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Cache ItemSet#next_symbols - #28

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Josh Holtrop 2024-07-25 20:33:15 -04:00
parent 74d94fef72
commit 95b3dc6550
1 changed files with 1 additions and 1 deletions
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lib/propane/parser/item_set.rb
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@ -46,7 +46,7 @@ class Propane
# @return [Set<Token, RuleSet>] # @return [Set<Token, RuleSet>]
# Set of next symbols for all Items in this ItemSet. # Set of next symbols for all Items in this ItemSet.
def next_symbols def next_symbols
Set.new(@items.map(&:next_symbol).compact) @_next_symbols ||= Set.new(@items.map(&:next_symbol).compact)
end end
# Build a next ItemSet for the given next symbol. # Build a next ItemSet for the given next symbol.