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Contents
Puppet::Parser::Functions::newfunction(
:assert_type,
:type => :rvalue,
:arity => -3,
:doc => "Returns the given value if it is an instance of the given type, and raises an error otherwise.
Optionally, if a block is given (accepting two parameters), it will be called instead of raising
an error. This to enable giving the user richer feedback, or to supply a default value.
Example: assert that `$b` is a non empty `String` and assign to `$a`:
$a = assert_type(String[1], $b)
Example using custom error message:
$a = assert_type(String[1], $b) |$expected, $actual| {
fail('The name cannot be empty')
}
Example, using a warning and a default:
$a = assert_type(String[1], $b) |$expected, $actual| {
warning('Name is empty, using default')
'anonymous'
}
See the documentation for 'The Puppet Type System' for more information about types.
- since Puppet 3.7
- requires future parser/evaluator
") do |args|
function_fail(["assert_type() is only available when parser/evaluator future is in effect"])
end
Version data entries
50 entries across 50 versions & 2 rubygems