feat: add molang package

1. upgrade bukkit chat
2. fix config update error

Signed-off-by: MiaoWoo <admin@yumc.pw>

packages/molang/src/parser/expressions/ternary.ts

@@ -0,0 +1,79 @@
+import { Expression, IExpression } from '../expression'
+import { VoidExpression } from './void'
+
+export class TernaryExpression extends Expression {
+	type = 'TernaryExpression'
+	protected leftResult: unknown
+
+	constructor(
+		protected leftExpression: IExpression,
+		protected thenExpression: IExpression,
+		protected elseExpression: IExpression
+	) {
+		super()
+	}
+
+	get allExpressions() {
+		if (this.leftExpression.isStatic())
+			return [
+				this.leftExpression,
+				this.leftExpression.eval()
+					? this.thenExpression
+					: this.elseExpression,
+			]
+		return [this.leftExpression, this.thenExpression, this.elseExpression]
+	}
+	setExpressionAt(index: number, expr: IExpression) {
+		if (index === 0) this.leftExpression = expr
+		else if (index === 1) this.thenExpression = expr
+		else if (index === 2) this.elseExpression = expr
+	}
+
+	get isReturn() {
+		if (this.leftResult === undefined)
+			return this.thenExpression.isReturn && this.elseExpression.isReturn
+		return this.leftResult
+			? this.thenExpression.isReturn
+			: this.elseExpression.isReturn
+	}
+	get hasReturn() {
+		return this.thenExpression.isReturn || this.elseExpression.isReturn
+	}
+	get isContinue() {
+		if (this.leftResult === undefined)
+			return (
+				this.thenExpression.isContinue && this.elseExpression.isContinue
+			)
+		return this.leftResult
+			? this.thenExpression.isContinue
+			: this.elseExpression.isContinue
+	}
+	get isBreak() {
+		if (this.leftResult === undefined)
+			return this.thenExpression.isBreak && this.elseExpression.isBreak
+		return this.leftResult
+			? this.thenExpression.isBreak
+			: this.elseExpression.isBreak
+	}
+
+	isStatic() {
+		return (
+			this.leftExpression.isStatic() &&
+			this.thenExpression.isStatic() &&
+			this.elseExpression.isStatic()
+		)
+	}
+
+	eval() {
+		this.leftResult = this.leftExpression.eval()
+		return this.leftResult
+			? this.thenExpression.eval()
+			: this.elseExpression.eval()
+	}
+
+	toString() {
+		if (this.elseExpression instanceof VoidExpression)
+			return `${this.leftExpression.toString()}?${this.thenExpression.toString()}`
+		return `${this.leftExpression.toString()}?${this.thenExpression.toString()}:${this.elseExpression.toString()}`
+	}
+}