@qualifyze/airtable-formulator/lib/ast/parse.js

Airtable Formula Manipulator

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.parse = void 0;
const tokenize_1 = require("./tokenize");
const nodes_1 = require("./nodes");
function reduceGroups(reducer) {
    // Using named function here as it makes debugging easier
    function reduceGroups(nodes) {
        return nodes.map((node) => (0, nodes_1.isGroupNode)(node)
            ? { ...node, members: reduceNodes(node.members) } ?? node
            : node);
    }
    const reduceNodes = (0, nodes_1.composeReducers)(reduceGroups, reducer);
    return reduceNodes;
}
const reduceNodes = reduceGroups((0, nodes_1.separateNodes)((0, nodes_1.eagerlyRepeat)((0, nodes_1.composeReducers)(nodes_1.reduceEnclosedExpressions, nodes_1.reduceFieldReferences, nodes_1.reduceFunctionReferences, nodes_1.reduceModifiers, nodes_1.reduceOperations, nodes_1.reduceArgumentLists, nodes_1.reduceFunctionCalls))));
/**
 * Parses a formula string into an AST.
 * @experimental This function is experimental, potentially unstable and may change in future versions.
 * @param formula
 * @param options
 */
function parse(formula, { removeSpace = false } = {}) {
    const tokenGroup = (0, tokenize_1.tokenize)(formula);
    const nodes = reduceNodes(tokenGroup.members);
    const [expression = null, unexpectedNode] = (0, nodes_1.reduceSpaces)(nodes);
    if (unexpectedNode) {
        throw new Error((0, nodes_1.createNodeErrorMessage)(unexpectedNode, `Unexpected node ${unexpectedNode.type}`));
    }
    if (expression !== null && !(0, nodes_1.isExpressionNode)(expression)) {
        throw new Error((0, nodes_1.createNodeErrorMessage)(expression, `Expected to find an expression, got ${expression.type} instead`));
    }
    if (expression && removeSpace) {
        const [expressionWithoutSpaces] = reduceGroups(nodes_1.reduceSpaces)([expression]);
        return expressionWithoutSpaces;
    }
    return expression;
}
exports.parse = parse;
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