Question

concatenation ::=

{ expression { , expression } }

| { struct_member_label : expression { , struct_member_label : expression } }

| { array_member_label : expression { , array_member_label : expression } }

constant_concatenation ::=

{ constant_expression { , constant_expression } }

| { struct_member_label : constant_expression { , struct_member_label : constant_expression } }

| { array_member_label : constant_expression { , array_member_label : constant_expression } }

struct_member_label ::=

default

| type_identifier

| variable_identifier

array_member_label ::=

default

| type_identifier

| constant_expression

constant_multiple_concatenation ::= { constant_expression constant_concatenation }

module_path_concatenation ::= { module_path_expression { , module_path_expression } }

module_path_multiple_concatenation ::= { constant_expression module_path_concatenation }

multiple_concatenation ::= { expression concatenation }19

streaming_expression ::= { stream_operator [ slice_size ] stream_concatenation }

stream_operator ::= >> | <<

slice_size ::= ps_type_identifier | constant_expression

stream_concatenation ::= { stream_expression { , stream_expression } }

stream_expression ::= expression [ with [ array_range_expression ] ]

array_range_expression ::=

expression

| expression : expression

| expression +: expression

| expression -: expression

empty_queue22 ::= { }