shugo

class Module
  def append_features(base)
    base.class_eval(&@_included_block) if instance_variable_defined?("@_included_block")
  end

  def included(klass = nil, &block)
    if block_given?
      @_included_block = block
    else
      super if defined?(super)

shugo

class Foo
  A = "Foo::A"
  @@b = "Foo::@@b"
end

module MyClassEval
  A = "MyClassEval::A"
  @@b = "MyClassEval::@@b"
  def self.my_class_eval(klass, &block)
    klass.class_eval(&block)

shugo

diff --git a/iseq.c b/iseq.c
index 80364ca..fc13d70 100644
--- a/iseq.c
+++ b/iseq.c
@@ -1344,11 +1344,15 @@ rb_iseq_clone(VALUE iseqval, VALUE newcbase)
     if (!iseq1->orig) {
 	iseq1->orig = iseqval;
     }
+    if (iseq0->local_iseq == iseq0) {
+	iseq1->local_iseq = iseq1;

shugo

diff --git a/vm.c b/vm.c
index b4d0f39..949fdb6 100644
--- a/vm.c
+++ b/vm.c
@@ -69,7 +69,7 @@ static inline VALUE
 rb_vm_set_finish_env(rb_thread_t * th)
 {
     vm_push_frame(th, 0, VM_FRAME_MAGIC_FINISH,
-		  Qnil, rb_cObject, th->cfp->lfp[0], 0,
+		  Qnil, Qnil, th->cfp->lfp[0], 0,

shugo

Building native extensions.  This could take a while...
ERROR:  Error installing mysql2:
	ERROR: Failed to build gem native extension.

        /home/shugo/local/bin/ruby-trunk extconf.rb
checking for rb_thread_blocking_region()... no
checking for mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
creating Makefile

shugo

SHELL = /bin/sh

# V=0 quiet, V=1 verbose.  other values don't work.
V = 0
Q1 = $(V:1=)
Q = $(Q1:0=@)
n=$(NULLCMD)
ECHO1 = $(V:1=@$n)
ECHO = $(ECHO1:0=@echo)

shugo

have_func: checking for rb_thread_blocking_region()... -------------------- no

"gcc -o conftest -I/home/shugo/local/include/ruby-1.9.1/i686-linux -I/home/shugo/local/include/ruby-1.9.1/ruby/backward -I/home/shugo/local/include/ruby-1.9.1 -I.  -D_FILE_OFFSET_BITS=64   -O0 -g -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration conftest.c  -L. -L/home/shugo/local/lib -Wl,-R/home/shugo/local/lib -L.  -rdynamic -Wl,-export-dynamic       -lpthread -lrt -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: int main() {return 0;}
/* end */

shugo

require "pp"

def queens(n, k = n)
  if k == 0
    [[]]
  else
    queens(n, k - 1).flat_map {|queens|
      (1..n).map {|col| [k, col]}.select {|queen|
        queens.all? {|q|
          q[0] != queen[0] &&

shugo

require 'net/https'
http = Net::HTTP.new("example.com", 443)
http.use_ssl = true
http.verify_mode = OpenSSL::SSL::VERIFY_PEER
store = OpenSSL::X509::Store.new
store.set_default_paths
http.cert_store = store
# For Windows, use Net::HTTP#ca_file= instead of the above three lines as follows:
# http.ca_file = "/path/to/cacert.pem"
# Root certificates are available at http://curl.haxx.se/ca/cacert.pem

shugo

$ cat t.rb
b = eval("def get_binding; binding; end; get_binding",
         TOPLEVEL_BINDING,
         __FILE__,
         __LINE__ - 3)
p eval(<<EOF, b)
def foo; end
self.foo
EOF
$ ~/ruby/1.9.2/bin/ruby-1.9.2 -v /tmp/t.rb