Thanks for your reply, Khen1950fx.

I wasn't suggesting not quoting. Rather, I was saying that I thought subtype DateTime => ... should perform the same quoting as subtype 'DateTime', ...: the B::Deparse tests, showing subtype('DateTime', ... for both forms, suggest this is correct.

My subsequent example without quoting (in "Perhaps this is a documentation error. ...") was intended to show what would actually fail silently. With this form, B::Deparse gives 'DateTime'->subtype, ....

In your test code, I note you've doubled up on the commas (i.e. 'XXX', => ...) in two places. With your code as is, I get 

1..1
ok 1 - made a DateTime constraint

[download]

Removing the quotes around DateTime (i.e. subtype DateTime,\n  => ...), I get 

1..1
Can't locate object method "subtype" via package "DateTime" at pm_moos
+e_quote.pl line 9.
# Looks like your test exited with 255 before it could output anything
+.

[download]

Then removing the comma after DateTime (i.e. subtype DateTime\n  => ...), I get 

1..1
ok 1 - made a DateTime constraint

[download]

The fat comma is now quoting DateTime.

-- Ken

In reply to Re^2: Moose::Util::TypeConstraints - Querying subtype() Caveat by kcott
in thread Moose::Util::TypeConstraints - Querying subtype() Caveat by kcott

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