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.\" ========================================================================
.\"
.IX Title "Tangence::Meta::Type 3pm"
.TH Tangence::Meta::Type 3pm "2022-12-13" "perl v5.36.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
"Tangence::Meta::Type" \- structure representing one "Tangence" value type
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This data structure object represents information about a type, such as a
method or event argument, a method return value, or a property element type.
.PP
Due to their simple contents and immutable nature, these objects may be
implemented as singletons. Repeated calls to the constructor method for the
same type name will yield the same instance.
.SH "CONSTRUCTOR"
.IX Header "CONSTRUCTOR"
.SS "make"
.IX Subsection "make"
.Vb 1
\&   $type = Tangence::Meta::Type\->make( $primitive )
.Ve
.PP
Returns an instance to represent the given primitive type signature.
.PP
.Vb 1
\&   $type = Tangence::Meta::Type\->make( $aggregate => $member_type )
.Ve
.PP
Returns an instance to represent the given aggregation of the given type
instance.
.SS "make _from_sig"
.IX Subsection "make _from_sig"
.Vb 1
\&   $type = Tangence::Meta::Type\->make_from_sig( $sig )
.Ve
.PP
Parses the given full Tangence type signature and returns an instance to
represent it.
.SH "ACCESSORS"
.IX Header "ACCESSORS"
.SS "aggregate"
.IX Subsection "aggregate"
.Vb 1
\&   $agg = $type\->aggregate
.Ve
.PP
Returns \f(CW"prim"\fR for primitive types, or the aggregation name for list and
dict aggregate types.
.SS "member_type"
.IX Subsection "member_type"
.Vb 1
\&   $member_type = $type\->member_type
.Ve
.PP
Returns the member type for aggregation types. Throws an exception for
primitive types.
.SS "sig"
.IX Subsection "sig"
.Vb 1
\&   $sig = $type\->sig
.Ve
.PP
Returns the Tangence type signature for the type.
.SH "AUTHOR"
.IX Header "AUTHOR"
Paul Evans <leonerd@leonerd.org.uk>