Sha256: d148430b3d02b86c118053443bf67772350933504d6a5d18cb8fae22ff970589
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Size: 1.47 KB
Versions: 18
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Stored size: 1.47 KB
Contents
module Redcar
class REPL
class RubyMirror
include Redcar::REPL::ReplMirror
def initialize
# required by ReplMirror
@prompt = ">>"
@history = "# Redcar REPL\n\n#{@prompt} "
@instance = Main.new
end
def title
"Ruby REPL"
end
def grammar_name
"Ruby REPL"
end
# Get the complete history as a pretty formatted string.
#
# @return [String]
def read
@history
end
def clear_history
@history = @history.split("\n").last
notify_listeners(:change)
end
private
class Main
attr_reader :output
def initialize
@binding = binding
@output = nil
end
def inspect
"main"
end
def execute(command)
eval(command, @binding).inspect
end
end
def format_error(e)
backtrace = e.backtrace.reject{|l| l =~ /ruby_mirror/}
backtrace.unshift("(repl):1")
"#{e.class}: #{e.message}\n #{backtrace.join("\n ")}"
end
def send_to_repl expr
@history += expr + "\n"
begin
@history += "=> " + @instance.execute(expr)
rescue Object => e
@history += "x> " + format_error(e)
end
@history += "\n" + @prompt + " "
notify_listeners(:change)
end
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems