logicalOrPattern method
Logical-OR pattern (p1 || p2).
Implementation
Parser<PatternNode> logicalOrPattern() =>
ref0(logicalAndPattern)
.plusSeparated(ref1(token, '||'))
.map(
(seq) => seq.elements.reduce(
(left, right) =>
LogicalPatternNode(left: left, operator: '||', right: right),
),
);