feature: Create an Object Feature

Description Usage Arguments Value Examples

View source: R/core.R

Description

Create an Object Feature

Usage

1
feature(expr)

Arguments

expr

expression

Value

a Q7 feature

Examples

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Type1 <- type(function(num){})

hasMagic <- feature({
    change_number <- function(){
        num + 1
    }
})

myType1 <- Type1(1) %>% hasMagic()
myType1$change_number()


# Use S3 method dispatch for different behaviors
hasMagic <- feature_generic(s3 = "hasMagic")

hasMagic.Type1 <- feature({
    change_number <- function(){
        num + 1
    }
})

hasMagic.Type2 <- feature({
    change_number <- function(){
        num - 1
    }
})

Type1 <- type(function(num){},
              s3 = "Type1") %>%
    hasMagic()

Type2 <- type(function(num){},
              s3 = "Type2") %>%
    hasMagic()

myType1 <- Type1(1)
myType1$change_number()

myType2 <- Type2(1)
myType2$change_number()

iqis/foo documentation built on June 7, 2020, 5:15 a.m.