README.Rmd

---
output: github_document
---
<!-- README.md is generated from README.Rmd. Please edit that file -->

```{r, include = FALSE}
knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>",
  fig.path = "man/figures/README-",
  out.width = "100%"
)
```

# Q7

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[![Lifecycle: experimental](https://img.shields.io/badge/lifecycle-experimental-orange.svg)](https://www.tidyverse.org/lifecycle/#experimental)
[![Travis build status](https://travis-ci.org/iqis/q7.svg?branch=master)](https://travis-ci.org/iqis/q7)
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Q7 is a type system that enables a postmodern flavor of compositional object-oriented programming (OOP). It is simple, flexible and promotes healthy program design. 
  
Q7 features: 

- `type()`, `feature()` and `implement()` to compose objects;
- For each object, `initialize()` and `finalize()` to run at its beginning and end of life;
- For each object, `public`, `private`, `final`, `private_final` and `active` binding modifiers to change the visibility and behavior of its members.

## Installation

``` r
# install.packages("devtools")
devtools::install_github("iqis/Q7")
```
```{r}
require(Q7)
```

### Example
Make a Q7 object in 3 easy steps. 

1, Define an object type: 
```{r}
Adder <- type(function(num1, num2){
    add_nums <- function(){
        num1 + num2
    }
 })
```

2, Instantiate the object:
```{r}
myAdder <- Adder(1, 2)
```

3, Enjoy!
```{r}
myAdder$add_nums()
```

See vignettes for extending an object and other topics.