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A.8.4 Primaries</div>
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constant_primary ::= </p>
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primary_literal </p>
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| ps_parameter_identifier </p>
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| ps_specparam_identifier </p>
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| genvar_identifier </p>
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| [ package_scope | class_scope ] enum_identifier </p>
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| constant_concatentation </p>
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| constant_multiple_concatenation </p>
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| constant_function_call </p>
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| ( constant_mintypmax_expression ) </p>
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| constant_cast </p>
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module_path_primary ::= </p>
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number </p>
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| identifier </p>
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| module_path_concatenation </p>
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| module_path_multiple_concatenation </p>
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| function_subroutine_call </p>
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| ( module_path_mintypmax_expression ) </p>
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primary ::= </p>
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primary_literal </p>
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| [ implicit_class_handle . | class_scope | package_scope ] hierarchical_identifier select </p>
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| empty_queue </p>
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| concatenation </p>
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| multiple_concatenation </p>
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| function_subroutine_call </p>
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| ( mintypmax_expression ) </p>
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| cast </p>
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| streaming_expression </p>
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| sequence_method_call </p>
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| $23 </p>
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| null </p>
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time_literal5 ::= </p>
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unsigned_number time_unit </p>
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| fixed_point_number time_unit </p>
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time_unit ::= s | ms | us | ns | ps | fs | step </p>
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implicit_class_handle6 ::= this | super | this . super </p>
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select ::= { [ expression ] } [ [ part_select_range ] ] </p>
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constant_select ::= { [ constant_expression ] } [ [ constant_part_select_range ] ] </p>
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primary_literal ::= number | time_literal | unbased_unsized_literal | string_literal </p>
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constant_cast ::= </p>
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casting_type ’ ( constant_expression ) </p>
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| casting_type ’ constant_concatenation </p>
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| casting_type ’ constant_multiple_concatentation </p>
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cast ::= </p>
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casting_type ’ ( expression ) </p>
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| casting_type ’ concatenation </p>
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| casting_type ’ multiple_concatentation</p></div>
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