validate: Validate objects

In egnha/rong: Functional Input Validation

Description

Validate objects

Usage

validate(., ..., error_class = NULL)

validator(..., error_class = NULL)

Arguments

.	Object to validate.
...	Input validation checks.
error_class	Character vector of the error subclass to signal if validation fails. If NULL (the default), the error subclass is objectValidationError.

Examples

# All assertions valid: data frame returned (invisibly)
validate(mtcars,
         is.data.frame,
         chk_all_map(is.numeric),
         chk_gt(10, nrow(.)),
         chk_has_names(c("mpg", "cyl")))

# Some assertions invalid: diagnostic error raised
## Not run: 
validate(mtcars,
         is.matrix,
         chk_all_map(is.numeric),
         chk_gt(1000, nrow(.)),
         chk_has_name("cylinders"))
## End(Not run)

egnha/rong documentation built on May 7, 2019, 9:48 p.m.