
end
else
system(cmd)
if !system(cmd)
output.puts "Error: could not execute system command #{cmd}"
end
end
# Tick, tock, im getting rid of this shit soon.

View file

@ -110,8 +110,15 @@ e.g: stat hello_method
next if opts.help?
meth_name = args.shift
meth_name = meth_name_from_binding(target) if !meth_name
if meth_name
if meth_name =~ /\A([^\.\#]+)[\.\#](.+)\z/ && !opts.context?
context, meth_name = $1, $2
target = Pry.binding_for(target.eval(context))
end
else
meth_name = meth_name_from_binding(target)
end
if (meth = get_method_object(meth_name, target, opts.to_hash(true))).nil?
output.puts "Invalid method name: #{meth_name}. Type `stat --help` for help"
next
@ -123,6 +130,7 @@ e.g: stat hello_method
output.puts make_header(meth, code_type, code)
output.puts bold("Method Name: ") + meth_name
output.puts bold("Method Owner: ") + (meth.owner.to_s ? meth.owner.to_s : "Unknown")
output.puts bold("Method Language: ") + code_type.to_s.capitalize
output.puts bold("Method Type: ") + (meth.is_a?(Method) ? "Bound" : "Unbound")
output.puts bold("Method Arity: ") + meth.arity.to_s