function * applyRuleFilters(bid, board, vulnerability, context) {
return yield coArray(rules)
.every(function * (rule) {
return yield Promise.resolve(rule.filter(bid, board, vulnerability, context));
})
.result;
}
function * generateBid(gameState) {
let vulnerability = 0;
let game = new GameQuery(gameState);
let context = {};
let candidates = game.currentBoard.getLegalBids();
candidates = candidates.filter(bid => bid.type === BidType.Call);
candidates = yield coArray(candidates)
.filter(function * (bid) {
return yield applyRuleFilters(bid, game.currentBoard, vulnerability, context);
})
.result;
candidates = yield * applyConventions(candidates, game.currentBoard, vulnerability, context);
let bid = choose(candidates);
return bid;
}