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Contents
module Cucumber
class ArityMismatchError < StandardError
end
module CoreExt
# Proc extension that allows a proc to be called in the context of any object.
# Also makes it possible to tack a name onto a Proc.
module CallIn
PROC_PATTERN = /[\d\w]+@(.*):(.*)>/
if Proc.new{}.to_s =~ PROC_PATTERN
def to_backtrace_line
"#{file_colon_line}:in `#{name}'"
end
def to_comment_line
"# #{file_colon_line}"
end
def file_colon_line
path, line = *to_s.match(PROC_PATTERN)[1..2]
path = File.expand_path(path)
pwd = Dir.pwd
path = path[pwd.length+1..-1]
"#{path}:#{line}"
end
else
# This Ruby implementation doesn't implement Proc#to_s correctly
STDERR.puts "*** THIS RUBY IMPLEMENTATION DOESN'T REPORT FILE AND LINE FOR PROCS ***"
def to_backtrace_line
nil
end
def to_comment_line
""
end
end
attr_accessor :name
def call_in(obj, *args)
obj.extend(mod)
if self != StepMother::PENDING && args.length != arity2
# We have to manually raise when the block has arity -1 (no pipes)
raise ArityMismatchError.new("expected #{arity2} block argument(s), got #{args.length}")
else
obj.__send__(meth, *args)
end
end
def arity2
arity == -1 ? 0 : arity
end
def meth
@meth ||= "__cucumber_#{object_id}"
end
def mod
p = self
m = meth
@mod ||= Module.new do
define_method(m, &p)
end
end
end
end
end
Version data entries
30 entries across 30 versions & 6 rubygems