@1771technologies/lytenyte-pro/dist/expressions/plugins/booleans.js

Blazingly fast headless React data grid with 100s of features.

import { current, advance } from "../parser/parser-context.js";
export const booleansPlugin = {
    name: "booleans",
    parsePrefix: (ctx) => {
        const tok = current(ctx);
        if (tok.type === "Boolean") {
            advance(ctx);
            return {
                type: "BooleanLiteral",
                value: tok.value === "true",
                start: tok.start,
                end: tok.end,
            };
        }
        if (tok.type === "Null") {
            advance(ctx);
            return { type: "NullLiteral", value: null, start: tok.start, end: tok.end };
        }
        if (tok.type === "Undefined") {
            advance(ctx);
            return { type: "UndefinedLiteral", value: undefined, start: tok.start, end: tok.end };
        }
        return null;
    },
    evaluate: (node) => {
        if (node.type === "BooleanLiteral")
            return { value: node.value };
        if (node.type === "NullLiteral")
            return { value: null };
        if (node.type === "UndefinedLiteral")
            return { value: undefined };
        return null;
    },
};