ts-flex-query/helpers/serialize-expression-for-debugging.js

Flexible and type-safe data queries

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.serializeExpressionForDebugging = serializeExpressionForDebugging;
/**
 * Serializes an expression to JSON for debugging purposes.
 * Uses the expression's constructor name to identify their type.
 * Therefore, this method is not useful for minified JS code with changed class names.
 */
function serializeExpressionForDebugging(expression) {
    let nextSymbolIndex = 1;
    const knownSymbols = {};
    return JSON.stringify(expression, (_, value) => {
        var _a;
        if (typeof value === 'object' && value && value.constructor !== Object) {
            return Object.assign({ 
                // eslint-disable-next-line @typescript-eslint/naming-convention -- By design.
                __type: value.constructor.name }, value);
        }
        if (typeof value === 'symbol') {
            const index = (_a = knownSymbols[value]) !== null && _a !== void 0 ? _a : nextSymbolIndex++;
            knownSymbols[value] = index;
            return `${index}: ${value.toString()}`;
        }
        return value;
    });
}
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