 | |
| Developer(s) | Yukihiro Matsumoto et al. |
|---|---|
| Initial release | April 20, 2012 |
| Stable release | |
| Repository | |
| Written in | C and Ruby |
| Operating system | Cross-platform |
| Standard(s) | ISO/IEC 30170:2012 |
| Type | Ruby programming language interpreter |
| License | MIT License [3] |
| Website | mruby |
mruby is an interpreter for the Ruby programming language with the intention of being lightweight and easily embeddable. [4] [5] The project is headed by Yukihiro Matsumoto, with over 100 contributors currently working on the project.
mruby 1.0 supports the Ruby 2.1 core API, but none of the standard library. As well as being able to execute most basic Ruby code, mruby also features a bytecode compiler and virtual machine, as well as the ability to be easily embedded and integrated into C or C++ code, in a similar manner to Lua or Tcl.
mruby 2.0.0 [6] adds support for several Ruby 2.x methods beyond Ruby 2.1. v2.0.0 also changed to variable length bytecode instructions format.
mruby bytecode can be embedded in C code, and thus, can be compiled into a standalone executable. [7]
mruby also aims [4] to be compliant with the ISO/IEC 30170:2012 standard. [8]
#include<stdio.h>#include<mruby.h>#include<mruby/compile.h>intmain(void){mrb_state*mrb=mrb_open();charcode[]="5.times { puts 'mruby is awesome!' }";printf("Executing Ruby code with mruby:\n");mrb_load_string(mrb,code);mrb_close(mrb);return0;}Assuming that the mruby library and headers are installed, the program can be compiled and executed by running the following commands from the terminal: [9]
$ cc example.c -lmruby -lm -o example $ ./example
mruby includes a minimalistic virtual machine used to execute mruby bytecode, nicknamed RiteVM:
$ mrbc test.rb $ mruby -b test.mrb
The first command compiles Ruby code to mruby bytecode, creating a file called "test.mrb", which can then be executed by appending the "-b" flag to the normal interpreter arguments. [10]
C is a general-purpose programming language. It was created in the 1970s by Dennis Ritchie and remains very widely used and influential. By design, C's features cleanly reflect the capabilities of the targeted CPUs. It has found lasting use in operating systems code, device drivers, and protocol stacks, but its use in application software has been decreasing. C is commonly used on computer architectures that range from the largest supercomputers to the smallest microcontrollers and embedded systems.
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JRuby is an implementation of the Ruby programming language atop the Java Virtual Machine, written largely in Java. It is free software released under a three-way EPL/GPL/LGPL license. JRuby is tightly integrated with Java to allow the embedding of the interpreter into any Java application with full two-way access between the Java and the Ruby code.
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Dalvik is a discontinued process virtual machine (VM) in the Android operating system that executes applications written for Android. Dalvik was an integral part of the Android software stack in the Android versions 4.4 "KitKat" and earlier, which were commonly used on mobile devices such as mobile phones and tablet computers, and more in some devices such as smart TVs and wearables. Dalvik is open-source software, originally written by Dan Bornstein, who named it after the fishing village of Dalvík in Eyjafjörður, Iceland.
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