dictOrSetComp method
Implementation
Parser<ExpressionNode> dictOrSetComp() => [
seq2(
seq3(ref0(singleExpression), ref1(token, ':'), ref0(singleExpression)),
ref0(forIfClauses),
).map2(
(pair, clauses) =>
DictCompNode(key: pair.$1, value: pair.$3, generators: clauses),
),
ref0(comprehensionClause).map(
(comp) => SetCompNode(element: comp.element, generators: comp.generators),
),
].toChoiceParser();