patternGuard method
Pattern guard when expression.
Implementation
Parser<ExpressionNode> patternGuard() =>
(ref0(whenToken) & ref0(expression)).map((l) => l[1] as ExpressionNode);
Pattern guard when expression.
Parser<ExpressionNode> patternGuard() =>
(ref0(whenToken) & ref0(expression)).map((l) => l[1] as ExpressionNode);