fireworks

  ________  
 /\firewo \
/  \ 花 rk \
\  /  火 s /
 \/_______/

Fireworks for R

A toolbox for hacking on the language.

fireworks provides a copy of Defn.h from R 4.4.0, allowing packges linking to it access to internal R source definitions.

These provide, inter alia, the ability to directly manipulate a SEXPREC struct.

Quick Start

1. Add fireworks to your package DESCRIPTION under LinkingTo:
2. Add the line #include "fireworks.h" in your C/C++ file below other R header includes

The package also includes a couple of demo functions:

library(fireworks)

x <- fountain()
str(x)
#>  raw [1:108279415934912] c0 8f 1f c4 ...
x[1]
#> [1] c0
x[]
#> Error: cannot allocate vector of size 100843.1 Gb

isS4(x)
#> [1] FALSE
sparkle(x)
isS4(x)
#> [1] TRUE

boom()
#> Error in need_screenshot(x, ...): use of NULL environment is defunct
tryCatch(boom(), error = function(e) TRUE)
#> Error in need_screenshot(x, ...): use of NULL environment is defunct
x <- boom()
#> Error in eval(expr, envir, enclos): attempt to bind a variable to R_UnboundValue

isS4(sparkle(boom()))
#> [1] TRUE

Installation

Install the latest dev build from R-universe:

install.packages("fireworks", repos = "https://shikokuchuo.r-universe.dev")

Links

◈ fireworks R package: https://shikokuchuo.net/fireworks/

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Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.