ruby_for_insn

01-for.rb

for i in [1, 2, 3]
  p i
  j = i
end

p j

[1, 2, 3].each do |k|
  l = k
end

x = 0
while x < 5
  x += 1
  y = x
end

02-insns

== disasm: #<ISeq:<main>@for.rb:1 (1,0)-(16,3)> (catch: FALSE)
== catch table
| catch type: break  st: 0000 ed: 0005 sp: 0000 cont: 0005
| == disasm: #<ISeq:block in <main>@for.rb:1 (1,0)-(4,3)> (catch: FALSE)
| == catch table
| | catch type: redo   st: 0005 ed: 0016 sp: 0000 cont: 0005
| | catch type: next   st: 0005 ed: 0016 sp: 0000 cont: 0016
| |------------------------------------------------------------------------
| local table (size: 1, argc: 1 [opts: 0, rest: -1, post: 0, block: -1, kw: -1@-1, kwrest: -1])
| [ 1] ?@0<Arg>
| 0000 getlocal_WC_0                          ?@0                       (   1)
| 0002 setlocal_WC_1                          i@0
| 0004 nop                                    [Bc]
| 0005 putself                                                          (   2)[Li]
| 0006 getlocal_WC_1                          i@0
| 0008 opt_send_without_block                 <calldata!mid:p, argc:1, FCALL|ARGS_SIMPLE>
| 0010 pop
| 0011 getlocal_WC_1                          i@0                       (   3)[Li]
| 0013 dup
| 0014 setlocal_WC_1                          j@1
| 0016 nop
| 0017 leave                                                            (   4)[Br]
| catch type: break  st: 0013 ed: 0018 sp: 0000 cont: 0018
| == disasm: #<ISeq:block in <main>@for.rb:8 (8,15)-(10,3)> (catch: FALSE)
| == catch table
| | catch type: redo   st: 0001 ed: 0006 sp: 0000 cont: 0001
| | catch type: next   st: 0001 ed: 0006 sp: 0000 cont: 0006
| |------------------------------------------------------------------------
| local table (size: 2, argc: 1 [opts: 0, rest: -1, post: 0, block: -1, kw: -1@-1, kwrest: -1])
| [ 2] k@0<Arg>   | [ 1] l@1
| 0000 nop                                                              (   8)[Bc]
| 0001 getlocal_WC_0                          k@0                       (   9)[Li]
| 0003 dup
| 0004 setlocal_WC_0                          l@1
| 0006 nop
| 0007 leave                                                            (  10)[Br]
| catch type: break  st: 0029 ed: 0049 sp: 0000 cont: 0049
| catch type: next   st: 0029 ed: 0049 sp: 0000 cont: 0026
| catch type: redo   st: 0029 ed: 0049 sp: 0000 cont: 0029
|------------------------------------------------------------------------
local table (size: 4, argc: 0 [opts: 0, rest: -1, post: 0, block: -1, kw: -1@-1, kwrest: -1])
[ 4] i@0        [ 3] j@1        [ 2] x@2        [ 1] y@3
0000 duparray                               [1, 2, 3]                 (   1)[Li]
0002 send                                   <calldata!mid:each, argc:0>, block in <main>
0005 nop
0006 pop                                                              (   1)
0007 putself                                                          (   6)[Li]
0008 getlocal_WC_0                          j@1
0010 opt_send_without_block                 <calldata!mid:p, argc:1, FCALL|ARGS_SIMPLE>
0012 pop
0013 duparray                               [1, 2, 3]                 (   8)[Li]
0015 send                                   <calldata!mid:each, argc:0>, block in <main>
0018 nop
0019 pop                                                              (   8)
0020 putobject_INT2FIX_0_                                             (  12)[Li]
0021 setlocal_WC_0                          x@2
0023 jump                                   40                        (  13)[Li]
0025 putnil
0026 pop
0027 jump                                   40
0029 getlocal_WC_0                          x@2                       (  14)[Li]
0031 putobject_INT2FIX_1_
0032 opt_plus                               <calldata!mid:+, argc:1, ARGS_SIMPLE>
0034 setlocal_WC_0                          x@2
0036 getlocal_WC_0                          x@2                       (  15)[Li]
0038 setlocal_WC_0                          y@3
0040 getlocal_WC_0                          x@2                       (  13)
0042 putobject                              5
0044 opt_lt                                 <calldata!mid:<, argc:1, ARGS_SIMPLE>
0046 branchif                               29
0048 putnil
0049 nop
0050 leave                                                            (  15)