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author | varac <varacanero@zeromail.org> | 2017-01-13 12:41:58 +0100 |
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committer | varac <varacanero@zeromail.org> | 2017-01-13 12:41:58 +0100 |
commit | 066c08f8362d53f0f30897cb8710d11260c726ea (patch) | |
tree | a6369eecd88bb731fe413d0bbc8af73d74d1f447 /lib/puppet/functions/is_a.rb | |
parent | 71123634744b9fe2ec7d6a3e38e9789fd84801e3 (diff) | |
parent | b65dd1f45d10e10e45455358aeabb29167990e2c (diff) |
Merge remote-tracking branch 'origin/master' into leap_master
Diffstat (limited to 'lib/puppet/functions/is_a.rb')
-rw-r--r-- | lib/puppet/functions/is_a.rb | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/puppet/functions/is_a.rb b/lib/puppet/functions/is_a.rb new file mode 100644 index 0000000..da98b03 --- /dev/null +++ b/lib/puppet/functions/is_a.rb @@ -0,0 +1,32 @@ +# Boolean check to determine whether a variable is of a given data type. This is equivalent to the `=~` type checks. +# +# @example how to check a data type +# # check a data type +# foo = 3 +# $bar = [1,2,3] +# $baz = 'A string!' +# +# if $foo.is_a(Integer) { +# notify { 'foo!': } +# } +# if $bar.is_a(Array) { +# notify { 'bar!': } +# } +# if $baz.is_a(String) { +# notify { 'baz!': } +# } +# +# See the documentation for "The Puppet Type System" for more information about types. +# See the `assert_type()` function for flexible ways to assert the type of a value. +# +Puppet::Functions.create_function(:is_a) do + dispatch :is_a do + param 'Any', :value + param 'Type', :type + end + + def is_a(value, type) + # See puppet's lib/puppet/pops/evaluator/evaluator_impl.rb eval_MatchExpression + Puppet::Pops::Types::TypeCalculator.instance?(type, value) + end +end |