MrbParser: mrb file parser
MrbParer is a parser library and command to parse mrb format, binary code format generated by mruby(mrbc).
Installation
Add this line to your application's Gemfile:
gem 'mrb_parser'
And then execute:
$ bundle
Or install it yourself as:
$ gem install mrb_parser
Usage
MrbParser has a simple command: mrb_parser.
$ mrb_parser sample.mrb
To show more information, with -d option:
$ mrb_parser -d sample.mrb
Example:
$ cat hello.rb
def hello(msg)
p "Hello, #{msg}"
end
hello("world")
$ mrbc -g hello.rb
$ mrb_parser hello.mrb
*** BINARY HEADER ***
secID: RITE
ver : 0002
crc : 0xe756 (true)
size : 0x00000101
compiler:
name: MATZ
ver : 0000
*** ***
*** IREP SECTION ***
secID : IREP
size : 145
vm ver: 0000
*** IREP RECORD ***
locals: 1
regs : 3
iseqs : 7
code: 00800048
000 OP_TCLASS R1
code: 010000c0
001 OP_LAMBDA R2 I(+0) 1
code: 00800046
002 OP_METHOD R1 :hello
code: 00800006
003 OP_LOADSELF R1
code: 0100003d
004 OP_STRING R2 world
code: 008000a0
005 OP_SEND R1 :hello 1
code: 0000004a
006 OP_STOP
pools : 1
pool: "world"
syms : 1
sym: "hello"
ireps : 1
*** IREP RECORD ***
locals: 3
regs : 6
iseqs : 7
code: 02000026
000 OP_ENTER 1:0:0:0:0:0:0
code: 01800006
001 OP_LOADSELF R3
code: 0200003d
002 OP_STRING R4 Hello,
code: 02804001
003 OP_MOVE R5 R1
code: 0201403e
004 OP_STRCAT R4 R5
code: 018000a0
005 OP_SEND R3 :p 1
code: 01800029
006 OP_RETURN R3
pools : 2
pool: "Hello, "
pool: ""
syms : 1
sym: "p"
ireps : 0
*** ***
*** ***
*** ***
*** DEBUG SECTION ***
secID: DBG
size : 82
files: 1
filename: hello.rb
*** DEBUG INFO ***
count: 31
files: 1
*** DEBUG INFO FILE ***
start: 0
fname: hello.rb
line type: 0 (ARY)
lines: 7
line: 3
line: 3
line: 3
line: 5
line: 5
line: 5
line: 5
*** ***
*** DEBUG INFO ***
count: 31
files: 1
*** DEBUG INFO FILE ***
start: 0
fname: hello.rb
line type: 0 (ARY)
lines: 7
line: 3
line: 2
line: 2
line: 2
line: 2
line: 2
line: 2
*** ***
*** ***
*** ***
*** ***
*** END SECTION ***
secID: END
size : 8
*** ***
TODO
- support LINENO section (current implementation is broken)
Contributing
- Fork it
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request