is_try_error: Is the input a condition?

In assertive.types: Assertions to Check Types of Variables

Description

Checks to see if the input is a message, warning or error.

Usage

assert_is_try_error(x, severity = getOption("assertive.severity", "stop"))

assert_is_simple_error(x, severity = getOption("assertive.severity", "stop"))

assert_is_error(x, severity = getOption("assertive.severity", "stop"))

assert_is_simple_warning(x, severity = getOption("assertive.severity",
  "stop"))

assert_is_warning(x, severity = getOption("assertive.severity", "stop"))

assert_is_simple_message(x, severity = getOption("assertive.severity",
  "stop"))

assert_is_message(x, severity = getOption("assertive.severity", "stop"))

assert_is_condition(x, severity = getOption("assertive.severity", "stop"))

is_try_error(x, .xname = get_name_in_parent(x))

is_simple_error(x, .xname = get_name_in_parent(x))

is_error(x, .xname = get_name_in_parent(x))

is_simple_warning(x, .xname = get_name_in_parent(x))

is_warning(x, .xname = get_name_in_parent(x))

is_simple_message(x, .xname = get_name_in_parent(x))

is_message(x, .xname = get_name_in_parent(x))

is_condition(x, .xname = get_name_in_parent(x))

Arguments

x	Input to check.
severity	How severe should the consequences of the assertion be? Either "stop", "warning", "message", or "none".
.xname	Not intended to be used directly.

Value

The is_* functions return TRUE or FALSE depending upon whether or not the input is a datetime object.

The assert_* functions return nothing but throw an error if the corresponding is_* function returns FALSE.

Examples

# stop returns simpleErrors, unless wrapped in a call to try
simple_err <- tryCatch(stop("!!!"), error = function(e) e)
is_simple_error(simple_err)
try_err <- try(stop("!!!"))
is_try_error(try_err)

# is_error checks for both error types
is_error(try_err)
is_error(simple_err)

# warning returns simpleWarnings
simple_warn <- tryCatch(warning("!!!"), warning = function(w) w)
is_simple_warning(simple_warn)
is_warning(simple_warn)

# message returns simpleMessages
simple_msg <- tryCatch(message("!!!"), message = function(m) m)
is_simple_message(simple_msg)
is_message(simple_msg)

# These examples should fail.
assertive.base::dont_stop(assert_is_simple_error(try_err))
assertive.base::dont_stop(assert_is_try_error(simple_err))

assertive.types documentation built on May 1, 2019, 10:31 p.m.