MiaoWoo
6816e51239
1. upgrade bukkit chat 2. fix config update error Signed-off-by: MiaoWoo <admin@yumc.pw>
27 lines
922 B
TypeScript
27 lines
922 B
TypeScript
import { Parser } from '../parse'
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import { Token } from '../../tokenizer/token'
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import { IExpression } from '../expression'
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import { GenericOperatorExpression } from '../expressions/genericOperator'
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import { IInfixParselet } from './infix'
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import { TernaryParselet } from './ternary'
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import { EPrecedence } from '../precedence'
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const ternaryParselet = new TernaryParselet(EPrecedence.CONDITIONAL)
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export class QuestionOperator implements IInfixParselet {
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constructor(public precedence = 0) {}
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parse(parser: Parser, leftExpression: IExpression, token: Token) {
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if (parser.match('QUESTION')) {
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return new GenericOperatorExpression(
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leftExpression,
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parser.parseExpression(this.precedence),
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'??',
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(leftExpression: IExpression, rightExpression: IExpression) =>
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leftExpression.eval() ?? rightExpression.eval()
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)
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} else {
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return ternaryParselet.parse(parser, leftExpression, token)
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}
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}
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}
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