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Puppet::Functions.create_function(:validate_legacy) do
# The function checks a value against both the target_type (new) and the previous_validation function (old).
dispatch :validate_legacy do
param 'Any', :scope
param 'Type', :target_type
param 'String', :function_name
param 'Any', :value
repeated_param 'Any', :args
end
dispatch :validate_legacy_s do
param 'Any', :scope
param 'String', :type_string
param 'String', :function_name
param 'Any', :value
repeated_param 'Any', :args
end
# Workaround PUP-4438 (fixed: https://github.com/puppetlabs/puppet/commit/e01c4dc924cd963ff6630008a5200fc6a2023b08#diff-
# c937cc584953271bb3d3b3c2cb141790R221) to support puppet < 4.1.0 and puppet < 3.8.1.
def call(scope, *args)
manipulated_args = [scope] + args
self.class.dispatcher.dispatch(self, scope, manipulated_args)
end
def validate_legacy_s(scope, type_string, *args)
t = Puppet::Pops::Types::TypeParser.new.parse(type_string, scope)
validate_legacy(scope, t, *args)
end
def validate_legacy(scope, target_type, function_name, value, *prev_args)
if assert_type(target_type, value)
if previous_validation(scope, function_name, value, *prev_args)
# Silently passes
else
Puppet.notice("Accepting previously invalid value for target type '#{target_type}'")
end
else
inferred_type = Puppet::Pops::Types::TypeCalculator.infer_set(value)
error_msg = Puppet::Pops::Types::TypeMismatchDescriber.new.describe_mismatch("validate_legacy(#{function_name})", target_type, inferred_type)
if previous_validation(scope, function_name, value, *prev_args)
call_function('deprecation', 'validate_legacy', error_msg)
else
call_function('fail', error_msg)
end
end
end
def previous_validation(scope, function_name, value, *prev_args)
# Call the previous validation function and catch any errors. Return true if no errors are thrown.
scope.send("function_#{function_name}".to_s, [value, *prev_args])
true
rescue Puppet::ParseError
false
end
def assert_type(type, value)
Puppet::Pops::Types::TypeCalculator.instance?(type, value)
end
end
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